LinuxLists.cc - [PATCH v1 00/17] Add MT8195 HDMI support

[permalink] [raw]

Subject: [PATCH v1 17/17] drm/mediatek: Add mt8195-dpi support to drm_drv

Add dpi support to enable the HDMI path.

Signed-off-by: Guillaume Ranquet <[email protected]>

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 72049a530ae1..27f029ca760b 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -820,6 +820,8 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
.data = (void *)MTK_DPI },
{ .compatible = "mediatek,mt8192-dpi",
.data = (void *)MTK_DPI },
+ { .compatible = "mediatek,mt8195-dpi",
+ .data = (void *)MTK_DPI },
{ .compatible = "mediatek,mt8195-dp-intf",
.data = (void *)MTK_DP_INTF },
{ .compatible = "mediatek,mt2701-dsi",

--
b4 0.10.0-dev

2022-09-19 17:34:14

[permalink] [raw]

Subject: [PATCH v1 11/17] drm/mediatek: hdmi: add mt8195 support

Adds hdmi and hdmi-ddc support for mt8195.

Signed-off-by: Guillaume Ranquet <[email protected]>

diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile
index 008ec69da67b..f1ef6c8ae2b8 100644
--- a/drivers/gpu/drm/mediatek/Makefile
+++ b/drivers/gpu/drm/mediatek/Makefile
@@ -24,6 +24,8 @@ mediatek-drm-hdmi-objs := mtk_cec.o \
mtk_hdmi.o \
mtk_hdmi_ddc.o \
mtk_hdmi_common.o \
+ mtk_mt8195_hdmi.o \
+ mtk_mt8195_hdmi_ddc.o \

obj-$(CONFIG_DRM_MEDIATEK_HDMI) += mediatek-drm-hdmi.o

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
index 9fe086e2cd7c..f6bfe6c1c0be 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
@@ -226,14 +226,22 @@ int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, struct platform_device *pdev,
goto put_device;
}
}
- }

- i2c_np = of_parse_phandle(remote, "ddc-i2c-bus", 0);
- if (!i2c_np) {
- of_node_put(pdev->dev.of_node);
- dev_err(dev, "Failed to find ddc-i2c-bus");
- ret = -EINVAL;
- goto put_device;
+ i2c_np = of_parse_phandle(remote, "ddc-i2c-bus", 0);
+ if (!i2c_np) {
+ of_node_put(pdev->dev.of_node);
+ dev_err(dev, "Failed to find ddc-i2c-bus");
+ ret = -EINVAL;
+ goto put_device;
+ }
+ } else {
+ i2c_np = of_parse_phandle(pdev->dev.of_node, "ddc-i2c-bus", 0);
+ if (!i2c_np) {
+ of_node_put(pdev->dev.of_node);
+ dev_err(dev, "Failed to find ddc-i2c-bus");
+ ret = -EINVAL;
+ goto put_device;
+ }
}

hdmi->ddc_adpt = of_find_i2c_adapter_by_node(i2c_np);
@@ -372,6 +380,17 @@ static const struct mtk_hdmi_conf mtk_hdmi_conf_mt8173 = {
.num_clocks = MTK_MT8183_HDMI_CLK_COUNT,
};

+static const struct mtk_hdmi_conf mtk_hdmi_conf_mt8195 = {
+ .has_frame_colorimetry = true,
+ .bridge_funcs = &mtk_mt8195_hdmi_bridge_funcs,
+ .mtk_hdmi_output_init = mtk_hdmi_output_init_mt8195,
+ .mtk_hdmi_clk_disable = mtk_hdmi_clk_disable_mt8195,
+ .mtk_hdmi_clk_enable = mtk_hdmi_clk_enable_mt8195,
+ .set_hdmi_codec_pdata = set_hdmi_codec_pdata_mt8195,
+ .mtk_hdmi_clock_names = mtk_hdmi_clk_names_mt8195,
+ .num_clocks = MTK_MT8195_HDMI_CLK_COUNT,
+};
+
static const struct of_device_id mtk_drm_hdmi_of_ids[] = {
{ .compatible = "mediatek,mt2701-hdmi",
.data = &mtk_hdmi_conf_mt2701,
@@ -382,6 +401,9 @@ static const struct of_device_id mtk_drm_hdmi_of_ids[] = {
{ .compatible = "mediatek,mt8173-hdmi",
.data = &mtk_hdmi_conf_mt8173,
},
+ { .compatible = "mediatek,mt8195-hdmi",
+ .data = &mtk_hdmi_conf_mt8195,
+ },
{}
};
MODULE_DEVICE_TABLE(of, mtk_drm_hdmi_of_ids);
@@ -430,6 +452,7 @@ static struct platform_driver mtk_hdmi_driver = {
static struct platform_driver * const mtk_hdmi_drivers[] = {
&mtk_hdmi_ddc_driver,
&mtk_cec_driver,
+ &mtk_hdmi_mt8195_ddc_driver,
&mtk_hdmi_driver,
};

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.h b/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
index 75a9b62dccee..737306611fb9 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
@@ -27,6 +27,7 @@

#include "mtk_cec.h"
#include "mtk_hdmi.h"
+#include "mtk_mt8195_hdmi.h"

struct mtk_hdmi_conf {
bool tz_disabled;
diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
new file mode 100644
index 000000000000..39e07a6dd490
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
@@ -0,0 +1,1387 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2022 MediaTek Inc.
+ * Copyright (c) 2022 BayLibre, SAS
+ */
+
+#include <linux/arm-smccc.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/debugfs.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
+#include <linux/of_platform.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_gpio.h>
+#include <linux/of_graph.h>
+#include <linux/pm_wakeup.h>
+#include <linux/timer.h>
+
+#include <drm/drm_displayid.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_print.h>
+#include <drm/drm_probe_helper.h>
+#include <drm/display/drm_scdc_helper.h>
+
+#include "mtk_drm_crtc.h"
+#include "mtk_hdmi_common.h"
+#include "mtk_mt8195_hdmi.h"
+#include "mtk_mt8195_hdmi_regs.h"
+
+#define RGB444_8bit BIT(0)
+#define RGB444_10bit BIT(1)
+#define RGB444_12bit BIT(2)
+#define RGB444_16bit BIT(3)
+
+#define YCBCR444_8bit BIT(4)
+#define YCBCR444_10bit BIT(5)
+#define YCBCR444_12bit BIT(6)
+#define YCBCR444_16bit BIT(7)
+
+#define YCBCR422_8bit_NO_SUPPORT BIT(8)
+#define YCBCR422_10bit_NO_SUPPORT BIT(9)
+#define YCBCR422_12bit BIT(10)
+#define YCBCR422_16bit_NO_SUPPORT BIT(11)
+
+#define YCBCR420_8bit BIT(12)
+#define YCBCR420_10bit BIT(13)
+#define YCBCR420_12bit BIT(14)
+#define YCBCR420_16bit BIT(15)
+
+#define BYTES_TO_UINT32(msb, b1, b2, lsb) \
+ ((((msb) & 0xff) << 24) + (((b1) & 0xff) << 16) + (((b2) & 0xff) << 8) + \
+ (((lsb) & 0xff)))
+
+const char *const mtk_hdmi_clk_names_mt8195[MTK_MT8195_HDMI_CLK_COUNT] = {
+ [MTK_MT8195_HDIM_HDCP_SEL] = "hdcp_sel",
+ [MTK_MT8195_HDMI_HDCP_24M_SEL] = "hdcp24_sel",
+ [MTK_MT8195_HDMI_VPP_SPLIT_HDMI] = "split_hdmi",
+};
+
+static inline struct mtk_hdmi *hdmi_ctx_from_conn(struct drm_connector *c)
+{
+ return container_of(c, struct mtk_hdmi, conn);
+}
+
+static inline void mtk_hdmi_clr_all_int_status(struct mtk_hdmi *hdmi)
+{
+ /*clear all tx irq*/
+ mtk_hdmi_write(hdmi, TOP_INT_CLR00, 0xffffffff);
+ mtk_hdmi_write(hdmi, TOP_INT_CLR00, 0x00000000);
+ mtk_hdmi_write(hdmi, TOP_INT_CLR01, 0xffffffff);
+ mtk_hdmi_write(hdmi, TOP_INT_CLR01, 0x00000000);
+}
+
+static inline void mtk_hdmi_disable_all_int(struct mtk_hdmi *hdmi)
+{
+ /*disable all tx irq*/
+ mtk_hdmi_write(hdmi, TOP_INT_MASK00, 0x00000000);
+ mtk_hdmi_write(hdmi, TOP_INT_MASK01, 0x00000000);
+}
+
+static inline void mtk_hdmi_en_hdcp_reauth_int(struct mtk_hdmi *hdmi,
+ bool enable)
+{
+ if (enable)
+ mtk_hdmi_mask(hdmi, TOP_INT_MASK00,
+ HDCP2X_RX_REAUTH_REQ_DDCM_INT_UNMASK,
+ HDCP2X_RX_REAUTH_REQ_DDCM_INT_UNMASK);
+ else
+ mtk_hdmi_mask(hdmi, TOP_INT_MASK00,
+ HDCP2X_RX_REAUTH_REQ_DDCM_INT_MASK,
+ HDCP2X_RX_REAUTH_REQ_DDCM_INT_UNMASK);
+}
+
+static inline void mtk_hdmi_enable_hpd_pord_irq(struct mtk_hdmi *hdmi,
+ bool enable)
+{
+ if (enable)
+ mtk_hdmi_mask(hdmi, TOP_INT_MASK00, 0x0000000f, 0x0000000f);
+ else
+ mtk_hdmi_mask(hdmi, TOP_INT_MASK00, 0x00000000, 0x0000000f);
+}
+
+static inline void mtk_hdmi_clr_htplg_pord_irq(struct mtk_hdmi *hdmi)
+{
+ mtk_hdmi_mask(hdmi, TOP_INT_CLR00, 0x0000000f, 0x0000000f);
+ mtk_hdmi_mask(hdmi, TOP_INT_CLR00, 0x00000000, 0x0000000f);
+}
+
+static inline void mtk_hdmi_set_sw_hpd(struct mtk_hdmi *hdmi, bool high)
+{
+ if (high)
+ mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0x1 << HDMITX_SW_HPD_SHIFT,
+ HDMITX_SW_HPD);
+ else
+ mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0x0 << HDMITX_SW_HPD_SHIFT,
+ HDMITX_SW_HPD);
+}
+
+static inline void mtk_hdmi_force_hdcp_hpd(struct mtk_hdmi *hdmi)
+{
+ /* force HDCP HPD to 1*/
+ mtk_hdmi_mask(hdmi, HDCP2X_CTRL_0, HDCP2X_HPD_OVR, HDCP2X_HPD_OVR);
+ mtk_hdmi_mask(hdmi, HDCP2X_CTRL_0, HDCP2X_HPD_SW, HDCP2X_HPD_SW);
+}
+
+static void mtk_hdmi_disable_hdcp_encrypt(struct mtk_hdmi *hdmi)
+{
+ mtk_hdmi_mask(hdmi, HDCP2X_CTRL_0, 0x0 << HDCP2X_ENCRYPT_EN_SHIFT,
+ HDCP2X_ENCRYPT_EN);
+ mtk_hdmi_mask(hdmi, HDCP1X_CTRL, 0x0 << HDCP1X_ENC_EN_SHIFT,
+ HDCP1X_ENC_EN);
+}
+
+static void mtk_hdmi_yuv420_downsample(struct mtk_hdmi *hdmi, bool enable)
+{
+ if (enable) {
+ mtk_hdmi_mask(hdmi, HDMITX_CONFIG,
+ HDMI_YUV420_MODE | HDMITX_SW_HPD,
+ HDMI_YUV420_MODE | HDMITX_SW_HPD);
+ mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG,
+ C444_C422_CONFIG_ENABLE, C444_C422_CONFIG_ENABLE);
+ mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG,
+ C422_C420_CONFIG_ENABLE, C422_C420_CONFIG_ENABLE);
+ mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG, 0,
+ C422_C420_CONFIG_BYPASS);
+ mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG,
+ C422_C420_CONFIG_OUT_CB_OR_CR,
+ C422_C420_CONFIG_OUT_CB_OR_CR);
+ mtk_hdmi_mask(hdmi, VID_OUT_FORMAT,
+ OUTPUT_FORMAT_DEMUX_420_ENABLE,
+ OUTPUT_FORMAT_DEMUX_420_ENABLE);
+ } else {
+ mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0 | HDMITX_SW_HPD,
+ HDMI_YUV420_MODE | HDMITX_SW_HPD);
+ mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG, 0,
+ C444_C422_CONFIG_ENABLE);
+ mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG, 0,
+ C422_C420_CONFIG_ENABLE);
+ mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG,
+ C422_C420_CONFIG_BYPASS, C422_C420_CONFIG_BYPASS);
+ mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG, 0,
+ C422_C420_CONFIG_OUT_CB_OR_CR);
+ mtk_hdmi_mask(hdmi, VID_OUT_FORMAT, 0,
+ OUTPUT_FORMAT_DEMUX_420_ENABLE);
+ }
+}
+
+static bool mtk_hdmi_tmds_over_340M(struct mtk_hdmi *hdmi)
+{
+ unsigned long pixel_clk, tmds_clk;
+
+ pixel_clk = hdmi->mode.clock * 1000;
+
+ /* TMDS clk frequency */
+ if (hdmi->color_depth == HDMI_8_BIT)
+ tmds_clk = pixel_clk;
+ else if (hdmi->color_depth == HDMI_10_BIT)
+ tmds_clk = pixel_clk * 5 / 4;
+ else if (hdmi->color_depth == HDMI_12_BIT)
+ tmds_clk = pixel_clk * 3 / 2;
+ else if (hdmi->color_depth == HDMI_16_BIT)
+ tmds_clk = pixel_clk * 2;
+ else
+ /* Invalid color_depth */
+ return false;
+
+ if (tmds_clk >= 340000000 && hdmi->csp != HDMI_COLORSPACE_YUV420)
+ return true;
+
+ return false;
+}
+
+static inline void mtk_hdmi_enable_scrambling(struct mtk_hdmi *hdmi,
+ bool enable)
+{
+ usleep_range(100, 150);
+
+ if (enable)
+ mtk_hdmi_mask(hdmi, TOP_CFG00, SCR_ON | HDMI2_ON,
+ SCR_ON | HDMI2_ON);
+ else
+ mtk_hdmi_mask(hdmi, TOP_CFG00, SCR_OFF | HDMI2_OFF,
+ SCR_ON | HDMI2_ON);
+}
+
+static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black)
+{
+ if (black)
+ mtk_hdmi_mask(hdmi, TOP_VMUTE_CFG1, REG_VMUTE_EN, REG_VMUTE_EN);
+ else
+ mtk_hdmi_mask(hdmi, TOP_VMUTE_CFG1, 0, REG_VMUTE_EN);
+}
+
+static void mtk_hdmi_hw_reset(struct mtk_hdmi *hdmi)
+{
+ mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0x0 << HDMITX_SW_RSTB_SHIFT,
+ HDMITX_SW_RSTB);
+ udelay(5);
+ mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0x1 << HDMITX_SW_RSTB_SHIFT,
+ HDMITX_SW_RSTB);
+}
+
+static void mtk_hdmi_enable_hdmi_mode(struct mtk_hdmi *hdmi, bool enable)
+{
+ if (enable)
+ mtk_hdmi_mask(hdmi, TOP_CFG00, HDMI_MODE_HDMI, HDMI_MODE_HDMI);
+ else
+ mtk_hdmi_mask(hdmi, TOP_CFG00, HDMI_MODE_DVI, HDMI_MODE_HDMI);
+}
+
+static bool mtk_hdmi_sink_is_hdmi_device(struct mtk_hdmi *hdmi)
+{
+ if (hdmi->dvi_mode)
+ return false;
+ else
+ return true;
+}
+
+static void mtk_hdmi_set_deep_color(struct mtk_hdmi *hdmi, bool is_hdmi_sink)
+{
+ unsigned int deep_color = 0;
+
+ /* ycbcr422 12bit no deep color */
+ if (hdmi->csp == HDMI_COLORSPACE_YUV422) {
+ deep_color = DEEPCOLOR_MODE_8BIT;
+ } else {
+ switch (hdmi->color_depth) {
+ case HDMI_8_BIT:
+ deep_color = DEEPCOLOR_MODE_8BIT;
+ break;
+ case HDMI_10_BIT:
+ deep_color = DEEPCOLOR_MODE_10BIT;
+ break;
+ case HDMI_12_BIT:
+ deep_color = DEEPCOLOR_MODE_12BIT;
+ break;
+ case HDMI_16_BIT:
+ deep_color = DEEPCOLOR_MODE_16BIT;
+ break;
+ default:
+ WARN(1, "Unssupported color depth %d\n",
+ hdmi->color_depth);
+ }
+ }
+
+ mtk_hdmi_mask(hdmi, TOP_CFG00, deep_color, DEEPCOLOR_MODE_MASKBIT);
+
+ /* GCP */
+ mtk_hdmi_mask(hdmi, TOP_CFG00, 0, DEEPCOLOR_PAT_EN);
+ if (is_hdmi_sink && deep_color != DEEPCOLOR_MODE_8BIT)
+ mtk_hdmi_mask(hdmi, TOP_MISC_CTLR, DEEP_COLOR_ADD,
+ DEEP_COLOR_ADD);
+ else
+ mtk_hdmi_mask(hdmi, TOP_MISC_CTLR, 0, DEEP_COLOR_ADD);
+}
+
+static void mtk_hdmi_hw_audio_infoframe(struct mtk_hdmi *hdmi, u8 *buffer,
+ u8 len)
+{
+ enum hdmi_infoframe_type frame_type;
+ u8 frame_ver;
+ u8 frame_len;
+ u8 checksum;
+
+ frame_type = buffer[0];
+ frame_ver = buffer[1];
+ frame_len = buffer[2];
+ checksum = buffer[3];
+
+ mtk_hdmi_mask(hdmi, TOP_INFO_EN, AUD_DIS_WR | AUD_DIS,
+ AUD_EN_WR | AUD_EN);
+ mtk_hdmi_mask(hdmi, TOP_INFO_RPT, AUD_RPT_DIS, AUD_RPT_EN);
+
+ mtk_hdmi_write(hdmi, TOP_AIF_HEADER,
+ BYTES_TO_UINT32(0, frame_len, frame_ver, frame_type));
+ mtk_hdmi_write(hdmi, TOP_AIF_PKT00,
+ BYTES_TO_UINT32(buffer[6], buffer[5], buffer[4],
+ buffer[3]));
+ mtk_hdmi_write(hdmi, TOP_AIF_PKT01,
+ BYTES_TO_UINT32(0, 0, buffer[8], buffer[7]));
+ mtk_hdmi_write(hdmi, TOP_AIF_PKT02, 0);
+ mtk_hdmi_write(hdmi, TOP_AIF_PKT03, 0);
+ mtk_hdmi_mask(hdmi, TOP_INFO_RPT, AUD_RPT_EN, AUD_RPT_EN);
+ mtk_hdmi_mask(hdmi, TOP_INFO_EN, AUD_EN_WR | AUD_EN,
+ AUD_EN_WR | AUD_EN);
+}
+
+static void mtk_hdmi_hw_avi_infoframe(struct mtk_hdmi *hdmi, u8 *buffer, u8 len)
+{
+ mtk_hdmi_mask(hdmi, TOP_INFO_EN, AVI_DIS_WR | AVI_DIS,
+ AVI_EN_WR | AVI_EN);
+ mtk_hdmi_mask(hdmi, TOP_INFO_RPT, AVI_RPT_DIS, AVI_RPT_EN);
+
+ mtk_hdmi_write(hdmi, TOP_AVI_HEADER,
+ BYTES_TO_UINT32(0, buffer[2], buffer[1], buffer[0]));
+
+ mtk_hdmi_write(hdmi, TOP_AVI_PKT00,
+ BYTES_TO_UINT32(buffer[6], buffer[5], buffer[4],
+ buffer[3]));
+
+ mtk_hdmi_write(hdmi, TOP_AVI_PKT01,
+ BYTES_TO_UINT32(0, buffer[9], buffer[8], buffer[7]));
+
+ mtk_hdmi_write(hdmi, TOP_AVI_PKT02,
+ BYTES_TO_UINT32(buffer[13], buffer[12], buffer[11],
+ buffer[10]));
+
+ mtk_hdmi_write(hdmi, TOP_AVI_PKT03,
+ BYTES_TO_UINT32(0, buffer[16], buffer[15], buffer[14]));
+
+ mtk_hdmi_write(hdmi, TOP_AVI_PKT04, 0);
+ mtk_hdmi_write(hdmi, TOP_AVI_PKT05, 0);
+
+ mtk_hdmi_mask(hdmi, TOP_INFO_RPT, AVI_RPT_EN, AVI_RPT_EN);
+ mtk_hdmi_mask(hdmi, TOP_INFO_EN, AVI_EN_WR | AVI_EN,
+ AVI_EN_WR | AVI_EN);
+}
+
+static void mtk_hdmi_hw_spd_infoframe(struct mtk_hdmi *hdmi, u8 *buffer, u8 len)
+{
+ mtk_hdmi_mask(hdmi, TOP_INFO_EN, SPD_DIS_WR | SPD_DIS,
+ SPD_EN_WR | SPD_EN);
+ mtk_hdmi_mask(hdmi, TOP_INFO_RPT, SPD_RPT_DIS, SPD_RPT_EN);
+
+ mtk_hdmi_write(hdmi, TOP_SPDIF_HEADER,
+ BYTES_TO_UINT32(0, buffer[2], buffer[1], buffer[0]));
+
+ mtk_hdmi_write(hdmi, TOP_SPDIF_PKT00,
+ BYTES_TO_UINT32(buffer[6], buffer[5], buffer[4], buffer[3]));
+
+ mtk_hdmi_write(hdmi, TOP_SPDIF_PKT01,
+ BYTES_TO_UINT32(0, buffer[9], buffer[8], buffer[7]));
+
+ mtk_hdmi_write(hdmi, TOP_SPDIF_PKT02,
+ BYTES_TO_UINT32(buffer[13], buffer[12], buffer[11], buffer[10]));
+
+ mtk_hdmi_write(hdmi, TOP_SPDIF_PKT03,
+ BYTES_TO_UINT32(0, buffer[16], buffer[15], buffer[14]));
+
+ mtk_hdmi_write(hdmi, TOP_SPDIF_PKT04,
+ BYTES_TO_UINT32(buffer[20], buffer[19], buffer[18], buffer[17]));
+
+ mtk_hdmi_write(hdmi, TOP_SPDIF_PKT05,
+ BYTES_TO_UINT32(0, buffer[23], buffer[22], buffer[21]));
+
+ mtk_hdmi_write(hdmi, TOP_SPDIF_PKT06,
+ BYTES_TO_UINT32(buffer[27], buffer[26], buffer[25], buffer[24]));
+
+ mtk_hdmi_write(hdmi, TOP_SPDIF_PKT07,
+ BYTES_TO_UINT32(0, 0, 0, buffer[28]));
+
+ mtk_hdmi_mask(hdmi, TOP_INFO_RPT, SPD_RPT_EN, SPD_RPT_EN);
+ mtk_hdmi_mask(hdmi, TOP_INFO_EN, SPD_EN_WR | SPD_EN,
+ SPD_EN_WR | SPD_EN);
+}
+
+static int mtk_hdmi_setup_audio_infoframe(struct mtk_hdmi *hdmi)
+{
+ struct hdmi_codec_params *params = &hdmi->aud_param.codec_params;
+ struct hdmi_audio_infoframe frame;
+ u8 buffer[14];
+ ssize_t err;
+
+ memcpy(&frame, &params->cea, sizeof(struct hdmi_audio_infoframe));
+
+ err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
+ if (err < 0)
+ return err;
+
+ mtk_hdmi_hw_audio_infoframe(hdmi, buffer, sizeof(buffer));
+ return 0;
+}
+
+static void mtk_hdmi_hw_send_aud_packet(struct mtk_hdmi *hdmi, bool enable)
+{
+ if (enable)
+ mtk_hdmi_mask(hdmi, AIP_TXCTRL, 0, AUD_PACKET_DROP);
+ else
+ mtk_hdmi_mask(hdmi, AIP_TXCTRL, AUD_PACKET_DROP,
+ AUD_PACKET_DROP);
+}
+
+static inline void mtk_hdmi_hw_send_av_mute(struct mtk_hdmi *hdmi)
+{
+ /*GCP packet */
+ mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_CLR_MUTE_EN);
+ mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_SET_MUTE_EN);
+ mtk_hdmi_mask(hdmi, TOP_INFO_RPT, 0, CP_RPT_EN);
+ mtk_hdmi_mask(hdmi, TOP_INFO_EN, 0, CP_EN | CP_EN_WR);
+
+ mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_CLR_MUTE_EN);
+ mtk_hdmi_mask(hdmi, TOP_CFG01, CP_SET_MUTE_EN, CP_SET_MUTE_EN);
+ mtk_hdmi_mask(hdmi, TOP_INFO_RPT, CP_RPT_EN, CP_RPT_EN);
+ mtk_hdmi_mask(hdmi, TOP_INFO_EN, CP_EN | CP_EN_WR, CP_EN | CP_EN_WR);
+}
+
+static inline void mtk_hdmi_hw_send_av_unmute(struct mtk_hdmi *hdmi)
+{
+ /*GCP packet */
+ mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_CLR_MUTE_EN);
+ mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_SET_MUTE_EN);
+ mtk_hdmi_mask(hdmi, TOP_INFO_RPT, 0, CP_RPT_EN);
+ mtk_hdmi_mask(hdmi, TOP_INFO_EN, 0, CP_EN | CP_EN_WR);
+
+ mtk_hdmi_mask(hdmi, TOP_CFG01, CP_CLR_MUTE_EN, CP_CLR_MUTE_EN);
+ mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_SET_MUTE_DIS);
+ mtk_hdmi_mask(hdmi, TOP_INFO_RPT, CP_RPT_EN, CP_RPT_EN);
+ mtk_hdmi_mask(hdmi, TOP_INFO_EN, CP_EN | CP_EN_WR, CP_EN | CP_EN_WR);
+}
+
+static void mtk_hdmi_hw_ncts_enable(struct mtk_hdmi *hdmi, bool enable)
+{
+ unsigned int data;
+
+ mtk_hdmi_read(hdmi, AIP_CTRL, &data);
+
+ if (enable)
+ data |= CTS_SW_SEL;
+ else
+ data &= ~CTS_SW_SEL;
+
+ mtk_hdmi_write(hdmi, AIP_CTRL, data);
+}
+
+static void mtk_hdmi_hw_aud_set_channel_status(struct mtk_hdmi *hdmi,
+ u8 *channel_status)
+{
+ /* actually, only the first 5 or 7 bytes of Channel Status
+ * contain useful information
+ */
+ mtk_hdmi_write(hdmi, AIP_I2S_CHST0,
+ BYTES_TO_UINT32(channel_status[3], channel_status[2],
+ channel_status[1], channel_status[0]));
+ mtk_hdmi_write(hdmi, AIP_I2S_CHST1,
+ BYTES_TO_UINT32(0, channel_status[6], channel_status[5],
+ channel_status[4]));
+}
+
+struct hdmi_acr_n {
+ unsigned int clock;
+ unsigned int n[3];
+};
+
+/* Recommended N values from HDMI specification, tables 7-1 to 7-3 */
+static const struct hdmi_acr_n hdmi_rec_n_table[] = {
+ /* Clock, N: 32kHz 44.1kHz 48kHz */
+ { 25175, { 4576, 7007, 6864 } },
+ { 74176, { 11648, 17836, 11648 } },
+ { 148352, { 11648, 8918, 5824 } },
+ { 296703, { 5824, 4459, 5824 } },
+ { 297000, { 3072, 4704, 5120 } },
+ { 0, { 4096, 6272, 6144 } }, /* all other TMDS clocks */
+};
+
+/**
+ * hdmi_recommended_n() - Return N value recommended by HDMI specification
+ * @freq: audio sample rate in Hz
+ * @clock: rounded TMDS clock in kHz
+ */
+static int hdmi_recommended_n(unsigned int freq, unsigned int clock)
+{
+ const struct hdmi_acr_n *recommended;
+ unsigned int i;
+
+ for (i = 0; i < ARRAY_SIZE(hdmi_rec_n_table) - 1; i++) {
+ if (clock == hdmi_rec_n_table[i].clock)
+ break;
+ }
+
+ if (i == ARRAY_SIZE(hdmi_rec_n_table))
+ return -EINVAL;
+
+ recommended = hdmi_rec_n_table + i;
+
+ switch (freq) {
+ case 32000:
+ return recommended->n[0];
+ case 44100:
+ return recommended->n[1];
+ case 48000:
+ return recommended->n[2];
+ case 88200:
+ return recommended->n[1] * 2;
+ case 96000:
+ return recommended->n[2] * 2;
+ case 176400:
+ return recommended->n[1] * 4;
+ case 192000:
+ return recommended->n[2] * 4;
+ default:
+ return (128 * freq) / 1000;
+ }
+}
+
+static unsigned int hdmi_mode_clock_to_hz(unsigned int clock)
+{
+ switch (clock) {
+ case 25175:
+ return 25174825; /* 25.2/1.001 MHz */
+ case 74176:
+ return 74175824; /* 74.25/1.001 MHz */
+ case 148352:
+ return 148351648; /* 148.5/1.001 MHz */
+ case 296703:
+ return 296703297; /* 297/1.001 MHz */
+ default:
+ return clock * 1000;
+ }
+}
+
+static unsigned int hdmi_expected_cts(unsigned int audio_sample_rate,
+ unsigned int tmds_clock, unsigned int n)
+{
+ return DIV_ROUND_CLOSEST_ULL((u64)hdmi_mode_clock_to_hz(tmds_clock) * n,
+ 128 * audio_sample_rate);
+}
+
+static void mtk_hdmi_hw_aud_set_ncts(struct mtk_hdmi *hdmi,
+ unsigned int sample_rate,
+ unsigned int clock)
+{
+ unsigned int ncts;
+ int n;
+
+ n = hdmi_recommended_n(sample_rate, clock);
+
+ if (n == -EINVAL) {
+ DRM_ERROR("Invalid sample rate: %u\n", sample_rate);
+ return;
+ }
+
+ ncts = hdmi_expected_cts(sample_rate, clock, n);
+ mtk_hdmi_write(hdmi, AIP_N_VAL, n);
+ mtk_hdmi_write(hdmi, AIP_CTS_SVAL, ncts);
+}
+
+static void mtk_hdmi_aud_enable_packet(struct mtk_hdmi *hdmi, bool enable)
+{
+ mtk_hdmi_hw_send_aud_packet(hdmi, enable);
+}
+
+static void mtk_hdmi_aud_on_off_hw_ncts(struct mtk_hdmi *hdmi, bool on)
+{
+ mtk_hdmi_hw_ncts_enable(hdmi, on);
+}
+
+static void mtk_hdmi_audio_dsd_config(struct mtk_hdmi *hdmi,
+ unsigned char chnum, bool dsd_bypass)
+{
+ mtk_hdmi_mask(hdmi, AIP_CTRL, DSD_EN, SPDIF_EN | DSD_EN | HBRA_ON);
+ mtk_hdmi_mask(hdmi, AIP_TXCTRL, DSD_MUTE_DATA, DSD_MUTE_DATA);
+ if (dsd_bypass)
+ mtk_hdmi_write(hdmi, TOP_AUD_MAP, 0x75316420);
+ else
+ mtk_hdmi_write(hdmi, TOP_AUD_MAP, 0x04230150);
+
+ mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0, I2S2DSD_EN);
+}
+
+static inline void mtk_hdmi_hw_i2s_fifo_map(struct mtk_hdmi *hdmi,
+ unsigned int fifo_mapping)
+{
+ mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, fifo_mapping,
+ FIFO3_MAP | FIFO2_MAP | FIFO1_MAP | FIFO0_MAP);
+}
+
+static inline void mtk_hdmi_hw_i2s_ch_number(struct mtk_hdmi *hdmi,
+ unsigned int chnum)
+{
+ mtk_hdmi_mask(hdmi, AIP_CTRL, chnum << I2S_EN_SHIFT, I2S_EN);
+}
+
+static void mtk_hdmi_hw_i2s_ch_mapping(struct mtk_hdmi *hdmi,
+ unsigned char chnum,
+ unsigned char mapping)
+{
+ unsigned int bdata;
+
+ switch (chnum) {
+ case 2:
+ bdata = 0x1;
+ break;
+ case 3:
+ bdata = 0x3;
+ break;
+ case 6:
+ if (mapping == 0x0E) {
+ bdata = 0xf;
+ break;
+ }
+ fallthrough;
+ case 5:
+ bdata = 0x7;
+ break;
+ case 7:
+ case 8:
+ bdata = 0xf;
+ break;
+ default:
+ bdata = 0x1;
+ }
+
+ mtk_hdmi_hw_i2s_fifo_map(hdmi, (MAP_SD3 << 6) | (MAP_SD2 << 4) |
+ (MAP_SD1 << 2) | (MAP_SD0 << 0));
+ mtk_hdmi_hw_i2s_ch_number(hdmi, bdata);
+
+ if (chnum == 2)
+ mtk_hdmi_mask(hdmi, AIP_TXCTRL, LAYOUT0, LAYOUT1);
+ else
+ mtk_hdmi_mask(hdmi, AIP_TXCTRL, LAYOUT1, LAYOUT1);
+}
+
+static void mtk_hdmi_i2s_data_fmt(struct mtk_hdmi *hdmi, unsigned char fmt)
+{
+ unsigned int u4Data;
+
+ mtk_hdmi_read(hdmi, AIP_I2S_CTRL, &u4Data);
+ u4Data &= ~(WS_HIGH | I2S_1ST_BIT_NOSHIFT | JUSTIFY_RIGHT);
+
+ switch (fmt) {
+ case HDMI_I2S_MODE_RJT_24BIT:
+ case HDMI_I2S_MODE_RJT_16BIT:
+ u4Data |= (WS_HIGH | I2S_1ST_BIT_NOSHIFT | JUSTIFY_RIGHT);
+ u4Data |= (WS_HIGH | I2S_1ST_BIT_NOSHIFT | JUSTIFY_RIGHT);
+ break;
+
+ case HDMI_I2S_MODE_LJT_24BIT:
+ case HDMI_I2S_MODE_LJT_16BIT:
+ u4Data |= (WS_HIGH | I2S_1ST_BIT_NOSHIFT);
+ u4Data |= (WS_HIGH | I2S_1ST_BIT_NOSHIFT);
+ break;
+
+ case HDMI_I2S_MODE_I2S_24BIT:
+ case HDMI_I2S_MODE_I2S_16BIT:
+ default:
+ break;
+ }
+ mtk_hdmi_write(hdmi, AIP_I2S_CTRL, u4Data);
+}
+
+static inline void mtk_hdmi_i2s_sck_edge(struct mtk_hdmi *hdmi,
+ unsigned int edge)
+{
+ mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, edge, SCK_EDGE_RISE);
+}
+
+static inline void mtk_hdmi_i2s_cbit_order(struct mtk_hdmi *hdmi,
+ unsigned int cbit)
+{
+ mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, cbit, CBIT_ORDER_SAME);
+}
+
+static inline void mtk_hdmi_i2s_vbit(struct mtk_hdmi *hdmi, unsigned int vbit)
+{
+ mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, vbit, VBIT_COM);
+}
+
+static inline void mtk_hdmi_i2s_data_direction(struct mtk_hdmi *hdmi,
+ unsigned int data_dir)
+{
+ mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, data_dir, DATA_DIR_LSB);
+}
+
+static inline void mtk_hdmi_hw_audio_type(struct mtk_hdmi *hdmi,
+ unsigned int spdif_i2s)
+{
+ mtk_hdmi_mask(hdmi, AIP_CTRL, spdif_i2s << SPDIF_EN_SHIFT, SPDIF_EN);
+}
+
+static unsigned char mtk_hdmi_get_i2s_ch_mapping(struct mtk_hdmi *hdmi,
+ unsigned char channel_type)
+{
+ unsigned char channelmap = 0x00;
+
+ switch (channel_type) {
+ case HDMI_AUD_CHAN_TYPE_1_1:
+ case HDMI_AUD_CHAN_TYPE_2_1:
+ channelmap = 0x01;
+ break;
+
+ case HDMI_AUD_CHAN_TYPE_3_0:
+ channelmap = 0x02;
+ break;
+
+ case HDMI_AUD_CHAN_TYPE_3_1:
+ channelmap = 0x03;
+ break;
+
+ case HDMI_AUD_CHAN_TYPE_3_0_LRS:
+ case HDMI_AUD_CHAN_TYPE_4_0:
+ channelmap = 0x08;
+ break;
+
+ case HDMI_AUD_CHAN_TYPE_5_1:
+ channelmap = 0x0B;
+ break;
+
+ case HDMI_AUD_CHAN_TYPE_4_1_CLRS:
+ case HDMI_AUD_CHAN_TYPE_6_0:
+ case HDMI_AUD_CHAN_TYPE_6_0_CS:
+ case HDMI_AUD_CHAN_TYPE_6_0_CH:
+ case HDMI_AUD_CHAN_TYPE_6_0_OH:
+ case HDMI_AUD_CHAN_TYPE_6_0_CHR:
+ channelmap = 0x0E;
+ break;
+
+ case HDMI_AUD_CHAN_TYPE_1_0:
+ case HDMI_AUD_CHAN_TYPE_2_0:
+ case HDMI_AUD_CHAN_TYPE_3_1_LRS:
+ case HDMI_AUD_CHAN_TYPE_4_1:
+ case HDMI_AUD_CHAN_TYPE_5_0:
+ case HDMI_AUD_CHAN_TYPE_4_0_CLRS:
+ case HDMI_AUD_CHAN_TYPE_6_1:
+ case HDMI_AUD_CHAN_TYPE_6_1_CS:
+ case HDMI_AUD_CHAN_TYPE_6_1_CH:
+ case HDMI_AUD_CHAN_TYPE_6_1_OH:
+ case HDMI_AUD_CHAN_TYPE_6_1_CHR:
+ case HDMI_AUD_CHAN_TYPE_7_0:
+ case HDMI_AUD_CHAN_TYPE_7_0_LH_RH:
+ case HDMI_AUD_CHAN_TYPE_7_0_LSR_RSR:
+ case HDMI_AUD_CHAN_TYPE_7_0_LC_RC:
+ case HDMI_AUD_CHAN_TYPE_7_0_LW_RW:
+ case HDMI_AUD_CHAN_TYPE_7_0_LSD_RSD:
+ case HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS:
+ case HDMI_AUD_CHAN_TYPE_7_0_LHS_RHS:
+ case HDMI_AUD_CHAN_TYPE_7_0_CS_CH:
+ case HDMI_AUD_CHAN_TYPE_7_0_CS_OH:
+ case HDMI_AUD_CHAN_TYPE_7_0_CS_CHR:
+ case HDMI_AUD_CHAN_TYPE_7_0_CH_OH:
+ case HDMI_AUD_CHAN_TYPE_7_0_CH_CHR:
+ case HDMI_AUD_CHAN_TYPE_7_0_OH_CHR:
+ case HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS_LSR_RSR:
+ case HDMI_AUD_CHAN_TYPE_8_0_LH_RH_CS:
+ case HDMI_AUD_CHAN_TYPE_7_1:
+ case HDMI_AUD_CHAN_TYPE_7_1_LH_RH:
+ case HDMI_AUD_CHAN_TYPE_7_1_LSR_RSR:
+ case HDMI_AUD_CHAN_TYPE_7_1_LC_RC:
+ case HDMI_AUD_CHAN_TYPE_7_1_LW_RW:
+ case HDMI_AUD_CHAN_TYPE_7_1_LSD_RSD:
+ case HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS:
+ case HDMI_AUD_CHAN_TYPE_7_1_LHS_RHS:
+ case HDMI_AUD_CHAN_TYPE_7_1_CS_CH:
+ case HDMI_AUD_CHAN_TYPE_7_1_CS_OH:
+ case HDMI_AUD_CHAN_TYPE_7_1_CS_CHR:
+ case HDMI_AUD_CHAN_TYPE_7_1_CH_OH:
+ case HDMI_AUD_CHAN_TYPE_7_1_CH_CHR:
+ case HDMI_AUD_CHAN_TYPE_7_1_OH_CHR:
+ case HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS_LSR_RSR:
+ channelmap = 0x00;
+ break;
+ }
+
+ return channelmap;
+}
+
+static inline void mtk_hdmi_hw_i2s_ch_swap(struct mtk_hdmi *hdmi,
+ unsigned char swapbit)
+{
+ mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, swapbit << 20, 0x0F << 20);
+}
+
+static void mtk_hdmi_hbr_config(struct mtk_hdmi *hdmi, bool dsd_bypass)
+{
+ if (dsd_bypass) {
+ mtk_hdmi_mask(hdmi, AIP_CTRL, HBRA_ON,
+ SPDIF_EN | DSD_EN | HBRA_ON);
+ mtk_hdmi_mask(hdmi, AIP_CTRL, I2S_EN, I2S_EN);
+ } else {
+ mtk_hdmi_mask(hdmi, AIP_CTRL, SPDIF_EN,
+ SPDIF_EN | DSD_EN | HBRA_ON);
+ mtk_hdmi_mask(hdmi, AIP_CTRL, SPDIF_INTERNAL_MODULE,
+ SPDIF_INTERNAL_MODULE);
+ mtk_hdmi_mask(hdmi, AIP_CTRL, HBR_FROM_SPDIF, HBR_FROM_SPDIF);
+ mtk_hdmi_mask(hdmi, AIP_CTRL, CTS_CAL_N4, CTS_CAL_N4);
+ }
+}
+
+static inline void mtk_hdmi_hw_spdif_config(struct mtk_hdmi *hdmi)
+{
+ mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, WR_1UI_UNLOCK, WR_1UI_LOCK);
+ mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, FS_UNOVERRIDE, FS_OVERRIDE_WRITE);
+ mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, WR_2UI_UNLOCK, WR_2UI_LOCK);
+ mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0x4 << MAX_1UI_WRITE_SHIFT,
+ MAX_1UI_WRITE);
+ mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0x9 << MAX_2UI_WRITE_SHIFT,
+ MAX_2UI_WRITE);
+ mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0x4 << AUD_ERR_THRESH_SHIFT,
+ AUD_ERR_THRESH);
+ mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, I2S2DSD_EN, I2S2DSD_EN);
+}
+
+static void mtk_hdmi_aud_set_input(struct mtk_hdmi *hdmi)
+{
+ unsigned char ChMapping;
+
+ mtk_hdmi_write(hdmi, TOP_AUD_MAP,
+ C_SD7 + C_SD6 + C_SD5 + C_SD4 + C_SD3 + C_SD2 + C_SD1 +
+ C_SD0);
+ mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0, 0x0F << 20);
+ mtk_hdmi_mask(hdmi, AIP_CTRL, 0,
+ SPDIF_EN | DSD_EN | HBRA_ON | CTS_CAL_N4 |
+ HBR_FROM_SPDIF | SPDIF_INTERNAL_MODULE);
+ mtk_hdmi_mask(hdmi, AIP_TXCTRL, 0, DSD_MUTE_DATA | LAYOUT1);
+
+ if (hdmi->aud_param.aud_input_type == HDMI_AUD_INPUT_I2S) {
+ if (hdmi->aud_param.aud_codec == HDMI_AUDIO_CODING_TYPE_DSD) {
+ mtk_hdmi_audio_dsd_config(hdmi, hdmi->aud_param.codec_params.channels, 0);
+ mtk_hdmi_hw_i2s_ch_mapping(hdmi, hdmi->aud_param.codec_params.channels, 1);
+ } else {
+ mtk_hdmi_i2s_data_fmt(hdmi, hdmi->aud_param.aud_i2s_fmt);
+ mtk_hdmi_i2s_sck_edge(hdmi, SCK_EDGE_RISE);
+ mtk_hdmi_i2s_cbit_order(hdmi, CBIT_ORDER_SAME);
+ mtk_hdmi_i2s_vbit(hdmi, VBIT_PCM);
+ mtk_hdmi_i2s_data_direction(hdmi, DATA_DIR_MSB);
+ mtk_hdmi_hw_audio_type(hdmi, HDMI_AUD_INPUT_I2S);
+ ChMapping = mtk_hdmi_get_i2s_ch_mapping(hdmi, hdmi->aud_param.aud_input_chan_type);
+ mtk_hdmi_hw_i2s_ch_mapping(hdmi, hdmi->aud_param.codec_params.channels, ChMapping);
+ mtk_hdmi_hw_i2s_ch_swap(hdmi, LFE_CC_SWAP);
+ }
+ } else {
+ if (hdmi->aud_param.aud_input_type == HDMI_AUD_INPUT_SPDIF &&
+ (hdmi->aud_param.aud_codec ==
+ HDMI_AUDIO_CODING_TYPE_DTS_HD ||
+ hdmi->aud_param.aud_codec ==
+ HDMI_AUDIO_CODING_TYPE_MLP) &&
+ hdmi->aud_param.codec_params.sample_rate == 768000) {
+ mtk_hdmi_hbr_config(hdmi, false);
+ } else {
+ mtk_hdmi_hw_spdif_config(hdmi);
+ mtk_hdmi_hw_i2s_ch_mapping(hdmi, 2, 0);
+ }
+ }
+}
+
+static void mtk_hdmi_aud_set_sw_ncts(struct mtk_hdmi *hdmi,
+ struct drm_display_mode *display_mode)
+{
+ unsigned int sample_rate = hdmi->aud_param.codec_params.sample_rate;
+
+ mtk_hdmi_aud_on_off_hw_ncts(hdmi, false);
+
+ mtk_hdmi_hw_aud_set_ncts(hdmi, sample_rate, display_mode->clock);
+}
+
+static inline void mtk_hdmi_hw_audio_input_enable(struct mtk_hdmi *hdmi,
+ unsigned int enable)
+{
+ if (enable)
+ mtk_hdmi_mask(hdmi, AIP_CTRL, AUD_IN_EN, AUD_IN_EN);
+ else
+ mtk_hdmi_mask(hdmi, AIP_CTRL, 0x0 << AUD_IN_EN_SHIFT,
+ AUD_IN_EN);
+}
+
+static void mtk_hdmi_aip_ctrl_init(struct mtk_hdmi *hdmi)
+{
+ mtk_hdmi_mask(hdmi, AIP_CTRL,
+ AUD_SEL_OWRT | NO_MCLK_CTSGEN_SEL | CTS_REQ_EN,
+ AUD_SEL_OWRT | NO_MCLK_CTSGEN_SEL | MCLK_EN | CTS_REQ_EN);
+ mtk_hdmi_mask(hdmi, AIP_TPI_CTRL, TPI_AUDIO_LOOKUP_DIS,
+ TPI_AUDIO_LOOKUP_EN);
+}
+
+static void mtk_hdmi_audio_reset(struct mtk_hdmi *hdmi, bool rst)
+{
+ if (rst)
+ mtk_hdmi_mask(hdmi, AIP_TXCTRL,
+ RST4AUDIO | RST4AUDIO_FIFO | RST4AUDIO_ACR,
+ RST4AUDIO | RST4AUDIO_FIFO | RST4AUDIO_ACR);
+ else
+ mtk_hdmi_mask(hdmi, AIP_TXCTRL, 0,
+ RST4AUDIO | RST4AUDIO_FIFO | RST4AUDIO_ACR);
+}
+
+static void mtk_hdmi_aud_output_config(struct mtk_hdmi *hdmi,
+ struct drm_display_mode *display_mode)
+{
+ mtk_hdmi_aud_enable_packet(hdmi, false);
+ mtk_hdmi_audio_reset(hdmi, true);
+ mtk_hdmi_aip_ctrl_init(hdmi);
+ mtk_hdmi_aud_set_input(hdmi);
+ mtk_hdmi_hw_aud_set_channel_status(hdmi, hdmi->aud_param.codec_params.iec.status);
+ mtk_hdmi_setup_audio_infoframe(hdmi);
+ mtk_hdmi_hw_audio_input_enable(hdmi, true);
+ mtk_hdmi_audio_reset(hdmi, false);
+ mtk_hdmi_aud_set_sw_ncts(hdmi, display_mode);
+ usleep_range(25, 50);
+ mtk_hdmi_aud_on_off_hw_ncts(hdmi, true);
+ mtk_hdmi_aud_enable_packet(hdmi, true);
+}
+
+void mtk_hdmi_output_init_mt8195(struct mtk_hdmi *hdmi)
+{
+ struct hdmi_audio_param *aud_param = &hdmi->aud_param;
+
+ aud_param->aud_codec = HDMI_AUDIO_CODING_TYPE_PCM;
+ aud_param->aud_sampe_size = HDMI_AUDIO_SAMPLE_SIZE_16;
+ aud_param->aud_input_type = HDMI_AUD_INPUT_I2S;
+ aud_param->aud_i2s_fmt = HDMI_I2S_MODE_I2S_24BIT;
+ aud_param->aud_mclk = HDMI_AUD_MCLK_128FS;
+ aud_param->aud_input_chan_type = HDMI_AUD_CHAN_TYPE_2_0;
+
+ hdmi->hpd = HDMI_PLUG_OUT;
+ hdmi->set_csp_depth = RGB444_8bit;
+ hdmi->csp = HDMI_COLORSPACE_RGB;
+ hdmi->color_depth = HDMI_8_BIT;
+ hdmi->colorimtery = HDMI_COLORIMETRY_NONE;
+ hdmi->extended_colorimetry = HDMI_EXTENDED_COLORIMETRY_RESERVED;
+ hdmi->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
+ hdmi->ycc_quantization_range = HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
+}
+
+static void mtk_hdmi_reset_colorspace_setting(struct mtk_hdmi *hdmi)
+{
+ hdmi->set_csp_depth = RGB444_8bit;
+ hdmi->csp = HDMI_COLORSPACE_RGB;
+ hdmi->color_depth = HDMI_8_BIT;
+ hdmi->colorimtery = HDMI_COLORIMETRY_NONE;
+ hdmi->extended_colorimetry = HDMI_EXTENDED_COLORIMETRY_RESERVED;
+ hdmi->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
+ hdmi->ycc_quantization_range = HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
+}
+
+static void mtk_hdmi_change_video_resolution(struct mtk_hdmi *hdmi)
+{
+ bool is_over_340M = false;
+ bool is_hdmi_sink = false;
+
+ mtk_hdmi_hw_reset(hdmi);
+ mtk_hdmi_set_sw_hpd(hdmi, true);
+ usleep_range(2, 5);
+
+ mtk_hdmi_write(hdmi, HDCP_TOP_CTRL, 0x0);
+ mtk_hdmi_en_hdcp_reauth_int(hdmi, true);
+ mtk_hdmi_enable_hpd_pord_irq(hdmi, true);
+ mtk_hdmi_force_hdcp_hpd(hdmi);
+
+ is_hdmi_sink = mtk_hdmi_sink_is_hdmi_device(hdmi);
+ mtk_hdmi_set_deep_color(hdmi, is_hdmi_sink);
+ mtk_hdmi_enable_hdmi_mode(hdmi, is_hdmi_sink);
+
+ usleep_range(5, 10);
+ mtk_hdmi_hw_vid_black(hdmi, true);
+ mtk_hdmi_hw_send_av_unmute(hdmi);
+
+ mtk_hdmi_mask(hdmi, TOP_CFG01, NULL_PKT_VSYNC_HIGH_EN,
+ NULL_PKT_VSYNC_HIGH_EN | NULL_PKT_EN);
+
+ is_over_340M = mtk_hdmi_tmds_over_340M(hdmi);
+ mtk_hdmi_enable_scrambling(hdmi, is_over_340M);
+
+ if (hdmi->csp == HDMI_COLORSPACE_YUV420)
+ mtk_hdmi_yuv420_downsample(hdmi, true);
+ else
+ mtk_hdmi_yuv420_downsample(hdmi, false);
+}
+
+static void mtk_hdmi_output_set_display_mode(struct mtk_hdmi *hdmi,
+ struct drm_display_mode *mode)
+{
+ int ret;
+ union phy_configure_opts opts = {
+ .dp = { .link_rate = hdmi->mode.clock * 1000 }
+ };
+
+ ret = phy_configure(hdmi->phy, &opts);
+ if (ret)
+ dev_err(hdmi->dev, "Setting clock=%d failed: %d", mode->clock, ret);
+
+ mtk_hdmi_change_video_resolution(hdmi);
+ mtk_hdmi_aud_output_config(hdmi, mode);
+}
+
+int mtk_hdmi_clk_enable_mt8195(struct mtk_hdmi *hdmi)
+{
+ int ret;
+
+ ret = clk_prepare_enable(hdmi->clk[MTK_MT8195_HDIM_HDCP_SEL]);
+ if (ret)
+ return ret;
+ ret = clk_prepare_enable(hdmi->clk[MTK_MT8195_HDMI_HDCP_24M_SEL]);
+ if (ret)
+ return ret;
+ ret = clk_prepare_enable(hdmi->clk[MTK_MT8195_HDMI_VPP_SPLIT_HDMI]);
+
+ return ret;
+}
+
+void mtk_hdmi_clk_disable_mt8195(struct mtk_hdmi *hdmi)
+{
+ clk_disable_unprepare(hdmi->clk[MTK_MT8195_HDIM_HDCP_SEL]);
+ clk_disable_unprepare(hdmi->clk[MTK_MT8195_HDMI_HDCP_24M_SEL]);
+ clk_disable_unprepare(hdmi->clk[MTK_MT8195_HDMI_VPP_SPLIT_HDMI]);
+}
+
+static void mtk_hdmi_hpd_event(enum hdmi_hpd_state hpd, struct device *dev)
+{
+ struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+ if (hdmi && hdmi->bridge.encoder && hdmi->bridge.encoder->dev)
+ drm_helper_hpd_irq_event(hdmi->bridge.encoder->dev);
+}
+
+static enum hdmi_hpd_state mtk_hdmi_hpd_pord_status(struct mtk_hdmi *hdmi)
+{
+ unsigned int hpd_status;
+
+ mtk_hdmi_read(hdmi, HPD_DDC_STATUS, &hpd_status);
+ if ((hpd_status & (HPD_PIN_STA | PORD_PIN_STA)) ==
+ (HPD_PIN_STA | PORD_PIN_STA))
+ return HDMI_PLUG_IN_AND_SINK_POWER_ON;
+ else if ((hpd_status & (HPD_PIN_STA | PORD_PIN_STA)) == PORD_PIN_STA)
+ return HDMI_PLUG_IN_ONLY;
+ else
+ return HDMI_PLUG_OUT;
+}
+
+static irqreturn_t mtk_hdmi_isr(int irq, void *arg)
+{
+ struct mtk_hdmi *hdmi = arg;
+ unsigned int int_status;
+ int ret = IRQ_HANDLED;
+
+ mtk_hdmi_read(hdmi, TOP_INT_STA00, &int_status);
+
+ /* handle hpd interrupt */
+ if (int_status & (PORD_F_INT_STA | PORD_R_INT_STA | HTPLG_F_INT_STA |
+ HTPLG_R_INT_STA)) {
+ mtk_hdmi_enable_hpd_pord_irq(hdmi, false);
+ mtk_hdmi_clr_htplg_pord_irq(hdmi);
+ ret = IRQ_WAKE_THREAD;
+ }
+
+ /*clear all tx irq*/
+ mtk_hdmi_clr_all_int_status(hdmi);
+
+ return ret;
+}
+
+static irqreturn_t mtk_hdmi_hpd_work_handle(int irq, void *arg)
+{
+ struct mtk_hdmi *hdmi = arg;
+ enum hdmi_hpd_state hpd;
+
+ hpd = mtk_hdmi_hpd_pord_status(hdmi);
+ if (hpd != hdmi->hpd) {
+ hdmi->hpd = hpd;
+ mtk_hdmi_hpd_event(hpd, hdmi->dev);
+ }
+
+ mtk_hdmi_enable_hpd_pord_irq(hdmi, true);
+ return IRQ_HANDLED;
+}
+
+static int mtk_hdmi_enable_disable(struct mtk_hdmi *hdmi, bool enable)
+{
+ int ret;
+
+ if (enable && !hdmi->hdmi_enabled) {
+ if (!hdmi->power_clk_enabled) {
+ /* power domain on */
+ ret = pm_runtime_get_sync(hdmi->dev);
+
+ /* clk on */
+ mtk_hdmi_clk_enable_mt8195(hdmi);
+ hdmi->power_clk_enabled = true;
+ }
+
+ if (!hdmi->irq_registered) {
+ /* disable all tx interrupts */
+ mtk_hdmi_disable_all_int(hdmi);
+ /* request irq */
+ hdmi->hdmi_irq =
+ irq_of_parse_and_map(hdmi->dev->of_node, 0);
+ ret = request_threaded_irq(hdmi->hdmi_irq, mtk_hdmi_isr,
+ mtk_hdmi_hpd_work_handle,
+ IRQF_TRIGGER_HIGH, "hdmiirq",
+ hdmi);
+ hdmi->irq_registered = true;
+ /* enable hpd interrupt */
+ mtk_hdmi_set_sw_hpd(hdmi, true);
+ mtk_hdmi_enable_hpd_pord_irq(hdmi, true);
+ }
+
+ } else if (!enable && hdmi->hdmi_enabled) {
+ if (hdmi->irq_registered) {
+ /* free irq */
+ free_irq(hdmi->hdmi_irq, NULL);
+ hdmi->irq_registered = false;
+ }
+
+ if (hdmi->power_clk_enabled) {
+ /* clk disable */
+ mtk_hdmi_clk_disable_mt8195(hdmi);
+ /* power domain off */
+ ret = pm_runtime_put_sync(hdmi->dev);
+ hdmi->power_clk_enabled = false;
+ }
+ }
+
+ hdmi->hdmi_enabled = enable;
+
+ return 0;
+}
+
+static const struct drm_prop_enum_list csp_depth_props[] = {
+ { __builtin_ffs(RGB444_8bit), "RGB444_8bit" },
+ { __builtin_ffs(RGB444_10bit), "RGB444_10bit" },
+ { __builtin_ffs(RGB444_12bit), "RGB444_10bit" },
+ { __builtin_ffs(RGB444_16bit), "RGB444_16bit" },
+ { __builtin_ffs(YCBCR444_8bit), "YCBCR444_8bit" },
+ { __builtin_ffs(YCBCR444_10bit), "YCBCR444_10bit" },
+ { __builtin_ffs(YCBCR444_12bit), "YCBCR444_12bit" },
+ { __builtin_ffs(YCBCR444_16bit), "YCBCR444_16bit" },
+ { __builtin_ffs(YCBCR422_8bit_NO_SUPPORT), "YCBCR422_8bit_NO_SUPPORT" },
+ { __builtin_ffs(YCBCR422_10bit_NO_SUPPORT),
+ "YCBCR422_10bit_NO_SUPPORT" },
+ { __builtin_ffs(YCBCR422_12bit), "YCBCR422_12bit" },
+ { __builtin_ffs(YCBCR422_16bit_NO_SUPPORT),
+ "YCBCR422_16bit_NO_SUPPORT" },
+ { __builtin_ffs(YCBCR420_8bit), "YCBCR420_8bit" },
+ { __builtin_ffs(YCBCR420_10bit), "YCBCR420_10bit" },
+ { __builtin_ffs(YCBCR420_12bit), "YCBCR420_12bit" },
+ { __builtin_ffs(YCBCR420_16bit), "YCBCR420_16bit" },
+};
+
+static void mtk_hdmi_convert_colorspace_depth(struct mtk_hdmi *hdmi)
+{
+ switch (hdmi->set_csp_depth) {
+ case RGB444_8bit:
+ hdmi->csp = HDMI_COLORSPACE_RGB;
+ hdmi->color_depth = HDMI_8_BIT;
+ break;
+ case RGB444_10bit:
+ hdmi->csp = HDMI_COLORSPACE_RGB;
+ hdmi->color_depth = HDMI_10_BIT;
+ break;
+ case RGB444_12bit:
+ hdmi->csp = HDMI_COLORSPACE_RGB;
+ hdmi->color_depth = HDMI_12_BIT;
+ break;
+ case RGB444_16bit:
+ hdmi->csp = HDMI_COLORSPACE_RGB;
+ hdmi->color_depth = HDMI_16_BIT;
+ break;
+ case YCBCR444_8bit:
+ hdmi->csp = HDMI_COLORSPACE_YUV444;
+ hdmi->color_depth = HDMI_8_BIT;
+ break;
+ case YCBCR444_10bit:
+ hdmi->csp = HDMI_COLORSPACE_YUV444;
+ hdmi->color_depth = HDMI_10_BIT;
+ break;
+ case YCBCR444_12bit:
+ hdmi->csp = HDMI_COLORSPACE_YUV444;
+ hdmi->color_depth = HDMI_12_BIT;
+ break;
+ case YCBCR444_16bit:
+ hdmi->csp = HDMI_COLORSPACE_YUV444;
+ hdmi->color_depth = HDMI_16_BIT;
+ break;
+ case YCBCR422_12bit:
+ hdmi->csp = HDMI_COLORSPACE_YUV422;
+ hdmi->color_depth = HDMI_12_BIT;
+ break;
+ case YCBCR420_8bit:
+ hdmi->csp = HDMI_COLORSPACE_YUV420;
+ hdmi->color_depth = HDMI_8_BIT;
+ break;
+ case YCBCR420_10bit:
+ hdmi->csp = HDMI_COLORSPACE_YUV420;
+ hdmi->color_depth = HDMI_10_BIT;
+ break;
+ case YCBCR420_12bit:
+ hdmi->csp = HDMI_COLORSPACE_YUV420;
+ hdmi->color_depth = HDMI_12_BIT;
+ break;
+ case YCBCR420_16bit:
+ hdmi->csp = HDMI_COLORSPACE_YUV420;
+ hdmi->color_depth = HDMI_16_BIT;
+ break;
+ default:
+
+ hdmi->csp = HDMI_COLORSPACE_RGB;
+ hdmi->color_depth = HDMI_8_BIT;
+ }
+}
+
+static int mtk_hdmi_conn_get_modes(struct drm_connector *conn)
+{
+ struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn);
+ struct edid *edid;
+ int ret;
+
+ if (!hdmi->ddc_adpt)
+ return -ENODEV;
+
+ edid = drm_get_edid(conn, hdmi->ddc_adpt);
+ if (!edid)
+ return -ENODEV;
+
+ hdmi->dvi_mode = !drm_detect_hdmi_monitor(edid);
+
+ drm_connector_update_edid_property(conn, edid);
+
+ ret = drm_add_edid_modes(conn, edid);
+
+ kfree(edid);
+
+ return ret;
+}
+
+static int mtk_hdmi_conn_mode_valid(struct drm_connector *conn,
+ struct drm_display_mode *mode)
+{
+ if (mode->clock < 27000)
+ return MODE_CLOCK_LOW;
+ if (mode->clock > 594000)
+ return MODE_CLOCK_HIGH;
+
+ return drm_mode_validate_size(mode, 0x1fff, 0x1fff);
+}
+
+static struct drm_encoder *mtk_hdmi_conn_best_enc(struct drm_connector *conn)
+{
+ struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn);
+
+ return hdmi->bridge.encoder;
+}
+
+static const struct drm_connector_helper_funcs mtk_hdmi_connector_helper_funcs = {
+ .get_modes = mtk_hdmi_conn_get_modes,
+ .mode_valid = mtk_hdmi_conn_mode_valid,
+ .best_encoder = mtk_hdmi_conn_best_enc,
+};
+
+/*
+ * Bridge callbacks
+ */
+
+static int mtk_hdmi_bridge_attach(struct drm_bridge *bridge,
+ enum drm_bridge_attach_flags flags)
+{
+ struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+ int ret;
+
+ if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) {
+ DRM_ERROR("The flag DRM_BRIDGE_ATTACH_NO_CONNECTOR must be supplied\n");
+ return -EINVAL;
+ }
+ if (hdmi->next_bridge) {
+ ret = drm_bridge_attach(bridge->encoder, hdmi->next_bridge, bridge, flags);
+ if (ret)
+ return ret;
+ }
+
+ pm_runtime_enable(hdmi->dev);
+ mtk_hdmi_enable_disable(hdmi, true);
+
+ return 0;
+}
+
+static void mtk_hdmi_bridge_disable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_bridge_state)
+{
+ struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+
+ if (!hdmi->enabled)
+ return;
+
+ mtk_hdmi_hw_send_av_mute(hdmi);
+ usleep_range(50000, 50050);
+ mtk_hdmi_hw_vid_black(hdmi, true);
+ mtk_hdmi_disable_hdcp_encrypt(hdmi);
+ usleep_range(50000, 50050);
+
+ hdmi->enabled = false;
+}
+
+static void mtk_hdmi_bridge_post_disable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_state)
+{
+ struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+
+ if (!hdmi->powered)
+ return;
+
+ phy_power_off(hdmi->phy);
+
+ hdmi->powered = false;
+
+ mtk_hdmi_reset_colorspace_setting(hdmi);
+}
+
+static void mtk_hdmi_bridge_pre_enable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_state)
+{
+ struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+ union phy_configure_opts opts = {
+ .dp = { .link_rate = hdmi->mode.clock * 1000 }
+ };
+
+ mtk_hdmi_convert_colorspace_depth(hdmi);
+ mtk_hdmi_output_set_display_mode(hdmi, &hdmi->mode);
+ /* configuring phy clock link with appropriate rate */
+ phy_configure(hdmi->phy, &opts);
+ phy_power_on(hdmi->phy);
+ hdmi->powered = true;
+}
+
+static void mtk_hdmi_bridge_enable(struct drm_bridge *bridge,
+ struct drm_bridge_state *old_state)
+{
+ struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+ u8 buffer_spd[HDMI_INFOFRAME_SIZE(SPD)];
+ u8 buffer_avi[HDMI_INFOFRAME_SIZE(AVI)];
+
+ phy_power_on(hdmi->phy);
+ mtk_hdmi_send_infoframe(hdmi, buffer_spd, sizeof(buffer_spd),
+ buffer_avi, sizeof(buffer_avi), &hdmi->mode);
+ mtk_hdmi_hw_spd_infoframe(hdmi, buffer_spd, sizeof(buffer_spd));
+ mtk_hdmi_hw_avi_infoframe(hdmi, buffer_avi, sizeof(buffer_avi));
+
+ mtk_hdmi_hw_vid_black(hdmi, false);
+
+ hdmi->enabled = true;
+}
+
+static enum drm_connector_status mtk_hdmi_bridge_detect(struct drm_bridge *bridge)
+{
+ struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+
+ if (hdmi->hpd != HDMI_PLUG_IN_AND_SINK_POWER_ON &&
+ hdmi->hpd != HDMI_PLUG_IN_ONLY) {
+ hdmi->support_csp_depth = RGB444_8bit;
+ hdmi->set_csp_depth = RGB444_8bit;
+ hdmi->csp = HDMI_COLORSPACE_RGB;
+ hdmi->color_depth = HDMI_8_BIT;
+ hdmi->colorimtery = HDMI_COLORIMETRY_NONE;
+ hdmi->extended_colorimetry = HDMI_EXTENDED_COLORIMETRY_RESERVED;
+ hdmi->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
+ hdmi->ycc_quantization_range =
+ HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
+ }
+
+ return (hdmi->hpd != HDMI_PLUG_OUT) ? connector_status_connected :
+ connector_status_disconnected;
+}
+
+const struct drm_bridge_funcs mtk_mt8195_hdmi_bridge_funcs = {
+ .attach = mtk_hdmi_bridge_attach,
+ .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
+ .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
+ .atomic_reset = drm_atomic_helper_bridge_reset,
+ .mode_fixup = mtk_hdmi_bridge_mode_fixup,
+ .atomic_disable = mtk_hdmi_bridge_disable,
+ .atomic_post_disable = mtk_hdmi_bridge_post_disable,
+ .mode_set = mtk_hdmi_bridge_mode_set,
+ .atomic_pre_enable = mtk_hdmi_bridge_pre_enable,
+ .atomic_enable = mtk_hdmi_bridge_enable,
+ .get_edid = mtk_hdmi_bridge_get_edid,
+ .detect = mtk_hdmi_bridge_detect,
+};
diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h
new file mode 100644
index 000000000000..f59aea51dc74
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2022 MediaTek Inc.
+ * Copyright (c) 2022 BayLibre, SAS
+ */
+
+#ifndef _MTK_HDMI_MT8195_CTRL_H
+#define _MTK_HDMI_MT8195_CTRL_H
+
+#include <linux/hdmi.h>
+#include <drm/drm_bridge.h>
+
+struct mtk_hdmi;
+
+extern struct platform_driver mtk_hdmi_mt8195_ddc_driver;
+extern const struct drm_bridge_funcs mtk_mt8195_hdmi_bridge_funcs;
+void mtk_hdmi_output_init_mt8195(struct mtk_hdmi *hdmi);
+int mtk_hdmi_clk_enable_mt8195(struct mtk_hdmi *hdmi);
+void mtk_hdmi_clk_disable_mt8195(struct mtk_hdmi *hdmi);
+
+enum mtk_hdmi_clk_id_mt8195 {
+ MTK_MT8195_HDIM_HDCP_SEL,
+ MTK_MT8195_HDMI_HDCP_24M_SEL,
+ MTK_MT8195_HDMI_VPP_SPLIT_HDMI,
+ MTK_MT8195_HDMI_CLK_COUNT,
+};
+
+extern const char *const mtk_hdmi_clk_names_mt8195[MTK_MT8195_HDMI_CLK_COUNT];
+#endif /* _MTK_HDMI_MT8195_CTRL_H */
diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.c b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.c
new file mode 100644
index 000000000000..a6b734b215a9
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.c
@@ -0,0 +1,539 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Copyright (c) 2021 BayLibre, SAS
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/mfd/syscon.h>
+#include <linux/regmap.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/semaphore.h>
+#include <linux/clk.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+
+#include <drm/drm_edid.h>
+
+#include "mtk_mt8195_hdmi_regs.h"
+#include "mtk_mt8195_hdmi.h"
+
+#define EDID_ID 0x50
+#define DDC2_CLOK 572 /* BIM=208M/(v*4) = 90Khz */
+#define DDC2_CLOK_EDID 832 /* BIM=208M/(v*4) = 62.5Khz */
+
+struct mtk_hdmi_ddc {
+ /* Serialize read/write operations */
+ struct mutex mtx;
+ struct i2c_adapter adap;
+ struct clk *clk;
+ void __iomem *regs;
+};
+
+enum sif_bit_t_hdmi {
+ SIF_8_BIT_HDMI, /* /< [8 bits data address.] */
+ SIF_16_BIT_HDMI, /* /< [16 bits data address.] */
+};
+
+static inline unsigned int mtk_ddc_read(struct mtk_hdmi_ddc *ddc,
+ unsigned short reg, u32 *val)
+{
+ return regmap_read(ddc->regs, reg, val);
+}
+
+static inline void mtk_ddc_write(struct mtk_hdmi_ddc *ddc, unsigned short reg,
+ unsigned int val)
+{
+ regmap_write(ddc->regs, reg, val);
+}
+
+static inline void mtk_ddc_mask(struct mtk_hdmi_ddc *ddc, unsigned int reg,
+ unsigned int val, unsigned int mask)
+{
+ regmap_update_bits(ddc->regs, reg, mask, val);
+}
+
+static void hdmi_ddc_request(struct mtk_hdmi_ddc *ddc)
+{
+ mtk_ddc_mask(ddc, HDCP2X_POL_CTRL, HDCP2X_DIS_POLL_EN,
+ HDCP2X_DIS_POLL_EN);
+}
+
+static void DDC_WR_ONE(struct mtk_hdmi_ddc *ddc, unsigned int addr_id,
+ unsigned int offset_id, unsigned char wr_data)
+{
+ u32 val;
+
+ mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS, &val);
+
+ if (val & DDC_I2C_BUS_LOW) {
+ mtk_ddc_mask(ddc, DDC_CTRL, (CLOCK_SCL << DDC_CMD_SHIFT),
+ DDC_CMD);
+ usleep_range(250, 300);
+ }
+ mtk_ddc_mask(ddc, HPD_DDC_CTRL, DDC2_CLOK << DDC_DELAY_CNT_SHIFT,
+ DDC_DELAY_CNT);
+ mtk_ddc_write(ddc, SI2C_CTRL, SI2C_ADDR_READ << SI2C_ADDR_SHIFT);
+ mtk_ddc_mask(ddc, SI2C_CTRL, wr_data << SI2C_WDATA_SHIFT, SI2C_WDATA);
+ mtk_ddc_mask(ddc, SI2C_CTRL, SI2C_WR, SI2C_WR);
+
+ mtk_ddc_write(ddc, DDC_CTRL,
+ (SEQ_WRITE_REQ_ACK << DDC_CMD_SHIFT) +
+ (1 << DDC_DIN_CNT_SHIFT) +
+ (offset_id << DDC_OFFSET_SHIFT) + (addr_id << 1));
+
+ usleep_range(1000, 1250);
+ mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS, &val);
+
+ if ((val & DDC_I2C_NO_ACK) | DDC_I2C_BUS_LOW) {
+ mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS, &val);
+ if (val & DDC_I2C_BUS_LOW) {
+ mtk_ddc_mask(ddc, DDC_CTRL,
+ (CLOCK_SCL << DDC_CMD_SHIFT), DDC_CMD);
+ usleep_range(250, 300);
+ }
+ }
+}
+
+static unsigned char
+ddcm_read_hdmi(struct mtk_hdmi_ddc *ddc,
+ unsigned int u4_clk_div, unsigned char uc_dev, unsigned int u4_addr,
+ enum sif_bit_t_hdmi uc_addr_type, unsigned char *puc_value,
+ unsigned int u4_count)
+{
+ unsigned int i, temp_length, loop_counter, temp_ksvlist, device_n;
+ unsigned int uc_read_count, uc_idx;
+ unsigned long ddc_start_time, ddc_end_time, ddc_timeout;
+ u32 val;
+
+ if (!puc_value || !u4_count || !u4_clk_div)
+ return 0;
+
+ uc_idx = 0;
+ mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS, &val);
+ if (val & DDC_I2C_BUS_LOW) {
+ mtk_ddc_mask(ddc, DDC_CTRL, (CLOCK_SCL << DDC_CMD_SHIFT),
+ DDC_CMD);
+ usleep_range(250, 300);
+ }
+
+ mtk_ddc_mask(ddc, DDC_CTRL, (CLEAR_FIFO << DDC_CMD_SHIFT), DDC_CMD);
+
+ if (u4_addr == 0x43) {
+ mtk_ddc_write(ddc, DDC_CTRL,
+ (SEQ_READ_NO_ACK << DDC_CMD_SHIFT) +
+ (u4_count << DDC_DIN_CNT_SHIFT) +
+ (u4_addr << DDC_OFFSET_SHIFT) +
+ (uc_dev << 1));
+ usleep_range(700, 1000);
+
+ if (u4_count > 10)
+ temp_ksvlist = 10;
+ else
+ temp_ksvlist = u4_count;
+
+ for (uc_idx = 0; uc_idx < temp_ksvlist; uc_idx++) {
+ mtk_ddc_write(ddc, SI2C_CTRL,
+ (SI2C_ADDR_READ << SI2C_ADDR_SHIFT) +
+ SI2C_RD);
+ mtk_ddc_write(ddc, SI2C_CTRL,
+ (SI2C_ADDR_READ << SI2C_ADDR_SHIFT) +
+ SI2C_CONFIRM_READ);
+
+ mtk_ddc_read(ddc, HPD_DDC_STATUS, &val);
+ puc_value[uc_idx] = (val & DDC_DATA_OUT) >> DDC_DATA_OUT_SHIFT;
+ usleep_range(100, 150);
+ }
+
+ if (u4_count == temp_ksvlist)
+ return (uc_idx + 1);
+
+ usleep_range(500, 600);
+
+ if (u4_count / 5 == 3)
+ device_n = 5;
+ else
+ device_n = 10;
+
+ for (uc_idx = 10; uc_idx < (10 + device_n); uc_idx++) {
+ mtk_ddc_write(ddc, SI2C_CTRL,
+ (SI2C_ADDR_READ << SI2C_ADDR_SHIFT) +
+ SI2C_RD);
+ mtk_ddc_write(ddc, SI2C_CTRL,
+ (SI2C_ADDR_READ << SI2C_ADDR_SHIFT) +
+ SI2C_CONFIRM_READ);
+ mtk_ddc_read(ddc, HPD_DDC_STATUS, &val);
+ puc_value[uc_idx] = (val & DDC_DATA_OUT) >> DDC_DATA_OUT_SHIFT;
+ usleep_range(100, 150);
+ }
+
+ if (u4_count == (10 + device_n))
+ return (uc_idx + 1);
+
+ usleep_range(500, 700);
+
+ if (u4_count / 5 == 5)
+ device_n = 5;
+ else
+ device_n = 10;
+
+ for (uc_idx = 20; uc_idx < (20 + device_n); uc_idx++) {
+ mtk_ddc_write(ddc, SI2C_CTRL,
+ (SI2C_ADDR_READ << SI2C_ADDR_SHIFT) +
+ SI2C_RD);
+ mtk_ddc_write(ddc, SI2C_CTRL,
+ (SI2C_ADDR_READ << SI2C_ADDR_SHIFT) +
+ SI2C_CONFIRM_READ);
+ mtk_ddc_read(ddc, HPD_DDC_STATUS, &val);
+ puc_value[uc_idx] = (val & DDC_DATA_OUT) >> DDC_DATA_OUT_SHIFT;
+ usleep_range(100, 150);
+ }
+
+ if (u4_count == (20 + device_n))
+ return (uc_idx + 1);
+
+ usleep_range(500, 700);
+
+ if (u4_count / 5 == 7)
+ device_n = 5;
+ else
+ device_n = 10;
+
+ for (uc_idx = 30; uc_idx < (30 + device_n); uc_idx++) {
+ mtk_ddc_write(ddc, SI2C_CTRL,
+ (SI2C_ADDR_READ << SI2C_ADDR_SHIFT) +
+ SI2C_RD);
+ mtk_ddc_write(ddc, SI2C_CTRL,
+ (SI2C_ADDR_READ << SI2C_ADDR_SHIFT) +
+ SI2C_CONFIRM_READ);
+ mtk_ddc_read(ddc, HPD_DDC_STATUS, &val);
+ puc_value[uc_idx] = (val & DDC_DATA_OUT) >> DDC_DATA_OUT_SHIFT;
+ usleep_range(100, 150);
+ }
+
+ if (u4_count == (30 + device_n))
+ return (uc_idx + 1);
+
+ usleep_range(500, 700);
+
+ for (uc_idx = 40; uc_idx < (40 + 5); uc_idx++) {
+ mtk_ddc_write(ddc, SI2C_CTRL,
+ (SI2C_ADDR_READ << SI2C_ADDR_SHIFT) +
+ SI2C_RD);
+ mtk_ddc_write(ddc, SI2C_CTRL,
+ (SI2C_ADDR_READ << SI2C_ADDR_SHIFT) +
+ SI2C_CONFIRM_READ);
+
+ mtk_ddc_read(ddc, HPD_DDC_STATUS, &val);
+ puc_value[uc_idx] = (val & DDC_DATA_OUT) >> DDC_DATA_OUT_SHIFT;
+ usleep_range(100, 150);
+ }
+
+ if (u4_count == 45)
+ return (uc_idx + 1);
+ } else {
+ if (u4_count >= 16) {
+ temp_length = 16;
+ loop_counter =
+ u4_count / 16 + ((u4_count % 16 == 0) ? 0 : 1);
+ } else {
+ temp_length = u4_count;
+ loop_counter = 1;
+ }
+ if (uc_dev >= EDID_ID) {
+ if (u4_clk_div < DDC2_CLOK_EDID)
+ u4_clk_div = DDC2_CLOK_EDID;
+ }
+ mtk_ddc_mask(ddc, HPD_DDC_CTRL, u4_clk_div << DDC_DELAY_CNT_SHIFT,
+ DDC_DELAY_CNT);
+ for (i = 0; i < loop_counter; i++) {
+ if (i == (loop_counter - 1) && i != 0 &&
+ u4_count % 16)
+ temp_length = u4_count % 16;
+
+ if (uc_dev > EDID_ID) {
+ mtk_ddc_mask(ddc, SCDC_CTRL,
+ (uc_dev - EDID_ID) << DDC_SEGMENT_SHIFT, DDC_SEGMENT);
+ mtk_ddc_write(ddc, DDC_CTRL, (ENH_READ_NO_ACK << DDC_CMD_SHIFT) +
+ (temp_length << DDC_DIN_CNT_SHIFT) +
+ ((u4_addr + i * temp_length) << DDC_OFFSET_SHIFT) +
+ (EDID_ID << 1));
+ } else {
+ mtk_ddc_write(ddc, DDC_CTRL, (SEQ_READ_NO_ACK << DDC_CMD_SHIFT) +
+ (temp_length << DDC_DIN_CNT_SHIFT) +
+ ((u4_addr + ((u4_addr == 0x43) ? 0 : (i * 16)))
+ << DDC_OFFSET_SHIFT) +
+ (uc_dev << 1));
+ }
+ usleep_range(5000, 5500);
+ ddc_start_time = jiffies;
+ ddc_timeout = temp_length + 5;
+ ddc_end_time = ddc_start_time + ddc_timeout * HZ / 1000;
+ while (1) {
+ mtk_ddc_read(ddc, HPD_DDC_STATUS, &val);
+ if ((val & DDC_I2C_IN_PROG) == 0)
+ break;
+
+ if (time_after(jiffies, ddc_end_time)) {
+ pr_info("[HDMI][DDC] error: time out\n");
+ return 0;
+ }
+ usleep_range(1000, 1500);
+ }
+ mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS, &val);
+ if ((val & (DDC_I2C_NO_ACK | DDC_I2C_BUS_LOW))) {
+ mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS, &val);
+ if (val & DDC_I2C_BUS_LOW) {
+ mtk_ddc_mask(ddc, DDC_CTRL,
+ (CLOCK_SCL
+ << DDC_CMD_SHIFT),
+ DDC_CMD);
+ usleep_range(250, 300);
+ }
+ return 0;
+ }
+ for (uc_idx = 0; uc_idx < temp_length; uc_idx++) {
+ mtk_ddc_write(ddc, SI2C_CTRL,
+ (SI2C_ADDR_READ
+ << SI2C_ADDR_SHIFT) +
+ SI2C_RD);
+ mtk_ddc_write(ddc, SI2C_CTRL,
+ (SI2C_ADDR_READ
+ << SI2C_ADDR_SHIFT) +
+ SI2C_CONFIRM_READ);
+
+ mtk_ddc_read(ddc, HPD_DDC_STATUS, &val);
+ puc_value[i * 16 + uc_idx] = (val & DDC_DATA_OUT)
+ >> DDC_DATA_OUT_SHIFT;
+ /*
+ * when reading edid, if hdmi module been reset,
+ * ddc will fail and it's
+ *speed will be set to 400.
+ */
+ mtk_ddc_read(ddc, HPD_DDC_CTRL, &val);
+ if (((val >> 16) & 0xFFFF) < DDC2_CLOK)
+ return 0;
+
+ uc_read_count = i * 16 + uc_idx + 1;
+ }
+ }
+ return uc_read_count;
+ }
+ return 0;
+}
+
+static unsigned char vddc_read(struct mtk_hdmi_ddc *ddc, unsigned int u4_clk_div,
+ unsigned char uc_dev, unsigned int u4_addr,
+ enum sif_bit_t_hdmi uc_addr_type,
+ unsigned char *puc_value, unsigned int u4_count)
+{
+ unsigned int u4_read_count = 0;
+ unsigned char uc_return_value = 0;
+
+ if (!puc_value || !u4_count || !u4_clk_div ||
+ uc_addr_type > SIF_16_BIT_HDMI ||
+ (uc_addr_type == SIF_8_BIT_HDMI && u4_addr > 255) ||
+ (uc_addr_type == SIF_16_BIT_HDMI && u4_addr > 65535)) {
+ return 0;
+ }
+
+ if (uc_addr_type == SIF_8_BIT_HDMI)
+ u4_read_count = 255 - u4_addr + 1;
+ else if (uc_addr_type == SIF_16_BIT_HDMI)
+ u4_read_count = 65535 - u4_addr + 1;
+
+ u4_read_count = (u4_read_count > u4_count) ? u4_count : u4_read_count;
+ uc_return_value = ddcm_read_hdmi(ddc, u4_clk_div, uc_dev, u4_addr,
+ uc_addr_type, puc_value, u4_read_count);
+ return uc_return_value;
+}
+
+static unsigned char fg_ddc_data_read(struct mtk_hdmi_ddc *ddc,
+ unsigned char b_dev,
+ unsigned char b_data_addr,
+ unsigned char b_data_count,
+ unsigned char *pr_data)
+{
+ bool flag;
+
+ mutex_lock(&ddc->mtx);
+
+ hdmi_ddc_request(ddc);
+ if (vddc_read(ddc, DDC2_CLOK, (unsigned char)b_dev,
+ (unsigned int)b_data_addr, SIF_8_BIT_HDMI,
+ (unsigned char *)pr_data,
+ (unsigned int)b_data_count) == b_data_count) {
+ flag = true;
+ } else {
+ flag = false;
+ }
+
+ mutex_unlock(&ddc->mtx);
+ return flag;
+}
+
+static unsigned char fg_ddc_data_write(struct mtk_hdmi_ddc *ddc,
+ unsigned char b_dev,
+ unsigned char b_data_addr,
+ unsigned char b_data_count,
+ unsigned char *pr_data)
+{
+ unsigned int i;
+
+ mutex_lock(&ddc->mtx);
+
+ hdmi_ddc_request(ddc);
+ for (i = 0; i < b_data_count; i++)
+ DDC_WR_ONE(ddc, b_dev, b_data_addr + i, *(pr_data + i));
+
+ mutex_unlock(&ddc->mtx);
+ return 1;
+}
+
+static int mtk_hdmi_ddc_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs,
+ int num)
+{
+ struct mtk_hdmi_ddc *ddc = adapter->algo_data;
+ struct device *dev = adapter->dev.parent;
+ int ret;
+ int i;
+ unsigned char offset;
+
+ if (!ddc)
+ return -EINVAL;
+
+ for (i = 0; i < num; i++) {
+ struct i2c_msg *msg = &msgs[i];
+
+ if (msg->flags & I2C_M_RD) {
+ /* The underlying DDC hardware always issue a write request
+ * that assigns the read offset as part of the read operation.
+ * Therefore we need to use the offset value assigned
+ * in the previous write request from the drm_edid.c
+ */
+ ret = fg_ddc_data_read(ddc, msg->addr,
+ offset, /* determined by previous write requests */
+ (msg->len), &msg->buf[0]);
+ } else {
+ ret = fg_ddc_data_write(ddc, msg->addr, msg->buf[0],
+ (msg->len - 1), &msg->buf[1]);
+
+ /* we store the offset value requested by drm_edid framework
+ * to use in subsequent read requests.
+ */
+ if (DDC_ADDR == msg->addr && 1 == msg->len)
+ offset = msg->buf[0];
+ }
+
+ if (ret <= 0)
+ goto xfer_end;
+ }
+
+ return i;
+
+xfer_end:
+ dev_err(dev, "ddc failed! : %d\n", ret);
+ return ret;
+}
+
+static u32 mtk_hdmi_ddc_func(struct i2c_adapter *adapter)
+{
+ return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm mtk_hdmi_ddc_algorithm = {
+ .master_xfer = mtk_hdmi_ddc_xfer,
+ .functionality = mtk_hdmi_ddc_func,
+};
+
+static int mtk_hdmi_ddc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct mtk_hdmi_ddc *ddc;
+ int ret;
+
+ ddc = devm_kzalloc(dev, sizeof(struct mtk_hdmi_ddc), GFP_KERNEL);
+ if (!ddc)
+ return -ENOMEM;
+
+ ddc->regs = syscon_regmap_lookup_by_compatible("mediatek,mt8195-hdmi");
+ if (IS_ERR(ddc->regs))
+ return dev_err_probe(dev, PTR_ERR(ddc->regs), "Unable to get mt8195-hdmi syscon");
+
+ ddc->clk = devm_clk_get(dev, "ddc-i2c");
+ if (IS_ERR(ddc->clk)) {
+ dev_err(dev, "get ddc_clk failed: %p ,\n", ddc->clk);
+ return PTR_ERR(ddc->clk);
+ }
+ ret = clk_prepare_enable(ddc->clk);
+ if (ret) {
+ dev_err(dev, "enable ddc clk failed!\n");
+ return ret;
+ }
+
+ mutex_init(&ddc->mtx);
+
+ strscpy(ddc->adap.name, "mediatek-hdmi-ddc", sizeof(ddc->adap.name));
+ ddc->adap.owner = THIS_MODULE;
+ ddc->adap.class = I2C_CLASS_DDC;
+ ddc->adap.algo = &mtk_hdmi_ddc_algorithm;
+ ddc->adap.retries = 3;
+ ddc->adap.dev.of_node = dev->of_node;
+ ddc->adap.algo_data = ddc;
+ ddc->adap.dev.parent = &pdev->dev;
+
+ ret = i2c_add_adapter(&ddc->adap);
+ if (ret < 0) {
+ dev_err(dev, "failed to add bus to i2c core\n");
+ goto err_clk_disable;
+ }
+
+ platform_set_drvdata(pdev, ddc);
+ return 0;
+
+err_clk_disable:
+ clk_disable_unprepare(ddc->clk);
+ return ret;
+}
+
+static int mtk_hdmi_ddc_remove(struct platform_device *pdev)
+{
+ struct mtk_hdmi_ddc *ddc = platform_get_drvdata(pdev);
+
+ mutex_destroy(&ddc->mtx);
+ i2c_del_adapter(&ddc->adap);
+ clk_disable_unprepare(ddc->clk);
+
+ return 0;
+}
+
+static const struct of_device_id mtk_hdmi_ddc_match[] = {
+ {
+ .compatible = "mediatek,mt8195-hdmi-ddc",
+ },
+ {},
+};
+
+struct platform_driver mtk_hdmi_mt8195_ddc_driver = {
+ .probe = mtk_hdmi_ddc_probe,
+ .remove = mtk_hdmi_ddc_remove,
+ .driver = {
+ .name = "mediatek-hdmi-mt8195-ddc",
+ .of_match_table = mtk_hdmi_ddc_match,
+ },
+};
+
+MODULE_AUTHOR("Can Zeng <[email protected]>");
+MODULE_DESCRIPTION("MediaTek HDMI DDC Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_regs.h b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_regs.h
new file mode 100644
index 000000000000..66fc388bc7a9
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_regs.h
@@ -0,0 +1,329 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Copyright (c) 2021 BayLibre, SAS
+ */
+
+#ifndef _MTK_HDMI_REGS_H
+#define _MTK_HDMI_REGS_H
+
+#define AIF_HEADER GENMASK(19, 0)
+#define AIF_PKT00 GENMASK(31, 0)
+#define AIF_PKT01 (23, 0)
+#define AIF_PKT02 (31, 0)
+#define AIF_PKT03 (23, 0)
+
+#define AIP_CTRL BIT(10)
+#define AIP_CTS_SVAL 0x408
+#define AIP_DOWNSAMPLE_CTRL 0x41C
+#define AIP_I2S_CHST0 0x414
+#define AIP_I2S_CHST1 0x418
+#define AIP_I2S_CTRL 0x410
+#define AIP_N_VAL 0x404
+#define AIP_SPDIF_CTRL 0x40C
+#define AIP_TPI_CTRL 0x428
+#define AIP_TXCTRL 0x424
+
+#define AUD_DIS (0x0)
+#define AUD_DIS_WR (0x0)
+#define AUD_EN BIT(2)
+#define AUD_EN_WR BIT(18)
+#define AUD_ERR_THRESH GENMASK(29, 24)
+#define AUD_ERR_THRESH_SHIFT 24
+#define AUD_IN_EN BIT(8)
+#define AUD_IN_EN_SHIFT 8
+#define AUD_MUTE_DIS (0x0)
+#define AUD_MUTE_FIFO_EN BIT(5)
+#define AUD_PACKET_DROP BIT(6)
+#define AUD_RPT_DIS (0x0)
+#define AUD_RPT_EN BIT(2)
+#define AUD_SEL_OWRT BIT(9)
+
+#define AVI_DIS (0)
+#define AVI_DIS_WR (0)
+#define AVI_EN (0x1)
+#define AVI_EN_WR BIT(16)
+#define AVI_HEADER GENMASK(23, 0)
+#define AVI_PKT00 GENMASK(31, 0)
+#define AVI_PKT01 GENMASK(23, 0)
+#define AVI_PKT02 GENMASK(31, 0)
+#define AVI_PKT03 GENMASK(23, 0)
+#define AVI_PKT04 GENMASK(31, 0)
+#define AVI_PKT05 GENMASK(23, 0)
+#define AVI_RPT_DIS (0x0)
+#define AVI_RPT_EN (0x1)
+
+#define C422_C420_CONFIG_BYPASS BIT(5)
+#define C422_C420_CONFIG_ENABLE BIT(4)
+#define C422_C420_CONFIG_OUT_CB_OR_CR BIT(6)
+#define C444_C422_CONFIG_ENABLE (0x1)
+
+#define CBIT_ORDER_SAME BIT(13)
+
+#define CEA_AUD_EN BIT(9)
+#define CEA_AVI_EN BIT(11)
+#define CEA_CP_EN BIT(6)
+#define CEA_SPD_EN BIT(10)
+
+#define CLEAR_FIFO 0x9
+
+#define CLOCK_SCL 0xA
+
+#define CP_CLR_MUTE_EN BIT(1)
+#define CP_EN BIT(5)
+#define CP_EN_WR BIT(21)
+#define CP_RPT_EN BIT(5)
+#define CP_SET_MUTE_DIS (0)
+#define CP_SET_MUTE_EN (1)
+
+#define CTS_CAL_N4 BIT(23)
+#define CTS_REQ_EN BIT(1)
+#define CTS_SW_SEL (1)
+
+#define C_SD0 (0x0)
+#define C_SD1 BIT(4)
+#define C_SD2 BIT(9)
+#define C_SD3 GENMASK(14, 12)
+#define C_SD4 BIT(19)
+#define C_SD5 (0x5 << 20)
+#define C_SD6 GENMASK(26, 25)
+#define C_SD7 GENMASK(30, 28)
+
+#define DATA_DIR_LSB BIT(9)
+#define DATA_DIR_MSB (0)
+
+#define DDC_CMD GENMASK(31, 28)
+#define DDC_CMD_SHIFT (28)
+#define DDC_CTRL 0xC10
+#define DDC_DATA_OUT GENMASK(23, 16)
+#define DDC_DATA_OUT_CNT GENMASK(12, 8)
+#define DDC_DATA_OUT_SHIFT (16)
+#define DDC_DELAY_CNT GENMASK(31, 16)
+#define DDC_DELAY_CNT_SHIFT (16)
+#define DDC_DIN_CNT (25, 16)
+#define DDC_DIN_CNT_SHIFT (16)
+#define DDC_I2C_BUS_LOW BIT(11)
+#define DDC_I2C_IN_PROG BIT(13)
+#define DDC_I2C_IN_PROG_INT_CLR BIT(29)
+#define DDC_I2C_IN_PROG_INT_MASK (0)
+#define DDC_I2C_IN_PROG_INT_STA BIT(1)
+#define DDC_I2C_IN_PROG_INT_UNCLR (0)
+#define DDC_I2C_IN_PROG_INT_UNMASK BIT(29)
+#define DDC_I2C_NO_ACK BIT(10)
+#define DDC_OFFSET GENMASK(15, 8)
+#define DDC_OFFSET_SHIFT (8)
+#define DDC_SEGMENT GENMASK(15, 8)
+#define DDC_SEGMENT_SHIFT (8)
+
+#define DEEPCOLOR_MODE_10BIT BIT(8)
+#define DEEPCOLOR_MODE_12BIT GENMASK(9, 8)
+#define DEEPCOLOR_MODE_16BIT GENMASK(10, 8)
+#define DEEPCOLOR_MODE_8BIT (0)
+#define DEEPCOLOR_MODE_MASKBIT GENMASK(10, 8)
+#define DEEPCOLOR_PAT_EN BIT(12)
+#define DEEP_COLOR_ADD BIT(4)
+
+#define DOWNSAMPLE 0x2
+
+#define DSD_EN BIT(15)
+#define DSD_MUTE_DATA BIT(7)
+
+#define ENH_READ_NO_ACK 0x4
+
+#define FIFO0_MAP GENMASK(1, 0)
+#define FIFO1_MAP GENMASK(3, 2)
+#define FIFO2_MAP GENMASK(5, 4)
+#define FIFO3_MAP GENMASK(7, 6)
+
+#define FS_OVERRIDE_WRITE BIT(1)
+#define FS_UNOVERRIDE (0)
+
+#define HBRA_ON BIT(14)
+
+#define HBR_FROM_SPDIF BIT(20)
+
+#define HDCP1X_CTRL 0xCD0
+#define HDCP1X_ENC_EN BIT(6)
+#define HDCP1X_ENC_EN_SHIFT (6)
+#define HDCP2X_CTRL_0 0xC20
+#define HDCP2X_DDCM_STATUS 0xC68
+#define HDCP2X_DIS_POLL_EN BIT(16)
+#define HDCP2X_EN (0x1)
+#define HDCP2X_ENCRYPTING_ON BIT(10)
+#define HDCP2X_ENCRYPT_EN BIT(7)
+#define HDCP2X_ENCRYPT_EN_SHIFT (7)
+#define HDCP2X_HPD_OVR BIT(10)
+#define HDCP2X_HPD_SW BIT(11)
+#define HDCP2X_POL_CTRL 0xC54
+#define HDCP2X_RX_REAUTH_REQ_DDCM_INT_MASK (0)
+#define HDCP2X_RX_REAUTH_REQ_DDCM_INT_UNMASK BIT(25)
+#define HDCP_ENABLE (0)
+#define HDCP_ENCRYPTING_ON BIT(26)
+#define HDCP_TOP_CTRL 0xC00
+
+#define HDMI2_OFF (0)
+#define HDMI2_ON BIT(2)
+
+#define HDMITX_CONFIG 0x900
+#define HDMITX_SW_HPD BIT(29)
+#define HDMITX_SW_HPD_SHIFT (29)
+#define HDMITX_SW_RSTB BIT(31)
+#define HDMITX_SW_RSTB_SHIFT (31)
+
+#define HDMI_MODE_DVI (0)
+#define HDMI_MODE_HDMI BIT(3)
+
+#define HDMI_YUV420_MODE BIT(10)
+#define HDMI_YUV420_MODE_SHIFT (10)
+
+#define HPD_DDC_CTRL 0xC08
+#define HPD_DDC_STATUS 0xC60
+
+#define HPD_PIN_STA BIT(4)
+#define HPD_STATE (0x3)
+#define HPD_STATE_CONNECTED (2)
+#define HPD_STATE_DISCONNECTED (0)
+#define HPD_STATE_SHIFT (0)
+
+#define HTPLG_F_INT_STA BIT(1)
+#define HTPLG_R_INT_STA BIT(0)
+
+#define I2S2DSD_EN BIT(30)
+#define I2S_1ST_BIT_NOSHIFT BIT(8)
+#define I2S_EN GENMASK(19, 16)
+#define I2S_EN_SHIFT 16
+
+#define JUSTIFY_RIGHT BIT(10)
+
+#define LAYOUT BIT(18)
+#define LAYOUT0 0
+#define LAYOUT1 BIT(4)
+
+#define LFE_CC_SWAP BIT(1)
+
+#define MAP_SD0 0x0
+#define MAP_SD1 0x1
+#define MAP_SD2 0x2
+#define MAP_SD3 0x3
+
+#define MAX_1UI_WRITE GENMASK(15, 8)
+#define MAX_1UI_WRITE_SHIFT 8
+#define MAX_2UI_WRITE GENMASK(23, 16)
+#define MAX_2UI_WRITE_SHIFT 16
+
+#define MCLK_1152FS 0x6
+#define MCLK_128FS 0x0
+#define MCLK_192FS 0x7
+#define MCLK_256FS 0x1
+#define MCLK_384FS 0x2
+#define MCLK_512FS 0x3
+#define MCLK_768FS 0x4
+#define MCLK_CTSGEN_SEL 0
+#define MCLK_EN BIT(2)
+#define NO_MCLK_CTSGEN_SEL BIT(3)
+
+#define NULL_PKT_EN BIT(2)
+#define NULL_PKT_VSYNC_HIGH_EN BIT(3)
+
+#define OUTPUT_FORMAT_DEMUX_420_ENABLE BIT(10)
+
+#define PORD_F_INT_STA BIT(3)
+#define PORD_PIN_STA BIT(5)
+#define PORD_R_INT_STA BIT(2)
+
+#define REG_VMUTE_EN BIT(16)
+#define RST4AUDIO BIT(0)
+#define RST4AUDIO_ACR BIT(2)
+#define RST4AUDIO_FIFO BIT(1)
+
+#define SCDC_CTRL 0xC18
+
+#define SCK_EDGE_RISE BIT(14)
+
+#define SCR_OFF 0
+#define SCR_ON BIT(4)
+
+#define SEQ_READ_NO_ACK 0x2
+#define SEQ_WRITE_REQ_ACK 0x7
+
+#define SI2C_ADDR GENMASK(23, 16)
+#define SI2C_ADDR_READ (0xF4)
+#define SI2C_ADDR_SHIFT (16)
+#define SI2C_CONFIRM_READ BIT(2)
+#define SI2C_CTRL 0xCAC
+#define SI2C_RD BIT(1)
+#define SI2C_WDATA GENMASK(15, 8)
+#define SI2C_WDATA_SHIFT (8)
+#define SI2C_WR BIT(0)
+
+#define SPDIF_EN BIT(13)
+#define SPDIF_EN_SHIFT 13
+#define SPDIF_HEADER GENMASK(23, 0)
+#define SPDIF_INTERNAL_MODULE BIT(24)
+#define SPDIF_PKT00 GENMASK(31, 0)
+#define SPDIF_PKT01 GENMASK(23, 0)
+#define SPDIF_PKT02 GENMASK(31, 0)
+#define SPDIF_PKT03 GENMASK(23, 0)
+#define SPDIF_PKT04 GENMASK(31, 0)
+#define SPDIF_PKT05 GENMASK(23, 0)
+#define SPDIF_PKT06 GENMASK(31, 0)
+#define SPDIF_PKT07 GENMASK(23, 0)
+
+#define SPD_DIS 0
+#define SPD_DIS_WR 0
+#define SPD_EN BIT(1)
+#define SPD_EN_WR BIT(17)
+#define SPD_RPT_DIS 0
+#define SPD_RPT_EN BIT(1)
+
+#define TOP_AIF_HEADER 0x040
+#define TOP_AIF_PKT00 0x044
+#define TOP_AIF_PKT01 0x048
+#define TOP_AIF_PKT02 0x04C
+#define TOP_AIF_PKT03 0x050
+#define TOP_AUD_MAP 0x00C
+#define TOP_AVI_HEADER 0x024
+#define TOP_AVI_PKT00 0x028
+#define TOP_AVI_PKT01 0x02C
+#define TOP_AVI_PKT02 0x030
+#define TOP_AVI_PKT03 0x034
+#define TOP_AVI_PKT04 0x038
+#define TOP_AVI_PKT05 0x03C
+#define TOP_CFG00 0x000
+#define TOP_CFG01 0x004
+#define TOP_INFO_EN 0x01C
+#define TOP_INFO_EN_EXPAND 0x368
+#define TOP_INFO_RPT 0x020
+#define TOP_INT_CLR00 0x1B8
+#define TOP_INT_CLR01 0x1BC
+#define TOP_INT_MASK00 0x1B0
+#define TOP_INT_MASK01 0x1B4
+#define TOP_INT_STA00 0x1A8
+#define TOP_MISC_CTLR 0x1A4
+#define TOP_SPDIF_HEADER 0x054
+#define TOP_SPDIF_PKT00 0x058
+#define TOP_SPDIF_PKT01 0x05C
+#define TOP_SPDIF_PKT02 0x060
+#define TOP_SPDIF_PKT03 0x064
+#define TOP_SPDIF_PKT04 0x068
+#define TOP_SPDIF_PKT05 0x06C
+#define TOP_SPDIF_PKT06 0x070
+#define TOP_SPDIF_PKT07 0x074
+#define TOP_VMUTE_CFG1 0x1C8
+
+#define TPI_AUDIO_LOOKUP_DIS 0
+#define TPI_AUDIO_LOOKUP_EN BIT(2)
+
+#define VBIT_COM BIT(12)
+#define VBIT_PCM 0
+
+#define VID_DOWNSAMPLE_CONFIG 0x8F0
+#define VID_OUT_FORMAT 0x8FC
+
+#define WR_1UI_LOCK BIT(0)
+#define WR_1UI_UNLOCK 0
+#define WR_2UI_LOCK BIT(2)
+#define WR_2UI_UNLOCK 0
+#define WS_HIGH BIT(11)
+
+#endif /* _MTK_HDMI_REGS_H */

