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From:   Jacob Chen <jacob-chen@iotwrt.com>
To:     linux-rockchip@lists.infradead.org
Cc:     linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        mchehab@kernel.org, linux-media@vger.kernel.org,
        sakari.ailus@linux.intel.com, hans.verkuil@cisco.com,
        tfiga@chromium.org, zhengsq@rock-chips.com,
        laurent.pinchart@ideasonboard.com, zyc@rock-chips.com,
        eddie.cai.linux@gmail.com, jeffy.chen@rock-chips.com,
        devicetree@vger.kernel.org, heiko@sntech.de,
        Jacob Chen <jacob2.chen@rock-chips.com>,
        Jacob Chen <cc@rock-chips.com>,
        Allon Huang <allon.huang@rock-chips.com>
Subject: [PATCH v6 05/17] media: rkisp1: add Rockchip ISP1 subdev driver
Date:   Thu,  8 Mar 2018 17:47:55 +0800
Message-Id: <20180308094807.9443-6-jacob-chen@iotwrt.com>
In-Reply-To: <20180308094807.9443-1-jacob-chen@iotwrt.com>
References: <20180308094807.9443-1-jacob-chen@iotwrt.com>
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

From: Jacob Chen <jacob2.chen@rock-chips.com>

Add the subdev driver for rockchip isp1.

Signed-off-by: Jacob Chen <jacob2.chen@rock-chips.com>
Signed-off-by: Shunqian Zheng <zhengsq@rock-chips.com>
Signed-off-by: Yichong Zhong <zyc@rock-chips.com>
Signed-off-by: Jacob Chen <cc@rock-chips.com>
Signed-off-by: Eddie Cai <eddie.cai.linux@gmail.com>
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Signed-off-by: Allon Huang <allon.huang@rock-chips.com>
Signed-off-by: Tomasz Figa <tfiga@chromium.org>
---
 drivers/media/platform/rockchip/isp1/rkisp1.c | 1177 +++++++++++++++++++++++++
 drivers/media/platform/rockchip/isp1/rkisp1.h |  105 +++
 2 files changed, 1282 insertions(+)
 create mode 100644 drivers/media/platform/rockchip/isp1/rkisp1.c
 create mode 100644 drivers/media/platform/rockchip/isp1/rkisp1.h

diff --git a/drivers/media/platform/rockchip/isp1/rkisp1.c b/drivers/media/platform/rockchip/isp1/rkisp1.c
new file mode 100644
index 000000000000..bb16c8118c16
--- /dev/null
+++ b/drivers/media/platform/rockchip/isp1/rkisp1.c
@@ -0,0 +1,1177 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Rockchip isp1 driver
+ *
+ * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
+ */
+
+#include <linux/iopoll.h>
+#include <linux/pm_runtime.h>
+#include <linux/videodev2.h>
+#include <linux/vmalloc.h>
+#include <media/v4l2-event.h>
+
+#include "common.h"
+#include "regs.h"
+
+#define CIF_ISP_INPUT_W_MAX		4032
+#define CIF_ISP_INPUT_H_MAX		3024
+#define CIF_ISP_INPUT_W_MIN		32
+#define CIF_ISP_INPUT_H_MIN		32
+#define CIF_ISP_OUTPUT_W_MAX		CIF_ISP_INPUT_W_MAX
+#define CIF_ISP_OUTPUT_H_MAX		CIF_ISP_INPUT_H_MAX
+#define CIF_ISP_OUTPUT_W_MIN		CIF_ISP_INPUT_W_MIN
+#define CIF_ISP_OUTPUT_H_MIN		CIF_ISP_INPUT_H_MIN
+
+/*
+ * NOTE: MIPI controller and input MUX are also configured in this file,
+ * because ISP Subdev is not only describe ISP submodule(input size,format, output size, format),
+ * but also a virtual route device.
+ */
+
+/*
+ * There are many variables named with format/frame in below code,
+ * please see here for their meaning.
+ *
+ * Cropping regions of ISP
+ *
+ * +---------------------------------------------------------+
+ * | Sensor image                                            |
+ * | +---------------------------------------------------+   |
+ * | | ISP_ACQ (for black level)                         |   |
+ * | | in_frm                                            |   |
+ * | | +--------------------------------------------+    |   |
+ * | | |    ISP_OUT                                 |    |   |
+ * | | |    in_crop                                 |    |   |
+ * | | |    +---------------------------------+     |    |   |
+ * | | |    |   ISP_IS                        |     |    |   |
+ * | | |    |   rkisp1_isp_subdev: out_crop   |     |    |   |
+ * | | |    +---------------------------------+     |    |   |
+ * | | +--------------------------------------------+    |   |
+ * | +---------------------------------------------------+   |
+ * +---------------------------------------------------------+
+ */
+
+static inline struct rkisp1_device *sd_to_isp_dev(struct v4l2_subdev *sd)
+{
+	return container_of(sd->v4l2_dev, struct rkisp1_device, v4l2_dev);
+}
+
+/* Get sensor by enabled media link */
+static struct v4l2_subdev *get_remote_sensor(struct v4l2_subdev *sd)
+{
+	struct media_pad *local;
+	struct media_entity *sensor_me;
+
+	local = &sd->entity.pads[RKISP1_ISP_PAD_SINK];
+	sensor_me = media_entity_remote_pad(local)->entity;
+
+	return media_entity_to_v4l2_subdev(sensor_me);
+}
+
+static struct rkisp1_sensor_info *sd_to_sensor(struct rkisp1_device *dev,
+					       struct v4l2_subdev *sd)
+{
+	int i;
+
+	for (i = 0; i < dev->num_sensors; ++i)
+		if (dev->sensors[i].sd == sd)
+			return &dev->sensors[i];
+
+	return NULL;
+}
+
+/****************  register operations ****************/
+
+/*
+ * Image Stabilization.
+ * This should only be called when configuring CIF
+ * or at the frame end interrupt
+ */
+static void rkisp1_config_ism(struct rkisp1_device *dev)
+{
+	void __iomem *base = dev->base_addr;
+	struct v4l2_rect *out_crop = &dev->isp_sdev.out_crop;
+	u32 val;
+
+	writel(0, base + CIF_ISP_IS_RECENTER);
+	writel(0, base + CIF_ISP_IS_MAX_DX);
+	writel(0, base + CIF_ISP_IS_MAX_DY);
+	writel(0, base + CIF_ISP_IS_DISPLACE);
+	writel(out_crop->left, base + CIF_ISP_IS_H_OFFS);
+	writel(out_crop->top, base + CIF_ISP_IS_V_OFFS);
+	writel(out_crop->width, base + CIF_ISP_IS_H_SIZE);
+	writel(out_crop->height, base + CIF_ISP_IS_V_SIZE);
+
+	/* IS(Image Stabilization) is always on, working as output crop */
+	writel(1, base + CIF_ISP_IS_CTRL);
+	val = readl(base + CIF_ISP_CTRL);
+	val |= CIF_ISP_CTRL_ISP_CFG_UPD;
+	writel(val, base + CIF_ISP_CTRL);
+}
+
+/*
+ * configure isp blocks with input format, size......
