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From: Sebastian Reichel <sebastian.reichel@collabora.com>
To: Heiko Stuebner <heiko@sntech.de>,
	Vinod Koul <vkoul@kernel.org>,
	Kishon Vijay Abraham I <kishon@kernel.org>,
	linux-rockchip@lists.infradead.org,
	linux-phy@lists.infradead.org
Cc: Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Frank Wang <frank.wang@rock-chips.com>,
	Kever Yang <kever.yang@rock-chips.com>,
	devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org,
	Sebastian Reichel <sebastian.reichel@collabora.com>,
	kernel@collabora.com,
	Zhang Yubing <yubing.zhang@rock-chips.com>
Subject: [PATCH v1 04/10] phy: rockchip: add usbdp combo phy driver
Date: Fri,  9 Feb 2024 19:17:20 +0100
Message-ID: <20240209181831.104687-5-sebastian.reichel@collabora.com>
In-Reply-To: <20240209181831.104687-1-sebastian.reichel@collabora.com>
References: <20240209181831.104687-1-sebastian.reichel@collabora.com>
Precedence: bulk
MIME-Version: 1.0
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This adds a new USBDP combo PHY with Samsung IP block driver.

The driver get lane mux and mapping info in 2 ways, supporting
DisplayPort alternate mode or parsing from DT. When parsing from DT,
the property "rockchip,dp-lane-mux" provide the DP mux and mapping
info. This is needed when the PHY is not used with TypeC Alt-Mode.
For example if the USB3 interface of the PHY is connected to a USB
Type A connector and the DP interface is connected to a DisplayPort
connector.

When do DP link training, need to set lane number, link rate, swing,
and pre-emphasis via PHY configure interface.

Co-developed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Co-developed-by: Zhang Yubing <yubing.zhang@rock-chips.com>
Signed-off-by: Zhang Yubing <yubing.zhang@rock-chips.com>
Co-developed-by: Frank Wang <frank.wang@rock-chips.com>
Signed-off-by: Frank Wang <frank.wang@rock-chips.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
---
 drivers/phy/rockchip/Kconfig              |   12 +
 drivers/phy/rockchip/Makefile             |    1 +
 drivers/phy/rockchip/phy-rockchip-usbdp.c | 1641 +++++++++++++++++++++
 3 files changed, 1654 insertions(+)
 create mode 100644 drivers/phy/rockchip/phy-rockchip-usbdp.c

diff --git a/drivers/phy/rockchip/Kconfig b/drivers/phy/rockchip/Kconfig
index 94360fc96a6f..d21b458c1d18 100644
--- a/drivers/phy/rockchip/Kconfig
+++ b/drivers/phy/rockchip/Kconfig
@@ -107,3 +107,15 @@ config PHY_ROCKCHIP_USB
 	select GENERIC_PHY
 	help
 	  Enable this to support the Rockchip USB 2.0 PHY.
+
+config PHY_ROCKCHIP_USBDP
+	tristate "Rockchip USBDP COMBO PHY Driver"
+	depends on ARCH_ROCKCHIP && OF
+	select GENERIC_PHY
+	select TYPEC
+	help
+	  Enable this to support the Rockchip USB3.0/DP combo PHY with
+	  Samsung IP block. This is required for USB3 support on RK3588.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called phy-rockchip-usbdp
diff --git a/drivers/phy/rockchip/Makefile b/drivers/phy/rockchip/Makefile
index 7eab129230d1..25d2e1355db7 100644
--- a/drivers/phy/rockchip/Makefile
+++ b/drivers/phy/rockchip/Makefile
@@ -11,3 +11,4 @@ obj-$(CONFIG_PHY_ROCKCHIP_PCIE)		+= phy-rockchip-pcie.o
 obj-$(CONFIG_PHY_ROCKCHIP_SNPS_PCIE3)	+= phy-rockchip-snps-pcie3.o
 obj-$(CONFIG_PHY_ROCKCHIP_TYPEC)	+= phy-rockchip-typec.o
 obj-$(CONFIG_PHY_ROCKCHIP_USB)		+= phy-rockchip-usb.o
+obj-$(CONFIG_PHY_ROCKCHIP_USBDP)	+= phy-rockchip-usbdp.o
diff --git a/drivers/phy/rockchip/phy-rockchip-usbdp.c b/drivers/phy/rockchip/phy-rockchip-usbdp.c
new file mode 100644
index 000000000000..c7ed0fd10197
--- /dev/null
+++ b/drivers/phy/rockchip/phy-rockchip-usbdp.c
@@ -0,0 +1,1641 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Rockchip USBDP Combo PHY with Samsung IP block driver
+ *
+ * Copyright (C) 2021 Rockchip Electronics Co., Ltd
+ */
+
+#include <linux/bitfield.h>
+#include <linux/bits.h>
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+#include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/property.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/typec_dp.h>
+#include <linux/usb/typec_mux.h>
+
+/* USBDP PHY Register Definitions */
+#define UDPHY_PCS				0x4000
+#define UDPHY_PMA				0x8000
+
+/* VO0 GRF Registers */
+#define DP_SINK_HPD_CFG				BIT(11)
+#define DP_SINK_HPD_SEL				BIT(10)
+#define DP_AUX_DIN_SEL				BIT(9)
+#define DP_AUX_DOUT_SEL				BIT(8)
+#define DP_LANE_SEL_N(n)			GENMASK(2 * (n) + 1, 2 * (n))
+#define DP_LANE_SEL_ALL				GENMASK(7, 0)
+
+/* PMA CMN Registers */
+#define CMN_LANE_MUX_AND_EN_OFFSET		0x0288	/* cmn_reg00A2 */
+#define CMN_DP_LANE_MUX_N(n)			BIT((n) + 4)
+#define CMN_DP_LANE_EN_N(n)			BIT(n)
+#define CMN_DP_LANE_MUX_ALL			GENMASK(7, 4)
+#define CMN_DP_LANE_EN_ALL			GENMASK(3, 0)
+
+#define CMN_DP_LINK_OFFSET			0x28c	/* cmn_reg00A3 */
+#define CMN_DP_TX_LINK_BW			GENMASK(6, 5)
+#define CMN_DP_TX_LANE_SWAP_EN			BIT(2)
+
+#define CMN_SSC_EN_OFFSET			0x2d0	/* cmn_reg00B4 */
+#define CMN_ROPLL_SSC_EN			BIT(1)
+#define CMN_LCPLL_SSC_EN			BIT(0)
+
+#define CMN_ANA_LCPLL_DONE_OFFSET		0x0350	/* cmn_reg00D4 */
+#define CMN_ANA_LCPLL_LOCK_DONE			BIT(7)
+#define CMN_ANA_LCPLL_AFC_DONE			BIT(6)
+
+#define CMN_ANA_ROPLL_DONE_OFFSET		0x0354	/* cmn_reg00D5 */
+#define CMN_ANA_ROPLL_LOCK_DONE			BIT(1)
+#define CMN_ANA_ROPLL_AFC_DONE			BIT(0)
+
+#define CMN_DP_RSTN_OFFSET			0x038c	/* cmn_reg00E3 */
+#define CMN_DP_INIT_RSTN			BIT(3)
+#define CMN_DP_CMN_RSTN				BIT(2)
+#define CMN_CDR_WTCHDG_EN			BIT(1)
+#define CMN_CDR_WTCHDG_MSK_CDR_EN		BIT(0)
+
+#define TRSV_ANA_TX_CLK_OFFSET_N(n)		(0x854 + (n) * 0x800)	/* trsv_reg0215 */