--
b4 0.10.0-dev

2022-09-19 17:35:52

[permalink] [raw]

Subject: [PATCH v1 07/17] drm/mediatek: extract common functions from the mtk hdmi driver

Create a common "framework" that can be used to add support for
different hdmi IPs within the mediatek range of products.

Signed-off-by: Guillaume Ranquet <[email protected]>

diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile
index d4d193f60271..008ec69da67b 100644
--- a/drivers/gpu/drm/mediatek/Makefile
+++ b/drivers/gpu/drm/mediatek/Makefile
@@ -22,7 +22,8 @@ obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o

mediatek-drm-hdmi-objs := mtk_cec.o \
mtk_hdmi.o \
- mtk_hdmi_ddc.o
+ mtk_hdmi_ddc.o \
+ mtk_hdmi_common.o \

obj-$(CONFIG_DRM_MEDIATEK_HDMI) += mediatek-drm-hdmi.o

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index 5cd05d4fe1a9..837d36ec4d64 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -32,187 +32,18 @@
#include <drm/drm_probe_helper.h>

#include "mtk_cec.h"
-#include "mtk_hdmi.h"
#include "mtk_hdmi_regs.h"
+#include "mtk_hdmi_common.h"

#define NCTS_BYTES 7

-enum mtk_hdmi_clk_id {
- MTK_HDMI_CLK_HDMI_PIXEL,
- MTK_HDMI_CLK_HDMI_PLL,
- MTK_HDMI_CLK_AUD_BCLK,
- MTK_HDMI_CLK_AUD_SPDIF,
- MTK_HDMI_CLK_COUNT
+const char * const mtk_hdmi_clk_names_mt8183[MTK_MT8183_HDMI_CLK_COUNT] = {
+ [MTK_MT8183_HDMI_CLK_HDMI_PIXEL] = "pixel",
+ [MTK_MT8183_HDMI_CLK_HDMI_PLL] = "pll",
+ [MTK_MT8183_HDMI_CLK_AUD_BCLK] = "bclk",
+ [MTK_MT8183_HDMI_CLK_AUD_SPDIF] = "spdif",
};

-enum hdmi_aud_input_type {
- HDMI_AUD_INPUT_I2S = 0,
- HDMI_AUD_INPUT_SPDIF,
-};
-
-enum hdmi_aud_i2s_fmt {
- HDMI_I2S_MODE_RJT_24BIT = 0,
- HDMI_I2S_MODE_RJT_16BIT,
- HDMI_I2S_MODE_LJT_24BIT,
- HDMI_I2S_MODE_LJT_16BIT,
- HDMI_I2S_MODE_I2S_24BIT,
- HDMI_I2S_MODE_I2S_16BIT
-};
-
-enum hdmi_aud_mclk {
- HDMI_AUD_MCLK_128FS,
- HDMI_AUD_MCLK_192FS,
- HDMI_AUD_MCLK_256FS,
- HDMI_AUD_MCLK_384FS,
- HDMI_AUD_MCLK_512FS,
- HDMI_AUD_MCLK_768FS,
- HDMI_AUD_MCLK_1152FS,
-};
-
-enum hdmi_aud_channel_type {
- HDMI_AUD_CHAN_TYPE_1_0 = 0,
- HDMI_AUD_CHAN_TYPE_1_1,
- HDMI_AUD_CHAN_TYPE_2_0,
- HDMI_AUD_CHAN_TYPE_2_1,
- HDMI_AUD_CHAN_TYPE_3_0,
- HDMI_AUD_CHAN_TYPE_3_1,
- HDMI_AUD_CHAN_TYPE_4_0,
- HDMI_AUD_CHAN_TYPE_4_1,
- HDMI_AUD_CHAN_TYPE_5_0,
- HDMI_AUD_CHAN_TYPE_5_1,
- HDMI_AUD_CHAN_TYPE_6_0,
- HDMI_AUD_CHAN_TYPE_6_1,
- HDMI_AUD_CHAN_TYPE_7_0,
- HDMI_AUD_CHAN_TYPE_7_1,
- HDMI_AUD_CHAN_TYPE_3_0_LRS,
- HDMI_AUD_CHAN_TYPE_3_1_LRS,
- HDMI_AUD_CHAN_TYPE_4_0_CLRS,
- HDMI_AUD_CHAN_TYPE_4_1_CLRS,
- HDMI_AUD_CHAN_TYPE_6_1_CS,
- HDMI_AUD_CHAN_TYPE_6_1_CH,
- HDMI_AUD_CHAN_TYPE_6_1_OH,
- HDMI_AUD_CHAN_TYPE_6_1_CHR,
- HDMI_AUD_CHAN_TYPE_7_1_LH_RH,
- HDMI_AUD_CHAN_TYPE_7_1_LSR_RSR,
- HDMI_AUD_CHAN_TYPE_7_1_LC_RC,
- HDMI_AUD_CHAN_TYPE_7_1_LW_RW,
- HDMI_AUD_CHAN_TYPE_7_1_LSD_RSD,
- HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS,
- HDMI_AUD_CHAN_TYPE_7_1_LHS_RHS,
- HDMI_AUD_CHAN_TYPE_7_1_CS_CH,
- HDMI_AUD_CHAN_TYPE_7_1_CS_OH,
- HDMI_AUD_CHAN_TYPE_7_1_CS_CHR,
- HDMI_AUD_CHAN_TYPE_7_1_CH_OH,
- HDMI_AUD_CHAN_TYPE_7_1_CH_CHR,
- HDMI_AUD_CHAN_TYPE_7_1_OH_CHR,
- HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS_LSR_RSR,
- HDMI_AUD_CHAN_TYPE_6_0_CS,
- HDMI_AUD_CHAN_TYPE_6_0_CH,
- HDMI_AUD_CHAN_TYPE_6_0_OH,
- HDMI_AUD_CHAN_TYPE_6_0_CHR,
- HDMI_AUD_CHAN_TYPE_7_0_LH_RH,
- HDMI_AUD_CHAN_TYPE_7_0_LSR_RSR,
- HDMI_AUD_CHAN_TYPE_7_0_LC_RC,
- HDMI_AUD_CHAN_TYPE_7_0_LW_RW,
- HDMI_AUD_CHAN_TYPE_7_0_LSD_RSD,
- HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS,
- HDMI_AUD_CHAN_TYPE_7_0_LHS_RHS,
- HDMI_AUD_CHAN_TYPE_7_0_CS_CH,
- HDMI_AUD_CHAN_TYPE_7_0_CS_OH,
- HDMI_AUD_CHAN_TYPE_7_0_CS_CHR,
- HDMI_AUD_CHAN_TYPE_7_0_CH_OH,
- HDMI_AUD_CHAN_TYPE_7_0_CH_CHR,
- HDMI_AUD_CHAN_TYPE_7_0_OH_CHR,
- HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS_LSR_RSR,
- HDMI_AUD_CHAN_TYPE_8_0_LH_RH_CS,
- HDMI_AUD_CHAN_TYPE_UNKNOWN = 0xFF
-};
-
-enum hdmi_aud_channel_swap_type {
- HDMI_AUD_SWAP_LR,
- HDMI_AUD_SWAP_LFE_CC,
- HDMI_AUD_SWAP_LSRS,
- HDMI_AUD_SWAP_RLS_RRS,
- HDMI_AUD_SWAP_LR_STATUS,
-};
-
-struct hdmi_audio_param {
- enum hdmi_audio_coding_type aud_codec;
- enum hdmi_audio_sample_size aud_sampe_size;
- enum hdmi_aud_input_type aud_input_type;
- enum hdmi_aud_i2s_fmt aud_i2s_fmt;
- enum hdmi_aud_mclk aud_mclk;
- enum hdmi_aud_channel_type aud_input_chan_type;
- struct hdmi_codec_params codec_params;
-};
-
-struct mtk_hdmi_conf {
- bool tz_disabled;
- bool cea_modes_only;
- unsigned long max_mode_clock;
-};
-
-struct mtk_hdmi {
- struct drm_bridge bridge;
- struct drm_bridge *next_bridge;
- struct drm_connector *curr_conn;/* current connector (only valid when 'enabled') */
- struct device *dev;
- const struct mtk_hdmi_conf *conf;
- struct phy *phy;
- struct device *cec_dev;
- struct i2c_adapter *ddc_adpt;
- struct clk *clk[MTK_HDMI_CLK_COUNT];
- struct drm_display_mode mode;
- bool dvi_mode;
- u32 min_clock;
- u32 max_clock;
- u32 max_hdisplay;
- u32 max_vdisplay;
- u32 ibias;
- u32 ibias_up;
- struct regmap *sys_regmap;
- unsigned int sys_offset;
- struct regmap *regs;
- enum hdmi_colorspace csp;
- struct hdmi_audio_param aud_param;
- bool audio_enable;
- bool powered;
- bool enabled;
- hdmi_codec_plugged_cb plugged_cb;
- struct device *codec_dev;
- struct mutex update_plugged_status_lock;
-};
-
-static inline struct mtk_hdmi *hdmi_ctx_from_bridge(struct drm_bridge *b)
-{
- return container_of(b, struct mtk_hdmi, bridge);
-}
-
-static int mtk_hdmi_read(struct mtk_hdmi *hdmi, u32 offset, u32 *val)
-{
- return regmap_read(hdmi->regs, offset, val);
-}
-
-static void mtk_hdmi_write(struct mtk_hdmi *hdmi, u32 offset, u32 val)
-{
- regmap_write(hdmi->regs, offset, val);
-}
-
-static void mtk_hdmi_clear_bits(struct mtk_hdmi *hdmi, u32 offset, u32 bits)
-{
- regmap_clear_bits(hdmi->regs, offset, bits);
-}
-
-static void mtk_hdmi_set_bits(struct mtk_hdmi *hdmi, u32 offset, u32 bits)
-{
- regmap_set_bits(hdmi->regs, offset, bits);
-}
-
-static void mtk_hdmi_mask(struct mtk_hdmi *hdmi, u32 offset, u32 val, u32 mask)
-{
- regmap_update_bits(hdmi->regs, offset, mask, val);
-}
-
static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black)
{
mtk_hdmi_mask(hdmi, VIDEO_CFG_4, black ? GEN_RGB : NORMAL_PATH,
@@ -825,14 +656,14 @@ static int mtk_hdmi_video_change_vpll(struct mtk_hdmi *hdmi, u32 clock)
int ret;

/* The DPI driver already should have set TVDPLL to the correct rate */
- ret = clk_set_rate(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL], clock);
+ ret = clk_set_rate(hdmi->clk[MTK_MT8183_HDMI_CLK_HDMI_PLL], clock);
if (ret) {
dev_err(hdmi->dev, "Failed to set PLL to %u Hz: %d\n", clock,
ret);
return ret;
}

- rate = clk_get_rate(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL]);
+ rate = clk_get_rate(hdmi->clk[MTK_MT8183_HDMI_CLK_HDMI_PLL]);

if (DIV_ROUND_CLOSEST(rate, 1000) != DIV_ROUND_CLOSEST(clock, 1000))
dev_warn(hdmi->dev, "Want PLL %u Hz, got %lu Hz\n", clock,
@@ -857,7 +688,6 @@ static void mtk_hdmi_video_set_display_mode(struct mtk_hdmi *hdmi,
mtk_hdmi_hw_msic_setting(hdmi, mode);
}

-
static void mtk_hdmi_aud_set_input(struct mtk_hdmi *hdmi)
{
enum hdmi_aud_channel_type chan_type;
@@ -948,56 +778,6 @@ static int mtk_hdmi_aud_output_config(struct mtk_hdmi *hdmi,
return 0;
}

-static int mtk_hdmi_setup_avi_infoframe(struct mtk_hdmi *hdmi,
- struct drm_display_mode *mode)
-{
- struct hdmi_avi_infoframe frame;
- u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AVI_INFOFRAME_SIZE];
- ssize_t err;
-
- err = drm_hdmi_avi_infoframe_from_display_mode(&frame,
- hdmi->curr_conn, mode);
- if (err < 0) {
- dev_err(hdmi->dev,
- "Failed to get AVI infoframe from mode: %zd\n", err);
- return err;
- }
-
- err = hdmi_avi_infoframe_pack(&frame, buffer, sizeof(buffer));
- if (err < 0) {
- dev_err(hdmi->dev, "Failed to pack AVI infoframe: %zd\n", err);
- return err;
- }
-
- mtk_hdmi_hw_send_info_frame(hdmi, buffer, sizeof(buffer));
- return 0;
-}
-
-static int mtk_hdmi_setup_spd_infoframe(struct mtk_hdmi *hdmi,
- const char *vendor,
- const char *product)
-{
- struct hdmi_spd_infoframe frame;
- u8 buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_SPD_INFOFRAME_SIZE];
- ssize_t err;
-
- err = hdmi_spd_infoframe_init(&frame, vendor, product);
- if (err < 0) {
- dev_err(hdmi->dev, "Failed to initialize SPD infoframe: %zd\n",
- err);
- return err;
- }
-
- err = hdmi_spd_infoframe_pack(&frame, buffer, sizeof(buffer));
- if (err < 0) {
- dev_err(hdmi->dev, "Failed to pack SDP infoframe: %zd\n", err);
- return err;
- }
-
- mtk_hdmi_hw_send_info_frame(hdmi, buffer, sizeof(buffer));
- return 0;
-}
-
static int mtk_hdmi_setup_audio_infoframe(struct mtk_hdmi *hdmi)
{
struct hdmi_audio_infoframe frame;
@@ -1054,7 +834,7 @@ static int mtk_hdmi_setup_vendor_specific_infoframe(struct mtk_hdmi *hdmi,
return 0;
}

-static int mtk_hdmi_output_init(struct mtk_hdmi *hdmi)
+void mtk_hdmi_output_init_mt8183(struct mtk_hdmi *hdmi)
{
struct hdmi_audio_param *aud_param = &hdmi->aud_param;

@@ -1065,8 +845,6 @@ static int mtk_hdmi_output_init(struct mtk_hdmi *hdmi)
aud_param->aud_i2s_fmt = HDMI_I2S_MODE_I2S_24BIT;
aud_param->aud_mclk = HDMI_AUD_MCLK_128FS;
aud_param->aud_input_chan_type = HDMI_AUD_CHAN_TYPE_2_0;
-
- return 0;
}

static void mtk_hdmi_audio_enable(struct mtk_hdmi *hdmi)
@@ -1123,49 +901,28 @@ static int mtk_hdmi_output_set_display_mode(struct mtk_hdmi *hdmi,
return 0;
}

-static const char * const mtk_hdmi_clk_names[MTK_HDMI_CLK_COUNT] = {
- [MTK_HDMI_CLK_HDMI_PIXEL] = "pixel",
- [MTK_HDMI_CLK_HDMI_PLL] = "pll",
- [MTK_HDMI_CLK_AUD_BCLK] = "bclk",
- [MTK_HDMI_CLK_AUD_SPDIF] = "spdif",
-};
-
-static int mtk_hdmi_get_all_clk(struct mtk_hdmi *hdmi,
- struct device_node *np)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(mtk_hdmi_clk_names); i++) {
- hdmi->clk[i] = of_clk_get_by_name(np,
- mtk_hdmi_clk_names[i]);
- if (IS_ERR(hdmi->clk[i]))
- return PTR_ERR(hdmi->clk[i]);
- }
- return 0;
-}
-
-static int mtk_hdmi_clk_enable_audio(struct mtk_hdmi *hdmi)
+int mtk_hdmi_clk_enable_audio_mt8183(struct mtk_hdmi *hdmi)
{
int ret;

- ret = clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_AUD_BCLK]);
+ ret = clk_prepare_enable(hdmi->clk[MTK_MT8183_HDMI_CLK_AUD_BCLK]);
if (ret)
return ret;

- ret = clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_AUD_SPDIF]);
+ ret = clk_prepare_enable(hdmi->clk[MTK_MT8183_HDMI_CLK_AUD_SPDIF]);
if (ret)
goto err;

return 0;
err:
- clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_AUD_BCLK]);
+ clk_disable_unprepare(hdmi->clk[MTK_MT8183_HDMI_CLK_AUD_BCLK]);
return ret;
}

-static void mtk_hdmi_clk_disable_audio(struct mtk_hdmi *hdmi)
+void mtk_hdmi_clk_disable_audio_mt8183(struct mtk_hdmi *hdmi)
{
- clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_AUD_BCLK]);
- clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_AUD_SPDIF]);
+ clk_disable_unprepare(hdmi->clk[MTK_MT8183_HDMI_CLK_AUD_BCLK]);
+ clk_disable_unprepare(hdmi->clk[MTK_MT8183_HDMI_CLK_AUD_SPDIF]);
}

static enum drm_connector_status
@@ -1250,21 +1007,6 @@ static enum drm_connector_status mtk_hdmi_bridge_detect(struct drm_bridge *bridg
return mtk_hdmi_detect(hdmi);
}

-static struct edid *mtk_hdmi_bridge_get_edid(struct drm_bridge *bridge,
- struct drm_connector *connector)
-{
- struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
- struct edid *edid;
-
- if (!hdmi->ddc_adpt)
- return NULL;
- edid = drm_get_edid(connector, hdmi->ddc_adpt);
- if (!edid)
- return NULL;
- hdmi->dvi_mode = !drm_detect_monitor_audio(edid);
- return edid;
-}
-
static int mtk_hdmi_bridge_attach(struct drm_bridge *bridge,
enum drm_bridge_attach_flags flags)
{
@@ -1289,13 +1031,6 @@ static int mtk_hdmi_bridge_attach(struct drm_bridge *bridge,
return 0;
}

-static bool mtk_hdmi_bridge_mode_fixup(struct drm_bridge *bridge,
- const struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
-{
- return true;
-}
-
static void mtk_hdmi_bridge_atomic_disable(struct drm_bridge *bridge,
struct drm_bridge_state *old_bridge_state)
{
@@ -1305,8 +1040,8 @@ static void mtk_hdmi_bridge_atomic_disable(struct drm_bridge *bridge,
return;

phy_power_off(hdmi->phy);
- clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_HDMI_PIXEL]);
- clk_disable_unprepare(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL]);
+ clk_disable_unprepare(hdmi->clk[MTK_MT8183_HDMI_CLK_HDMI_PIXEL]);
+ clk_disable_unprepare(hdmi->clk[MTK_MT8183_HDMI_CLK_HDMI_PLL]);

hdmi->curr_conn = NULL;

@@ -1327,28 +1062,6 @@ static void mtk_hdmi_bridge_atomic_post_disable(struct drm_bridge *bridge,
hdmi->powered = false;
}

-static void mtk_hdmi_bridge_mode_set(struct drm_bridge *bridge,
- const struct drm_display_mode *mode,
- const struct drm_display_mode *adjusted_mode)
-{
- struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
-
- dev_dbg(hdmi->dev, "cur info: name:%s, hdisplay:%d\n",
- adjusted_mode->name, adjusted_mode->hdisplay);
- dev_dbg(hdmi->dev, "hsync_start:%d,hsync_end:%d, htotal:%d",
- adjusted_mode->hsync_start, adjusted_mode->hsync_end,
- adjusted_mode->htotal);
- dev_dbg(hdmi->dev, "hskew:%d, vdisplay:%d\n",
- adjusted_mode->hskew, adjusted_mode->vdisplay);
- dev_dbg(hdmi->dev, "vsync_start:%d, vsync_end:%d, vtotal:%d",
- adjusted_mode->vsync_start, adjusted_mode->vsync_end,
- adjusted_mode->vtotal);
- dev_dbg(hdmi->dev, "vscan:%d, flag:%d\n",
- adjusted_mode->vscan, adjusted_mode->flags);
-
- drm_mode_copy(&hdmi->mode, adjusted_mode);
-}
-
static void mtk_hdmi_bridge_atomic_pre_enable(struct drm_bridge *bridge,
struct drm_bridge_state *old_state)
{
@@ -1360,36 +1073,32 @@ static void mtk_hdmi_bridge_atomic_pre_enable(struct drm_bridge *bridge,
hdmi->powered = true;
}

-static void mtk_hdmi_send_infoframe(struct mtk_hdmi *hdmi,
- struct drm_display_mode *mode)
-{
- mtk_hdmi_setup_audio_infoframe(hdmi);
- mtk_hdmi_setup_avi_infoframe(hdmi, mode);
- mtk_hdmi_setup_spd_infoframe(hdmi, "mediatek", "On-chip HDMI");
- if (mode->flags & DRM_MODE_FLAG_3D_MASK)
- mtk_hdmi_setup_vendor_specific_infoframe(hdmi, mode);
-}
-
static void mtk_hdmi_bridge_atomic_enable(struct drm_bridge *bridge,
struct drm_bridge_state *old_state)
{
struct drm_atomic_state *state = old_state->base.state;
struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+ u8 buffer_spd[HDMI_INFOFRAME_SIZE(SPD)];
+ u8 buffer_avi[HDMI_INFOFRAME_SIZE(AVI)];

/* Retrieve the connector through the atomic state. */
hdmi->curr_conn = drm_atomic_get_new_connector_for_encoder(state,
bridge->encoder);

mtk_hdmi_output_set_display_mode(hdmi, &hdmi->mode);
- clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_HDMI_PLL]);
- clk_prepare_enable(hdmi->clk[MTK_HDMI_CLK_HDMI_PIXEL]);
+ clk_prepare_enable(hdmi->clk[MTK_MT8183_HDMI_CLK_HDMI_PLL]);
+ clk_prepare_enable(hdmi->clk[MTK_MT8183_HDMI_CLK_HDMI_PIXEL]);
phy_power_on(hdmi->phy);
- mtk_hdmi_send_infoframe(hdmi, &hdmi->mode);
+ mtk_hdmi_setup_audio_infoframe(hdmi);
+ mtk_hdmi_send_infoframe(hdmi, buffer_spd, sizeof(buffer_spd),
+ buffer_avi, sizeof(buffer_avi), &hdmi->mode);
+ if (hdmi->mode.flags & DRM_MODE_FLAG_3D_MASK)
+ mtk_hdmi_setup_vendor_specific_infoframe(hdmi, &hdmi->mode);

hdmi->enabled = true;
}

-static const struct drm_bridge_funcs mtk_hdmi_bridge_funcs = {
+const struct drm_bridge_funcs mtk_mt8183_hdmi_bridge_funcs = {
.mode_valid = mtk_hdmi_bridge_mode_valid,
.atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
@@ -1405,105 +1114,6 @@ static const struct drm_bridge_funcs mtk_hdmi_bridge_funcs = {
.get_edid = mtk_hdmi_bridge_get_edid,
};