+ */
+static int rkisp1_config_isp(struct rkisp1_device *dev)
+{
+	struct ispsd_in_fmt *in_fmt;
+	struct ispsd_out_fmt *out_fmt;
+	struct v4l2_mbus_framefmt *in_frm;
+	struct v4l2_rect *out_crop, *in_crop;
+	struct rkisp1_sensor_info *sensor;
+	void __iomem *base = dev->base_addr;
+	u32 isp_ctrl = 0;
+	u32 irq_mask = 0;
+	u32 signal = 0;
+	u32 acq_mult = 0;
+
+	sensor = dev->active_sensor;
+	in_frm = &dev->isp_sdev.in_frm;
+	in_fmt = &dev->isp_sdev.in_fmt;
+	out_fmt = &dev->isp_sdev.out_fmt;
+	out_crop = &dev->isp_sdev.out_crop;
+	in_crop = &dev->isp_sdev.in_crop;
+
+	if (in_fmt->fmt_type == FMT_BAYER) {
+		acq_mult = 1;
+		if (out_fmt->fmt_type == FMT_BAYER) {
+			if (sensor->mbus.type == V4L2_MBUS_BT656)
+				isp_ctrl =
+					CIF_ISP_CTRL_ISP_MODE_RAW_PICT_ITU656;
+			else
+				isp_ctrl =
+					CIF_ISP_CTRL_ISP_MODE_RAW_PICT;
+		} else {
+			writel(CIF_ISP_DEMOSAIC_TH(0xc),
+			       base + CIF_ISP_DEMOSAIC);
+
+			if (sensor->mbus.type == V4L2_MBUS_BT656)
+				isp_ctrl = CIF_ISP_CTRL_ISP_MODE_BAYER_ITU656;
+			else
+				isp_ctrl = CIF_ISP_CTRL_ISP_MODE_BAYER_ITU601;
+		}
+	} else if (in_fmt->fmt_type == FMT_YUV) {
+		acq_mult = 2;
+		if (sensor->mbus.type == V4L2_MBUS_CSI2) {
+			isp_ctrl = CIF_ISP_CTRL_ISP_MODE_ITU601;
+		} else {
+			if (sensor->mbus.type == V4L2_MBUS_BT656)
+				isp_ctrl = CIF_ISP_CTRL_ISP_MODE_ITU656;
+			else
+				isp_ctrl = CIF_ISP_CTRL_ISP_MODE_ITU601;
+
+		}
+
+		irq_mask |= CIF_ISP_DATA_LOSS;
+	}
+
+	/* Set up input acquisition properties */
+	if (sensor->mbus.type == V4L2_MBUS_BT656 ||
+	    sensor->mbus.type == V4L2_MBUS_PARALLEL) {
+		if (sensor->mbus.flags &
+			V4L2_MBUS_PCLK_SAMPLE_RISING)
+			signal = CIF_ISP_ACQ_PROP_POS_EDGE;
+	}
+
+	if (sensor->mbus.type == V4L2_MBUS_PARALLEL) {
+		if (sensor->mbus.flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)
+			signal |= CIF_ISP_ACQ_PROP_VSYNC_LOW;
+
+		if (sensor->mbus.flags & V4L2_MBUS_HSYNC_ACTIVE_LOW)
+			signal |= CIF_ISP_ACQ_PROP_HSYNC_LOW;
+	}
+
+	writel(isp_ctrl, base + CIF_ISP_CTRL);
+	writel(signal | in_fmt->yuv_seq |
+	       CIF_ISP_ACQ_PROP_BAYER_PAT(in_fmt->bayer_pat) |
+	       CIF_ISP_ACQ_PROP_FIELD_SEL_ALL, base + CIF_ISP_ACQ_PROP);
+	writel(0, base + CIF_ISP_ACQ_NR_FRAMES);
+
+	/* Acquisition Size */
+	writel(0, base + CIF_ISP_ACQ_H_OFFS);
+	writel(0, base + CIF_ISP_ACQ_V_OFFS);
+	writel(acq_mult * in_frm->width, base + CIF_ISP_ACQ_H_SIZE);
+	writel(in_frm->height, base + CIF_ISP_ACQ_V_SIZE);
+
+	/* ISP Out Area */
+	writel(in_crop->left, base + CIF_ISP_OUT_H_OFFS);
+	writel(in_crop->top, base + CIF_ISP_OUT_V_OFFS);
+	writel(in_crop->width, base + CIF_ISP_OUT_H_SIZE);
+	writel(in_crop->height, base + CIF_ISP_OUT_V_SIZE);
+
+	/* interrupt mask */
+	irq_mask |= CIF_ISP_FRAME | CIF_ISP_V_START | CIF_ISP_PIC_SIZE_ERROR |
+		    CIF_ISP_FRAME_IN;
+	writel(irq_mask, base + CIF_ISP_IMSC);
+
+	if (out_fmt->fmt_type == FMT_BAYER)
+		rkisp1_params_disable_isp(&dev->params_vdev);
+	else
+		rkisp1_params_configure_isp(&dev->params_vdev, in_fmt,
+				     dev->isp_sdev.quantization);
+
+	return 0;
+}
+
+static int rkisp1_config_dvp(struct rkisp1_device *dev)
+{
+	struct ispsd_in_fmt *in_fmt = &dev->isp_sdev.in_fmt;
+	void __iomem *base = dev->base_addr;
+	u32 val, input_sel;
+
+	switch (in_fmt->bus_width) {
+	case 8:
+		input_sel = CIF_ISP_ACQ_PROP_IN_SEL_8B_ZERO;
+		break;
+	case 10:
+		input_sel = CIF_ISP_ACQ_PROP_IN_SEL_10B_ZERO;
+		break;
+	case 12:
+		input_sel = CIF_ISP_ACQ_PROP_IN_SEL_12B;
+		break;
+	default:
+		v4l2_err(&dev->v4l2_dev, "Invalid bus width\n");
+		return -EINVAL;
+	}
+
+	val = readl(base + CIF_ISP_ACQ_PROP);
+	writel(val | input_sel, base + CIF_ISP_ACQ_PROP);
+
+	return 0;
+}
+
+static int rkisp1_config_mipi(struct rkisp1_device *dev)
+{
+	u32 mipi_ctrl;
+	void __iomem *base = dev->base_addr;
+	struct ispsd_in_fmt *in_fmt = &dev->isp_sdev.in_fmt;
+	struct rkisp1_sensor_info *sensor = dev->active_sensor;
+	int lanes;
+
+	/*
+	 * sensor->mbus is set in isp or d-phy notifier_bound function
+	 */
+	switch (sensor->mbus.flags & V4L2_MBUS_CSI2_LANES) {
+	case V4L2_MBUS_CSI2_4_LANE:
+		lanes = 4;
+		break;
+	case V4L2_MBUS_CSI2_3_LANE:
+		lanes = 3;
+		break;
+	case V4L2_MBUS_CSI2_2_LANE:
+		lanes = 2;
+		break;
+	case V4L2_MBUS_CSI2_1_LANE:
+		lanes = 1;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	mipi_ctrl = CIF_MIPI_CTRL_NUM_LANES(lanes - 1) |
+		    CIF_MIPI_CTRL_SHUTDOWNLANES(0xf) |
+		    CIF_MIPI_CTRL_ERR_SOT_SYNC_HS_SKIP |
+		    CIF_MIPI_CTRL_CLOCKLANE_ENA;
+
+	writel(mipi_ctrl, base + CIF_MIPI_CTRL);
+
+	/* Configure Data Type and Virtual Channel */
+	writel(CIF_MIPI_DATA_SEL_DT(in_fmt->mipi_dt) | CIF_MIPI_DATA_SEL_VC(0),
+	       base + CIF_MIPI_IMG_DATA_SEL);
+
+	/* Clear MIPI interrupts */
+	writel(~0, base + CIF_MIPI_ICR);
+	/*
+	 * Disable CIF_MIPI_ERR_DPHY interrupt here temporary for
+	 * isp bus may be dead when switch isp.
