Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 1527 insertions, 0 deletions

diff --git a/drivers/media/i2c/ov5647.c b/drivers/media/i2c/ov5647.c
new file mode 100644
index 0000000000..8de398423b
--- /dev/null
+++ b/drivers/media/i2c/ov5647.c
@@ -0,0 +1,1527 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * A V4L2 driver for OmniVision OV5647 cameras.
+ *
+ * Based on Samsung S5K6AAFX SXGA 1/6" 1.3M CMOS Image Sensor driver
+ * Copyright (C) 2011 Sylwester Nawrocki <s.nawrocki@samsung.com>
+ *
+ * Based on Omnivision OV7670 Camera Driver
+ * Copyright (C) 2006-7 Jonathan Corbet <corbet@lwn.net>
+ *
+ * Copyright (C) 2016, Synopsys, Inc.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/gpio/consumer.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of_graph.h>
+#include <linux/pm_runtime.h>
+#include <linux/slab.h>
+#include <linux/videodev2.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-fwnode.h>
+#include <media/v4l2-image-sizes.h>
+#include <media/v4l2-mediabus.h>
+
+/*
+ * From the datasheet, "20ms after PWDN goes low or 20ms after RESETB goes
+ * high if reset is inserted after PWDN goes high, host can access sensor's
+ * SCCB to initialize sensor."
+ */
+#define PWDN_ACTIVE_DELAY_MS	20
+
+#define MIPI_CTRL00_CLOCK_LANE_GATE		BIT(5)
+#define MIPI_CTRL00_LINE_SYNC_ENABLE		BIT(4)
+#define MIPI_CTRL00_BUS_IDLE			BIT(2)
+#define MIPI_CTRL00_CLOCK_LANE_DISABLE		BIT(0)
+
+#define OV5647_SW_STANDBY		0x0100
+#define OV5647_SW_RESET			0x0103
+#define OV5647_REG_CHIPID_H		0x300a
+#define OV5647_REG_CHIPID_L		0x300b
+#define OV5640_REG_PAD_OUT		0x300d
+#define OV5647_REG_EXP_HI		0x3500
+#define OV5647_REG_EXP_MID		0x3501
+#define OV5647_REG_EXP_LO		0x3502
+#define OV5647_REG_AEC_AGC		0x3503
+#define OV5647_REG_GAIN_HI		0x350a
+#define OV5647_REG_GAIN_LO		0x350b
+#define OV5647_REG_VTS_HI		0x380e
+#define OV5647_REG_VTS_LO		0x380f
+#define OV5647_REG_FRAME_OFF_NUMBER	0x4202
+#define OV5647_REG_MIPI_CTRL00		0x4800
+#define OV5647_REG_MIPI_CTRL14		0x4814
+#define OV5647_REG_AWB			0x5001
+#define OV5647_REG_ISPCTRL3D		0x503d
+
+#define REG_TERM 0xfffe
+#define VAL_TERM 0xfe
+#define REG_DLY  0xffff
+
+/* OV5647 native and active pixel array size */
+#define OV5647_NATIVE_WIDTH		2624U
+#define OV5647_NATIVE_HEIGHT		1956U
+
+#define OV5647_PIXEL_ARRAY_LEFT		16U
+#define OV5647_PIXEL_ARRAY_TOP		16U
+#define OV5647_PIXEL_ARRAY_WIDTH	2592U
+#define OV5647_PIXEL_ARRAY_HEIGHT	1944U
+
+#define OV5647_VBLANK_MIN		4
+#define OV5647_VTS_MAX			32767
+
+#define OV5647_EXPOSURE_MIN		4
+#define OV5647_EXPOSURE_STEP		1
+#define OV5647_EXPOSURE_DEFAULT		1000
+#define OV5647_EXPOSURE_MAX		65535
+
+struct regval_list {
+	u16 addr;
+	u8 data;
+};
+
+struct ov5647_mode {
+	struct v4l2_mbus_framefmt	format;
+	struct v4l2_rect		crop;
+	u64				pixel_rate;
+	int				hts;
+	int				vts;
+	const struct regval_list	*reg_list;
+	unsigned int			num_regs;
+};
+
+struct ov5647 {
+	struct v4l2_subdev		sd;
+	struct media_pad		pad;
+	struct mutex			lock;
+	struct clk			*xclk;
+	struct gpio_desc		*pwdn;
+	bool				clock_ncont;
+	struct v4l2_ctrl_handler	ctrls;
+	const struct ov5647_mode	*mode;
+	struct v4l2_ctrl		*pixel_rate;
+	struct v4l2_ctrl		*hblank;
+	struct v4l2_ctrl		*vblank;
+	struct v4l2_ctrl		*exposure;
+	bool				streaming;
+};
+
+static inline struct ov5647 *to_sensor(struct v4l2_subdev *sd)
+{
+	return container_of(sd, struct ov5647, sd);
+}
+
+static const char * const ov5647_test_pattern_menu[] = {
+	"Disabled",
+	"Color Bars",
+	"Color Squares",
+	"Random Data",
+};
+
+static const u8 ov5647_test_pattern_val[] = {
+	0x00,	/* Disabled */
+	0x80,	/* Color Bars */
+	0x82,	/* Color Squares */
+	0x81,	/* Random Data */
+};
+