-static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
- struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct device_node *np = dev->of_node;
- struct device_node *cec_np, *remote, *i2c_np;
- struct platform_device *cec_pdev;
- struct regmap *regmap;
- int ret;
-
- ret = mtk_hdmi_get_all_clk(hdmi, np);
- if (ret) {
- if (ret != -EPROBE_DEFER)
- dev_err(dev, "Failed to get clocks: %d\n", ret);
-
- return ret;
- }
-
- /* The CEC module handles HDMI hotplug detection */
- cec_np = of_get_compatible_child(np->parent, "mediatek,mt8173-cec");
- if (!cec_np) {
- dev_err(dev, "Failed to find CEC node\n");
- return -EINVAL;
- }
-
- cec_pdev = of_find_device_by_node(cec_np);
- if (!cec_pdev) {
- dev_err(hdmi->dev, "Waiting for CEC device %pOF\n",
- cec_np);
- of_node_put(cec_np);
- return -EPROBE_DEFER;
- }
- of_node_put(cec_np);
- hdmi->cec_dev = &cec_pdev->dev;
-
- /*
- * The mediatek,syscon-hdmi property contains a phandle link to the
- * MMSYS_CONFIG device and the register offset of the HDMI_SYS_CFG
- * registers it contains.
- */
- regmap = syscon_regmap_lookup_by_phandle(np, "mediatek,syscon-hdmi");
- ret = of_property_read_u32_index(np, "mediatek,syscon-hdmi", 1,
- &hdmi->sys_offset);
- if (IS_ERR(regmap))
- ret = PTR_ERR(regmap);
- if (ret) {
- dev_err(dev,
- "Failed to get system configuration registers: %d\n",
- ret);
- goto put_device;
- }
- hdmi->sys_regmap = regmap;
-
- hdmi->regs = syscon_node_to_regmap(dev->of_node);
- if (IS_ERR(hdmi->regs)) {
- ret = PTR_ERR(hdmi->regs);
- goto put_device;
- }
-
- remote = of_graph_get_remote_node(np, 1, 0);
- if (!remote) {
- ret = -EINVAL;
- goto put_device;
- }
-
- if (!of_device_is_compatible(remote, "hdmi-connector")) {
- hdmi->next_bridge = of_drm_find_bridge(remote);
- if (!hdmi->next_bridge) {
- dev_err(dev, "Waiting for external bridge\n");
- of_node_put(remote);
- ret = -EPROBE_DEFER;
- goto put_device;
- }
- }
-
- i2c_np = of_parse_phandle(remote, "ddc-i2c-bus", 0);
- if (!i2c_np) {
- dev_err(dev, "Failed to find ddc-i2c-bus node in %pOF\n",
- remote);
- of_node_put(remote);
- ret = -EINVAL;
- goto put_device;
- }
- of_node_put(remote);
-
- hdmi->ddc_adpt = of_find_i2c_adapter_by_node(i2c_np);
- of_node_put(i2c_np);
- if (!hdmi->ddc_adpt) {
- dev_err(dev, "Failed to get ddc i2c adapter by node\n");
- ret = -EINVAL;
- goto put_device;
- }
-
- return 0;
-put_device:
- put_device(hdmi->cec_dev);
- return ret;
-}
-
/*
* HDMI audio codec callbacks
*/
@@ -1649,175 +1259,9 @@ static const struct hdmi_codec_ops mtk_hdmi_audio_codec_ops = {
.no_capture_mute = 1,
};

-static int mtk_hdmi_register_audio_driver(struct device *dev)
-{
- struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
- struct hdmi_codec_pdata codec_data = {
- .ops = &mtk_hdmi_audio_codec_ops,
- .max_i2s_channels = 2,
- .i2s = 1,
- .data = hdmi,
- };
- struct platform_device *pdev;
-
- pdev = platform_device_register_data(dev, HDMI_CODEC_DRV_NAME,
- PLATFORM_DEVID_AUTO, &codec_data,
- sizeof(codec_data));
- if (IS_ERR(pdev))
- return PTR_ERR(pdev);
-
- DRM_INFO("%s driver bound to HDMI\n", HDMI_CODEC_DRV_NAME);
- return 0;
-}
-
-static int mtk_drm_hdmi_probe(struct platform_device *pdev)
-{
- struct mtk_hdmi *hdmi;
- struct device *dev = &pdev->dev;
- int ret;
-
- hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
- if (!hdmi)
- return -ENOMEM;
-
- hdmi->dev = dev;
- hdmi->conf = of_device_get_match_data(dev);
-
- ret = mtk_hdmi_dt_parse_pdata(hdmi, pdev);
- if (ret)
- return ret;
-
- hdmi->phy = devm_phy_get(dev, "hdmi");
- if (IS_ERR(hdmi->phy)) {
- ret = PTR_ERR(hdmi->phy);
- dev_err(dev, "Failed to get HDMI PHY: %d\n", ret);
- return ret;
- }
-
- mutex_init(&hdmi->update_plugged_status_lock);
- platform_set_drvdata(pdev, hdmi);
-
- ret = mtk_hdmi_output_init(hdmi);
- if (ret) {
- dev_err(dev, "Failed to initialize hdmi output\n");
- return ret;
- }
-
- ret = mtk_hdmi_register_audio_driver(dev);
- if (ret) {
- dev_err(dev, "Failed to register audio driver: %d\n", ret);
- return ret;
- }
-
- hdmi->bridge.funcs = &mtk_hdmi_bridge_funcs;
- hdmi->bridge.of_node = pdev->dev.of_node;
- hdmi->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID
- | DRM_BRIDGE_OP_HPD;
- hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
- drm_bridge_add(&hdmi->bridge);
-
- ret = mtk_hdmi_clk_enable_audio(hdmi);
- if (ret) {
- dev_err(dev, "Failed to enable audio clocks: %d\n", ret);
- goto err_bridge_remove;
- }
-
- return 0;
-
-err_bridge_remove:
- drm_bridge_remove(&hdmi->bridge);
- return ret;
-}
-
-static int mtk_drm_hdmi_remove(struct platform_device *pdev)
-{
- struct mtk_hdmi *hdmi = platform_get_drvdata(pdev);
-
- drm_bridge_remove(&hdmi->bridge);
- mtk_hdmi_clk_disable_audio(hdmi);
- return 0;
-}
-
-#ifdef CONFIG_PM_SLEEP
-static int mtk_hdmi_suspend(struct device *dev)
-{
- struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
-
- mtk_hdmi_clk_disable_audio(hdmi);
-
- return 0;
-}
-
-static int mtk_hdmi_resume(struct device *dev)
-{
- struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
- int ret = 0;
-
- ret = mtk_hdmi_clk_enable_audio(hdmi);
- if (ret) {
- dev_err(dev, "hdmi resume failed!\n");
- return ret;
- }
-
- return 0;
-}
-#endif
-static SIMPLE_DEV_PM_OPS(mtk_hdmi_pm_ops,
- mtk_hdmi_suspend, mtk_hdmi_resume);
-
-static const struct mtk_hdmi_conf mtk_hdmi_conf_mt2701 = {
- .tz_disabled = true,
-};
-
-static const struct mtk_hdmi_conf mtk_hdmi_conf_mt8167 = {
- .max_mode_clock = 148500,
- .cea_modes_only = true,
-};
-
-static const struct of_device_id mtk_drm_hdmi_of_ids[] = {
- { .compatible = "mediatek,mt2701-hdmi",
- .data = &mtk_hdmi_conf_mt2701,
- },
- { .compatible = "mediatek,mt8167-hdmi",
- .data = &mtk_hdmi_conf_mt8167,
- },
- { .compatible = "mediatek,mt8173-hdmi",
- },
- {}
-};
-MODULE_DEVICE_TABLE(of, mtk_drm_hdmi_of_ids);
-
-static struct platform_driver mtk_hdmi_driver = {
- .probe = mtk_drm_hdmi_probe,
- .remove = mtk_drm_hdmi_remove,
- .driver = {
- .name = "mediatek-drm-hdmi",
- .of_match_table = mtk_drm_hdmi_of_ids,
- .pm = &mtk_hdmi_pm_ops,
- },
-};
-
-static struct platform_driver * const mtk_hdmi_drivers[] = {
- &mtk_hdmi_ddc_driver,
- &mtk_cec_driver,
- &mtk_hdmi_driver,
-};
-
-static int __init mtk_hdmitx_init(void)
-{
- return platform_register_drivers(mtk_hdmi_drivers,
- ARRAY_SIZE(mtk_hdmi_drivers));
-}
-
-static void __exit mtk_hdmitx_exit(void)
+void set_hdmi_codec_pdata_mt8183(struct hdmi_codec_pdata *codec_data)
{
- platform_unregister_drivers(mtk_hdmi_drivers,
- ARRAY_SIZE(mtk_hdmi_drivers));
+ codec_data->ops = &mtk_hdmi_audio_codec_ops;
+ codec_data->max_i2s_channels = 2;
+ codec_data->i2s = 1;
}
-
-module_init(mtk_hdmitx_init);
-module_exit(mtk_hdmitx_exit);
-
-MODULE_AUTHOR("Jie Qiu <[email protected]>");
-MODULE_DESCRIPTION("MediaTek HDMI Driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.h b/drivers/gpu/drm/mediatek/mtk_hdmi.h
index 472bf141c92b..45a6ff1fb7d7 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.h
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.h
@@ -6,9 +6,25 @@
#ifndef _MTK_HDMI_CTRL_H
#define _MTK_HDMI_CTRL_H

+struct mtk_hdmi;
struct platform_driver;

extern struct platform_driver mtk_cec_driver;
extern struct platform_driver mtk_hdmi_ddc_driver;
+extern const struct drm_bridge_funcs mtk_mt8183_hdmi_bridge_funcs;

+void mtk_hdmi_output_init_mt8183(struct mtk_hdmi *hdmi);
+void mtk_hdmi_clk_disable_audio_mt8183(struct mtk_hdmi *hdmi);
+int mtk_hdmi_clk_enable_audio_mt8183(struct mtk_hdmi *hdmi);
+void set_hdmi_codec_pdata_mt8183(struct hdmi_codec_pdata *codec_data);
+
+enum mtk_hdmi_clk_id_mt8183 {
+ MTK_MT8183_HDMI_CLK_HDMI_PIXEL,
+ MTK_MT8183_HDMI_CLK_HDMI_PLL,
+ MTK_MT8183_HDMI_CLK_AUD_BCLK,
+ MTK_MT8183_HDMI_CLK_AUD_SPDIF,
+ MTK_MT8183_HDMI_CLK_COUNT,
+};
+
+extern const char * const mtk_hdmi_clk_names_mt8183[MTK_MT8183_HDMI_CLK_COUNT];
#endif /* _MTK_HDMI_CTRL_H */
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
new file mode 100644
index 000000000000..bfcca6f8b839
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
@@ -0,0 +1,433 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Copyright (c) 2022 BayLibre, SAS
+ * Author: Jie Qiu <[email protected]>
+ */
+#include "mtk_hdmi_common.h"
+
+struct mtk_hdmi *hdmi_ctx_from_bridge(struct drm_bridge *b)
+{
+ return container_of(b, struct mtk_hdmi, bridge);
+}
+
+int mtk_hdmi_read(struct mtk_hdmi *hdmi, u32 offset, u32 *val)
+{
+ return regmap_read(hdmi->regs, offset, val);
+}
+
+void mtk_hdmi_write(struct mtk_hdmi *hdmi, u32 offset, u32 val)
+{
+ regmap_write(hdmi->regs, offset, val);
+}
+
+void mtk_hdmi_clear_bits(struct mtk_hdmi *hdmi, u32 offset, u32 bits)
+{
+ regmap_clear_bits(hdmi->regs, offset, bits);
+}
+
+void mtk_hdmi_set_bits(struct mtk_hdmi *hdmi, u32 offset, u32 bits)
+{
+ regmap_set_bits(hdmi->regs, offset, bits);
+}
+
+void mtk_hdmi_mask(struct mtk_hdmi *hdmi, u32 offset, u32 val, u32 mask)
+{
+ regmap_update_bits(hdmi->regs, offset, mask, val);
+}
+
+int mtk_hdmi_setup_spd_infoframe(struct mtk_hdmi *hdmi, u8 *buffer, size_t bufsz,
+ const char *vendor, const char *product)
+{
+ struct hdmi_spd_infoframe frame;
+ ssize_t err;
+
+ err = hdmi_spd_infoframe_init(&frame, vendor, product);
+ if (err < 0) {
+ dev_err(hdmi->dev, "Failed to initialize SPD infoframe: %zd\n",
+ err);
+ return err;
+ }
+
+ err = hdmi_spd_infoframe_pack(&frame, buffer, bufsz);
+ if (err < 0) {
+ dev_err(hdmi->dev, "Failed to pack SDP infoframe: %zd\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+int mtk_hdmi_get_all_clk(struct mtk_hdmi *hdmi, struct device_node *np,
+ const char *const *mtk_hdmi_clk_names, size_t num_clocks)
+{
+ int i;
+
+ for (i = 0; i < num_clocks; i++) {
+ hdmi->clk[i] = of_clk_get_by_name(np, mtk_hdmi_clk_names[i]);
+ dev_err(hdmi->dev, "Getting clk name: %s\n", mtk_hdmi_clk_names[i]);
+
+ if (IS_ERR(hdmi->clk[i]))
+ return PTR_ERR(hdmi->clk[i]);
+ }
+
+ return 0;
+}
+
+struct edid *mtk_hdmi_bridge_get_edid(struct drm_bridge *bridge,
+ struct drm_connector *connector)
+{
+ struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+ struct edid *edid;
+
+ if (!hdmi->ddc_adpt)
+ return NULL;
+ edid = drm_get_edid(connector, hdmi->ddc_adpt);
+ if (!edid)
+ return NULL;
+ return edid;
+}
+
+bool mtk_hdmi_bridge_mode_fixup(struct drm_bridge *bridge,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode)
+{
+ return true;
+}
+
+void
+mtk_hdmi_bridge_mode_set(struct drm_bridge *bridge,
+ const struct drm_display_mode *mode,
+ const struct drm_display_mode *adjusted_mode)
+{
+ struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
+
+ drm_mode_copy(&hdmi->mode, adjusted_mode);
+}
+
+int mtk_hdmi_setup_avi_infoframe(struct mtk_hdmi *hdmi, u8 *buffer, size_t bufsz,
+ struct drm_display_mode *mode)
+{
+ struct hdmi_avi_infoframe frame;
+ ssize_t err;
+
+ err = drm_hdmi_avi_infoframe_from_display_mode(&frame, &hdmi->conn,
+ mode);
+
+ if (err < 0) {
+ dev_err(hdmi->dev,
+ "Failed to get AVI infoframe from mode: %zd\n", err);
+ return err;
+ }
+
+ err = hdmi_avi_infoframe_pack(&frame, buffer, bufsz);
+
+ if (err < 0) {
+ dev_err(hdmi->dev, "Failed to pack AVI infoframe: %zd\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+void mtk_hdmi_send_infoframe(struct mtk_hdmi *hdmi, u8 *buffer_spd, size_t bufsz_spd,
+ u8 *buffer_avi, size_t bufsz_avi, struct drm_display_mode *mode)
+{
+ mtk_hdmi_setup_avi_infoframe(hdmi, buffer_avi, bufsz_avi, mode);
+ mtk_hdmi_setup_spd_infoframe(hdmi, buffer_spd, bufsz_spd, "mediatek", "On-chip HDMI");
+}
+
+int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, struct platform_device *pdev,
+ const char *const *clk_names, size_t num_clocks)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct device_node *cec_np, *remote, *i2c_np;
+ struct platform_device *cec_pdev;
+ struct regmap *regmap;
+ struct resource *mem;
+ int ret;
+
+ ret = mtk_hdmi_get_all_clk(hdmi, np, clk_names, num_clocks);
+ if (ret) {
+ dev_err(dev, "Failed to get all clks\n");
+ return ret;
+ }
+
+ /* The CEC module handles HDMI hotplug detection */
+ cec_np = of_get_compatible_child(np->parent, "mediatek,mt8173-cec");
+ if (!cec_np) {
+ dev_err(dev, "Failed to find CEC node\n");
+ return -EINVAL;
+ }
+
+ cec_pdev = of_find_device_by_node(cec_np);
+ if (!cec_pdev) {
+ dev_err(hdmi->dev, "Waiting for CEC device %pOF\n", cec_np);
+ of_node_put(cec_np);
+ return -EPROBE_DEFER;
+ }
+ of_node_put(cec_np);
+ hdmi->cec_dev = &cec_pdev->dev;
+ /*
+ * The mediatek,syscon-hdmi property contains a phandle link to the
+ * MMSYS_CONFIG device and the register offset of the HDMI_SYS_CFG
+ * registers it contains.
+ */
+ regmap = syscon_regmap_lookup_by_phandle(np, "mediatek,syscon-hdmi");
+ ret = of_property_read_u32_index(np, "mediatek,syscon-hdmi", 1, &hdmi->sys_offset);
+ if (IS_ERR(regmap))
+ ret = PTR_ERR(regmap);
+ if (ret) {
+ dev_err(dev, "Failed to get system configuration registers: %d\n", ret);
+ goto put_device;
+ }
+ hdmi->sys_regmap = regmap;
+
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem) {
+ ret = -ENOMEM;
+ goto put_device;
+ }
+
+ hdmi->regs = syscon_node_to_regmap(dev->of_node);
+ if (IS_ERR(hdmi->regs)) {
+ ret = PTR_ERR(hdmi->regs);
+ goto put_device;
+ }
+
+ remote = of_graph_get_remote_node(np, 1, 0);
+ if (!remote) {
+ ret = -EINVAL;
+ goto put_device;
+ }
+
+ if (!of_device_is_compatible(remote, "hdmi-connector")) {
+ hdmi->next_bridge = of_drm_find_bridge(remote);
+ if (!hdmi->next_bridge) {
+ dev_err(dev, "Waiting for external bridge\n");
+ of_node_put(remote);
+ ret = -EPROBE_DEFER;
+ goto put_device;
+ }
+ }
+
+ i2c_np = of_parse_phandle(remote, "ddc-i2c-bus", 0);
+ if (!i2c_np) {
+ of_node_put(pdev->dev.of_node);
+ dev_err(dev, "Failed to find ddc-i2c-bus");
+ ret = -EINVAL;
+ goto put_device;
+ }
+
+ hdmi->ddc_adpt = of_find_i2c_adapter_by_node(i2c_np);
+ of_node_put(i2c_np);
+ if (!hdmi->ddc_adpt) {
+ dev_err(dev, "Failed to get ddc i2c adapter by node");
+ ret = -EPROBE_DEFER;
+ goto put_device;
+ }
+
+ return 0;
+put_device:
+ put_device(hdmi->cec_dev);
+ return ret;
+}
+
+static int mtk_hdmi_register_audio_driver(struct device *dev)
+{
+ struct platform_device *pdev;
+ struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+ struct hdmi_codec_pdata codec_data = {
+ .data = hdmi,
+ };
+
+ if (hdmi->conf->set_hdmi_codec_pdata)
+ hdmi->conf->set_hdmi_codec_pdata(&codec_data);
+
+ pdev = platform_device_register_data(dev, HDMI_CODEC_DRV_NAME,
+ PLATFORM_DEVID_AUTO, &codec_data,
+ sizeof(codec_data));
+ if (IS_ERR(pdev))
+ return PTR_ERR(pdev);
+
+ DRM_INFO("%s driver bound to HDMI\n", HDMI_CODEC_DRV_NAME);
+ return 0;
+}
+
+int mtk_drm_hdmi_probe(struct platform_device *pdev)
+{
+ struct mtk_hdmi *hdmi;
+ struct device *dev = &pdev->dev;
+ int ret;
+
+ hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);
+ if (!hdmi)
+ return -ENOMEM;
+
+ hdmi->dev = dev;
+ hdmi->conf = of_device_get_match_data(dev);
+
+ hdmi->clk = devm_kcalloc(dev, hdmi->conf->num_clocks, sizeof(struct clk *),
+ GFP_KERNEL);
+
+ hdmi->phy = devm_phy_get(dev, "hdmi");
+ if (IS_ERR(hdmi->phy)) {
+ ret = PTR_ERR(hdmi->phy);
+ dev_err(dev, "Failed to get HDMI PHY: %d\n", ret);
+ return ret;
+ }
+
+ ret = mtk_hdmi_dt_parse_pdata(hdmi, pdev, hdmi->conf->mtk_hdmi_clock_names,
+ hdmi->conf->num_clocks);
+
+ if (ret)
+ return ret;
+
+ platform_set_drvdata(pdev, hdmi);
+
+ if (hdmi->conf->mtk_hdmi_output_init)
+ hdmi->conf->mtk_hdmi_output_init(hdmi);
+
+ hdmi->bridge.funcs = hdmi->conf->bridge_funcs;
+
+ hdmi->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID | DRM_BRIDGE_OP_HPD;
+ hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
+ hdmi->bridge.of_node = pdev->dev.of_node;
+ drm_bridge_add(&hdmi->bridge);
+
+ ret = mtk_hdmi_register_audio_driver(dev);
+
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+int mtk_drm_hdmi_remove(struct platform_device *pdev)
+{
+ struct mtk_hdmi *hdmi = platform_get_drvdata(pdev);
+
+ drm_bridge_remove(&hdmi->bridge);
+
+ if (hdmi->conf->mtk_hdmi_clk_disable)
+ hdmi->conf->mtk_hdmi_clk_disable(hdmi);
+
+ i2c_put_adapter(hdmi->ddc_adpt);
+
+ return 0;
+}
+
+static const struct mtk_hdmi_conf mtk_hdmi_conf_mt2701 = {
+ .tz_disabled = true,
+ .bridge_funcs = &mtk_mt8183_hdmi_bridge_funcs,
+ .mtk_hdmi_output_init = mtk_hdmi_output_init_mt8183,
+ .mtk_hdmi_clk_disable = mtk_hdmi_clk_disable_audio_mt8183,
+ .mtk_hdmi_clk_enable = mtk_hdmi_clk_enable_audio_mt8183,
+ .set_hdmi_codec_pdata = set_hdmi_codec_pdata_mt8183,
+ .mtk_hdmi_clock_names = mtk_hdmi_clk_names_mt8183,
+ .num_clocks = MTK_MT8183_HDMI_CLK_COUNT,
+};
+
+static const struct mtk_hdmi_conf mtk_hdmi_conf_mt8167 = {
+ .max_mode_clock = 148500,
+ .cea_modes_only = true,
+ .bridge_funcs = &mtk_mt8183_hdmi_bridge_funcs,
+ .mtk_hdmi_output_init = mtk_hdmi_output_init_mt8183,
+ .mtk_hdmi_clk_disable = mtk_hdmi_clk_disable_audio_mt8183,
+ .mtk_hdmi_clk_enable = mtk_hdmi_clk_enable_audio_mt8183,
+ .set_hdmi_codec_pdata = set_hdmi_codec_pdata_mt8183,
+ .mtk_hdmi_clock_names = mtk_hdmi_clk_names_mt8183,
+ .num_clocks = MTK_MT8183_HDMI_CLK_COUNT,
+};
+
+static const struct mtk_hdmi_conf mtk_hdmi_conf_mt8173 = {
+ .bridge_funcs = &mtk_mt8183_hdmi_bridge_funcs,
+ .mtk_hdmi_output_init = mtk_hdmi_output_init_mt8183,
+ .mtk_hdmi_clk_disable = mtk_hdmi_clk_disable_audio_mt8183,
+ .mtk_hdmi_clk_enable = mtk_hdmi_clk_enable_audio_mt8183,
+ .set_hdmi_codec_pdata = set_hdmi_codec_pdata_mt8183,
+ .mtk_hdmi_clock_names = mtk_hdmi_clk_names_mt8183,
+ .num_clocks = MTK_MT8183_HDMI_CLK_COUNT,
+};
+
+static const struct of_device_id mtk_drm_hdmi_of_ids[] = {
+ { .compatible = "mediatek,mt2701-hdmi",
+ .data = &mtk_hdmi_conf_mt2701,
+ },
+ { .compatible = "mediatek,mt8167-hdmi",
+ .data = &mtk_hdmi_conf_mt8167,
+ },
+ { .compatible = "mediatek,mt8173-hdmi",
+ .data = &mtk_hdmi_conf_mt8173,
+ },
+ {}
+};
+MODULE_DEVICE_TABLE(of, mtk_drm_hdmi_of_ids);
+
+#ifdef CONFIG_PM_SLEEP
+static __maybe_unused int mtk_hdmi_suspend(struct device *dev)
+{
+ struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+ if (hdmi->conf->mtk_hdmi_clk_disable)
+ hdmi->conf->mtk_hdmi_clk_disable(hdmi);
+
+ return 0;
+}
+
+static __maybe_unused int mtk_hdmi_resume(struct device *dev)
+{
+ int ret;
+ struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+ dev_dbg(dev, "hdmi resume success!\n");
+
+ if (hdmi->conf->mtk_hdmi_clk_enable) {
+ ret = hdmi->conf->mtk_hdmi_clk_enable(hdmi);
+ if (ret)
+ dev_err(dev, "hdmi resume failed!\n");
+ }
+
+ return ret;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(mtk_hdmi_pm_ops,
+ mtk_hdmi_suspend, mtk_hdmi_resume);
+
+static struct platform_driver mtk_hdmi_driver = {
+ .probe = mtk_drm_hdmi_probe,
+ .remove = mtk_drm_hdmi_remove,
+ .driver = {
+ .name = "mediatek-drm-hdmi",
+ .of_match_table = mtk_drm_hdmi_of_ids,
+ .pm = &mtk_hdmi_pm_ops,
+ },
+};
+
+static struct platform_driver * const mtk_hdmi_drivers[] = {
+ &mtk_hdmi_ddc_driver,
+ &mtk_cec_driver,
+ &mtk_hdmi_driver,
+};
+
+static int __init mtk_hdmitx_init(void)
+{
+ return platform_register_drivers(mtk_hdmi_drivers,
+ ARRAY_SIZE(mtk_hdmi_drivers));
+}
+
+static void __exit mtk_hdmitx_exit(void)
+{
+ platform_unregister_drivers(mtk_hdmi_drivers,
+ ARRAY_SIZE(mtk_hdmi_drivers));
+}
+
+module_init(mtk_hdmitx_init);
+module_exit(mtk_hdmitx_exit);
+
+MODULE_AUTHOR("Jie Qiu <[email protected]>");
+MODULE_AUTHOR("Can Zeng <[email protected]>");
+MODULE_DESCRIPTION("MediaTek HDMI Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.h b/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
new file mode 100644
index 000000000000..7452bea91f9e
--- /dev/null
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
@@ -0,0 +1,221 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Copyright (c) 2022 BayLibre, SAS
+ */
+
+#ifndef _MTK_HDMI_COMMON_H
+#define _MTK_HDMI_COMMON_H
+
+#include <drm/drm_atomic_helper.h>
+#include <drm/drm_bridge.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <drm/drm_edid.h>
+#include <drm/drm_print.h>
+
+#include <linux/clk.h>
+#include <linux/hdmi.h>
+#include <linux/i2c.h>
+#include <linux/mfd/syscon.h>
+#include <linux/mutex.h>
+#include <linux/of_platform.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+
+#include <sound/hdmi-codec.h>
+
+#include "mtk_cec.h"
+#include "mtk_hdmi.h"
+
+struct mtk_hdmi_conf {
+ bool tz_disabled;
+ bool cea_modes_only;
+ unsigned long max_mode_clock;
+ const struct drm_bridge_funcs *bridge_funcs;
+ void (*mtk_hdmi_output_init)(struct mtk_hdmi *hdmi);
+ void (*mtk_hdmi_clk_disable)(struct mtk_hdmi *hdmi);
+ int (*mtk_hdmi_clk_enable)(struct mtk_hdmi *hdmi);
+ void (*set_hdmi_codec_pdata)(struct hdmi_codec_pdata *codec_data);
+ const char *const *mtk_hdmi_clock_names;
+ int num_clocks;
+};
+
+enum hdmi_color_depth { HDMI_8_BIT, HDMI_10_BIT, HDMI_12_BIT, HDMI_16_BIT };
+
+enum hdmi_aud_input_type {
+ HDMI_AUD_INPUT_I2S = 0,
+ HDMI_AUD_INPUT_SPDIF,
+};
+
+enum hdmi_aud_i2s_fmt {
+ HDMI_I2S_MODE_RJT_24BIT = 0,
+ HDMI_I2S_MODE_RJT_16BIT,
+ HDMI_I2S_MODE_LJT_24BIT,
+ HDMI_I2S_MODE_LJT_16BIT,
+ HDMI_I2S_MODE_I2S_24BIT,
+ HDMI_I2S_MODE_I2S_16BIT
+};
+
+enum hdmi_aud_mclk {
+ HDMI_AUD_MCLK_128FS,
+ HDMI_AUD_MCLK_192FS,
+ HDMI_AUD_MCLK_256FS,
+ HDMI_AUD_MCLK_384FS,
+ HDMI_AUD_MCLK_512FS,
+ HDMI_AUD_MCLK_768FS,
+ HDMI_AUD_MCLK_1152FS,
+};
+
+enum hdmi_aud_channel_type {
+ HDMI_AUD_CHAN_TYPE_1_0 = 0,
+ HDMI_AUD_CHAN_TYPE_1_1,
+ HDMI_AUD_CHAN_TYPE_2_0,
+ HDMI_AUD_CHAN_TYPE_2_1,
+ HDMI_AUD_CHAN_TYPE_3_0,
+ HDMI_AUD_CHAN_TYPE_3_1,
+ HDMI_AUD_CHAN_TYPE_4_0,
+ HDMI_AUD_CHAN_TYPE_4_1,
+ HDMI_AUD_CHAN_TYPE_5_0,
+ HDMI_AUD_CHAN_TYPE_5_1,
+ HDMI_AUD_CHAN_TYPE_6_0,
+ HDMI_AUD_CHAN_TYPE_6_1,
+ HDMI_AUD_CHAN_TYPE_7_0,
+ HDMI_AUD_CHAN_TYPE_7_1,
+ HDMI_AUD_CHAN_TYPE_3_0_LRS,
+ HDMI_AUD_CHAN_TYPE_3_1_LRS,
+ HDMI_AUD_CHAN_TYPE_4_0_CLRS,
+ HDMI_AUD_CHAN_TYPE_4_1_CLRS,
+ HDMI_AUD_CHAN_TYPE_6_1_CS,
+ HDMI_AUD_CHAN_TYPE_6_1_CH,
+ HDMI_AUD_CHAN_TYPE_6_1_OH,
+ HDMI_AUD_CHAN_TYPE_6_1_CHR,
+ HDMI_AUD_CHAN_TYPE_7_1_LH_RH,
+ HDMI_AUD_CHAN_TYPE_7_1_LSR_RSR,
+ HDMI_AUD_CHAN_TYPE_7_1_LC_RC,
+ HDMI_AUD_CHAN_TYPE_7_1_LW_RW,
+ HDMI_AUD_CHAN_TYPE_7_1_LSD_RSD,
+ HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS,
+ HDMI_AUD_CHAN_TYPE_7_1_LHS_RHS,
+ HDMI_AUD_CHAN_TYPE_7_1_CS_CH,
+ HDMI_AUD_CHAN_TYPE_7_1_CS_OH,
+ HDMI_AUD_CHAN_TYPE_7_1_CS_CHR,
+ HDMI_AUD_CHAN_TYPE_7_1_CH_OH,
+ HDMI_AUD_CHAN_TYPE_7_1_CH_CHR,
+ HDMI_AUD_CHAN_TYPE_7_1_OH_CHR,
+ HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS_LSR_RSR,
+ HDMI_AUD_CHAN_TYPE_6_0_CS,
+ HDMI_AUD_CHAN_TYPE_6_0_CH,
+ HDMI_AUD_CHAN_TYPE_6_0_OH,
+ HDMI_AUD_CHAN_TYPE_6_0_CHR,
+ HDMI_AUD_CHAN_TYPE_7_0_LH_RH,
+ HDMI_AUD_CHAN_TYPE_7_0_LSR_RSR,
+ HDMI_AUD_CHAN_TYPE_7_0_LC_RC,
+ HDMI_AUD_CHAN_TYPE_7_0_LW_RW,
+ HDMI_AUD_CHAN_TYPE_7_0_LSD_RSD,
+ HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS,
+ HDMI_AUD_CHAN_TYPE_7_0_LHS_RHS,
+ HDMI_AUD_CHAN_TYPE_7_0_CS_CH,
+ HDMI_AUD_CHAN_TYPE_7_0_CS_OH,
+ HDMI_AUD_CHAN_TYPE_7_0_CS_CHR,
+ HDMI_AUD_CHAN_TYPE_7_0_CH_OH,
+ HDMI_AUD_CHAN_TYPE_7_0_CH_CHR,
+ HDMI_AUD_CHAN_TYPE_7_0_OH_CHR,
+ HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS_LSR_RSR,
+ HDMI_AUD_CHAN_TYPE_8_0_LH_RH_CS,
+ HDMI_AUD_CHAN_TYPE_UNKNOWN = 0xFF
+};
+
+enum hdmi_aud_channel_swap_type {
+ HDMI_AUD_SWAP_LR,
+ HDMI_AUD_SWAP_LFE_CC,
+ HDMI_AUD_SWAP_LSRS,
+ HDMI_AUD_SWAP_RLS_RRS,
+ HDMI_AUD_SWAP_LR_STATUS,
+};
+
+enum hdmi_hpd_state {
+ HDMI_PLUG_OUT = 0,
+ HDMI_PLUG_IN_AND_SINK_POWER_ON,
+ HDMI_PLUG_IN_ONLY,
+};
+
+struct hdmi_audio_param {
+ enum hdmi_audio_coding_type aud_codec;
+ enum hdmi_audio_sample_size aud_sampe_size;
+ enum hdmi_aud_input_type aud_input_type;
+ enum hdmi_aud_i2s_fmt aud_i2s_fmt;
+ enum hdmi_aud_mclk aud_mclk;
+ enum hdmi_aud_channel_type aud_input_chan_type;
+ struct hdmi_codec_params codec_params;
+};
+
+struct mtk_hdmi {
+ struct drm_bridge bridge;
+ struct drm_connector conn;
+ struct device *dev;
+ const struct mtk_hdmi_conf *conf;
+ struct phy *phy;
+ struct i2c_adapter *ddc_adpt;
+ struct clk **clk;
+ struct drm_display_mode mode;
+ bool dvi_mode;
+ struct regmap *sys_regmap;
+ unsigned int sys_offset;
+ struct regmap *regs;
+ u64 support_csp_depth;
+ u64 set_csp_depth;
+ enum hdmi_colorspace csp;
+ enum hdmi_color_depth color_depth;
+ enum hdmi_colorimetry colorimtery;
+ enum hdmi_extended_colorimetry extended_colorimetry;
+ enum hdmi_quantization_range quantization_range;
+ enum hdmi_ycc_quantization_range ycc_quantization_range;
+
+ bool powered;
+ bool enabled;
+ unsigned int hdmi_irq;
+ enum hdmi_hpd_state hpd;
+
+ bool hdmi_enabled;
+ bool power_clk_enabled;
+ bool irq_registered;
+
+ /* Audio */
+ struct hdmi_audio_param aud_param;
+ bool audio_enable;
+
+ struct drm_connector *curr_conn;/* current connector (only valid when 'enabled') */
+ struct mutex update_plugged_status_lock;
+ struct device *cec_dev;
+ struct device *codec_dev;
+ hdmi_codec_plugged_cb plugged_cb;
+ struct drm_bridge *next_bridge;
+};
+
+struct mtk_hdmi *hdmi_ctx_from_bridge(struct drm_bridge *b);
+int mtk_hdmi_read(struct mtk_hdmi *hdmi, u32 offset, u32 *val);
+void mtk_hdmi_write(struct mtk_hdmi *hdmi, u32 offset, u32 val);
+void mtk_hdmi_clear_bits(struct mtk_hdmi *hdmi, u32 offset, u32 bits);
+void mtk_hdmi_set_bits(struct mtk_hdmi *hdmi, u32 offset, u32 bits);
+void mtk_hdmi_mask(struct mtk_hdmi *hdmi, u32 offset, u32 val, u32 mask);
+int mtk_hdmi_setup_spd_infoframe(struct mtk_hdmi *hdmi, u8 *buffer, size_t bufsz,
+ const char *vendor, const char *product);
+void mtk_hdmi_send_infoframe(struct mtk_hdmi *hdmi, u8 *buffer_spd, size_t bufsz_spd,
+ u8 *buffer_avi, size_t bufsz_avi, struct drm_display_mode *mode);
+int mtk_hdmi_get_all_clk(struct mtk_hdmi *hdmi, struct device_node *np,
+ const char *const *clk_names, size_t num_clocks);
+struct edid *mtk_hdmi_bridge_get_edid(struct drm_bridge *bridge,
+ struct drm_connector *connector);
+bool mtk_hdmi_bridge_mode_fixup(struct drm_bridge *bridge,
+ const struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode);
+void mtk_hdmi_bridge_mode_set(struct drm_bridge *bridge,
+ const struct drm_display_mode *mode,
+ const struct drm_display_mode *adjusted_mode);
+int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
+ struct platform_device *pdev, const char *const *clk_names, size_t num_clocks);
+int mtk_drm_hdmi_probe(struct platform_device *pdev);
+int mtk_drm_hdmi_remove(struct platform_device *pdev);
+
+#endif //_MTK_HDMI_COMMON_H

--
b4 0.10.0-dev

2022-09-19 17:36:38

[permalink] [raw]

Subject: [PATCH v1 02/17] clk: mediatek: add VDOSYS1 clock

From: Pablo Sun <[email protected]>

Add the clock gate definition for the DPI1 hardware
in VDOSYS1.

The parent clock "hdmi_txpll" is already defined in
`mt8195.dtsi`.

Signed-off-by: Pablo Sun <[email protected]>
Signed-off-by: Guillaume Ranquet <[email protected]>

diff --git a/drivers/clk/mediatek/clk-mt8195-vdo1.c b/drivers/clk/mediatek/clk-mt8195-vdo1.c
index d54d7726d186..835335b9d87b 100644
--- a/drivers/clk/mediatek/clk-mt8195-vdo1.c
+++ b/drivers/clk/mediatek/clk-mt8195-vdo1.c
@@ -34,6 +34,12 @@ static const struct mtk_gate_regs vdo1_3_cg_regs = {
.sta_ofs = 0x140,
};

+static const struct mtk_gate_regs vdo1_4_cg_regs = {
+ .set_ofs = 0x400,
+ .clr_ofs = 0x400,
+ .sta_ofs = 0x400,
+};
+
#define GATE_VDO1_0(_id, _name, _parent, _shift) \
GATE_MTK(_id, _name, _parent, &vdo1_0_cg_regs, _shift, &mtk_clk_gate_ops_setclr)

@@ -50,6 +56,9 @@ static const struct mtk_gate_regs vdo1_3_cg_regs = {
#define GATE_VDO1_3(_id, _name, _parent, _shift) \
GATE_MTK(_id, _name, _parent, &vdo1_3_cg_regs, _shift, &mtk_clk_gate_ops_setclr)

+#define GATE_VDO1_4(_id, _name, _parent, _shift) \
+ GATE_MTK(_id, _name, _parent, &vdo1_4_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
+
static const struct mtk_gate vdo1_clks[] = {
/* VDO1_0 */
GATE_VDO1_0(CLK_VDO1_SMI_LARB2, "vdo1_smi_larb2", "top_vpp", 0),
@@ -107,6 +116,8 @@ static const struct mtk_gate vdo1_clks[] = {
GATE_VDO1_2(CLK_VDO1_DISP_MONITOR_DPINTF, "vdo1_disp_monitor_dpintf", "top_vpp", 17),
/* VDO1_3 */
GATE_VDO1_3(CLK_VDO1_26M_SLOW, "vdo1_26m_slow", "clk26m", 8),
+ /* VDO1_4 */
+ GATE_VDO1_4(CLK_VDO1_DPI1_HDMI, "vdo1_dpi1_hdmi", "hdmi_txpll", 0),
};

static int clk_mt8195_vdo1_probe(struct platform_device *pdev)

--
b4 0.10.0-dev

2022-09-19 17:37:22

[permalink] [raw]

Subject: [PATCH v1 12/17] drm/mediatek: hdmi: mt8195: add audio support

Add HDMI audio support for mt8195

Signed-off-by: Guillaume Ranquet <[email protected]>

diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
index 39e07a6dd490..bb7593ea4c86 100644
--- a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
@@ -215,6 +215,26 @@ static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black)
mtk_hdmi_mask(hdmi, TOP_VMUTE_CFG1, 0, REG_VMUTE_EN);
}

+static void mtk_hdmi_hw_aud_mute(struct mtk_hdmi *hdmi)
+{
+ u32 val;
+
+ val = mtk_hdmi_read(hdmi, AIP_CTRL, &val);
+
+ if (val & DSD_EN)
+ mtk_hdmi_mask(hdmi, AIP_TXCTRL,
+ DSD_MUTE_DATA | AUD_MUTE_FIFO_EN,
+ DSD_MUTE_DATA | AUD_MUTE_FIFO_EN);
+ else
+ mtk_hdmi_mask(hdmi, AIP_TXCTRL, AUD_MUTE_FIFO_EN,
+ AUD_MUTE_FIFO_EN);
+}
+
+static void mtk_hdmi_hw_aud_unmute(struct mtk_hdmi *hdmi)
+{
+ mtk_hdmi_mask(hdmi, AIP_TXCTRL, AUD_MUTE_DIS, AUD_MUTE_FIFO_EN);
+}
+
static void mtk_hdmi_hw_reset(struct mtk_hdmi *hdmi)
{
mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0x0 << HDMITX_SW_RSTB_SHIFT,
@@ -899,6 +919,7 @@ static void mtk_hdmi_audio_reset(struct mtk_hdmi *hdmi, bool rst)
static void mtk_hdmi_aud_output_config(struct mtk_hdmi *hdmi,
struct drm_display_mode *display_mode)
{
+ mtk_hdmi_hw_aud_mute(hdmi);
mtk_hdmi_aud_enable_packet(hdmi, false);
mtk_hdmi_audio_reset(hdmi, true);
mtk_hdmi_aip_ctrl_init(hdmi);
@@ -911,6 +932,7 @@ static void mtk_hdmi_aud_output_config(struct mtk_hdmi *hdmi,
usleep_range(25, 50);
mtk_hdmi_aud_on_off_hw_ncts(hdmi, true);
mtk_hdmi_aud_enable_packet(hdmi, true);
+ mtk_hdmi_hw_aud_unmute(hdmi);
}

void mtk_hdmi_output_init_mt8195(struct mtk_hdmi *hdmi)
@@ -945,6 +967,28 @@ static void mtk_hdmi_reset_colorspace_setting(struct mtk_hdmi *hdmi)
hdmi->ycc_quantization_range = HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
}

+static void mtk_hdmi_audio_enable(struct mtk_hdmi *hdmi)
+{
+ mtk_hdmi_aud_enable_packet(hdmi, true);
+ hdmi->audio_enable = true;
+}
+
+static void mtk_hdmi_audio_disable(struct mtk_hdmi *hdmi)
+{
+ mtk_hdmi_aud_enable_packet(hdmi, false);
+ hdmi->audio_enable = false;
+}
+
+static void mtk_hdmi_audio_set_param(struct mtk_hdmi *hdmi,
+ struct hdmi_audio_param *param)
+{
+ if (!hdmi->audio_enable)
+ return;
+
+ memcpy(&hdmi->aud_param, param, sizeof(*param));
+ mtk_hdmi_aud_output_config(hdmi, &hdmi->mode);
+}
+
static void mtk_hdmi_change_video_resolution(struct mtk_hdmi *hdmi)
{
bool is_over_340M = false;
@@ -965,6 +1009,7 @@ static void mtk_hdmi_change_video_resolution(struct mtk_hdmi *hdmi)

usleep_range(5, 10);
mtk_hdmi_hw_vid_black(hdmi, true);
+ mtk_hdmi_hw_aud_mute(hdmi);
mtk_hdmi_hw_send_av_unmute(hdmi);

mtk_hdmi_mask(hdmi, TOP_CFG01, NULL_PKT_VSYNC_HIGH_EN,
@@ -1295,12 +1340,21 @@ static void mtk_hdmi_bridge_disable(struct drm_bridge *bridge,
mtk_hdmi_hw_send_av_mute(hdmi);
usleep_range(50000, 50050);
mtk_hdmi_hw_vid_black(hdmi, true);
+ mtk_hdmi_hw_aud_mute(hdmi);
mtk_hdmi_disable_hdcp_encrypt(hdmi);
usleep_range(50000, 50050);

hdmi->enabled = false;
}

+static void mtk_hdmi_handle_plugged_change(struct mtk_hdmi *hdmi, bool plugged)
+{
+ mutex_lock(&hdmi->update_plugged_status_lock);
+ if (hdmi->plugged_cb && hdmi->codec_dev)
+ hdmi->plugged_cb(hdmi->codec_dev, plugged);
+ mutex_unlock(&hdmi->update_plugged_status_lock);
+}
+
static void mtk_hdmi_bridge_post_disable(struct drm_bridge *bridge,
struct drm_bridge_state *old_state)
{
@@ -1314,6 +1368,9 @@ static void mtk_hdmi_bridge_post_disable(struct drm_bridge *bridge,
hdmi->powered = false;

mtk_hdmi_reset_colorspace_setting(hdmi);
+
+ /* signal the disconnect event to audio codec */
+ mtk_hdmi_handle_plugged_change(hdmi, false);
}

static void mtk_hdmi_bridge_pre_enable(struct drm_bridge *bridge,
@@ -1346,6 +1403,10 @@ static void mtk_hdmi_bridge_enable(struct drm_bridge *bridge,
mtk_hdmi_hw_avi_infoframe(hdmi, buffer_avi, sizeof(buffer_avi));

mtk_hdmi_hw_vid_black(hdmi, false);
+ mtk_hdmi_hw_aud_unmute(hdmi);
+
+ /* signal the connect event to audio codec */
+ mtk_hdmi_handle_plugged_change(hdmi, true);

hdmi->enabled = true;
}
@@ -1385,3 +1446,155 @@ const struct drm_bridge_funcs mtk_mt8195_hdmi_bridge_funcs = {
.get_edid = mtk_hdmi_bridge_get_edid,
.detect = mtk_hdmi_bridge_detect,
};
+
+static void mtk_hdmi_set_plugged_cb(struct mtk_hdmi *hdmi,
+ hdmi_codec_plugged_cb fn,
+ struct device *codec_dev)
+{
+ bool plugged;
+
+ mutex_lock(&hdmi->update_plugged_status_lock);
+ hdmi->plugged_cb = fn;
+ hdmi->codec_dev = codec_dev;
+ plugged = (hdmi->hpd == HDMI_PLUG_IN_AND_SINK_POWER_ON) ? true : false;
+ mutex_unlock(&hdmi->update_plugged_status_lock);
+
+ mtk_hdmi_handle_plugged_change(hdmi, plugged);
+}
+
+/*
+ * HDMI audio codec callbacks
+ */
+static int mtk_hdmi_audio_hook_plugged_cb(struct device *dev, void *data,
+ hdmi_codec_plugged_cb fn,
+ struct device *codec_dev)
+{
+ struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+ if (!hdmi)
+ return -ENODEV;
+
+ mtk_hdmi_set_plugged_cb(hdmi, fn, codec_dev);
+ return 0;
+}
+
+static int mtk_hdmi_audio_hw_params(struct device *dev, void *data,
+ struct hdmi_codec_daifmt *daifmt,
+ struct hdmi_codec_params *params)
+{
+ struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+ struct hdmi_audio_param hdmi_params;
+ unsigned int chan = params->cea.channels;
+
+ if (!hdmi->bridge.encoder)
+ return -ENODEV;
+
+ switch (chan) {
+ case 2:
+ hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_2_0;
+ break;
+ case 4:
+ hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_4_0;
+ break;
+ case 6:
+ hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_5_1;
+ break;
+ case 8:
+ hdmi_params.aud_input_chan_type = HDMI_AUD_CHAN_TYPE_7_1;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (params->sample_rate) {
+ case 32000:
+ case 44100:
+ case 48000:
+ case 88200:
+ case 96000:
+ case 176400:
+ case 192000:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (daifmt->fmt) {
+ case HDMI_I2S:
+ hdmi_params.aud_codec = HDMI_AUDIO_CODING_TYPE_PCM;
+ hdmi_params.aud_sampe_size = HDMI_AUDIO_SAMPLE_SIZE_16;
+ hdmi_params.aud_input_type = HDMI_AUD_INPUT_I2S;
+ hdmi_params.aud_i2s_fmt = HDMI_I2S_MODE_I2S_24BIT;
+ hdmi_params.aud_mclk = HDMI_AUD_MCLK_128FS;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ memcpy(&hdmi_params.codec_params, params,
+ sizeof(hdmi_params.codec_params));
+
+ mtk_hdmi_audio_set_param(hdmi, &hdmi_params);
+
+ return 0;
+}
+
+static int mtk_hdmi_audio_startup(struct device *dev, void *data)
+{
+ struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+ mtk_hdmi_audio_enable(hdmi);
+
+ return 0;
+}
+
+static void mtk_hdmi_audio_shutdown(struct device *dev, void *data)
+{
+ struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+ mtk_hdmi_audio_disable(hdmi);
+}
+
+static int mtk_hdmi_audio_mute(struct device *dev, void *data, bool enable,
+ int direction)
+{
+ struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+ if (direction != SNDRV_PCM_STREAM_PLAYBACK)
+ return 0;
+
+ if (enable)
+ mtk_hdmi_hw_aud_mute(hdmi);
+ else
+ mtk_hdmi_hw_aud_unmute(hdmi);
+
+ return 0;
+}
+
+static int mtk_hdmi_audio_get_eld(struct device *dev, void *data, uint8_t *buf,
+ size_t len)
+{
+ struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
+
+ if (hdmi->enabled)
+ memcpy(buf, hdmi->conn.eld, min(sizeof(hdmi->conn.eld), len));
+ else
+ memset(buf, 0, len);
+ return 0;
+}
+
+static const struct hdmi_codec_ops mtk_hdmi_audio_codec_ops = {
+ .hw_params = mtk_hdmi_audio_hw_params,
+ .audio_startup = mtk_hdmi_audio_startup,
+ .audio_shutdown = mtk_hdmi_audio_shutdown,
+ .mute_stream = mtk_hdmi_audio_mute,
+ .get_eld = mtk_hdmi_audio_get_eld,
+ .hook_plugged_cb = mtk_hdmi_audio_hook_plugged_cb,
+};
+
+void set_hdmi_codec_pdata_mt8195(struct hdmi_codec_pdata *codec_data)
+{
+ codec_data->ops = &mtk_hdmi_audio_codec_ops;
+ codec_data->max_i2s_channels = 2;
+ codec_data->i2s = 1;
+}
diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h
index f59aea51dc74..22af64916219 100644
--- a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h
+++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h
@@ -9,6 +9,7 @@

#include <linux/hdmi.h>
#include <drm/drm_bridge.h>
+#include <sound/hdmi-codec.h>

struct mtk_hdmi;

@@ -17,6 +18,7 @@ extern const struct drm_bridge_funcs mtk_mt8195_hdmi_bridge_funcs;
void mtk_hdmi_output_init_mt8195(struct mtk_hdmi *hdmi);
int mtk_hdmi_clk_enable_mt8195(struct mtk_hdmi *hdmi);
void mtk_hdmi_clk_disable_mt8195(struct mtk_hdmi *hdmi);
+void set_hdmi_codec_pdata_mt8195(struct hdmi_codec_pdata *codec_data);

enum mtk_hdmi_clk_id_mt8195 {
MTK_MT8195_HDIM_HDCP_SEL,

--
b4 0.10.0-dev

2022-09-19 17:38:38

[permalink] [raw]

Subject: [PATCH v1 13/17] phy: phy-mtk-hdmi: Add generic phy configure callback

Some phys, such as mt8195, needs to have a configure callback defined.

Signed-off-by: Guillaume Ranquet <[email protected]>

diff --git a/drivers/phy/mediatek/phy-mtk-hdmi.c b/drivers/phy/mediatek/phy-mtk-hdmi.c
index d4bd419abc3c..af46472237e0 100644
--- a/drivers/phy/mediatek/phy-mtk-hdmi.c
+++ b/drivers/phy/mediatek/phy-mtk-hdmi.c
@@ -8,10 +8,12 @@

static int mtk_hdmi_phy_power_on(struct phy *phy);
static int mtk_hdmi_phy_power_off(struct phy *phy);
+static int mtk_hdmi_phy_configure(struct phy *phy, union phy_configure_opts *opts);

static const struct phy_ops mtk_hdmi_phy_dev_ops = {
.power_on = mtk_hdmi_phy_power_on,
.power_off = mtk_hdmi_phy_power_off,
+ .configure = mtk_hdmi_phy_configure,
.owner = THIS_MODULE,
};

@@ -76,6 +78,16 @@ static int mtk_hdmi_phy_power_off(struct phy *phy)
return 0;
}

+static int mtk_hdmi_phy_configure(struct phy *phy, union phy_configure_opts *opts)
+{
+ struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);
+
+ if (hdmi_phy->conf->hdmi_phy_configure)
+ return hdmi_phy->conf->hdmi_phy_configure(phy, opts);
+
+ return 0;
+}
+
static const struct phy_ops *
mtk_hdmi_phy_dev_get_ops(const struct mtk_hdmi_phy *hdmi_phy)
{
diff --git a/drivers/phy/mediatek/phy-mtk-hdmi.h b/drivers/phy/mediatek/phy-mtk-hdmi.h
index dcf9bb13699b..05de93f63a61 100644
--- a/drivers/phy/mediatek/phy-mtk-hdmi.h
+++ b/drivers/phy/mediatek/phy-mtk-hdmi.h
@@ -25,6 +25,7 @@ struct mtk_hdmi_phy_conf {
const struct clk_ops *hdmi_phy_clk_ops;
void (*hdmi_phy_enable_tmds)(struct mtk_hdmi_phy *hdmi_phy);
void (*hdmi_phy_disable_tmds)(struct mtk_hdmi_phy *hdmi_phy);
+ int (*hdmi_phy_configure)(struct phy *phy, union phy_configure_opts *opts);
};

struct mtk_hdmi_phy {

--
b4 0.10.0-dev

2022-09-19 17:39:10

[permalink] [raw]

Subject: [PATCH v1 16/17] drm/mediatek: dpi: Add mt8195 hdmi to DPI driver

Add the DPI1 hdmi path support in mtk dpi driver

Signed-off-by: Guillaume Ranquet <[email protected]>

diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
index 630a4e301ef6..91212b7610e8 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
@@ -15,7 +15,10 @@
#include <linux/of_graph.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
+#include <linux/reset.h>
#include <linux/types.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>

#include <video/videomode.h>

@@ -66,10 +69,14 @@ struct mtk_dpi {
struct drm_bridge *next_bridge;
struct drm_connector *connector;
void __iomem *regs;
+ struct reset_control *reset_ctl;
struct device *dev;
struct clk *engine_clk;
+ struct clk *dpi_ck_cg;
struct clk *pixel_clk;
+ struct clk *dpi_sel_clk;
struct clk *tvd_clk;
+ struct clk *hdmi_cg;
int irq;
struct drm_display_mode mode;
const struct mtk_dpi_conf *conf;
@@ -135,6 +142,7 @@ struct mtk_dpi_yc_limit {
* @yuv422_en_bit: Enable bit of yuv422.
* @csc_enable_bit: Enable bit of CSC.
* @pixels_per_iter: Quantity of transferred pixels per iteration.
+ * @is_internal_hdmi: True if this DPI block is directly connected to SoC internal HDMI block
*/
struct mtk_dpi_conf {
unsigned int (*cal_factor)(int clock);
@@ -153,6 +161,7 @@ struct mtk_dpi_conf {
u32 yuv422_en_bit;
u32 csc_enable_bit;
u32 pixels_per_iter;
+ bool is_internal_hdmi;
};

static void mtk_dpi_mask(struct mtk_dpi *dpi, u32 offset, u32 val, u32 mask)
@@ -466,8 +475,15 @@ static void mtk_dpi_power_off(struct mtk_dpi *dpi)
pinctrl_select_state(dpi->pinctrl, dpi->pins_gpio);

mtk_dpi_disable(dpi);
+
+ reset_control_rearm(dpi->reset_ctl);
+
clk_disable_unprepare(dpi->pixel_clk);
clk_disable_unprepare(dpi->engine_clk);
+ clk_disable_unprepare(dpi->dpi_sel_clk);
+ clk_disable_unprepare(dpi->dpi_ck_cg);
+ clk_disable_unprepare(dpi->hdmi_cg);
+ clk_disable_unprepare(dpi->tvd_clk);
}

static int mtk_dpi_power_on(struct mtk_dpi *dpi)
@@ -483,12 +499,44 @@ static int mtk_dpi_power_on(struct mtk_dpi *dpi)
goto err_refcount;
}

+ ret = clk_prepare_enable(dpi->dpi_sel_clk);
+ if (ret) {
+ dev_err(dpi->dev, "failed to enable dpi_sel clock: %d\n", ret);
+ goto err_refcount;
+ }
+
+ ret = clk_prepare_enable(dpi->tvd_clk);
+ if (ret) {
+ dev_err(dpi->dev, "Failed to enable tvd pll: %d\n", ret);
+ goto err_tvd;
+ }
+
+ ret = clk_prepare_enable(dpi->engine_clk);
+ if (ret) {
+ dev_err(dpi->dev, "Failed to enable engine clock: %d\n", ret);
+ goto err_engine;
+ }
+
+ ret = clk_prepare_enable(dpi->hdmi_cg);
+ if (ret) {
+ dev_err(dpi->dev, "Failed to enable hdmi_cg clock: %d\n", ret);
+ goto err_hdmi_cg;
+ }
+
+ ret = clk_prepare_enable(dpi->dpi_ck_cg);
+ if (ret) {
+ dev_err(dpi->dev, "Failed to enable dpi_ck_cg clock: %d\n", ret);
+ goto err_ck_cg;
+ }
+
ret = clk_prepare_enable(dpi->pixel_clk);
if (ret) {
dev_err(dpi->dev, "Failed to enable pixel clock: %d\n", ret);
goto err_pixel;
}

+ reset_control_reset(dpi->reset_ctl);
+
if (dpi->pinctrl && dpi->pins_dpi)
pinctrl_select_state(dpi->pinctrl, dpi->pins_dpi);

@@ -496,6 +544,15 @@ static int mtk_dpi_power_on(struct mtk_dpi *dpi)

err_pixel:
clk_disable_unprepare(dpi->engine_clk);
+ clk_disable_unprepare(dpi->dpi_ck_cg);
+err_ck_cg:
+ clk_disable_unprepare(dpi->hdmi_cg);
+err_hdmi_cg:
+ clk_disable_unprepare(dpi->engine_clk);
+err_engine:
+ clk_disable_unprepare(dpi->tvd_clk);
+err_tvd:
+ clk_disable_unprepare(dpi->dpi_sel_clk);
err_refcount:
dpi->refcount--;
return ret;
@@ -539,7 +596,6 @@ static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
else
clk_set_rate(dpi->pixel_clk, vm.pixelclock);

-
vm.pixelclock = clk_get_rate(dpi->pixel_clk);

dev_dbg(dpi->dev, "Got PLL %lu Hz, pixel clock %lu Hz\n",
@@ -606,7 +662,16 @@ static int mtk_dpi_set_display_mode(struct mtk_dpi *dpi,
if (dpi->conf->support_direct_pin) {
mtk_dpi_config_yc_map(dpi, dpi->yc_map);
mtk_dpi_config_2n_h_fre(dpi);
- mtk_dpi_dual_edge(dpi);
+ // DPI could be connecting to external bridge
+ // or internal HDMI encoder.
+ if (dpi->conf->is_internal_hdmi) {
+ mtk_dpi_mask(dpi, DPI_CON, DPI_OUTPUT_1T1P_EN,
+ DPI_OUTPUT_1T1P_EN);
+ mtk_dpi_mask(dpi, DPI_CON, DPI_INPUT_2P_EN,
+ DPI_INPUT_2P_EN);
+ } else {
+ mtk_dpi_dual_edge(dpi);
+ }
mtk_dpi_config_disable_edge(dpi);
}
if (dpi->conf->input_2pixel) {
@@ -721,7 +786,10 @@ static void mtk_dpi_bridge_disable(struct drm_bridge *bridge)
{
struct mtk_dpi *dpi = bridge_to_dpi(bridge);

- mtk_dpi_power_off(dpi);
+ if (dpi->conf->is_internal_hdmi)
+ mtk_dpi_power_off(dpi);
+ else
+ mtk_dpi_disable(dpi);
}

static void mtk_dpi_bridge_enable(struct drm_bridge *bridge)
@@ -764,14 +832,16 @@ void mtk_dpi_start(struct device *dev)
{
struct mtk_dpi *dpi = dev_get_drvdata(dev);

- mtk_dpi_power_on(dpi);
+ if (!dpi->conf->is_internal_hdmi)
+ mtk_dpi_power_on(dpi);
}

void mtk_dpi_stop(struct device *dev)
{
struct mtk_dpi *dpi = dev_get_drvdata(dev);

- mtk_dpi_power_off(dpi);
+ if (!dpi->conf->is_internal_hdmi)
+ mtk_dpi_power_off(dpi);
}

static int mtk_dpi_bind(struct device *dev, struct device *master, void *data)
@@ -854,6 +924,11 @@ static unsigned int mt8183_calculate_factor(int clock)
return 2;
}

+static unsigned int mt8195_calculate_factor(int clock)
+{
+ return 1;
+}
+
static unsigned int mt8195_dpintf_calculate_factor(int clock)
{
if (clock < 70000)
@@ -947,6 +1022,24 @@ static const struct mtk_dpi_conf mt8192_conf = {
.csc_enable_bit = CSC_ENABLE,
};

+static const struct mtk_dpi_conf mt8195_conf = {
+ .cal_factor = mt8195_calculate_factor,
+ .max_clock_khz = 594000,
+ .reg_h_fre_con = 0xe0,
+ .output_fmts = mt8183_output_fmts,
+ .num_output_fmts = ARRAY_SIZE(mt8183_output_fmts),
+ .pixels_per_iter = 1,
+ .is_ck_de_pol = true,
+ .swap_input_support = true,
+ .dimension_mask = HPW_MASK,
+ .hvsize_mask = HSIZE_MASK,
+ .channel_swap_shift = CH_SWAP,
+ .yuv422_en_bit = YUV422_EN,
+ .csc_enable_bit = CSC_ENABLE,
+ .is_internal_hdmi = true,
+ .support_direct_pin = true,
+};
+
static const struct mtk_dpi_conf mt8195_dpintf_conf = {
.cal_factor = mt8195_dpintf_calculate_factor,
.max_clock_khz = 600000,
@@ -1004,6 +1097,12 @@ static int mtk_dpi_probe(struct platform_device *pdev)
return ret;
}

+ dpi->reset_ctl = devm_reset_control_get_optional_exclusive(dev, "dpi_on");
+ if (IS_ERR(dpi->reset_ctl)) {
+ dev_err(dev, "Failed to get reset_ctl: %ld\n", PTR_ERR(dpi->reset_ctl));
+ return PTR_ERR(dpi->reset_ctl);
+ }
+
dpi->engine_clk = devm_clk_get(dev, "engine");
if (IS_ERR(dpi->engine_clk)) {
ret = PTR_ERR(dpi->engine_clk);
@@ -1013,7 +1112,26 @@ static int mtk_dpi_probe(struct platform_device *pdev)
return ret;
}

- dpi->pixel_clk = devm_clk_get(dev, "pixel");
+ dpi->hdmi_cg = devm_clk_get_optional(dev, "hdmi_cg");
+ if (IS_ERR(dpi->hdmi_cg)) {
+ ret = PTR_ERR(dpi->hdmi_cg);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to get hdmi_cg clock: %d\n", ret);
+
+ return ret;
+ }
+
+ dpi->dpi_ck_cg = devm_clk_get_optional(dev, "ck_cg");
+ if (IS_ERR(dpi->dpi_ck_cg)) {
+ ret = PTR_ERR(dpi->dpi_ck_cg);
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to get dpi ck cg clock: %d\n",
+ ret);
+
+ return ret;
+ }
+
+ dpi->pixel_clk = devm_clk_get_optional(dev, "pixel");
if (IS_ERR(dpi->pixel_clk)) {
ret = PTR_ERR(dpi->pixel_clk);
if (ret != -EPROBE_DEFER)
@@ -1022,7 +1140,7 @@ static int mtk_dpi_probe(struct platform_device *pdev)
return ret;
}

- dpi->tvd_clk = devm_clk_get(dev, "pll");
+ dpi->tvd_clk = devm_clk_get_optional(dev, "pll");
if (IS_ERR(dpi->tvd_clk)) {
ret = PTR_ERR(dpi->tvd_clk);
if (ret != -EPROBE_DEFER)
@@ -1031,6 +1149,14 @@ static int mtk_dpi_probe(struct platform_device *pdev)
return ret;
}

+ dpi->dpi_sel_clk = devm_clk_get_optional(dev, "dpi_sel");
+ if (IS_ERR(dpi->dpi_sel_clk)) {
+ ret = PTR_ERR(dpi->dpi_sel_clk);
+ dev_err_probe(dev, ret, "Failed to get dpi_Sel_clk clock: %d\n", ret);
+
+ return ret;
+ }
+
dpi->irq = platform_get_irq(pdev, 0);
if (dpi->irq <= 0)
return -EINVAL;
@@ -1086,6 +1212,9 @@ static const struct of_device_id mtk_dpi_of_ids[] = {
{ .compatible = "mediatek,mt8195-dp-intf",
.data = &mt8195_dpintf_conf,
},
+ { .compatible = "mediatek,mt8195-dpi",
+ .data = &mt8195_conf,
+ },
{ },
};
MODULE_DEVICE_TABLE(of, mtk_dpi_of_ids);
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
index 62bd4931b344..653ef4b93a97 100644
--- a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
+++ b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h
@@ -43,6 +43,11 @@
#define DPINTF_YUV422_EN BIT(24)
#define DPINTF_CSC_ENABLE BIT(26)
#define DPINTF_INPUT_2P_EN BIT(29)
+#define DPI_OUTPUT_1T1P_EN BIT(24)
+#define DPI_INPUT_2P_EN BIT(25)
+#define DPI_EXT_VSYNC_EN BIT(26)
+#define DPI_RGB565_EN BIT(27)
+#define DPI_RGB880_EN BIT(28)

#define DPI_OUTPUT_SETTING 0x14
#define CH_SWAP 0

--
b4 0.10.0-dev

2022-09-19 17:39:52

[permalink] [raw]

Subject: [PATCH v1 10/17] drm/mediatek: hdmi: add frame_colorimetry flag

Add a flag to indicate support for frame colorimetry.