+	 */
+	writel(CIF_MIPI_FRAME_END | CIF_MIPI_ERR_CSI | CIF_MIPI_ERR_DPHY |
+	       CIF_MIPI_SYNC_FIFO_OVFLW(0x03) | CIF_MIPI_ADD_DATA_OVFLW,
+	       base + CIF_MIPI_IMSC);
+
+	v4l2_dbg(1, rkisp1_debug, &dev->v4l2_dev, "\n  MIPI_CTRL 0x%08x\n"
+		 "  MIPI_IMG_DATA_SEL 0x%08x\n"
+		 "  MIPI_STATUS 0x%08x\n"
+		 "  MIPI_IMSC 0x%08x\n",
+		 readl(base + CIF_MIPI_CTRL),
+		 readl(base + CIF_MIPI_IMG_DATA_SEL),
+		 readl(base + CIF_MIPI_STATUS),
+		 readl(base + CIF_MIPI_IMSC));
+
+	return 0;
+}
+
+/* Configure MUX */
+static int rkisp1_config_path(struct rkisp1_device *dev)
+{
+	int ret = 0;
+	struct rkisp1_sensor_info *sensor = dev->active_sensor;
+	u32 dpcl = readl(dev->base_addr + CIF_VI_DPCL);
+
+	if (sensor->mbus.type == V4L2_MBUS_BT656 ||
+	    sensor->mbus.type == V4L2_MBUS_PARALLEL) {
+		ret = rkisp1_config_dvp(dev);
+		dpcl |= CIF_VI_DPCL_IF_SEL_PARALLEL;
+	} else if (sensor->mbus.type == V4L2_MBUS_CSI2) {
+		ret = rkisp1_config_mipi(dev);
+		dpcl |= CIF_VI_DPCL_IF_SEL_MIPI;
+	}
+
+	writel(dpcl, dev->base_addr + CIF_VI_DPCL);
+
+	return ret;
+}
+
+/* Hareware configure Entry */
+static int rkisp1_config_cif(struct rkisp1_device *dev)
+{
+	int ret = 0;
+	u32 cif_id;
+
+	v4l2_dbg(1, rkisp1_debug, &dev->v4l2_dev,
+		 "SP state = %d, MP state = %d\n",
+		 dev->stream[RKISP1_STREAM_SP].state,
+		 dev->stream[RKISP1_STREAM_MP].state);
+
+	cif_id = readl(dev->base_addr + CIF_VI_ID);
+	v4l2_dbg(1, rkisp1_debug, &dev->v4l2_dev, "CIF_ID 0x%08x\n", cif_id);
+
+	ret = rkisp1_config_isp(dev);
+	if (ret < 0)
+		return ret;
+	ret = rkisp1_config_path(dev);
+	if (ret < 0)
+		return ret;
+	rkisp1_config_ism(dev);
+
+	return 0;
+}
+
+/* Mess register operations to stop isp */
+static int rkisp1_isp_stop(struct rkisp1_device *dev)
+{
+	void __iomem *base = dev->base_addr;
+	u32 val;
+
+	v4l2_dbg(1, rkisp1_debug, &dev->v4l2_dev,
+		 "SP state = %d, MP state = %d\n",
+		 dev->stream[RKISP1_STREAM_SP].state,
+		 dev->stream[RKISP1_STREAM_MP].state);
+
+	/*
+	 * ISP(mi) stop in mi frame end -> Stop ISP(mipi) ->
+	 * Stop ISP(isp) ->wait for ISP isp off
+	 */
+	/* stop and clear MI, MIPI, and ISP interrupts */
+	writel(0, base + CIF_MIPI_IMSC);
+	writel(~0, base + CIF_MIPI_ICR);
+
+	writel(0, base + CIF_ISP_IMSC);
+	writel(~0, base + CIF_ISP_ICR);
+
+	writel(0, base + CIF_MI_IMSC);
+	writel(~0, base + CIF_MI_ICR);
+	val = readl(base + CIF_MIPI_CTRL);
+	writel(val & (~CIF_MIPI_CTRL_OUTPUT_ENA), base + CIF_MIPI_CTRL);
+	/* stop ISP */
+	val = readl(base + CIF_ISP_CTRL);
+	val &= ~(CIF_ISP_CTRL_ISP_INFORM_ENABLE | CIF_ISP_CTRL_ISP_ENABLE);
+	writel(val, base + CIF_ISP_CTRL);
+
+	val = readl(base + CIF_ISP_CTRL);
+	writel(val | CIF_ISP_CTRL_ISP_CFG_UPD, base + CIF_ISP_CTRL);
+
+	readx_poll_timeout(readl, base + CIF_ISP_RIS,
+			   val, val & CIF_ISP_OFF, 20, 100);
+	v4l2_dbg(1, rkisp1_debug, &dev->v4l2_dev,
+		"state(MP:%d, SP:%d), MI_CTRL:%x, ISP_CTRL:%x, MIPI_CTRL:%x\n",
+		 dev->stream[RKISP1_STREAM_SP].state,
+		 dev->stream[RKISP1_STREAM_MP].state,
+		 readl(base + CIF_MI_CTRL),
+		 readl(base + CIF_ISP_CTRL),
+		 readl(base + CIF_MIPI_CTRL));
+
+	writel(CIF_IRCL_MIPI_SW_RST | CIF_IRCL_ISP_SW_RST, base + CIF_IRCL);
+	writel(0x0, base + CIF_IRCL);
+
+	return 0;
+}
+
+/* Mess register operations to start isp */
+static int rkisp1_isp_start(struct rkisp1_device *dev)
+{
+	struct rkisp1_sensor_info *sensor = dev->active_sensor;
+	void __iomem *base = dev->base_addr;
+	u32 val;
+
+	v4l2_dbg(1, rkisp1_debug, &dev->v4l2_dev,
+		 "SP state = %d, MP state = %d\n",
+		 dev->stream[RKISP1_STREAM_SP].state,
+		 dev->stream[RKISP1_STREAM_MP].state);
+
+	/* Activate MIPI */
+	if (sensor->mbus.type == V4L2_MBUS_CSI2) {
+		val = readl(base + CIF_MIPI_CTRL);
+		writel(val | CIF_MIPI_CTRL_OUTPUT_ENA, base + CIF_MIPI_CTRL);
+	}
+	/* Activate ISP */
+	val = readl(base + CIF_ISP_CTRL);
+	val |= CIF_ISP_CTRL_ISP_CFG_UPD | CIF_ISP_CTRL_ISP_ENABLE |
+	       CIF_ISP_CTRL_ISP_INFORM_ENABLE;
+	writel(val, base + CIF_ISP_CTRL);
+
+	/* XXX: Is the 1000us too long?