+static const struct regval_list sensor_oe_disable_regs[] = {
+	{0x3000, 0x00},
+	{0x3001, 0x00},
+	{0x3002, 0x00},
+};
+
+static const struct regval_list sensor_oe_enable_regs[] = {
+	{0x3000, 0x0f},
+	{0x3001, 0xff},
+	{0x3002, 0xe4},
+};
+
+static struct regval_list ov5647_2592x1944_10bpp[] = {
+	{0x0100, 0x00},
+	{0x0103, 0x01},
+	{0x3034, 0x1a},
+	{0x3035, 0x21},
+	{0x3036, 0x69},
+	{0x303c, 0x11},
+	{0x3106, 0xf5},
+	{0x3821, 0x06},
+	{0x3820, 0x00},
+	{0x3827, 0xec},
+	{0x370c, 0x03},
+	{0x3612, 0x5b},
+	{0x3618, 0x04},
+	{0x5000, 0x06},
+	{0x5002, 0x41},
+	{0x5003, 0x08},
+	{0x5a00, 0x08},
+	{0x3000, 0x00},
+	{0x3001, 0x00},
+	{0x3002, 0x00},
+	{0x3016, 0x08},
+	{0x3017, 0xe0},
+	{0x3018, 0x44},
+	{0x301c, 0xf8},
+	{0x301d, 0xf0},
+	{0x3a18, 0x00},
+	{0x3a19, 0xf8},
+	{0x3c01, 0x80},
+	{0x3b07, 0x0c},
+	{0x380c, 0x0b},
+	{0x380d, 0x1c},
+	{0x3814, 0x11},
+	{0x3815, 0x11},
+	{0x3708, 0x64},
+	{0x3709, 0x12},
+	{0x3808, 0x0a},
+	{0x3809, 0x20},
+	{0x380a, 0x07},
+	{0x380b, 0x98},
+	{0x3800, 0x00},
+	{0x3801, 0x00},
+	{0x3802, 0x00},
+	{0x3803, 0x00},
+	{0x3804, 0x0a},
+	{0x3805, 0x3f},
+	{0x3806, 0x07},
+	{0x3807, 0xa3},
+	{0x3811, 0x10},
+	{0x3813, 0x06},
+	{0x3630, 0x2e},
+	{0x3632, 0xe2},
+	{0x3633, 0x23},
+	{0x3634, 0x44},
+	{0x3636, 0x06},
+	{0x3620, 0x64},
+	{0x3621, 0xe0},
+	{0x3600, 0x37},
+	{0x3704, 0xa0},
+	{0x3703, 0x5a},
+	{0x3715, 0x78},
+	{0x3717, 0x01},
+	{0x3731, 0x02},
+	{0x370b, 0x60},
+	{0x3705, 0x1a},
+	{0x3f05, 0x02},
+	{0x3f06, 0x10},
+	{0x3f01, 0x0a},
+	{0x3a08, 0x01},
+	{0x3a09, 0x28},
+	{0x3a0a, 0x00},
+	{0x3a0b, 0xf6},
+	{0x3a0d, 0x08},
+	{0x3a0e, 0x06},
+	{0x3a0f, 0x58},
+	{0x3a10, 0x50},
+	{0x3a1b, 0x58},
+	{0x3a1e, 0x50},
+	{0x3a11, 0x60},
+	{0x3a1f, 0x28},
+	{0x4001, 0x02},
+	{0x4004, 0x04},
+	{0x4000, 0x09},
+	{0x4837, 0x19},
+	{0x4800, 0x24},
+	{0x3503, 0x03},
+	{0x0100, 0x01},
+};
+
+static struct regval_list ov5647_1080p30_10bpp[] = {
+	{0x0100, 0x00},
+	{0x0103, 0x01},
+	{0x3034, 0x1a},
+	{0x3035, 0x21},
+	{0x3036, 0x62},
+	{0x303c, 0x11},
+	{0x3106, 0xf5},
+	{0x3821, 0x06},
+	{0x3820, 0x00},
+	{0x3827, 0xec},
+	{0x370c, 0x03},
+	{0x3612, 0x5b},
+	{0x3618, 0x04},
+	{0x5000, 0x06},
+	{0x5002, 0x41},
+	{0x5003, 0x08},
+	{0x5a00, 0x08},
+	{0x3000, 0x00},
+	{0x3001, 0x00},
+	{0x3002, 0x00},
+	{0x3016, 0x08},
+	{0x3017, 0xe0},
+	{0x3018, 0x44},
+	{0x301c, 0xf8},
+	{0x301d, 0xf0},
+	{0x3a18, 0x00},
+	{0x3a19, 0xf8},
+	{0x3c01, 0x80},
+	{0x3b07, 0x0c},
+	{0x380c, 0x09},
+	{0x380d, 0x70},
+	{0x3814, 0x11},
+	{0x3815, 0x11},
+	{0x3708, 0x64},
+	{0x3709, 0x12},
+	{0x3808, 0x07},
+	{0x3809, 0x80},
+	{0x380a, 0x04},
+	{0x380b, 0x38},
+	{0x3800, 0x01},
+	{0x3801, 0x5c},
+	{0x3802, 0x01},
+	{0x3803, 0xb2},
+	{0x3804, 0x08},
+	{0x3805, 0xe3},
+	{0x3806, 0x05},
+	{0x3807, 0xf1},
+	{0x3811, 0x04},
+	{0x3813, 0x02},
+	{0x3630, 0x2e},
+	{0x3632, 0xe2},
+	{0x3633, 0x23},
+	{0x3634, 0x44},
+	{0x3636, 0x06},
+	{0x3620, 0x64},
+	{0x3621, 0xe0},
+	{0x3600, 0x37},
+	{0x3704, 0xa0},
+	{0x3703, 0x5a},
+	{0x3715, 0x78},
+	{0x3717, 0x01},
+	{0x3731, 0x02},
+	{0x370b, 0x60},
+	{0x3705, 0x1a},
+	{0x3f05, 0x02},
+	{0x3f06, 0x10},
+	{0x3f01, 0x0a},
+	{0x3a08, 0x01},
+	{0x3a09, 0x4b},
+	{0x3a0a, 0x01},
+	{0x3a0b, 0x13},
+	{0x3a0d, 0x04},
+	{0x3a0e, 0x03},
+	{0x3a0f, 0x58},
+	{0x3a10, 0x50},
+	{0x3a1b, 0x58},
+	{0x3a1e, 0x50},
+	{0x3a11, 0x60},
+	{0x3a1f, 0x28},
+	{0x4001, 0x02},
+	{0x4004, 0x04},
+	{0x4000, 0x09},
+	{0x4837, 0x19},
+	{0x4800, 0x34},
+	{0x3503, 0x03},
+	{0x0100, 0x01},
+};
+
+static struct regval_list ov5647_2x2binned_10bpp[] = {
+	{0x0100, 0x00},
+	{0x0103, 0x01},
+	{0x3034, 0x1a},
+	{0x3035, 0x21},
+	{0x3036, 0x62},
+	{0x303c, 0x11},
+	{0x3106, 0xf5},
+	{0x3827, 0xec},
+	{0x370c, 0x03},