+#define LN_ANA_TX_SER_TXCLK_INV			BIT(1)
+
+#define TRSV_LN0_MON_RX_CDR_DONE_OFFSET		0x0b84	/* trsv_reg02E1 */
+#define TRSV_LN0_MON_RX_CDR_LOCK_DONE		BIT(0)
+
+#define TRSV_LN2_MON_RX_CDR_DONE_OFFSET		0x1b84	/* trsv_reg06E1 */
+#define TRSV_LN2_MON_RX_CDR_LOCK_DONE		BIT(0)
+
+#define BIT_WRITEABLE_SHIFT			16
+#define PHY_AUX_DP_DATA_POL_NORMAL		0
+#define PHY_AUX_DP_DATA_POL_INVERT		1
+#define PHY_LANE_MUX_USB			0
+#define PHY_LANE_MUX_DP				1
+
+enum {
+	DP_BW_RBR,
+	DP_BW_HBR,
+	DP_BW_HBR2,
+	DP_BW_HBR3,
+};
+
+enum {
+	UDPHY_MODE_NONE		= 0,
+	UDPHY_MODE_USB		= BIT(0),
+	UDPHY_MODE_DP		= BIT(1),
+	UDPHY_MODE_DP_USB	= BIT(1) | BIT(0),
+};
+
+struct udphy_grf_reg {
+	unsigned int	offset;
+	unsigned int	bitend;
+	unsigned int	bitstart;
+	unsigned int	disable;
+	unsigned int	enable;
+};
+
+struct udphy_grf_cfg {
+	/* u2phy-grf */
+	struct udphy_grf_reg	bvalid_phy_con;
+	struct udphy_grf_reg	bvalid_grf_con;
+
+	/* usb-grf */
+	struct udphy_grf_reg	usb3otg0_cfg;
+	struct udphy_grf_reg	usb3otg1_cfg;
+
+	/* usbdpphy-grf */
+	struct udphy_grf_reg	low_pwrn;
+	struct udphy_grf_reg	rx_lfps;
+};
+
+struct udphy_vogrf_cfg {
+	/* vo-grf */
+	struct udphy_grf_reg hpd_trigger;
+	u32 dp_lane_reg;
+};
+
+struct dp_tx_drv_ctrl {
+	u32 trsv_reg0204;
+	u32 trsv_reg0205;
+	u32 trsv_reg0206;
+	u32 trsv_reg0207;
+};
+
+struct rockchip_udphy;
+
+struct rockchip_udphy_cfg {
+	unsigned int num_phys;
+	unsigned int phy_ids[2];
+	/* resets to be requested */
+	const char * const *rst_list;
+	int num_rsts;
+
+	struct udphy_grf_cfg grfcfg;
+	struct udphy_vogrf_cfg vogrfcfg[2];
+	const struct dp_tx_drv_ctrl (*dp_tx_ctrl_cfg[4])[4];
+	const struct dp_tx_drv_ctrl (*dp_tx_ctrl_cfg_typec[4])[4];
+};
+
+struct rockchip_udphy {
+	struct device *dev;
+	struct regmap *pma_regmap;
+	struct regmap *u2phygrf;
+	struct regmap *udphygrf;
+	struct regmap *usbgrf;
+	struct regmap *vogrf;
+	struct typec_switch_dev *sw;
+	struct typec_mux_dev *mux;
+	struct mutex mutex; /* mutex to protect access to individual PHYs */
+
+	/* clocks and rests */
+	int num_clks;
+	struct clk_bulk_data *clks;
+	struct clk *refclk;
+	int num_rsts;
+	struct reset_control_bulk_data *rsts;
+
+	/* PHY status management */
+	bool flip;
+	bool mode_change;
+	u8 mode;
+	u8 status;
+
+	/* utilized for USB */
+	bool hs; /* flag for high-speed */
+
+	/* utilized for DP */
+	struct gpio_desc *sbu1_dc_gpio;
+	struct gpio_desc *sbu2_dc_gpio;
+	u32 lane_mux_sel[4];
+	u32 dp_lane_sel[4];
+	u32 dp_aux_dout_sel;
+	u32 dp_aux_din_sel;
+	bool dp_sink_hpd_sel;
+	bool dp_sink_hpd_cfg;
+	u8 bw;
+	int id;
+
+	bool dp_in_use;
+
+	/* PHY const config */
+	const struct rockchip_udphy_cfg *cfgs;
+};
+
+static const struct dp_tx_drv_ctrl rk3588_dp_tx_drv_ctrl_rbr_hbr[4][4] = {
+	/* voltage swing 0, pre-emphasis 0->3 */
+	{
+		{ 0x20, 0x10, 0x42, 0xe5 },
+		{ 0x26, 0x14, 0x42, 0xe5 },
+		{ 0x29, 0x18, 0x42, 0xe5 },
+		{ 0x2b, 0x1c, 0x43, 0xe7 },
+	},
+
+	/* voltage swing 1, pre-emphasis 0->2 */
+	{
+		{ 0x23, 0x10, 0x42, 0xe7 },
+		{ 0x2a, 0x17, 0x43, 0xe7 },
+		{ 0x2b, 0x1a, 0x43, 0xe7 },
+	},
+
+	/* voltage swing 2, pre-emphasis 0->1 */
+	{
+		{ 0x27, 0x10, 0x42, 0xe7 },
+		{ 0x2b, 0x17, 0x43, 0xe7 },
+	},
+
+	/* voltage swing 3, pre-emphasis 0 */
+	{
+		{ 0x29, 0x10, 0x43, 0xe7 },
+	},
+};
+
+static const struct dp_tx_drv_ctrl rk3588_dp_tx_drv_ctrl_rbr_hbr_typec[4][4] = {
+	/* voltage swing 0, pre-emphasis 0->3 */
+	{
+		{ 0x20, 0x10, 0x42, 0xe5 },
+		{ 0x26, 0x14, 0x42, 0xe5 },
+		{ 0x29, 0x18, 0x42, 0xe5 },
+		{ 0x2b, 0x1c, 0x43, 0xe7 },
+	},
+
+	/* voltage swing 1, pre-emphasis 0->2 */
+	{
+		{ 0x23, 0x10, 0x42, 0xe7 },
+		{ 0x2a, 0x17, 0x43, 0xe7 },
+		{ 0x2b, 0x1a, 0x43, 0xe7 },
+	},
+
+	/* voltage swing 2, pre-emphasis 0->1 */
+	{
+		{ 0x27, 0x10, 0x43, 0x67 },
+		{ 0x2b, 0x17, 0x43, 0xe7 },
+	},
+
+	/* voltage swing 3, pre-emphasis 0 */
+	{
+		{ 0x29, 0x10, 0x43, 0xe7 },
+	},
+};
+
+static const struct dp_tx_drv_ctrl rk3588_dp_tx_drv_ctrl_hbr2[4][4] = {
+	/* voltage swing 0, pre-emphasis 0->3 */
+	{
+		{ 0x21, 0x10, 0x42, 0xe5 },
+		{ 0x26, 0x14, 0x42, 0xe5 },
+		{ 0x26, 0x16, 0x43, 0xe5 },
+		{ 0x2a, 0x19, 0x43, 0xe7 },
+	},
+
+	/* voltage swing 1, pre-emphasis 0->2 */
+	{
+		{ 0x24, 0x10, 0x42, 0xe7 },
+		{ 0x2a, 0x17, 0x43, 0xe7 },
+		{ 0x2b, 0x1a, 0x43, 0xe7 },
+	},
+
+	/* voltage swing 2, pre-emphasis 0->1 */
+	{
+		{ 0x28, 0x10, 0x42, 0xe7 },
+		{ 0x2b, 0x17, 0x43, 0xe7 },
+	},
+
+	/* voltage swing 3, pre-emphasis 0 */
+	{
+		{ 0x28, 0x10, 0x43, 0xe7 },
+	},
+};
+
+static const struct dp_tx_drv_ctrl rk3588_dp_tx_drv_ctrl_hbr3[4][4] = {
+	/* voltage swing 0, pre-emphasis 0->3 */
+	{
+		{ 0x21, 0x10, 0x42, 0xe5 },
+		{ 0x26, 0x14, 0x42, 0xe5 },
+		{ 0x26, 0x16, 0x43, 0xe5 },
+		{ 0x29, 0x18, 0x43, 0xe7 },
+	},
+
+	/* voltage swing 1, pre-emphasis 0->2 */
+	{
+		{ 0x24, 0x10, 0x42, 0xe7 },
+		{ 0x2a, 0x18, 0x43, 0xe7 },
+		{ 0x2b, 0x1b, 0x43, 0xe7 }
+	},
+
+	/* voltage swing 2, pre-emphasis 0->1 */
+	{
+		{ 0x27, 0x10, 0x42, 0xe7 },
+		{ 0x2b, 0x18, 0x43, 0xe7 }
+	},
+
+	/* voltage swing 3, pre-emphasis 0 */
+	{
+		{ 0x28, 0x10, 0x43, 0xe7 },
+	},
+};
+
+static const struct reg_sequence udphy_24m_refclk_cfg[] = {
+	{0x0090, 0x68}, {0x0094, 0x68},
+	{0x0128, 0x24}, {0x012c, 0x44},
+	{0x0130, 0x3f}, {0x0134, 0x44},
+	{0x015c, 0xa9}, {0x0160, 0x71},
+	{0x0164, 0x71}, {0x0168, 0xa9},
+	{0x0174, 0xa9}, {0x0178, 0x71},
+	{0x017c, 0x71}, {0x0180, 0xa9},
+	{0x018c, 0x41}, {0x0190, 0x00},
+	{0x0194, 0x05}, {0x01ac, 0x2a},
+	{0x01b0, 0x17}, {0x01b4, 0x17},