+	 * CIF spec says to wait for sufficient time after enabling
+	 * the MIPI interface and before starting the sensor output.
+	 */
+	usleep_range(1000, 1200);
+
+	v4l2_dbg(1, rkisp1_debug, &dev->v4l2_dev,
+		 "SP state = %d, MP state = %d MI_CTRL 0x%08x\n"
+		 "  ISP_CTRL 0x%08x MIPI_CTRL 0x%08x\n",
+		 dev->stream[RKISP1_STREAM_SP].state,
+		 dev->stream[RKISP1_STREAM_MP].state,
+		 readl(base + CIF_MI_CTRL),
+		 readl(base + CIF_ISP_CTRL),
+		 readl(base + CIF_MIPI_CTRL));
+
+	return 0;
+}
+
+static void rkisp1_config_clk(struct rkisp1_device *dev)
+{
+	u32 val = CIF_ICCL_ISP_CLK | CIF_ICCL_CP_CLK | CIF_ICCL_MRSZ_CLK |
+		CIF_ICCL_SRSZ_CLK | CIF_ICCL_JPEG_CLK | CIF_ICCL_MI_CLK |
+		CIF_ICCL_IE_CLK | CIF_ICCL_MIPI_CLK | CIF_ICCL_DCROP_CLK;
+
+	writel(val, dev->base_addr + CIF_ICCL);
+}
+
+/***************************** isp sub-devs *******************************/
+
+static const struct ispsd_in_fmt rkisp1_isp_input_formats[] = {
+	{
+		.mbus_code	= MEDIA_BUS_FMT_SBGGR10_1X10,
+		.fmt_type	= FMT_BAYER,
+		.mipi_dt	= CIF_CSI2_DT_RAW10,
+		.bayer_pat	= RAW_BGGR,
+		.bus_width	= 10,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SRGGB10_1X10,
+		.fmt_type	= FMT_BAYER,
+		.mipi_dt	= CIF_CSI2_DT_RAW10,
+		.bayer_pat	= RAW_RGGB,
+		.bus_width	= 10,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SGBRG10_1X10,
+		.fmt_type	= FMT_BAYER,
+		.mipi_dt	= CIF_CSI2_DT_RAW10,
+		.bayer_pat	= RAW_GBRG,
+		.bus_width	= 10,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SGRBG10_1X10,
+		.fmt_type	= FMT_BAYER,
+		.mipi_dt	= CIF_CSI2_DT_RAW10,
+		.bayer_pat	= RAW_GRBG,
+		.bus_width	= 10,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SRGGB12_1X12,
+		.fmt_type	= FMT_BAYER,
+		.mipi_dt	= CIF_CSI2_DT_RAW12,
+		.bayer_pat	= RAW_RGGB,
+		.bus_width	= 12,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SBGGR12_1X12,
+		.fmt_type	= FMT_BAYER,
+		.mipi_dt	= CIF_CSI2_DT_RAW12,
+		.bayer_pat	= RAW_BGGR,
+		.bus_width	= 12,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SGBRG12_1X12,
+		.fmt_type	= FMT_BAYER,
+		.mipi_dt	= CIF_CSI2_DT_RAW12,
+		.bayer_pat	= RAW_GBRG,
+		.bus_width	= 12,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SGRBG12_1X12,
+		.fmt_type	= FMT_BAYER,
+		.mipi_dt	= CIF_CSI2_DT_RAW12,
+		.bayer_pat	= RAW_GRBG,
+		.bus_width	= 12,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SRGGB8_1X8,
+		.fmt_type	= FMT_BAYER,
+		.mipi_dt	= CIF_CSI2_DT_RAW8,
+		.bayer_pat	= RAW_RGGB,
+		.bus_width	= 8,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SBGGR8_1X8,
+		.fmt_type	= FMT_BAYER,
+		.mipi_dt	= CIF_CSI2_DT_RAW8,
+		.bayer_pat	= RAW_BGGR,
+		.bus_width	= 8,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SGBRG8_1X8,
+		.fmt_type	= FMT_BAYER,
+		.mipi_dt	= CIF_CSI2_DT_RAW8,
+		.bayer_pat	= RAW_GBRG,
+		.bus_width	= 8,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SGRBG8_1X8,
+		.fmt_type	= FMT_BAYER,
+		.mipi_dt	= CIF_CSI2_DT_RAW8,
+		.bayer_pat	= RAW_GRBG,
+		.bus_width	= 8,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_YUYV8_1X16,
+		.fmt_type	= FMT_YUV,
+		.mipi_dt	= CIF_CSI2_DT_YUV422_8b,
+		.yuv_seq	= CIF_ISP_ACQ_PROP_YCBYCR,
+		.bus_width	= 16,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_YVYU8_1X16,
+		.fmt_type	= FMT_YUV,
+		.mipi_dt	= CIF_CSI2_DT_YUV422_8b,
+		.yuv_seq	= CIF_ISP_ACQ_PROP_YCRYCB,
+		.bus_width	= 16,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_UYVY8_1X16,
+		.fmt_type	= FMT_YUV,
+		.mipi_dt	= CIF_CSI2_DT_YUV422_8b,
+		.yuv_seq	= CIF_ISP_ACQ_PROP_CBYCRY,
+		.bus_width	= 16,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_VYUY8_1X16,
+		.fmt_type	= FMT_YUV,
+		.mipi_dt	= CIF_CSI2_DT_YUV422_8b,
+		.yuv_seq	= CIF_ISP_ACQ_PROP_CRYCBY,
+		.bus_width	= 16,
+	},
+};
+
+static const struct ispsd_out_fmt rkisp1_isp_output_formats[] = {
+	{
+		.mbus_code	= MEDIA_BUS_FMT_YUYV8_2X8,
+		.fmt_type	= FMT_YUV,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SRGGB12_1X12,
+		.fmt_type	= FMT_BAYER,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SBGGR12_1X12,
+		.fmt_type	= FMT_BAYER,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SGBRG12_1X12,
+		.fmt_type	= FMT_BAYER,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SGRBG12_1X12,
+		.fmt_type	= FMT_BAYER,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SRGGB10_1X10,
+		.fmt_type	= FMT_BAYER,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SBGGR10_1X10,
+		.fmt_type	= FMT_BAYER,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SGBRG10_1X10,
+		.fmt_type	= FMT_BAYER,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SGRBG10_1X10,
+		.fmt_type	= FMT_BAYER,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SRGGB8_1X8,
+		.fmt_type	= FMT_BAYER,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SBGGR8_1X8,
+		.fmt_type	= FMT_BAYER,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SGBRG8_1X8,