+	{0x3612, 0x59},
+	{0x3618, 0x00},
+	{0x5000, 0x06},
+	{0x5002, 0x41},
+	{0x5003, 0x08},
+	{0x5a00, 0x08},
+	{0x3000, 0x00},
+	{0x3001, 0x00},
+	{0x3002, 0x00},
+	{0x3016, 0x08},
+	{0x3017, 0xe0},
+	{0x3018, 0x44},
+	{0x301c, 0xf8},
+	{0x301d, 0xf0},
+	{0x3a18, 0x00},
+	{0x3a19, 0xf8},
+	{0x3c01, 0x80},
+	{0x3b07, 0x0c},
+	{0x3800, 0x00},
+	{0x3801, 0x00},
+	{0x3802, 0x00},
+	{0x3803, 0x00},
+	{0x3804, 0x0a},
+	{0x3805, 0x3f},
+	{0x3806, 0x07},
+	{0x3807, 0xa3},
+	{0x3808, 0x05},
+	{0x3809, 0x10},
+	{0x380a, 0x03},
+	{0x380b, 0xcc},
+	{0x380c, 0x07},
+	{0x380d, 0x68},
+	{0x3811, 0x0c},
+	{0x3813, 0x06},
+	{0x3814, 0x31},
+	{0x3815, 0x31},
+	{0x3630, 0x2e},
+	{0x3632, 0xe2},
+	{0x3633, 0x23},
+	{0x3634, 0x44},
+	{0x3636, 0x06},
+	{0x3620, 0x64},
+	{0x3621, 0xe0},
+	{0x3600, 0x37},
+	{0x3704, 0xa0},
+	{0x3703, 0x5a},
+	{0x3715, 0x78},
+	{0x3717, 0x01},
+	{0x3731, 0x02},
+	{0x370b, 0x60},
+	{0x3705, 0x1a},
+	{0x3f05, 0x02},
+	{0x3f06, 0x10},
+	{0x3f01, 0x0a},
+	{0x3a08, 0x01},
+	{0x3a09, 0x28},
+	{0x3a0a, 0x00},
+	{0x3a0b, 0xf6},
+	{0x3a0d, 0x08},
+	{0x3a0e, 0x06},
+	{0x3a0f, 0x58},
+	{0x3a10, 0x50},
+	{0x3a1b, 0x58},
+	{0x3a1e, 0x50},
+	{0x3a11, 0x60},
+	{0x3a1f, 0x28},
+	{0x4001, 0x02},
+	{0x4004, 0x04},
+	{0x4000, 0x09},
+	{0x4837, 0x16},
+	{0x4800, 0x24},
+	{0x3503, 0x03},
+	{0x3820, 0x41},
+	{0x3821, 0x07},
+	{0x350a, 0x00},
+	{0x350b, 0x10},
+	{0x3500, 0x00},
+	{0x3501, 0x1a},
+	{0x3502, 0xf0},
+	{0x3212, 0xa0},
+	{0x0100, 0x01},
+};
+
+static struct regval_list ov5647_640x480_10bpp[] = {
+	{0x0100, 0x00},
+	{0x0103, 0x01},
+	{0x3035, 0x11},
+	{0x3036, 0x46},
+	{0x303c, 0x11},
+	{0x3821, 0x07},
+	{0x3820, 0x41},
+	{0x370c, 0x03},
+	{0x3612, 0x59},
+	{0x3618, 0x00},
+	{0x5000, 0x06},
+	{0x5003, 0x08},
+	{0x5a00, 0x08},
+	{0x3000, 0xff},
+	{0x3001, 0xff},
+	{0x3002, 0xff},
+	{0x301d, 0xf0},
+	{0x3a18, 0x00},
+	{0x3a19, 0xf8},
+	{0x3c01, 0x80},
+	{0x3b07, 0x0c},
+	{0x380c, 0x07},
+	{0x380d, 0x3c},
+	{0x3814, 0x35},
+	{0x3815, 0x35},
+	{0x3708, 0x64},
+	{0x3709, 0x52},
+	{0x3808, 0x02},
+	{0x3809, 0x80},
+	{0x380a, 0x01},
+	{0x380b, 0xe0},
+	{0x3800, 0x00},
+	{0x3801, 0x10},
+	{0x3802, 0x00},
+	{0x3803, 0x00},
+	{0x3804, 0x0a},
+	{0x3805, 0x2f},
+	{0x3806, 0x07},
+	{0x3807, 0x9f},
+	{0x3630, 0x2e},
+	{0x3632, 0xe2},
+	{0x3633, 0x23},
+	{0x3634, 0x44},
+	{0x3620, 0x64},
+	{0x3621, 0xe0},
+	{0x3600, 0x37},
+	{0x3704, 0xa0},
+	{0x3703, 0x5a},
+	{0x3715, 0x78},
+	{0x3717, 0x01},
+	{0x3731, 0x02},
+	{0x370b, 0x60},
+	{0x3705, 0x1a},
+	{0x3f05, 0x02},
+	{0x3f06, 0x10},
+	{0x3f01, 0x0a},
+	{0x3a08, 0x01},
+	{0x3a09, 0x2e},
+	{0x3a0a, 0x00},
+	{0x3a0b, 0xfb},
+	{0x3a0d, 0x02},
+	{0x3a0e, 0x01},
+	{0x3a0f, 0x58},
+	{0x3a10, 0x50},
+	{0x3a1b, 0x58},
+	{0x3a1e, 0x50},
+	{0x3a11, 0x60},
+	{0x3a1f, 0x28},
+	{0x4001, 0x02},
+	{0x4004, 0x02},
+	{0x4000, 0x09},
+	{0x3000, 0x00},
+	{0x3001, 0x00},
+	{0x3002, 0x00},
+	{0x3017, 0xe0},
+	{0x301c, 0xfc},
+	{0x3636, 0x06},
+	{0x3016, 0x08},
+	{0x3827, 0xec},
+	{0x3018, 0x44},
+	{0x3035, 0x21},
+	{0x3106, 0xf5},
+	{0x3034, 0x1a},
+	{0x301c, 0xf8},
+	{0x4800, 0x34},
+	{0x3503, 0x03},
+	{0x0100, 0x01},
+};
+
+static const struct ov5647_mode ov5647_modes[] = {
+	/* 2592x1944 full resolution full FOV 10-bit mode. */
+	{
+		.format = {
+			.code		= MEDIA_BUS_FMT_SBGGR10_1X10,
+			.colorspace	= V4L2_COLORSPACE_SRGB,
+			.field		= V4L2_FIELD_NONE,
+			.width		= 2592,
+			.height		= 1944
+		},
+		.crop = {
+			.left		= OV5647_PIXEL_ARRAY_LEFT,
+			.top		= OV5647_PIXEL_ARRAY_TOP,
+			.width		= 2592,
+			.height		= 1944
+		},
+		.pixel_rate	= 87500000,
+		.hts		= 2844,
+		.vts		= 0x7b0,
+		.reg_list	= ov5647_2592x1944_10bpp,
+		.num_regs	= ARRAY_SIZE(ov5647_2592x1944_10bpp)
+	},