+	{0x01b8, 0x2a}, {0x01c8, 0x04},
+	{0x01cc, 0x08}, {0x01d0, 0x08},
+	{0x01d4, 0x04}, {0x01d8, 0x20},
+	{0x01dc, 0x01}, {0x01e0, 0x09},
+	{0x01e4, 0x03}, {0x01f0, 0x29},
+	{0x01f4, 0x02}, {0x01f8, 0x02},
+	{0x01fc, 0x29}, {0x0208, 0x2a},
+	{0x020c, 0x17}, {0x0210, 0x17},
+	{0x0214, 0x2a}, {0x0224, 0x20},
+	{0x03f0, 0x0a}, {0x03f4, 0x07},
+	{0x03f8, 0x07}, {0x03fc, 0x0c},
+	{0x0404, 0x12}, {0x0408, 0x1a},
+	{0x040c, 0x1a}, {0x0410, 0x3f},
+	{0x0ce0, 0x68}, {0x0ce8, 0xd0},
+	{0x0cf0, 0x87}, {0x0cf8, 0x70},
+	{0x0d00, 0x70}, {0x0d08, 0xa9},
+	{0x1ce0, 0x68}, {0x1ce8, 0xd0},
+	{0x1cf0, 0x87}, {0x1cf8, 0x70},
+	{0x1d00, 0x70}, {0x1d08, 0xa9},
+	{0x0a3c, 0xd0}, {0x0a44, 0xd0},
+	{0x0a48, 0x01}, {0x0a4c, 0x0d},
+	{0x0a54, 0xe0}, {0x0a5c, 0xe0},
+	{0x0a64, 0xa8}, {0x1a3c, 0xd0},
+	{0x1a44, 0xd0}, {0x1a48, 0x01},
+	{0x1a4c, 0x0d}, {0x1a54, 0xe0},
+	{0x1a5c, 0xe0}, {0x1a64, 0xa8}
+};
+
+static const struct reg_sequence udphy_26m_refclk_cfg[] = {
+	{0x0830, 0x07}, {0x085c, 0x80},
+	{0x1030, 0x07}, {0x105c, 0x80},
+	{0x1830, 0x07}, {0x185c, 0x80},
+	{0x2030, 0x07}, {0x205c, 0x80},
+	{0x0228, 0x38}, {0x0104, 0x44},
+	{0x0248, 0x44}, {0x038c, 0x02},
+	{0x0878, 0x04}, {0x1878, 0x04},
+	{0x0898, 0x77}, {0x1898, 0x77},
+	{0x0054, 0x01}, {0x00e0, 0x38},
+	{0x0060, 0x24}, {0x0064, 0x77},
+	{0x0070, 0x76}, {0x0234, 0xe8},
+	{0x0af4, 0x15}, {0x1af4, 0x15},
+	{0x081c, 0xe5}, {0x181c, 0xe5},
+	{0x099c, 0x48}, {0x199c, 0x48},
+	{0x09a4, 0x07}, {0x09a8, 0x22},
+	{0x19a4, 0x07}, {0x19a8, 0x22},
+	{0x09b8, 0x3e}, {0x19b8, 0x3e},
+	{0x09e4, 0x02}, {0x19e4, 0x02},
+	{0x0a34, 0x1e}, {0x1a34, 0x1e},
+	{0x0a98, 0x2f}, {0x1a98, 0x2f},
+	{0x0c30, 0x0e}, {0x0c48, 0x06},
+	{0x1c30, 0x0e}, {0x1c48, 0x06},
+	{0x028c, 0x18}, {0x0af0, 0x00},
+	{0x1af0, 0x00}
+};
+
+static const struct reg_sequence udphy_init_sequence[] = {
+	{0x0104, 0x44}, {0x0234, 0xe8},
+	{0x0248, 0x44}, {0x028c, 0x18},
+	{0x081c, 0xe5}, {0x0878, 0x00},
+	{0x0994, 0x1c}, {0x0af0, 0x00},
+	{0x181c, 0xe5}, {0x1878, 0x00},
+	{0x1994, 0x1c}, {0x1af0, 0x00},
+	{0x0428, 0x60}, {0x0d58, 0x33},
+	{0x1d58, 0x33}, {0x0990, 0x74},
+	{0x0d64, 0x17}, {0x08c8, 0x13},
+	{0x1990, 0x74}, {0x1d64, 0x17},
+	{0x18c8, 0x13}, {0x0d90, 0x40},
+	{0x0da8, 0x40}, {0x0dc0, 0x40},
+	{0x0dd8, 0x40}, {0x1d90, 0x40},
+	{0x1da8, 0x40}, {0x1dc0, 0x40},
+	{0x1dd8, 0x40}, {0x03c0, 0x30},
+	{0x03c4, 0x06}, {0x0e10, 0x00},
+	{0x1e10, 0x00}, {0x043c, 0x0f},
+	{0x0d2c, 0xff}, {0x1d2c, 0xff},
+	{0x0d34, 0x0f}, {0x1d34, 0x0f},
+	{0x08fc, 0x2a}, {0x0914, 0x28},
+	{0x0a30, 0x03}, {0x0e38, 0x03},
+	{0x0ecc, 0x27}, {0x0ed0, 0x22},
+	{0x0ed4, 0x26}, {0x18fc, 0x2a},
+	{0x1914, 0x28}, {0x1a30, 0x03},
+	{0x1e38, 0x03}, {0x1ecc, 0x27},
+	{0x1ed0, 0x22}, {0x1ed4, 0x26},
+	{0x0048, 0x0f}, {0x0060, 0x3c},
+	{0x0064, 0xf7}, {0x006c, 0x20},
+	{0x0070, 0x7d}, {0x0074, 0x68},
+	{0x0af4, 0x1a}, {0x1af4, 0x1a},
+	{0x0440, 0x3f}, {0x10d4, 0x08},
+	{0x20d4, 0x08}, {0x00d4, 0x30},
+	{0x0024, 0x6e},
+};
+
+static inline int grfreg_write(struct regmap *base,
+			       const struct udphy_grf_reg *reg, bool en)
+{
+	u32 val, mask, tmp;
+
+	tmp = en ? reg->enable : reg->disable;
+	mask = GENMASK(reg->bitend, reg->bitstart);
+	val = (tmp << reg->bitstart) | (mask << BIT_WRITEABLE_SHIFT);
+
+	return regmap_write(base, reg->offset, val);
+}
+
+static int udphy_clk_init(struct rockchip_udphy *udphy, struct device *dev)
+{
+	int i;
+
+	udphy->num_clks = devm_clk_bulk_get_all(dev, &udphy->clks);
+	if (udphy->num_clks < 1)
+		return -ENODEV;
+
+	/* used for configure phy reference clock frequency */
+	for (i = 0; i < udphy->num_clks; i++) {
+		if (!strncmp(udphy->clks[i].id, "refclk", 6)) {
+			udphy->refclk = udphy->clks[i].clk;
+			break;
+		}
+	}
+
+	if (!udphy->refclk)
+		return dev_err_probe(udphy->dev, -EINVAL, "no refclk found\n");
+
+	return 0;
+}
+
+static int udphy_reset_assert_all(struct rockchip_udphy *udphy)
+{
+	return reset_control_bulk_assert(udphy->num_rsts, udphy->rsts);
+}
+
+static int udphy_reset_deassert_all(struct rockchip_udphy *udphy)
+{
+	return reset_control_bulk_deassert(udphy->num_rsts, udphy->rsts);
+}
+
+static int udphy_reset_deassert(struct rockchip_udphy *udphy, char *name)
+{
+	struct reset_control_bulk_data *list = udphy->rsts;
+	int idx;
+
+	for (idx = 0; idx < udphy->num_rsts; idx++) {
+		if (!strcmp(list[idx].id, name))
+			return reset_control_deassert(list[idx].rstc);
+	}
+
+	return -EINVAL;
+}
+
+static int udphy_reset_init(struct rockchip_udphy *udphy, struct device *dev)
+{
+	const struct rockchip_udphy_cfg *cfg = udphy->cfgs;
+	int idx;
+
+	udphy->num_rsts = cfg->num_rsts;
+	udphy->rsts = devm_kcalloc(dev, udphy->num_rsts,
+				   sizeof(*udphy->rsts), GFP_KERNEL);
+	if (!udphy->rsts)
+		return -ENOMEM;
+
+	for (idx = 0; idx < cfg->num_rsts; idx++)
+		udphy->rsts[idx].id = cfg->rst_list[idx];
+
+	return devm_reset_control_bulk_get_exclusive(dev, cfg->num_rsts,
+						     udphy->rsts);
+}
+
+static void udphy_u3_port_disable(struct rockchip_udphy *udphy, u8 disable)
+{
+	const struct rockchip_udphy_cfg *cfg = udphy->cfgs;
+	const struct udphy_grf_reg *preg;
+
+	preg = udphy->id ? &cfg->grfcfg.usb3otg1_cfg : &cfg->grfcfg.usb3otg0_cfg;
+	grfreg_write(udphy->usbgrf, preg, disable);
+}
+
+static void udphy_usb_bvalid_enable(struct rockchip_udphy *udphy, u8 enable)
+{
+	const struct rockchip_udphy_cfg *cfg = udphy->cfgs;
+
+	grfreg_write(udphy->u2phygrf, &cfg->grfcfg.bvalid_phy_con, enable);
+	grfreg_write(udphy->u2phygrf, &cfg->grfcfg.bvalid_grf_con, enable);
+}
+
+/*
+ * In usb/dp combo phy driver, here are 2 ways to mapping lanes.