+		.fmt_type	= FMT_BAYER,
+	}, {
+		.mbus_code	= MEDIA_BUS_FMT_SGRBG8_1X8,
+		.fmt_type	= FMT_BAYER,
+	},
+};
+
+static const struct ispsd_in_fmt *find_in_fmt(u32 mbus_code)
+{
+	const struct ispsd_in_fmt *fmt;
+	int i, array_size = ARRAY_SIZE(rkisp1_isp_input_formats);
+
+	for (i = 0; i < array_size; i++) {
+		fmt = &rkisp1_isp_input_formats[i];
+		if (fmt->mbus_code == mbus_code)
+			return fmt;
+	}
+
+	return NULL;
+}
+
+static const struct ispsd_out_fmt *find_out_fmt(u32 mbus_code)
+{
+	const struct ispsd_out_fmt *fmt;
+	int i, array_size = ARRAY_SIZE(rkisp1_isp_output_formats);
+
+	for (i = 0; i < array_size; i++) {
+		fmt = &rkisp1_isp_output_formats[i];
+		if (fmt->mbus_code == mbus_code)
+			return fmt;
+	}
+
+	return NULL;
+}
+
+static int rkisp1_isp_sd_enum_mbus_code(struct v4l2_subdev *sd,
+					struct v4l2_subdev_pad_config *cfg,
+					struct v4l2_subdev_mbus_code_enum *code)
+{
+	int i = code->index;
+
+	if (code->pad == RKISP1_ISP_PAD_SINK) {
+		if (i >= ARRAY_SIZE(rkisp1_isp_input_formats))
+			return -EINVAL;
+		code->code = rkisp1_isp_input_formats[i].mbus_code;
+	} else {
+		if (i >= ARRAY_SIZE(rkisp1_isp_output_formats))
+			return -EINVAL;
+		code->code = rkisp1_isp_output_formats[i].mbus_code;
+	}
+
+	return 0;
+}
+
+#define sd_to_isp_sd(_sd) container_of(_sd, struct rkisp1_isp_subdev, sd)
+static int rkisp1_isp_sd_get_fmt(struct v4l2_subdev *sd,
+				 struct v4l2_subdev_pad_config *cfg,
+				 struct v4l2_subdev_format *fmt)
+{
+	struct v4l2_mbus_framefmt *mf = &fmt->format;
+	struct rkisp1_isp_subdev *isp_sd = sd_to_isp_sd(sd);
+
+	if ((fmt->pad != RKISP1_ISP_PAD_SINK) &&
+	    (fmt->pad != RKISP1_ISP_PAD_SOURCE_PATH))
+		return -EINVAL;
+
+	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+		mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
+		fmt->format = *mf;
+		return 0;
+	}
+
+	if (fmt->pad == RKISP1_ISP_PAD_SINK) {
+		*mf = isp_sd->in_frm;
+	} else if (fmt->pad == RKISP1_ISP_PAD_SOURCE_PATH) {
+		/* format of source pad */
+		*mf = isp_sd->in_frm;
+		/* window size of source pad */
+		mf->width = isp_sd->out_crop.width;
+		mf->height = isp_sd->out_crop.height;
+		mf->quantization = isp_sd->quantization;
+	}
+	mf->field = V4L2_FIELD_NONE;
+
+	return 0;
+}
+
+static void rkisp1_isp_sd_try_fmt(struct v4l2_subdev *sd,
+				  unsigned int pad,
+				  struct v4l2_mbus_framefmt *fmt)
+{
+	struct rkisp1_device *isp_dev = sd_to_isp_dev(sd);
+	struct rkisp1_isp_subdev *isp_sd = &isp_dev->isp_sdev;
+	const struct ispsd_in_fmt *in_fmt;
+	const struct ispsd_out_fmt *out_fmt;
+
+	switch (pad) {
+	case RKISP1_ISP_PAD_SINK:
+		in_fmt = find_in_fmt(fmt->code);
+		if (in_fmt)
+			fmt->code = in_fmt->mbus_code;
+		else
+			fmt->code = MEDIA_BUS_FMT_SRGGB10_1X10;
+		fmt->width  = clamp_t(u32, fmt->width, CIF_ISP_INPUT_W_MIN,
+				      CIF_ISP_INPUT_W_MAX);
+		fmt->height = clamp_t(u32, fmt->height, CIF_ISP_INPUT_H_MIN,
+				      CIF_ISP_INPUT_H_MAX);
+		break;
+	case RKISP1_ISP_PAD_SOURCE_PATH:
+		out_fmt = find_out_fmt(fmt->code);
+		if (out_fmt)
+			fmt->code = out_fmt->mbus_code;
+		else
+			fmt->code = MEDIA_BUS_FMT_YUYV8_2X8;
+		/* window size is set in s_selection */
+		fmt->width  = isp_sd->out_crop.width;
+		fmt->height = isp_sd->out_crop.height;
+		/* full range by default */
+		if (!fmt->quantization)
+			fmt->quantization = V4L2_QUANTIZATION_FULL_RANGE;
+		break;
+	}
+
+	fmt->field = V4L2_FIELD_NONE;
+}
+
+static int rkisp1_isp_sd_set_fmt(struct v4l2_subdev *sd,
+				 struct v4l2_subdev_pad_config *cfg,
+				 struct v4l2_subdev_format *fmt)
+{
+	struct rkisp1_device *isp_dev = sd_to_isp_dev(sd);
+	struct rkisp1_isp_subdev *isp_sd = &isp_dev->isp_sdev;
+	struct v4l2_mbus_framefmt *mf = &fmt->format;
+
+	if ((fmt->pad != RKISP1_ISP_PAD_SINK) &&
+	    (fmt->pad != RKISP1_ISP_PAD_SOURCE_PATH))
+		return -EINVAL;
+
+	rkisp1_isp_sd_try_fmt(sd, fmt->pad, mf);
+
+	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+		struct v4l2_mbus_framefmt *try_mf;
+
+		mf = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
+		*try_mf = *mf;
+		return 0;
+	}
+
+	if (fmt->pad == RKISP1_ISP_PAD_SINK) {
+		const struct ispsd_in_fmt *in_fmt;
+
+		in_fmt = find_in_fmt(mf->code);
+		isp_sd->in_fmt = *in_fmt;
+		isp_sd->in_frm = *mf;
+	} else if (fmt->pad == RKISP1_ISP_PAD_SOURCE_PATH) {
+		const struct ispsd_out_fmt *out_fmt;
+
+		/* Ignore width/height */
+		out_fmt = find_out_fmt(mf->code);
+		isp_sd->out_fmt = *out_fmt;
+		/*
+		 * It is quantization for output,
+		 * isp use bt601 limit-range in internal
+		 */
+		isp_sd->quantization = mf->quantization;
+	}
+
+	return 0;
+}
+
+static void rkisp1_isp_sd_try_crop(struct v4l2_subdev *sd,
+				  struct v4l2_subdev_pad_config *cfg,
+				  struct v4l2_subdev_selection *sel)
+{
+	struct rkisp1_isp_subdev *isp_sd = sd_to_isp_sd(sd);
+	struct v4l2_mbus_framefmt in_frm = isp_sd->in_frm;