Signed-off-by: Guillaume Ranquet <[email protected]>

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
index 30407603d693..9fe086e2cd7c 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
@@ -120,6 +120,17 @@ int mtk_hdmi_setup_avi_infoframe(struct mtk_hdmi *hdmi, u8 *buffer, size_t bufsz
return err;
}

+ if (hdmi->conf->has_frame_colorimetry) {
+ frame.colorimetry = hdmi->colorimtery;
+ if (frame.colorimetry == HDMI_COLORIMETRY_EXTENDED)
+ frame.extended_colorimetry = hdmi->extended_colorimetry;
+
+ /* quantiation range:limited or full */
+ if (frame.colorspace == HDMI_COLORSPACE_RGB)
+ frame.quantization_range = hdmi->quantization_range;
+ else
+ frame.ycc_quantization_range = hdmi->ycc_quantization_range;
+ }
err = hdmi_avi_infoframe_pack(&frame, buffer, bufsz);

if (err < 0) {
diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.h b/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
index 62a14435be69..75a9b62dccee 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
@@ -33,6 +33,7 @@ struct mtk_hdmi_conf {
bool cea_modes_only;
bool has_cec;
bool has_connector;
+ bool has_frame_colorimetry;
unsigned long max_mode_clock;
const struct drm_bridge_funcs *bridge_funcs;
void (*mtk_hdmi_output_init)(struct mtk_hdmi *hdmi);

--
b4 0.10.0-dev

2022-09-19 17:42:58

[permalink] [raw]

Subject: [PATCH v1 05/17] drm/mediatek: hdmi: use a syscon/regmap instead of iomem

To prepare support for newer chips that need to share their address
range with a dedicated ddc driver, move to a syscon.

Signed-off-by: Guillaume Ranquet <[email protected]>

diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
index 3196189429bc..5cd05d4fe1a9 100644
--- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
@@ -172,7 +172,7 @@ struct mtk_hdmi {
u32 ibias_up;
struct regmap *sys_regmap;
unsigned int sys_offset;
- void __iomem *regs;
+ struct regmap *regs;
enum hdmi_colorspace csp;
struct hdmi_audio_param aud_param;
bool audio_enable;
@@ -188,44 +188,29 @@ static inline struct mtk_hdmi *hdmi_ctx_from_bridge(struct drm_bridge *b)
return container_of(b, struct mtk_hdmi, bridge);
}

-static u32 mtk_hdmi_read(struct mtk_hdmi *hdmi, u32 offset)
+static int mtk_hdmi_read(struct mtk_hdmi *hdmi, u32 offset, u32 *val)
{
- return readl(hdmi->regs + offset);
+ return regmap_read(hdmi->regs, offset, val);
}

static void mtk_hdmi_write(struct mtk_hdmi *hdmi, u32 offset, u32 val)
{
- writel(val, hdmi->regs + offset);
+ regmap_write(hdmi->regs, offset, val);
}

static void mtk_hdmi_clear_bits(struct mtk_hdmi *hdmi, u32 offset, u32 bits)
{
- void __iomem *reg = hdmi->regs + offset;
- u32 tmp;
-
- tmp = readl(reg);
- tmp &= ~bits;
- writel(tmp, reg);
+ regmap_clear_bits(hdmi->regs, offset, bits);
}

static void mtk_hdmi_set_bits(struct mtk_hdmi *hdmi, u32 offset, u32 bits)
{
- void __iomem *reg = hdmi->regs + offset;
- u32 tmp;
-
- tmp = readl(reg);
- tmp |= bits;
- writel(tmp, reg);
+ regmap_set_bits(hdmi->regs, offset, bits);
}

static void mtk_hdmi_mask(struct mtk_hdmi *hdmi, u32 offset, u32 val, u32 mask)
{
- void __iomem *reg = hdmi->regs + offset;
- u32 tmp;
-
- tmp = readl(reg);
- tmp = (tmp & ~mask) | (val & mask);
- writel(tmp, reg);
+ regmap_update_bits(hdmi->regs, offset, mask, val);
}

static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black)
@@ -474,7 +459,7 @@ static void mtk_hdmi_hw_aud_set_i2s_fmt(struct mtk_hdmi *hdmi,
{
u32 val;

- val = mtk_hdmi_read(hdmi, GRL_CFG0);
+ mtk_hdmi_read(hdmi, GRL_CFG0, &val);
val &= ~(CFG0_W_LENGTH_MASK | CFG0_I2S_MODE_MASK);

switch (i2s_fmt) {
@@ -566,7 +551,7 @@ static void mtk_hdmi_hw_aud_set_input_type(struct mtk_hdmi *hdmi,
{
u32 val;

- val = mtk_hdmi_read(hdmi, GRL_CFG1);
+ mtk_hdmi_read(hdmi, GRL_CFG1, &val);
if (input_type == HDMI_AUD_INPUT_I2S &&
(val & CFG1_SPDIF) == CFG1_SPDIF) {
val &= ~CFG1_SPDIF;
@@ -597,7 +582,7 @@ static void mtk_hdmi_hw_aud_src_reenable(struct mtk_hdmi *hdmi)
{
u32 val;

- val = mtk_hdmi_read(hdmi, GRL_MIX_CTRL);
+ mtk_hdmi_read(hdmi, GRL_MIX_CTRL, &val);
if (val & MIX_CTRL_SRC_EN) {
val &= ~MIX_CTRL_SRC_EN;
mtk_hdmi_write(hdmi, GRL_MIX_CTRL, val);
@@ -611,7 +596,7 @@ static void mtk_hdmi_hw_aud_src_disable(struct mtk_hdmi *hdmi)
{
u32 val;

- val = mtk_hdmi_read(hdmi, GRL_MIX_CTRL);
+ mtk_hdmi_read(hdmi, GRL_MIX_CTRL, &val);
val &= ~MIX_CTRL_SRC_EN;
mtk_hdmi_write(hdmi, GRL_MIX_CTRL, val);
mtk_hdmi_write(hdmi, GRL_SHIFT_L1, 0x00);
@@ -622,7 +607,7 @@ static void mtk_hdmi_hw_aud_set_mclk(struct mtk_hdmi *hdmi,
{
u32 val;

- val = mtk_hdmi_read(hdmi, GRL_CFG5);
+ mtk_hdmi_read(hdmi, GRL_CFG5, &val);
val &= CFG5_CD_RATIO_MASK;

switch (mclk) {
@@ -1428,7 +1413,6 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
struct device_node *cec_np, *remote, *i2c_np;
struct platform_device *cec_pdev;
struct regmap *regmap;
- struct resource *mem;
int ret;

ret = mtk_hdmi_get_all_clk(hdmi, np);
@@ -1474,8 +1458,7 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
}
hdmi->sys_regmap = regmap;

- mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- hdmi->regs = devm_ioremap_resource(dev, mem);
+ hdmi->regs = syscon_node_to_regmap(dev->of_node);
if (IS_ERR(hdmi->regs)) {
ret = PTR_ERR(hdmi->regs);
goto put_device;

--
b4 0.10.0-dev

2022-09-19 18:08:13

[permalink] [raw]

Subject: [PATCH v1 15/17] dt-bindings: display: mediatek: dpi: Add compatible for MediaTek MT8195

Add dt-binding documentation of dpi for MediaTek MT8195 SoC.

Signed-off-by: Guillaume Ranquet <[email protected]>

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
index 5bb23e97cf33..2c7ecef54986 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
@@ -24,6 +24,7 @@ properties:
- mediatek,mt8183-dpi
- mediatek,mt8186-dpi
- mediatek,mt8192-dpi
+ - mediatek,mt8195-dpi
- mediatek,mt8195-dp-intf

reg:

--
b4 0.10.0-dev

2022-09-19 18:09:12

[permalink] [raw]

Subject: [PATCH v1 03/17] dt-bindings: phy: mediatek: hdmi-phy: Add mt8195 compatible

Add a compatible for the HDMI PHY on MT8195

Signed-off-by: Guillaume Ranquet <[email protected]>

diff --git a/Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml b/Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml
index 0d94950b84ca..71c75a11e189 100644
--- a/Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml
+++ b/Documentation/devicetree/bindings/phy/mediatek,hdmi-phy.yaml
@@ -28,6 +28,7 @@ properties:
- const: mediatek,mt2701-hdmi-phy
- const: mediatek,mt2701-hdmi-phy
- const: mediatek,mt8173-hdmi-phy
+ - const: mediatek,mt8195-hdmi-phy

reg:
maxItems: 1

--
b4 0.10.0-dev

2022-09-19 18:09:26

[permalink] [raw]

Subject: [PATCH v1 06/17] dt-bindings: mediatek: set the hdmi to be compatible with syscon

In order to share register with a dedicated ddc driver, set the hdmi
compatible to syscon.

Signed-off-by: Guillaume Ranquet <[email protected]>

diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
index abb231a0694b..86297b7eb7f7 100644
--- a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
+++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
@@ -16,12 +16,14 @@ description: |

properties:
compatible:
- enum:
- - mediatek,mt2701-hdmi
- - mediatek,mt7623-hdmi
- - mediatek,mt8167-hdmi
- - mediatek,mt8173-hdmi
- - mediatek,mt8195-hdmi
+ items:
+ - enum:
+ - mediatek,mt2701-hdmi
+ - mediatek,mt7623-hdmi
+ - mediatek,mt8167-hdmi
+ - mediatek,mt8173-hdmi
+ - const: syscon
+

clocks: true
clock-names: true
@@ -142,7 +144,7 @@ examples:
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/interrupt-controller/irq.h>
hdmi0: hdmi@14025000 {
- compatible = "mediatek,mt8173-hdmi";
+ compatible = "mediatek,mt8173-hdmi", "syscon";
reg = <0x14025000 0x400>;
interrupts = <GIC_SPI 206 IRQ_TYPE_LEVEL_LOW>;
clocks = <&mmsys CLK_MM_HDMI_PIXEL>,
diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
index 7640b5158ff9..3e7a0f406631 100644
--- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
@@ -1306,7 +1306,7 @@ od@14023000 {
};

hdmi0: hdmi@14025000 {
- compatible = "mediatek,mt8173-hdmi";
+ compatible = "mediatek,mt8173-hdmi", "syscon";
reg = <0 0x14025000 0 0x400>;
interrupts = <GIC_SPI 206 IRQ_TYPE_LEVEL_LOW>;
clocks = <&mmsys CLK_MM_HDMI_PIXEL>,

--
b4 0.10.0-dev

2022-09-19 18:09:35

[permalink] [raw]

Subject: [PATCH v1 14/17] phy: mediatek: add support for phy-mtk-hdmi-mt8195

Add basic support for the mediatek hdmi phy on MT8195 SoC

Signed-off-by: Guillaume Ranquet <[email protected]>

diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
index bb7593ea4c86..0157acdce56c 100644
--- a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
+++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
@@ -1344,6 +1344,8 @@ static void mtk_hdmi_bridge_disable(struct drm_bridge *bridge,
mtk_hdmi_disable_hdcp_encrypt(hdmi);
usleep_range(50000, 50050);

+ phy_power_off(hdmi->phy);
+
hdmi->enabled = false;
}

diff --git a/drivers/phy/mediatek/Makefile b/drivers/phy/mediatek/Makefile
index fb1f8edaffa7..c9a50395533e 100644
--- a/drivers/phy/mediatek/Makefile
+++ b/drivers/phy/mediatek/Makefile
@@ -12,6 +12,7 @@ obj-$(CONFIG_PHY_MTK_XSPHY) += phy-mtk-xsphy.o
phy-mtk-hdmi-drv-y := phy-mtk-hdmi.o
phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt2701.o
phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8173.o
+phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8195.o
obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o

phy-mtk-mipi-dsi-drv-y := phy-mtk-mipi-dsi.o
diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
new file mode 100644
index 000000000000..149015b64c02
--- /dev/null
+++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
@@ -0,0 +1,673 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Copyright (c) 2021 BayLibre, SAS
+ */
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+#include <linux/nvmem-consumer.h>
+
+#include "phy-mtk-hdmi.h"
+#include "phy-mtk-hdmi-mt8195.h"
+
+static void mtk_hdmi_ana_fifo_en(struct mtk_hdmi_phy *hdmi_phy)
+{
+ /* make data fifo writable for hdmi2.0 */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_ANA_CTL, REG_ANA_HDMI20_FIFO_EN,
+ REG_ANA_HDMI20_FIFO_EN);
+}
+
+static void
+mtk_mt8195_phy_tmds_high_bit_clk_ratio(struct mtk_hdmi_phy *hdmi_phy,
+ bool enable)
+{
+ mtk_hdmi_ana_fifo_en(hdmi_phy);
+
+ /* HDMI 2.0 specification, 3.4Gbps <= TMDS Bit Rate <= 6G,
+ * clock bit ratio 1:40, under 3.4Gbps, clock bit ratio 1:10
+ */
+ if (enable)
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG,
+ 0x2 << REG_TXC_DIV_SHIFT, REG_TXC_DIV);
+ else
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG, 0, REG_TXC_DIV);
+}
+
+static void mtk_hdmi_pll_select_source(struct clk_hw *hw)
+{
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, 0x0, REG_HDMITX_REF_XTAL_SEL);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, 0x0, REG_HDMITX_REF_RESPLL_SEL);
+
+ /* DA_HDMITX21_REF_CK for TXPLL input source */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, 0x0,
+ RG_HDMITXPLL_REF_CK_SEL);
+}
+
+static int mtk_hdmi_pll_performance_setting(struct clk_hw *hw)
+{
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
+
+ /* BP2 */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
+ 0x1 << RG_HDMITXPLL_BP2_SHIFT, RG_HDMITXPLL_BP2);
+
+ /* BC */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
+ 0x3 << RG_HDMITXPLL_BC_SHIFT, RG_HDMITXPLL_BC);
+
+ /* IC */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
+ 0x1 << RG_HDMITXPLL_IC_SHIFT, RG_HDMITXPLL_IC);
+
+ /* BR */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
+ 0x2 << RG_HDMITXPLL_BR_SHIFT, RG_HDMITXPLL_BR);
+
+ /* IR */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
+ 0x2 << RG_HDMITXPLL_IR_SHIFT, RG_HDMITXPLL_IR);
+
+ /* BP */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
+ 0xf << RG_HDMITXPLL_BP_SHIFT, RG_HDMITXPLL_BP);
+
+ /* IBAND_FIX_EN, RESERVE[14] */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
+ 0x0 << RG_HDMITXPLL_IBAND_FIX_EN_SHIFT,
+ RG_HDMITXPLL_IBAND_FIX_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
+ 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT,
+ RG_HDMITXPLL_RESERVE_BIT14);
+
+ /* HIKVCO */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
+ 0x0 << RG_HDMITXPLL_HIKVCO_SHIFT,
+ RG_HDMITXPLL_HIKVCO);
+
+ /* HREN */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
+ 0x1 << RG_HDMITXPLL_HREN_SHIFT, RG_HDMITXPLL_HREN);
+
+ /* LVR_SEL */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
+ 0x1 << RG_HDMITXPLL_LVR_SEL_SHIFT,
+ RG_HDMITXPLL_LVR_SEL);
+
+ /* RG_HDMITXPLL_RESERVE[12:11] */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
+ 0x3 << RG_HDMITXPLL_RESERVE_BIT12_11_SHIFT,
+ RG_HDMITXPLL_RESERVE_BIT12_11);
+
+ /* TCL_EN */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
+ 0x1 << RG_HDMITXPLL_TCL_EN_SHIFT,
+ RG_HDMITXPLL_TCL_EN);
+
+ return 0;
+}
+
+static int mtk_hdmi_pll_set_hw(struct clk_hw *hw, unsigned char prediv,
+ unsigned char fbkdiv_high,
+ unsigned long fbkdiv_low,
+ unsigned char fbkdiv_hs3, unsigned char posdiv1,
+ unsigned char posdiv2, unsigned char txprediv,
+ unsigned char txposdiv,
+ unsigned char digital_div)
+{
+ unsigned char txposdiv_value = 0;
+ unsigned char div3_ctrl_value = 0;
+ unsigned char posdiv_vallue = 0;
+ unsigned char div_ctrl_value = 0;
+ unsigned char reserve_3_2_value = 0;
+ unsigned char prediv_value = 0;
+ unsigned char reserve13_value = 0;
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
+
+ mtk_hdmi_pll_select_source(hw);
+
+ mtk_hdmi_pll_performance_setting(hw);
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
+ 0x2 << RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT,
+ RG_HDMITX21_BIAS_PE_BG_VREF_SEL);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
+ 0x0 << RG_HDMITX21_VREF_SEL_SHIFT,
+ RG_HDMITX21_VREF_SEL);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_9,
+ 0x2 << RG_HDMITX21_SLDO_VREF_SEL_SHIFT,
+ RG_HDMITX21_SLDO_VREF_SEL);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
+ 0x0 << RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT,
+ RG_HDMITX21_BIAS_PE_VREF_SELB);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
+ 0x1 << RG_HDMITX21_SLDOLPF_EN_SHIFT,
+ RG_HDMITX21_SLDOLPF_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x11 << RG_HDMITX21_INTR_CAL_SHIFT,
+ RG_HDMITX21_INTR_CAL);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
+ 0x1 << RG_HDMITXPLL_PWD_SHIFT, RG_HDMITXPLL_PWD);
+
+ /* TXPOSDIV */
+ if (txposdiv == 1)
+ txposdiv_value = 0x0;
+ else if (txposdiv == 2)
+ txposdiv_value = 0x1;
+ else if (txposdiv == 4)
+ txposdiv_value = 0x2;
+ else if (txposdiv == 8)
+ txposdiv_value = 0x3;
+ else
+ return -EINVAL;
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ txposdiv_value << RG_HDMITX21_TX_POSDIV_SHIFT,
+ RG_HDMITX21_TX_POSDIV);
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT,
+ RG_HDMITX21_TX_POSDIV_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x0 << RG_HDMITX21_FRL_EN_SHIFT, RG_HDMITX21_FRL_EN);
+
+ /* TXPREDIV */
+ if (txprediv == 2) {
+ div3_ctrl_value = 0x0;
+ posdiv_vallue = 0x0;
+ } else if (txprediv == 4) {
+ div3_ctrl_value = 0x0;
+ posdiv_vallue = 0x1;
+ } else if (txprediv == 6) {
+ div3_ctrl_value = 0x1;
+ posdiv_vallue = 0x0;
+ } else if (txprediv == 12) {
+ div3_ctrl_value = 0x1;
+ posdiv_vallue = 0x1;
+ } else {
+ return -EINVAL;
+ }
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
+ div3_ctrl_value
+ << RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT,
+ RG_HDMITXPLL_POSDIV_DIV3_CTRL);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
+ posdiv_vallue << RG_HDMITXPLL_POSDIV_SHIFT,
+ RG_HDMITXPLL_POSDIV);
+
+ /* POSDIV1 */
+ if (posdiv1 == 5)
+ div_ctrl_value = 0x0;
+ else if (posdiv1 == 10)
+ div_ctrl_value = 0x1;
+ else if (posdiv1 == (125 / 10))
+ div_ctrl_value = 0x2;
+ else if (posdiv1 == 15)
+ div_ctrl_value = 0x3;
+ else
+ return -EINVAL;
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
+ div_ctrl_value << RG_HDMITXPLL_DIV_CTRL_SHIFT,
+ RG_HDMITXPLL_DIV_CTRL);
+
+ /* DE add new setting */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
+ 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT,
+ RG_HDMITXPLL_RESERVE_BIT14);
+
+ /* POSDIV2 */
+ if (posdiv2 == 1)
+ reserve_3_2_value = 0x0;
+ else if (posdiv2 == 2)
+ reserve_3_2_value = 0x1;
+ else if (posdiv2 == 4)
+ reserve_3_2_value = 0x2;
+ else if (posdiv2 == 6)
+ reserve_3_2_value = 0x3;
+ else
+ return -EINVAL;
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
+ reserve_3_2_value
+ << RG_HDMITXPLL_RESERVE_BIT3_2_SHIFT,
+ RG_HDMITXPLL_RESERVE_BIT3_2);
+
+ /* DE add new setting */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
+ 0x2 << RG_HDMITXPLL_RESERVE_BIT1_0_SHIFT,
+ RG_HDMITXPLL_RESERVE_BIT1_0);
+
+ /* PREDIV */
+ if (prediv == 1)
+ prediv_value = 0x0;
+ else if (prediv == 2)
+ prediv_value = 0x1;
+ else if (prediv == 4)
+ prediv_value = 0x2;
+ else
+ return -EINVAL;
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
+ prediv_value << RG_HDMITXPLL_PREDIV_SHIFT,
+ RG_HDMITXPLL_PREDIV);
+
+ /* FBKDIV_HS3 */
+ if (fbkdiv_hs3 == 1)
+ reserve13_value = 0x0;
+ else if (fbkdiv_hs3 == 2)
+ reserve13_value = 0x1;
+ else
+ return -EINVAL;
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
+ reserve13_value << RG_HDMITXPLL_RESERVE_BIT13_SHIFT,
+ RG_HDMITXPLL_RESERVE_BIT13);
+
+ /* FBDIV */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
+ fbkdiv_high << RG_HDMITXPLL_FBKDIV_high_SHIFT,
+ RG_HDMITXPLL_FBKDIV_HIGH);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_3,
+ fbkdiv_low << RG_HDMITXPLL_FBKDIV_low_SHIFT,
+ RG_HDMITXPLL_FBKDIV_low);
+
+ /* Digital DIVIDER */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3,
+ 0x0 << REG_PIXEL_CLOCK_SEL_SHIFT,
+ REG_PIXEL_CLOCK_SEL);
+
+ if (digital_div == 1) {
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3,
+ 0x0 << REG_HDMITX_PIXEL_CLOCK_SHIFT,
+ REG_HDMITX_PIXEL_CLOCK);
+ } else {
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3,
+ 0x1 << REG_HDMITX_PIXEL_CLOCK_SHIFT,
+ REG_HDMITX_PIXEL_CLOCK);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3,
+ (digital_div - 1) << REG_HDMITXPLL_DIV_SHIFT,
+ REG_HDMITXPLL_DIV);
+ }
+
+ return 0;
+}
+
+#define PCW_DECIMAL_WIDTH 24
+
+static int mtk_hdmi_pll_calculate_params(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ int ret;
+ unsigned long long tmds_clk = 0;
+ unsigned long long pixel_clk = 0;
+ //pll input source frequency
+ unsigned long long da_hdmitx21_ref_ck = 0;
+ unsigned long long ns_hdmipll_ck = 0; //ICO output clk
+ //source clk for Display digital
+ unsigned long long ad_hdmipll_pixel_ck = 0;
+ unsigned char digital_div = 0;
+ unsigned long long pcw = 0; //FBDIV
+ unsigned char txprediv = 0;
+ unsigned char txposdiv = 0;
+ unsigned char fbkdiv_high = 0;
+ unsigned long fbkdiv_low = 0;
+ unsigned char posdiv1 = 0;
+ unsigned char posdiv2 = 0;
+ unsigned char prediv = 1; //prediv is always 1
+ unsigned char fbkdiv_hs3 = 1; //fbkdiv_hs3 is always 1
+ int i = 0;
+ unsigned char txpredivs[4] = { 2, 4, 6, 12 };
+
+ pixel_clk = rate;
+ tmds_clk = pixel_clk;
+
+ if (tmds_clk < 25000000 || tmds_clk > 594000000)
+ return -EINVAL;
+
+ da_hdmitx21_ref_ck = 26000000UL; //in HZ
+
+ /* TXPOSDIV stage treatment:
+ * 0M < TMDS clk < 54M /8
+ * 54M <= TMDS clk < 148.35M /4
+ * 148.35M <=TMDS clk < 296.7M /2
+ * 296.7 <=TMDS clk <= 594M /1
+ */
+ if (tmds_clk < 54000000UL)
+ txposdiv = 8;
+ else if (tmds_clk >= 54000000UL && tmds_clk < 148350000UL)
+ txposdiv = 4;
+ else if (tmds_clk >= 148350000UL && tmds_clk < 296700000UL)
+ txposdiv = 2;
+ else if (tmds_clk >= 296700000UL && tmds_clk <= 594000000UL)
+ txposdiv = 1;
+ else
+ return -EINVAL;
+
+ /* calculate txprediv: can be 2, 4, 6, 12
+ * ICO clk = 5*TMDS_CLK*TXPOSDIV*TXPREDIV
+ * ICO clk constraint: 5G =< ICO clk <= 12G
+ */
+ for (i = 0; i < ARRAY_SIZE(txpredivs); i++) {
+ ns_hdmipll_ck = 5 * tmds_clk * txposdiv * txpredivs[i];
+ if (ns_hdmipll_ck >= 5000000000UL &&
+ ns_hdmipll_ck <= 12000000000UL)
+ break;
+ }
+ if (i == (ARRAY_SIZE(txpredivs) - 1) &&
+ (ns_hdmipll_ck < 5000000000UL || ns_hdmipll_ck > 12000000000UL)) {
+ return -EINVAL;
+ }
+ if (i == ARRAY_SIZE(txpredivs))
+ return -EINVAL;
+
+ txprediv = txpredivs[i];
+
+ /* PCW calculation: FBKDIV
+ * formula: pcw=(frequency_out*2^pcw_bit) / frequency_in / FBKDIV_HS3;
+ * RG_HDMITXPLL_FBKDIV[32:0]:
+ * [32,24] 9bit integer, [23,0]:24bit fraction
+ */
+ pcw = ns_hdmipll_ck;
+ pcw = pcw << PCW_DECIMAL_WIDTH;
+ pcw = pcw / da_hdmitx21_ref_ck;
+ pcw = pcw / fbkdiv_hs3;
+
+ if ((pcw / BIT(32)) > 1) {
+ return -EINVAL;
+ } else if ((pcw / BIT(32)) == 1) {
+ fbkdiv_high = 1;
+ fbkdiv_low = pcw % BIT(32);
+ } else {
+ fbkdiv_high = 0;
+ fbkdiv_low = pcw;
+ }
+
+ /* posdiv1:
+ * posdiv1 stage treatment according to color_depth:
+ * 24bit -> posdiv1 /10, 30bit -> posdiv1 /12.5,
+ * 36bit -> posdiv1 /15, 48bit -> posdiv1 /10
+ */
+ posdiv1 = 10; // div 10
+ posdiv2 = 1;
+ ad_hdmipll_pixel_ck = (ns_hdmipll_ck / 10) / 1;
+
+ /* Digital clk divider, max /32 */
+ digital_div = ad_hdmipll_pixel_ck / pixel_clk;
+ if (!(digital_div <= 32 && digital_div >= 1))
+ return -EINVAL;
+
+ ret = mtk_hdmi_pll_set_hw(hw, prediv, fbkdiv_high, fbkdiv_low,
+ fbkdiv_hs3, posdiv1, posdiv2, txprediv,
+ txposdiv, digital_div);
+ if (ret)
+ return -EINVAL;
+
+ return 0;
+}
+
+static int mtk_hdmi_pll_drv_setting(struct clk_hw *hw)
+{
+ unsigned char data_channel_bias, clk_channel_bias;
+ unsigned char impedance, impedance_en;
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
+ unsigned long tmds_clk;
+ unsigned long pixel_clk = hdmi_phy->pll_rate;
+
+ tmds_clk = pixel_clk;
+
+ /* bias & impedance setting:
+ * 3G < data rate <= 6G: enable impedance 100ohm,
+ * data channel bias 24mA, clock channel bias 20mA
+ * pixel clk >= HD, 74.175MHZ <= pixel clk <= 300MHZ:
+ * enalbe impedance 100ohm
+ * data channel 20mA, clock channel 16mA
+ * 27M =< pixel clk < 74.175: disable impedance
+ * data channel & clock channel bias 10mA
+ */
+
+ /* 3G < data rate <= 6G, 300M < tmds rate <= 594M */
+ if (tmds_clk > 300000000UL && tmds_clk <= 594000000UL) {
+ data_channel_bias = 0x3c; //24mA
+ clk_channel_bias = 0x34; //20mA
+ impedance_en = 0xf;
+ impedance = 0x36; //100ohm
+ } else if (pixel_clk >= 74175000UL && pixel_clk <= 300000000UL) {
+ data_channel_bias = 0x34; //20mA
+ clk_channel_bias = 0x2c; //16mA
+ impedance_en = 0xf;
+ impedance = 0x36; //100ohm
+ } else if (pixel_clk >= 27000000UL && pixel_clk < 74175000UL) {
+ data_channel_bias = 0x14; //10mA
+ clk_channel_bias = 0x14; //10mA
+ impedance_en = 0x0;
+ impedance = 0x0;
+ } else {
+ return -EINVAL;
+ }
+
+ /* bias */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1,
+ data_channel_bias << RG_HDMITX21_DRV_IBIAS_D0_SHIFT,
+ RG_HDMITX21_DRV_IBIAS_D0);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1,
+ data_channel_bias << RG_HDMITX21_DRV_IBIAS_D1_SHIFT,
+ RG_HDMITX21_DRV_IBIAS_D1);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1,
+ data_channel_bias << RG_HDMITX21_DRV_IBIAS_D2_SHIFT,
+ RG_HDMITX21_DRV_IBIAS_D2);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
+ clk_channel_bias << RG_HDMITX21_DRV_IBIAS_CLK_SHIFT,
+ RG_HDMITX21_DRV_IBIAS_CLK);
+
+ /* impedance */
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
+ impedance_en << RG_HDMITX21_DRV_IMP_EN_SHIFT,
+ RG_HDMITX21_DRV_IMP_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2,
+ impedance << RG_HDMITX21_DRV_IMP_D0_EN1_SHIFT,
+ RG_HDMITX21_DRV_IMP_D0_EN1);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2,
+ impedance << RG_HDMITX21_DRV_IMP_D1_EN1_SHIFT,
+ RG_HDMITX21_DRV_IMP_D1_EN1);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2,
+ impedance << RG_HDMITX21_DRV_IMP_D2_EN1_SHIFT,
+ RG_HDMITX21_DRV_IMP_D2_EN1);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2,
+ impedance << RG_HDMITX21_DRV_IMP_CLK_EN1_SHIFT,
+ RG_HDMITX21_DRV_IMP_CLK_EN1);
+
+ return 0;
+}
+
+static int mtk_hdmi_pll_prepare(struct clk_hw *hw)
+{
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT,
+ RG_HDMITX21_TX_POSDIV_EN);
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
+ 0xf << RG_HDMITX21_SER_EN_SHIFT, RG_HDMITX21_SER_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x1 << RG_HDMITX21_D0_DRV_OP_EN_SHIFT,
+ RG_HDMITX21_D0_DRV_OP_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x1 << RG_HDMITX21_D1_DRV_OP_EN_SHIFT,
+ RG_HDMITX21_D1_DRV_OP_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x1 << RG_HDMITX21_D2_DRV_OP_EN_SHIFT,
+ RG_HDMITX21_D2_DRV_OP_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x1 << RG_HDMITX21_CK_DRV_OP_EN_SHIFT,
+ RG_HDMITX21_CK_DRV_OP_EN);
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x0 << RG_HDMITX21_FRL_D0_EN_SHIFT,
+ RG_HDMITX21_FRL_D0_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x0 << RG_HDMITX21_FRL_D1_EN_SHIFT,
+ RG_HDMITX21_FRL_D1_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x0 << RG_HDMITX21_FRL_D2_EN_SHIFT,
+ RG_HDMITX21_FRL_D2_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x0 << RG_HDMITX21_FRL_CK_EN_SHIFT,
+ RG_HDMITX21_FRL_CK_EN);
+
+ mtk_hdmi_pll_drv_setting(hw);
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
+ 0x0 << RG_HDMITX21_BG_PWD_SHIFT, RG_HDMITX21_BG_PWD);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x1 << RG_HDMITX21_BIAS_EN_SHIFT,
+ RG_HDMITX21_BIAS_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
+ 0x1 << RG_HDMITX21_CKLDO_EN_SHIFT,
+ RG_HDMITX21_CKLDO_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
+ 0xf << RG_HDMITX21_SLDO_EN_SHIFT,
+ RG_HDMITX21_SLDO_EN);
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
+ 0x1 << DA_HDMITXPLL_PWR_ON_SHIFT,
+ DA_HDMITXPLL_PWR_ON);
+ usleep_range(5, 10);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
+ 0x0 << DA_HDMITXPLL_ISO_EN_SHIFT,
+ DA_HDMITXPLL_ISO_EN);
+ usleep_range(5, 10);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
+ 0x0 << RG_HDMITXPLL_PWD_SHIFT, RG_HDMITXPLL_PWD);
+ usleep_range(30, 50);
+ return 0;
+}
+
+static void mtk_hdmi_pll_unprepare(struct clk_hw *hw)
+{
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
+ 0x1 << RG_HDMITX21_BG_PWD_SHIFT, RG_HDMITX21_BG_PWD);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
+ 0x0 << RG_HDMITX21_BIAS_EN_SHIFT,
+ RG_HDMITX21_BIAS_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
+ 0x0 << RG_HDMITX21_CKLDO_EN_SHIFT,
+ RG_HDMITX21_CKLDO_EN);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
+ 0x0 << RG_HDMITX21_SLDO_EN_SHIFT,
+ RG_HDMITX21_SLDO_EN);
+
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
+ 0x1 << RG_HDMITXPLL_PWD_SHIFT, RG_HDMITXPLL_PWD);
+ usleep_range(10, 20);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
+ 0x1 << DA_HDMITXPLL_ISO_EN_SHIFT,
+ DA_HDMITXPLL_ISO_EN);
+ usleep_range(10, 20);
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
+ 0x0 << DA_HDMITXPLL_PWR_ON_SHIFT,
+ DA_HDMITXPLL_PWR_ON);
+}
+
+static int mtk_hdmi_pll_set_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long parent_rate)
+{
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
+ int ret;
+
+ dev_dbg(hdmi_phy->dev, "%s: %lu Hz, parent: %lu Hz\n", __func__, rate,
+ parent_rate);
+
+ ret = mtk_hdmi_pll_calculate_params(hw, rate, parent_rate);
+ if (ret != 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+static long mtk_hdmi_pll_round_rate(struct clk_hw *hw, unsigned long rate,
+ unsigned long *parent_rate)
+{
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
+
+ hdmi_phy->pll_rate = rate;
+ return rate;
+}
+
+static unsigned long mtk_hdmi_pll_recalc_rate(struct clk_hw *hw,
+ unsigned long parent_rate)
+{
+ struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
+
+ return hdmi_phy->pll_rate;
+}
+
+static const struct clk_ops mtk_hdmi_pll_ops = {
+ .prepare = mtk_hdmi_pll_prepare,
+ .unprepare = mtk_hdmi_pll_unprepare,
+ .set_rate = mtk_hdmi_pll_set_rate,
+ .round_rate = mtk_hdmi_pll_round_rate,
+ .recalc_rate = mtk_hdmi_pll_recalc_rate,
+};
+
+static void vtx_signal_en(struct mtk_hdmi_phy *hdmi_phy, bool on)
+{
+ if (on)
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0, RG_HDMITX21_DRV_EN,
+ RG_HDMITX21_DRV_EN);
+ else
+ mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
+ 0x0 << RG_HDMITX21_DRV_EN_SHIFT,
+ RG_HDMITX21_DRV_EN);
+}
+
+static void mtk_hdmi_phy_enable_tmds(struct mtk_hdmi_phy *hdmi_phy)
+{
+ vtx_signal_en(hdmi_phy, true);
+ usleep_range(100, 150);
+}
+
+static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy)
+{
+ vtx_signal_en(hdmi_phy, false);
+}
+
+static int mtk_hdmi_phy_configure(struct phy *phy, union phy_configure_opts *opts)
+{
+ struct phy_configure_opts_dp *dp_opts = &opts->dp;
+ struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);
+ int ret = 0;
+ bool enable = 0;
+
+ ret = clk_set_rate(hdmi_phy->pll, dp_opts->link_rate);
+
+ if (ret)
+ goto out;
+
+ mtk_mt8195_phy_tmds_high_bit_clk_ratio(hdmi_phy, enable);
+
+out:
+ return ret;
+}
+
+struct mtk_hdmi_phy_conf mtk_hdmi_phy_8195_conf = {
+ .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE,
+ .hdmi_phy_clk_ops = &mtk_hdmi_pll_ops,
+ .hdmi_phy_enable_tmds = mtk_hdmi_phy_enable_tmds,
+ .hdmi_phy_disable_tmds = mtk_hdmi_phy_disable_tmds,
+ .hdmi_phy_configure = mtk_hdmi_phy_configure,
+};
+
+MODULE_AUTHOR("Can Zeng <[email protected]>");
+MODULE_DESCRIPTION("MediaTek MT8195 HDMI PHY Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h
new file mode 100644
index 000000000000..3cc51d8a18a4
--- /dev/null
+++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h
@@ -0,0 +1,204 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Copyright (c) 2021 BayLibre, SAS
+ */
+
+#ifndef _MTK_HDMI_PHY_8195_H
+#define _MTK_HDMI_PHY_8195_H
+
+#include <linux/types.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+
+#define DA_HDMITXPLL_ISO_EN BIT(1)
+#define DA_HDMITXPLL_ISO_EN_SHIFT (1)
+#define DA_HDMITXPLL_PWR_ON BIT(2)
+#define DA_HDMITXPLL_PWR_ON_SHIFT (2)
+
+#define HDMI20_CLK_CFG 0x70
+
+#define HDMI_1_CFG_0 0x00
+#define HDMI_1_CFG_1 0x04
+#define HDMI_1_CFG_10 0x40
+#define HDMI_1_CFG_2 0x08
+#define HDMI_1_CFG_21 0x84
+#define HDMI_1_CFG_22 0x88
+#define HDMI_1_CFG_3 0x0c
+#define HDMI_1_CFG_6 0x18
+#define HDMI_1_CFG_9 0x24
+#define HDMI_1_PLL_CFG_0 0x44
+#define HDMI_1_PLL_CFG_1 0x48
+#define HDMI_1_PLL_CFG_2 0x4c
+#define HDMI_1_PLL_CFG_3 0x50
+#define HDMI_1_PLL_CFG_4 0x54
+
+#define HDMI_ANA_CTL 0x7c
+
+#define HDMI_CTL_1 0xc4
+#define HDMI_CTL_3 0xcc
+
+#define REG_ANA_HDMI20_FIFO_EN BIT(16)
+
+#define REG_HDMITXPLL_DIV GENMASK(4, 0)
+#define REG_HDMITXPLL_DIV_SHIFT (0)
+#define REG_HDMITX_PIXEL_CLOCK BIT(23)
+#define REG_HDMITX_PIXEL_CLOCK_SHIFT (23)
+#define REG_HDMITX_REF_RESPLL_SEL BIT(9)
+#define REG_HDMITX_REF_RESPLL_SEL_SHIFT (9)
+#define REG_HDMITX_REF_XTAL_SEL BIT(7)
+#define REG_HDMITX_REF_XTAL_SEL_SHIFT (7)
+
+#define REG_PIXEL_CLOCK_SEL BIT(10)
+#define REG_PIXEL_CLOCK_SEL_SHIFT (10)
+
+#define REG_TXC_DIV GENMASK(31, 30)
+#define REG_TXC_DIV_SHIFT (30)
+
+#define RG_HDMITX21_BG_PWD BIT(20)
+#define RG_HDMITX21_BG_PWD_SHIFT (20)
+
+#define RG_HDMITX21_BIAS_EN BIT(29)
+#define RG_HDMITX21_BIAS_EN_SHIFT (29)
+#define RG_HDMITX21_BIAS_PE_BG_VREF_SEL GENMASK(16, 15)
+#define RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT (15)
+#define RG_HDMITX21_BIAS_PE_VREF_SELB GENMASK(10, 10)
+#define RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT (10)
+
+#define RG_HDMITX21_CKLDO_EN BIT(3)
+#define RG_HDMITX21_CKLDO_EN_SHIFT (3)
+
+#define RG_HDMITX21_CK_DRV_OP_EN BIT(11)
+#define RG_HDMITX21_CK_DRV_OP_EN_SHIFT (11)
+
+#define RG_HDMITX21_D0_DRV_OP_EN BIT(10)
+#define RG_HDMITX21_D0_DRV_OP_EN_SHIFT (10)
+
+#define RG_HDMITX21_D1_DRV_OP_EN BIT(9)
+#define RG_HDMITX21_D1_DRV_OP_EN_SHIFT (9)
+
+#define RG_HDMITX21_D2_DRV_OP_EN BIT(8)
+#define RG_HDMITX21_D2_DRV_OP_EN_SHIFT (8)
+
+#define RG_HDMITX21_DRV_EN GENMASK(27, 24)
+#define RG_HDMITX21_DRV_EN_SHIFT (24)
+#define RG_HDMITX21_DRV_IBIAS_CLK GENMASK(10, 5)
+#define RG_HDMITX21_DRV_IBIAS_CLK_SHIFT (5)
+#define RG_HDMITX21_DRV_IBIAS_D0 GENMASK(19, 14)
+#define RG_HDMITX21_DRV_IBIAS_D0_FFE1 GENMASK(21, 17)
+#define RG_HDMITX21_DRV_IBIAS_D0_FFE1_SHIFT (17)
+#define RG_HDMITX21_DRV_IBIAS_D0_FFE2 GENMASK(23, 20)
+#define RG_HDMITX21_DRV_IBIAS_D0_FFE2_SHIFT (20)
+#define RG_HDMITX21_DRV_IBIAS_D0_SHIFT (14)
+#define RG_HDMITX21_DRV_IBIAS_D1 GENMASK(25, 20)
+#define RG_HDMITX21_DRV_IBIAS_D1_FFE1 GENMASK(26, 22)
+#define RG_HDMITX21_DRV_IBIAS_D1_FFE1_SHIFT (22)
+#define RG_HDMITX21_DRV_IBIAS_D1_FFE2 GENMASK(27, 24)
+#define RG_HDMITX21_DRV_IBIAS_D1_FFE2_SHIFT (24)
+#define RG_HDMITX21_DRV_IBIAS_D1_SHIFT (20)
+#define RG_HDMITX21_DRV_IBIAS_D2 GENMASK(31, 26)
+#define RG_HDMITX21_DRV_IBIAS_D2_FFE1 GENMASK(31, 27)
+#define RG_HDMITX21_DRV_IBIAS_D2_FFE1_SHIFT (27)
+#define RG_HDMITX21_DRV_IBIAS_D2_FFE2 GENMASK(31, 28)
+#define RG_HDMITX21_DRV_IBIAS_D2_FFE2_SHIFT (28)
+#define RG_HDMITX21_DRV_IBIAS_D2_SHIFT (26)
+#define RG_HDMITX21_DRV_IMP_CLK_EN1 GENMASK(31, 26)
+#define RG_HDMITX21_DRV_IMP_CLK_EN1_SHIFT (26)
+#define RG_HDMITX21_DRV_IMP_D0_EN1 GENMASK(13, 8)
+#define RG_HDMITX21_DRV_IMP_D0_EN1_SHIFT (8)
+#define RG_HDMITX21_DRV_IMP_D1_EN1 GENMASK(19, 14)
+#define RG_HDMITX21_DRV_IMP_D1_EN1_SHIFT (14)
+#define RG_HDMITX21_DRV_IMP_D2_EN1 GENMASK(25, 20)
+#define RG_HDMITX21_DRV_IMP_D2_EN1_SHIFT (20)
+#define RG_HDMITX21_DRV_IMP_EN GENMASK(23, 20)
+#define RG_HDMITX21_DRV_IMP_EN_SHIFT (20)
+
+#define RG_HDMITX21_FRL_CK_EN BIT(13)
+#define RG_HDMITX21_FRL_CK_EN_SHIFT (13)
+#define RG_HDMITX21_FRL_D0_EN BIT(14)
+#define RG_HDMITX21_FRL_D0_EN_SHIFT (14)
+#define RG_HDMITX21_FRL_D1_EN BIT(15)
+#define RG_HDMITX21_FRL_D1_EN_SHIFT (15)
+#define RG_HDMITX21_FRL_D2_EN BIT(16)
+#define RG_HDMITX21_FRL_D2_EN_SHIFT (16)
+#define RG_HDMITX21_FRL_EN BIT(12)
+#define RG_HDMITX21_FRL_EN_SHIFT (12)
+
+#define RG_HDMITX21_INTR_CAL GENMASK(22, 18)
+#define RG_HDMITX21_INTR_CAL_READOUT GENMASK(22, 18)
+#define RG_HDMITX21_INTR_CAL_READOUT_SHIFT (18)
+#define RG_HDMITX21_INTR_CAL_SHIFT (18)
+
+#define RG_HDMITX21_SER_EN GENMASK(31, 28)
+#define RG_HDMITX21_SER_EN_SHIFT (28)
+
+#define RG_HDMITX21_SLDOLPF_EN BIT(7)
+#define RG_HDMITX21_SLDOLPF_EN_SHIFT (7)
+#define RG_HDMITX21_SLDO_EN GENMASK(11, 8)
+#define RG_HDMITX21_SLDO_EN_SHIFT (8)
+#define RG_HDMITX21_SLDO_VREF_SEL GENMASK(5, 4)
+#define RG_HDMITX21_SLDO_VREF_SEL_SHIFT (4)
+
+#define RG_HDMITX21_TX_POSDIV GENMASK(27, 26)
+#define RG_HDMITX21_TX_POSDIV_EN GENMASK(28, 28)
+#define RG_HDMITX21_TX_POSDIV_EN_SHIFT (28)
+#define RG_HDMITX21_TX_POSDIV_SHIFT (26)
+
+#define RG_HDMITX21_VREF_SEL BIT(4)
+#define RG_HDMITX21_VREF_SEL_SHIFT (4)
+
+#define RG_HDMITXPLL_BC GENMASK(28, 27)
+#define RG_HDMITXPLL_BC_SHIFT (27)
+#define RG_HDMITXPLL_BP GENMASK(13, 10)
+#define RG_HDMITXPLL_BP2 BIT(30)
+#define RG_HDMITXPLL_BP2_SHIFT (30)
+#define RG_HDMITXPLL_BP_SHIFT (10)
+#define RG_HDMITXPLL_BR GENMASK(21, 19)
+#define RG_HDMITXPLL_BR_SHIFT (19)
+#define RG_HDMITXPLL_DIV_CTRL GENMASK(25, 24)
+#define RG_HDMITXPLL_DIV_CTRL_SHIFT (24)
+#define RG_HDMITXPLL_FBKDIV_HIGH BIT(31)
+#define RG_HDMITXPLL_FBKDIV_high_SHIFT (31)
+#define RG_HDMITXPLL_FBKDIV_low (0xffffffff)
+#define RG_HDMITXPLL_FBKDIV_low_SHIFT (0)
+#define RG_HDMITXPLL_HIKVCO GENMASK(29, 29)
+#define RG_HDMITXPLL_HIKVCO_SHIFT (29)
+#define RG_HDMITXPLL_HREN GENMASK(13, 12)
+#define RG_HDMITXPLL_HREN_SHIFT (12)
+#define RG_HDMITXPLL_IBAND_FIX_EN GENMASK(24, 24)
+#define RG_HDMITXPLL_IBAND_FIX_EN_SHIFT (24)
+#define RG_HDMITXPLL_IC GENMASK(26, 22)
+#define RG_HDMITXPLL_IC_SHIFT (22)
+#define RG_HDMITXPLL_IR GENMASK(18, 14)
+#define RG_HDMITXPLL_IR_SHIFT (14)
+#define RG_HDMITXPLL_LVR_SEL GENMASK(27, 26)
+#define RG_HDMITXPLL_LVR_SEL_SHIFT (26)
+#define RG_HDMITXPLL_POSDIV GENMASK(23, 22)
+#define RG_HDMITXPLL_POSDIV_DIV3_CTRL BIT(21)
+#define RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT (21)
+#define RG_HDMITXPLL_POSDIV_SHIFT (22)
+#define RG_HDMITXPLL_PREDIV GENMASK(29, 28)
+#define RG_HDMITXPLL_PREDIV_SHIFT (28)
+#define RG_HDMITXPLL_PWD BIT(31)
+#define RG_HDMITXPLL_PWD_SHIFT (31)
+#define RG_HDMITXPLL_REF_CK_SEL GENMASK(2, 1)
+#define RG_HDMITXPLL_REF_CK_SEL_SHIFT (1)
+#define RG_HDMITXPLL_RESERVE GENMASK(15, 0)
+#define RG_HDMITXPLL_RESERVE_BIT12_11 GENMASK(12, 11)
+#define RG_HDMITXPLL_RESERVE_BIT12_11_SHIFT (11)
+#define RG_HDMITXPLL_RESERVE_BIT13 BIT(13)
+#define RG_HDMITXPLL_RESERVE_BIT13_SHIFT (13)
+#define RG_HDMITXPLL_RESERVE_BIT14 BIT(14)
+#define RG_HDMITXPLL_RESERVE_BIT14_SHIFT (14)
+#define RG_HDMITXPLL_RESERVE_BIT1_0 GENMASK(1, 0)
+#define RG_HDMITXPLL_RESERVE_BIT1_0_SHIFT (0)
+#define RG_HDMITXPLL_RESERVE_BIT3_2 GENMASK(3, 2)
+#define RG_HDMITXPLL_RESERVE_BIT3_2_SHIFT (2)
+#define RG_HDMITXPLL_RESERVE_SHIFT (0)
+#define RG_HDMITXPLL_TCL_EN BIT(31)
+#define RG_HDMITXPLL_TCL_EN_SHIFT (31)
+
+#define RG_INTR_IMP_RG_MODE GENMASK(7, 3)
+#define RG_INTR_IMP_RG_MODE_SHIFT (3)
+
+#endif /* MTK_HDMI_PHY_8195_H */
diff --git a/drivers/phy/mediatek/phy-mtk-hdmi.c b/drivers/phy/mediatek/phy-mtk-hdmi.c
index af46472237e0..3fb60ab53668 100644
--- a/drivers/phy/mediatek/phy-mtk-hdmi.c
+++ b/drivers/phy/mediatek/phy-mtk-hdmi.c
@@ -194,6 +194,9 @@ static const struct of_device_id mtk_hdmi_phy_match[] = {
{ .compatible = "mediatek,mt8173-hdmi-phy",
.data = &mtk_hdmi_phy_8173_conf,
},
+ { .compatible = "mediatek,mt8195-hdmi-phy",
+ .data = &mtk_hdmi_phy_8195_conf,
+ },
{},
};
MODULE_DEVICE_TABLE(of, mtk_hdmi_phy_match);
diff --git a/drivers/phy/mediatek/phy-mtk-hdmi.h b/drivers/phy/mediatek/phy-mtk-hdmi.h
index 05de93f63a61..9d6399be71e9 100644
--- a/drivers/phy/mediatek/phy-mtk-hdmi.h
+++ b/drivers/phy/mediatek/phy-mtk-hdmi.h
@@ -51,6 +51,7 @@ void mtk_hdmi_phy_mask(struct mtk_hdmi_phy *hdmi_phy, u32 offset,
u32 val, u32 mask);
struct mtk_hdmi_phy *to_mtk_hdmi_phy(struct clk_hw *hw);

+extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_8195_conf;
extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_8173_conf;
extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf;

--
b4 0.10.0-dev

2022-09-19 18:10:42

[permalink] [raw]

Subject: [PATCH v1 01/17] dt-bindings: clk: mediatek: Add MT8195 DPI clocks

From: Pablo Sun <[email protected]>

Expand dt-bindings slot for VDOSYS1 of MT8195.
This clock is required by the DPI1 hardware
and is a downstream of the HDMI pixel clock.

Signed-off-by: Pablo Sun <[email protected]>
Signed-off-by: Guillaume Ranquet <[email protected]>
Reviewed-by: Mattijs Korpershoek <[email protected]>

diff --git a/include/dt-bindings/clock/mt8195-clk.h b/include/dt-bindings/clock/mt8195-clk.h
index 95cf812a0b37..d70d017ad69c 100644
--- a/include/dt-bindings/clock/mt8195-clk.h
+++ b/include/dt-bindings/clock/mt8195-clk.h
@@ -859,6 +859,8 @@
#define CLK_VDO1_DPINTF 47
#define CLK_VDO1_DISP_MONITOR_DPINTF 48
#define CLK_VDO1_26M_SLOW 49
-#define CLK_VDO1_NR_CLK 50
+#define CLK_VDO1_DPI1_HDMI 50
+#define CLK_VDO1_NR_CLK 51
+

#endif /* _DT_BINDINGS_CLK_MT8195_H */

--
b4 0.10.0-dev

2022-09-20 08:03:04

by Chunfeng Yun

[permalink] [raw]

Subject: Re: [PATCH v1 14/17] phy: mediatek: add support for phy-mtk-hdmi-mt8195

On Mon, 2022-09-19 at 18:56 +0200, Guillaume Ranquet wrote:
> Add basic support for the mediatek hdmi phy on MT8195 SoC
>
> Signed-off-by: Guillaume Ranquet <[email protected]>
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> index bb7593ea4c86..0157acdce56c 100644
> --- a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> @@ -1344,6 +1344,8 @@ static void mtk_hdmi_bridge_disable(struct
> drm_bridge *bridge,
> mtk_hdmi_disable_hdcp_encrypt(hdmi);
> usleep_range(50000, 50050);
>
> + phy_power_off(hdmi->phy);
> +
> hdmi->enabled = false;
> }
>
> diff --git a/drivers/phy/mediatek/Makefile
> b/drivers/phy/mediatek/Makefile
> index fb1f8edaffa7..c9a50395533e 100644
> --- a/drivers/phy/mediatek/Makefile
> +++ b/drivers/phy/mediatek/Makefile
> @@ -12,6 +12,7 @@ obj-$(CONFIG_PHY_MTK_XSPHY) += phy-mtk-
> xsphy.o
> phy-mtk-hdmi-drv-y := phy-mtk-hdmi.o
> phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt2701.o
> phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8173.o
> +phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8195.o
> obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o
>
> phy-mtk-mipi-dsi-drv-y := phy-mtk-mipi-dsi.o
> diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
> b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
> new file mode 100644
> index 000000000000..149015b64c02
> --- /dev/null
> +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
> @@ -0,0 +1,673 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2021 MediaTek Inc.
> + * Copyright (c) 2021 BayLibre, SAS
> + */
> +#include <linux/delay.h>
> +#include <linux/io.h>
> +#include <linux/mfd/syscon.h>
> +#include <linux/module.h>
> +#include <linux/phy/phy.h>
> +#include <linux/platform_device.h>
> +#include <linux/types.h>
> +#include <linux/nvmem-consumer.h>
> +
> +#include "phy-mtk-hdmi.h"
> +#include "phy-mtk-hdmi-mt8195.h"
> +
> +static void mtk_hdmi_ana_fifo_en(struct mtk_hdmi_phy *hdmi_phy)
> +{
> + /* make data fifo writable for hdmi2.0 */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_ANA_CTL,
> REG_ANA_HDMI20_FIFO_EN,
> + REG_ANA_HDMI20_FIFO_EN);
> +}
> +
> +static void
> +mtk_mt8195_phy_tmds_high_bit_clk_ratio(struct mtk_hdmi_phy
> *hdmi_phy,
> + bool enable)
> +{
> + mtk_hdmi_ana_fifo_en(hdmi_phy);
> +
> + /* HDMI 2.0 specification, 3.4Gbps <= TMDS Bit Rate <= 6G,
> + * clock bit ratio 1:40, under 3.4Gbps, clock bit ratio 1:10
> + */
> + if (enable)
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG,
> + 0x2 << REG_TXC_DIV_SHIFT,
Use FIELD_PREP() macro, then no need define REG_TXC_DIV_SHIFT anymore.

> REG_TXC_DIV);
> + else
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG, 0,
> REG_TXC_DIV);
> +}
> +
> +static void mtk_hdmi_pll_select_source(struct clk_hw *hw)
> +{
> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, 0x0,
> REG_HDMITX_REF_XTAL_SEL);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, 0x0,
> REG_HDMITX_REF_RESPLL_SEL);
> +
> + /* DA_HDMITX21_REF_CK for TXPLL input source */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, 0x0,
> + RG_HDMITXPLL_REF_CK_SEL);
> +}
> +
> +static int mtk_hdmi_pll_performance_setting(struct clk_hw *hw)
> +{
> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
> +
> + /* BP2 */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
> + 0x1 << RG_HDMITXPLL_BP2_SHIFT,
> RG_HDMITXPLL_BP2);
> +
> + /* BC */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
> + 0x3 << RG_HDMITXPLL_BC_SHIFT,
> RG_HDMITXPLL_BC);
> +
> + /* IC */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
> + 0x1 << RG_HDMITXPLL_IC_SHIFT,
> RG_HDMITXPLL_IC);
> +
> + /* BR */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
> + 0x2 << RG_HDMITXPLL_BR_SHIFT,
> RG_HDMITXPLL_BR);
> +
> + /* IR */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
> + 0x2 << RG_HDMITXPLL_IR_SHIFT,
> RG_HDMITXPLL_IR);
> +
> + /* BP */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
> + 0xf << RG_HDMITXPLL_BP_SHIFT,
> RG_HDMITXPLL_BP);
> +
> + /* IBAND_FIX_EN, RESERVE[14] */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
> + 0x0 << RG_HDMITXPLL_IBAND_FIX_EN_SHIFT,
> + RG_HDMITXPLL_IBAND_FIX_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
> + 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT,
> + RG_HDMITXPLL_RESERVE_BIT14);
> +
> + /* HIKVCO */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
> + 0x0 << RG_HDMITXPLL_HIKVCO_SHIFT,
> + RG_HDMITXPLL_HIKVCO);
> +
> + /* HREN */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
> + 0x1 << RG_HDMITXPLL_HREN_SHIFT,
> RG_HDMITXPLL_HREN);
> +
> + /* LVR_SEL */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
> + 0x1 << RG_HDMITXPLL_LVR_SEL_SHIFT,
> + RG_HDMITXPLL_LVR_SEL);
> +
> + /* RG_HDMITXPLL_RESERVE[12:11] */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
> + 0x3 << RG_HDMITXPLL_RESERVE_BIT12_11_SHIFT,
> + RG_HDMITXPLL_RESERVE_BIT12_11);
> +
> + /* TCL_EN */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
> + 0x1 << RG_HDMITXPLL_TCL_EN_SHIFT,
> + RG_HDMITXPLL_TCL_EN);
> +
> + return 0;
> +}
> +
> +static int mtk_hdmi_pll_set_hw(struct clk_hw *hw, unsigned char
> prediv,
> + unsigned char fbkdiv_high,
> + unsigned long fbkdiv_low,
> + unsigned char fbkdiv_hs3, unsigned char
> posdiv1,
> + unsigned char posdiv2, unsigned char
> txprediv,
> + unsigned char txposdiv,
> + unsigned char digital_div)
> +{
> + unsigned char txposdiv_value = 0;
> + unsigned char div3_ctrl_value = 0;
> + unsigned char posdiv_vallue = 0;
> + unsigned char div_ctrl_value = 0;
> + unsigned char reserve_3_2_value = 0;
> + unsigned char prediv_value = 0;
> + unsigned char reserve13_value = 0;
> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
> +
> + mtk_hdmi_pll_select_source(hw);
> +
> + mtk_hdmi_pll_performance_setting(hw);
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
> + 0x2 << RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT,
> + RG_HDMITX21_BIAS_PE_BG_VREF_SEL);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
> + 0x0 << RG_HDMITX21_VREF_SEL_SHIFT,
> + RG_HDMITX21_VREF_SEL);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_9,
> + 0x2 << RG_HDMITX21_SLDO_VREF_SEL_SHIFT,
> + RG_HDMITX21_SLDO_VREF_SEL);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
> + 0x0 << RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT,
> + RG_HDMITX21_BIAS_PE_VREF_SELB);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
> + 0x1 << RG_HDMITX21_SLDOLPF_EN_SHIFT,
> + RG_HDMITX21_SLDOLPF_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x11 << RG_HDMITX21_INTR_CAL_SHIFT,
> + RG_HDMITX21_INTR_CAL);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
> + 0x1 << RG_HDMITXPLL_PWD_SHIFT,
> RG_HDMITXPLL_PWD);
> +
> + /* TXPOSDIV */
> + if (txposdiv == 1)
> + txposdiv_value = 0x0;
> + else if (txposdiv == 2)
> + txposdiv_value = 0x1;
> + else if (txposdiv == 4)
> + txposdiv_value = 0x2;
> + else if (txposdiv == 8)
> + txposdiv_value = 0x3;
> + else
> + return -EINVAL;
use ilog2()?

> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + txposdiv_value <<
> RG_HDMITX21_TX_POSDIV_SHIFT,
> + RG_HDMITX21_TX_POSDIV);
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT,
> + RG_HDMITX21_TX_POSDIV_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x0 << RG_HDMITX21_FRL_EN_SHIFT,
> RG_HDMITX21_FRL_EN);
> +
> + /* TXPREDIV */
> + if (txprediv == 2) {
> + div3_ctrl_value = 0x0;
> + posdiv_vallue = 0x0;
> + } else if (txprediv == 4) {
> + div3_ctrl_value = 0x0;
> + posdiv_vallue = 0x1;
> + } else if (txprediv == 6) {
> + div3_ctrl_value = 0x1;
> + posdiv_vallue = 0x0;
> + } else if (txprediv == 12) {
> + div3_ctrl_value = 0x1;
> + posdiv_vallue = 0x1;
> + } else {
> + return -EINVAL;
> + }
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
> + div3_ctrl_value
> + <<
> RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT,
> + RG_HDMITXPLL_POSDIV_DIV3_CTRL);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
> + posdiv_vallue << RG_HDMITXPLL_POSDIV_SHIFT,
> + RG_HDMITXPLL_POSDIV);
> +
> + /* POSDIV1 */
> + if (posdiv1 == 5)
> + div_ctrl_value = 0x0;
> + else if (posdiv1 == 10)
> + div_ctrl_value = 0x1;
> + else if (posdiv1 == (125 / 10))
> + div_ctrl_value = 0x2;
> + else if (posdiv1 == 15)
> + div_ctrl_value = 0x3;
> + else
> + return -EINVAL;
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
> + div_ctrl_value <<
> RG_HDMITXPLL_DIV_CTRL_SHIFT,
> + RG_HDMITXPLL_DIV_CTRL);
> +
> + /* DE add new setting */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
> + 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT,
> + RG_HDMITXPLL_RESERVE_BIT14);
> +
> + /* POSDIV2 */
> + if (posdiv2 == 1)
> + reserve_3_2_value = 0x0;
> + else if (posdiv2 == 2)
> + reserve_3_2_value = 0x1;
> + else if (posdiv2 == 4)
> + reserve_3_2_value = 0x2;
> + else if (posdiv2 == 6)
> + reserve_3_2_value = 0x3;
> + else
> + return -EINVAL;
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
> + reserve_3_2_value
> + << RG_HDMITXPLL_RESERVE_BIT3_2_SHIFT,
> + RG_HDMITXPLL_RESERVE_BIT3_2);
> +
> + /* DE add new setting */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
> + 0x2 << RG_HDMITXPLL_RESERVE_BIT1_0_SHIFT,
> + RG_HDMITXPLL_RESERVE_BIT1_0);
> +
> + /* PREDIV */
> + if (prediv == 1)
> + prediv_value = 0x0;
> + else if (prediv == 2)
> + prediv_value = 0x1;
> + else if (prediv == 4)
> + prediv_value = 0x2;
> + else
> + return -EINVAL;
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
> + prediv_value << RG_HDMITXPLL_PREDIV_SHIFT,
> + RG_HDMITXPLL_PREDIV);
> +
> + /* FBKDIV_HS3 */
> + if (fbkdiv_hs3 == 1)
> + reserve13_value = 0x0;
> + else if (fbkdiv_hs3 == 2)
> + reserve13_value = 0x1;
> + else
> + return -EINVAL;
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
> + reserve13_value <<
> RG_HDMITXPLL_RESERVE_BIT13_SHIFT,
> + RG_HDMITXPLL_RESERVE_BIT13);
> +
> + /* FBDIV */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
> + fbkdiv_high <<
> RG_HDMITXPLL_FBKDIV_high_SHIFT,
> + RG_HDMITXPLL_FBKDIV_HIGH);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_3,
> + fbkdiv_low << RG_HDMITXPLL_FBKDIV_low_SHIFT,
> + RG_HDMITXPLL_FBKDIV_low);
> +
> + /* Digital DIVIDER */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3,
> + 0x0 << REG_PIXEL_CLOCK_SEL_SHIFT,
> + REG_PIXEL_CLOCK_SEL);
> +
> + if (digital_div == 1) {
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3,
> + 0x0 << REG_HDMITX_PIXEL_CLOCK_SHIFT,
> + REG_HDMITX_PIXEL_CLOCK);
> + } else {
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3,
> + 0x1 << REG_HDMITX_PIXEL_CLOCK_SHIFT,
> + REG_HDMITX_PIXEL_CLOCK);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3,
> + (digital_div - 1) <<
> REG_HDMITXPLL_DIV_SHIFT,
> + REG_HDMITXPLL_DIV);
> + }
> +
> + return 0;
> +}
> +
> +#define PCW_DECIMAL_WIDTH 24
> +
> +static int mtk_hdmi_pll_calculate_params(struct clk_hw *hw, unsigned
> long rate,
> + unsigned long parent_rate)
> +{
> + int ret;
> + unsigned long long tmds_clk = 0;
> + unsigned long long pixel_clk = 0;
> + //pll input source frequency
> + unsigned long long da_hdmitx21_ref_ck = 0;
> + unsigned long long ns_hdmipll_ck = 0; //ICO output clk
> + //source clk for Display digital
> + unsigned long long ad_hdmipll_pixel_ck = 0;
> + unsigned char digital_div = 0;
> + unsigned long long pcw = 0; //FBDIV
> + unsigned char txprediv = 0;
> + unsigned char txposdiv = 0;
> + unsigned char fbkdiv_high = 0;
> + unsigned long fbkdiv_low = 0;
> + unsigned char posdiv1 = 0;
> + unsigned char posdiv2 = 0;
> + unsigned char prediv = 1; //prediv is always 1
> + unsigned char fbkdiv_hs3 = 1; //fbkdiv_hs3 is always 1
> + int i = 0;
> + unsigned char txpredivs[4] = { 2, 4, 6, 12 };
> +
> + pixel_clk = rate;
> + tmds_clk = pixel_clk;
> +
> + if (tmds_clk < 25000000 || tmds_clk > 594000000)
> + return -EINVAL;
> +
> + da_hdmitx21_ref_ck = 26000000UL; //in HZ
> +
> + /* TXPOSDIV stage treatment:
> + * 0M < TMDS clk < 54M /8
> + * 54M <= TMDS clk < 148.35M /4
> + * 148.35M <=TMDS clk < 296.7M /2
> + * 296.7 <=TMDS clk <= 594M /1
> + */
> + if (tmds_clk < 54000000UL)
> + txposdiv = 8;
> + else if (tmds_clk >= 54000000UL && tmds_clk < 148350000UL)
> + txposdiv = 4;
> + else if (tmds_clk >= 148350000UL && tmds_clk < 296700000UL)
> + txposdiv = 2;
> + else if (tmds_clk >= 296700000UL && tmds_clk <= 594000000UL)
> + txposdiv = 1;
> + else
> + return -EINVAL;
> +
> + /* calculate txprediv: can be 2, 4, 6, 12
> + * ICO clk = 5*TMDS_CLK*TXPOSDIV*TXPREDIV
> + * ICO clk constraint: 5G =< ICO clk <= 12G
> + */
> + for (i = 0; i < ARRAY_SIZE(txpredivs); i++) {
> + ns_hdmipll_ck = 5 * tmds_clk * txposdiv * txpredivs[i];
> + if (ns_hdmipll_ck >= 5000000000UL &&
> + ns_hdmipll_ck <= 12000000000UL)
> + break;
> + }
> + if (i == (ARRAY_SIZE(txpredivs) - 1) &&
> + (ns_hdmipll_ck < 5000000000UL || ns_hdmipll_ck >
> 12000000000UL)) {
> + return -EINVAL;
> + }
> + if (i == ARRAY_SIZE(txpredivs))
> + return -EINVAL;
> +
> + txprediv = txpredivs[i];
> +
> + /* PCW calculation: FBKDIV
> + * formula: pcw=(frequency_out*2^pcw_bit) / frequency_in /
> FBKDIV_HS3;
> + * RG_HDMITXPLL_FBKDIV[32:0]:
> + * [32,24] 9bit integer, [23,0]:24bit fraction
> + */
> + pcw = ns_hdmipll_ck;
> + pcw = pcw << PCW_DECIMAL_WIDTH;
> + pcw = pcw / da_hdmitx21_ref_ck;
> + pcw = pcw / fbkdiv_hs3;
> +
> + if ((pcw / BIT(32)) > 1) {
> + return -EINVAL;
> + } else if ((pcw / BIT(32)) == 1) {
> + fbkdiv_high = 1;
> + fbkdiv_low = pcw % BIT(32);
> + } else {
> + fbkdiv_high = 0;
> + fbkdiv_low = pcw;
> + }
> +
> + /* posdiv1:
> + * posdiv1 stage treatment according to color_depth:
> + * 24bit -> posdiv1 /10, 30bit -> posdiv1 /12.5,
> + * 36bit -> posdiv1 /15, 48bit -> posdiv1 /10
> + */
> + posdiv1 = 10; // div 10
> + posdiv2 = 1;
> + ad_hdmipll_pixel_ck = (ns_hdmipll_ck / 10) / 1;
> +
> + /* Digital clk divider, max /32 */
> + digital_div = ad_hdmipll_pixel_ck / pixel_clk;
> + if (!(digital_div <= 32 && digital_div >= 1))
> + return -EINVAL;
> +
> + ret = mtk_hdmi_pll_set_hw(hw, prediv, fbkdiv_high, fbkdiv_low,
> + fbkdiv_hs3, posdiv1, posdiv2,
> txprediv,
> + txposdiv, digital_div);
> + if (ret)
> + return -EINVAL;
> +
> + return 0;
> +}
> +
> +static int mtk_hdmi_pll_drv_setting(struct clk_hw *hw)
> +{
> + unsigned char data_channel_bias, clk_channel_bias;
> + unsigned char impedance, impedance_en;
> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
> + unsigned long tmds_clk;
> + unsigned long pixel_clk = hdmi_phy->pll_rate;
> +
> + tmds_clk = pixel_clk;
> +
> + /* bias & impedance setting:
> + * 3G < data rate <= 6G: enable impedance 100ohm,
> + * data channel bias 24mA, clock channel bias 20mA
> + * pixel clk >= HD, 74.175MHZ <= pixel clk <= 300MHZ:
> + * enalbe impedance 100ohm
> + * data channel 20mA, clock channel 16mA
> + * 27M =< pixel clk < 74.175: disable impedance
> + * data channel & clock channel bias 10mA
> + */
> +
> + /* 3G < data rate <= 6G, 300M < tmds rate <= 594M */
> + if (tmds_clk > 300000000UL && tmds_clk <= 594000000UL) {
> + data_channel_bias = 0x3c; //24mA
> + clk_channel_bias = 0x34; //20mA
> + impedance_en = 0xf;
> + impedance = 0x36; //100ohm
> + } else if (pixel_clk >= 74175000UL && pixel_clk <= 300000000UL)
> {
> + data_channel_bias = 0x34; //20mA
> + clk_channel_bias = 0x2c; //16mA
> + impedance_en = 0xf;
> + impedance = 0x36; //100ohm
> + } else if (pixel_clk >= 27000000UL && pixel_clk < 74175000UL) {
> + data_channel_bias = 0x14; //10mA
> + clk_channel_bias = 0x14; //10mA
> + impedance_en = 0x0;
> + impedance = 0x0;
> + } else {
> + return -EINVAL;
> + }
> +
> + /* bias */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1,
> + data_channel_bias <<
> RG_HDMITX21_DRV_IBIAS_D0_SHIFT,
> + RG_HDMITX21_DRV_IBIAS_D0);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1,
> + data_channel_bias <<
> RG_HDMITX21_DRV_IBIAS_D1_SHIFT,
> + RG_HDMITX21_DRV_IBIAS_D1);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1,
> + data_channel_bias <<
> RG_HDMITX21_DRV_IBIAS_D2_SHIFT,
> + RG_HDMITX21_DRV_IBIAS_D2);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
> + clk_channel_bias <<
> RG_HDMITX21_DRV_IBIAS_CLK_SHIFT,
> + RG_HDMITX21_DRV_IBIAS_CLK);
> +
> + /* impedance */
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
> + impedance_en << RG_HDMITX21_DRV_IMP_EN_SHIFT,
> + RG_HDMITX21_DRV_IMP_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2,
> + impedance <<
> RG_HDMITX21_DRV_IMP_D0_EN1_SHIFT,
> + RG_HDMITX21_DRV_IMP_D0_EN1);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2,
> + impedance <<
> RG_HDMITX21_DRV_IMP_D1_EN1_SHIFT,
> + RG_HDMITX21_DRV_IMP_D1_EN1);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2,
> + impedance <<
> RG_HDMITX21_DRV_IMP_D2_EN1_SHIFT,
> + RG_HDMITX21_DRV_IMP_D2_EN1);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2,
> + impedance <<
> RG_HDMITX21_DRV_IMP_CLK_EN1_SHIFT,
> + RG_HDMITX21_DRV_IMP_CLK_EN1);
> +
> + return 0;
> +}
> +
> +static int mtk_hdmi_pll_prepare(struct clk_hw *hw)
> +{
> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT,
> + RG_HDMITX21_TX_POSDIV_EN);
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
> + 0xf << RG_HDMITX21_SER_EN_SHIFT,
> RG_HDMITX21_SER_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x1 << RG_HDMITX21_D0_DRV_OP_EN_SHIFT,
> + RG_HDMITX21_D0_DRV_OP_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x1 << RG_HDMITX21_D1_DRV_OP_EN_SHIFT,
> + RG_HDMITX21_D1_DRV_OP_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x1 << RG_HDMITX21_D2_DRV_OP_EN_SHIFT,
> + RG_HDMITX21_D2_DRV_OP_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x1 << RG_HDMITX21_CK_DRV_OP_EN_SHIFT,
> + RG_HDMITX21_CK_DRV_OP_EN);
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x0 << RG_HDMITX21_FRL_D0_EN_SHIFT,
> + RG_HDMITX21_FRL_D0_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x0 << RG_HDMITX21_FRL_D1_EN_SHIFT,
> + RG_HDMITX21_FRL_D1_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x0 << RG_HDMITX21_FRL_D2_EN_SHIFT,
> + RG_HDMITX21_FRL_D2_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x0 << RG_HDMITX21_FRL_CK_EN_SHIFT,
> + RG_HDMITX21_FRL_CK_EN);
> +
> + mtk_hdmi_pll_drv_setting(hw);
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
> + 0x0 << RG_HDMITX21_BG_PWD_SHIFT,
> RG_HDMITX21_BG_PWD);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x1 << RG_HDMITX21_BIAS_EN_SHIFT,
> + RG_HDMITX21_BIAS_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
> + 0x1 << RG_HDMITX21_CKLDO_EN_SHIFT,
> + RG_HDMITX21_CKLDO_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
> + 0xf << RG_HDMITX21_SLDO_EN_SHIFT,
> + RG_HDMITX21_SLDO_EN);
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
> + 0x1 << DA_HDMITXPLL_PWR_ON_SHIFT,
> + DA_HDMITXPLL_PWR_ON);
> + usleep_range(5, 10);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
> + 0x0 << DA_HDMITXPLL_ISO_EN_SHIFT,
> + DA_HDMITXPLL_ISO_EN);
> + usleep_range(5, 10);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
> + 0x0 << RG_HDMITXPLL_PWD_SHIFT,
> RG_HDMITXPLL_PWD);
> + usleep_range(30, 50);
> + return 0;
> +}
> +
> +static void mtk_hdmi_pll_unprepare(struct clk_hw *hw)
> +{
> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
> + 0x1 << RG_HDMITX21_BG_PWD_SHIFT,
> RG_HDMITX21_BG_PWD);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x0 << RG_HDMITX21_BIAS_EN_SHIFT,
> + RG_HDMITX21_BIAS_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
> + 0x0 << RG_HDMITX21_CKLDO_EN_SHIFT,
> + RG_HDMITX21_CKLDO_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
> + 0x0 << RG_HDMITX21_SLDO_EN_SHIFT,
> + RG_HDMITX21_SLDO_EN);
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
> + 0x1 << RG_HDMITXPLL_PWD_SHIFT,
> RG_HDMITXPLL_PWD);
> + usleep_range(10, 20);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
> + 0x1 << DA_HDMITXPLL_ISO_EN_SHIFT,
> + DA_HDMITXPLL_ISO_EN);
> + usleep_range(10, 20);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
> + 0x0 << DA_HDMITXPLL_PWR_ON_SHIFT,
> + DA_HDMITXPLL_PWR_ON);
> +}
> +
> +static int mtk_hdmi_pll_set_rate(struct clk_hw *hw, unsigned long
> rate,
> + unsigned long parent_rate)
> +{
> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
> + int ret;
> +
> + dev_dbg(hdmi_phy->dev, "%s: %lu Hz, parent: %lu Hz\n",
> __func__, rate,
> + parent_rate);
> +
> + ret = mtk_hdmi_pll_calculate_params(hw, rate, parent_rate);
> + if (ret != 0)
> + return -EINVAL;
> +
> + return 0;
> +}
> +
> +static long mtk_hdmi_pll_round_rate(struct clk_hw *hw, unsigned long
> rate,
> + unsigned long *parent_rate)
> +{
> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
> +
> + hdmi_phy->pll_rate = rate;
> + return rate;
> +}
> +
> +static unsigned long mtk_hdmi_pll_recalc_rate(struct clk_hw *hw,
> + unsigned long
> parent_rate)
> +{
> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
> +
> + return hdmi_phy->pll_rate;
> +}
> +
> +static const struct clk_ops mtk_hdmi_pll_ops = {
> + .prepare = mtk_hdmi_pll_prepare,
> + .unprepare = mtk_hdmi_pll_unprepare,
> + .set_rate = mtk_hdmi_pll_set_rate,
> + .round_rate = mtk_hdmi_pll_round_rate,
> + .recalc_rate = mtk_hdmi_pll_recalc_rate,
> +};
> +
> +static void vtx_signal_en(struct mtk_hdmi_phy *hdmi_phy, bool on)
> +{
> + if (on)
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
> RG_HDMITX21_DRV_EN,
> + RG_HDMITX21_DRV_EN);
> + else
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
> + 0x0 << RG_HDMITX21_DRV_EN_SHIFT,
> + RG_HDMITX21_DRV_EN);
> +}
> +
> +static void mtk_hdmi_phy_enable_tmds(struct mtk_hdmi_phy *hdmi_phy)
> +{
> + vtx_signal_en(hdmi_phy, true);
> + usleep_range(100, 150);
> +}
> +
> +static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy)
> +{
> + vtx_signal_en(hdmi_phy, false);
> +}
> +
> +static int mtk_hdmi_phy_configure(struct phy *phy, union
> phy_configure_opts *opts)
> +{
> + struct phy_configure_opts_dp *dp_opts = &opts->dp;
> + struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);
> + int ret = 0;
> + bool enable = 0;
> +
> + ret = clk_set_rate(hdmi_phy->pll, dp_opts->link_rate);
> +
> + if (ret)
> + goto out;
> +
> + mtk_mt8195_phy_tmds_high_bit_clk_ratio(hdmi_phy, enable);
> +
> +out:
> + return ret;
> +}
> +
> +struct mtk_hdmi_phy_conf mtk_hdmi_phy_8195_conf = {
> + .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE,
> + .hdmi_phy_clk_ops = &mtk_hdmi_pll_ops,
> + .hdmi_phy_enable_tmds = mtk_hdmi_phy_enable_tmds,
> + .hdmi_phy_disable_tmds = mtk_hdmi_phy_disable_tmds,
> + .hdmi_phy_configure = mtk_hdmi_phy_configure,
> +};
> +
> +MODULE_AUTHOR("Can Zeng <[email protected]>");
> +MODULE_DESCRIPTION("MediaTek MT8195 HDMI PHY Driver");
> +MODULE_LICENSE("GPL v2");
> diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h
> b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h
> new file mode 100644
> index 000000000000..3cc51d8a18a4
> --- /dev/null
> +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h
> @@ -0,0 +1,204 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2021 MediaTek Inc.
> + * Copyright (c) 2021 BayLibre, SAS
> + */
> +
> +#ifndef _MTK_HDMI_PHY_8195_H
> +#define _MTK_HDMI_PHY_8195_H
> +
> +#include <linux/types.h>
> +#include <linux/clk.h>
> +#include <linux/clk-provider.h>
> +
> +#define DA_HDMITXPLL_ISO_EN BIT(1)
> +#define DA_HDMITXPLL_ISO_EN_SHIFT (1)
> +#define DA_HDMITXPLL_PWR_ON BIT(2)
> +#define DA_HDMITXPLL_PWR_ON_SHIFT (2)
> +
> +#define HDMI20_CLK_CFG 0x70
> +
> +#define HDMI_1_CFG_0 0x00
> +#define HDMI_1_CFG_1 0x04
> +#define HDMI_1_CFG_10 0x40
> +#define HDMI_1_CFG_2 0x08
> +#define HDMI_1_CFG_21 0x84
> +#define HDMI_1_CFG_22 0x88
> +#define HDMI_1_CFG_3 0x0c
> +#define HDMI_1_CFG_6 0x18
> +#define HDMI_1_CFG_9 0x24
> +#define HDMI_1_PLL_CFG_0 0x44
> +#define HDMI_1_PLL_CFG_1 0x48
> +#define HDMI_1_PLL_CFG_2 0x4c
> +#define HDMI_1_PLL_CFG_3 0x50
> +#define HDMI_1_PLL_CFG_4 0x54
> +
> +#define HDMI_ANA_CTL 0x7c
> +
> +#define HDMI_CTL_1 0xc4
> +#define HDMI_CTL_3 0xcc
> +
> +#define REG_ANA_HDMI20_FIFO_EN BIT(16)
> +
> +#define REG_HDMITXPLL_DIV GENMASK(4, 0)
> +#define REG_HDMITXPLL_DIV_SHIFT (0)
No need define *_SHIFT macros, use FIELD_PREP() etc

> +#define REG_HDMITX_PIXEL_CLOCK BIT(23)
> +#define REG_HDMITX_PIXEL_CLOCK_SHIFT (23)
> +#define REG_HDMITX_REF_RESPLL_SEL BIT(9)
> +#define REG_HDMITX_REF_RESPLL_SEL_SHIFT (9)
> +#define REG_HDMITX_REF_XTAL_SEL BIT(7)
> +#define REG_HDMITX_REF_XTAL_SEL_SHIFT (7)
> +
> +#define REG_PIXEL_CLOCK_SEL BIT(10)
> +#define REG_PIXEL_CLOCK_SEL_SHIFT (10)
> +
> +#define REG_TXC_DIV GENMASK(31, 30)
> +#define REG_TXC_DIV_SHIFT (30)
> +
> +#define RG_HDMITX21_BG_PWD BIT(20)
> +#define RG_HDMITX21_BG_PWD_SHIFT (20)
> +
> +#define RG_HDMITX21_BIAS_EN BIT(29)
> +#define RG_HDMITX21_BIAS_EN_SHIFT (29)
> +#define RG_HDMITX21_BIAS_PE_BG_VREF_SEL GENMASK(16, 15)
> +#define RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT (15)
> +#define RG_HDMITX21_BIAS_PE_VREF_SELB GENMASK(10, 10)
> +#define RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT (10)
> +
> +#define RG_HDMITX21_CKLDO_EN BIT(3)
> +#define RG_HDMITX21_CKLDO_EN_SHIFT (3)
> +
> +#define RG_HDMITX21_CK_DRV_OP_EN BIT(11)
> +#define RG_HDMITX21_CK_DRV_OP_EN_SHIFT (11)
> +
> +#define RG_HDMITX21_D0_DRV_OP_EN BIT(10)
> +#define RG_HDMITX21_D0_DRV_OP_EN_SHIFT (10)
> +
> +#define RG_HDMITX21_D1_DRV_OP_EN BIT(9)
> +#define RG_HDMITX21_D1_DRV_OP_EN_SHIFT (9)
> +
> +#define RG_HDMITX21_D2_DRV_OP_EN BIT(8)
> +#define RG_HDMITX21_D2_DRV_OP_EN_SHIFT (8)
> +
> +#define RG_HDMITX21_DRV_EN GENMASK(27, 24)
> +#define RG_HDMITX21_DRV_EN_SHIFT (24)
> +#define RG_HDMITX21_DRV_IBIAS_CLK GENMASK(10, 5)
> +#define RG_HDMITX21_DRV_IBIAS_CLK_SHIFT (5)
> +#define RG_HDMITX21_DRV_IBIAS_D0 GENMASK(19, 14)
> +#define RG_HDMITX21_DRV_IBIAS_D0_FFE1 GENMASK(21, 17)
> +#define RG_HDMITX21_DRV_IBIAS_D0_FFE1_SHIFT (17)
> +#define RG_HDMITX21_DRV_IBIAS_D0_FFE2 GENMASK(23, 20)
> +#define RG_HDMITX21_DRV_IBIAS_D0_FFE2_SHIFT (20)
> +#define RG_HDMITX21_DRV_IBIAS_D0_SHIFT (14)
> +#define RG_HDMITX21_DRV_IBIAS_D1 GENMASK(25, 20)
> +#define RG_HDMITX21_DRV_IBIAS_D1_FFE1 GENMASK(26, 22)
> +#define RG_HDMITX21_DRV_IBIAS_D1_FFE1_SHIFT (22)
> +#define RG_HDMITX21_DRV_IBIAS_D1_FFE2 GENMASK(27, 24)
> +#define RG_HDMITX21_DRV_IBIAS_D1_FFE2_SHIFT (24)
> +#define RG_HDMITX21_DRV_IBIAS_D1_SHIFT (20)
> +#define RG_HDMITX21_DRV_IBIAS_D2 GENMASK(31, 26)
> +#define RG_HDMITX21_DRV_IBIAS_D2_FFE1 GENMASK(31, 27)
> +#define RG_HDMITX21_DRV_IBIAS_D2_FFE1_SHIFT (27)
> +#define RG_HDMITX21_DRV_IBIAS_D2_FFE2 GENMASK(31, 28)
> +#define RG_HDMITX21_DRV_IBIAS_D2_FFE2_SHIFT (28)
> +#define RG_HDMITX21_DRV_IBIAS_D2_SHIFT (26)
> +#define RG_HDMITX21_DRV_IMP_CLK_EN1 GENMASK(31, 26)
> +#define RG_HDMITX21_DRV_IMP_CLK_EN1_SHIFT (26)
> +#define RG_HDMITX21_DRV_IMP_D0_EN1 GENMASK(13, 8)
> +#define RG_HDMITX21_DRV_IMP_D0_EN1_SHIFT (8)
> +#define RG_HDMITX21_DRV_IMP_D1_EN1 GENMASK(19, 14)
> +#define RG_HDMITX21_DRV_IMP_D1_EN1_SHIFT (14)
> +#define RG_HDMITX21_DRV_IMP_D2_EN1 GENMASK(25, 20)
> +#define RG_HDMITX21_DRV_IMP_D2_EN1_SHIFT (20)
> +#define RG_HDMITX21_DRV_IMP_EN GENMASK(23, 20)
> +#define RG_HDMITX21_DRV_IMP_EN_SHIFT (20)
> +
> +#define RG_HDMITX21_FRL_CK_EN BIT(13)
> +#define RG_HDMITX21_FRL_CK_EN_SHIFT (13)
> +#define RG_HDMITX21_FRL_D0_EN BIT(14)
> +#define RG_HDMITX21_FRL_D0_EN_SHIFT (14)
> +#define RG_HDMITX21_FRL_D1_EN BIT(15)
> +#define RG_HDMITX21_FRL_D1_EN_SHIFT (15)
> +#define RG_HDMITX21_FRL_D2_EN BIT(16)
> +#define RG_HDMITX21_FRL_D2_EN_SHIFT (16)
> +#define RG_HDMITX21_FRL_EN BIT(12)
> +#define RG_HDMITX21_FRL_EN_SHIFT (12)
> +
> +#define RG_HDMITX21_INTR_CAL GENMASK(22, 18)
> +#define RG_HDMITX21_INTR_CAL_READOUT GENMASK(22, 18)
> +#define RG_HDMITX21_INTR_CAL_READOUT_SHIFT (18)
> +#define RG_HDMITX21_INTR_CAL_SHIFT (18)
> +
> +#define RG_HDMITX21_SER_EN GENMASK(31, 28)
> +#define RG_HDMITX21_SER_EN_SHIFT (28)
> +
> +#define RG_HDMITX21_SLDOLPF_EN BIT(7)
> +#define RG_HDMITX21_SLDOLPF_EN_SHIFT (7)
> +#define RG_HDMITX21_SLDO_EN GENMASK(11, 8)
> +#define RG_HDMITX21_SLDO_EN_SHIFT (8)
> +#define RG_HDMITX21_SLDO_VREF_SEL GENMASK(5, 4)
> +#define RG_HDMITX21_SLDO_VREF_SEL_SHIFT (4)
> +
> +#define RG_HDMITX21_TX_POSDIV GENMASK(27, 26)
> +#define RG_HDMITX21_TX_POSDIV_EN GENMASK(28, 28)
> +#define RG_HDMITX21_TX_POSDIV_EN_SHIFT (28)
> +#define RG_HDMITX21_TX_POSDIV_SHIFT (26)
> +
> +#define RG_HDMITX21_VREF_SEL BIT(4)
> +#define RG_HDMITX21_VREF_SEL_SHIFT (4)
> +
> +#define RG_HDMITXPLL_BC GENMASK(28, 27)
> +#define RG_HDMITXPLL_BC_SHIFT (27)
> +#define RG_HDMITXPLL_BP GENMASK(13, 10)
> +#define RG_HDMITXPLL_BP2 BIT(30)
> +#define RG_HDMITXPLL_BP2_SHIFT (30)
> +#define RG_HDMITXPLL_BP_SHIFT (10)
> +#define RG_HDMITXPLL_BR GENMASK(21, 19)
> +#define RG_HDMITXPLL_BR_SHIFT (19)
> +#define RG_HDMITXPLL_DIV_CTRL GENMASK(25, 24)
> +#define RG_HDMITXPLL_DIV_CTRL_SHIFT (24)
> +#define RG_HDMITXPLL_FBKDIV_HIGH BIT(31)
> +#define RG_HDMITXPLL_FBKDIV_high_SHIFT (31)
> +#define RG_HDMITXPLL_FBKDIV_low (0xffffffff)
> +#define RG_HDMITXPLL_FBKDIV_low_SHIFT (0)
> +#define RG_HDMITXPLL_HIKVCO GENMASK(29, 29)
> +#define RG_HDMITXPLL_HIKVCO_SHIFT (29)
> +#define RG_HDMITXPLL_HREN GENMASK(13, 12)
> +#define RG_HDMITXPLL_HREN_SHIFT (12)
> +#define RG_HDMITXPLL_IBAND_FIX_EN GENMASK(24, 24)
> +#define RG_HDMITXPLL_IBAND_FIX_EN_SHIFT (24)
> +#define RG_HDMITXPLL_IC GENMASK(26, 22)
> +#define RG_HDMITXPLL_IC_SHIFT (22)
> +#define RG_HDMITXPLL_IR GENMASK(18, 14)
> +#define RG_HDMITXPLL_IR_SHIFT (14)
> +#define RG_HDMITXPLL_LVR_SEL GENMASK(27, 26)
> +#define RG_HDMITXPLL_LVR_SEL_SHIFT (26)
> +#define RG_HDMITXPLL_POSDIV GENMASK(23, 22)
> +#define RG_HDMITXPLL_POSDIV_DIV3_CTRL BIT(21)
> +#define RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT (21)
> +#define RG_HDMITXPLL_POSDIV_SHIFT (22)
> +#define RG_HDMITXPLL_PREDIV GENMASK(29, 28)
> +#define RG_HDMITXPLL_PREDIV_SHIFT (28)
> +#define RG_HDMITXPLL_PWD BIT(31)
> +#define RG_HDMITXPLL_PWD_SHIFT (31)
> +#define RG_HDMITXPLL_REF_CK_SEL GENMASK(2, 1)
> +#define RG_HDMITXPLL_REF_CK_SEL_SHIFT (1)
> +#define RG_HDMITXPLL_RESERVE GENMASK(15, 0)
> +#define RG_HDMITXPLL_RESERVE_BIT12_11 GENMASK(12, 11)
> +#define RG_HDMITXPLL_RESERVE_BIT12_11_SHIFT (11)
> +#define RG_HDMITXPLL_RESERVE_BIT13 BIT(13)
> +#define RG_HDMITXPLL_RESERVE_BIT13_SHIFT (13)
> +#define RG_HDMITXPLL_RESERVE_BIT14 BIT(14)
> +#define RG_HDMITXPLL_RESERVE_BIT14_SHIFT (14)
> +#define RG_HDMITXPLL_RESERVE_BIT1_0 GENMASK(1, 0)
> +#define RG_HDMITXPLL_RESERVE_BIT1_0_SHIFT (0)
> +#define RG_HDMITXPLL_RESERVE_BIT3_2 GENMASK(3, 2)
> +#define RG_HDMITXPLL_RESERVE_BIT3_2_SHIFT (2)
> +#define RG_HDMITXPLL_RESERVE_SHIFT (0)
> +#define RG_HDMITXPLL_TCL_EN BIT(31)
> +#define RG_HDMITXPLL_TCL_EN_SHIFT (31)
> +
> +#define RG_INTR_IMP_RG_MODE GENMASK(7, 3)
> +#define RG_INTR_IMP_RG_MODE_SHIFT (3)
> +
> +#endif /* MTK_HDMI_PHY_8195_H */
> diff --git a/drivers/phy/mediatek/phy-mtk-hdmi.c
> b/drivers/phy/mediatek/phy-mtk-hdmi.c
> index af46472237e0..3fb60ab53668 100644
> --- a/drivers/phy/mediatek/phy-mtk-hdmi.c
> +++ b/drivers/phy/mediatek/phy-mtk-hdmi.c
> @@ -194,6 +194,9 @@ static const struct of_device_id
> mtk_hdmi_phy_match[] = {
> { .compatible = "mediatek,mt8173-hdmi-phy",
> .data = &mtk_hdmi_phy_8173_conf,
> },
> + { .compatible = "mediatek,mt8195-hdmi-phy",
> + .data = &mtk_hdmi_phy_8195_conf,
> + },
> {},
> };
> MODULE_DEVICE_TABLE(of, mtk_hdmi_phy_match);
> diff --git a/drivers/phy/mediatek/phy-mtk-hdmi.h
> b/drivers/phy/mediatek/phy-mtk-hdmi.h
> index 05de93f63a61..9d6399be71e9 100644
> --- a/drivers/phy/mediatek/phy-mtk-hdmi.h
> +++ b/drivers/phy/mediatek/phy-mtk-hdmi.h
> @@ -51,6 +51,7 @@ void mtk_hdmi_phy_mask(struct mtk_hdmi_phy
> *hdmi_phy, u32 offset,
> u32 val, u32 mask);
> struct mtk_hdmi_phy *to_mtk_hdmi_phy(struct clk_hw *hw);
>
> +extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_8195_conf;
> extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_8173_conf;
> extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf;
>
>

2022-09-20 10:32:59

[permalink] [raw]

Subject: Re: [PATCH v1 05/17] drm/mediatek: hdmi: use a syscon/regmap instead of iomem

Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
> To prepare support for newer chips that need to share their address
> range with a dedicated ddc driver, move to a syscon.
>
> Signed-off-by: Guillaume Ranquet <[email protected]>
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
> index 3196189429bc..5cd05d4fe1a9 100644
> --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c

..snip..

> @@ -1428,7 +1413,6 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
> struct device_node *cec_np, *remote, *i2c_np;
> struct platform_device *cec_pdev;
> struct regmap *regmap;
> - struct resource *mem;
> int ret;
>
> ret = mtk_hdmi_get_all_clk(hdmi, np);
> @@ -1474,8 +1458,7 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
> }
> hdmi->sys_regmap = regmap;
>
> - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> - hdmi->regs = devm_ioremap_resource(dev, mem);
> + hdmi->regs = syscon_node_to_regmap(dev->of_node);

Nack. You're breaking ABI, this will force everyone to add syscon to devicetree,
hence this breaks retrocompatibility with old devicetrees.

Hint: not here, device_node_to_regmap()

Regards,
Angelo

> if (IS_ERR(hdmi->regs)) {
> ret = PTR_ERR(hdmi->regs);
> goto put_device;

2022-09-20 10:33:26

[permalink] [raw]

Subject: Re: [PATCH v1 07/17] drm/mediatek: extract common functions from the mtk hdmi driver

Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
> Create a common "framework" that can be used to add support for
> different hdmi IPs within the mediatek range of products.
>
> Signed-off-by: Guillaume Ranquet <[email protected]>
>
> diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile
> index d4d193f60271..008ec69da67b 100644
> --- a/drivers/gpu/drm/mediatek/Makefile
> +++ b/drivers/gpu/drm/mediatek/Makefile
> @@ -22,7 +22,8 @@ obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o
>
> mediatek-drm-hdmi-objs := mtk_cec.o \
> mtk_hdmi.o \

abcd ... mtk_hdmi_common.o goes here :-)

> - mtk_hdmi_ddc.o
> + mtk_hdmi_ddc.o \
> + mtk_hdmi_common.o \
>
> obj-$(CONFIG_DRM_MEDIATEK_HDMI) += mediatek-drm-hdmi.o
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
> index 5cd05d4fe1a9..837d36ec4d64 100644
> --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
> @@ -32,187 +32,18 @@
> #include <drm/drm_probe_helper.h>
>
> #include "mtk_cec.h"
> -#include "mtk_hdmi.h"
> #include "mtk_hdmi_regs.h"
> +#include "mtk_hdmi_common.h"
>
> #define NCTS_BYTES 7
>
> -enum mtk_hdmi_clk_id {
> - MTK_HDMI_CLK_HDMI_PIXEL,
> - MTK_HDMI_CLK_HDMI_PLL,
> - MTK_HDMI_CLK_AUD_BCLK,
> - MTK_HDMI_CLK_AUD_SPDIF,
> - MTK_HDMI_CLK_COUNT
> +const char * const mtk_hdmi_clk_names_mt8183[MTK_MT8183_HDMI_CLK_COUNT] = {

Why MT8183? This can be either MT8167 or MT2701... or, IMO more appropriately, you
should name the IP version.
Example: MTK_HDMIV123_CLK_COUNT (I don't know what IP version would that be!).

> + [MTK_MT8183_HDMI_CLK_HDMI_PIXEL] = "pixel",
> + [MTK_MT8183_HDMI_CLK_HDMI_PLL] = "pll",
> + [MTK_MT8183_HDMI_CLK_AUD_BCLK] = "bclk",
> + [MTK_MT8183_HDMI_CLK_AUD_SPDIF] = "spdif",
> };
>

Regards,
Angelo

2022-09-20 10:43:03

[permalink] [raw]

Subject: Re: [PATCH v1 06/17] dt-bindings: mediatek: set the hdmi to be compatible with syscon

Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
> In order to share register with a dedicated ddc driver, set the hdmi
> compatible to syscon.
>
> Signed-off-by: Guillaume Ranquet <[email protected]>
>
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
> index abb231a0694b..86297b7eb7f7 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
> @@ -16,12 +16,14 @@ description: |
>
> properties:
> compatible:
> - enum:
> - - mediatek,mt2701-hdmi
> - - mediatek,mt7623-hdmi
> - - mediatek,mt8167-hdmi
> - - mediatek,mt8173-hdmi
> - - mediatek,mt8195-hdmi
> + items:
> + - enum:
> + - mediatek,mt2701-hdmi
> + - mediatek,mt7623-hdmi
> + - mediatek,mt8167-hdmi
> + - mediatek,mt8173-hdmi
> + - const: syscon
> +

This is an ABI breakage, you can't do that.

Regards,
Angelo

2022-09-20 11:12:32

[permalink] [raw]