+ *
+ * 1 Type-C Mapping table (DP_Alt_Mode V1.0b remove ABF pin mapping)
+ * ---------------------------------------------------------------------------
+ * Type-C Pin   B11-B10       A2-A3       A11-A10       B2-B3
+ * PHY Pad      ln0(tx/rx)    ln1(tx)     ln2(tx/rx)    ln3(tx)
+ * C/E(Normal)  dpln3         dpln2       dpln0         dpln1
+ * C/E(Flip  )  dpln0         dpln1       dpln3         dpln2
+ * D/F(Normal)  usbrx         usbtx       dpln0         dpln1
+ * D/F(Flip  )  dpln0         dpln1       usbrx         usbtx
+ * A(Normal  )  dpln3         dpln1       dpln2         dpln0
+ * A(Flip    )  dpln2         dpln0       dpln3         dpln1
+ * B(Normal  )  usbrx         usbtx       dpln1         dpln0
+ * B(Flip    )  dpln1         dpln0       usbrx         usbtx
+ * ---------------------------------------------------------------------------
+ *
+ * 2 Mapping the lanes in dtsi
+ * if all 4 lane assignment for dp function, define rockchip,dp-lane-mux = <x x x x>;
+ * sample as follow:
+ * ---------------------------------------------------------------------------
+ *                        B11-B10       A2-A3       A11-A10       B2-B3
+ * rockchip,dp-lane-mux   ln0(tx/rx)    ln1(tx)     ln2(tx/rx)    ln3(tx)
+ * <0 1 2 3>              dpln0         dpln1       dpln2         dpln3
+ * <2 3 0 1>              dpln2         dpln3       dpln0         dpln1
+ * ---------------------------------------------------------------------------
+ * if 2 lane for dp function, 2 lane for usb function, define rockchip,dp-lane-mux = <x x>;
+ * sample as follow:
+ * ---------------------------------------------------------------------------
+ *                        B11-B10       A2-A3       A11-A10       B2-B3
+ * rockchip,dp-lane-mux   ln0(tx/rx)    ln1(tx)     ln2(tx/rx)    ln3(tx)
+ * <0 1>                  dpln0         dpln1       usbrx         usbtx
+ * <2 3>                  usbrx         usbtx       dpln0         dpln1
+ * ---------------------------------------------------------------------------
+ */
+
+static int udphy_dplane_select(struct rockchip_udphy *udphy)
+{
+	const struct rockchip_udphy_cfg *cfg = udphy->cfgs;
+	u32 value = 0;
+
+	switch (udphy->mode) {
+	case UDPHY_MODE_DP:
+		value |= 2 << udphy->dp_lane_sel[2] * 2;
+		value |= 3 << udphy->dp_lane_sel[3] * 2;
+		fallthrough;
+	case UDPHY_MODE_DP_USB:
+		value |= 0 << udphy->dp_lane_sel[0] * 2;
+		value |= 1 << udphy->dp_lane_sel[1] * 2;
+		break;
+	case UDPHY_MODE_USB:
+		break;
+	default:
+		break;
+	}
+
+	regmap_write(udphy->vogrf, cfg->vogrfcfg[udphy->id].dp_lane_reg,
+		     ((DP_AUX_DIN_SEL | DP_AUX_DOUT_SEL | DP_LANE_SEL_ALL) << 16) |
+		     FIELD_PREP(DP_AUX_DIN_SEL, udphy->dp_aux_din_sel) |
+		     FIELD_PREP(DP_AUX_DOUT_SEL, udphy->dp_aux_dout_sel) | value);
+
+	return 0;
+}
+
+static int udphy_dplane_get(struct rockchip_udphy *udphy)
+{
+	int dp_lanes;
+
+	switch (udphy->mode) {
+	case UDPHY_MODE_DP:
+		dp_lanes = 4;
+		break;
+	case UDPHY_MODE_DP_USB:
+		dp_lanes = 2;
+		break;
+	case UDPHY_MODE_USB:
+		fallthrough;
+	default:
+		dp_lanes = 0;
+		break;
+	}
+
+	return dp_lanes;
+}
+
+static int udphy_dplane_enable(struct rockchip_udphy *udphy, int dp_lanes)
+{
+	u32 val = 0;
+	int i;
+
+	for (i = 0; i < dp_lanes; i++)
+		val |= BIT(udphy->dp_lane_sel[i]);
+
+	regmap_update_bits(udphy->pma_regmap, CMN_LANE_MUX_AND_EN_OFFSET, CMN_DP_LANE_EN_ALL,
+			   FIELD_PREP(CMN_DP_LANE_EN_ALL, val));
+
+	if (!dp_lanes)
+		regmap_update_bits(udphy->pma_regmap, CMN_DP_RSTN_OFFSET,
+				   CMN_DP_CMN_RSTN, FIELD_PREP(CMN_DP_CMN_RSTN, 0x0));
+
+	return 0;
+}
+
+static int udphy_dp_hpd_event_trigger(struct rockchip_udphy *udphy, bool hpd)
+{
+	const struct rockchip_udphy_cfg *cfg = udphy->cfgs;
+
+	udphy->dp_sink_hpd_sel = true;
+	udphy->dp_sink_hpd_cfg = hpd;
+
+	if (!udphy->dp_in_use)
+		return 0;
+
+	grfreg_write(udphy->vogrf, &cfg->vogrfcfg[udphy->id].hpd_trigger, hpd);
+
+	return 0;
+}
+
+static int udphy_set_typec_default_mapping(struct rockchip_udphy *udphy)
+{
+	if (udphy->flip) {
+		udphy->dp_lane_sel[0] = 0;
+		udphy->dp_lane_sel[1] = 1;
+		udphy->dp_lane_sel[2] = 3;
+		udphy->dp_lane_sel[3] = 2;
+		udphy->lane_mux_sel[0] = PHY_LANE_MUX_DP;
+		udphy->lane_mux_sel[1] = PHY_LANE_MUX_DP;
+		udphy->lane_mux_sel[2] = PHY_LANE_MUX_USB;
+		udphy->lane_mux_sel[3] = PHY_LANE_MUX_USB;
+		udphy->dp_aux_dout_sel = PHY_AUX_DP_DATA_POL_INVERT;
+		udphy->dp_aux_din_sel = PHY_AUX_DP_DATA_POL_INVERT;
+		gpiod_set_value_cansleep(udphy->sbu1_dc_gpio, 1);
+		gpiod_set_value_cansleep(udphy->sbu2_dc_gpio, 0);
+	} else {
+		udphy->dp_lane_sel[0] = 2;
+		udphy->dp_lane_sel[1] = 3;
+		udphy->dp_lane_sel[2] = 1;
+		udphy->dp_lane_sel[3] = 0;
+		udphy->lane_mux_sel[0] = PHY_LANE_MUX_USB;
+		udphy->lane_mux_sel[1] = PHY_LANE_MUX_USB;
+		udphy->lane_mux_sel[2] = PHY_LANE_MUX_DP;
+		udphy->lane_mux_sel[3] = PHY_LANE_MUX_DP;
+		udphy->dp_aux_dout_sel = PHY_AUX_DP_DATA_POL_NORMAL;
+		udphy->dp_aux_din_sel = PHY_AUX_DP_DATA_POL_NORMAL;
+		gpiod_set_value_cansleep(udphy->sbu1_dc_gpio, 0);
+		gpiod_set_value_cansleep(udphy->sbu2_dc_gpio, 1);
+	}
+
+	udphy->mode = UDPHY_MODE_DP_USB;
+
+	return 0;
+}
+
+static int udphy_orien_sw_set(struct typec_switch_dev *sw,
+			      enum typec_orientation orien)
+{
+	struct rockchip_udphy *udphy = typec_switch_get_drvdata(sw);
+
+	mutex_lock(&udphy->mutex);
+
+	if (orien == TYPEC_ORIENTATION_NONE) {
+		gpiod_set_value_cansleep(udphy->sbu1_dc_gpio, 0);
+		gpiod_set_value_cansleep(udphy->sbu2_dc_gpio, 0);
+		/* unattached */
+		udphy_usb_bvalid_enable(udphy, false);
+		goto unlock_ret;
+	}
+
+	udphy->flip = (orien == TYPEC_ORIENTATION_REVERSE) ? true : false;
+	udphy_set_typec_default_mapping(udphy);
+	udphy_usb_bvalid_enable(udphy, true);
+
+unlock_ret:
+	mutex_unlock(&udphy->mutex);
+	return 0;
+}
+
+static void udphy_orien_switch_unregister(void *data)
+{
+	struct rockchip_udphy *udphy = data;
+
+	typec_switch_unregister(udphy->sw);
+}
+
+static int udphy_setup_orien_switch(struct rockchip_udphy *udphy)
+{
+	struct typec_switch_desc sw_desc = { };
+
+	sw_desc.drvdata = udphy;
+	sw_desc.fwnode = dev_fwnode(udphy->dev);
+	sw_desc.set = udphy_orien_sw_set;
+
+	udphy->sw = typec_switch_register(udphy->dev, &sw_desc);
+	if (IS_ERR(udphy->sw)) {
+		dev_err(udphy->dev, "Error register typec orientation switch: %ld\n",
+			PTR_ERR(udphy->sw));
+		return PTR_ERR(udphy->sw);
+	}
+
+	return devm_add_action_or_reset(udphy->dev,
+					udphy_orien_switch_unregister, udphy);
+}
+
+static int udphy_refclk_set(struct rockchip_udphy *udphy)
+{
+	unsigned long rate;
+	int ret;
+
+	/* configure phy reference clock */
+	rate = clk_get_rate(udphy->refclk);
+	dev_dbg(udphy->dev, "refclk freq %ld\n", rate);
+
+	switch (rate) {
+	case 24000000:
+		ret = regmap_multi_reg_write(udphy->pma_regmap, udphy_24m_refclk_cfg,
+					     ARRAY_SIZE(udphy_24m_refclk_cfg));
+		if (ret)
+			return ret;
+		break;
+	case 26000000:
+		/* register default is 26MHz */
+		ret = regmap_multi_reg_write(udphy->pma_regmap, udphy_26m_refclk_cfg,
+					     ARRAY_SIZE(udphy_26m_refclk_cfg));
+		if (ret)
+			return ret;
+		break;
+	default:
+		dev_err(udphy->dev, "unsupported refclk freq %ld\n", rate);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int udphy_status_check(struct rockchip_udphy *udphy)
+{
+	unsigned int val;
+	int ret;
+
+	/* LCPLL check */
+	if (udphy->mode & UDPHY_MODE_USB) {
+		ret = regmap_read_poll_timeout(udphy->pma_regmap, CMN_ANA_LCPLL_DONE_OFFSET,
+					       val, (val & CMN_ANA_LCPLL_AFC_DONE) &&
+					       (val & CMN_ANA_LCPLL_LOCK_DONE), 200, 100000);
+		if (ret) {
+			dev_err(udphy->dev, "cmn ana lcpll lock timeout\n");
+			/*
+			 * If earlier software (U-Boot) enabled USB once already
+			 * the PLL may have problems locking on the first try.