+	struct v4l2_rect in_crop = isp_sd->in_crop;
+	struct v4l2_rect *input = &sel->r;
+
+	if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
+		in_frm = *v4l2_subdev_get_try_format(sd, cfg, RKISP1_ISP_PAD_SINK);
+		in_crop = *v4l2_subdev_get_try_crop(sd, cfg, RKISP1_ISP_PAD_SINK);
+	}
+
+	input->left = ALIGN(input->left, 2);
+	input->width = ALIGN(input->width, 2);
+
+	if (sel->pad == RKISP1_ISP_PAD_SINK) {
+		input->left = clamp_t(u32, input->left, 0, in_frm.width);
+		input->top = clamp_t(u32, input->top, 0, in_frm.height);
+		input->width = clamp_t(u32, input->width, CIF_ISP_INPUT_W_MIN,
+				in_frm.width - input->left);
+		input->height = clamp_t(u32, input->height,
+				CIF_ISP_INPUT_H_MIN,
+				in_frm.height - input->top);
+	} else if (sel->pad == RKISP1_ISP_PAD_SOURCE_PATH) {
+		input->left = clamp_t(u32, input->left, 0, in_crop.width);
+		input->top = clamp_t(u32, input->top, 0, in_crop.height);
+		input->width = clamp_t(u32, input->width, CIF_ISP_OUTPUT_W_MIN,
+				in_crop.width - input->left);
+		input->height = clamp_t(u32, input->height, CIF_ISP_OUTPUT_H_MIN,
+				in_crop.height - input->top);
+	}
+}
+
+static int rkisp1_isp_sd_get_selection(struct v4l2_subdev *sd,
+				       struct v4l2_subdev_pad_config *cfg,
+				       struct v4l2_subdev_selection *sel)
+{
+	struct rkisp1_isp_subdev *isp_sd = sd_to_isp_sd(sd);
+
+	if (sel->pad != RKISP1_ISP_PAD_SOURCE_PATH &&
+	    sel->pad != RKISP1_ISP_PAD_SINK)
+		return -EINVAL;
+
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+		if (sel->pad == RKISP1_ISP_PAD_SINK) {
+			sel->r.height = isp_sd->in_frm.height;
+			sel->r.width = isp_sd->in_frm.width;
+			sel->r.left = 0;
+			sel->r.top = 0;
+		} else {
+			sel->r = isp_sd->in_crop;
+		}
+		break;
+	case V4L2_SEL_TGT_CROP:
+		if (sel->pad == RKISP1_ISP_PAD_SINK)
+			sel->r = isp_sd->in_crop;
+		else
+			sel->r = isp_sd->out_crop;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
+		struct v4l2_rect *try_sel;
+
+		try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad);
+		sel->r = *try_sel;
+	}
+
+	return 0;
+}
+
+static int rkisp1_isp_sd_set_selection(struct v4l2_subdev *sd,
+				       struct v4l2_subdev_pad_config *cfg,
+				       struct v4l2_subdev_selection *sel)
+{
+	struct rkisp1_isp_subdev *isp_sd = sd_to_isp_sd(sd);
+	struct rkisp1_device *dev = sd_to_isp_dev(sd);
+
+	if (sel->pad != RKISP1_ISP_PAD_SOURCE_PATH &&
+	    sel->pad != RKISP1_ISP_PAD_SINK)
+		return -EINVAL;
+	if (sel->target != V4L2_SEL_TGT_CROP)
+		return -EINVAL;
+
+	v4l2_dbg(1, rkisp1_debug, &dev->v4l2_dev,
+		 "%s: pad: %d sel(%d,%d)/%dx%d\n", __func__, sel->pad,
+		 sel->r.left, sel->r.top, sel->r.width, sel->r.height);
+	rkisp1_isp_sd_try_crop(sd, cfg, sel);
+
+	if (sel->which == V4L2_SUBDEV_FORMAT_TRY) {
+		struct v4l2_rect *try_sel;
+
+		try_sel = v4l2_subdev_get_try_crop(sd, cfg, sel->pad);
+		*try_sel = sel->r;
+		return 0;
+	}
+
+	if (sel->pad == RKISP1_ISP_PAD_SINK)
+		isp_sd->in_crop = sel->r;
+	else
+		isp_sd->out_crop = sel->r;
+
+	return 0;
+}
+
+static int rkisp1_isp_sd_s_stream(struct v4l2_subdev *sd, int on)
+{
+	struct rkisp1_device *isp_dev = sd_to_isp_dev(sd);
+	struct rkisp1_sensor_info *sensor;
+	struct v4l2_subdev *sensor_sd;
+	int ret = 0;
+
+	if (!on)
+		return rkisp1_isp_stop(isp_dev);
+
+	sensor_sd = get_remote_sensor(sd);
+	if (!sensor_sd)
+		return -ENODEV;
+
+	sensor = sd_to_sensor(isp_dev, sensor_sd);
+	/*
+	 * Update sensor bus configuration. This is only effective
+	 * for sensors chained off an external CSI2 PHY.
+	 */
+	ret = v4l2_subdev_call(sensor->sd, video, g_mbus_config,
+			       &sensor->mbus);
+	if (ret && ret != -ENOIOCTLCMD)
+		return ret;
+	isp_dev->active_sensor = sensor;
+
+	atomic_set(&isp_dev->isp_sdev.frm_sync_seq, 0);
+	ret = rkisp1_config_cif(isp_dev);
+	if (ret < 0)
+		return ret;
+
+	return rkisp1_isp_start(isp_dev);
+}
+
+static int rkisp1_isp_sd_s_power(struct v4l2_subdev *sd, int on)
+{
+	struct rkisp1_device *isp_dev = sd_to_isp_dev(sd);
+	int ret;
+
+	v4l2_dbg(1, rkisp1_debug, &isp_dev->v4l2_dev, "s_power: %d\n", on);
+
+	if (on) {
+		ret = pm_runtime_get_sync(isp_dev->dev);
+		if (ret < 0)
+			return ret;
+
+		rkisp1_config_clk(isp_dev);
+	} else {
+		ret = pm_runtime_put(isp_dev->dev);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int rkisp1_subdev_link_validate(struct media_link *link)
+{
+	if (link->source->index == RKISP1_ISP_PAD_SINK_PARAMS)
+		return 0;
+
+	return v4l2_subdev_link_validate(link);
+}
+
+static int rkisp1_subdev_fmt_link_validate(struct v4l2_subdev *sd,
+			     struct media_link *link,
+			     struct v4l2_subdev_format *source_fmt,
+			     struct v4l2_subdev_format *sink_fmt)
+{
+	if (source_fmt->format.code != sink_fmt->format.code)
+		return -EINVAL;
+
+	/* Crop is available */
+	if (source_fmt->format.width < sink_fmt->format.width ||