+	/* 1080p30 10-bit mode. Full resolution centre-cropped down to 1080p. */
+	{
+		.format = {
+			.code		= MEDIA_BUS_FMT_SBGGR10_1X10,
+			.colorspace	= V4L2_COLORSPACE_SRGB,
+			.field		= V4L2_FIELD_NONE,
+			.width		= 1920,
+			.height		= 1080
+		},
+		.crop = {
+			.left		= 348 + OV5647_PIXEL_ARRAY_LEFT,
+			.top		= 434 + OV5647_PIXEL_ARRAY_TOP,
+			.width		= 1928,
+			.height		= 1080,
+		},
+		.pixel_rate	= 81666700,
+		.hts		= 2416,
+		.vts		= 0x450,
+		.reg_list	= ov5647_1080p30_10bpp,
+		.num_regs	= ARRAY_SIZE(ov5647_1080p30_10bpp)
+	},
+	/* 2x2 binned full FOV 10-bit mode. */
+	{
+		.format = {
+			.code		= MEDIA_BUS_FMT_SBGGR10_1X10,
+			.colorspace	= V4L2_COLORSPACE_SRGB,
+			.field		= V4L2_FIELD_NONE,
+			.width		= 1296,
+			.height		= 972
+		},
+		.crop = {
+			.left		= OV5647_PIXEL_ARRAY_LEFT,
+			.top		= OV5647_PIXEL_ARRAY_TOP,
+			.width		= 2592,
+			.height		= 1944,
+		},
+		.pixel_rate	= 81666700,
+		.hts		= 1896,
+		.vts		= 0x59b,
+		.reg_list	= ov5647_2x2binned_10bpp,
+		.num_regs	= ARRAY_SIZE(ov5647_2x2binned_10bpp)
+	},
+	/* 10-bit VGA full FOV 60fps. 2x2 binned and subsampled down to VGA. */
+	{
+		.format = {
+			.code		= MEDIA_BUS_FMT_SBGGR10_1X10,
+			.colorspace	= V4L2_COLORSPACE_SRGB,
+			.field		= V4L2_FIELD_NONE,
+			.width		= 640,
+			.height		= 480
+		},
+		.crop = {
+			.left		= 16 + OV5647_PIXEL_ARRAY_LEFT,
+			.top		= OV5647_PIXEL_ARRAY_TOP,
+			.width		= 2560,
+			.height		= 1920,
+		},
+		.pixel_rate	= 55000000,
+		.hts		= 1852,
+		.vts		= 0x1f8,
+		.reg_list	= ov5647_640x480_10bpp,
+		.num_regs	= ARRAY_SIZE(ov5647_640x480_10bpp)
+	},
+};
+
+/* Default sensor mode is 2x2 binned 640x480 SBGGR10_1X10. */
+#define OV5647_DEFAULT_MODE	(&ov5647_modes[3])
+#define OV5647_DEFAULT_FORMAT	(ov5647_modes[3].format)
+
+static int ov5647_write16(struct v4l2_subdev *sd, u16 reg, u16 val)
+{
+	unsigned char data[4] = { reg >> 8, reg & 0xff, val >> 8, val & 0xff};
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	int ret;
+
+	ret = i2c_master_send(client, data, 4);
+	if (ret < 0) {
+		dev_dbg(&client->dev, "%s: i2c write error, reg: %x\n",
+			__func__, reg);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int ov5647_write(struct v4l2_subdev *sd, u16 reg, u8 val)
+{
+	unsigned char data[3] = { reg >> 8, reg & 0xff, val};
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	int ret;
+
+	ret = i2c_master_send(client, data, 3);
+	if (ret < 0) {
+		dev_dbg(&client->dev, "%s: i2c write error, reg: %x\n",
+				__func__, reg);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int ov5647_read(struct v4l2_subdev *sd, u16 reg, u8 *val)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	u8 buf[2] = { reg >> 8, reg & 0xff };
+	struct i2c_msg msg[2];
+	int ret;
+
+	msg[0].addr = client->addr;
+	msg[0].flags = client->flags;
+	msg[0].buf = buf;
+	msg[0].len = sizeof(buf);
+
+	msg[1].addr = client->addr;
+	msg[1].flags = client->flags | I2C_M_RD;
+	msg[1].buf = buf;
+	msg[1].len = 1;
+
+	ret = i2c_transfer(client->adapter, msg, 2);
+	if (ret != 2) {
+		dev_err(&client->dev, "%s: i2c read error, reg: %x = %d\n",
+			__func__, reg, ret);
+		return ret >= 0 ? -EINVAL : ret;
+	}
+
+	*val = buf[0];
+
+	return 0;
+}
+
+static int ov5647_write_array(struct v4l2_subdev *sd,
+			      const struct regval_list *regs, int array_size)
+{
+	int i, ret;
+
+	for (i = 0; i < array_size; i++) {
+		ret = ov5647_write(sd, regs[i].addr, regs[i].data);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int ov5647_set_virtual_channel(struct v4l2_subdev *sd, int channel)
+{
+	u8 channel_id;
+	int ret;
+
+	ret = ov5647_read(sd, OV5647_REG_MIPI_CTRL14, &channel_id);
+	if (ret < 0)
+		return ret;
+
+	channel_id &= ~(3 << 6);
+