+			 * It will be successful on the second try, so for the
+			 * time being a -EPROBE_DEFER will solve the issue.
+			 *
+			 * This requires further investigation to understand the
+			 * root cause, especially considering that the driver is
+			 * asserting all reset lines at probe time.
+			 */
+			return -EPROBE_DEFER;
+		}
+
+		if (!udphy->flip) {
+			ret = regmap_read_poll_timeout(udphy->pma_regmap,
+						       TRSV_LN0_MON_RX_CDR_DONE_OFFSET, val,
+						       val & TRSV_LN0_MON_RX_CDR_LOCK_DONE,
+						       200, 100000);
+			if (ret)
+				dev_err(udphy->dev, "trsv ln0 mon rx cdr lock timeout\n");
+		} else {
+			ret = regmap_read_poll_timeout(udphy->pma_regmap,
+						       TRSV_LN2_MON_RX_CDR_DONE_OFFSET, val,
+						       val & TRSV_LN2_MON_RX_CDR_LOCK_DONE,
+						       200, 100000);
+			if (ret)
+				dev_err(udphy->dev, "trsv ln2 mon rx cdr lock timeout\n");
+		}
+	}
+
+	return 0;
+}
+
+static int udphy_init(struct rockchip_udphy *udphy)
+{
+	const struct rockchip_udphy_cfg *cfg = udphy->cfgs;
+	int ret;
+
+	udphy_reset_assert_all(udphy);
+	usleep_range(10000, 11000);
+
+	/* enable rx lfps for usb */
+	if (udphy->mode & UDPHY_MODE_USB)
+		grfreg_write(udphy->udphygrf, &cfg->grfcfg.rx_lfps, true);
+
+	/* Step 1: power on pma and deassert apb rstn */
+	grfreg_write(udphy->udphygrf, &cfg->grfcfg.low_pwrn, true);
+
+	udphy_reset_deassert(udphy, "pma_apb");
+	udphy_reset_deassert(udphy, "pcs_apb");
+
+	/* Step 2: set init sequence and phy refclk */
+	ret = regmap_multi_reg_write(udphy->pma_regmap, udphy_init_sequence,
+				     ARRAY_SIZE(udphy_init_sequence));
+	if (ret) {
+		dev_err(udphy->dev, "init sequence set error %d\n", ret);
+		goto assert_resets;
+	}
+
+	ret = udphy_refclk_set(udphy);
+	if (ret) {
+		dev_err(udphy->dev, "refclk set error %d\n", ret);
+		goto assert_resets;
+	}
+
+	/* Step 3: configure lane mux */
+	regmap_update_bits(udphy->pma_regmap, CMN_LANE_MUX_AND_EN_OFFSET,
+			   CMN_DP_LANE_MUX_ALL | CMN_DP_LANE_EN_ALL,
+			   FIELD_PREP(CMN_DP_LANE_MUX_N(3), udphy->lane_mux_sel[3]) |
+			   FIELD_PREP(CMN_DP_LANE_MUX_N(2), udphy->lane_mux_sel[2]) |
+			   FIELD_PREP(CMN_DP_LANE_MUX_N(1), udphy->lane_mux_sel[1]) |
+			   FIELD_PREP(CMN_DP_LANE_MUX_N(0), udphy->lane_mux_sel[0]) |
+			   FIELD_PREP(CMN_DP_LANE_EN_ALL, 0));
+
+	/* Step 4: deassert init rstn and wait for 200ns from datasheet */
+	if (udphy->mode & UDPHY_MODE_USB)
+		udphy_reset_deassert(udphy, "init");
+
+	if (udphy->mode & UDPHY_MODE_DP) {
+		regmap_update_bits(udphy->pma_regmap, CMN_DP_RSTN_OFFSET,
+				   CMN_DP_INIT_RSTN,
+				   FIELD_PREP(CMN_DP_INIT_RSTN, 0x1));
+	}
+
+	udelay(1);
+
+	/*  Step 5: deassert cmn/lane rstn */
+	if (udphy->mode & UDPHY_MODE_USB) {
+		udphy_reset_deassert(udphy, "cmn");
+		udphy_reset_deassert(udphy, "lane");
+	}
+
+	/*  Step 6: wait for lock done of pll */
+	ret = udphy_status_check(udphy);
+	if (ret)
+		goto assert_resets;
+
+	return 0;
+
+assert_resets:
+	udphy_reset_assert_all(udphy);
+	return ret;
+}
+
+static int udphy_setup(struct rockchip_udphy *udphy)
+{
+	int ret = 0;
+
+	ret = clk_bulk_prepare_enable(udphy->num_clks, udphy->clks);
+	if (ret) {
+		dev_err(udphy->dev, "failed to enable clk\n");
+		return ret;
+	}
+
+	ret = udphy_init(udphy);
+	if (ret) {
+		dev_err(udphy->dev, "failed to init combophy\n");
+		clk_bulk_disable_unprepare(udphy->num_clks, udphy->clks);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int udphy_disable(struct rockchip_udphy *udphy)
+{
+	clk_bulk_disable_unprepare(udphy->num_clks, udphy->clks);
+	udphy_reset_assert_all(udphy);
+
+	return 0;
+}
+
+static int udphy_parse_lane_mux_data(struct rockchip_udphy *udphy)
+{
+	int ret, i, num_lanes;
+
+	num_lanes = device_property_count_u32(udphy->dev, "rockchip,dp-lane-mux");
+	if (num_lanes < 0) {
+		dev_dbg(udphy->dev, "no dp-lane-mux, following dp alt mode\n");
+		udphy->mode = UDPHY_MODE_USB;
+		return 0;
+	}
+
+	if (num_lanes != 2 && num_lanes != 4)
+		return dev_err_probe(udphy->dev, -EINVAL,
+				     "invalid number of lane mux\n");
+
+	ret = device_property_read_u32_array(udphy->dev, "rockchip,dp-lane-mux",
+					     udphy->dp_lane_sel, num_lanes);
+	if (ret)
+		return dev_err_probe(udphy->dev, ret, "get dp lane mux failed\n");
+
+	for (i = 0; i < num_lanes; i++) {
+		int j;
+
+		if (udphy->dp_lane_sel[i] > 3)
+			return dev_err_probe(udphy->dev, -EINVAL,
+					     "lane mux between 0 and 3, exceeding the range\n");
+
+		udphy->lane_mux_sel[udphy->dp_lane_sel[i]] = PHY_LANE_MUX_DP;
+
+		for (j = i + 1; j < num_lanes; j++) {
+			if (udphy->dp_lane_sel[i] == udphy->dp_lane_sel[j])
+				return dev_err_probe(udphy->dev, -EINVAL,
+						"set repeat lane mux value\n");
+		}
+	}
+
+	udphy->mode = UDPHY_MODE_DP;
+	if (num_lanes == 2) {
+		udphy->mode |= UDPHY_MODE_USB;
+		udphy->flip = (udphy->lane_mux_sel[0] == PHY_LANE_MUX_DP);
+	}
+
+	return 0;
+}
+
+static int udphy_get_initial_status(struct rockchip_udphy *udphy)
+{
+	int ret;
+	u32 value;
+
+	ret = clk_bulk_prepare_enable(udphy->num_clks, udphy->clks);
+	if (ret) {
+		dev_err(udphy->dev, "failed to enable clk\n");
+		return ret;
+	}
+
+	udphy_reset_deassert_all(udphy);
+
+	regmap_read(udphy->pma_regmap, CMN_LANE_MUX_AND_EN_OFFSET, &value);
+	if (FIELD_GET(CMN_DP_LANE_MUX_ALL, value) && FIELD_GET(CMN_DP_LANE_EN_ALL, value))
+		udphy->status = UDPHY_MODE_DP;
+	else