+		source_fmt->format.height < sink_fmt->format.height)
+		return -EINVAL;
+
+	return 0;
+}
+
+static void
+riksp1_isp_queue_event_sof(struct rkisp1_isp_subdev *isp)
+{
+	struct v4l2_event event = {
+		.type = V4L2_EVENT_FRAME_SYNC,
+		.u.frame_sync.frame_sequence =
+			atomic_inc_return(&isp->frm_sync_seq) - 1,
+	};
+	v4l2_event_queue(isp->sd.devnode, &event);
+}
+
+static int rkisp1_isp_sd_subs_evt(struct v4l2_subdev *sd, struct v4l2_fh *fh,
+				  struct v4l2_event_subscription *sub)
+{
+	if (sub->type != V4L2_EVENT_FRAME_SYNC)
+		return -EINVAL;
+
+	/* Line number. For now only zero accepted. */
+	if (sub->id != 0)
+		return -EINVAL;
+
+	return v4l2_event_subscribe(fh, sub, 0, NULL);
+}
+
+static const struct v4l2_subdev_pad_ops rkisp1_isp_sd_pad_ops = {
+	.enum_mbus_code = rkisp1_isp_sd_enum_mbus_code,
+	.get_selection = rkisp1_isp_sd_get_selection,
+	.set_selection = rkisp1_isp_sd_set_selection,
+	.get_fmt = rkisp1_isp_sd_get_fmt,
+	.set_fmt = rkisp1_isp_sd_set_fmt,
+	.link_validate = rkisp1_subdev_fmt_link_validate,
+};
+
+static const struct media_entity_operations rkisp1_isp_sd_media_ops = {
+	.link_validate = rkisp1_subdev_link_validate,
+};
+
+static const struct v4l2_subdev_video_ops rkisp1_isp_sd_video_ops = {
+	.s_stream = rkisp1_isp_sd_s_stream,
+};
+
+static const struct v4l2_subdev_core_ops rkisp1_isp_core_ops = {
+	.subscribe_event = rkisp1_isp_sd_subs_evt,
+	.unsubscribe_event = v4l2_event_subdev_unsubscribe,
+	.s_power = rkisp1_isp_sd_s_power,
+};
+
+static struct v4l2_subdev_ops rkisp1_isp_sd_ops = {
+	.core = &rkisp1_isp_core_ops,
+	.video = &rkisp1_isp_sd_video_ops,
+	.pad = &rkisp1_isp_sd_pad_ops,
+};
+
+static void rkisp1_isp_sd_init_default_fmt(struct rkisp1_isp_subdev *isp_sd)
+{
+	struct v4l2_mbus_framefmt *in_frm = &isp_sd->in_frm;
+	struct v4l2_rect *in_crop = &isp_sd->in_crop;
+	struct v4l2_rect *out_crop = &isp_sd->out_crop;
+	struct ispsd_in_fmt *in_fmt = &isp_sd->in_fmt;
+	struct ispsd_out_fmt *out_fmt = &isp_sd->out_fmt;
+
+	*in_fmt = rkisp1_isp_input_formats[0];
+	in_frm->width = RKISP1_DEFAULT_WIDTH;
+	in_frm->height = RKISP1_DEFAULT_HEIGHT;
+	in_frm->code = in_fmt->mbus_code;
+
+	in_crop->width = in_frm->width;
+	in_crop->height = in_frm->height;
+	in_crop->left = 0;
+	in_crop->top = 0;
+
+	/* propagate to source */
+	*out_crop = *in_crop;
+	*out_fmt = rkisp1_isp_output_formats[0];
+}
+
+int rkisp1_register_isp_subdev(struct rkisp1_device *isp_dev,
+			       struct v4l2_device *v4l2_dev)
+{
+	struct rkisp1_isp_subdev *isp_sdev = &isp_dev->isp_sdev;
+	struct v4l2_subdev *sd = &isp_sdev->sd;
+	int ret;
+
+	v4l2_subdev_init(sd, &rkisp1_isp_sd_ops);
+	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
+	sd->entity.ops = &rkisp1_isp_sd_media_ops;
+	snprintf(sd->name, sizeof(sd->name), "rkisp1-isp-subdev");
+
+	isp_sdev->pads[RKISP1_ISP_PAD_SINK].flags =
+		MEDIA_PAD_FL_SINK | MEDIA_PAD_FL_MUST_CONNECT;
+	isp_sdev->pads[RKISP1_ISP_PAD_SINK_PARAMS].flags = MEDIA_PAD_FL_SINK;
+	isp_sdev->pads[RKISP1_ISP_PAD_SOURCE_PATH].flags = MEDIA_PAD_FL_SOURCE;
+	isp_sdev->pads[RKISP1_ISP_PAD_SOURCE_STATS].flags = MEDIA_PAD_FL_SOURCE;
+	sd->entity.function = MEDIA_ENT_F_V4L2_SUBDEV_UNKNOWN;
+	ret = media_entity_pads_init(&sd->entity, RKISP1_ISP_PAD_MAX,
+				     isp_sdev->pads);
+	if (ret < 0)
+		return ret;
+
+	sd->owner = THIS_MODULE;
+	v4l2_set_subdevdata(sd, isp_dev);
+
+	sd->grp_id = GRP_ID_ISP;
+	ret = v4l2_device_register_subdev(v4l2_dev, sd);
+	if (ret < 0) {
+		v4l2_err(sd, "Failed to register isp subdev\n");
+		goto err_cleanup_media_entity;
+	}
+
+	rkisp1_isp_sd_init_default_fmt(isp_sdev);
+
+	return 0;
+err_cleanup_media_entity:
+	media_entity_cleanup(&sd->entity);
+	return ret;
+}
+
+void rkisp1_unregister_isp_subdev(struct rkisp1_device *isp_dev)
+{
+	struct v4l2_subdev *sd = &isp_dev->isp_sdev.sd;
+
+	v4l2_device_unregister_subdev(sd);
+	media_entity_cleanup(&sd->entity);
+}
+
+/****************  Interrupter Handler ****************/
+
+void rkisp1_mipi_isr(unsigned int mis, struct rkisp1_device *dev)
+{
+	struct v4l2_device *v4l2_dev = &dev->v4l2_dev;
+	void __iomem *base = dev->base_addr;
+	u32 val;
+
+	writel(~0, base + CIF_MIPI_ICR);
+
+	/*
+	 * Disable DPHY errctrl interrupt, because this dphy
+	 * erctrl signal is asserted until the next changes
+	 * of line state. This time is may be too long and cpu
+	 * is hold in this interrupt.
+	 */
+	if (mis & CIF_MIPI_ERR_CTRL(0x0f)) {
+		val = readl(base + CIF_MIPI_IMSC);
+		writel(val & ~CIF_MIPI_ERR_CTRL(0x0f), base + CIF_MIPI_IMSC);
+		dev->isp_sdev.dphy_errctrl_disabled = true;
+	}
+
+	/*
+	 * Enable DPHY errctrl interrupt again, if mipi have receive
+	 * the whole frame without any error.
+	 */
+	if (mis == CIF_MIPI_FRAME_END) {
+		/*
+		 * Enable DPHY errctrl interrupt again, if mipi have receive
+		 * the whole frame without any error.