+	return ov5647_write(sd, OV5647_REG_MIPI_CTRL14,
+			    channel_id | (channel << 6));
+}
+
+static int ov5647_set_mode(struct v4l2_subdev *sd)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct ov5647 *sensor = to_sensor(sd);
+	u8 resetval, rdval;
+	int ret;
+
+	ret = ov5647_read(sd, OV5647_SW_STANDBY, &rdval);
+	if (ret < 0)
+		return ret;
+
+	ret = ov5647_write_array(sd, sensor->mode->reg_list,
+				 sensor->mode->num_regs);
+	if (ret < 0) {
+		dev_err(&client->dev, "write sensor default regs error\n");
+		return ret;
+	}
+
+	ret = ov5647_set_virtual_channel(sd, 0);
+	if (ret < 0)
+		return ret;
+
+	ret = ov5647_read(sd, OV5647_SW_STANDBY, &resetval);
+	if (ret < 0)
+		return ret;
+
+	if (!(resetval & 0x01)) {
+		dev_err(&client->dev, "Device was in SW standby");
+		ret = ov5647_write(sd, OV5647_SW_STANDBY, 0x01);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int ov5647_stream_on(struct v4l2_subdev *sd)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct ov5647 *sensor = to_sensor(sd);
+	u8 val = MIPI_CTRL00_BUS_IDLE;
+	int ret;
+
+	ret = ov5647_set_mode(sd);
+	if (ret) {
+		dev_err(&client->dev, "Failed to program sensor mode: %d\n", ret);
+		return ret;
+	}
+
+	/* Apply customized values from user when stream starts. */
+	ret =  __v4l2_ctrl_handler_setup(sd->ctrl_handler);
+	if (ret)
+		return ret;
+
+	if (sensor->clock_ncont)
+		val |= MIPI_CTRL00_CLOCK_LANE_GATE |
+		       MIPI_CTRL00_LINE_SYNC_ENABLE;
+
+	ret = ov5647_write(sd, OV5647_REG_MIPI_CTRL00, val);
+	if (ret < 0)
+		return ret;
+
+	ret = ov5647_write(sd, OV5647_REG_FRAME_OFF_NUMBER, 0x00);
+	if (ret < 0)
+		return ret;
+
+	return ov5647_write(sd, OV5640_REG_PAD_OUT, 0x00);
+}
+
+static int ov5647_stream_off(struct v4l2_subdev *sd)
+{
+	int ret;
+
+	ret = ov5647_write(sd, OV5647_REG_MIPI_CTRL00,
+			   MIPI_CTRL00_CLOCK_LANE_GATE | MIPI_CTRL00_BUS_IDLE |
+			   MIPI_CTRL00_CLOCK_LANE_DISABLE);
+	if (ret < 0)
+		return ret;
+
+	ret = ov5647_write(sd, OV5647_REG_FRAME_OFF_NUMBER, 0x0f);
+	if (ret < 0)
+		return ret;
+
+	return ov5647_write(sd, OV5640_REG_PAD_OUT, 0x01);
+}
+
+static int ov5647_power_on(struct device *dev)
+{
+	struct ov5647 *sensor = dev_get_drvdata(dev);
+	int ret;
+
+	dev_dbg(dev, "OV5647 power on\n");
+
+	if (sensor->pwdn) {
+		gpiod_set_value_cansleep(sensor->pwdn, 0);
+		msleep(PWDN_ACTIVE_DELAY_MS);
+	}
+
+	ret = clk_prepare_enable(sensor->xclk);
+	if (ret < 0) {
+		dev_err(dev, "clk prepare enable failed\n");
+		goto error_pwdn;
+	}
+
+	ret = ov5647_write_array(&sensor->sd, sensor_oe_enable_regs,
+				 ARRAY_SIZE(sensor_oe_enable_regs));
+	if (ret < 0) {
+		dev_err(dev, "write sensor_oe_enable_regs error\n");
+		goto error_clk_disable;
+	}
+
+	/* Stream off to coax lanes into LP-11 state. */
+	ret = ov5647_stream_off(&sensor->sd);
+	if (ret < 0) {
+		dev_err(dev, "camera not available, check power\n");
+		goto error_clk_disable;
+	}
+
+	return 0;
+
+error_clk_disable:
+	clk_disable_unprepare(sensor->xclk);
+error_pwdn:
+	gpiod_set_value_cansleep(sensor->pwdn, 1);
+
+	return ret;
+}
+
+static int ov5647_power_off(struct device *dev)
+{
+	struct ov5647 *sensor = dev_get_drvdata(dev);
+	u8 rdval;
+	int ret;
+
+	dev_dbg(dev, "OV5647 power off\n");
+
+	ret = ov5647_write_array(&sensor->sd, sensor_oe_disable_regs,
+				 ARRAY_SIZE(sensor_oe_disable_regs));
+	if (ret < 0)
+		dev_dbg(dev, "disable oe failed\n");
+
+	/* Enter software standby */
+	ret = ov5647_read(&sensor->sd, OV5647_SW_STANDBY, &rdval);
+	if (ret < 0)
+		dev_dbg(dev, "software standby failed\n");
+
+	rdval &= ~0x01;
+	ret = ov5647_write(&sensor->sd, OV5647_SW_STANDBY, rdval);
+	if (ret < 0)
+		dev_dbg(dev, "software standby failed\n");
+
+	clk_disable_unprepare(sensor->xclk);