+		udphy_disable(udphy);
+
+	return 0;
+}
+
+static int udphy_parse_dt(struct rockchip_udphy *udphy)
+{
+	struct device *dev = udphy->dev;
+	struct device_node *np = dev_of_node(dev);
+	enum usb_device_speed maximum_speed;
+	int ret;
+
+	udphy->u2phygrf = syscon_regmap_lookup_by_phandle(np, "rockchip,u2phy-grf");
+	if (IS_ERR(udphy->u2phygrf))
+		return dev_err_probe(dev, PTR_ERR(udphy->u2phygrf), "failed to get u2phy-grf\n");
+
+	udphy->udphygrf = syscon_regmap_lookup_by_phandle(np, "rockchip,usbdpphy-grf");
+	if (IS_ERR(udphy->udphygrf))
+		return dev_err_probe(dev, PTR_ERR(udphy->udphygrf), "failed to get usbdpphy-grf\n");
+
+	udphy->usbgrf = syscon_regmap_lookup_by_phandle(np, "rockchip,usb-grf");
+	if (IS_ERR(udphy->usbgrf))
+		return dev_err_probe(dev, PTR_ERR(udphy->usbgrf), "failed to get usb-grf\n");
+
+	udphy->vogrf = syscon_regmap_lookup_by_phandle(np, "rockchip,vo-grf");
+	if (IS_ERR(udphy->vogrf))
+		return dev_err_probe(dev, PTR_ERR(udphy->vogrf), "failed to get vo-grf\n");
+
+	ret = udphy_parse_lane_mux_data(udphy);
+	if (ret)
+		return ret;
+
+	udphy->sbu1_dc_gpio = devm_gpiod_get_optional(dev, "sbu1-dc", GPIOD_OUT_LOW);
+	if (IS_ERR(udphy->sbu1_dc_gpio))
+		return PTR_ERR(udphy->sbu1_dc_gpio);
+
+	udphy->sbu2_dc_gpio = devm_gpiod_get_optional(dev, "sbu2-dc", GPIOD_OUT_LOW);
+	if (IS_ERR(udphy->sbu2_dc_gpio))
+		return PTR_ERR(udphy->sbu2_dc_gpio);
+
+	if (device_property_present(dev, "maximum-speed")) {
+		maximum_speed = usb_get_maximum_speed(dev);
+		udphy->hs = maximum_speed <= USB_SPEED_HIGH ? true : false;
+	}
+
+	ret = udphy_clk_init(udphy, dev);
+	if (ret)
+		return ret;
+
+	ret = udphy_reset_init(udphy, dev);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int udphy_power_on(struct rockchip_udphy *udphy, u8 mode)
+{
+	int ret;
+
+	if (!(udphy->mode & mode)) {
+		dev_info(udphy->dev, "mode 0x%02x is not support\n", mode);
+		return 0;
+	}
+
+	if (udphy->status == UDPHY_MODE_NONE) {
+		udphy->mode_change = false;
+		ret = udphy_setup(udphy);
+		if (ret)
+			return ret;
+
+		if (udphy->mode & UDPHY_MODE_USB)
+			udphy_u3_port_disable(udphy, false);
+	} else if (udphy->mode_change) {
+		udphy->mode_change = false;
+		udphy->status = UDPHY_MODE_NONE;
+		if (udphy->mode == UDPHY_MODE_DP)
+			udphy_u3_port_disable(udphy, true);
+
+		ret = udphy_disable(udphy);
+		if (ret)
+			return ret;
+		ret = udphy_setup(udphy);
+		if (ret)
+			return ret;
+	}
+
+	udphy->status |= mode;
+
+	return 0;
+}
+
+static int udphy_power_off(struct rockchip_udphy *udphy, u8 mode)
+{
+	int ret;
+
+	if (!(udphy->mode & mode)) {
+		dev_info(udphy->dev, "mode 0x%02x is not support\n", mode);
+		return 0;
+	}
+
+	if (!udphy->status)
+		return 0;
+
+	udphy->status &= ~mode;
+
+	if (udphy->status == UDPHY_MODE_NONE) {
+		ret = udphy_disable(udphy);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int rockchip_dp_phy_init(struct phy *phy)
+{
+	struct rockchip_udphy *udphy = phy_get_drvdata(phy);
+
+	mutex_lock(&udphy->mutex);
+
+	udphy->dp_in_use = true;
+	udphy_dp_hpd_event_trigger(udphy, udphy->dp_sink_hpd_cfg);
+
+	mutex_unlock(&udphy->mutex);
+
+	return 0;
+}
+
+static int rockchip_dp_phy_exit(struct phy *phy)
+{
+	struct rockchip_udphy *udphy = phy_get_drvdata(phy);
+
+	mutex_lock(&udphy->mutex);
+	udphy->dp_in_use = false;
+	mutex_unlock(&udphy->mutex);
+	return 0;
+}
+
+static int rockchip_dp_phy_power_on(struct phy *phy)
+{
+	struct rockchip_udphy *udphy = phy_get_drvdata(phy);
+	int ret, dp_lanes;
+
+	mutex_lock(&udphy->mutex);
+
+	dp_lanes = udphy_dplane_get(udphy);
+	phy_set_bus_width(phy, dp_lanes);
+
+	ret = udphy_power_on(udphy, UDPHY_MODE_DP);
+	if (ret)
+		goto unlock;
+
+	ret = udphy_dplane_enable(udphy, dp_lanes);
+	if (ret)
+		goto unlock;
+
+	ret = udphy_dplane_select(udphy);
+
+unlock:
+	mutex_unlock(&udphy->mutex);
+	/*
+	 * If data send by aux channel too fast after phy power on,
+	 * the aux may be not ready which will cause aux error. Adding
+	 * delay to avoid this issue.
+	 */
+	usleep_range(10000, 11000);
+	return ret;
+}
+
+static int rockchip_dp_phy_power_off(struct phy *phy)
+{
+	struct rockchip_udphy *udphy = phy_get_drvdata(phy);
+	int ret;
+
+	mutex_lock(&udphy->mutex);
+	ret = udphy_dplane_enable(udphy, 0);
+	if (ret)
+		goto unlock;
+
+	ret = udphy_power_off(udphy, UDPHY_MODE_DP);
+
+unlock:
+	mutex_unlock(&udphy->mutex);
+	return ret;
+}
+
+static int rockchip_dp_phy_verify_link_rate(unsigned int link_rate)
+{
+	switch (link_rate) {
+	case 1620:
+	case 2700:
+	case 5400:
+	case 8100:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int rockchip_dp_phy_verify_config(struct rockchip_udphy *udphy,
+					 struct phy_configure_opts_dp *dp)
+{
+	int i, ret;
+
+	/* If changing link rate was required, verify it's supported. */
+	ret = rockchip_dp_phy_verify_link_rate(dp->link_rate);
+	if (ret)
+		return ret;
+
+	/* Verify lane count. */
+	switch (dp->lanes) {
+	case 1:
+	case 2:
+	case 4:
+		/* valid lane count. */
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/*
+	 * If changing voltages is required, check swing and pre-emphasis
+	 * levels, per-lane.
+	 */
+	if (dp->set_voltages) {
+		/* Lane count verified previously. */
+		for (i = 0; i < dp->lanes; i++) {
+			if (dp->voltage[i] > 3 || dp->pre[i] > 3)
+				return -EINVAL;
+
+			/*
+			 * Sum of voltage swing and pre-emphasis levels cannot
+			 * exceed 3.