Subject: Re: [PATCH v1 11/17] drm/mediatek: hdmi: add mt8195 support

Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
> Adds hdmi and hdmi-ddc support for mt8195.
>
> Signed-off-by: Guillaume Ranquet <[email protected]>
>
> diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile
> index 008ec69da67b..f1ef6c8ae2b8 100644
> --- a/drivers/gpu/drm/mediatek/Makefile
> +++ b/drivers/gpu/drm/mediatek/Makefile
> @@ -24,6 +24,8 @@ mediatek-drm-hdmi-objs := mtk_cec.o \
> mtk_hdmi.o \
> mtk_hdmi_ddc.o \
> mtk_hdmi_common.o \
> + mtk_mt8195_hdmi.o \
> + mtk_mt8195_hdmi_ddc.o \
>
> obj-$(CONFIG_DRM_MEDIATEK_HDMI) += mediatek-drm-hdmi.o
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
> index 9fe086e2cd7c..f6bfe6c1c0be 100644
> --- a/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_common.c
> @@ -226,14 +226,22 @@ int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi, struct platform_device *pdev,
> goto put_device;
> }
> }
> - }
>
> - i2c_np = of_parse_phandle(remote, "ddc-i2c-bus", 0);
> - if (!i2c_np) {
> - of_node_put(pdev->dev.of_node);
> - dev_err(dev, "Failed to find ddc-i2c-bus");
> - ret = -EINVAL;
> - goto put_device;
> + i2c_np = of_parse_phandle(remote, "ddc-i2c-bus", 0);
> + if (!i2c_np) {
> + of_node_put(pdev->dev.of_node);
> + dev_err(dev, "Failed to find ddc-i2c-bus");
> + ret = -EINVAL;
> + goto put_device;
> + }
> + } else {
> + i2c_np = of_parse_phandle(pdev->dev.of_node, "ddc-i2c-bus", 0);
> + if (!i2c_np) {
> + of_node_put(pdev->dev.of_node);
> + dev_err(dev, "Failed to find ddc-i2c-bus");
> + ret = -EINVAL;
> + goto put_device;
> + }
> }
>
> hdmi->ddc_adpt = of_find_i2c_adapter_by_node(i2c_np);
> @@ -372,6 +380,17 @@ static const struct mtk_hdmi_conf mtk_hdmi_conf_mt8173 = {
> .num_clocks = MTK_MT8183_HDMI_CLK_COUNT,
> };
>
> +static const struct mtk_hdmi_conf mtk_hdmi_conf_mt8195 = {
> + .has_frame_colorimetry = true,
> + .bridge_funcs = &mtk_mt8195_hdmi_bridge_funcs,
> + .mtk_hdmi_output_init = mtk_hdmi_output_init_mt8195,
> + .mtk_hdmi_clk_disable = mtk_hdmi_clk_disable_mt8195,
> + .mtk_hdmi_clk_enable = mtk_hdmi_clk_enable_mt8195,
> + .set_hdmi_codec_pdata = set_hdmi_codec_pdata_mt8195,
> + .mtk_hdmi_clock_names = mtk_hdmi_clk_names_mt8195,
> + .num_clocks = MTK_MT8195_HDMI_CLK_COUNT,
> +};
> +
> static const struct of_device_id mtk_drm_hdmi_of_ids[] = {
> { .compatible = "mediatek,mt2701-hdmi",
> .data = &mtk_hdmi_conf_mt2701,
> @@ -382,6 +401,9 @@ static const struct of_device_id mtk_drm_hdmi_of_ids[] = {
> { .compatible = "mediatek,mt8173-hdmi",
> .data = &mtk_hdmi_conf_mt8173,
> },
> + { .compatible = "mediatek,mt8195-hdmi",
> + .data = &mtk_hdmi_conf_mt8195,
> + },
> {}
> };
> MODULE_DEVICE_TABLE(of, mtk_drm_hdmi_of_ids);
> @@ -430,6 +452,7 @@ static struct platform_driver mtk_hdmi_driver = {
> static struct platform_driver * const mtk_hdmi_drivers[] = {
> &mtk_hdmi_ddc_driver,
> &mtk_cec_driver,
> + &mtk_hdmi_mt8195_ddc_driver,
> &mtk_hdmi_driver,
> };
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi_common.h b/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
> index 75a9b62dccee..737306611fb9 100644
> --- a/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi_common.h
> @@ -27,6 +27,7 @@
>
> #include "mtk_cec.h"
> #include "mtk_hdmi.h"
> +#include "mtk_mt8195_hdmi.h"
>
> struct mtk_hdmi_conf {
> bool tz_disabled;
> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> new file mode 100644
> index 000000000000..39e07a6dd490
> --- /dev/null
> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> @@ -0,0 +1,1387 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2022 MediaTek Inc.
> + * Copyright (c) 2022 BayLibre, SAS
> + */
> +
> +#include <linux/arm-smccc.h>
> +#include <linux/clk.h>
> +#include <linux/clk-provider.h>
> +#include <linux/delay.h>
> +#include <linux/debugfs.h>
> +#include <linux/io.h>
> +#include <linux/kernel.h>
> +#include <linux/mfd/syscon.h>
> +#include <linux/of_platform.h>
> +#include <linux/of.h>
> +#include <linux/of_irq.h>
> +#include <linux/of_gpio.h>
> +#include <linux/of_graph.h>
> +#include <linux/pm_wakeup.h>
> +#include <linux/timer.h>
> +
> +#include <drm/drm_displayid.h>
> +#include <drm/drm_edid.h>
> +#include <drm/drm_print.h>
> +#include <drm/drm_probe_helper.h>
> +#include <drm/display/drm_scdc_helper.h>
> +
> +#include "mtk_drm_crtc.h"
> +#include "mtk_hdmi_common.h"
> +#include "mtk_mt8195_hdmi.h"
> +#include "mtk_mt8195_hdmi_regs.h"
> +
> +#define RGB444_8bit BIT(0)
> +#define RGB444_10bit BIT(1)
> +#define RGB444_12bit BIT(2)
> +#define RGB444_16bit BIT(3)
> +
> +#define YCBCR444_8bit BIT(4)
> +#define YCBCR444_10bit BIT(5)
> +#define YCBCR444_12bit BIT(6)
> +#define YCBCR444_16bit BIT(7)
> +
> +#define YCBCR422_8bit_NO_SUPPORT BIT(8)
> +#define YCBCR422_10bit_NO_SUPPORT BIT(9)
> +#define YCBCR422_12bit BIT(10)
> +#define YCBCR422_16bit_NO_SUPPORT BIT(11)
> +
> +#define YCBCR420_8bit BIT(12)
> +#define YCBCR420_10bit BIT(13)
> +#define YCBCR420_12bit BIT(14)
> +#define YCBCR420_16bit BIT(15)
> +
> +#define BYTES_TO_UINT32(msb, b1, b2, lsb) \
> + ((((msb) & 0xff) << 24) + (((b1) & 0xff) << 16) + (((b2) & 0xff) << 8) + \
> + (((lsb) & 0xff)))
> +
> +const char *const mtk_hdmi_clk_names_mt8195[MTK_MT8195_HDMI_CLK_COUNT] = {
> + [MTK_MT8195_HDIM_HDCP_SEL] = "hdcp_sel",
> + [MTK_MT8195_HDMI_HDCP_24M_SEL] = "hdcp24_sel",
> + [MTK_MT8195_HDMI_VPP_SPLIT_HDMI] = "split_hdmi",
> +};
> +
> +static inline struct mtk_hdmi *hdmi_ctx_from_conn(struct drm_connector *c)
> +{
> + return container_of(c, struct mtk_hdmi, conn);
> +}
> +
> +static inline void mtk_hdmi_clr_all_int_status(struct mtk_hdmi *hdmi)
> +{
> + /*clear all tx irq*/
> + mtk_hdmi_write(hdmi, TOP_INT_CLR00, 0xffffffff);
> + mtk_hdmi_write(hdmi, TOP_INT_CLR00, 0x00000000);
> + mtk_hdmi_write(hdmi, TOP_INT_CLR01, 0xffffffff);
> + mtk_hdmi_write(hdmi, TOP_INT_CLR01, 0x00000000);
> +}
> +
> +static inline void mtk_hdmi_disable_all_int(struct mtk_hdmi *hdmi)
> +{
> + /*disable all tx irq*/
> + mtk_hdmi_write(hdmi, TOP_INT_MASK00, 0x00000000);
> + mtk_hdmi_write(hdmi, TOP_INT_MASK01, 0x00000000);
> +}
> +
> +static inline void mtk_hdmi_en_hdcp_reauth_int(struct mtk_hdmi *hdmi,
> + bool enable)
> +{
> + if (enable)
> + mtk_hdmi_mask(hdmi, TOP_INT_MASK00,
> + HDCP2X_RX_REAUTH_REQ_DDCM_INT_UNMASK,
> + HDCP2X_RX_REAUTH_REQ_DDCM_INT_UNMASK);
> + else
> + mtk_hdmi_mask(hdmi, TOP_INT_MASK00,
> + HDCP2X_RX_REAUTH_REQ_DDCM_INT_MASK,
> + HDCP2X_RX_REAUTH_REQ_DDCM_INT_UNMASK);
> +}
> +
> +static inline void mtk_hdmi_enable_hpd_pord_irq(struct mtk_hdmi *hdmi,
> + bool enable)
> +{
> + if (enable)
> + mtk_hdmi_mask(hdmi, TOP_INT_MASK00, 0x0000000f, 0x0000000f);
> + else
> + mtk_hdmi_mask(hdmi, TOP_INT_MASK00, 0x00000000, 0x0000000f);
> +}
> +
> +static inline void mtk_hdmi_clr_htplg_pord_irq(struct mtk_hdmi *hdmi)
> +{
> + mtk_hdmi_mask(hdmi, TOP_INT_CLR00, 0x0000000f, 0x0000000f);
> + mtk_hdmi_mask(hdmi, TOP_INT_CLR00, 0x00000000, 0x0000000f);
> +}
> +
> +static inline void mtk_hdmi_set_sw_hpd(struct mtk_hdmi *hdmi, bool high)
> +{
> + if (high)
> + mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0x1 << HDMITX_SW_HPD_SHIFT,
> + HDMITX_SW_HPD);
> + else
> + mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0x0 << HDMITX_SW_HPD_SHIFT,
> + HDMITX_SW_HPD);
> +}
> +
> +static inline void mtk_hdmi_force_hdcp_hpd(struct mtk_hdmi *hdmi)
> +{
> + /* force HDCP HPD to 1*/
> + mtk_hdmi_mask(hdmi, HDCP2X_CTRL_0, HDCP2X_HPD_OVR, HDCP2X_HPD_OVR);
> + mtk_hdmi_mask(hdmi, HDCP2X_CTRL_0, HDCP2X_HPD_SW, HDCP2X_HPD_SW);
> +}
> +
> +static void mtk_hdmi_disable_hdcp_encrypt(struct mtk_hdmi *hdmi)
> +{
> + mtk_hdmi_mask(hdmi, HDCP2X_CTRL_0, 0x0 << HDCP2X_ENCRYPT_EN_SHIFT,
> + HDCP2X_ENCRYPT_EN);
> + mtk_hdmi_mask(hdmi, HDCP1X_CTRL, 0x0 << HDCP1X_ENC_EN_SHIFT,
> + HDCP1X_ENC_EN);
> +}
> +
> +static void mtk_hdmi_yuv420_downsample(struct mtk_hdmi *hdmi, bool enable)
> +{
> + if (enable) {
> + mtk_hdmi_mask(hdmi, HDMITX_CONFIG,
> + HDMI_YUV420_MODE | HDMITX_SW_HPD,
> + HDMI_YUV420_MODE | HDMITX_SW_HPD);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG,
> + C444_C422_CONFIG_ENABLE, C444_C422_CONFIG_ENABLE);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG,
> + C422_C420_CONFIG_ENABLE, C422_C420_CONFIG_ENABLE);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG, 0,
> + C422_C420_CONFIG_BYPASS);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG,
> + C422_C420_CONFIG_OUT_CB_OR_CR,
> + C422_C420_CONFIG_OUT_CB_OR_CR);
> + mtk_hdmi_mask(hdmi, VID_OUT_FORMAT,
> + OUTPUT_FORMAT_DEMUX_420_ENABLE,
> + OUTPUT_FORMAT_DEMUX_420_ENABLE);
> + } else {
> + mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0 | HDMITX_SW_HPD,
> + HDMI_YUV420_MODE | HDMITX_SW_HPD);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG, 0,
> + C444_C422_CONFIG_ENABLE);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG, 0,
> + C422_C420_CONFIG_ENABLE);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG,
> + C422_C420_CONFIG_BYPASS, C422_C420_CONFIG_BYPASS);
> + mtk_hdmi_mask(hdmi, VID_DOWNSAMPLE_CONFIG, 0,
> + C422_C420_CONFIG_OUT_CB_OR_CR);
> + mtk_hdmi_mask(hdmi, VID_OUT_FORMAT, 0,
> + OUTPUT_FORMAT_DEMUX_420_ENABLE);
> + }
> +}
> +
> +static bool mtk_hdmi_tmds_over_340M(struct mtk_hdmi *hdmi)
> +{
> + unsigned long pixel_clk, tmds_clk;
> +
> + pixel_clk = hdmi->mode.clock * 1000;
> +
> + /* TMDS clk frequency */
> + if (hdmi->color_depth == HDMI_8_BIT)
> + tmds_clk = pixel_clk;
> + else if (hdmi->color_depth == HDMI_10_BIT)
> + tmds_clk = pixel_clk * 5 / 4;
> + else if (hdmi->color_depth == HDMI_12_BIT)
> + tmds_clk = pixel_clk * 3 / 2;
> + else if (hdmi->color_depth == HDMI_16_BIT)
> + tmds_clk = pixel_clk * 2;
> + else
> + /* Invalid color_depth */
> + return false;
> +
> + if (tmds_clk >= 340000000 && hdmi->csp != HDMI_COLORSPACE_YUV420)
> + return true;
> +
> + return false;
> +}
> +
> +static inline void mtk_hdmi_enable_scrambling(struct mtk_hdmi *hdmi,
> + bool enable)
> +{
> + usleep_range(100, 150);
> +
> + if (enable)
> + mtk_hdmi_mask(hdmi, TOP_CFG00, SCR_ON | HDMI2_ON,
> + SCR_ON | HDMI2_ON);
> + else
> + mtk_hdmi_mask(hdmi, TOP_CFG00, SCR_OFF | HDMI2_OFF,
> + SCR_ON | HDMI2_ON);
> +}
> +
> +static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black)
> +{
> + if (black)
> + mtk_hdmi_mask(hdmi, TOP_VMUTE_CFG1, REG_VMUTE_EN, REG_VMUTE_EN);
> + else
> + mtk_hdmi_mask(hdmi, TOP_VMUTE_CFG1, 0, REG_VMUTE_EN);
> +}
> +
> +static void mtk_hdmi_hw_reset(struct mtk_hdmi *hdmi)
> +{
> + mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0x0 << HDMITX_SW_RSTB_SHIFT,
> + HDMITX_SW_RSTB);
> + udelay(5);
> + mtk_hdmi_mask(hdmi, HDMITX_CONFIG, 0x1 << HDMITX_SW_RSTB_SHIFT,
> + HDMITX_SW_RSTB);
> +}
> +
> +static void mtk_hdmi_enable_hdmi_mode(struct mtk_hdmi *hdmi, bool enable)
> +{
> + if (enable)
> + mtk_hdmi_mask(hdmi, TOP_CFG00, HDMI_MODE_HDMI, HDMI_MODE_HDMI);
> + else
> + mtk_hdmi_mask(hdmi, TOP_CFG00, HDMI_MODE_DVI, HDMI_MODE_HDMI);
> +}
> +
> +static bool mtk_hdmi_sink_is_hdmi_device(struct mtk_hdmi *hdmi)
> +{
> + if (hdmi->dvi_mode)
> + return false;
> + else
> + return true;
> +}
> +
> +static void mtk_hdmi_set_deep_color(struct mtk_hdmi *hdmi, bool is_hdmi_sink)
> +{
> + unsigned int deep_color = 0;
> +
> + /* ycbcr422 12bit no deep color */
> + if (hdmi->csp == HDMI_COLORSPACE_YUV422) {
> + deep_color = DEEPCOLOR_MODE_8BIT;
> + } else {
> + switch (hdmi->color_depth) {
> + case HDMI_8_BIT:
> + deep_color = DEEPCOLOR_MODE_8BIT;
> + break;
> + case HDMI_10_BIT:
> + deep_color = DEEPCOLOR_MODE_10BIT;
> + break;
> + case HDMI_12_BIT:
> + deep_color = DEEPCOLOR_MODE_12BIT;
> + break;
> + case HDMI_16_BIT:
> + deep_color = DEEPCOLOR_MODE_16BIT;
> + break;
> + default:
> + WARN(1, "Unssupported color depth %d\n",
> + hdmi->color_depth);
> + }
> + }
> +
> + mtk_hdmi_mask(hdmi, TOP_CFG00, deep_color, DEEPCOLOR_MODE_MASKBIT);
> +
> + /* GCP */
> + mtk_hdmi_mask(hdmi, TOP_CFG00, 0, DEEPCOLOR_PAT_EN);
> + if (is_hdmi_sink && deep_color != DEEPCOLOR_MODE_8BIT)
> + mtk_hdmi_mask(hdmi, TOP_MISC_CTLR, DEEP_COLOR_ADD,
> + DEEP_COLOR_ADD);
> + else
> + mtk_hdmi_mask(hdmi, TOP_MISC_CTLR, 0, DEEP_COLOR_ADD);
> +}
> +
> +static void mtk_hdmi_hw_audio_infoframe(struct mtk_hdmi *hdmi, u8 *buffer,
> + u8 len)
> +{
> + enum hdmi_infoframe_type frame_type;
> + u8 frame_ver;
> + u8 frame_len;
> + u8 checksum;
> +
> + frame_type = buffer[0];
> + frame_ver = buffer[1];
> + frame_len = buffer[2];
> + checksum = buffer[3];
> +
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, AUD_DIS_WR | AUD_DIS,
> + AUD_EN_WR | AUD_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, AUD_RPT_DIS, AUD_RPT_EN);
> +
> + mtk_hdmi_write(hdmi, TOP_AIF_HEADER,
> + BYTES_TO_UINT32(0, frame_len, frame_ver, frame_type));
> + mtk_hdmi_write(hdmi, TOP_AIF_PKT00,
> + BYTES_TO_UINT32(buffer[6], buffer[5], buffer[4],
> + buffer[3]));
> + mtk_hdmi_write(hdmi, TOP_AIF_PKT01,
> + BYTES_TO_UINT32(0, 0, buffer[8], buffer[7]));
> + mtk_hdmi_write(hdmi, TOP_AIF_PKT02, 0);
> + mtk_hdmi_write(hdmi, TOP_AIF_PKT03, 0);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, AUD_RPT_EN, AUD_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, AUD_EN_WR | AUD_EN,
> + AUD_EN_WR | AUD_EN);
> +}
> +
> +static void mtk_hdmi_hw_avi_infoframe(struct mtk_hdmi *hdmi, u8 *buffer, u8 len)
> +{
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, AVI_DIS_WR | AVI_DIS,
> + AVI_EN_WR | AVI_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, AVI_RPT_DIS, AVI_RPT_EN);
> +
> + mtk_hdmi_write(hdmi, TOP_AVI_HEADER,
> + BYTES_TO_UINT32(0, buffer[2], buffer[1], buffer[0]));
> +
> + mtk_hdmi_write(hdmi, TOP_AVI_PKT00,
> + BYTES_TO_UINT32(buffer[6], buffer[5], buffer[4],
> + buffer[3]));
> +
> + mtk_hdmi_write(hdmi, TOP_AVI_PKT01,
> + BYTES_TO_UINT32(0, buffer[9], buffer[8], buffer[7]));
> +
> + mtk_hdmi_write(hdmi, TOP_AVI_PKT02,
> + BYTES_TO_UINT32(buffer[13], buffer[12], buffer[11],
> + buffer[10]));
> +
> + mtk_hdmi_write(hdmi, TOP_AVI_PKT03,
> + BYTES_TO_UINT32(0, buffer[16], buffer[15], buffer[14]));
> +
> + mtk_hdmi_write(hdmi, TOP_AVI_PKT04, 0);
> + mtk_hdmi_write(hdmi, TOP_AVI_PKT05, 0);
> +
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, AVI_RPT_EN, AVI_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, AVI_EN_WR | AVI_EN,
> + AVI_EN_WR | AVI_EN);
> +}
> +
> +static void mtk_hdmi_hw_spd_infoframe(struct mtk_hdmi *hdmi, u8 *buffer, u8 len)
> +{
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, SPD_DIS_WR | SPD_DIS,
> + SPD_EN_WR | SPD_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, SPD_RPT_DIS, SPD_RPT_EN);
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_HEADER,
> + BYTES_TO_UINT32(0, buffer[2], buffer[1], buffer[0]));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT00,
> + BYTES_TO_UINT32(buffer[6], buffer[5], buffer[4], buffer[3]));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT01,
> + BYTES_TO_UINT32(0, buffer[9], buffer[8], buffer[7]));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT02,
> + BYTES_TO_UINT32(buffer[13], buffer[12], buffer[11], buffer[10]));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT03,
> + BYTES_TO_UINT32(0, buffer[16], buffer[15], buffer[14]));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT04,
> + BYTES_TO_UINT32(buffer[20], buffer[19], buffer[18], buffer[17]));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT05,
> + BYTES_TO_UINT32(0, buffer[23], buffer[22], buffer[21]));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT06,
> + BYTES_TO_UINT32(buffer[27], buffer[26], buffer[25], buffer[24]));
> +
> + mtk_hdmi_write(hdmi, TOP_SPDIF_PKT07,
> + BYTES_TO_UINT32(0, 0, 0, buffer[28]));
> +
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, SPD_RPT_EN, SPD_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, SPD_EN_WR | SPD_EN,
> + SPD_EN_WR | SPD_EN);
> +}
> +
> +static int mtk_hdmi_setup_audio_infoframe(struct mtk_hdmi *hdmi)
> +{
> + struct hdmi_codec_params *params = &hdmi->aud_param.codec_params;
> + struct hdmi_audio_infoframe frame;
> + u8 buffer[14];
> + ssize_t err;
> +
> + memcpy(&frame, &params->cea, sizeof(struct hdmi_audio_infoframe));
> +
> + err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
> + if (err < 0)
> + return err;
> +
> + mtk_hdmi_hw_audio_infoframe(hdmi, buffer, sizeof(buffer));
> + return 0;
> +}
> +
> +static void mtk_hdmi_hw_send_aud_packet(struct mtk_hdmi *hdmi, bool enable)
> +{
> + if (enable)
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, 0, AUD_PACKET_DROP);
> + else
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, AUD_PACKET_DROP,
> + AUD_PACKET_DROP);
> +}
> +
> +static inline void mtk_hdmi_hw_send_av_mute(struct mtk_hdmi *hdmi)
> +{
> + /*GCP packet */
> + mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_CLR_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_SET_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, 0, CP_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, 0, CP_EN | CP_EN_WR);
> +
> + mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_CLR_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_CFG01, CP_SET_MUTE_EN, CP_SET_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, CP_RPT_EN, CP_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, CP_EN | CP_EN_WR, CP_EN | CP_EN_WR);
> +}
> +
> +static inline void mtk_hdmi_hw_send_av_unmute(struct mtk_hdmi *hdmi)
> +{
> + /*GCP packet */
> + mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_CLR_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_SET_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, 0, CP_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, 0, CP_EN | CP_EN_WR);
> +
> + mtk_hdmi_mask(hdmi, TOP_CFG01, CP_CLR_MUTE_EN, CP_CLR_MUTE_EN);
> + mtk_hdmi_mask(hdmi, TOP_CFG01, 0, CP_SET_MUTE_DIS);
> + mtk_hdmi_mask(hdmi, TOP_INFO_RPT, CP_RPT_EN, CP_RPT_EN);
> + mtk_hdmi_mask(hdmi, TOP_INFO_EN, CP_EN | CP_EN_WR, CP_EN | CP_EN_WR);
> +}
> +
> +static void mtk_hdmi_hw_ncts_enable(struct mtk_hdmi *hdmi, bool enable)
> +{
> + unsigned int data;
> +
> + mtk_hdmi_read(hdmi, AIP_CTRL, &data);
> +
> + if (enable)
> + data |= CTS_SW_SEL;
> + else
> + data &= ~CTS_SW_SEL;
> +
> + mtk_hdmi_write(hdmi, AIP_CTRL, data);
> +}
> +
> +static void mtk_hdmi_hw_aud_set_channel_status(struct mtk_hdmi *hdmi,
> + u8 *channel_status)
> +{
> + /* actually, only the first 5 or 7 bytes of Channel Status
> + * contain useful information
> + */
> + mtk_hdmi_write(hdmi, AIP_I2S_CHST0,
> + BYTES_TO_UINT32(channel_status[3], channel_status[2],
> + channel_status[1], channel_status[0]));
> + mtk_hdmi_write(hdmi, AIP_I2S_CHST1,
> + BYTES_TO_UINT32(0, channel_status[6], channel_status[5],
> + channel_status[4]));
> +}
> +
> +struct hdmi_acr_n {
> + unsigned int clock;
> + unsigned int n[3];
> +};
> +
> +/* Recommended N values from HDMI specification, tables 7-1 to 7-3 */
> +static const struct hdmi_acr_n hdmi_rec_n_table[] = {
> + /* Clock, N: 32kHz 44.1kHz 48kHz */
> + { 25175, { 4576, 7007, 6864 } },
> + { 74176, { 11648, 17836, 11648 } },
> + { 148352, { 11648, 8918, 5824 } },
> + { 296703, { 5824, 4459, 5824 } },
> + { 297000, { 3072, 4704, 5120 } },
> + { 0, { 4096, 6272, 6144 } }, /* all other TMDS clocks */
> +};
> +
> +/**
> + * hdmi_recommended_n() - Return N value recommended by HDMI specification
> + * @freq: audio sample rate in Hz
> + * @clock: rounded TMDS clock in kHz
> + */
> +static int hdmi_recommended_n(unsigned int freq, unsigned int clock)
> +{
> + const struct hdmi_acr_n *recommended;
> + unsigned int i;
> +
> + for (i = 0; i < ARRAY_SIZE(hdmi_rec_n_table) - 1; i++) {
> + if (clock == hdmi_rec_n_table[i].clock)
> + break;
> + }
> +
> + if (i == ARRAY_SIZE(hdmi_rec_n_table))
> + return -EINVAL;
> +
> + recommended = hdmi_rec_n_table + i;
> +
> + switch (freq) {
> + case 32000:
> + return recommended->n[0];
> + case 44100:
> + return recommended->n[1];
> + case 48000:
> + return recommended->n[2];
> + case 88200:
> + return recommended->n[1] * 2;
> + case 96000:
> + return recommended->n[2] * 2;
> + case 176400:
> + return recommended->n[1] * 4;
> + case 192000:
> + return recommended->n[2] * 4;
> + default:
> + return (128 * freq) / 1000;
> + }
> +}
> +
> +static unsigned int hdmi_mode_clock_to_hz(unsigned int clock)
> +{
> + switch (clock) {
> + case 25175:
> + return 25174825; /* 25.2/1.001 MHz */
> + case 74176:
> + return 74175824; /* 74.25/1.001 MHz */
> + case 148352:
> + return 148351648; /* 148.5/1.001 MHz */
> + case 296703:
> + return 296703297; /* 297/1.001 MHz */
> + default:
> + return clock * 1000;
> + }
> +}
> +
> +static unsigned int hdmi_expected_cts(unsigned int audio_sample_rate,
> + unsigned int tmds_clock, unsigned int n)
> +{
> + return DIV_ROUND_CLOSEST_ULL((u64)hdmi_mode_clock_to_hz(tmds_clock) * n,
> + 128 * audio_sample_rate);
> +}
> +
> +static void mtk_hdmi_hw_aud_set_ncts(struct mtk_hdmi *hdmi,
> + unsigned int sample_rate,
> + unsigned int clock)
> +{
> + unsigned int ncts;
> + int n;
> +
> + n = hdmi_recommended_n(sample_rate, clock);
> +
> + if (n == -EINVAL) {
> + DRM_ERROR("Invalid sample rate: %u\n", sample_rate);
> + return;
> + }
> +
> + ncts = hdmi_expected_cts(sample_rate, clock, n);
> + mtk_hdmi_write(hdmi, AIP_N_VAL, n);
> + mtk_hdmi_write(hdmi, AIP_CTS_SVAL, ncts);
> +}
> +
> +static void mtk_hdmi_aud_enable_packet(struct mtk_hdmi *hdmi, bool enable)
> +{
> + mtk_hdmi_hw_send_aud_packet(hdmi, enable);
> +}
> +
> +static void mtk_hdmi_aud_on_off_hw_ncts(struct mtk_hdmi *hdmi, bool on)
> +{
> + mtk_hdmi_hw_ncts_enable(hdmi, on);
> +}
> +
> +static void mtk_hdmi_audio_dsd_config(struct mtk_hdmi *hdmi,
> + unsigned char chnum, bool dsd_bypass)
> +{
> + mtk_hdmi_mask(hdmi, AIP_CTRL, DSD_EN, SPDIF_EN | DSD_EN | HBRA_ON);
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, DSD_MUTE_DATA, DSD_MUTE_DATA);
> + if (dsd_bypass)
> + mtk_hdmi_write(hdmi, TOP_AUD_MAP, 0x75316420);
> + else
> + mtk_hdmi_write(hdmi, TOP_AUD_MAP, 0x04230150);
> +
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0, I2S2DSD_EN);
> +}
> +
> +static inline void mtk_hdmi_hw_i2s_fifo_map(struct mtk_hdmi *hdmi,
> + unsigned int fifo_mapping)
> +{
> + mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, fifo_mapping,
> + FIFO3_MAP | FIFO2_MAP | FIFO1_MAP | FIFO0_MAP);
> +}
> +
> +static inline void mtk_hdmi_hw_i2s_ch_number(struct mtk_hdmi *hdmi,
> + unsigned int chnum)
> +{
> + mtk_hdmi_mask(hdmi, AIP_CTRL, chnum << I2S_EN_SHIFT, I2S_EN);
> +}
> +
> +static void mtk_hdmi_hw_i2s_ch_mapping(struct mtk_hdmi *hdmi,
> + unsigned char chnum,
> + unsigned char mapping)
> +{
> + unsigned int bdata;
> +
> + switch (chnum) {
> + case 2:
> + bdata = 0x1;
> + break;
> + case 3:
> + bdata = 0x3;
> + break;
> + case 6:
> + if (mapping == 0x0E) {
> + bdata = 0xf;
> + break;
> + }
> + fallthrough;
> + case 5:
> + bdata = 0x7;
> + break;
> + case 7:
> + case 8:
> + bdata = 0xf;
> + break;
> + default:
> + bdata = 0x1;
> + }
> +
> + mtk_hdmi_hw_i2s_fifo_map(hdmi, (MAP_SD3 << 6) | (MAP_SD2 << 4) |
> + (MAP_SD1 << 2) | (MAP_SD0 << 0));
> + mtk_hdmi_hw_i2s_ch_number(hdmi, bdata);
> +
> + if (chnum == 2)
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, LAYOUT0, LAYOUT1);
> + else
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, LAYOUT1, LAYOUT1);
> +}
> +
> +static void mtk_hdmi_i2s_data_fmt(struct mtk_hdmi *hdmi, unsigned char fmt)
> +{
> + unsigned int u4Data;
> +
> + mtk_hdmi_read(hdmi, AIP_I2S_CTRL, &u4Data);
> + u4Data &= ~(WS_HIGH | I2S_1ST_BIT_NOSHIFT | JUSTIFY_RIGHT);
> +
> + switch (fmt) {
> + case HDMI_I2S_MODE_RJT_24BIT:
> + case HDMI_I2S_MODE_RJT_16BIT:
> + u4Data |= (WS_HIGH | I2S_1ST_BIT_NOSHIFT | JUSTIFY_RIGHT);
> + u4Data |= (WS_HIGH | I2S_1ST_BIT_NOSHIFT | JUSTIFY_RIGHT);
> + break;
> +
> + case HDMI_I2S_MODE_LJT_24BIT:
> + case HDMI_I2S_MODE_LJT_16BIT:
> + u4Data |= (WS_HIGH | I2S_1ST_BIT_NOSHIFT);
> + u4Data |= (WS_HIGH | I2S_1ST_BIT_NOSHIFT);
> + break;
> +
> + case HDMI_I2S_MODE_I2S_24BIT:
> + case HDMI_I2S_MODE_I2S_16BIT:
> + default:
> + break;
> + }
> + mtk_hdmi_write(hdmi, AIP_I2S_CTRL, u4Data);
> +}
> +
> +static inline void mtk_hdmi_i2s_sck_edge(struct mtk_hdmi *hdmi,
> + unsigned int edge)
> +{
> + mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, edge, SCK_EDGE_RISE);
> +}
> +
> +static inline void mtk_hdmi_i2s_cbit_order(struct mtk_hdmi *hdmi,
> + unsigned int cbit)
> +{
> + mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, cbit, CBIT_ORDER_SAME);
> +}
> +
> +static inline void mtk_hdmi_i2s_vbit(struct mtk_hdmi *hdmi, unsigned int vbit)
> +{
> + mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, vbit, VBIT_COM);
> +}
> +
> +static inline void mtk_hdmi_i2s_data_direction(struct mtk_hdmi *hdmi,
> + unsigned int data_dir)
> +{
> + mtk_hdmi_mask(hdmi, AIP_I2S_CTRL, data_dir, DATA_DIR_LSB);
> +}
> +
> +static inline void mtk_hdmi_hw_audio_type(struct mtk_hdmi *hdmi,
> + unsigned int spdif_i2s)
> +{
> + mtk_hdmi_mask(hdmi, AIP_CTRL, spdif_i2s << SPDIF_EN_SHIFT, SPDIF_EN);
> +}
> +
> +static unsigned char mtk_hdmi_get_i2s_ch_mapping(struct mtk_hdmi *hdmi,
> + unsigned char channel_type)
> +{
> + unsigned char channelmap = 0x00;
> +
> + switch (channel_type) {
> + case HDMI_AUD_CHAN_TYPE_1_1:
> + case HDMI_AUD_CHAN_TYPE_2_1:
> + channelmap = 0x01;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_3_0:
> + channelmap = 0x02;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_3_1:
> + channelmap = 0x03;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_3_0_LRS:
> + case HDMI_AUD_CHAN_TYPE_4_0:
> + channelmap = 0x08;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_5_1:
> + channelmap = 0x0B;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_4_1_CLRS:
> + case HDMI_AUD_CHAN_TYPE_6_0:
> + case HDMI_AUD_CHAN_TYPE_6_0_CS:
> + case HDMI_AUD_CHAN_TYPE_6_0_CH:
> + case HDMI_AUD_CHAN_TYPE_6_0_OH:
> + case HDMI_AUD_CHAN_TYPE_6_0_CHR:
> + channelmap = 0x0E;
> + break;
> +
> + case HDMI_AUD_CHAN_TYPE_1_0:
> + case HDMI_AUD_CHAN_TYPE_2_0:
> + case HDMI_AUD_CHAN_TYPE_3_1_LRS:
> + case HDMI_AUD_CHAN_TYPE_4_1:
> + case HDMI_AUD_CHAN_TYPE_5_0:
> + case HDMI_AUD_CHAN_TYPE_4_0_CLRS:
> + case HDMI_AUD_CHAN_TYPE_6_1:
> + case HDMI_AUD_CHAN_TYPE_6_1_CS:
> + case HDMI_AUD_CHAN_TYPE_6_1_CH:
> + case HDMI_AUD_CHAN_TYPE_6_1_OH:
> + case HDMI_AUD_CHAN_TYPE_6_1_CHR:
> + case HDMI_AUD_CHAN_TYPE_7_0:
> + case HDMI_AUD_CHAN_TYPE_7_0_LH_RH:
> + case HDMI_AUD_CHAN_TYPE_7_0_LSR_RSR:
> + case HDMI_AUD_CHAN_TYPE_7_0_LC_RC:
> + case HDMI_AUD_CHAN_TYPE_7_0_LW_RW:
> + case HDMI_AUD_CHAN_TYPE_7_0_LSD_RSD:
> + case HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS:
> + case HDMI_AUD_CHAN_TYPE_7_0_LHS_RHS:
> + case HDMI_AUD_CHAN_TYPE_7_0_CS_CH:
> + case HDMI_AUD_CHAN_TYPE_7_0_CS_OH:
> + case HDMI_AUD_CHAN_TYPE_7_0_CS_CHR:
> + case HDMI_AUD_CHAN_TYPE_7_0_CH_OH:
> + case HDMI_AUD_CHAN_TYPE_7_0_CH_CHR:
> + case HDMI_AUD_CHAN_TYPE_7_0_OH_CHR:
> + case HDMI_AUD_CHAN_TYPE_7_0_LSS_RSS_LSR_RSR:
> + case HDMI_AUD_CHAN_TYPE_8_0_LH_RH_CS:
> + case HDMI_AUD_CHAN_TYPE_7_1:
> + case HDMI_AUD_CHAN_TYPE_7_1_LH_RH:
> + case HDMI_AUD_CHAN_TYPE_7_1_LSR_RSR:
> + case HDMI_AUD_CHAN_TYPE_7_1_LC_RC:
> + case HDMI_AUD_CHAN_TYPE_7_1_LW_RW:
> + case HDMI_AUD_CHAN_TYPE_7_1_LSD_RSD:
> + case HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS:
> + case HDMI_AUD_CHAN_TYPE_7_1_LHS_RHS:
> + case HDMI_AUD_CHAN_TYPE_7_1_CS_CH:
> + case HDMI_AUD_CHAN_TYPE_7_1_CS_OH:
> + case HDMI_AUD_CHAN_TYPE_7_1_CS_CHR:
> + case HDMI_AUD_CHAN_TYPE_7_1_CH_OH:
> + case HDMI_AUD_CHAN_TYPE_7_1_CH_CHR:
> + case HDMI_AUD_CHAN_TYPE_7_1_OH_CHR:
> + case HDMI_AUD_CHAN_TYPE_7_1_LSS_RSS_LSR_RSR:
> + channelmap = 0x00;
> + break;
> + }
> +
> + return channelmap;
> +}
> +
> +static inline void mtk_hdmi_hw_i2s_ch_swap(struct mtk_hdmi *hdmi,
> + unsigned char swapbit)
> +{
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, swapbit << 20, 0x0F << 20);
> +}
> +
> +static void mtk_hdmi_hbr_config(struct mtk_hdmi *hdmi, bool dsd_bypass)
> +{
> + if (dsd_bypass) {
> + mtk_hdmi_mask(hdmi, AIP_CTRL, HBRA_ON,
> + SPDIF_EN | DSD_EN | HBRA_ON);
> + mtk_hdmi_mask(hdmi, AIP_CTRL, I2S_EN, I2S_EN);
> + } else {
> + mtk_hdmi_mask(hdmi, AIP_CTRL, SPDIF_EN,
> + SPDIF_EN | DSD_EN | HBRA_ON);
> + mtk_hdmi_mask(hdmi, AIP_CTRL, SPDIF_INTERNAL_MODULE,
> + SPDIF_INTERNAL_MODULE);
> + mtk_hdmi_mask(hdmi, AIP_CTRL, HBR_FROM_SPDIF, HBR_FROM_SPDIF);
> + mtk_hdmi_mask(hdmi, AIP_CTRL, CTS_CAL_N4, CTS_CAL_N4);
> + }
> +}
> +
> +static inline void mtk_hdmi_hw_spdif_config(struct mtk_hdmi *hdmi)
> +{
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, WR_1UI_UNLOCK, WR_1UI_LOCK);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, FS_UNOVERRIDE, FS_OVERRIDE_WRITE);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, WR_2UI_UNLOCK, WR_2UI_LOCK);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0x4 << MAX_1UI_WRITE_SHIFT,
> + MAX_1UI_WRITE);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0x9 << MAX_2UI_WRITE_SHIFT,
> + MAX_2UI_WRITE);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0x4 << AUD_ERR_THRESH_SHIFT,
> + AUD_ERR_THRESH);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, I2S2DSD_EN, I2S2DSD_EN);
> +}
> +
> +static void mtk_hdmi_aud_set_input(struct mtk_hdmi *hdmi)
> +{
> + unsigned char ChMapping;
> +
> + mtk_hdmi_write(hdmi, TOP_AUD_MAP,
> + C_SD7 + C_SD6 + C_SD5 + C_SD4 + C_SD3 + C_SD2 + C_SD1 +
> + C_SD0);
> + mtk_hdmi_mask(hdmi, AIP_SPDIF_CTRL, 0, 0x0F << 20);
> + mtk_hdmi_mask(hdmi, AIP_CTRL, 0,
> + SPDIF_EN | DSD_EN | HBRA_ON | CTS_CAL_N4 |
> + HBR_FROM_SPDIF | SPDIF_INTERNAL_MODULE);
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, 0, DSD_MUTE_DATA | LAYOUT1);
> +
> + if (hdmi->aud_param.aud_input_type == HDMI_AUD_INPUT_I2S) {
> + if (hdmi->aud_param.aud_codec == HDMI_AUDIO_CODING_TYPE_DSD) {
> + mtk_hdmi_audio_dsd_config(hdmi, hdmi->aud_param.codec_params.channels, 0);
> + mtk_hdmi_hw_i2s_ch_mapping(hdmi, hdmi->aud_param.codec_params.channels, 1);
> + } else {
> + mtk_hdmi_i2s_data_fmt(hdmi, hdmi->aud_param.aud_i2s_fmt);
> + mtk_hdmi_i2s_sck_edge(hdmi, SCK_EDGE_RISE);
> + mtk_hdmi_i2s_cbit_order(hdmi, CBIT_ORDER_SAME);
> + mtk_hdmi_i2s_vbit(hdmi, VBIT_PCM);
> + mtk_hdmi_i2s_data_direction(hdmi, DATA_DIR_MSB);
> + mtk_hdmi_hw_audio_type(hdmi, HDMI_AUD_INPUT_I2S);
> + ChMapping = mtk_hdmi_get_i2s_ch_mapping(hdmi, hdmi->aud_param.aud_input_chan_type);
> + mtk_hdmi_hw_i2s_ch_mapping(hdmi, hdmi->aud_param.codec_params.channels, ChMapping);
> + mtk_hdmi_hw_i2s_ch_swap(hdmi, LFE_CC_SWAP);
> + }
> + } else {
> + if (hdmi->aud_param.aud_input_type == HDMI_AUD_INPUT_SPDIF &&
> + (hdmi->aud_param.aud_codec ==
> + HDMI_AUDIO_CODING_TYPE_DTS_HD ||
> + hdmi->aud_param.aud_codec ==
> + HDMI_AUDIO_CODING_TYPE_MLP) &&
> + hdmi->aud_param.codec_params.sample_rate == 768000) {
> + mtk_hdmi_hbr_config(hdmi, false);
> + } else {
> + mtk_hdmi_hw_spdif_config(hdmi);
> + mtk_hdmi_hw_i2s_ch_mapping(hdmi, 2, 0);
> + }
> + }
> +}
> +
> +static void mtk_hdmi_aud_set_sw_ncts(struct mtk_hdmi *hdmi,
> + struct drm_display_mode *display_mode)
> +{
> + unsigned int sample_rate = hdmi->aud_param.codec_params.sample_rate;
> +
> + mtk_hdmi_aud_on_off_hw_ncts(hdmi, false);
> +
> + mtk_hdmi_hw_aud_set_ncts(hdmi, sample_rate, display_mode->clock);
> +}
> +
> +static inline void mtk_hdmi_hw_audio_input_enable(struct mtk_hdmi *hdmi,
> + unsigned int enable)
> +{
> + if (enable)
> + mtk_hdmi_mask(hdmi, AIP_CTRL, AUD_IN_EN, AUD_IN_EN);
> + else
> + mtk_hdmi_mask(hdmi, AIP_CTRL, 0x0 << AUD_IN_EN_SHIFT,
> + AUD_IN_EN);
> +}
> +
> +static void mtk_hdmi_aip_ctrl_init(struct mtk_hdmi *hdmi)
> +{
> + mtk_hdmi_mask(hdmi, AIP_CTRL,
> + AUD_SEL_OWRT | NO_MCLK_CTSGEN_SEL | CTS_REQ_EN,
> + AUD_SEL_OWRT | NO_MCLK_CTSGEN_SEL | MCLK_EN | CTS_REQ_EN);
> + mtk_hdmi_mask(hdmi, AIP_TPI_CTRL, TPI_AUDIO_LOOKUP_DIS,
> + TPI_AUDIO_LOOKUP_EN);
> +}
> +
> +static void mtk_hdmi_audio_reset(struct mtk_hdmi *hdmi, bool rst)
> +{
> + if (rst)
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL,
> + RST4AUDIO | RST4AUDIO_FIFO | RST4AUDIO_ACR,
> + RST4AUDIO | RST4AUDIO_FIFO | RST4AUDIO_ACR);
> + else
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, 0,
> + RST4AUDIO | RST4AUDIO_FIFO | RST4AUDIO_ACR);
> +}
> +
> +static void mtk_hdmi_aud_output_config(struct mtk_hdmi *hdmi,
> + struct drm_display_mode *display_mode)
> +{
> + mtk_hdmi_aud_enable_packet(hdmi, false);
> + mtk_hdmi_audio_reset(hdmi, true);
> + mtk_hdmi_aip_ctrl_init(hdmi);
> + mtk_hdmi_aud_set_input(hdmi);
> + mtk_hdmi_hw_aud_set_channel_status(hdmi, hdmi->aud_param.codec_params.iec.status);
> + mtk_hdmi_setup_audio_infoframe(hdmi);
> + mtk_hdmi_hw_audio_input_enable(hdmi, true);
> + mtk_hdmi_audio_reset(hdmi, false);
> + mtk_hdmi_aud_set_sw_ncts(hdmi, display_mode);
> + usleep_range(25, 50);
> + mtk_hdmi_aud_on_off_hw_ncts(hdmi, true);
> + mtk_hdmi_aud_enable_packet(hdmi, true);
> +}
> +
> +void mtk_hdmi_output_init_mt8195(struct mtk_hdmi *hdmi)
> +{
> + struct hdmi_audio_param *aud_param = &hdmi->aud_param;
> +
> + aud_param->aud_codec = HDMI_AUDIO_CODING_TYPE_PCM;
> + aud_param->aud_sampe_size = HDMI_AUDIO_SAMPLE_SIZE_16;
> + aud_param->aud_input_type = HDMI_AUD_INPUT_I2S;
> + aud_param->aud_i2s_fmt = HDMI_I2S_MODE_I2S_24BIT;
> + aud_param->aud_mclk = HDMI_AUD_MCLK_128FS;
> + aud_param->aud_input_chan_type = HDMI_AUD_CHAN_TYPE_2_0;
> +
> + hdmi->hpd = HDMI_PLUG_OUT;
> + hdmi->set_csp_depth = RGB444_8bit;
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_8_BIT;
> + hdmi->colorimtery = HDMI_COLORIMETRY_NONE;
> + hdmi->extended_colorimetry = HDMI_EXTENDED_COLORIMETRY_RESERVED;
> + hdmi->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
> + hdmi->ycc_quantization_range = HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
> +}
> +
> +static void mtk_hdmi_reset_colorspace_setting(struct mtk_hdmi *hdmi)
> +{
> + hdmi->set_csp_depth = RGB444_8bit;
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_8_BIT;
> + hdmi->colorimtery = HDMI_COLORIMETRY_NONE;
> + hdmi->extended_colorimetry = HDMI_EXTENDED_COLORIMETRY_RESERVED;
> + hdmi->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
> + hdmi->ycc_quantization_range = HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
> +}
> +
> +static void mtk_hdmi_change_video_resolution(struct mtk_hdmi *hdmi)
> +{
> + bool is_over_340M = false;
> + bool is_hdmi_sink = false;
> +
> + mtk_hdmi_hw_reset(hdmi);
> + mtk_hdmi_set_sw_hpd(hdmi, true);
> + usleep_range(2, 5);
> +
> + mtk_hdmi_write(hdmi, HDCP_TOP_CTRL, 0x0);
> + mtk_hdmi_en_hdcp_reauth_int(hdmi, true);
> + mtk_hdmi_enable_hpd_pord_irq(hdmi, true);
> + mtk_hdmi_force_hdcp_hpd(hdmi);
> +
> + is_hdmi_sink = mtk_hdmi_sink_is_hdmi_device(hdmi);
> + mtk_hdmi_set_deep_color(hdmi, is_hdmi_sink);
> + mtk_hdmi_enable_hdmi_mode(hdmi, is_hdmi_sink);
> +
> + usleep_range(5, 10);
> + mtk_hdmi_hw_vid_black(hdmi, true);
> + mtk_hdmi_hw_send_av_unmute(hdmi);
> +
> + mtk_hdmi_mask(hdmi, TOP_CFG01, NULL_PKT_VSYNC_HIGH_EN,
> + NULL_PKT_VSYNC_HIGH_EN | NULL_PKT_EN);
> +
> + is_over_340M = mtk_hdmi_tmds_over_340M(hdmi);
> + mtk_hdmi_enable_scrambling(hdmi, is_over_340M);
> +
> + if (hdmi->csp == HDMI_COLORSPACE_YUV420)
> + mtk_hdmi_yuv420_downsample(hdmi, true);
> + else
> + mtk_hdmi_yuv420_downsample(hdmi, false);
> +}
> +
> +static void mtk_hdmi_output_set_display_mode(struct mtk_hdmi *hdmi,
> + struct drm_display_mode *mode)
> +{
> + int ret;
> + union phy_configure_opts opts = {
> + .dp = { .link_rate = hdmi->mode.clock * 1000 }
> + };
> +
> + ret = phy_configure(hdmi->phy, &opts);
> + if (ret)
> + dev_err(hdmi->dev, "Setting clock=%d failed: %d", mode->clock, ret);
> +
> + mtk_hdmi_change_video_resolution(hdmi);
> + mtk_hdmi_aud_output_config(hdmi, mode);
> +}
> +
> +int mtk_hdmi_clk_enable_mt8195(struct mtk_hdmi *hdmi)
> +{
> + int ret;
> +
> + ret = clk_prepare_enable(hdmi->clk[MTK_MT8195_HDIM_HDCP_SEL]);
> + if (ret)
> + return ret;
> + ret = clk_prepare_enable(hdmi->clk[MTK_MT8195_HDMI_HDCP_24M_SEL]);
> + if (ret)
> + return ret;
> + ret = clk_prepare_enable(hdmi->clk[MTK_MT8195_HDMI_VPP_SPLIT_HDMI]);
> +
> + return ret;
> +}
> +
> +void mtk_hdmi_clk_disable_mt8195(struct mtk_hdmi *hdmi)
> +{
> + clk_disable_unprepare(hdmi->clk[MTK_MT8195_HDIM_HDCP_SEL]);
> + clk_disable_unprepare(hdmi->clk[MTK_MT8195_HDMI_HDCP_24M_SEL]);
> + clk_disable_unprepare(hdmi->clk[MTK_MT8195_HDMI_VPP_SPLIT_HDMI]);
> +}
> +
> +static void mtk_hdmi_hpd_event(enum hdmi_hpd_state hpd, struct device *dev)
> +{
> + struct mtk_hdmi *hdmi = dev_get_drvdata(dev);
> +
> + if (hdmi && hdmi->bridge.encoder && hdmi->bridge.encoder->dev)
> + drm_helper_hpd_irq_event(hdmi->bridge.encoder->dev);
> +}
> +
> +static enum hdmi_hpd_state mtk_hdmi_hpd_pord_status(struct mtk_hdmi *hdmi)
> +{
> + unsigned int hpd_status;
> +
> + mtk_hdmi_read(hdmi, HPD_DDC_STATUS, &hpd_status);
> + if ((hpd_status & (HPD_PIN_STA | PORD_PIN_STA)) ==
> + (HPD_PIN_STA | PORD_PIN_STA))
> + return HDMI_PLUG_IN_AND_SINK_POWER_ON;
> + else if ((hpd_status & (HPD_PIN_STA | PORD_PIN_STA)) == PORD_PIN_STA)
> + return HDMI_PLUG_IN_ONLY;
> + else
> + return HDMI_PLUG_OUT;
> +}
> +
> +static irqreturn_t mtk_hdmi_isr(int irq, void *arg)
> +{
> + struct mtk_hdmi *hdmi = arg;
> + unsigned int int_status;
> + int ret = IRQ_HANDLED;
> +
> + mtk_hdmi_read(hdmi, TOP_INT_STA00, &int_status);
> +
> + /* handle hpd interrupt */
> + if (int_status & (PORD_F_INT_STA | PORD_R_INT_STA | HTPLG_F_INT_STA |
> + HTPLG_R_INT_STA)) {
> + mtk_hdmi_enable_hpd_pord_irq(hdmi, false);
> + mtk_hdmi_clr_htplg_pord_irq(hdmi);
> + ret = IRQ_WAKE_THREAD;
> + }
> +
> + /*clear all tx irq*/
> + mtk_hdmi_clr_all_int_status(hdmi);
> +
> + return ret;
> +}
> +
> +static irqreturn_t mtk_hdmi_hpd_work_handle(int irq, void *arg)
> +{
> + struct mtk_hdmi *hdmi = arg;
> + enum hdmi_hpd_state hpd;
> +
> + hpd = mtk_hdmi_hpd_pord_status(hdmi);
> + if (hpd != hdmi->hpd) {
> + hdmi->hpd = hpd;
> + mtk_hdmi_hpd_event(hpd, hdmi->dev);
> + }
> +
> + mtk_hdmi_enable_hpd_pord_irq(hdmi, true);
> + return IRQ_HANDLED;
> +}
> +
> +static int mtk_hdmi_enable_disable(struct mtk_hdmi *hdmi, bool enable)
> +{
> + int ret;
> +
> + if (enable && !hdmi->hdmi_enabled) {
> + if (!hdmi->power_clk_enabled) {
> + /* power domain on */
> + ret = pm_runtime_get_sync(hdmi->dev);
> +
> + /* clk on */
> + mtk_hdmi_clk_enable_mt8195(hdmi);
> + hdmi->power_clk_enabled = true;
> + }
> +
> + if (!hdmi->irq_registered) {
> + /* disable all tx interrupts */
> + mtk_hdmi_disable_all_int(hdmi);
> + /* request irq */
> + hdmi->hdmi_irq =
> + irq_of_parse_and_map(hdmi->dev->of_node, 0);
> + ret = request_threaded_irq(hdmi->hdmi_irq, mtk_hdmi_isr,
> + mtk_hdmi_hpd_work_handle,
> + IRQF_TRIGGER_HIGH, "hdmiirq",
> + hdmi);
> + hdmi->irq_registered = true;
> + /* enable hpd interrupt */
> + mtk_hdmi_set_sw_hpd(hdmi, true);
> + mtk_hdmi_enable_hpd_pord_irq(hdmi, true);
> + }
> +
> + } else if (!enable && hdmi->hdmi_enabled) {
> + if (hdmi->irq_registered) {
> + /* free irq */
> + free_irq(hdmi->hdmi_irq, NULL);
> + hdmi->irq_registered = false;
> + }
> +
> + if (hdmi->power_clk_enabled) {
> + /* clk disable */
> + mtk_hdmi_clk_disable_mt8195(hdmi);
> + /* power domain off */
> + ret = pm_runtime_put_sync(hdmi->dev);
> + hdmi->power_clk_enabled = false;
> + }
> + }
> +
> + hdmi->hdmi_enabled = enable;
> +
> + return 0;
> +}
> +
> +static const struct drm_prop_enum_list csp_depth_props[] = {
> + { __builtin_ffs(RGB444_8bit), "RGB444_8bit" },
> + { __builtin_ffs(RGB444_10bit), "RGB444_10bit" },
> + { __builtin_ffs(RGB444_12bit), "RGB444_10bit" },
> + { __builtin_ffs(RGB444_16bit), "RGB444_16bit" },
> + { __builtin_ffs(YCBCR444_8bit), "YCBCR444_8bit" },
> + { __builtin_ffs(YCBCR444_10bit), "YCBCR444_10bit" },
> + { __builtin_ffs(YCBCR444_12bit), "YCBCR444_12bit" },
> + { __builtin_ffs(YCBCR444_16bit), "YCBCR444_16bit" },
> + { __builtin_ffs(YCBCR422_8bit_NO_SUPPORT), "YCBCR422_8bit_NO_SUPPORT" },
> + { __builtin_ffs(YCBCR422_10bit_NO_SUPPORT),
> + "YCBCR422_10bit_NO_SUPPORT" },
> + { __builtin_ffs(YCBCR422_12bit), "YCBCR422_12bit" },
> + { __builtin_ffs(YCBCR422_16bit_NO_SUPPORT),
> + "YCBCR422_16bit_NO_SUPPORT" },
> + { __builtin_ffs(YCBCR420_8bit), "YCBCR420_8bit" },
> + { __builtin_ffs(YCBCR420_10bit), "YCBCR420_10bit" },
> + { __builtin_ffs(YCBCR420_12bit), "YCBCR420_12bit" },
> + { __builtin_ffs(YCBCR420_16bit), "YCBCR420_16bit" },
> +};
> +
> +static void mtk_hdmi_convert_colorspace_depth(struct mtk_hdmi *hdmi)
> +{
> + switch (hdmi->set_csp_depth) {
> + case RGB444_8bit:
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_8_BIT;
> + break;
> + case RGB444_10bit:
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_10_BIT;
> + break;
> + case RGB444_12bit:
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_12_BIT;
> + break;
> + case RGB444_16bit:
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_16_BIT;
> + break;
> + case YCBCR444_8bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV444;
> + hdmi->color_depth = HDMI_8_BIT;
> + break;
> + case YCBCR444_10bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV444;
> + hdmi->color_depth = HDMI_10_BIT;
> + break;
> + case YCBCR444_12bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV444;
> + hdmi->color_depth = HDMI_12_BIT;
> + break;
> + case YCBCR444_16bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV444;
> + hdmi->color_depth = HDMI_16_BIT;
> + break;
> + case YCBCR422_12bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV422;
> + hdmi->color_depth = HDMI_12_BIT;
> + break;
> + case YCBCR420_8bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV420;
> + hdmi->color_depth = HDMI_8_BIT;
> + break;
> + case YCBCR420_10bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV420;
> + hdmi->color_depth = HDMI_10_BIT;
> + break;
> + case YCBCR420_12bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV420;
> + hdmi->color_depth = HDMI_12_BIT;
> + break;
> + case YCBCR420_16bit:
> + hdmi->csp = HDMI_COLORSPACE_YUV420;
> + hdmi->color_depth = HDMI_16_BIT;
> + break;
> + default:
> +
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_8_BIT;
> + }
> +}
> +
> +static int mtk_hdmi_conn_get_modes(struct drm_connector *conn)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn);
> + struct edid *edid;
> + int ret;
> +
> + if (!hdmi->ddc_adpt)
> + return -ENODEV;
> +
> + edid = drm_get_edid(conn, hdmi->ddc_adpt);
> + if (!edid)
> + return -ENODEV;
> +
> + hdmi->dvi_mode = !drm_detect_hdmi_monitor(edid);
> +
> + drm_connector_update_edid_property(conn, edid);
> +
> + ret = drm_add_edid_modes(conn, edid);
> +
> + kfree(edid);
> +
> + return ret;
> +}
> +
> +static int mtk_hdmi_conn_mode_valid(struct drm_connector *conn,
> + struct drm_display_mode *mode)
> +{
> + if (mode->clock < 27000)
> + return MODE_CLOCK_LOW;
> + if (mode->clock > 594000)
> + return MODE_CLOCK_HIGH;
> +
> + return drm_mode_validate_size(mode, 0x1fff, 0x1fff);
> +}
> +
> +static struct drm_encoder *mtk_hdmi_conn_best_enc(struct drm_connector *conn)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_conn(conn);
> +
> + return hdmi->bridge.encoder;
> +}
> +
> +static const struct drm_connector_helper_funcs mtk_hdmi_connector_helper_funcs = {
> + .get_modes = mtk_hdmi_conn_get_modes,
> + .mode_valid = mtk_hdmi_conn_mode_valid,
> + .best_encoder = mtk_hdmi_conn_best_enc,
> +};
> +
> +/*
> + * Bridge callbacks
> + */
> +
> +static int mtk_hdmi_bridge_attach(struct drm_bridge *bridge,
> + enum drm_bridge_attach_flags flags)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> + int ret;
> +
> + if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) {
> + DRM_ERROR("The flag DRM_BRIDGE_ATTACH_NO_CONNECTOR must be supplied\n");
> + return -EINVAL;
> + }
> + if (hdmi->next_bridge) {
> + ret = drm_bridge_attach(bridge->encoder, hdmi->next_bridge, bridge, flags);
> + if (ret)
> + return ret;
> + }
> +
> + pm_runtime_enable(hdmi->dev);
> + mtk_hdmi_enable_disable(hdmi, true);
> +
> + return 0;
> +}
> +
> +static void mtk_hdmi_bridge_disable(struct drm_bridge *bridge,
> + struct drm_bridge_state *old_bridge_state)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> +
> + if (!hdmi->enabled)
> + return;
> +
> + mtk_hdmi_hw_send_av_mute(hdmi);
> + usleep_range(50000, 50050);
> + mtk_hdmi_hw_vid_black(hdmi, true);
> + mtk_hdmi_disable_hdcp_encrypt(hdmi);
> + usleep_range(50000, 50050);
> +
> + hdmi->enabled = false;
> +}
> +
> +static void mtk_hdmi_bridge_post_disable(struct drm_bridge *bridge,
> + struct drm_bridge_state *old_state)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> +
> + if (!hdmi->powered)
> + return;
> +
> + phy_power_off(hdmi->phy);
> +
> + hdmi->powered = false;
> +
> + mtk_hdmi_reset_colorspace_setting(hdmi);
> +}
> +
> +static void mtk_hdmi_bridge_pre_enable(struct drm_bridge *bridge,
> + struct drm_bridge_state *old_state)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> + union phy_configure_opts opts = {
> + .dp = { .link_rate = hdmi->mode.clock * 1000 }
> + };
> +
> + mtk_hdmi_convert_colorspace_depth(hdmi);
> + mtk_hdmi_output_set_display_mode(hdmi, &hdmi->mode);
> + /* configuring phy clock link with appropriate rate */
> + phy_configure(hdmi->phy, &opts);
> + phy_power_on(hdmi->phy);
> + hdmi->powered = true;
> +}
> +
> +static void mtk_hdmi_bridge_enable(struct drm_bridge *bridge,
> + struct drm_bridge_state *old_state)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> + u8 buffer_spd[HDMI_INFOFRAME_SIZE(SPD)];
> + u8 buffer_avi[HDMI_INFOFRAME_SIZE(AVI)];
> +
> + phy_power_on(hdmi->phy);
> + mtk_hdmi_send_infoframe(hdmi, buffer_spd, sizeof(buffer_spd),
> + buffer_avi, sizeof(buffer_avi), &hdmi->mode);
> + mtk_hdmi_hw_spd_infoframe(hdmi, buffer_spd, sizeof(buffer_spd));
> + mtk_hdmi_hw_avi_infoframe(hdmi, buffer_avi, sizeof(buffer_avi));
> +
> + mtk_hdmi_hw_vid_black(hdmi, false);
> +
> + hdmi->enabled = true;
> +}
> +
> +static enum drm_connector_status mtk_hdmi_bridge_detect(struct drm_bridge *bridge)
> +{
> + struct mtk_hdmi *hdmi = hdmi_ctx_from_bridge(bridge);
> +
> + if (hdmi->hpd != HDMI_PLUG_IN_AND_SINK_POWER_ON &&
> + hdmi->hpd != HDMI_PLUG_IN_ONLY) {
> + hdmi->support_csp_depth = RGB444_8bit;
> + hdmi->set_csp_depth = RGB444_8bit;
> + hdmi->csp = HDMI_COLORSPACE_RGB;
> + hdmi->color_depth = HDMI_8_BIT;
> + hdmi->colorimtery = HDMI_COLORIMETRY_NONE;
> + hdmi->extended_colorimetry = HDMI_EXTENDED_COLORIMETRY_RESERVED;
> + hdmi->quantization_range = HDMI_QUANTIZATION_RANGE_DEFAULT;
> + hdmi->ycc_quantization_range =
> + HDMI_YCC_QUANTIZATION_RANGE_LIMITED;
> + }
> +
> + return (hdmi->hpd != HDMI_PLUG_OUT) ? connector_status_connected :
> + connector_status_disconnected;
> +}
> +
> +const struct drm_bridge_funcs mtk_mt8195_hdmi_bridge_funcs = {
> + .attach = mtk_hdmi_bridge_attach,
> + .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
> + .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
> + .atomic_reset = drm_atomic_helper_bridge_reset,
> + .mode_fixup = mtk_hdmi_bridge_mode_fixup,
> + .atomic_disable = mtk_hdmi_bridge_disable,
> + .atomic_post_disable = mtk_hdmi_bridge_post_disable,
> + .mode_set = mtk_hdmi_bridge_mode_set,
> + .atomic_pre_enable = mtk_hdmi_bridge_pre_enable,
> + .atomic_enable = mtk_hdmi_bridge_enable,
> + .get_edid = mtk_hdmi_bridge_get_edid,
> + .detect = mtk_hdmi_bridge_detect,
> +};
> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h
> new file mode 100644
> index 000000000000..f59aea51dc74
> --- /dev/null
> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.h
> @@ -0,0 +1,29 @@
> +/* SPDX-License-Identifier: GPL-2.0 */
> +/*
> + * Copyright (c) 2022 MediaTek Inc.
> + * Copyright (c) 2022 BayLibre, SAS
> + */
> +
> +#ifndef _MTK_HDMI_MT8195_CTRL_H
> +#define _MTK_HDMI_MT8195_CTRL_H
> +
> +#include <linux/hdmi.h>
> +#include <drm/drm_bridge.h>
> +
> +struct mtk_hdmi;
> +
> +extern struct platform_driver mtk_hdmi_mt8195_ddc_driver;
> +extern const struct drm_bridge_funcs mtk_mt8195_hdmi_bridge_funcs;
> +void mtk_hdmi_output_init_mt8195(struct mtk_hdmi *hdmi);
> +int mtk_hdmi_clk_enable_mt8195(struct mtk_hdmi *hdmi);
> +void mtk_hdmi_clk_disable_mt8195(struct mtk_hdmi *hdmi);
> +
> +enum mtk_hdmi_clk_id_mt8195 {
> + MTK_MT8195_HDIM_HDCP_SEL,
> + MTK_MT8195_HDMI_HDCP_24M_SEL,
> + MTK_MT8195_HDMI_VPP_SPLIT_HDMI,
> + MTK_MT8195_HDMI_CLK_COUNT,
> +};
> +
> +extern const char *const mtk_hdmi_clk_names_mt8195[MTK_MT8195_HDMI_CLK_COUNT];
> +#endif /* _MTK_HDMI_MT8195_CTRL_H */
> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.c b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.c
> new file mode 100644
> index 000000000000..a6b734b215a9
> --- /dev/null
> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi_ddc.c
> @@ -0,0 +1,539 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Copyright (c) 2021 MediaTek Inc.
> + * Copyright (c) 2021 BayLibre, SAS
> + */
> +
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/time.h>
> +#include <linux/delay.h>
> +#include <linux/errno.h>
> +#include <linux/err.h>
> +#include <linux/mfd/syscon.h>
> +#include <linux/regmap.h>
> +#include <linux/platform_device.h>
> +#include <linux/slab.h>
> +#include <linux/io.h>
> +#include <linux/iopoll.h>
> +#include <linux/of_address.h>
> +#include <linux/of_irq.h>
> +#include <linux/of_platform.h>
> +#include <linux/semaphore.h>
> +#include <linux/clk.h>
> +#include <linux/i2c.h>
> +#include <linux/mutex.h>
> +
> +#include <drm/drm_edid.h>
> +
> +#include "mtk_mt8195_hdmi_regs.h"
> +#include "mtk_mt8195_hdmi.h"
> +
> +#define EDID_ID 0x50
> +#define DDC2_CLOK 572 /* BIM=208M/(v*4) = 90Khz */
> +#define DDC2_CLOK_EDID 832 /* BIM=208M/(v*4) = 62.5Khz */
> +
> +struct mtk_hdmi_ddc {
> + /* Serialize read/write operations */
> + struct mutex mtx;
> + struct i2c_adapter adap;
> + struct clk *clk;
> + void __iomem *regs;
> +};
> +
> +enum sif_bit_t_hdmi {
> + SIF_8_BIT_HDMI, /* /< [8 bits data address.] */
> + SIF_16_BIT_HDMI, /* /< [16 bits data address.] */
> +};
> +
> +static inline unsigned int mtk_ddc_read(struct mtk_hdmi_ddc *ddc,
> + unsigned short reg, u32 *val)

You don't need this function.

> +{
> + return regmap_read(ddc->regs, reg, val);
> +}
> +
> +static inline void mtk_ddc_write(struct mtk_hdmi_ddc *ddc, unsigned short reg,
> + unsigned int val)

Same here.

> +{
> + regmap_write(ddc->regs, reg, val);
> +}
> +
> +static inline void mtk_ddc_mask(struct mtk_hdmi_ddc *ddc, unsigned int reg,
> + unsigned int val, unsigned int mask)

And again.

> +{
> + regmap_update_bits(ddc->regs, reg, mask, val);
> +}
> +
> +static void hdmi_ddc_request(struct mtk_hdmi_ddc *ddc)
> +{
> + mtk_ddc_mask(ddc, HDCP2X_POL_CTRL, HDCP2X_DIS_POLL_EN,
> + HDCP2X_DIS_POLL_EN);
> +}
> +
> +static void DDC_WR_ONE(struct mtk_hdmi_ddc *ddc, unsigned int addr_id,

Lower case for function names, please.

> + unsigned int offset_id, unsigned char wr_data)
> +{
> + u32 val;
> +
> + mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS, &val);
> +
> + if (val & DDC_I2C_BUS_LOW) {
> + mtk_ddc_mask(ddc, DDC_CTRL, (CLOCK_SCL << DDC_CMD_SHIFT),
> + DDC_CMD);
> + usleep_range(250, 300);
> + }
> + mtk_ddc_mask(ddc, HPD_DDC_CTRL, DDC2_CLOK << DDC_DELAY_CNT_SHIFT,
> + DDC_DELAY_CNT);
> + mtk_ddc_write(ddc, SI2C_CTRL, SI2C_ADDR_READ << SI2C_ADDR_SHIFT);

Check include/linux/bitfield.h - I see lots of open coded FIELD_PREP(...) here
and in other functions of this file :-)

> + mtk_ddc_mask(ddc, SI2C_CTRL, wr_data << SI2C_WDATA_SHIFT, SI2C_WDATA);
> + mtk_ddc_mask(ddc, SI2C_CTRL, SI2C_WR, SI2C_WR);
> +
> + mtk_ddc_write(ddc, DDC_CTRL,
> + (SEQ_WRITE_REQ_ACK << DDC_CMD_SHIFT) +
> + (1 << DDC_DIN_CNT_SHIFT) +
> + (offset_id << DDC_OFFSET_SHIFT) + (addr_id << 1));
> +
> + usleep_range(1000, 1250);
> + mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS, &val);
> +
> + if ((val & DDC_I2C_NO_ACK) | DDC_I2C_BUS_LOW) {

I think here you were meaning

if (val & (DDC_I2C_NO_ACK | DDC_I2C_BUS_LOW)) {

> + mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS, &val);

Why are you reading the same register again? I don't think that this will
ever change in the order of a few nanoseconds...

> + if (val & DDC_I2C_BUS_LOW) {
> + mtk_ddc_mask(ddc, DDC_CTRL,
> + (CLOCK_SCL << DDC_CMD_SHIFT), DDC_CMD);
> + usleep_range(250, 300);
> + }
> + }
> +}
> +
> +static unsigned char
> +ddcm_read_hdmi(struct mtk_hdmi_ddc *ddc,
> + unsigned int u4_clk_div, unsigned char uc_dev, unsigned int u4_addr,
> + enum sif_bit_t_hdmi uc_addr_type, unsigned char *puc_value,
> + unsigned int u4_count)
> +{
> + unsigned int i, temp_length, loop_counter, temp_ksvlist, device_n;
> + unsigned int uc_read_count, uc_idx;
> + unsigned long ddc_start_time, ddc_end_time, ddc_timeout;
> + u32 val;
> +
> + if (!puc_value || !u4_count || !u4_clk_div)
> + return 0;
> +
> + uc_idx = 0;
> + mtk_ddc_read(ddc, HDCP2X_DDCM_STATUS, &val);
> + if (val & DDC_I2C_BUS_LOW) {
> + mtk_ddc_mask(ddc, DDC_CTRL, (CLOCK_SCL << DDC_CMD_SHIFT),
> + DDC_CMD);
> + usleep_range(250, 300);
> + }
> +
> + mtk_ddc_mask(ddc, DDC_CTRL, (CLEAR_FIFO << DDC_CMD_SHIFT), DDC_CMD);
> +
> + if (u4_addr == 0x43) {

I don't really understand what's that 0x43 magic address, please add a comment
in the code explaining that and a definition for it.

> + mtk_ddc_write(ddc, DDC_CTRL,
> + (SEQ_READ_NO_ACK << DDC_CMD_SHIFT) +
> + (u4_count << DDC_DIN_CNT_SHIFT) +
> + (u4_addr << DDC_OFFSET_SHIFT) +
> + (uc_dev << 1));

..snip..

> + usleep_range(5000, 5500);
> + ddc_start_time = jiffies;
> + ddc_timeout = temp_length + 5;
> + ddc_end_time = ddc_start_time + ddc_timeout * HZ / 1000;
> + while (1) {

This block can be expressed in one call.

ret = regmap_read_poll_timeout(regmap, HPD_DDC_STATUS, &val,
!(val & DDC_I2C_IN_PROG), 2000, ddc_timeout_us);

> + mtk_ddc_read(ddc, HPD_DDC_STATUS, &val);
> + if ((val & DDC_I2C_IN_PROG) == 0)
> + break;
> +
> + if (time_after(jiffies, ddc_end_time)) {
> + pr_info("[HDMI][DDC] error: time out\n");
> + return 0;
> + }
> + usleep_range(1000, 1500);
> + }

..snip..

> +
> +static unsigned char fg_ddc_data_read(struct mtk_hdmi_ddc *ddc,

static unsigned bool

> + unsigned char b_dev,
> + unsigned char b_data_addr,
> + unsigned char b_data_count,
> + unsigned char *pr_data)
> +{
> + bool flag;
> +

int ret;

mutex_lock()
ret = vddc_read(....)
mutex_unlock();

return !!ret;

> + mutex_lock(&ddc->mtx);
> +
> + hdmi_ddc_request(ddc);
> + if (vddc_read(ddc, DDC2_CLOK, (unsigned char)b_dev,
> + (unsigned int)b_data_addr, SIF_8_BIT_HDMI,
> + (unsigned char *)pr_data,
> + (unsigned int)b_data_count) == b_data_count) {
> + flag = true;
> + } else {
> + flag = false;
> + }
> +
> + mutex_unlock(&ddc->mtx);
> + return flag;
> +}
> +
> +static unsigned char fg_ddc_data_write(struct mtk_hdmi_ddc *ddc,

static void? or can hdmi_ddc_request/ddc_wr_one return a failure?

> + unsigned char b_dev,
> + unsigned char b_data_addr,
> + unsigned char b_data_count,
> + unsigned char *pr_data)
> +{
> + unsigned int i;
> +
> + mutex_lock(&ddc->mtx);
> +
> + hdmi_ddc_request(ddc);
> + for (i = 0; i < b_data_count; i++)
> + DDC_WR_ONE(ddc, b_dev, b_data_addr + i, *(pr_data + i));
> +
> + mutex_unlock(&ddc->mtx);
> + return 1;
> +}
> +

..snip..

> +
> +static int mtk_hdmi_ddc_probe(struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct mtk_hdmi_ddc *ddc;
> + int ret;
> +
> + ddc = devm_kzalloc(dev, sizeof(struct mtk_hdmi_ddc), GFP_KERNEL);
> + if (!ddc)
> + return -ENOMEM;
> +
> + ddc->regs = syscon_regmap_lookup_by_compatible("mediatek,mt8195-hdmi");
> + if (IS_ERR(ddc->regs))
> + return dev_err_probe(dev, PTR_ERR(ddc->regs), "Unable to get mt8195-hdmi syscon");
> +
> + ddc->clk = devm_clk_get(dev, "ddc-i2c");

I think that just "ddc" is also fine, as name.

Besides, you can shorten this out:

ddc->clk = devm_clk_get_enabled(dev, "ddc");

> + if (IS_ERR(ddc->clk)) {
> + dev_err(dev, "get ddc_clk failed: %p ,\n", ddc->clk);
> + return PTR_ERR(ddc->clk);
> + }
> + ret = clk_prepare_enable(ddc->clk);
> + if (ret) {
> + dev_err(dev, "enable ddc clk failed!\n");
> + return ret;
> + }
> +
> + mutex_init(&ddc->mtx);
> +
> + strscpy(ddc->adap.name, "mediatek-hdmi-ddc", sizeof(ddc->adap.name));
> + ddc->adap.owner = THIS_MODULE;
> + ddc->adap.class = I2C_CLASS_DDC;
> + ddc->adap.algo = &mtk_hdmi_ddc_algorithm;
> + ddc->adap.retries = 3;
> + ddc->adap.dev.of_node = dev->of_node;
> + ddc->adap.algo_data = ddc;
> + ddc->adap.dev.parent = &pdev->dev;
> +
> + ret = i2c_add_adapter(&ddc->adap);

ret = devm_i2c_add_adapter(&ddc->adap);

> + if (ret < 0) {
> + dev_err(dev, "failed to add bus to i2c core\n");
> + goto err_clk_disable;
> + }
> +
> + platform_set_drvdata(pdev, ddc);
> + return 0;
> +
> +err_clk_disable:
> + clk_disable_unprepare(ddc->clk);
> + return ret;
> +}
> +

Regards,
Angelo

2022-09-20 11:20:16

[permalink] [raw]

Subject: Re: [PATCH v1 12/17] drm/mediatek: hdmi: mt8195: add audio support

Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
> Add HDMI audio support for mt8195
>
> Signed-off-by: Guillaume Ranquet <[email protected]>
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> index 39e07a6dd490..bb7593ea4c86 100644
> --- a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> @@ -215,6 +215,26 @@ static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black)
> mtk_hdmi_mask(hdmi, TOP_VMUTE_CFG1, 0, REG_VMUTE_EN);
> }
>
> +static void mtk_hdmi_hw_aud_mute(struct mtk_hdmi *hdmi)
> +{
> + u32 val;
> +
> + val = mtk_hdmi_read(hdmi, AIP_CTRL, &val);
> +

val_tx = AUD_MUTE_FIFO_EN;
if (val & DSD_EN)
val_tx |= DSD_MUTE_DATA;

regmap_set_bits(regmap, AIP_TXCTRL, val_tx);

Easier, shorter.

> + if (val & DSD_EN)
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL,
> + DSD_MUTE_DATA | AUD_MUTE_FIFO_EN,
> + DSD_MUTE_DATA | AUD_MUTE_FIFO_EN);
> + else
> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, AUD_MUTE_FIFO_EN,
> + AUD_MUTE_FIFO_EN);
> +}

Regards,
Angelo

2022-09-20 11:46:23

[permalink] [raw]

Subject: Re: [PATCH v1 13/17] phy: phy-mtk-hdmi: Add generic phy configure callback

Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
> Some phys, such as mt8195, needs to have a configure callback defined.
>
> Signed-off-by: Guillaume Ranquet <[email protected]>

Reviewed-by: AngeloGioacchino Del Regno <[email protected]>

2022-09-20 12:36:04

[permalink] [raw]

Subject: Re: [PATCH v1 14/17] phy: mediatek: add support for phy-mtk-hdmi-mt8195

Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
> Add basic support for the mediatek hdmi phy on MT8195 SoC
>
> Signed-off-by: Guillaume Ranquet <[email protected]>
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> index bb7593ea4c86..0157acdce56c 100644
> --- a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> @@ -1344,6 +1344,8 @@ static void mtk_hdmi_bridge_disable(struct drm_bridge *bridge,
> mtk_hdmi_disable_hdcp_encrypt(hdmi);
> usleep_range(50000, 50050);
>
> + phy_power_off(hdmi->phy);

This one belongs to patch [11/17]

> +
> hdmi->enabled = false;
> }
>
> diff --git a/drivers/phy/mediatek/Makefile b/drivers/phy/mediatek/Makefile
> index fb1f8edaffa7..c9a50395533e 100644
> --- a/drivers/phy/mediatek/Makefile
> +++ b/drivers/phy/mediatek/Makefile
> @@ -12,6 +12,7 @@ obj-$(CONFIG_PHY_MTK_XSPHY) += phy-mtk-xsphy.o
> phy-mtk-hdmi-drv-y := phy-mtk-hdmi.o
> phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt2701.o
> phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8173.o
> +phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8195.o
> obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o
>
> phy-mtk-mipi-dsi-drv-y := phy-mtk-mipi-dsi.o
> diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
> new file mode 100644
> index 000000000000..149015b64c02
> --- /dev/null
> +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
> @@ -0,0 +1,673 @@

..snip..

> +
> +static int mtk_hdmi_pll_set_hw(struct clk_hw *hw, unsigned char prediv,
> + unsigned char fbkdiv_high,
> + unsigned long fbkdiv_low,
> + unsigned char fbkdiv_hs3, unsigned char posdiv1,
> + unsigned char posdiv2, unsigned char txprediv,
> + unsigned char txposdiv,
> + unsigned char digital_div)
> +{
> + unsigned char txposdiv_value = 0;
> + unsigned char div3_ctrl_value = 0;
> + unsigned char posdiv_vallue = 0;
> + unsigned char div_ctrl_value = 0;
> + unsigned char reserve_3_2_value = 0;
> + unsigned char prediv_value = 0;
> + unsigned char reserve13_value = 0;
> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
> +
> + mtk_hdmi_pll_select_source(hw);
> +
> + mtk_hdmi_pll_performance_setting(hw);
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
> + 0x2 << RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT,
> + RG_HDMITX21_BIAS_PE_BG_VREF_SEL);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
> + 0x0 << RG_HDMITX21_VREF_SEL_SHIFT,
> + RG_HDMITX21_VREF_SEL);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_9,
> + 0x2 << RG_HDMITX21_SLDO_VREF_SEL_SHIFT,
> + RG_HDMITX21_SLDO_VREF_SEL);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
> + 0x0 << RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT,
> + RG_HDMITX21_BIAS_PE_VREF_SELB);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
> + 0x1 << RG_HDMITX21_SLDOLPF_EN_SHIFT,
> + RG_HDMITX21_SLDOLPF_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x11 << RG_HDMITX21_INTR_CAL_SHIFT,
> + RG_HDMITX21_INTR_CAL);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
> + 0x1 << RG_HDMITXPLL_PWD_SHIFT, RG_HDMITXPLL_PWD);
> +
> + /* TXPOSDIV */

Either ilog2() or use a switch...

> + if (txposdiv == 1)
> + txposdiv_value = 0x0;
> + else if (txposdiv == 2)
> + txposdiv_value = 0x1;
> + else if (txposdiv == 4)
> + txposdiv_value = 0x2;
> + else if (txposdiv == 8)
> + txposdiv_value = 0x3;
> + else
> + return -EINVAL;
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + txposdiv_value << RG_HDMITX21_TX_POSDIV_SHIFT,
> + RG_HDMITX21_TX_POSDIV);
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT,
> + RG_HDMITX21_TX_POSDIV_EN);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
> + 0x0 << RG_HDMITX21_FRL_EN_SHIFT, RG_HDMITX21_FRL_EN);
> +
> + /* TXPREDIV */

Use a switch.

> + if (txprediv == 2) {
> + div3_ctrl_value = 0x0;
> + posdiv_vallue = 0x0;
> + } else if (txprediv == 4) {
> + div3_ctrl_value = 0x0;
> + posdiv_vallue = 0x1;
> + } else if (txprediv == 6) {
> + div3_ctrl_value = 0x1;
> + posdiv_vallue = 0x0;
> + } else if (txprediv == 12) {
> + div3_ctrl_value = 0x1;
> + posdiv_vallue = 0x1;
> + } else {
> + return -EINVAL;
> + }
> +
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
> + div3_ctrl_value
> + << RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT,
> + RG_HDMITXPLL_POSDIV_DIV3_CTRL);
> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
> + posdiv_vallue << RG_HDMITXPLL_POSDIV_SHIFT,
> + RG_HDMITXPLL_POSDIV);
> +
> + /* POSDIV1 */

same here.

> + if (posdiv1 == 5)
> + div_ctrl_value = 0x0;
> + else if (posdiv1 == 10)
> + div_ctrl_value = 0x1;
> + else if (posdiv1 == (125 / 10))

/* This is 12.5 in reality, but we get only the integer part */
case 12:

...or you'll have to use a "deci-divider", which would complicate human readability
by ... quite a bit, in some cases.

> + div_ctrl_value = 0x2;
> + else if (posdiv1 == 15)
> + div_ctrl_value = 0x3;
> + else
> + return -EINVAL;
> +

..snip..

> +
> +#define PCW_DECIMAL_WIDTH 24
> +
> +static int mtk_hdmi_pll_calculate_params(struct clk_hw *hw, unsigned long rate,
> + unsigned long parent_rate)
> +{
> + int ret;
> + unsigned long long tmds_clk = 0;
> + unsigned long long pixel_clk = 0;
> + //pll input source frequency

Fix comments style.

> + unsigned long long da_hdmitx21_ref_ck = 0;
> + unsigned long long ns_hdmipll_ck = 0; //ICO output clk
> + //source clk for Display digital
> + unsigned long long ad_hdmipll_pixel_ck = 0;
> + unsigned char digital_div = 0;
> + unsigned long long pcw = 0; //FBDIV

u64 pcw;

> + unsigned char txprediv = 0;
> + unsigned char txposdiv = 0;
> + unsigned char fbkdiv_high = 0;
> + unsigned long fbkdiv_low = 0;
> + unsigned char posdiv1 = 0;
> + unsigned char posdiv2 = 0;
> + unsigned char prediv = 1; //prediv is always 1
> + unsigned char fbkdiv_hs3 = 1; //fbkdiv_hs3 is always 1
> + int i = 0;
> + unsigned char txpredivs[4] = { 2, 4, 6, 12 };
> +
> + pixel_clk = rate;
> + tmds_clk = pixel_clk;
> +
> + if (tmds_clk < 25000000 || tmds_clk > 594000000)
> + return -EINVAL;
> +
> + da_hdmitx21_ref_ck = 26000000UL; //in HZ
> +
> + /* TXPOSDIV stage treatment:
> + * 0M < TMDS clk < 54M /8
> + * 54M <= TMDS clk < 148.35M /4
> + * 148.35M <=TMDS clk < 296.7M /2
> + * 296.7 <=TMDS clk <= 594M /1
> + */
> + if (tmds_clk < 54000000UL)
> + txposdiv = 8;
> + else if (tmds_clk >= 54000000UL && tmds_clk < 148350000UL)

else if (tmds_clk < 148350000UL)

> + txposdiv = 4;
> + else if (tmds_clk >= 148350000UL && tmds_clk < 296700000UL)

else if (tmds_clk < 296700000UL)

> + txposdiv = 2;
> + else if (tmds_clk >= 296700000UL && tmds_clk <= 594000000UL)

else if (tmds_clk <= 594000000UL)

> + txposdiv = 1;
> + else
> + return -EINVAL;
> +

..snip..