+	gpiod_set_value_cansleep(sensor->pwdn, 1);
+
+	return 0;
+}
+
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+static int ov5647_sensor_get_register(struct v4l2_subdev *sd,
+				      struct v4l2_dbg_register *reg)
+{
+	int ret;
+	u8 val;
+
+	ret = ov5647_read(sd, reg->reg & 0xff, &val);
+	if (ret < 0)
+		return ret;
+
+	reg->val = val;
+	reg->size = 1;
+
+	return 0;
+}
+
+static int ov5647_sensor_set_register(struct v4l2_subdev *sd,
+				      const struct v4l2_dbg_register *reg)
+{
+	return ov5647_write(sd, reg->reg & 0xff, reg->val & 0xff);
+}
+#endif
+
+/* Subdev core operations registration */
+static const struct v4l2_subdev_core_ops ov5647_subdev_core_ops = {
+	.subscribe_event	= v4l2_ctrl_subdev_subscribe_event,
+	.unsubscribe_event	= v4l2_event_subdev_unsubscribe,
+#ifdef CONFIG_VIDEO_ADV_DEBUG
+	.g_register		= ov5647_sensor_get_register,
+	.s_register		= ov5647_sensor_set_register,
+#endif
+};
+
+static const struct v4l2_rect *
+__ov5647_get_pad_crop(struct ov5647 *ov5647,
+		      struct v4l2_subdev_state *sd_state,
+		      unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+	switch (which) {
+	case V4L2_SUBDEV_FORMAT_TRY:
+		return v4l2_subdev_get_try_crop(&ov5647->sd, sd_state, pad);
+	case V4L2_SUBDEV_FORMAT_ACTIVE:
+		return &ov5647->mode->crop;
+	}
+
+	return NULL;
+}
+
+static int ov5647_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	struct ov5647 *sensor = to_sensor(sd);
+	int ret;
+
+	mutex_lock(&sensor->lock);
+	if (sensor->streaming == enable) {
+		mutex_unlock(&sensor->lock);
+		return 0;
+	}
+
+	if (enable) {
+		ret = pm_runtime_resume_and_get(&client->dev);
+		if (ret < 0)
+			goto error_unlock;
+
+		ret = ov5647_stream_on(sd);
+		if (ret < 0) {
+			dev_err(&client->dev, "stream start failed: %d\n", ret);
+			goto error_pm;
+		}
+	} else {
+		ret = ov5647_stream_off(sd);
+		if (ret < 0) {
+			dev_err(&client->dev, "stream stop failed: %d\n", ret);
+			goto error_pm;
+		}
+		pm_runtime_put(&client->dev);
+	}
+
+	sensor->streaming = enable;
+	mutex_unlock(&sensor->lock);
+
+	return 0;
+
+error_pm:
+	pm_runtime_put(&client->dev);
+error_unlock:
+	mutex_unlock(&sensor->lock);
+
+	return ret;
+}
+
+static const struct v4l2_subdev_video_ops ov5647_subdev_video_ops = {
+	.s_stream =		ov5647_s_stream,
+};
+
+static int ov5647_enum_mbus_code(struct v4l2_subdev *sd,
+				 struct v4l2_subdev_state *sd_state,
+				 struct v4l2_subdev_mbus_code_enum *code)
+{
+	if (code->index > 0)
+		return -EINVAL;
+
+	code->code = MEDIA_BUS_FMT_SBGGR10_1X10;
+
+	return 0;
+}
+
+static int ov5647_enum_frame_size(struct v4l2_subdev *sd,
+				  struct v4l2_subdev_state *sd_state,
+				  struct v4l2_subdev_frame_size_enum *fse)
+{
+	const struct v4l2_mbus_framefmt *fmt;
+
+	if (fse->code != MEDIA_BUS_FMT_SBGGR10_1X10 ||
+	    fse->index >= ARRAY_SIZE(ov5647_modes))
+		return -EINVAL;
+
+	fmt = &ov5647_modes[fse->index].format;
+	fse->min_width = fmt->width;
+	fse->max_width = fmt->width;
+	fse->min_height = fmt->height;
+	fse->max_height = fmt->height;
+
+	return 0;
+}
+
+static int ov5647_get_pad_fmt(struct v4l2_subdev *sd,
+			      struct v4l2_subdev_state *sd_state,
+			      struct v4l2_subdev_format *format)
+{
+	struct v4l2_mbus_framefmt *fmt = &format->format;
+	const struct v4l2_mbus_framefmt *sensor_format;
+	struct ov5647 *sensor = to_sensor(sd);
+
+	mutex_lock(&sensor->lock);
+	switch (format->which) {
+	case V4L2_SUBDEV_FORMAT_TRY:
+		sensor_format = v4l2_subdev_get_try_format(sd, sd_state,
+							   format->pad);
+		break;
+	default:
+		sensor_format = &sensor->mode->format;
+		break;
+	}
+
+	*fmt = *sensor_format;
+	mutex_unlock(&sensor->lock);
+
+	return 0;
+}
+