+			 */
+			if (dp->voltage[i] + dp->pre[i] > 3)
+				return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static void udphy_dp_set_voltage(struct rockchip_udphy *udphy, u8 bw,
+				 u32 voltage, u32 pre, u32 lane)
+{
+	const struct rockchip_udphy_cfg *cfg = udphy->cfgs;
+	const struct dp_tx_drv_ctrl (*dp_ctrl)[4];
+	u32 offset = 0x800 * lane;
+	u32 val;
+
+	if (udphy->mux)
+		dp_ctrl = cfg->dp_tx_ctrl_cfg_typec[bw];
+	else
+		dp_ctrl = cfg->dp_tx_ctrl_cfg[bw];
+
+	val = dp_ctrl[voltage][pre].trsv_reg0204;
+	regmap_write(udphy->pma_regmap, 0x0810 + offset, val);
+
+	val = dp_ctrl[voltage][pre].trsv_reg0205;
+	regmap_write(udphy->pma_regmap, 0x0814 + offset, val);
+
+	val = dp_ctrl[voltage][pre].trsv_reg0206;
+	regmap_write(udphy->pma_regmap, 0x0818 + offset, val);
+
+	val = dp_ctrl[voltage][pre].trsv_reg0207;
+	regmap_write(udphy->pma_regmap, 0x081c + offset, val);
+}
+
+static int rockchip_dp_phy_configure(struct phy *phy,
+				     union phy_configure_opts *opts)
+{
+	struct rockchip_udphy *udphy = phy_get_drvdata(phy);
+	struct phy_configure_opts_dp *dp = &opts->dp;
+	u32 i, val, lane;
+	int ret;
+
+	ret = rockchip_dp_phy_verify_config(udphy, dp);
+	if (ret)
+		return ret;
+
+	if (dp->set_rate) {
+		regmap_update_bits(udphy->pma_regmap, CMN_DP_RSTN_OFFSET,
+				   CMN_DP_CMN_RSTN, FIELD_PREP(CMN_DP_CMN_RSTN, 0x0));
+
+		switch (dp->link_rate) {
+		case 1620:
+			udphy->bw = DP_BW_RBR;
+			break;
+		case 2700:
+			udphy->bw = DP_BW_HBR;
+			break;
+		case 5400:
+			udphy->bw = DP_BW_HBR2;
+			break;
+		case 8100:
+			udphy->bw = DP_BW_HBR3;
+			break;
+		default:
+			return -EINVAL;
+		}
+
+		regmap_update_bits(udphy->pma_regmap, CMN_DP_LINK_OFFSET, CMN_DP_TX_LINK_BW,
+				   FIELD_PREP(CMN_DP_TX_LINK_BW, udphy->bw));
+		regmap_update_bits(udphy->pma_regmap, CMN_SSC_EN_OFFSET, CMN_ROPLL_SSC_EN,
+				   FIELD_PREP(CMN_ROPLL_SSC_EN, dp->ssc));
+		regmap_update_bits(udphy->pma_regmap, CMN_DP_RSTN_OFFSET, CMN_DP_CMN_RSTN,
+				   FIELD_PREP(CMN_DP_CMN_RSTN, 0x1));
+
+		ret = regmap_read_poll_timeout(udphy->pma_regmap, CMN_ANA_ROPLL_DONE_OFFSET, val,
+					       FIELD_GET(CMN_ANA_ROPLL_LOCK_DONE, val) &&
+					       FIELD_GET(CMN_ANA_ROPLL_AFC_DONE, val),
+					       0, 1000);
+		if (ret) {
+			dev_err(udphy->dev, "ROPLL is not lock, set_rate failed\n");
+			return ret;
+		}
+	}
+
+	if (dp->set_voltages) {
+		for (i = 0; i < dp->lanes; i++) {
+			lane = udphy->dp_lane_sel[i];
+			switch (dp->link_rate) {
+			case 1620:
+			case 2700:
+				regmap_update_bits(udphy->pma_regmap,
+						   TRSV_ANA_TX_CLK_OFFSET_N(lane),
+						   LN_ANA_TX_SER_TXCLK_INV,
+						   FIELD_PREP(LN_ANA_TX_SER_TXCLK_INV,
+						   udphy->lane_mux_sel[lane]));
+				break;
+			case 5400:
+			case 8100:
+				regmap_update_bits(udphy->pma_regmap,
+						   TRSV_ANA_TX_CLK_OFFSET_N(lane),
+						   LN_ANA_TX_SER_TXCLK_INV,
+						   FIELD_PREP(LN_ANA_TX_SER_TXCLK_INV, 0x0));
+				break;
+			}
+
+			udphy_dp_set_voltage(udphy, udphy->bw, dp->voltage[i], dp->pre[i], lane);
+		}
+	}
+
+	return 0;
+}
+
+static const struct phy_ops rockchip_dp_phy_ops = {
+	.init		= rockchip_dp_phy_init,
+	.exit		= rockchip_dp_phy_exit,
+	.power_on	= rockchip_dp_phy_power_on,
+	.power_off	= rockchip_dp_phy_power_off,
+	.configure	= rockchip_dp_phy_configure,
+	.owner		= THIS_MODULE,
+};
+
+static int rockchip_u3phy_init(struct phy *phy)
+{
+	struct rockchip_udphy *udphy = phy_get_drvdata(phy);
+	int ret = 0;
+
+	mutex_lock(&udphy->mutex);
+	/* DP only or high-speed, disable U3 port */
+	if (!(udphy->mode & UDPHY_MODE_USB) || udphy->hs) {
+		udphy_u3_port_disable(udphy, true);
+		goto unlock;
+	}
+
+	ret = udphy_power_on(udphy, UDPHY_MODE_USB);
+
+unlock:
+	mutex_unlock(&udphy->mutex);
+	return ret;
+}
+
+static int rockchip_u3phy_exit(struct phy *phy)
+{
+	struct rockchip_udphy *udphy = phy_get_drvdata(phy);
+	int ret = 0;
+
+	mutex_lock(&udphy->mutex);
+	/* DP only or high-speed */
+	if (!(udphy->mode & UDPHY_MODE_USB) || udphy->hs)
+		goto unlock;
+
+	ret = udphy_power_off(udphy, UDPHY_MODE_USB);
+
+unlock:
+	mutex_unlock(&udphy->mutex);
+	return ret;
+}
+
+static const struct phy_ops rockchip_u3phy_ops = {
+	.init		= rockchip_u3phy_init,
+	.exit		= rockchip_u3phy_exit,
+	.owner		= THIS_MODULE,
+};
+
+static int usbdp_typec_mux_set(struct typec_mux_dev *mux,
+			       struct typec_mux_state *state)
+{
+	struct rockchip_udphy *udphy = typec_mux_get_drvdata(mux);
+	u8 mode;
+
+	mutex_lock(&udphy->mutex);
+
+	switch (state->mode) {
+	case TYPEC_DP_STATE_C:
+		fallthrough;
+	case TYPEC_DP_STATE_E:
+		udphy->lane_mux_sel[0] = PHY_LANE_MUX_DP;
+		udphy->lane_mux_sel[1] = PHY_LANE_MUX_DP;
+		udphy->lane_mux_sel[2] = PHY_LANE_MUX_DP;
+		udphy->lane_mux_sel[3] = PHY_LANE_MUX_DP;
+		mode = UDPHY_MODE_DP;
+		break;
+	case TYPEC_DP_STATE_D:
+		fallthrough;
+	default:
+		if (udphy->flip) {
+			udphy->lane_mux_sel[0] = PHY_LANE_MUX_DP;
+			udphy->lane_mux_sel[1] = PHY_LANE_MUX_DP;
+			udphy->lane_mux_sel[2] = PHY_LANE_MUX_USB;
+			udphy->lane_mux_sel[3] = PHY_LANE_MUX_USB;
+		} else {
+			udphy->lane_mux_sel[0] = PHY_LANE_MUX_USB;
+			udphy->lane_mux_sel[1] = PHY_LANE_MUX_USB;
+			udphy->lane_mux_sel[2] = PHY_LANE_MUX_DP;
+			udphy->lane_mux_sel[3] = PHY_LANE_MUX_DP;
+		}
+		mode = UDPHY_MODE_DP_USB;
+		break;
+	}
+
+	if (state->alt && state->alt->svid == USB_TYPEC_DP_SID) {
+		struct typec_displayport_data *data = state->data;
+
+		if (!data) {
+			udphy_dp_hpd_event_trigger(udphy, false);
+		} else if (data->status & DP_STATUS_IRQ_HPD) {
+			udphy_dp_hpd_event_trigger(udphy, false);
+			usleep_range(750, 800);
+			udphy_dp_hpd_event_trigger(udphy, true);
+		} else if (data->status & DP_STATUS_HPD_STATE) {
+			if (udphy->mode != mode) {
+				udphy->mode = mode;
+				udphy->mode_change = true;
+			}
+			udphy_dp_hpd_event_trigger(udphy, true);
+		} else {
+			udphy_dp_hpd_event_trigger(udphy, false);
+		}
+	}
+
+	mutex_unlock(&udphy->mutex);
+	return 0;
+}
+
+static void udphy_typec_mux_unregister(void *data)
+{