+		 */
+		if (dev->isp_sdev.dphy_errctrl_disabled) {
+			val = readl(base + CIF_MIPI_IMSC);
+			val |= CIF_MIPI_ERR_CTRL(0x0f);
+			writel(val, base + CIF_MIPI_IMSC);
+			dev->isp_sdev.dphy_errctrl_disabled = false;
+		}
+	} else {
+		v4l2_warn(v4l2_dev, "MIPI mis error: 0x%08x\n", mis);
+	}
+}
+
+void rkisp1_isp_isr(unsigned int isp_mis, struct rkisp1_device *dev)
+{
+	void __iomem *base = dev->base_addr;
+	unsigned int isp_mis_tmp = 0;
+	unsigned int isp_err = 0;
+
+	/* start edge of v_sync */
+	if (isp_mis & CIF_ISP_V_START) {
+		riksp1_isp_queue_event_sof(&dev->isp_sdev);
+
+		writel(CIF_ISP_V_START, base + CIF_ISP_ICR);
+		isp_mis_tmp = readl(base + CIF_ISP_MIS);
+		if (isp_mis_tmp & CIF_ISP_V_START)
+			v4l2_err(&dev->v4l2_dev, "isp icr v_statr err: 0x%x\n",
+				 isp_mis_tmp);
+	}
+
+	if ((isp_mis & CIF_ISP_PIC_SIZE_ERROR)) {
+		/* Clear pic_size_error */
+		writel(CIF_ISP_PIC_SIZE_ERROR, base + CIF_ISP_ICR);
+		isp_err = readl(base + CIF_ISP_ERR);
+		v4l2_err(&dev->v4l2_dev,
+				"CIF_ISP_PIC_SIZE_ERROR (0x%08x)", isp_err);
+		writel(isp_err, base + CIF_ISP_ERR_CLR);
+	} else if ((isp_mis & CIF_ISP_DATA_LOSS)) {
+		/* Clear data_loss */
+		writel(CIF_ISP_DATA_LOSS, base + CIF_ISP_ICR);
+		v4l2_err(&dev->v4l2_dev, "CIF_ISP_DATA_LOSS\n");
+		writel(CIF_ISP_DATA_LOSS, base + CIF_ISP_ICR);
+	}
+
+	/* sampled input frame is complete */
+	if (isp_mis & CIF_ISP_FRAME_IN) {
+		writel(CIF_ISP_FRAME_IN, base + CIF_ISP_ICR);
+		isp_mis_tmp = readl(base + CIF_ISP_MIS);
+		if (isp_mis_tmp & CIF_ISP_FRAME_IN)
+			v4l2_err(&dev->v4l2_dev, "isp icr frame_in err: 0x%x\n",
+				 isp_mis_tmp);
+	}
+
+	/* frame was completely put out */
+	if (isp_mis & CIF_ISP_FRAME) {
+		u32 isp_ris = 0;
+		/* Clear Frame In (ISP) */
+		writel(CIF_ISP_FRAME, base + CIF_ISP_ICR);
+		isp_mis_tmp = readl(base + CIF_ISP_MIS);
+		if (isp_mis_tmp & CIF_ISP_FRAME)
+			v4l2_err(&dev->v4l2_dev,
+				 "isp icr frame end err: 0x%x\n", isp_mis_tmp);
+
+		isp_ris = readl(base + CIF_ISP_RIS);
+		if (isp_ris & (CIF_ISP_AWB_DONE | CIF_ISP_AFM_FIN |
+				CIF_ISP_EXP_END | CIF_ISP_HIST_MEASURE_RDY))
+			rkisp1_stats_isr(&dev->stats_vdev, isp_ris);
+	}
+
+	/*
+	 * Then update changed configs. Some of them involve
+	 * lot of register writes. Do those only one per frame.
+	 * Do the updates in the order of the processing flow.
+	 */
+	rkisp1_params_isr(&dev->params_vdev, isp_mis);
+}
diff --git a/drivers/media/platform/rockchip/isp1/rkisp1.h b/drivers/media/platform/rockchip/isp1/rkisp1.h
new file mode 100644
index 000000000000..f0bbcbf0c827
--- /dev/null
+++ b/drivers/media/platform/rockchip/isp1/rkisp1.h
@@ -0,0 +1,105 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Rockchip isp1 driver
+ *
+ * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
+ */
+
+#ifndef _RKISP1_H
+#define _RKISP1_H
+
+#include <linux/platform_device.h>
+#include <media/v4l2-fwnode.h>
+#include "common.h"
+
+struct rkisp1_stream;
+
+/*
+ * struct ispsd_in_fmt - ISP intput-pad format
+ *
+ * Translate mbus_code to hardware format values
+ *
+ * @bus_width: used for parallel
+ */
+struct ispsd_in_fmt {
+	u32 mbus_code;
+	u8 fmt_type;
+	u32 mipi_dt;
+	u32 yuv_seq;
+	enum rkisp1_fmt_raw_pat_type bayer_pat;
+	u8 bus_width;
+};
+
+struct ispsd_out_fmt {
+	u32 mbus_code;
+	u8 fmt_type;
+};
+
+struct rkisp1_ie_config {
+	unsigned int effect;
+};
+
+enum rkisp1_isp_pad {
+	RKISP1_ISP_PAD_SINK,
+	RKISP1_ISP_PAD_SINK_PARAMS,
+	RKISP1_ISP_PAD_SOURCE_PATH,
+	RKISP1_ISP_PAD_SOURCE_STATS,
+	RKISP1_ISP_PAD_MAX
+};
+
+/*
+ * struct rkisp1_isp_subdev - ISP sub-device
+ *
+ * See Cropping regions of ISP in rkisp1.c for details
+ * @in_frm: input size, don't have to be equal to sensor size
+ * @in_fmt: intput format
+ * @in_crop: crop for sink pad
+ * @out_fmt: output format
+ * @out_crop: output size
+ *
+ * @dphy_errctrl_disabled: if dphy errctrl is disabled(avoid endless interrupt)
+ * @frm_sync_seq: frame sequence, to sync frame_id between video devices.
+ * @quantization: output quantization
+ */
+struct rkisp1_isp_subdev {
+	struct v4l2_subdev sd;
+	struct media_pad pads[RKISP1_ISP_PAD_MAX];
+	struct v4l2_ctrl_handler ctrl_handler;
+	struct v4l2_mbus_framefmt in_frm;
+	struct ispsd_in_fmt in_fmt;
+	struct v4l2_rect in_crop;
+	struct ispsd_out_fmt out_fmt;
+	struct v4l2_rect out_crop;
+	bool dphy_errctrl_disabled;
+	atomic_t frm_sync_seq;
+	enum v4l2_quantization quantization;
+};
+
+int rkisp1_register_isp_subdev(struct rkisp1_device *isp_dev,
+			       struct v4l2_device *v4l2_dev);
+
+void rkisp1_unregister_isp_subdev(struct rkisp1_device *isp_dev);
+
+void rkisp1_mipi_isr(unsigned int mipi_mis, struct rkisp1_device *dev);
+
+void rkisp1_isp_isr(unsigned int isp_mis, struct rkisp1_device *dev);
+
+static inline
+struct ispsd_out_fmt *rkisp1_get_ispsd_out_fmt(struct rkisp1_isp_subdev *isp_sdev)
+{
+	return &isp_sdev->out_fmt;
+}
+
+static inline
+struct ispsd_in_fmt *rkisp1_get_ispsd_in_fmt(struct rkisp1_isp_subdev *isp_sdev)
+{
+	return &isp_sdev->in_fmt;
+}
+
+static inline
+struct v4l2_rect *rkisp1_get_isp_sd_win(struct rkisp1_isp_subdev *isp_sdev)
+{
+	return &isp_sdev->out_crop;
+}
+
+#endif /* _RKISP1_H */
-- 
2.16.1