+static int ov5647_set_pad_fmt(struct v4l2_subdev *sd,
+			      struct v4l2_subdev_state *sd_state,
+			      struct v4l2_subdev_format *format)
+{
+	struct v4l2_mbus_framefmt *fmt = &format->format;
+	struct ov5647 *sensor = to_sensor(sd);
+	const struct ov5647_mode *mode;
+
+	mode = v4l2_find_nearest_size(ov5647_modes, ARRAY_SIZE(ov5647_modes),
+				      format.width, format.height,
+				      fmt->width, fmt->height);
+
+	/* Update the sensor mode and apply at it at streamon time. */
+	mutex_lock(&sensor->lock);
+	if (format->which == V4L2_SUBDEV_FORMAT_TRY) {
+		*v4l2_subdev_get_try_format(sd, sd_state, format->pad) = mode->format;
+	} else {
+		int exposure_max, exposure_def;
+		int hblank, vblank;
+
+		sensor->mode = mode;
+		__v4l2_ctrl_modify_range(sensor->pixel_rate, mode->pixel_rate,
+					 mode->pixel_rate, 1, mode->pixel_rate);
+
+		hblank = mode->hts - mode->format.width;
+		__v4l2_ctrl_modify_range(sensor->hblank, hblank, hblank, 1,
+					 hblank);
+
+		vblank = mode->vts - mode->format.height;
+		__v4l2_ctrl_modify_range(sensor->vblank, OV5647_VBLANK_MIN,
+					 OV5647_VTS_MAX - mode->format.height,
+					 1, vblank);
+		__v4l2_ctrl_s_ctrl(sensor->vblank, vblank);
+
+		exposure_max = mode->vts - 4;
+		exposure_def = min(exposure_max, OV5647_EXPOSURE_DEFAULT);
+		__v4l2_ctrl_modify_range(sensor->exposure,
+					 sensor->exposure->minimum,
+					 exposure_max, sensor->exposure->step,
+					 exposure_def);
+	}
+	*fmt = mode->format;
+	mutex_unlock(&sensor->lock);
+
+	return 0;
+}
+
+static int ov5647_get_selection(struct v4l2_subdev *sd,
+				struct v4l2_subdev_state *sd_state,
+				struct v4l2_subdev_selection *sel)
+{
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP: {
+		struct ov5647 *sensor = to_sensor(sd);
+
+		mutex_lock(&sensor->lock);
+		sel->r = *__ov5647_get_pad_crop(sensor, sd_state, sel->pad,
+						sel->which);
+		mutex_unlock(&sensor->lock);
+
+		return 0;
+	}
+
+	case V4L2_SEL_TGT_NATIVE_SIZE:
+		sel->r.top = 0;
+		sel->r.left = 0;
+		sel->r.width = OV5647_NATIVE_WIDTH;
+		sel->r.height = OV5647_NATIVE_HEIGHT;
+
+		return 0;
+
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+		sel->r.top = OV5647_PIXEL_ARRAY_TOP;
+		sel->r.left = OV5647_PIXEL_ARRAY_LEFT;
+		sel->r.width = OV5647_PIXEL_ARRAY_WIDTH;
+		sel->r.height = OV5647_PIXEL_ARRAY_HEIGHT;
+
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static const struct v4l2_subdev_pad_ops ov5647_subdev_pad_ops = {
+	.enum_mbus_code		= ov5647_enum_mbus_code,
+	.enum_frame_size	= ov5647_enum_frame_size,
+	.set_fmt		= ov5647_set_pad_fmt,
+	.get_fmt		= ov5647_get_pad_fmt,
+	.get_selection		= ov5647_get_selection,
+};
+
+static const struct v4l2_subdev_ops ov5647_subdev_ops = {
+	.core		= &ov5647_subdev_core_ops,
+	.video		= &ov5647_subdev_video_ops,
+	.pad		= &ov5647_subdev_pad_ops,
+};
+
+static int ov5647_detect(struct v4l2_subdev *sd)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	u8 read;
+	int ret;
+
+	ret = ov5647_write(sd, OV5647_SW_RESET, 0x01);
+	if (ret < 0)
+		return ret;
+
+	ret = ov5647_read(sd, OV5647_REG_CHIPID_H, &read);
+	if (ret < 0)
+		return ret;
+
+	if (read != 0x56) {
+		dev_err(&client->dev, "ID High expected 0x56 got %x", read);
+		return -ENODEV;
+	}
+
+	ret = ov5647_read(sd, OV5647_REG_CHIPID_L, &read);
+	if (ret < 0)
+		return ret;
+
+	if (read != 0x47) {
+		dev_err(&client->dev, "ID Low expected 0x47 got %x", read);
+		return -ENODEV;
+	}
+
+	return ov5647_write(sd, OV5647_SW_RESET, 0x00);
+}
+
+static int ov5647_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+	struct v4l2_mbus_framefmt *format =
+				v4l2_subdev_get_try_format(sd, fh->state, 0);
+	struct v4l2_rect *crop = v4l2_subdev_get_try_crop(sd, fh->state, 0);