+	struct rockchip_udphy *udphy = data;
+
+	typec_mux_unregister(udphy->mux);
+}
+
+static int udphy_setup_typec_mux(struct rockchip_udphy *udphy)
+{
+	struct typec_mux_desc mux_desc = {};
+
+	mux_desc.drvdata = udphy;
+	mux_desc.fwnode = dev_fwnode(udphy->dev);
+	mux_desc.set = usbdp_typec_mux_set;
+
+	udphy->mux = typec_mux_register(udphy->dev, &mux_desc);
+	if (IS_ERR(udphy->mux)) {
+		dev_err(udphy->dev, "Error register typec mux: %ld\n",
+			PTR_ERR(udphy->mux));
+		return PTR_ERR(udphy->mux);
+	}
+
+	return devm_add_action_or_reset(udphy->dev, udphy_typec_mux_unregister,
+					udphy);
+}
+
+static u32 udphy_dp_get_max_link_rate(struct rockchip_udphy *udphy, struct fwnode_handle *np)
+{
+	u32 max_link_rate;
+	int ret;
+
+	ret = fwnode_property_read_u32(np, "max-link-rate", &max_link_rate);
+	if (ret)
+		return 8100;
+
+	ret = rockchip_dp_phy_verify_link_rate(max_link_rate);
+	if (ret) {
+		dev_warn(udphy->dev, "invalid max-link-rate: %d\n", max_link_rate);
+		max_link_rate = 8100;
+	}
+
+	return max_link_rate;
+}
+
+static const struct regmap_config rockchip_udphy_pma_regmap_cfg = {
+	.reg_bits = 32,
+	.reg_stride = 4,
+	.val_bits = 32,
+	.fast_io = true,
+	.max_register = 0x20dc,
+};
+
+static int rockchip_udphy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct fwnode_handle *child;
+	struct phy_provider *phy_provider;
+	struct resource *res;
+	struct rockchip_udphy *udphy;
+	void __iomem *base;
+	int id, ret;
+
+	udphy = devm_kzalloc(dev, sizeof(*udphy), GFP_KERNEL);
+	if (!udphy)
+		return -ENOMEM;
+
+	udphy->cfgs = device_get_match_data(dev);
+	if (!udphy->cfgs)
+		return dev_err_probe(dev, -EINVAL, "missing match data\n");
+
+	base = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	/* find the phy-id from the io address */
+	udphy->id = -ENODEV;
+	for (id = 0; id < udphy->cfgs->num_phys; id++) {
+		if (res->start == udphy->cfgs->phy_ids[id]) {
+			udphy->id = id;
+			break;
+		}
+	}
+
+	if (udphy->id < 0)
+		return dev_err_probe(dev, -ENODEV, "no matching device found\n");
+
+	udphy->pma_regmap = devm_regmap_init_mmio(dev, base + UDPHY_PMA,
+						  &rockchip_udphy_pma_regmap_cfg);
+	if (IS_ERR(udphy->pma_regmap))
+		return PTR_ERR(udphy->pma_regmap);
+
+	udphy->dev = dev;
+	ret = udphy_parse_dt(udphy);
+	if (ret)
+		return ret;
+
+	ret = udphy_get_initial_status(udphy);
+	if (ret)
+		return ret;
+
+	mutex_init(&udphy->mutex);
+	platform_set_drvdata(pdev, udphy);
+
+	if (device_property_present(dev, "orientation-switch")) {
+		ret = udphy_setup_orien_switch(udphy);
+		if (ret)
+			return ret;
+	}
+
+	if (device_property_present(dev, "mode-switch")) {
+		ret = udphy_setup_typec_mux(udphy);
+		if (ret)
+			return ret;
+	}
+
+	fwnode_for_each_available_child_node(dev_fwnode(dev), child) {
+		const char *name = fwnode_get_name(child);
+		const struct phy_ops *ops;
+		struct phy *phy;
+
+		if (!strcmp(name, "dp-port")) {
+			ops = &rockchip_dp_phy_ops;
+		} else if (!strcmp(name, "usb3-port")) {
+			ops = &rockchip_u3phy_ops;
+		} else {
+			/* e.g. ports node used by orientation switch */
+			continue;
+		}
+
+		phy = devm_phy_create(dev, to_of_node(child), ops);
+		if (IS_ERR(phy)) {
+			fwnode_handle_put(child);
+			ret = PTR_ERR(phy);
+			return dev_err_probe(dev, ret, "failed to create phy: %pfwP\n", child);
+		}
+
+		if (ops == &rockchip_dp_phy_ops) {
+			phy_set_bus_width(phy, udphy_dplane_get(udphy));
+			phy->attrs.max_link_rate = udphy_dp_get_max_link_rate(udphy, child);
+		}
+
+		phy_set_drvdata(phy, udphy);
+	}
+
+	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+	if (IS_ERR(phy_provider)) {
+		ret = PTR_ERR(phy_provider);
+		return dev_err_probe(dev, ret, "failed to register phy provider\n");
+	}
+
+	return 0;
+}
+
+static int __maybe_unused udphy_resume(struct device *dev)
+{
+	struct rockchip_udphy *udphy = dev_get_drvdata(dev);
+
+	if (udphy->dp_sink_hpd_sel)
+		udphy_dp_hpd_event_trigger(udphy, udphy->dp_sink_hpd_cfg);
+
+	return 0;
+}
+
+static const struct dev_pm_ops udphy_pm_ops = {
+	SET_LATE_SYSTEM_SLEEP_PM_OPS(NULL, udphy_resume)
+};
+
+static const char * const udphy_rst_list[] = {
+	"init", "cmn", "lane", "pcs_apb", "pma_apb"
+};
+
+static const struct rockchip_udphy_cfg rk3588_udphy_cfgs = {
+	.num_phys = 2,
+	.phy_ids = {
+		0xfed80000,
+		0xfed90000,
+	},
+	.num_rsts = ARRAY_SIZE(udphy_rst_list),
+	.rst_list = udphy_rst_list,
+	.grfcfg	= {
+		/* u2phy-grf */
+		.bvalid_phy_con		= { 0x0008, 1, 0, 0x2, 0x3 },
+		.bvalid_grf_con		= { 0x0010, 3, 2, 0x2, 0x3 },
+
+		/* usb-grf */
+		.usb3otg0_cfg		= { 0x001c, 15, 0, 0x1100, 0x0188 },
+		.usb3otg1_cfg		= { 0x0034, 15, 0, 0x1100, 0x0188 },
+
+		/* usbdpphy-grf */
+		.low_pwrn		= { 0x0004, 13, 13, 0, 1 },
+		.rx_lfps		= { 0x0004, 14, 14, 0, 1 },
+	},
+	.vogrfcfg = {
+		{
+			.hpd_trigger	= { 0x0000, 11, 10, 1, 3 },
+			.dp_lane_reg	= 0x0000,
+		},
+		{
+			.hpd_trigger	= { 0x0008, 11, 10, 1, 3 },
+			.dp_lane_reg	= 0x0008,
+		},
+	},
+	.dp_tx_ctrl_cfg = {
+		rk3588_dp_tx_drv_ctrl_rbr_hbr,
+		rk3588_dp_tx_drv_ctrl_rbr_hbr,
+		rk3588_dp_tx_drv_ctrl_hbr2,
+		rk3588_dp_tx_drv_ctrl_hbr3,
+	},
+	.dp_tx_ctrl_cfg_typec = {
+		rk3588_dp_tx_drv_ctrl_rbr_hbr_typec,
+		rk3588_dp_tx_drv_ctrl_rbr_hbr_typec,
+		rk3588_dp_tx_drv_ctrl_hbr2,
+		rk3588_dp_tx_drv_ctrl_hbr3,
+	},
+};
+
+static const struct of_device_id rockchip_udphy_dt_match[] = {
+	{
+		.compatible = "rockchip,rk3588-usbdp-phy",
+		.data = &rk3588_udphy_cfgs
+	},
+	{ /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, rockchip_udphy_dt_match);
+
+static struct platform_driver rockchip_udphy_driver = {
+	.probe		= rockchip_udphy_probe,
+	.driver		= {
+		.name	= "rockchip-usbdp-phy",
+		.of_match_table = rockchip_udphy_dt_match,
+		.pm = &udphy_pm_ops,
+	},
+};
+
+module_platform_driver(rockchip_udphy_driver);
+
+MODULE_AUTHOR("Frank Wang <frank.wang@rock-chips.com>");
+MODULE_AUTHOR("Zhang Yubing <yubing.zhang@rock-chips.com>");
+MODULE_DESCRIPTION("Rockchip USBDP Combo PHY driver");
+MODULE_LICENSE("GPL");
-- 
2.43.0