> +
> + txprediv = txpredivs[i];
> +
> + /* PCW calculation: FBKDIV
> + * formula: pcw=(frequency_out*2^pcw_bit) / frequency_in / FBKDIV_HS3;
> + * RG_HDMITXPLL_FBKDIV[32:0]:
> + * [32,24] 9bit integer, [23,0]:24bit fraction
> + */
> + pcw = ns_hdmipll_ck;

pcw = ns_hdmipll_ck << PCW_DECIMAL_WIDTH;
pcw /= da_hdmitx21_ref_ck;
pcw /= fbkdiv_hs3;

> + pcw = pcw << PCW_DECIMAL_WIDTH;
> + pcw = pcw / da_hdmitx21_ref_ck;
> + pcw = pcw / fbkdiv_hs3;
> +
> + if ((pcw / BIT(32)) > 1) {

pcw_nbits = fls64(pcw);

if (pcw_nbits > 33)
return -EINVAL;

if (pcw_nbits == 33) {
fbkdiv_high = 1;
fkbdiv_low = pcw % BIT(32);
} else {
fbkdiv_high = 0;
fbkdiv_low = pcw;
}

> + return -EINVAL;
> + } else if ((pcw / BIT(32)) == 1) {
> + fbkdiv_high = 1;
> + fbkdiv_low = pcw % BIT(32);
> + } else {
> + fbkdiv_high = 0;
> + fbkdiv_low = pcw;
> + }
> +
> + /* posdiv1:
> + * posdiv1 stage treatment according to color_depth:
> + * 24bit -> posdiv1 /10, 30bit -> posdiv1 /12.5,
> + * 36bit -> posdiv1 /15, 48bit -> posdiv1 /10
> + */
> + posdiv1 = 10; // div 10
> + posdiv2 = 1;
> + ad_hdmipll_pixel_ck = (ns_hdmipll_ck / 10) / 1;

I understand this as
ad_hdmipll_pixel_ck = (ns_hdmipll_ck / posdiv1) / posdiv2;

..if that's true, please fix.

> +
> + /* Digital clk divider, max /32 */
> + digital_div = ad_hdmipll_pixel_ck / pixel_clk;
> + if (!(digital_div <= 32 && digital_div >= 1))
> + return -EINVAL;
> +
> + ret = mtk_hdmi_pll_set_hw(hw, prediv, fbkdiv_high, fbkdiv_low,
> + fbkdiv_hs3, posdiv1, posdiv2, txprediv,
> + txposdiv, digital_div);
> + if (ret)
> + return -EINVAL;
> +
> + return 0;
> +}
> +
> +static int mtk_hdmi_pll_drv_setting(struct clk_hw *hw)
> +{
> + unsigned char data_channel_bias, clk_channel_bias;
> + unsigned char impedance, impedance_en;
> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
> + unsigned long tmds_clk;
> + unsigned long pixel_clk = hdmi_phy->pll_rate;
> +
> + tmds_clk = pixel_clk;

tmds_rate = pixel_rate;

...better describes that we're talking about clock rates, not clock per-se.

> +
> + /* bias & impedance setting:
> + * 3G < data rate <= 6G: enable impedance 100ohm,
> + * data channel bias 24mA, clock channel bias 20mA
> + * pixel clk >= HD, 74.175MHZ <= pixel clk <= 300MHZ:
> + * enalbe impedance 100ohm
> + * data channel 20mA, clock channel 16mA
> + * 27M =< pixel clk < 74.175: disable impedance
> + * data channel & clock channel bias 10mA
> + */
> +
> + /* 3G < data rate <= 6G, 300M < tmds rate <= 594M */
> + if (tmds_clk > 300000000UL && tmds_clk <= 594000000UL) {
> + data_channel_bias = 0x3c; //24mA

There must be an equation to calculate the bias value from milliamps to HW values,
in which case we would see here...

data_channel_bias = MTK_HDMI_BIAS_MA(24);
clk_channel_bias = MTK_HDMI_BIAS_MA(20);
impedance = MTK_HDMI_IMPEDANCE_OHMS(100);
impedance_en = SOMETHING();

> + clk_channel_bias = 0x34; //20mA
> + impedance_en = 0xf;
> + impedance = 0x36; //100ohm
> + } else if (pixel_clk >= 74175000UL && pixel_clk <= 300000000UL) {
> + data_channel_bias = 0x34; //20mA
> + clk_channel_bias = 0x2c; //16mA
> + impedance_en = 0xf;
> + impedance = 0x36; //100ohm
> + } else if (pixel_clk >= 27000000UL && pixel_clk < 74175000UL) {

By the way, if you invert all the checks here (check from highest pixclk to lowest)
you can simplify it.

> + data_channel_bias = 0x14; //10mA
> + clk_channel_bias = 0x14; //10mA
> + impedance_en = 0x0;
> + impedance = 0x0;
> + } else {
> + return -EINVAL;
> + }
> +

..snip..

> +
> +static int mtk_hdmi_phy_configure(struct phy *phy, union phy_configure_opts *opts)
> +{
> + struct phy_configure_opts_dp *dp_opts = &opts->dp;
> + struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);
> + int ret = 0;
> + bool enable = 0;
> +
> + ret = clk_set_rate(hdmi_phy->pll, dp_opts->link_rate);
> +

Please remove this blank line...

> + if (ret)
> + goto out;
> +
> + mtk_mt8195_phy_tmds_high_bit_clk_ratio(hdmi_phy, enable);
> +
> +out:
> + return ret;
> +}
> +
> +struct mtk_hdmi_phy_conf mtk_hdmi_phy_8195_conf = {
> + .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE,
> + .hdmi_phy_clk_ops = &mtk_hdmi_pll_ops,
> + .hdmi_phy_enable_tmds = mtk_hdmi_phy_enable_tmds,
> + .hdmi_phy_disable_tmds = mtk_hdmi_phy_disable_tmds,
> + .hdmi_phy_configure = mtk_hdmi_phy_configure,
> +};
> +
> +MODULE_AUTHOR("Can Zeng <[email protected]>");
> +MODULE_DESCRIPTION("MediaTek MT8195 HDMI PHY Driver");
> +MODULE_LICENSE("GPL v2");

Regards,
Angelo

2022-09-20 13:01:42

[permalink] [raw]

Subject: Re: [PATCH v1 16/17] drm/mediatek: dpi: Add mt8195 hdmi to DPI driver

Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
> Add the DPI1 hdmi path support in mtk dpi driver
>
> Signed-off-by: Guillaume Ranquet <[email protected]>
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index 630a4e301ef6..91212b7610e8 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -15,7 +15,10 @@
> #include <linux/of_graph.h>
> #include <linux/pinctrl/consumer.h>
> #include <linux/platform_device.h>
> +#include <linux/reset.h>
> #include <linux/types.h>
> +#include <linux/regmap.h>
> +#include <linux/mfd/syscon.h>
>
> #include <video/videomode.h>
>
> @@ -66,10 +69,14 @@ struct mtk_dpi {
> struct drm_bridge *next_bridge;
> struct drm_connector *connector;
> void __iomem *regs;
> + struct reset_control *reset_ctl;
> struct device *dev;
> struct clk *engine_clk;
> + struct clk *dpi_ck_cg;
> struct clk *pixel_clk;
> + struct clk *dpi_sel_clk;
> struct clk *tvd_clk;
> + struct clk *hdmi_cg;

You're adding new clocks and then you're making *all clocks*, including the
already existing ones... optional.

That looks seriously odd.... can you please give a devicetree example for
MT8195 in the next version, perhaps in the cover letter?

Would also make it easier to test this entire big series.

Regards,
Angelo

2022-09-21 03:06:07

by Rex-BC Chen (陳柏辰)

[permalink] [raw]

Subject: Re: [PATCH v1 01/17] dt-bindings: clk: mediatek: Add MT8195 DPI clocks

On Mon, 2022-09-19 at 18:55 +0200, Guillaume Ranquet wrote:
> From: Pablo Sun <[email protected]>
>
> Expand dt-bindings slot for VDOSYS1 of MT8195.
> This clock is required by the DPI1 hardware
> and is a downstream of the HDMI pixel clock.
>
> Signed-off-by: Pablo Sun <[email protected]>
> Signed-off-by: Guillaume Ranquet <[email protected]>
> Reviewed-by: Mattijs Korpershoek <[email protected]>
>
> diff --git a/include/dt-bindings/clock/mt8195-clk.h b/include/dt-
> bindings/clock/mt8195-clk.h
> index 95cf812a0b37..d70d017ad69c 100644
> --- a/include/dt-bindings/clock/mt8195-clk.h
> +++ b/include/dt-bindings/clock/mt8195-clk.h
> @@ -859,6 +859,8 @@
> #define CLK_VDO1_DPINTF 47
> #define CLK_VDO1_DISP_MONITOR_DPINTF 48
> #define CLK_VDO1_26M_SLOW 49
> -#define CLK_VDO1_NR_CLK 50
> +#define CLK_VDO1_DPI1_HDMI 50
> +#define CLK_VDO1_NR_CLK 51
> +
>
> #endif /* _DT_BINDINGS_CLK_MT8195_H */

Hello Guillaume,

I am not sure the reason, but it seems patches in this series lack of
something like this for whole series:

---
Documentation/devicetree/bindings/watchdog/mtk-wdt.txt | 1 +
1 file changed, 1 insertion(+)

BRs,
Bo-Chen

2022-09-22 07:13:47

[permalink] [raw]

Subject: Re: [PATCH v1 01/17] dt-bindings: clk: mediatek: Add MT8195 DPI clocks

On 19/09/2022 18:55, Guillaume Ranquet wrote:
> From: Pablo Sun <[email protected]>
>
> Expand dt-bindings slot for VDOSYS1 of MT8195.
> This clock is required by the DPI1 hardware
> and is a downstream of the HDMI pixel clock.
>
> Signed-off-by: Pablo Sun <[email protected]>
> Signed-off-by: Guillaume Ranquet <[email protected]>
> Reviewed-by: Mattijs Korpershoek <[email protected]>
>

Looks like broken patch.

Best regards,
Krzysztof

2022-09-22 07:31:15

[permalink] [raw]

Subject: Re: [PATCH v1 15/17] dt-bindings: display: mediatek: dpi: Add compatible for MediaTek MT8195

On 19/09/2022 18:56, Guillaume Ranquet wrote:
> Add dt-binding documentation of dpi for MediaTek MT8195 SoC.
>
> Signed-off-by: Guillaume Ranquet <[email protected]>
>
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
> index 5bb23e97cf33..2c7ecef54986 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
> @@ -24,6 +24,7 @@ properties:
> - mediatek,mt8183-dpi
> - mediatek,mt8186-dpi
> - mediatek,mt8192-dpi
> + - mediatek,mt8195-dpi
> - mediatek,mt8195-dp-intf

Aren't these the same?

Best regards,
Krzysztof

2022-09-22 07:31:56

[permalink] [raw]

Subject: Re: [PATCH v1 03/17] dt-bindings: phy: mediatek: hdmi-phy: Add mt8195 compatible

On 19/09/2022 18:56, Guillaume Ranquet wrote:
> Add a compatible for the HDMI PHY on MT8195
>
> Signed-off-by: Guillaume Ranquet <[email protected]>

The same... maybe it works, maybe not, I don't know. Any reason not
using standard tools and producing standard patches?

Best regards,
Krzysztof

2022-09-22 07:46:42

[permalink] [raw]

Subject: Re: [PATCH v1 06/17] dt-bindings: mediatek: set the hdmi to be compatible with syscon

On 19/09/2022 18:56, Guillaume Ranquet wrote:
> In order to share register with a dedicated ddc driver, set the hdmi
> compatible to syscon.
>
> Signed-off-by: Guillaume Ranquet <[email protected]>
>
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
> index abb231a0694b..86297b7eb7f7 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
> @@ -16,12 +16,14 @@ description: |
>
> properties:
> compatible:
> - enum:
> - - mediatek,mt2701-hdmi
> - - mediatek,mt7623-hdmi
> - - mediatek,mt8167-hdmi
> - - mediatek,mt8173-hdmi
> - - mediatek,mt8195-hdmi
> + items:
> + - enum:
> + - mediatek,mt2701-hdmi
> + - mediatek,mt7623-hdmi
> + - mediatek,mt8167-hdmi
> + - mediatek,mt8173-hdmi
> + - const: syscon

So you just broke all DTS and I do not see patches fixing them...

Best regards,
Krzysztof

2022-09-22 07:48:27

[permalink] [raw]

Subject: Re: [PATCH v1 11/17] drm/mediatek: hdmi: add mt8195 support

On 19/09/2022 18:56, Guillaume Ranquet wrote:
> Adds hdmi and hdmi-ddc support for mt8195.
>
> Signed-off-by: Guillaume Ranquet <[email protected]>

> +static int mtk_hdmi_ddc_probe(struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct mtk_hdmi_ddc *ddc;
> + int ret;
> +
> + ddc = devm_kzalloc(dev, sizeof(struct mtk_hdmi_ddc), GFP_KERNEL);
> + if (!ddc)
> + return -ENOMEM;
> +
> + ddc->regs = syscon_regmap_lookup_by_compatible("mediatek,mt8195-hdmi");

That's not how you get regmaps. If you the driver grows, are you going
to grow the list to e.g. 10 syscon_regmap_lookup_by_compatible() calls?
This has to be by phandle.

Best regards,
Krzysztof

2022-09-22 07:48:27

[permalink] [raw]

Subject: Re: [PATCH v1 17/17] drm/mediatek: Add mt8195-dpi support to drm_drv

On 19/09/2022 18:56, Guillaume Ranquet wrote:
> Add dpi support to enable the HDMI path.
>
> Signed-off-by: Guillaume Ranquet <[email protected]>
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> index 72049a530ae1..27f029ca760b 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
> @@ -820,6 +820,8 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
> .data = (void *)MTK_DPI },
> { .compatible = "mediatek,mt8192-dpi",
> .data = (void *)MTK_DPI },
> + { .compatible = "mediatek,mt8195-dpi",
> + .data = (void *)MTK_DPI },

It's compatible with the others. You don't need more compatibles.

Best regards,
Krzysztof

2022-09-22 08:05:52

[permalink] [raw]

Subject: Re: [PATCH v1 16/17] drm/mediatek: dpi: Add mt8195 hdmi to DPI driver

On 19/09/2022 18:56, Guillaume Ranquet wrote:
> Add the DPI1 hdmi path support in mtk dpi driver
>
> Signed-off-by: Guillaume Ranquet <[email protected]>
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
> index 630a4e301ef6..91212b7610e8 100644
> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
> @@ -15,7 +15,10 @@
> #include <linux/of_graph.h>
> #include <linux/pinctrl/consumer.h>
> #include <linux/platform_device.h>
> +#include <linux/reset.h>
> #include <linux/types.h>
> +#include <linux/regmap.h>
> +#include <linux/mfd/syscon.h>

Why do you need these headers in this patch?

Best regards,
Krzysztof

2022-09-22 12:53:30

[permalink] [raw]

Subject: Re: [PATCH v1 01/17] dt-bindings: clk: mediatek: Add MT8195 DPI clocks

On 19/09/2022 18:55, Guillaume Ranquet wrote:
> From: Pablo Sun <[email protected]>
>
> Expand dt-bindings slot for VDOSYS1 of MT8195.
> This clock is required by the DPI1 hardware
> and is a downstream of the HDMI pixel clock.
>
> Signed-off-by: Pablo Sun <[email protected]>
> Signed-off-by: Guillaume Ranquet <[email protected]>
> Reviewed-by: Mattijs Korpershoek <[email protected]>

Acked-by: Krzysztof Kozlowski <[email protected]>

Best regards,
Krzysztof

2022-09-22 13:07:06

[permalink] [raw]

Subject: Re: [PATCH v1 01/17] dt-bindings: clk: mediatek: Add MT8195 DPI clocks

On Thu, 22 Sep 2022 09:11, Krzysztof Kozlowski
<[email protected]> wrote:
>On 19/09/2022 18:55, Guillaume Ranquet wrote:
>> From: Pablo Sun <[email protected]>
>>
>> Expand dt-bindings slot for VDOSYS1 of MT8195.
>> This clock is required by the DPI1 hardware
>> and is a downstream of the HDMI pixel clock.
>>
>> Signed-off-by: Pablo Sun <[email protected]>
>> Signed-off-by: Guillaume Ranquet <[email protected]>
>> Reviewed-by: Mattijs Korpershoek <[email protected]>
>>
>
>Looks like broken patch.
>
>Best regards,
>Krzysztof
>

Hi Bo-Chen and Krzysztof,
I've sent the patches using the rather new b4 prep/send commands.

Though it produces valid patches, it's using `git show --format=email`
to produce the patches, which lacks a diffstat.

My understanding is that the diffstat is considered to be comments and thus
are not necessary to produce a valid patch.

I've reported the issue on the tools mailing list [1], I'm looking at providing
a fix.

I'll be extra careful at the patch format for V2.

Sorry for the inconveniance,
Guillaume.

[1] https://lore.kernel.org/tools/CABnWg9uBOGqJMq=yCtn7SoEME=+2u1-ZK9ftb6=_jRhkhL_jiw@mail.gmail.com/T/#u

2022-09-22 13:09:55

[permalink] [raw]

Subject: Re: [PATCH v1 03/17] dt-bindings: phy: mediatek: hdmi-phy: Add mt8195 compatible

On 19/09/2022 18:56, Guillaume Ranquet wrote:
> Add a compatible for the HDMI PHY on MT8195
>
> Signed-off-by: Guillaume Ranquet <[email protected]>
>

Acked-by: Krzysztof Kozlowski <[email protected]>

Best regards,
Krzysztof

2022-09-22 13:35:42

[permalink] [raw]

Subject: Re: [PATCH v1 01/17] dt-bindings: clk: mediatek: Add MT8195 DPI clocks

On 22/09/2022 14:45, Guillaume Ranquet wrote:
> On Thu, 22 Sep 2022 09:11, Krzysztof Kozlowski
> <[email protected]> wrote:
>> On 19/09/2022 18:55, Guillaume Ranquet wrote:
>>> From: Pablo Sun <[email protected]>
>>>
>>> Expand dt-bindings slot for VDOSYS1 of MT8195.
>>> This clock is required by the DPI1 hardware
>>> and is a downstream of the HDMI pixel clock.
>>>
>>> Signed-off-by: Pablo Sun <[email protected]>
>>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>> Reviewed-by: Mattijs Korpershoek <[email protected]>
>>>
>>
>> Looks like broken patch.
>>
>> Best regards,
>> Krzysztof
>>
>
> Hi Bo-Chen and Krzysztof,
> I've sent the patches using the rather new b4 prep/send commands.
>
> Though it produces valid patches, it's using `git show --format=email`
> to produce the patches, which lacks a diffstat.
>
> My understanding is that the diffstat is considered to be comments and thus
> are not necessary to produce a valid patch.
>
> I've reported the issue on the tools mailing list [1], I'm looking at providing
> a fix.
>
> I'll be extra careful at the patch format for V2.

Thanks for explanation! Probably your patches are perfectly fine and
should apply, although I must admit diffstat is often useful.

Best regards,
Krzysztof

2022-09-22 19:33:10

by Konstantin Ryabitsev

[permalink] [raw]

Subject: Re: [PATCH v1 01/17] dt-bindings: clk: mediatek: Add MT8195 DPI clocks

On Thu, Sep 22, 2022 at 02:51:00PM +0200, Krzysztof Kozlowski wrote:
> Thanks for explanation! Probably your patches are perfectly fine and
> should apply, although I must admit diffstat is often useful.

Krzysztof:

The patches should indeed apply without problems and there's a fix for the
missing diffstat already in place.

Best regards,
Konstantin

2022-09-26 05:25:56

by Chen-Yu Tsai

[permalink] [raw]

Subject: Re: [PATCH v1 02/17] clk: mediatek: add VDOSYS1 clock

On Tue, Sep 20, 2022 at 12:59 AM Guillaume Ranquet
<[email protected]> wrote:
>
> From: Pablo Sun <[email protected]>
>
> Add the clock gate definition for the DPI1 hardware
> in VDOSYS1.
>
> The parent clock "hdmi_txpll" is already defined in
> `mt8195.dtsi`.
>
> Signed-off-by: Pablo Sun <[email protected]>
> Signed-off-by: Guillaume Ranquet <[email protected]>

Reviewed-by: Chen-Yu Tsai <[email protected]>

2022-09-26 05:39:04

by Chen-Yu Tsai

[permalink] [raw]

Subject: Re: [PATCH v1 15/17] dt-bindings: display: mediatek: dpi: Add compatible for MediaTek MT8195

On Thu, Sep 22, 2022 at 3:20 PM Krzysztof Kozlowski
<[email protected]> wrote:
>
> On 19/09/2022 18:56, Guillaume Ranquet wrote:
> > Add dt-binding documentation of dpi for MediaTek MT8195 SoC.
> >
> > Signed-off-by: Guillaume Ranquet <[email protected]>
> >
> > diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
> > index 5bb23e97cf33..2c7ecef54986 100644
> > --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
> > +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
> > @@ -24,6 +24,7 @@ properties:
> > - mediatek,mt8183-dpi
> > - mediatek,mt8186-dpi
> > - mediatek,mt8192-dpi
> > + - mediatek,mt8195-dpi
> > - mediatek,mt8195-dp-intf
>
> Aren't these the same?

*-dpi are MIPI DPI (as in parallel data with DDR modes) encoders.
*-dp-intf are Display Port encoder.

Totally distinguishable. :)

The hardware blocks seem similar upon cursory comparison of the register
tables, with the base layout being the same, and sharing registers for
basic settings such as the display timings.

The DPI ones have some extra registers, presumably to control the signals
or output width. The DP one has some registers of its own that only make
sense for Display Port.

ChenYu

2022-09-26 05:41:35

by Chen-Yu Tsai

[permalink] [raw]

Subject: Re: [PATCH v1 02/17] clk: mediatek: add VDOSYS1 clock

On Mon, Sep 26, 2022 at 1:09 PM Chen-Yu Tsai <[email protected]> wrote:
>
> On Tue, Sep 20, 2022 at 12:59 AM Guillaume Ranquet
> <[email protected]> wrote:
> >
> > From: Pablo Sun <[email protected]>
> >
> > Add the clock gate definition for the DPI1 hardware
> > in VDOSYS1.
> >
> > The parent clock "hdmi_txpll" is already defined in
> > `mt8195.dtsi`.
> >
> > Signed-off-by: Pablo Sun <[email protected]>
> > Signed-off-by: Guillaume Ranquet <[email protected]>
>
> Reviewed-by: Chen-Yu Tsai <[email protected]>

I've queued patches 1 & 2 up here [1] and will send a pull request to
the clock maintainer later this week.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/wens/linux.git/log/?h=clk-mtk-for-6.1

2022-09-26 07:12:25

[permalink] [raw]

Subject: Re: [PATCH v1 15/17] dt-bindings: display: mediatek: dpi: Add compatible for MediaTek MT8195

On 26/09/2022 07:24, Chen-Yu Tsai wrote:
> On Thu, Sep 22, 2022 at 3:20 PM Krzysztof Kozlowski
> <[email protected]> wrote:
>>
>> On 19/09/2022 18:56, Guillaume Ranquet wrote:
>>> Add dt-binding documentation of dpi for MediaTek MT8195 SoC.
>>>
>>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>>
>>> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
>>> index 5bb23e97cf33..2c7ecef54986 100644
>>> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
>>> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,dpi.yaml
>>> @@ -24,6 +24,7 @@ properties:
>>> - mediatek,mt8183-dpi
>>> - mediatek,mt8186-dpi
>>> - mediatek,mt8192-dpi
>>> + - mediatek,mt8195-dpi
>>> - mediatek,mt8195-dp-intf
>>
>> Aren't these the same?
>
> *-dpi are MIPI DPI (as in parallel data with DDR modes) encoders.
> *-dp-intf are Display Port encoder.
>
> Totally distinguishable. :)
>
> The hardware blocks seem similar upon cursory comparison of the register
> tables, with the base layout being the same, and sharing registers for
> basic settings such as the display timings.
>
> The DPI ones have some extra registers, presumably to control the signals
> or output width. The DP one has some registers of its own that only make
> sense for Display Port.

OK.

Acked-by: Krzysztof Kozlowski <[email protected]>

Best regards,
Krzysztof

2022-09-27 13:08:12

[permalink] [raw]

Subject: Re: [PATCH v1 17/17] drm/mediatek: Add mt8195-dpi support to drm_drv

On Thu, 22 Sep 2022 09:20, Krzysztof Kozlowski
<[email protected]> wrote:
>On 19/09/2022 18:56, Guillaume Ranquet wrote:
>> Add dpi support to enable the HDMI path.
>>
>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>
>> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>> index 72049a530ae1..27f029ca760b 100644
>> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>> @@ -820,6 +820,8 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
>> .data = (void *)MTK_DPI },
>> { .compatible = "mediatek,mt8192-dpi",
>> .data = (void *)MTK_DPI },
>> + { .compatible = "mediatek,mt8195-dpi",
>> + .data = (void *)MTK_DPI },
>
>It's compatible with the others. You don't need more compatibles.

Hi Krzysztof,

It's a bit confusing, because this compatible is used in both
mtk_drm_drv.c and in mtk_dpi.c

Albeit it's entirely the same thing regarding the mtk_drm_drv module,
it's pretty different
regarding the mtk_dpi module.

Thx,
Guillaume.
>
>Best regards,
>Krzysztof
>

2022-09-27 13:39:40

[permalink] [raw]

Subject: Re: [PATCH v1 14/17] phy: mediatek: add support for phy-mtk-hdmi-mt8195

On Tue, 20 Sep 2022 14:17, AngeloGioacchino Del Regno
<[email protected]> wrote:
>Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
>> Add basic support for the mediatek hdmi phy on MT8195 SoC
>>
>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>
>> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> index bb7593ea4c86..0157acdce56c 100644
>> --- a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> @@ -1344,6 +1344,8 @@ static void mtk_hdmi_bridge_disable(struct drm_bridge *bridge,
>> mtk_hdmi_disable_hdcp_encrypt(hdmi);
>> usleep_range(50000, 50050);
>>
>> + phy_power_off(hdmi->phy);
>
>This one belongs to patch [11/17]
>

Sorry, bad rebase :-/

>> +
>> hdmi->enabled = false;
>> }
>>
>> diff --git a/drivers/phy/mediatek/Makefile b/drivers/phy/mediatek/Makefile
>> index fb1f8edaffa7..c9a50395533e 100644
>> --- a/drivers/phy/mediatek/Makefile
>> +++ b/drivers/phy/mediatek/Makefile
>> @@ -12,6 +12,7 @@ obj-$(CONFIG_PHY_MTK_XSPHY) += phy-mtk-xsphy.o
>> phy-mtk-hdmi-drv-y := phy-mtk-hdmi.o
>> phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt2701.o
>> phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8173.o
>> +phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8195.o
>> obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o
>>
>> phy-mtk-mipi-dsi-drv-y := phy-mtk-mipi-dsi.o
>> diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
>> new file mode 100644
>> index 000000000000..149015b64c02
>> --- /dev/null
>> +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
>> @@ -0,0 +1,673 @@
>
>..snip..
>
>> +
>> +static int mtk_hdmi_pll_set_hw(struct clk_hw *hw, unsigned char prediv,
>> + unsigned char fbkdiv_high,
>> + unsigned long fbkdiv_low,
>> + unsigned char fbkdiv_hs3, unsigned char posdiv1,
>> + unsigned char posdiv2, unsigned char txprediv,
>> + unsigned char txposdiv,
>> + unsigned char digital_div)
>> +{
>> + unsigned char txposdiv_value = 0;
>> + unsigned char div3_ctrl_value = 0;
>> + unsigned char posdiv_vallue = 0;
>> + unsigned char div_ctrl_value = 0;
>> + unsigned char reserve_3_2_value = 0;
>> + unsigned char prediv_value = 0;
>> + unsigned char reserve13_value = 0;
>> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
>> +
>> + mtk_hdmi_pll_select_source(hw);
>> +
>> + mtk_hdmi_pll_performance_setting(hw);
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
>> + 0x2 << RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT,
>> + RG_HDMITX21_BIAS_PE_BG_VREF_SEL);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
>> + 0x0 << RG_HDMITX21_VREF_SEL_SHIFT,
>> + RG_HDMITX21_VREF_SEL);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_9,
>> + 0x2 << RG_HDMITX21_SLDO_VREF_SEL_SHIFT,
>> + RG_HDMITX21_SLDO_VREF_SEL);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
>> + 0x0 << RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT,
>> + RG_HDMITX21_BIAS_PE_VREF_SELB);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
>> + 0x1 << RG_HDMITX21_SLDOLPF_EN_SHIFT,
>> + RG_HDMITX21_SLDOLPF_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x11 << RG_HDMITX21_INTR_CAL_SHIFT,
>> + RG_HDMITX21_INTR_CAL);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
>> + 0x1 << RG_HDMITXPLL_PWD_SHIFT, RG_HDMITXPLL_PWD);
>> +
>> + /* TXPOSDIV */
>
>Either ilog2() or use a switch...
>
>> + if (txposdiv == 1)
>> + txposdiv_value = 0x0;
>> + else if (txposdiv == 2)
>> + txposdiv_value = 0x1;
>> + else if (txposdiv == 4)
>> + txposdiv_value = 0x2;
>> + else if (txposdiv == 8)
>> + txposdiv_value = 0x3;
>> + else
>> + return -EINVAL;
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + txposdiv_value << RG_HDMITX21_TX_POSDIV_SHIFT,
>> + RG_HDMITX21_TX_POSDIV);
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT,
>> + RG_HDMITX21_TX_POSDIV_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x0 << RG_HDMITX21_FRL_EN_SHIFT, RG_HDMITX21_FRL_EN);
>> +
>> + /* TXPREDIV */
>
>Use a switch.
>
>> + if (txprediv == 2) {
>> + div3_ctrl_value = 0x0;
>> + posdiv_vallue = 0x0;
>> + } else if (txprediv == 4) {
>> + div3_ctrl_value = 0x0;
>> + posdiv_vallue = 0x1;
>> + } else if (txprediv == 6) {
>> + div3_ctrl_value = 0x1;
>> + posdiv_vallue = 0x0;
>> + } else if (txprediv == 12) {
>> + div3_ctrl_value = 0x1;
>> + posdiv_vallue = 0x1;
>> + } else {
>> + return -EINVAL;
>> + }
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
>> + div3_ctrl_value
>> + << RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT,
>> + RG_HDMITXPLL_POSDIV_DIV3_CTRL);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
>> + posdiv_vallue << RG_HDMITXPLL_POSDIV_SHIFT,
>> + RG_HDMITXPLL_POSDIV);
>> +
>> + /* POSDIV1 */
>
>same here.
>
Will do.
>> + if (posdiv1 == 5)
>> + div_ctrl_value = 0x0;
>> + else if (posdiv1 == 10)
>> + div_ctrl_value = 0x1;
>> + else if (posdiv1 == (125 / 10))
>
>/* This is 12.5 in reality, but we get only the integer part */
>case 12:
>
>...or you'll have to use a "deci-divider", which would complicate human readability
>by ... quite a bit, in some cases.
>
>> + div_ctrl_value = 0x2;
>> + else if (posdiv1 == 15)
>> + div_ctrl_value = 0x3;
>> + else
>> + return -EINVAL;
>> +
>
>..snip..
>
>> +
>> +#define PCW_DECIMAL_WIDTH 24
>> +
>> +static int mtk_hdmi_pll_calculate_params(struct clk_hw *hw, unsigned long rate,
>> + unsigned long parent_rate)
>> +{
>> + int ret;
>> + unsigned long long tmds_clk = 0;
>> + unsigned long long pixel_clk = 0;
>> + //pll input source frequency
>
>Fix comments style.
>
>> + unsigned long long da_hdmitx21_ref_ck = 0;
>> + unsigned long long ns_hdmipll_ck = 0; //ICO output clk
>> + //source clk for Display digital
>> + unsigned long long ad_hdmipll_pixel_ck = 0;
>> + unsigned char digital_div = 0;
>> + unsigned long long pcw = 0; //FBDIV
>
>u64 pcw;
>
>> + unsigned char txprediv = 0;
>> + unsigned char txposdiv = 0;
>> + unsigned char fbkdiv_high = 0;
>> + unsigned long fbkdiv_low = 0;
>> + unsigned char posdiv1 = 0;
>> + unsigned char posdiv2 = 0;
>> + unsigned char prediv = 1; //prediv is always 1
>> + unsigned char fbkdiv_hs3 = 1; //fbkdiv_hs3 is always 1
>> + int i = 0;
>> + unsigned char txpredivs[4] = { 2, 4, 6, 12 };
>> +
>> + pixel_clk = rate;
>> + tmds_clk = pixel_clk;
>> +
>> + if (tmds_clk < 25000000 || tmds_clk > 594000000)
>> + return -EINVAL;
>> +
>> + da_hdmitx21_ref_ck = 26000000UL; //in HZ
>> +
>> + /* TXPOSDIV stage treatment:
>> + * 0M < TMDS clk < 54M /8
>> + * 54M <= TMDS clk < 148.35M /4
>> + * 148.35M <=TMDS clk < 296.7M /2
>> + * 296.7 <=TMDS clk <= 594M /1
>> + */
>> + if (tmds_clk < 54000000UL)
>> + txposdiv = 8;
>> + else if (tmds_clk >= 54000000UL && tmds_clk < 148350000UL)
>
> else if (tmds_clk < 148350000UL)
>
>> + txposdiv = 4;
>> + else if (tmds_clk >= 148350000UL && tmds_clk < 296700000UL)
>
> else if (tmds_clk < 296700000UL)
>
>> + txposdiv = 2;
>> + else if (tmds_clk >= 296700000UL && tmds_clk <= 594000000UL)
>
> else if (tmds_clk <= 594000000UL)
>
>> + txposdiv = 1;
>> + else
>> + return -EINVAL;
>> +
>
>..snip..
>
>> +
>> + txprediv = txpredivs[i];
>> +
>> + /* PCW calculation: FBKDIV
>> + * formula: pcw=(frequency_out*2^pcw_bit) / frequency_in / FBKDIV_HS3;
>> + * RG_HDMITXPLL_FBKDIV[32:0]:
>> + * [32,24] 9bit integer, [23,0]:24bit fraction
>> + */
>> + pcw = ns_hdmipll_ck;
>
> pcw = ns_hdmipll_ck << PCW_DECIMAL_WIDTH;
> pcw /= da_hdmitx21_ref_ck;
> pcw /= fbkdiv_hs3;
>
>> + pcw = pcw << PCW_DECIMAL_WIDTH;
>> + pcw = pcw / da_hdmitx21_ref_ck;
>> + pcw = pcw / fbkdiv_hs3;
>> +
>> + if ((pcw / BIT(32)) > 1) {
>
> pcw_nbits = fls64(pcw);
>
> if (pcw_nbits > 33)
> return -EINVAL;
>
> if (pcw_nbits == 33) {
> fbkdiv_high = 1;
> fkbdiv_low = pcw % BIT(32);
> } else {
> fbkdiv_high = 0;
> fbkdiv_low = pcw;
> }
>
>> + return -EINVAL;
>> + } else if ((pcw / BIT(32)) == 1) {
>> + fbkdiv_high = 1;
>> + fbkdiv_low = pcw % BIT(32);
>> + } else {
>> + fbkdiv_high = 0;
>> + fbkdiv_low = pcw;
>> + }
>> +
>> + /* posdiv1:
>> + * posdiv1 stage treatment according to color_depth:
>> + * 24bit -> posdiv1 /10, 30bit -> posdiv1 /12.5,
>> + * 36bit -> posdiv1 /15, 48bit -> posdiv1 /10
>> + */
>> + posdiv1 = 10; // div 10
>> + posdiv2 = 1;
>> + ad_hdmipll_pixel_ck = (ns_hdmipll_ck / 10) / 1;
>
>I understand this as
> ad_hdmipll_pixel_ck = (ns_hdmipll_ck / posdiv1) / posdiv2;
>
>..if that's true, please fix.

I'll try to make everything more readable.
>
>> +
>> + /* Digital clk divider, max /32 */
>> + digital_div = ad_hdmipll_pixel_ck / pixel_clk;
>> + if (!(digital_div <= 32 && digital_div >= 1))
>> + return -EINVAL;
>> +
>> + ret = mtk_hdmi_pll_set_hw(hw, prediv, fbkdiv_high, fbkdiv_low,
>> + fbkdiv_hs3, posdiv1, posdiv2, txprediv,
>> + txposdiv, digital_div);
>> + if (ret)
>> + return -EINVAL;
>> +
>> + return 0;
>> +}
>> +
>> +static int mtk_hdmi_pll_drv_setting(struct clk_hw *hw)
>> +{
>> + unsigned char data_channel_bias, clk_channel_bias;
>> + unsigned char impedance, impedance_en;
>> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
>> + unsigned long tmds_clk;
>> + unsigned long pixel_clk = hdmi_phy->pll_rate;
>> +
>> + tmds_clk = pixel_clk;
>
> tmds_rate = pixel_rate;
>
>...better describes that we're talking about clock rates, not clock per-se.
>
>> +
>> + /* bias & impedance setting:
>> + * 3G < data rate <= 6G: enable impedance 100ohm,
>> + * data channel bias 24mA, clock channel bias 20mA
>> + * pixel clk >= HD, 74.175MHZ <= pixel clk <= 300MHZ:
>> + * enalbe impedance 100ohm
>> + * data channel 20mA, clock channel 16mA
>> + * 27M =< pixel clk < 74.175: disable impedance
>> + * data channel & clock channel bias 10mA
>> + */
>> +
>> + /* 3G < data rate <= 6G, 300M < tmds rate <= 594M */
>> + if (tmds_clk > 300000000UL && tmds_clk <= 594000000UL) {
>> + data_channel_bias = 0x3c; //24mA
>
>There must be an equation to calculate the bias value from milliamps to HW values,
>in which case we would see here...
>
> data_channel_bias = MTK_HDMI_BIAS_MA(24);
> clk_channel_bias = MTK_HDMI_BIAS_MA(20);
> impedance = MTK_HDMI_IMPEDANCE_OHMS(100);
> impedance_en = SOMETHING();
>

That would improve readability by quite a lot.
I'll try to find that equation.
>> + clk_channel_bias = 0x34; //20mA
>> + impedance_en = 0xf;
>> + impedance = 0x36; //100ohm
>> + } else if (pixel_clk >= 74175000UL && pixel_clk <= 300000000UL) {
>> + data_channel_bias = 0x34; //20mA
>> + clk_channel_bias = 0x2c; //16mA
>> + impedance_en = 0xf;
>> + impedance = 0x36; //100ohm
>> + } else if (pixel_clk >= 27000000UL && pixel_clk < 74175000UL) {
>
>By the way, if you invert all the checks here (check from highest pixclk to lowest)
>you can simplify it.
>
I'll give it a try, thx for the suggestion.

>> + data_channel_bias = 0x14; //10mA
>> + clk_channel_bias = 0x14; //10mA
>> + impedance_en = 0x0;
>> + impedance = 0x0;
>> + } else {
>> + return -EINVAL;
>> + }
>> +
>
>..snip..
>
>> +
>> +static int mtk_hdmi_phy_configure(struct phy *phy, union phy_configure_opts *opts)
>> +{
>> + struct phy_configure_opts_dp *dp_opts = &opts->dp;
>> + struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);
>> + int ret = 0;
>> + bool enable = 0;
>> +
>> + ret = clk_set_rate(hdmi_phy->pll, dp_opts->link_rate);
>> +
>
>Please remove this blank line...
>
>> + if (ret)
>> + goto out;
>> +
>> + mtk_mt8195_phy_tmds_high_bit_clk_ratio(hdmi_phy, enable);
>> +
>> +out:
>> + return ret;
>> +}
>> +
>> +struct mtk_hdmi_phy_conf mtk_hdmi_phy_8195_conf = {
>> + .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE,
>> + .hdmi_phy_clk_ops = &mtk_hdmi_pll_ops,
>> + .hdmi_phy_enable_tmds = mtk_hdmi_phy_enable_tmds,
>> + .hdmi_phy_disable_tmds = mtk_hdmi_phy_disable_tmds,
>> + .hdmi_phy_configure = mtk_hdmi_phy_configure,
>> +};
>> +
>> +MODULE_AUTHOR("Can Zeng <[email protected]>");
>> +MODULE_DESCRIPTION("MediaTek MT8195 HDMI PHY Driver");
>> +MODULE_LICENSE("GPL v2");
>
>Regards,
>Angelo
>

2022-09-27 13:55:34

[permalink] [raw]

Subject: Re: [PATCH v1 16/17] drm/mediatek: dpi: Add mt8195 hdmi to DPI driver

On Tue, 20 Sep 2022 14:22, AngeloGioacchino Del Regno
<[email protected]> wrote:
>Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
>> Add the DPI1 hdmi path support in mtk dpi driver
>>
>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>
>> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
>> index 630a4e301ef6..91212b7610e8 100644
>> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
>> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
>> @@ -15,7 +15,10 @@
>> #include <linux/of_graph.h>
>> #include <linux/pinctrl/consumer.h>
>> #include <linux/platform_device.h>
>> +#include <linux/reset.h>
>> #include <linux/types.h>
>> +#include <linux/regmap.h>
>> +#include <linux/mfd/syscon.h>
>>
>> #include <video/videomode.h>
>>
>> @@ -66,10 +69,14 @@ struct mtk_dpi {
>> struct drm_bridge *next_bridge;
>> struct drm_connector *connector;
>> void __iomem *regs;
>> + struct reset_control *reset_ctl;
>> struct device *dev;
>> struct clk *engine_clk;
>> + struct clk *dpi_ck_cg;
>> struct clk *pixel_clk;
>> + struct clk *dpi_sel_clk;
>> struct clk *tvd_clk;
>> + struct clk *hdmi_cg;
>
>
>You're adding new clocks and then you're making *all clocks*, including the
>already existing ones... optional.
>
>That looks seriously odd.... can you please give a devicetree example for
>MT8195 in the next version, perhaps in the cover letter?
>
>Would also make it easier to test this entire big series.
>
>Regards,
>Angelo
>

The clock names are different for MT8195 HDMI than for the legacy DP.
Making everything optional might not have been a smart move.
I'll try to think of something else to make it look less odd.

The device tree I'm using to test things is rather "hackish" and has a bunch of
changes from what is found on linux-next.
I think Jason and Nancy are due to upstream those patches.

I'll try to include something minimal for you to test.
Otherwise would a public branch containing everything work for you?

Thx,
Guillaume.

2022-09-27 13:56:00

[permalink] [raw]

Subject: Re: [PATCH v1 14/17] phy: mediatek: add support for phy-mtk-hdmi-mt8195

On Tue, 20 Sep 2022 09:46, Chunfeng Yun <[email protected]> wrote:
>On Mon, 2022-09-19 at 18:56 +0200, Guillaume Ranquet wrote:
>> Add basic support for the mediatek hdmi phy on MT8195 SoC
>>
>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>
>> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> index bb7593ea4c86..0157acdce56c 100644
>> --- a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> @@ -1344,6 +1344,8 @@ static void mtk_hdmi_bridge_disable(struct
>> drm_bridge *bridge,
>> mtk_hdmi_disable_hdcp_encrypt(hdmi);
>> usleep_range(50000, 50050);
>>
>> + phy_power_off(hdmi->phy);
>> +
>> hdmi->enabled = false;
>> }
>>
>> diff --git a/drivers/phy/mediatek/Makefile
>> b/drivers/phy/mediatek/Makefile
>> index fb1f8edaffa7..c9a50395533e 100644
>> --- a/drivers/phy/mediatek/Makefile
>> +++ b/drivers/phy/mediatek/Makefile
>> @@ -12,6 +12,7 @@ obj-$(CONFIG_PHY_MTK_XSPHY) += phy-mtk-
>> xsphy.o
>> phy-mtk-hdmi-drv-y := phy-mtk-hdmi.o
>> phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt2701.o
>> phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8173.o
>> +phy-mtk-hdmi-drv-y += phy-mtk-hdmi-mt8195.o
>> obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o
>>
>> phy-mtk-mipi-dsi-drv-y := phy-mtk-mipi-dsi.o
>> diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
>> b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
>> new file mode 100644
>> index 000000000000..149015b64c02
>> --- /dev/null
>> +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
>> @@ -0,0 +1,673 @@
>> +// SPDX-License-Identifier: GPL-2.0
>> +/*
>> + * Copyright (c) 2021 MediaTek Inc.
>> + * Copyright (c) 2021 BayLibre, SAS
>> + */
>> +#include <linux/delay.h>
>> +#include <linux/io.h>
>> +#include <linux/mfd/syscon.h>
>> +#include <linux/module.h>
>> +#include <linux/phy/phy.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/types.h>
>> +#include <linux/nvmem-consumer.h>
>> +
>> +#include "phy-mtk-hdmi.h"
>> +#include "phy-mtk-hdmi-mt8195.h"
>> +
>> +static void mtk_hdmi_ana_fifo_en(struct mtk_hdmi_phy *hdmi_phy)
>> +{
>> + /* make data fifo writable for hdmi2.0 */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_ANA_CTL,
>> REG_ANA_HDMI20_FIFO_EN,
>> + REG_ANA_HDMI20_FIFO_EN);
>> +}
>> +
>> +static void
>> +mtk_mt8195_phy_tmds_high_bit_clk_ratio(struct mtk_hdmi_phy
>> *hdmi_phy,
>> + bool enable)
>> +{
>> + mtk_hdmi_ana_fifo_en(hdmi_phy);
>> +
>> + /* HDMI 2.0 specification, 3.4Gbps <= TMDS Bit Rate <= 6G,
>> + * clock bit ratio 1:40, under 3.4Gbps, clock bit ratio 1:10
>> + */
>> + if (enable)
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG,
>> + 0x2 << REG_TXC_DIV_SHIFT,
>Use FIELD_PREP() macro, then no need define REG_TXC_DIV_SHIFT anymore.
>
Didn't know about FIELD_* macros, will use them for V2.

Thx for the suggestion.

>> REG_TXC_DIV);
>> + else
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG, 0,
>> REG_TXC_DIV);
>> +}
>> +
>> +static void mtk_hdmi_pll_select_source(struct clk_hw *hw)
>> +{
>> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, 0x0,
>> REG_HDMITX_REF_XTAL_SEL);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3, 0x0,
>> REG_HDMITX_REF_RESPLL_SEL);
>> +
>> + /* DA_HDMITX21_REF_CK for TXPLL input source */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10, 0x0,
>> + RG_HDMITXPLL_REF_CK_SEL);
>> +}
>> +
>> +static int mtk_hdmi_pll_performance_setting(struct clk_hw *hw)
>> +{
>> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
>> +
>> + /* BP2 */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
>> + 0x1 << RG_HDMITXPLL_BP2_SHIFT,
>> RG_HDMITXPLL_BP2);
>> +
>> + /* BC */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
>> + 0x3 << RG_HDMITXPLL_BC_SHIFT,
>> RG_HDMITXPLL_BC);
>> +
>> + /* IC */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
>> + 0x1 << RG_HDMITXPLL_IC_SHIFT,
>> RG_HDMITXPLL_IC);
>> +
>> + /* BR */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
>> + 0x2 << RG_HDMITXPLL_BR_SHIFT,
>> RG_HDMITXPLL_BR);
>> +
>> + /* IR */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
>> + 0x2 << RG_HDMITXPLL_IR_SHIFT,
>> RG_HDMITXPLL_IR);
>> +
>> + /* BP */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
>> + 0xf << RG_HDMITXPLL_BP_SHIFT,
>> RG_HDMITXPLL_BP);
>> +
>> + /* IBAND_FIX_EN, RESERVE[14] */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
>> + 0x0 << RG_HDMITXPLL_IBAND_FIX_EN_SHIFT,
>> + RG_HDMITXPLL_IBAND_FIX_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
>> + 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT,
>> + RG_HDMITXPLL_RESERVE_BIT14);
>> +
>> + /* HIKVCO */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
>> + 0x0 << RG_HDMITXPLL_HIKVCO_SHIFT,
>> + RG_HDMITXPLL_HIKVCO);
>> +
>> + /* HREN */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
>> + 0x1 << RG_HDMITXPLL_HREN_SHIFT,
>> RG_HDMITXPLL_HREN);
>> +
>> + /* LVR_SEL */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
>> + 0x1 << RG_HDMITXPLL_LVR_SEL_SHIFT,
>> + RG_HDMITXPLL_LVR_SEL);
>> +
>> + /* RG_HDMITXPLL_RESERVE[12:11] */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
>> + 0x3 << RG_HDMITXPLL_RESERVE_BIT12_11_SHIFT,
>> + RG_HDMITXPLL_RESERVE_BIT12_11);
>> +
>> + /* TCL_EN */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_0,
>> + 0x1 << RG_HDMITXPLL_TCL_EN_SHIFT,
>> + RG_HDMITXPLL_TCL_EN);
>> +
>> + return 0;
>> +}
>> +
>> +static int mtk_hdmi_pll_set_hw(struct clk_hw *hw, unsigned char
>> prediv,
>> + unsigned char fbkdiv_high,
>> + unsigned long fbkdiv_low,
>> + unsigned char fbkdiv_hs3, unsigned char
>> posdiv1,
>> + unsigned char posdiv2, unsigned char
>> txprediv,
>> + unsigned char txposdiv,
>> + unsigned char digital_div)
>> +{
>> + unsigned char txposdiv_value = 0;
>> + unsigned char div3_ctrl_value = 0;
>> + unsigned char posdiv_vallue = 0;
>> + unsigned char div_ctrl_value = 0;
>> + unsigned char reserve_3_2_value = 0;
>> + unsigned char prediv_value = 0;
>> + unsigned char reserve13_value = 0;
>> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
>> +
>> + mtk_hdmi_pll_select_source(hw);
>> +
>> + mtk_hdmi_pll_performance_setting(hw);
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
>> + 0x2 << RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT,
>> + RG_HDMITX21_BIAS_PE_BG_VREF_SEL);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
>> + 0x0 << RG_HDMITX21_VREF_SEL_SHIFT,
>> + RG_HDMITX21_VREF_SEL);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_9,
>> + 0x2 << RG_HDMITX21_SLDO_VREF_SEL_SHIFT,
>> + RG_HDMITX21_SLDO_VREF_SEL);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
>> + 0x0 << RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT,
>> + RG_HDMITX21_BIAS_PE_VREF_SELB);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
>> + 0x1 << RG_HDMITX21_SLDOLPF_EN_SHIFT,
>> + RG_HDMITX21_SLDOLPF_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x11 << RG_HDMITX21_INTR_CAL_SHIFT,
>> + RG_HDMITX21_INTR_CAL);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
>> + 0x1 << RG_HDMITXPLL_PWD_SHIFT,
>> RG_HDMITXPLL_PWD);
>> +
>> + /* TXPOSDIV */
>> + if (txposdiv == 1)
>> + txposdiv_value = 0x0;
>> + else if (txposdiv == 2)
>> + txposdiv_value = 0x1;
>> + else if (txposdiv == 4)
>> + txposdiv_value = 0x2;
>> + else if (txposdiv == 8)
>> + txposdiv_value = 0x3;
>> + else
>> + return -EINVAL;
>use ilog2()?
>
Yes, that would makes things more readable.

>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + txposdiv_value <<
>> RG_HDMITX21_TX_POSDIV_SHIFT,
>> + RG_HDMITX21_TX_POSDIV);
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT,
>> + RG_HDMITX21_TX_POSDIV_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x0 << RG_HDMITX21_FRL_EN_SHIFT,
>> RG_HDMITX21_FRL_EN);
>> +
>> + /* TXPREDIV */
>> + if (txprediv == 2) {
>> + div3_ctrl_value = 0x0;
>> + posdiv_vallue = 0x0;
>> + } else if (txprediv == 4) {
>> + div3_ctrl_value = 0x0;
>> + posdiv_vallue = 0x1;
>> + } else if (txprediv == 6) {
>> + div3_ctrl_value = 0x1;
>> + posdiv_vallue = 0x0;
>> + } else if (txprediv == 12) {
>> + div3_ctrl_value = 0x1;
>> + posdiv_vallue = 0x1;
>> + } else {
>> + return -EINVAL;
>> + }
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
>> + div3_ctrl_value
>> + <<
>> RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT,
>> + RG_HDMITXPLL_POSDIV_DIV3_CTRL);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
>> + posdiv_vallue << RG_HDMITXPLL_POSDIV_SHIFT,
>> + RG_HDMITXPLL_POSDIV);
>> +
>> + /* POSDIV1 */
>> + if (posdiv1 == 5)
>> + div_ctrl_value = 0x0;
>> + else if (posdiv1 == 10)
>> + div_ctrl_value = 0x1;
>> + else if (posdiv1 == (125 / 10))
>> + div_ctrl_value = 0x2;
>> + else if (posdiv1 == 15)
>> + div_ctrl_value = 0x3;
>> + else
>> + return -EINVAL;
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
>> + div_ctrl_value <<
>> RG_HDMITXPLL_DIV_CTRL_SHIFT,
>> + RG_HDMITXPLL_DIV_CTRL);
>> +
>> + /* DE add new setting */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
>> + 0x0 << RG_HDMITXPLL_RESERVE_BIT14_SHIFT,
>> + RG_HDMITXPLL_RESERVE_BIT14);
>> +
>> + /* POSDIV2 */
>> + if (posdiv2 == 1)
>> + reserve_3_2_value = 0x0;
>> + else if (posdiv2 == 2)
>> + reserve_3_2_value = 0x1;
>> + else if (posdiv2 == 4)
>> + reserve_3_2_value = 0x2;
>> + else if (posdiv2 == 6)
>> + reserve_3_2_value = 0x3;
>> + else
>> + return -EINVAL;
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
>> + reserve_3_2_value
>> + << RG_HDMITXPLL_RESERVE_BIT3_2_SHIFT,
>> + RG_HDMITXPLL_RESERVE_BIT3_2);
>> +
>> + /* DE add new setting */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
>> + 0x2 << RG_HDMITXPLL_RESERVE_BIT1_0_SHIFT,
>> + RG_HDMITXPLL_RESERVE_BIT1_0);
>> +
>> + /* PREDIV */
>> + if (prediv == 1)
>> + prediv_value = 0x0;
>> + else if (prediv == 2)
>> + prediv_value = 0x1;
>> + else if (prediv == 4)
>> + prediv_value = 0x2;
>> + else
>> + return -EINVAL;
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
>> + prediv_value << RG_HDMITXPLL_PREDIV_SHIFT,
>> + RG_HDMITXPLL_PREDIV);
>> +
>> + /* FBKDIV_HS3 */
>> + if (fbkdiv_hs3 == 1)
>> + reserve13_value = 0x0;
>> + else if (fbkdiv_hs3 == 2)
>> + reserve13_value = 0x1;
>> + else
>> + return -EINVAL;
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_1,
>> + reserve13_value <<
>> RG_HDMITXPLL_RESERVE_BIT13_SHIFT,
>> + RG_HDMITXPLL_RESERVE_BIT13);
>> +
>> + /* FBDIV */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
>> + fbkdiv_high <<
>> RG_HDMITXPLL_FBKDIV_high_SHIFT,
>> + RG_HDMITXPLL_FBKDIV_HIGH);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_3,
>> + fbkdiv_low << RG_HDMITXPLL_FBKDIV_low_SHIFT,
>> + RG_HDMITXPLL_FBKDIV_low);
>> +
>> + /* Digital DIVIDER */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3,
>> + 0x0 << REG_PIXEL_CLOCK_SEL_SHIFT,
>> + REG_PIXEL_CLOCK_SEL);
>> +
>> + if (digital_div == 1) {
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3,
>> + 0x0 << REG_HDMITX_PIXEL_CLOCK_SHIFT,
>> + REG_HDMITX_PIXEL_CLOCK);
>> + } else {
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3,
>> + 0x1 << REG_HDMITX_PIXEL_CLOCK_SHIFT,
>> + REG_HDMITX_PIXEL_CLOCK);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_CTL_3,
>> + (digital_div - 1) <<
>> REG_HDMITXPLL_DIV_SHIFT,
>> + REG_HDMITXPLL_DIV);
>> + }
>> +
>> + return 0;
>> +}
>> +
>> +#define PCW_DECIMAL_WIDTH 24
>> +
>> +static int mtk_hdmi_pll_calculate_params(struct clk_hw *hw, unsigned
>> long rate,
>> + unsigned long parent_rate)
>> +{
>> + int ret;
>> + unsigned long long tmds_clk = 0;
>> + unsigned long long pixel_clk = 0;
>> + //pll input source frequency
>> + unsigned long long da_hdmitx21_ref_ck = 0;
>> + unsigned long long ns_hdmipll_ck = 0; //ICO output clk
>> + //source clk for Display digital
>> + unsigned long long ad_hdmipll_pixel_ck = 0;
>> + unsigned char digital_div = 0;
>> + unsigned long long pcw = 0; //FBDIV
>> + unsigned char txprediv = 0;
>> + unsigned char txposdiv = 0;
>> + unsigned char fbkdiv_high = 0;
>> + unsigned long fbkdiv_low = 0;
>> + unsigned char posdiv1 = 0;
>> + unsigned char posdiv2 = 0;
>> + unsigned char prediv = 1; //prediv is always 1
>> + unsigned char fbkdiv_hs3 = 1; //fbkdiv_hs3 is always 1
>> + int i = 0;
>> + unsigned char txpredivs[4] = { 2, 4, 6, 12 };
>> +
>> + pixel_clk = rate;
>> + tmds_clk = pixel_clk;
>> +
>> + if (tmds_clk < 25000000 || tmds_clk > 594000000)
>> + return -EINVAL;
>> +
>> + da_hdmitx21_ref_ck = 26000000UL; //in HZ
>> +
>> + /* TXPOSDIV stage treatment:
>> + * 0M < TMDS clk < 54M /8
>> + * 54M <= TMDS clk < 148.35M /4
>> + * 148.35M <=TMDS clk < 296.7M /2
>> + * 296.7 <=TMDS clk <= 594M /1
>> + */
>> + if (tmds_clk < 54000000UL)
>> + txposdiv = 8;
>> + else if (tmds_clk >= 54000000UL && tmds_clk < 148350000UL)
>> + txposdiv = 4;
>> + else if (tmds_clk >= 148350000UL && tmds_clk < 296700000UL)
>> + txposdiv = 2;
>> + else if (tmds_clk >= 296700000UL && tmds_clk <= 594000000UL)
>> + txposdiv = 1;
>> + else
>> + return -EINVAL;
>> +
>> + /* calculate txprediv: can be 2, 4, 6, 12
>> + * ICO clk = 5*TMDS_CLK*TXPOSDIV*TXPREDIV
>> + * ICO clk constraint: 5G =< ICO clk <= 12G
>> + */
>> + for (i = 0; i < ARRAY_SIZE(txpredivs); i++) {
>> + ns_hdmipll_ck = 5 * tmds_clk * txposdiv * txpredivs[i];
>> + if (ns_hdmipll_ck >= 5000000000UL &&
>> + ns_hdmipll_ck <= 12000000000UL)
>> + break;
>> + }
>> + if (i == (ARRAY_SIZE(txpredivs) - 1) &&
>> + (ns_hdmipll_ck < 5000000000UL || ns_hdmipll_ck >
>> 12000000000UL)) {
>> + return -EINVAL;
>> + }
>> + if (i == ARRAY_SIZE(txpredivs))
>> + return -EINVAL;
>> +
>> + txprediv = txpredivs[i];
>> +
>> + /* PCW calculation: FBKDIV
>> + * formula: pcw=(frequency_out*2^pcw_bit) / frequency_in /
>> FBKDIV_HS3;
>> + * RG_HDMITXPLL_FBKDIV[32:0]:
>> + * [32,24] 9bit integer, [23,0]:24bit fraction
>> + */
>> + pcw = ns_hdmipll_ck;
>> + pcw = pcw << PCW_DECIMAL_WIDTH;
>> + pcw = pcw / da_hdmitx21_ref_ck;
>> + pcw = pcw / fbkdiv_hs3;
>> +
>> + if ((pcw / BIT(32)) > 1) {
>> + return -EINVAL;
>> + } else if ((pcw / BIT(32)) == 1) {
>> + fbkdiv_high = 1;
>> + fbkdiv_low = pcw % BIT(32);
>> + } else {
>> + fbkdiv_high = 0;
>> + fbkdiv_low = pcw;
>> + }
>> +
>> + /* posdiv1:
>> + * posdiv1 stage treatment according to color_depth:
>> + * 24bit -> posdiv1 /10, 30bit -> posdiv1 /12.5,
>> + * 36bit -> posdiv1 /15, 48bit -> posdiv1 /10
>> + */
>> + posdiv1 = 10; // div 10
>> + posdiv2 = 1;
>> + ad_hdmipll_pixel_ck = (ns_hdmipll_ck / 10) / 1;
>> +
>> + /* Digital clk divider, max /32 */
>> + digital_div = ad_hdmipll_pixel_ck / pixel_clk;
>> + if (!(digital_div <= 32 && digital_div >= 1))
>> + return -EINVAL;
>> +
>> + ret = mtk_hdmi_pll_set_hw(hw, prediv, fbkdiv_high, fbkdiv_low,
>> + fbkdiv_hs3, posdiv1, posdiv2,
>> txprediv,
>> + txposdiv, digital_div);
>> + if (ret)
>> + return -EINVAL;
>> +
>> + return 0;
>> +}
>> +
>> +static int mtk_hdmi_pll_drv_setting(struct clk_hw *hw)
>> +{
>> + unsigned char data_channel_bias, clk_channel_bias;
>> + unsigned char impedance, impedance_en;
>> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
>> + unsigned long tmds_clk;
>> + unsigned long pixel_clk = hdmi_phy->pll_rate;
>> +
>> + tmds_clk = pixel_clk;
>> +
>> + /* bias & impedance setting:
>> + * 3G < data rate <= 6G: enable impedance 100ohm,
>> + * data channel bias 24mA, clock channel bias 20mA
>> + * pixel clk >= HD, 74.175MHZ <= pixel clk <= 300MHZ:
>> + * enalbe impedance 100ohm
>> + * data channel 20mA, clock channel 16mA
>> + * 27M =< pixel clk < 74.175: disable impedance
>> + * data channel & clock channel bias 10mA
>> + */
>> +
>> + /* 3G < data rate <= 6G, 300M < tmds rate <= 594M */
>> + if (tmds_clk > 300000000UL && tmds_clk <= 594000000UL) {
>> + data_channel_bias = 0x3c; //24mA
>> + clk_channel_bias = 0x34; //20mA
>> + impedance_en = 0xf;
>> + impedance = 0x36; //100ohm
>> + } else if (pixel_clk >= 74175000UL && pixel_clk <= 300000000UL)
>> {
>> + data_channel_bias = 0x34; //20mA
>> + clk_channel_bias = 0x2c; //16mA
>> + impedance_en = 0xf;
>> + impedance = 0x36; //100ohm
>> + } else if (pixel_clk >= 27000000UL && pixel_clk < 74175000UL) {
>> + data_channel_bias = 0x14; //10mA
>> + clk_channel_bias = 0x14; //10mA
>> + impedance_en = 0x0;
>> + impedance = 0x0;
>> + } else {
>> + return -EINVAL;
>> + }
>> +
>> + /* bias */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1,
>> + data_channel_bias <<
>> RG_HDMITX21_DRV_IBIAS_D0_SHIFT,
>> + RG_HDMITX21_DRV_IBIAS_D0);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1,
>> + data_channel_bias <<
>> RG_HDMITX21_DRV_IBIAS_D1_SHIFT,
>> + RG_HDMITX21_DRV_IBIAS_D1);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_1,
>> + data_channel_bias <<
>> RG_HDMITX21_DRV_IBIAS_D2_SHIFT,
>> + RG_HDMITX21_DRV_IBIAS_D2);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
>> + clk_channel_bias <<
>> RG_HDMITX21_DRV_IBIAS_CLK_SHIFT,
>> + RG_HDMITX21_DRV_IBIAS_CLK);
>> +
>> + /* impedance */
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
>> + impedance_en << RG_HDMITX21_DRV_IMP_EN_SHIFT,
>> + RG_HDMITX21_DRV_IMP_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2,
>> + impedance <<
>> RG_HDMITX21_DRV_IMP_D0_EN1_SHIFT,
>> + RG_HDMITX21_DRV_IMP_D0_EN1);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2,
>> + impedance <<
>> RG_HDMITX21_DRV_IMP_D1_EN1_SHIFT,
>> + RG_HDMITX21_DRV_IMP_D1_EN1);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2,
>> + impedance <<
>> RG_HDMITX21_DRV_IMP_D2_EN1_SHIFT,
>> + RG_HDMITX21_DRV_IMP_D2_EN1);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_2,
>> + impedance <<
>> RG_HDMITX21_DRV_IMP_CLK_EN1_SHIFT,
>> + RG_HDMITX21_DRV_IMP_CLK_EN1);
>> +
>> + return 0;
>> +}
>> +
>> +static int mtk_hdmi_pll_prepare(struct clk_hw *hw)
>> +{
>> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x1 << RG_HDMITX21_TX_POSDIV_EN_SHIFT,
>> + RG_HDMITX21_TX_POSDIV_EN);
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
>> + 0xf << RG_HDMITX21_SER_EN_SHIFT,
>> RG_HDMITX21_SER_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x1 << RG_HDMITX21_D0_DRV_OP_EN_SHIFT,
>> + RG_HDMITX21_D0_DRV_OP_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x1 << RG_HDMITX21_D1_DRV_OP_EN_SHIFT,
>> + RG_HDMITX21_D1_DRV_OP_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x1 << RG_HDMITX21_D2_DRV_OP_EN_SHIFT,
>> + RG_HDMITX21_D2_DRV_OP_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x1 << RG_HDMITX21_CK_DRV_OP_EN_SHIFT,
>> + RG_HDMITX21_CK_DRV_OP_EN);
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x0 << RG_HDMITX21_FRL_D0_EN_SHIFT,
>> + RG_HDMITX21_FRL_D0_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x0 << RG_HDMITX21_FRL_D1_EN_SHIFT,
>> + RG_HDMITX21_FRL_D1_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x0 << RG_HDMITX21_FRL_D2_EN_SHIFT,
>> + RG_HDMITX21_FRL_D2_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x0 << RG_HDMITX21_FRL_CK_EN_SHIFT,
>> + RG_HDMITX21_FRL_CK_EN);
>> +
>> + mtk_hdmi_pll_drv_setting(hw);
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
>> + 0x0 << RG_HDMITX21_BG_PWD_SHIFT,
>> RG_HDMITX21_BG_PWD);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x1 << RG_HDMITX21_BIAS_EN_SHIFT,
>> + RG_HDMITX21_BIAS_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
>> + 0x1 << RG_HDMITX21_CKLDO_EN_SHIFT,
>> + RG_HDMITX21_CKLDO_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
>> + 0xf << RG_HDMITX21_SLDO_EN_SHIFT,
>> + RG_HDMITX21_SLDO_EN);
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
>> + 0x1 << DA_HDMITXPLL_PWR_ON_SHIFT,
>> + DA_HDMITXPLL_PWR_ON);
>> + usleep_range(5, 10);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
>> + 0x0 << DA_HDMITXPLL_ISO_EN_SHIFT,
>> + DA_HDMITXPLL_ISO_EN);
>> + usleep_range(5, 10);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
>> + 0x0 << RG_HDMITXPLL_PWD_SHIFT,
>> RG_HDMITXPLL_PWD);
>> + usleep_range(30, 50);
>> + return 0;
>> +}
>> +
>> +static void mtk_hdmi_pll_unprepare(struct clk_hw *hw)
>> +{
>> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_10,
>> + 0x1 << RG_HDMITX21_BG_PWD_SHIFT,
>> RG_HDMITX21_BG_PWD);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_6,
>> + 0x0 << RG_HDMITX21_BIAS_EN_SHIFT,
>> + RG_HDMITX21_BIAS_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
>> + 0x0 << RG_HDMITX21_CKLDO_EN_SHIFT,
>> + RG_HDMITX21_CKLDO_EN);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_3,
>> + 0x0 << RG_HDMITX21_SLDO_EN_SHIFT,
>> + RG_HDMITX21_SLDO_EN);
>> +
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_2,
>> + 0x1 << RG_HDMITXPLL_PWD_SHIFT,
>> RG_HDMITXPLL_PWD);
>> + usleep_range(10, 20);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
>> + 0x1 << DA_HDMITXPLL_ISO_EN_SHIFT,
>> + DA_HDMITXPLL_ISO_EN);
>> + usleep_range(10, 20);
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_PLL_CFG_4,
>> + 0x0 << DA_HDMITXPLL_PWR_ON_SHIFT,
>> + DA_HDMITXPLL_PWR_ON);
>> +}
>> +
>> +static int mtk_hdmi_pll_set_rate(struct clk_hw *hw, unsigned long
>> rate,
>> + unsigned long parent_rate)
>> +{
>> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
>> + int ret;
>> +
>> + dev_dbg(hdmi_phy->dev, "%s: %lu Hz, parent: %lu Hz\n",
>> __func__, rate,
>> + parent_rate);
>> +
>> + ret = mtk_hdmi_pll_calculate_params(hw, rate, parent_rate);
>> + if (ret != 0)
>> + return -EINVAL;
>> +
>> + return 0;
>> +}
>> +
>> +static long mtk_hdmi_pll_round_rate(struct clk_hw *hw, unsigned long
>> rate,
>> + unsigned long *parent_rate)
>> +{
>> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
>> +
>> + hdmi_phy->pll_rate = rate;
>> + return rate;
>> +}
>> +
>> +static unsigned long mtk_hdmi_pll_recalc_rate(struct clk_hw *hw,
>> + unsigned long
>> parent_rate)
>> +{
>> + struct mtk_hdmi_phy *hdmi_phy = to_mtk_hdmi_phy(hw);
>> +
>> + return hdmi_phy->pll_rate;
>> +}
>> +
>> +static const struct clk_ops mtk_hdmi_pll_ops = {
>> + .prepare = mtk_hdmi_pll_prepare,
>> + .unprepare = mtk_hdmi_pll_unprepare,
>> + .set_rate = mtk_hdmi_pll_set_rate,
>> + .round_rate = mtk_hdmi_pll_round_rate,
>> + .recalc_rate = mtk_hdmi_pll_recalc_rate,
>> +};
>> +
>> +static void vtx_signal_en(struct mtk_hdmi_phy *hdmi_phy, bool on)
>> +{
>> + if (on)
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
>> RG_HDMITX21_DRV_EN,
>> + RG_HDMITX21_DRV_EN);
>> + else
>> + mtk_hdmi_phy_mask(hdmi_phy, HDMI_1_CFG_0,
>> + 0x0 << RG_HDMITX21_DRV_EN_SHIFT,
>> + RG_HDMITX21_DRV_EN);
>> +}
>> +
>> +static void mtk_hdmi_phy_enable_tmds(struct mtk_hdmi_phy *hdmi_phy)
>> +{
>> + vtx_signal_en(hdmi_phy, true);
>> + usleep_range(100, 150);
>> +}
>> +
>> +static void mtk_hdmi_phy_disable_tmds(struct mtk_hdmi_phy *hdmi_phy)
>> +{
>> + vtx_signal_en(hdmi_phy, false);
>> +}
>> +
>> +static int mtk_hdmi_phy_configure(struct phy *phy, union
>> phy_configure_opts *opts)
>> +{
>> + struct phy_configure_opts_dp *dp_opts = &opts->dp;
>> + struct mtk_hdmi_phy *hdmi_phy = phy_get_drvdata(phy);
>> + int ret = 0;
>> + bool enable = 0;
>> +
>> + ret = clk_set_rate(hdmi_phy->pll, dp_opts->link_rate);
>> +
>> + if (ret)
>> + goto out;
>> +
>> + mtk_mt8195_phy_tmds_high_bit_clk_ratio(hdmi_phy, enable);
>> +
>> +out:
>> + return ret;
>> +}
>> +
>> +struct mtk_hdmi_phy_conf mtk_hdmi_phy_8195_conf = {
>> + .flags = CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE,
>> + .hdmi_phy_clk_ops = &mtk_hdmi_pll_ops,
>> + .hdmi_phy_enable_tmds = mtk_hdmi_phy_enable_tmds,
>> + .hdmi_phy_disable_tmds = mtk_hdmi_phy_disable_tmds,
>> + .hdmi_phy_configure = mtk_hdmi_phy_configure,
>> +};
>> +
>> +MODULE_AUTHOR("Can Zeng <[email protected]>");
>> +MODULE_DESCRIPTION("MediaTek MT8195 HDMI PHY Driver");
>> +MODULE_LICENSE("GPL v2");
>> diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h
>> b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h
>> new file mode 100644
>> index 000000000000..3cc51d8a18a4
>> --- /dev/null
>> +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.h
>> @@ -0,0 +1,204 @@
>> +/* SPDX-License-Identifier: GPL-2.0 */
>> +/*
>> + * Copyright (c) 2021 MediaTek Inc.
>> + * Copyright (c) 2021 BayLibre, SAS
>> + */
>> +
>> +#ifndef _MTK_HDMI_PHY_8195_H
>> +#define _MTK_HDMI_PHY_8195_H
>> +
>> +#include <linux/types.h>
>> +#include <linux/clk.h>
>> +#include <linux/clk-provider.h>
>> +
>> +#define DA_HDMITXPLL_ISO_EN BIT(1)
>> +#define DA_HDMITXPLL_ISO_EN_SHIFT (1)
>> +#define DA_HDMITXPLL_PWR_ON BIT(2)
>> +#define DA_HDMITXPLL_PWR_ON_SHIFT (2)
>> +
>> +#define HDMI20_CLK_CFG 0x70
>> +
>> +#define HDMI_1_CFG_0 0x00
>> +#define HDMI_1_CFG_1 0x04
>> +#define HDMI_1_CFG_10 0x40
>> +#define HDMI_1_CFG_2 0x08
>> +#define HDMI_1_CFG_21 0x84
>> +#define HDMI_1_CFG_22 0x88
>> +#define HDMI_1_CFG_3 0x0c
>> +#define HDMI_1_CFG_6 0x18
>> +#define HDMI_1_CFG_9 0x24
>> +#define HDMI_1_PLL_CFG_0 0x44
>> +#define HDMI_1_PLL_CFG_1 0x48
>> +#define HDMI_1_PLL_CFG_2 0x4c
>> +#define HDMI_1_PLL_CFG_3 0x50
>> +#define HDMI_1_PLL_CFG_4 0x54
>> +
>> +#define HDMI_ANA_CTL 0x7c
>> +
>> +#define HDMI_CTL_1 0xc4
>> +#define HDMI_CTL_3 0xcc
>> +
>> +#define REG_ANA_HDMI20_FIFO_EN BIT(16)
>> +
>> +#define REG_HDMITXPLL_DIV GENMASK(4, 0)
>> +#define REG_HDMITXPLL_DIV_SHIFT (0)
>No need define *_SHIFT macros, use FIELD_PREP() etc
>
>> +#define REG_HDMITX_PIXEL_CLOCK BIT(23)
>> +#define REG_HDMITX_PIXEL_CLOCK_SHIFT (23)
>> +#define REG_HDMITX_REF_RESPLL_SEL BIT(9)
>> +#define REG_HDMITX_REF_RESPLL_SEL_SHIFT (9)
>> +#define REG_HDMITX_REF_XTAL_SEL BIT(7)
>> +#define REG_HDMITX_REF_XTAL_SEL_SHIFT (7)
>> +
>> +#define REG_PIXEL_CLOCK_SEL BIT(10)
>> +#define REG_PIXEL_CLOCK_SEL_SHIFT (10)
>> +
>> +#define REG_TXC_DIV GENMASK(31, 30)
>> +#define REG_TXC_DIV_SHIFT (30)
>> +
>> +#define RG_HDMITX21_BG_PWD BIT(20)
>> +#define RG_HDMITX21_BG_PWD_SHIFT (20)
>> +
>> +#define RG_HDMITX21_BIAS_EN BIT(29)
>> +#define RG_HDMITX21_BIAS_EN_SHIFT (29)
>> +#define RG_HDMITX21_BIAS_PE_BG_VREF_SEL GENMASK(16, 15)
>> +#define RG_HDMITX21_BIAS_PE_BG_VREF_SEL_SHIFT (15)
>> +#define RG_HDMITX21_BIAS_PE_VREF_SELB GENMASK(10, 10)
>> +#define RG_HDMITX21_BIAS_PE_VREF_SELB_SHIFT (10)
>> +
>> +#define RG_HDMITX21_CKLDO_EN BIT(3)
>> +#define RG_HDMITX21_CKLDO_EN_SHIFT (3)
>> +
>> +#define RG_HDMITX21_CK_DRV_OP_EN BIT(11)
>> +#define RG_HDMITX21_CK_DRV_OP_EN_SHIFT (11)
>> +
>> +#define RG_HDMITX21_D0_DRV_OP_EN BIT(10)
>> +#define RG_HDMITX21_D0_DRV_OP_EN_SHIFT (10)
>> +
>> +#define RG_HDMITX21_D1_DRV_OP_EN BIT(9)
>> +#define RG_HDMITX21_D1_DRV_OP_EN_SHIFT (9)
>> +
>> +#define RG_HDMITX21_D2_DRV_OP_EN BIT(8)
>> +#define RG_HDMITX21_D2_DRV_OP_EN_SHIFT (8)
>> +
>> +#define RG_HDMITX21_DRV_EN GENMASK(27, 24)
>> +#define RG_HDMITX21_DRV_EN_SHIFT (24)
>> +#define RG_HDMITX21_DRV_IBIAS_CLK GENMASK(10, 5)
>> +#define RG_HDMITX21_DRV_IBIAS_CLK_SHIFT (5)
>> +#define RG_HDMITX21_DRV_IBIAS_D0 GENMASK(19, 14)
>> +#define RG_HDMITX21_DRV_IBIAS_D0_FFE1 GENMASK(21, 17)
>> +#define RG_HDMITX21_DRV_IBIAS_D0_FFE1_SHIFT (17)
>> +#define RG_HDMITX21_DRV_IBIAS_D0_FFE2 GENMASK(23, 20)
>> +#define RG_HDMITX21_DRV_IBIAS_D0_FFE2_SHIFT (20)
>> +#define RG_HDMITX21_DRV_IBIAS_D0_SHIFT (14)
>> +#define RG_HDMITX21_DRV_IBIAS_D1 GENMASK(25, 20)
>> +#define RG_HDMITX21_DRV_IBIAS_D1_FFE1 GENMASK(26, 22)
>> +#define RG_HDMITX21_DRV_IBIAS_D1_FFE1_SHIFT (22)
>> +#define RG_HDMITX21_DRV_IBIAS_D1_FFE2 GENMASK(27, 24)
>> +#define RG_HDMITX21_DRV_IBIAS_D1_FFE2_SHIFT (24)
>> +#define RG_HDMITX21_DRV_IBIAS_D1_SHIFT (20)
>> +#define RG_HDMITX21_DRV_IBIAS_D2 GENMASK(31, 26)
>> +#define RG_HDMITX21_DRV_IBIAS_D2_FFE1 GENMASK(31, 27)
>> +#define RG_HDMITX21_DRV_IBIAS_D2_FFE1_SHIFT (27)
>> +#define RG_HDMITX21_DRV_IBIAS_D2_FFE2 GENMASK(31, 28)
>> +#define RG_HDMITX21_DRV_IBIAS_D2_FFE2_SHIFT (28)
>> +#define RG_HDMITX21_DRV_IBIAS_D2_SHIFT (26)
>> +#define RG_HDMITX21_DRV_IMP_CLK_EN1 GENMASK(31, 26)
>> +#define RG_HDMITX21_DRV_IMP_CLK_EN1_SHIFT (26)
>> +#define RG_HDMITX21_DRV_IMP_D0_EN1 GENMASK(13, 8)
>> +#define RG_HDMITX21_DRV_IMP_D0_EN1_SHIFT (8)
>> +#define RG_HDMITX21_DRV_IMP_D1_EN1 GENMASK(19, 14)
>> +#define RG_HDMITX21_DRV_IMP_D1_EN1_SHIFT (14)
>> +#define RG_HDMITX21_DRV_IMP_D2_EN1 GENMASK(25, 20)
>> +#define RG_HDMITX21_DRV_IMP_D2_EN1_SHIFT (20)
>> +#define RG_HDMITX21_DRV_IMP_EN GENMASK(23, 20)
>> +#define RG_HDMITX21_DRV_IMP_EN_SHIFT (20)
>> +
>> +#define RG_HDMITX21_FRL_CK_EN BIT(13)
>> +#define RG_HDMITX21_FRL_CK_EN_SHIFT (13)
>> +#define RG_HDMITX21_FRL_D0_EN BIT(14)
>> +#define RG_HDMITX21_FRL_D0_EN_SHIFT (14)
>> +#define RG_HDMITX21_FRL_D1_EN BIT(15)
>> +#define RG_HDMITX21_FRL_D1_EN_SHIFT (15)
>> +#define RG_HDMITX21_FRL_D2_EN BIT(16)
>> +#define RG_HDMITX21_FRL_D2_EN_SHIFT (16)
>> +#define RG_HDMITX21_FRL_EN BIT(12)
>> +#define RG_HDMITX21_FRL_EN_SHIFT (12)
>> +
>> +#define RG_HDMITX21_INTR_CAL GENMASK(22, 18)
>> +#define RG_HDMITX21_INTR_CAL_READOUT GENMASK(22, 18)
>> +#define RG_HDMITX21_INTR_CAL_READOUT_SHIFT (18)
>> +#define RG_HDMITX21_INTR_CAL_SHIFT (18)
>> +
>> +#define RG_HDMITX21_SER_EN GENMASK(31, 28)
>> +#define RG_HDMITX21_SER_EN_SHIFT (28)
>> +
>> +#define RG_HDMITX21_SLDOLPF_EN BIT(7)
>> +#define RG_HDMITX21_SLDOLPF_EN_SHIFT (7)
>> +#define RG_HDMITX21_SLDO_EN GENMASK(11, 8)
>> +#define RG_HDMITX21_SLDO_EN_SHIFT (8)
>> +#define RG_HDMITX21_SLDO_VREF_SEL GENMASK(5, 4)
>> +#define RG_HDMITX21_SLDO_VREF_SEL_SHIFT (4)
>> +
>> +#define RG_HDMITX21_TX_POSDIV GENMASK(27, 26)
>> +#define RG_HDMITX21_TX_POSDIV_EN GENMASK(28, 28)
>> +#define RG_HDMITX21_TX_POSDIV_EN_SHIFT (28)
>> +#define RG_HDMITX21_TX_POSDIV_SHIFT (26)
>> +
>> +#define RG_HDMITX21_VREF_SEL BIT(4)
>> +#define RG_HDMITX21_VREF_SEL_SHIFT (4)
>> +
>> +#define RG_HDMITXPLL_BC GENMASK(28, 27)
>> +#define RG_HDMITXPLL_BC_SHIFT (27)
>> +#define RG_HDMITXPLL_BP GENMASK(13, 10)
>> +#define RG_HDMITXPLL_BP2 BIT(30)
>> +#define RG_HDMITXPLL_BP2_SHIFT (30)
>> +#define RG_HDMITXPLL_BP_SHIFT (10)
>> +#define RG_HDMITXPLL_BR GENMASK(21, 19)
>> +#define RG_HDMITXPLL_BR_SHIFT (19)
>> +#define RG_HDMITXPLL_DIV_CTRL GENMASK(25, 24)
>> +#define RG_HDMITXPLL_DIV_CTRL_SHIFT (24)
>> +#define RG_HDMITXPLL_FBKDIV_HIGH BIT(31)
>> +#define RG_HDMITXPLL_FBKDIV_high_SHIFT (31)
>> +#define RG_HDMITXPLL_FBKDIV_low (0xffffffff)
>> +#define RG_HDMITXPLL_FBKDIV_low_SHIFT (0)
>> +#define RG_HDMITXPLL_HIKVCO GENMASK(29, 29)
>> +#define RG_HDMITXPLL_HIKVCO_SHIFT (29)
>> +#define RG_HDMITXPLL_HREN GENMASK(13, 12)
>> +#define RG_HDMITXPLL_HREN_SHIFT (12)
>> +#define RG_HDMITXPLL_IBAND_FIX_EN GENMASK(24, 24)
>> +#define RG_HDMITXPLL_IBAND_FIX_EN_SHIFT (24)
>> +#define RG_HDMITXPLL_IC GENMASK(26, 22)
>> +#define RG_HDMITXPLL_IC_SHIFT (22)
>> +#define RG_HDMITXPLL_IR GENMASK(18, 14)
>> +#define RG_HDMITXPLL_IR_SHIFT (14)
>> +#define RG_HDMITXPLL_LVR_SEL GENMASK(27, 26)
>> +#define RG_HDMITXPLL_LVR_SEL_SHIFT (26)
>> +#define RG_HDMITXPLL_POSDIV GENMASK(23, 22)
>> +#define RG_HDMITXPLL_POSDIV_DIV3_CTRL BIT(21)
>> +#define RG_HDMITXPLL_POSDIV_DIV3_CTRL_SHIFT (21)
>> +#define RG_HDMITXPLL_POSDIV_SHIFT (22)
>> +#define RG_HDMITXPLL_PREDIV GENMASK(29, 28)
>> +#define RG_HDMITXPLL_PREDIV_SHIFT (28)
>> +#define RG_HDMITXPLL_PWD BIT(31)
>> +#define RG_HDMITXPLL_PWD_SHIFT (31)
>> +#define RG_HDMITXPLL_REF_CK_SEL GENMASK(2, 1)
>> +#define RG_HDMITXPLL_REF_CK_SEL_SHIFT (1)
>> +#define RG_HDMITXPLL_RESERVE GENMASK(15, 0)
>> +#define RG_HDMITXPLL_RESERVE_BIT12_11 GENMASK(12, 11)
>> +#define RG_HDMITXPLL_RESERVE_BIT12_11_SHIFT (11)
>> +#define RG_HDMITXPLL_RESERVE_BIT13 BIT(13)
>> +#define RG_HDMITXPLL_RESERVE_BIT13_SHIFT (13)
>> +#define RG_HDMITXPLL_RESERVE_BIT14 BIT(14)
>> +#define RG_HDMITXPLL_RESERVE_BIT14_SHIFT (14)
>> +#define RG_HDMITXPLL_RESERVE_BIT1_0 GENMASK(1, 0)
>> +#define RG_HDMITXPLL_RESERVE_BIT1_0_SHIFT (0)
>> +#define RG_HDMITXPLL_RESERVE_BIT3_2 GENMASK(3, 2)
>> +#define RG_HDMITXPLL_RESERVE_BIT3_2_SHIFT (2)
>> +#define RG_HDMITXPLL_RESERVE_SHIFT (0)
>> +#define RG_HDMITXPLL_TCL_EN BIT(31)
>> +#define RG_HDMITXPLL_TCL_EN_SHIFT (31)
>> +
>> +#define RG_INTR_IMP_RG_MODE GENMASK(7, 3)
>> +#define RG_INTR_IMP_RG_MODE_SHIFT (3)
>> +
>> +#endif /* MTK_HDMI_PHY_8195_H */
>> diff --git a/drivers/phy/mediatek/phy-mtk-hdmi.c
>> b/drivers/phy/mediatek/phy-mtk-hdmi.c
>> index af46472237e0..3fb60ab53668 100644
>> --- a/drivers/phy/mediatek/phy-mtk-hdmi.c
>> +++ b/drivers/phy/mediatek/phy-mtk-hdmi.c
>> @@ -194,6 +194,9 @@ static const struct of_device_id
>> mtk_hdmi_phy_match[] = {
>> { .compatible = "mediatek,mt8173-hdmi-phy",
>> .data = &mtk_hdmi_phy_8173_conf,
>> },
>> + { .compatible = "mediatek,mt8195-hdmi-phy",
>> + .data = &mtk_hdmi_phy_8195_conf,
>> + },
>> {},
>> };
>> MODULE_DEVICE_TABLE(of, mtk_hdmi_phy_match);
>> diff --git a/drivers/phy/mediatek/phy-mtk-hdmi.h
>> b/drivers/phy/mediatek/phy-mtk-hdmi.h
>> index 05de93f63a61..9d6399be71e9 100644
>> --- a/drivers/phy/mediatek/phy-mtk-hdmi.h
>> +++ b/drivers/phy/mediatek/phy-mtk-hdmi.h
>> @@ -51,6 +51,7 @@ void mtk_hdmi_phy_mask(struct mtk_hdmi_phy
>> *hdmi_phy, u32 offset,
>> u32 val, u32 mask);
>> struct mtk_hdmi_phy *to_mtk_hdmi_phy(struct clk_hw *hw);
>>
>> +extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_8195_conf;
>> extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_8173_conf;
>> extern struct mtk_hdmi_phy_conf mtk_hdmi_phy_2701_conf;
>>
>>
>

2022-09-27 14:07:28

[permalink] [raw]

Subject: Re: [PATCH v1 07/17] drm/mediatek: extract common functions from the mtk hdmi driver

On Tue, 20 Sep 2022 12:25, AngeloGioacchino Del Regno
<[email protected]> wrote:
>Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
>> Create a common "framework" that can be used to add support for
>> different hdmi IPs within the mediatek range of products.
>>
>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>
>> diff --git a/drivers/gpu/drm/mediatek/Makefile b/drivers/gpu/drm/mediatek/Makefile
>> index d4d193f60271..008ec69da67b 100644
>> --- a/drivers/gpu/drm/mediatek/Makefile
>> +++ b/drivers/gpu/drm/mediatek/Makefile
>> @@ -22,7 +22,8 @@ obj-$(CONFIG_DRM_MEDIATEK) += mediatek-drm.o
>>
>> mediatek-drm-hdmi-objs := mtk_cec.o \
>> mtk_hdmi.o \
>
>abcd ... mtk_hdmi_common.o goes here :-)
>
>> - mtk_hdmi_ddc.o
>> + mtk_hdmi_ddc.o \
>> + mtk_hdmi_common.o \
>>
>> obj-$(CONFIG_DRM_MEDIATEK_HDMI) += mediatek-drm-hdmi.o
>>
>> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
>> index 5cd05d4fe1a9..837d36ec4d64 100644
>> --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
>> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
>> @@ -32,187 +32,18 @@
>> #include <drm/drm_probe_helper.h>
>>
>> #include "mtk_cec.h"
>> -#include "mtk_hdmi.h"
>> #include "mtk_hdmi_regs.h"
>> +#include "mtk_hdmi_common.h"
>>
>> #define NCTS_BYTES 7
>>
>> -enum mtk_hdmi_clk_id {
>> - MTK_HDMI_CLK_HDMI_PIXEL,
>> - MTK_HDMI_CLK_HDMI_PLL,
>> - MTK_HDMI_CLK_AUD_BCLK,
>> - MTK_HDMI_CLK_AUD_SPDIF,
>> - MTK_HDMI_CLK_COUNT
>> +const char * const mtk_hdmi_clk_names_mt8183[MTK_MT8183_HDMI_CLK_COUNT] = {
>
>Why MT8183? This can be either MT8167 or MT2701... or, IMO more appropriately, you
>should name the IP version.
>Example: MTK_HDMIV123_CLK_COUNT (I don't know what IP version would that be!).

You're right, the naming isn't great.
I'll ask mediatek if they have a good name that would regroup the "legacy"
HDMI IP and the new IP in mt8195.

Thx,
Guillaume.

>
>> + [MTK_MT8183_HDMI_CLK_HDMI_PIXEL] = "pixel",
>> + [MTK_MT8183_HDMI_CLK_HDMI_PLL] = "pll",
>> + [MTK_MT8183_HDMI_CLK_AUD_BCLK] = "bclk",
>> + [MTK_MT8183_HDMI_CLK_AUD_SPDIF] = "spdif",
>> };
>>
>
>Regards,
>Angelo
>
>

2022-09-27 14:11:38

[permalink] [raw]

Subject: Re: [PATCH v1 16/17] drm/mediatek: dpi: Add mt8195 hdmi to DPI driver

On Thu, 22 Sep 2022 09:22, Krzysztof Kozlowski
<[email protected]> wrote:
>On 19/09/2022 18:56, Guillaume Ranquet wrote:
>> Add the DPI1 hdmi path support in mtk dpi driver
>>
>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>
>> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
>> index 630a4e301ef6..91212b7610e8 100644
>> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
>> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
>> @@ -15,7 +15,10 @@
>> #include <linux/of_graph.h>
>> #include <linux/pinctrl/consumer.h>
>> #include <linux/platform_device.h>
>> +#include <linux/reset.h>
>> #include <linux/types.h>
>> +#include <linux/regmap.h>
>> +#include <linux/mfd/syscon.h>
>
>Why do you need these headers in this patch?
>
>Best regards,
>Krzysztof
>

reset is used for reset_control but regmap and syscon are not used.
Those are leftover from a previous iteration of the patch, will drop
these in V2.

Thx,
Guillaume.

2022-09-27 14:12:20

[permalink] [raw]

Subject: Re: [PATCH v1 05/17] drm/mediatek: hdmi: use a syscon/regmap instead of iomem

On Tue, 20 Sep 2022 12:18, AngeloGioacchino Del Regno
<[email protected]> wrote:
>Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
>> To prepare support for newer chips that need to share their address
>> range with a dedicated ddc driver, move to a syscon.
>>
>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>
>> diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c
>> index 3196189429bc..5cd05d4fe1a9 100644
>> --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c
>> +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c
>
>..snip..
>
>> @@ -1428,7 +1413,6 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
>> struct device_node *cec_np, *remote, *i2c_np;
>> struct platform_device *cec_pdev;
>> struct regmap *regmap;
>> - struct resource *mem;
>> int ret;
>>
>> ret = mtk_hdmi_get_all_clk(hdmi, np);
>> @@ -1474,8 +1458,7 @@ static int mtk_hdmi_dt_parse_pdata(struct mtk_hdmi *hdmi,
>> }
>> hdmi->sys_regmap = regmap;
>>
>> - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
>> - hdmi->regs = devm_ioremap_resource(dev, mem);
>> + hdmi->regs = syscon_node_to_regmap(dev->of_node);
>
>Nack. You're breaking ABI, this will force everyone to add syscon to devicetree,
>hence this breaks retrocompatibility with old devicetrees.
>
>Hint: not here, device_node_to_regmap()

Hi Angelo,

I'm sorry, I didn't think device tree retro compatibility was a thing.

I'll drop the requirement for the module to be a syscon.
Thx for the hint.

Thx,
Guillaume.

>
>Regards,
>Angelo
>
>> if (IS_ERR(hdmi->regs)) {
>> ret = PTR_ERR(hdmi->regs);
>> goto put_device;
>
>

2022-09-27 14:19:17

[permalink] [raw]

Subject: Re: [PATCH v1 12/17] drm/mediatek: hdmi: mt8195: add audio support

On Tue, 20 Sep 2022 13:11, AngeloGioacchino Del Regno
<[email protected]> wrote:
>Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
>> Add HDMI audio support for mt8195
>>
>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>
>> diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> index 39e07a6dd490..bb7593ea4c86 100644
>> --- a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> @@ -215,6 +215,26 @@ static void mtk_hdmi_hw_vid_black(struct mtk_hdmi *hdmi, bool black)
>> mtk_hdmi_mask(hdmi, TOP_VMUTE_CFG1, 0, REG_VMUTE_EN);
>> }
>>
>> +static void mtk_hdmi_hw_aud_mute(struct mtk_hdmi *hdmi)
>> +{
>> + u32 val;
>> +
>> + val = mtk_hdmi_read(hdmi, AIP_CTRL, &val);
>> +
>
>val_tx = AUD_MUTE_FIFO_EN;
>if (val & DSD_EN)
> val_tx |= DSD_MUTE_DATA;
>
>regmap_set_bits(regmap, AIP_TXCTRL, val_tx);
>
>Easier, shorter.

Thx for the tip.

>
>> + if (val & DSD_EN)
>> + mtk_hdmi_mask(hdmi, AIP_TXCTRL,
>> + DSD_MUTE_DATA | AUD_MUTE_FIFO_EN,
>> + DSD_MUTE_DATA | AUD_MUTE_FIFO_EN);
>> + else
>> + mtk_hdmi_mask(hdmi, AIP_TXCTRL, AUD_MUTE_FIFO_EN,
>> + AUD_MUTE_FIFO_EN);
>> +}
>
>Regards,
>Angelo
>

2022-09-27 14:21:18

[permalink] [raw]

Subject: Re: [PATCH v1 06/17] dt-bindings: mediatek: set the hdmi to be compatible with syscon

On Thu, 22 Sep 2022 09:19, Krzysztof Kozlowski
<[email protected]> wrote:
>On 19/09/2022 18:56, Guillaume Ranquet wrote:
>> In order to share register with a dedicated ddc driver, set the hdmi
>> compatible to syscon.
>>
>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>
>> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
>> index abb231a0694b..86297b7eb7f7 100644
>> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
>> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,hdmi.yaml
>> @@ -16,12 +16,14 @@ description: |
>>
>> properties:
>> compatible:
>> - enum:
>> - - mediatek,mt2701-hdmi
>> - - mediatek,mt7623-hdmi
>> - - mediatek,mt8167-hdmi
>> - - mediatek,mt8173-hdmi
>> - - mediatek,mt8195-hdmi
>> + items:
>> + - enum:
>> + - mediatek,mt2701-hdmi
>> + - mediatek,mt7623-hdmi
>> + - mediatek,mt8167-hdmi
>> + - mediatek,mt8173-hdmi
>> + - const: syscon
>
>So you just broke all DTS and I do not see patches fixing them...
>
>Best regards,
>Krzysztof
>

I'll drop this patch for V2, as suggested by Angelo I'll do things differently
in the driver to drop this requirement.

Thx,
Guillaume.

2022-09-27 15:20:47

[permalink] [raw]

Subject: Re: [PATCH v1 17/17] drm/mediatek: Add mt8195-dpi support to drm_drv

On 27/09/2022 15:04, Guillaume Ranquet wrote:
> On Thu, 22 Sep 2022 09:20, Krzysztof Kozlowski
> <[email protected]> wrote:
>> On 19/09/2022 18:56, Guillaume Ranquet wrote:
>>> Add dpi support to enable the HDMI path.
>>>
>>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>>
>>> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>>> index 72049a530ae1..27f029ca760b 100644
>>> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>>> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>>> @@ -820,6 +820,8 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
>>> .data = (void *)MTK_DPI },
>>> { .compatible = "mediatek,mt8192-dpi",
>>> .data = (void *)MTK_DPI },
>>> + { .compatible = "mediatek,mt8195-dpi",
>>> + .data = (void *)MTK_DPI },
>>
>> It's compatible with the others. You don't need more compatibles.
>
> Hi Krzysztof,
>
> It's a bit confusing, because this compatible is used in both
> mtk_drm_drv.c and in mtk_dpi.c
>
> Albeit it's entirely the same thing regarding the mtk_drm_drv module,
> it's pretty different
> regarding the mtk_dpi module.

Sure, but this does not explain why do you need these entries here in
mtk_drm_drv.

Best regards,
Krzysztof

2022-09-28 03:08:02

by Chunfeng Yun

[permalink] [raw]

Subject: Re: [PATCH v1 14/17] phy: mediatek: add support for phy-mtk-hdmi-mt8195

On Tue, 2022-09-27 at 06:23 -0700, Guillaume Ranquet wrote:
> On Tue, 20 Sep 2022 09:46, Chunfeng Yun <[email protected]>
> wrote:
> > On Mon, 2022-09-19 at 18:56 +0200, Guillaume Ranquet wrote:
> > > Add basic support for the mediatek hdmi phy on MT8195 SoC
> > >
> > > Signed-off-by: Guillaume Ranquet <[email protected]>
> > >
> > > diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> > > b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> > > index bb7593ea4c86..0157acdce56c 100644
> > > --- a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> > > +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
> > > @@ -1344,6 +1344,8 @@ static void mtk_hdmi_bridge_disable(struct
> > > drm_bridge *bridge,
> > > mtk_hdmi_disable_hdcp_encrypt(hdmi);
> > > usleep_range(50000, 50050);
> > >
> > > + phy_power_off(hdmi->phy);
> > > +
> > > hdmi->enabled = false;
> > > }
> > >
> > > diff --git a/drivers/phy/mediatek/Makefile
> > > b/drivers/phy/mediatek/Makefile
> > > index fb1f8edaffa7..c9a50395533e 100644
> > > --- a/drivers/phy/mediatek/Makefile
> > > +++ b/drivers/phy/mediatek/Makefile
> > > @@ -12,6 +12,7 @@ obj-$(CONFIG_PHY_MTK_XSPHY) += phy-
> > > mtk-
> > > xsphy.o
> > > phy-mtk-hdmi-drv-y := phy-mtk-hdmi.o
> > > phy-mtk-hdmi-drv-y += phy-mtk-hdmi-
> > > mt2701.o
> > > phy-mtk-hdmi-drv-y += phy-mtk-hdmi-
> > > mt8173.o
> > > +phy-mtk-hdmi-drv-y += phy-mtk-hdmi-
> > > mt8195.o
> > > obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o
> > >
> > > phy-mtk-mipi-dsi-drv-y := phy-mtk-mipi-dsi.o
> > > diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
> > > b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
> > > new file mode 100644
> > > index 000000000000..149015b64c02
> > > --- /dev/null
> > > +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
> > > @@ -0,0 +1,673 @@
> > > +// SPDX-License-Identifier: GPL-2.0
> > > +/*
> > > + * Copyright (c) 2021 MediaTek Inc.
> > > + * Copyright (c) 2021 BayLibre, SAS
> > > + */
> > > +#include <linux/delay.h>
> > > +#include <linux/io.h>
> > > +#include <linux/mfd/syscon.h>
> > > +#include <linux/module.h>
> > > +#include <linux/phy/phy.h>
> > > +#include <linux/platform_device.h>
> > > +#include <linux/types.h>
> > > +#include <linux/nvmem-consumer.h>
> > > +
> > > +#include "phy-mtk-hdmi.h"
> > > +#include "phy-mtk-hdmi-mt8195.h"
> > > +
> > > +static void mtk_hdmi_ana_fifo_en(struct mtk_hdmi_phy *hdmi_phy)
> > > +{
> > > + /* make data fifo writable for hdmi2.0 */
> > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_ANA_CTL,
> > > REG_ANA_HDMI20_FIFO_EN,
> > > + REG_ANA_HDMI20_FIFO_EN);
> > > +}
> > > +
> > > +static void
> > > +mtk_mt8195_phy_tmds_high_bit_clk_ratio(struct mtk_hdmi_phy
> > > *hdmi_phy,
> > > + bool enable)
> > > +{
> > > + mtk_hdmi_ana_fifo_en(hdmi_phy);
> > > +
> > > + /* HDMI 2.0 specification, 3.4Gbps <= TMDS Bit Rate <= 6G,
> > > + * clock bit ratio 1:40, under 3.4Gbps, clock bit ratio 1:10
> > > + */
> > > + if (enable)
> > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG,
> > > + 0x2 << REG_TXC_DIV_SHIFT,
> >
> > Use FIELD_PREP() macro, then no need define REG_TXC_DIV_SHIFT
> > anymore.
> >
>
> Didn't know about FIELD_* macros, will use them for V2.
>
> Thx for the suggestion.
Please use helpers defined in phy-mtk-io.h, the register access helpers
of mtk_hdmi_phy_* are already removed in phy next branch.

Thanks a lot

2022-09-28 12:48:37

[permalink] [raw]

Subject: Re: [PATCH v1 14/17] phy: mediatek: add support for phy-mtk-hdmi-mt8195

On Wed, 28 Sep 2022 04:40, Chunfeng Yun <[email protected]> wrote:
>On Tue, 2022-09-27 at 06:23 -0700, Guillaume Ranquet wrote:
>> On Tue, 20 Sep 2022 09:46, Chunfeng Yun <[email protected]>
>> wrote:
>> > On Mon, 2022-09-19 at 18:56 +0200, Guillaume Ranquet wrote:
>> > > Add basic support for the mediatek hdmi phy on MT8195 SoC
>> > >
>> > > Signed-off-by: Guillaume Ranquet <[email protected]>
>> > >
>> > > diff --git a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> > > b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> > > index bb7593ea4c86..0157acdce56c 100644
>> > > --- a/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> > > +++ b/drivers/gpu/drm/mediatek/mtk_mt8195_hdmi.c
>> > > @@ -1344,6 +1344,8 @@ static void mtk_hdmi_bridge_disable(struct
>> > > drm_bridge *bridge,
>> > > mtk_hdmi_disable_hdcp_encrypt(hdmi);
>> > > usleep_range(50000, 50050);
>> > >
>> > > + phy_power_off(hdmi->phy);
>> > > +
>> > > hdmi->enabled = false;
>> > > }
>> > >
>> > > diff --git a/drivers/phy/mediatek/Makefile
>> > > b/drivers/phy/mediatek/Makefile
>> > > index fb1f8edaffa7..c9a50395533e 100644
>> > > --- a/drivers/phy/mediatek/Makefile
>> > > +++ b/drivers/phy/mediatek/Makefile
>> > > @@ -12,6 +12,7 @@ obj-$(CONFIG_PHY_MTK_XSPHY) += phy-
>> > > mtk-
>> > > xsphy.o
>> > > phy-mtk-hdmi-drv-y := phy-mtk-hdmi.o
>> > > phy-mtk-hdmi-drv-y += phy-mtk-hdmi-
>> > > mt2701.o
>> > > phy-mtk-hdmi-drv-y += phy-mtk-hdmi-
>> > > mt8173.o
>> > > +phy-mtk-hdmi-drv-y += phy-mtk-hdmi-
>> > > mt8195.o
>> > > obj-$(CONFIG_PHY_MTK_HDMI) += phy-mtk-hdmi-drv.o
>> > >
>> > > phy-mtk-mipi-dsi-drv-y := phy-mtk-mipi-dsi.o
>> > > diff --git a/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
>> > > b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
>> > > new file mode 100644
>> > > index 000000000000..149015b64c02
>> > > --- /dev/null
>> > > +++ b/drivers/phy/mediatek/phy-mtk-hdmi-mt8195.c
>> > > @@ -0,0 +1,673 @@
>> > > +// SPDX-License-Identifier: GPL-2.0
>> > > +/*
>> > > + * Copyright (c) 2021 MediaTek Inc.
>> > > + * Copyright (c) 2021 BayLibre, SAS
>> > > + */
>> > > +#include <linux/delay.h>
>> > > +#include <linux/io.h>
>> > > +#include <linux/mfd/syscon.h>
>> > > +#include <linux/module.h>
>> > > +#include <linux/phy/phy.h>
>> > > +#include <linux/platform_device.h>
>> > > +#include <linux/types.h>
>> > > +#include <linux/nvmem-consumer.h>
>> > > +
>> > > +#include "phy-mtk-hdmi.h"
>> > > +#include "phy-mtk-hdmi-mt8195.h"
>> > > +
>> > > +static void mtk_hdmi_ana_fifo_en(struct mtk_hdmi_phy *hdmi_phy)
>> > > +{
>> > > + /* make data fifo writable for hdmi2.0 */
>> > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI_ANA_CTL,
>> > > REG_ANA_HDMI20_FIFO_EN,
>> > > + REG_ANA_HDMI20_FIFO_EN);
>> > > +}
>> > > +
>> > > +static void
>> > > +mtk_mt8195_phy_tmds_high_bit_clk_ratio(struct mtk_hdmi_phy
>> > > *hdmi_phy,
>> > > + bool enable)
>> > > +{
>> > > + mtk_hdmi_ana_fifo_en(hdmi_phy);
>> > > +
>> > > + /* HDMI 2.0 specification, 3.4Gbps <= TMDS Bit Rate <= 6G,
>> > > + * clock bit ratio 1:40, under 3.4Gbps, clock bit ratio 1:10
>> > > + */
>> > > + if (enable)
>> > > + mtk_hdmi_phy_mask(hdmi_phy, HDMI20_CLK_CFG,
>> > > + 0x2 << REG_TXC_DIV_SHIFT,
>> >
>> > Use FIELD_PREP() macro, then no need define REG_TXC_DIV_SHIFT
>> > anymore.
>> >
>>
>> Didn't know about FIELD_* macros, will use them for V2.
>>
>> Thx for the suggestion.
>Please use helpers defined in phy-mtk-io.h, the register access helpers
>of mtk_hdmi_phy_* are already removed in phy next branch.
>
>Thanks a lot
>
>
Hi,

Thank you for the headsup, I've seen the change landed in
next-20220927 on which I'm currently rebasing.

Thx,
Guillaume.

2022-09-28 14:46:04

[permalink] [raw]

Subject: Re: [PATCH v1 16/17] drm/mediatek: dpi: Add mt8195 hdmi to DPI driver

Il 27/09/22 15:34, Guillaume Ranquet ha scritto:
> On Tue, 20 Sep 2022 14:22, AngeloGioacchino Del Regno
> <[email protected]> wrote:
>> Il 19/09/22 18:56, Guillaume Ranquet ha scritto:
>>> Add the DPI1 hdmi path support in mtk dpi driver
>>>
>>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>>
>>> diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c
>>> index 630a4e301ef6..91212b7610e8 100644
>>> --- a/drivers/gpu/drm/mediatek/mtk_dpi.c
>>> +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c
>>> @@ -15,7 +15,10 @@
>>> #include <linux/of_graph.h>
>>> #include <linux/pinctrl/consumer.h>
>>> #include <linux/platform_device.h>
>>> +#include <linux/reset.h>
>>> #include <linux/types.h>
>>> +#include <linux/regmap.h>
>>> +#include <linux/mfd/syscon.h>
>>>
>>> #include <video/videomode.h>
>>>
>>> @@ -66,10 +69,14 @@ struct mtk_dpi {
>>> struct drm_bridge *next_bridge;
>>> struct drm_connector *connector;
>>> void __iomem *regs;
>>> + struct reset_control *reset_ctl;
>>> struct device *dev;
>>> struct clk *engine_clk;
>>> + struct clk *dpi_ck_cg;
>>> struct clk *pixel_clk;
>>> + struct clk *dpi_sel_clk;
>>> struct clk *tvd_clk;
>>> + struct clk *hdmi_cg;
>>
>>
>> You're adding new clocks and then you're making *all clocks*, including the
>> already existing ones... optional.
>>
>> That looks seriously odd.... can you please give a devicetree example for
>> MT8195 in the next version, perhaps in the cover letter?
>>
>> Would also make it easier to test this entire big series.
>>
>> Regards,
>> Angelo
>>
>
> The clock names are different for MT8195 HDMI than for the legacy DP.
> Making everything optional might not have been a smart move.
> I'll try to think of something else to make it look less odd.
>
> The device tree I'm using to test things is rather "hackish" and has a bunch of
> changes from what is found on linux-next.
> I think Jason and Nancy are due to upstream those patches.
>
> I'll try to include something minimal for you to test.
> Otherwise would a public branch containing everything work for you?
>

Any reference would work for me, "something minimal" or a public branch, it
doesn't really matter.

Thanks!
Angelo

2022-10-03 15:36:24

[permalink] [raw]

Subject: Re: [PATCH v1 17/17] drm/mediatek: Add mt8195-dpi support to drm_drv

On Tue, 27 Sep 2022 16:28, Krzysztof Kozlowski
<[email protected]> wrote:
>On 27/09/2022 15:04, Guillaume Ranquet wrote:
>> On Thu, 22 Sep 2022 09:20, Krzysztof Kozlowski
>> <[email protected]> wrote:
>>> On 19/09/2022 18:56, Guillaume Ranquet wrote:
>>>> Add dpi support to enable the HDMI path.
>>>>
>>>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>>>
>>>> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>>>> index 72049a530ae1..27f029ca760b 100644
>>>> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>>>> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>>>> @@ -820,6 +820,8 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
>>>> .data = (void *)MTK_DPI },
>>>> { .compatible = "mediatek,mt8192-dpi",
>>>> .data = (void *)MTK_DPI },
>>>> + { .compatible = "mediatek,mt8195-dpi",
>>>> + .data = (void *)MTK_DPI },
>>>
>>> It's compatible with the others. You don't need more compatibles.
>>
>> Hi Krzysztof,
>>
>> It's a bit confusing, because this compatible is used in both
>> mtk_drm_drv.c and in mtk_dpi.c
>>
>> Albeit it's entirely the same thing regarding the mtk_drm_drv module,
>> it's pretty different
>> regarding the mtk_dpi module.
>
>Sure, but this does not explain why do you need these entries here in
>mtk_drm_drv.
>
>Best regards,
>Krzysztof
>

Hi Krzysztof,

Sorry for the late answer.
The mtk_drm_drv is the component master of the full mediatek drm stack.

it "binds" all of the crtc/dpi/ovl/mutex/merge... components of the stack.

That mtk_ddp_comp_dt_ids array is iterated over to find all of the components
from the device tree.

Hope this clarifies things?

Thx,
Guillaume.

2022-10-04 10:52:12

[permalink] [raw]

Subject: Re: [PATCH v1 17/17] drm/mediatek: Add mt8195-dpi support to drm_drv

On 03/10/2022 17:29, Guillaume Ranquet wrote:
> On Tue, 27 Sep 2022 16:28, Krzysztof Kozlowski
> <[email protected]> wrote:
>> On 27/09/2022 15:04, Guillaume Ranquet wrote:
>>> On Thu, 22 Sep 2022 09:20, Krzysztof Kozlowski
>>> <[email protected]> wrote:
>>>> On 19/09/2022 18:56, Guillaume Ranquet wrote:
>>>>> Add dpi support to enable the HDMI path.
>>>>>
>>>>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>>>>
>>>>> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>>>>> index 72049a530ae1..27f029ca760b 100644
>>>>> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>>>>> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>>>>> @@ -820,6 +820,8 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
>>>>> .data = (void *)MTK_DPI },
>>>>> { .compatible = "mediatek,mt8192-dpi",
>>>>> .data = (void *)MTK_DPI },
>>>>> + { .compatible = "mediatek,mt8195-dpi",
>>>>> + .data = (void *)MTK_DPI },
>>>>
>>>> It's compatible with the others. You don't need more compatibles.
>>>
>>> Hi Krzysztof,
>>>
>>> It's a bit confusing, because this compatible is used in both
>>> mtk_drm_drv.c and in mtk_dpi.c
>>>
>>> Albeit it's entirely the same thing regarding the mtk_drm_drv module,
>>> it's pretty different
>>> regarding the mtk_dpi module.
>>
>> Sure, but this does not explain why do you need these entries here in
>> mtk_drm_drv.
>>
>> Best regards,
>> Krzysztof
>>
>
> Hi Krzysztof,
>
> Sorry for the late answer.
> The mtk_drm_drv is the component master of the full mediatek drm stack.
>
> it "binds" all of the crtc/dpi/ovl/mutex/merge... components of the stack.
>
> That mtk_ddp_comp_dt_ids array is iterated over to find all of the components
> from the device tree.

No. You said what the code is doing. I think I understand this. You
still do not need more compatibles. Your sentence did not clarify it
because it did not answer at all to question "why". Why do you need it?

Sorry, the change looks not correct.

Best regards,
Krzysztof

2022-10-04 12:13:15

[permalink] [raw]

Subject: Re: [PATCH v1 17/17] drm/mediatek: Add mt8195-dpi support to drm_drv

On Tue, 04 Oct 2022 12:49, Krzysztof Kozlowski
<[email protected]> wrote:
>On 03/10/2022 17:29, Guillaume Ranquet wrote:
>> On Tue, 27 Sep 2022 16:28, Krzysztof Kozlowski
>> <[email protected]> wrote:
>>> On 27/09/2022 15:04, Guillaume Ranquet wrote:
>>>> On Thu, 22 Sep 2022 09:20, Krzysztof Kozlowski
>>>> <[email protected]> wrote:
>>>>> On 19/09/2022 18:56, Guillaume Ranquet wrote:
>>>>>> Add dpi support to enable the HDMI path.
>>>>>>
>>>>>> Signed-off-by: Guillaume Ranquet <[email protected]>
>>>>>>
>>>>>> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>>>>>> index 72049a530ae1..27f029ca760b 100644
>>>>>> --- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>>>>>> +++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
>>>>>> @@ -820,6 +820,8 @@ static const struct of_device_id mtk_ddp_comp_dt_ids[] = {
>>>>>> .data = (void *)MTK_DPI },
>>>>>> { .compatible = "mediatek,mt8192-dpi",
>>>>>> .data = (void *)MTK_DPI },
>>>>>> + { .compatible = "mediatek,mt8195-dpi",
>>>>>> + .data = (void *)MTK_DPI },
>>>>>
>>>>> It's compatible with the others. You don't need more compatibles.
>>>>
>>>> Hi Krzysztof,
>>>>
>>>> It's a bit confusing, because this compatible is used in both
>>>> mtk_drm_drv.c and in mtk_dpi.c
>>>>
>>>> Albeit it's entirely the same thing regarding the mtk_drm_drv module,
>>>> it's pretty different
>>>> regarding the mtk_dpi module.
>>>
>>> Sure, but this does not explain why do you need these entries here in
>>> mtk_drm_drv.
>>>
>>> Best regards,
>>> Krzysztof
>>>
>>
>> Hi Krzysztof,
>>
>> Sorry for the late answer.
>> The mtk_drm_drv is the component master of the full mediatek drm stack.
>>
>> it "binds" all of the crtc/dpi/ovl/mutex/merge... components of the stack.
>>
>> That mtk_ddp_comp_dt_ids array is iterated over to find all of the components
>> from the device tree.
>
>No. You said what the code is doing. I think I understand this. You
>still do not need more compatibles. Your sentence did not clarify it
>because it did not answer at all to question "why". Why do you need it?
>
>Sorry, the change looks not correct.
>
>Best regards,
>Krzysztof
>

I need a new compatible to adress the specifics of mt8195 in the mtk_dpi driver,
the change is in this series with:
[PATCH v1 16/17] drm/mediatek: dpi: Add mt8195 hdmi to DPI driver [1]

I then need to add that compatible to the "list" here in mtk_drm_drv.
I don't see a way around this unless I rewrite the way mtk_drm_drv works?

Maybe if I declare a new compatible that is generic to all mediatek
dpi variants?
and have all the dts specify the node with both the generic dpi and
the specific compatible?

dpi@xxx {
compatible = "mediatek,dpi", "mediatek,mt8195-dpi";
...
}

Then I can "collapse" all the dpi related nodes in mtk_drm_drv under
"mediatek,dpi" ?

I guess would have to do the change for all other components that are needed in
mtk_drm_drv (mmsys, aal, ccor, color, dither, dsc, gamma, mutex...).

That's the only trivial way I can think of implementing this with the
current status
of the mtk_drm stack.

Do you have any other ideas in mind?

Thx,
Guillaume.

[1] : https://lore.kernel.org/all/[email protected]/

2022-10-04 15:20:35

[permalink] [raw]

Subject: Re: [PATCH v1 17/17] drm/mediatek: Add mt8195-dpi support to drm_drv

On 04/10/2022 13:55, Guillaume Ranquet wrote:
>> No. You said what the code is doing. I think I understand this. You
>> still do not need more compatibles. Your sentence did not clarify it
>> because it did not answer at all to question "why". Why do you need it?
>>
>> Sorry, the change looks not correct.
>>
>> Best regards,
>> Krzysztof
>>
>
> I need a new compatible to adress the specifics of mt8195 in the mtk_dpi driver,
> the change is in this series with:
> [PATCH v1 16/17] drm/mediatek: dpi: Add mt8195 hdmi to DPI driver [1]

But you do not have specifics of mt8195. I wrote it in the beginning.

>
> I then need to add that compatible to the "list" here in mtk_drm_drv.

No, you do not... I checked the driver and there is no single need... or
convince me you need.

> I don't see a way around this unless I rewrite the way mtk_drm_drv works?

Why rewrite? You have all compatibles in place.

>
> Maybe if I declare a new compatible that is generic to all mediatek
> dpi variants?

You were asked to use fallback. Don't create some fake fallbacks. Use
existing ones.

> and have all the dts specify the node with both the generic dpi and
> the specific compatible?
>
> dpi@xxx {
> compatible = "mediatek,dpi", "mediatek,mt8195-dpi";

I don't know what's this but certainly looks odd. Some wild-card
compatible in front (not fallback) and none are documented.

> ...
> }
>
> Then I can "collapse" all the dpi related nodes in mtk_drm_drv under
> "mediatek,dpi" ?
>
> I guess would have to do the change for all other components that are needed in
> mtk_drm_drv (mmsys, aal, ccor, color, dither, dsc, gamma, mutex...).
>
> That's the only trivial way I can think of implementing this with the
> current status
> of the mtk_drm stack.
>
> Do you have any other ideas in mind?

Use fallback of compatible device. That's the common pattern.
Everywhere, Mediatek as well.

Best regards,
Krzysztof

2022-10-05 09:48:15

[permalink] [raw]

Subject: Re: [PATCH v1 17/17] drm/mediatek: Add mt8195-dpi support to drm_drv

On Tue, 04 Oct 2022 17:05, Krzysztof Kozlowski
<[email protected]> wrote:
>On 04/10/2022 13:55, Guillaume Ranquet wrote:
>>> No. You said what the code is doing. I think I understand this. You
>>> still do not need more compatibles. Your sentence did not clarify it
>>> because it did not answer at all to question "why". Why do you need it?
>>>
>>> Sorry, the change looks not correct.
>>>
>>> Best regards,
>>> Krzysztof
>>>
>>
>> I need a new compatible to adress the specifics of mt8195 in the mtk_dpi driver,
>> the change is in this series with:
>> [PATCH v1 16/17] drm/mediatek: dpi: Add mt8195 hdmi to DPI driver [1]
>
>But you do not have specifics of mt8195. I wrote it in the beginning.
>
>>
>> I then need to add that compatible to the "list" here in mtk_drm_drv.
>
>No, you do not... I checked the driver and there is no single need... or
>convince me you need.
>
>> I don't see a way around this unless I rewrite the way mtk_drm_drv works?
>
>Why rewrite? You have all compatibles in place.
>
>>
>> Maybe if I declare a new compatible that is generic to all mediatek
>> dpi variants?
>
>You were asked to use fallback. Don't create some fake fallbacks. Use
>existing ones.
>
>> and have all the dts specify the node with both the generic dpi and
>> the specific compatible?
>>
>> dpi@xxx {
>> compatible = "mediatek,dpi", "mediatek,mt8195-dpi";
>
>I don't know what's this but certainly looks odd. Some wild-card
>compatible in front (not fallback) and none are documented.
>
>> ...
>> }
>>
>> Then I can "collapse" all the dpi related nodes in mtk_drm_drv under
>> "mediatek,dpi" ?
>>
>> I guess would have to do the change for all other components that are needed in
>> mtk_drm_drv (mmsys, aal, ccor, color, dither, dsc, gamma, mutex...).
>>
>> That's the only trivial way I can think of implementing this with the
>> current status
>> of the mtk_drm stack.
>>
>> Do you have any other ideas in mind?
>
>Use fallback of compatible device. That's the common pattern.
>Everywhere, Mediatek as well.
>

I'm unsure about what a "fallback of compatible device" is.
But from what I can gather, you'd have me write the dts as:

dpi@xxx {
compatible = "mediatek,mt8195-dpi", "mediatek,mt2701-dpi";
...
}

so that the mtk_dpi driver will use the specific mt8195 dpi config and
the mtk_drm driver will fallback to mt2701 to find the compatible it needs.

Would you like me to use this pattern for all the other compatibles declared
in the mtk_ddp_comp_ids array in separate patches?

Thx,
Guillaume.

>Best regards,
>Krzysztof
>

2022-10-05 15:47:23

[permalink] [raw]

Subject: Re: [PATCH v1 17/17] drm/mediatek: Add mt8195-dpi support to drm_drv

On 05/10/2022 11:34, Guillaume Ranquet wrote:
> On Tue, 04 Oct 2022 17:05, Krzysztof Kozlowski
> <[email protected]> wrote:
>> On 04/10/2022 13:55, Guillaume Ranquet wrote:
>>>> No. You said what the code is doing. I think I understand this. You
>>>> still do not need more compatibles. Your sentence did not clarify it
>>>> because it did not answer at all to question "why". Why do you need it?
>>>>
>>>> Sorry, the change looks not correct.
>>>>
>>>> Best regards,
>>>> Krzysztof
>>>>
>>>
>>> I need a new compatible to adress the specifics of mt8195 in the mtk_dpi driver,
>>> the change is in this series with:
>>> [PATCH v1 16/17] drm/mediatek: dpi: Add mt8195 hdmi to DPI driver [1]
>>
>> But you do not have specifics of mt8195. I wrote it in the beginning.
>>
>>>
>>> I then need to add that compatible to the "list" here in mtk_drm_drv.
>>
>> No, you do not... I checked the driver and there is no single need... or
>> convince me you need.
>>
>>> I don't see a way around this unless I rewrite the way mtk_drm_drv works?
>>
>> Why rewrite? You have all compatibles in place.
>>
>>>
>>> Maybe if I declare a new compatible that is generic to all mediatek
>>> dpi variants?
>>
>> You were asked to use fallback. Don't create some fake fallbacks. Use
>> existing ones.
>>
>>> and have all the dts specify the node with both the generic dpi and
>>> the specific compatible?
>>>
>>> dpi@xxx {
>>> compatible = "mediatek,dpi", "mediatek,mt8195-dpi";
>>
>> I don't know what's this but certainly looks odd. Some wild-card
>> compatible in front (not fallback) and none are documented.
>>
>>> ...
>>> }
>>>
>>> Then I can "collapse" all the dpi related nodes in mtk_drm_drv under
>>> "mediatek,dpi" ?
>>>
>>> I guess would have to do the change for all other components that are needed in
>>> mtk_drm_drv (mmsys, aal, ccor, color, dither, dsc, gamma, mutex...).
>>>
>>> That's the only trivial way I can think of implementing this with the
>>> current status
>>> of the mtk_drm stack.
>>>
>>> Do you have any other ideas in mind?
>>
>> Use fallback of compatible device. That's the common pattern.
>> Everywhere, Mediatek as well.
>>
>
> I'm unsure about what a "fallback of compatible device" is.
> But from what I can gather, you'd have me write the dts as:
>
> dpi@xxx {
> compatible = "mediatek,mt8195-dpi", "mediatek,mt2701-dpi";
> ...
> }

Sounds reasonable. Just someone should check whether devices are
actually compatible, because driver is just a hint.

>
> so that the mtk_dpi driver will use the specific mt8195 dpi config and
> the mtk_drm driver will fallback to mt2701 to find the compatible it needs.
>
> Would you like me to use this pattern for all the other compatibles declared
> in the mtk_ddp_comp_ids array in separate patches?

Could be for consistency, but it is up to you.

Best regards,
Krzysztof

2022-10-14 14:31:14