+
+	crop->left = OV5647_PIXEL_ARRAY_LEFT;
+	crop->top = OV5647_PIXEL_ARRAY_TOP;
+	crop->width = OV5647_PIXEL_ARRAY_WIDTH;
+	crop->height = OV5647_PIXEL_ARRAY_HEIGHT;
+
+	*format = OV5647_DEFAULT_FORMAT;
+
+	return 0;
+}
+
+static const struct v4l2_subdev_internal_ops ov5647_subdev_internal_ops = {
+	.open = ov5647_open,
+};
+
+static int ov5647_s_auto_white_balance(struct v4l2_subdev *sd, u32 val)
+{
+	return ov5647_write(sd, OV5647_REG_AWB, val ? 1 : 0);
+}
+
+static int ov5647_s_autogain(struct v4l2_subdev *sd, u32 val)
+{
+	int ret;
+	u8 reg;
+
+	/* Non-zero turns on AGC by clearing bit 1.*/
+	ret = ov5647_read(sd, OV5647_REG_AEC_AGC, &reg);
+	if (ret)
+		return ret;
+
+	return ov5647_write(sd, OV5647_REG_AEC_AGC, val ? reg & ~BIT(1)
+							: reg | BIT(1));
+}
+
+static int ov5647_s_exposure_auto(struct v4l2_subdev *sd, u32 val)
+{
+	int ret;
+	u8 reg;
+
+	/*
+	 * Everything except V4L2_EXPOSURE_MANUAL turns on AEC by
+	 * clearing bit 0.
+	 */
+	ret = ov5647_read(sd, OV5647_REG_AEC_AGC, &reg);
+	if (ret)
+		return ret;
+
+	return ov5647_write(sd, OV5647_REG_AEC_AGC,
+			    val == V4L2_EXPOSURE_MANUAL ? reg | BIT(0)
+							: reg & ~BIT(0));
+}
+
+static int ov5647_s_analogue_gain(struct v4l2_subdev *sd, u32 val)
+{
+	int ret;
+
+	/* 10 bits of gain, 2 in the high register. */
+	ret = ov5647_write(sd, OV5647_REG_GAIN_HI, (val >> 8) & 3);
+	if (ret)
+		return ret;
+
+	return ov5647_write(sd, OV5647_REG_GAIN_LO, val & 0xff);
+}
+
+static int ov5647_s_exposure(struct v4l2_subdev *sd, u32 val)
+{
+	int ret;
+
+	/*
+	 * Sensor has 20 bits, but the bottom 4 bits are fractions of a line
+	 * which we leave as zero (and don't receive in "val").
+	 */
+	ret = ov5647_write(sd, OV5647_REG_EXP_HI, (val >> 12) & 0xf);
+	if (ret)
+		return ret;
+
+	ret = ov5647_write(sd, OV5647_REG_EXP_MID, (val >> 4) & 0xff);
+	if (ret)
+		return ret;
+
+	return ov5647_write(sd, OV5647_REG_EXP_LO, (val & 0xf) << 4);
+}
+
+static int ov5647_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct ov5647 *sensor = container_of(ctrl->handler,
+					    struct ov5647, ctrls);
+	struct v4l2_subdev *sd = &sensor->sd;
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	int ret = 0;
+
+
+	/* v4l2_ctrl_lock() locks our own mutex */
+
+	if (ctrl->id == V4L2_CID_VBLANK) {
+		int exposure_max, exposure_def;
+
+		/* Update max exposure while meeting expected vblanking */
+		exposure_max = sensor->mode->format.height + ctrl->val - 4;
+		exposure_def = min(exposure_max, OV5647_EXPOSURE_DEFAULT);
+		__v4l2_ctrl_modify_range(sensor->exposure,
+					 sensor->exposure->minimum,
+					 exposure_max, sensor->exposure->step,
+					 exposure_def);
+	}
+
+	/*
+	 * If the device is not powered up do not apply any controls
+	 * to H/W at this time. Instead the controls will be restored
+	 * at s_stream(1) time.
+	 */
+	if (pm_runtime_get_if_in_use(&client->dev) == 0)
+		return 0;
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUTO_WHITE_BALANCE:
+		ret = ov5647_s_auto_white_balance(sd, ctrl->val);
+		break;
+	case V4L2_CID_AUTOGAIN:
+		ret = ov5647_s_autogain(sd, ctrl->val);
+		break;
+	case V4L2_CID_EXPOSURE_AUTO:
+		ret = ov5647_s_exposure_auto(sd, ctrl->val);
+		break;
+	case V4L2_CID_ANALOGUE_GAIN:
+		ret =  ov5647_s_analogue_gain(sd, ctrl->val);
+		break;
+	case V4L2_CID_EXPOSURE:
+		ret = ov5647_s_exposure(sd, ctrl->val);
+		break;
+	case V4L2_CID_VBLANK:
+		ret = ov5647_write16(sd, OV5647_REG_VTS_HI,
+				     sensor->mode->format.height + ctrl->val);
+		break;
+	case V4L2_CID_TEST_PATTERN:
+		ret = ov5647_write(sd, OV5647_REG_ISPCTRL3D,
+				   ov5647_test_pattern_val[ctrl->val]);
+		break;
+
+	/* Read-only, but we adjust it based on mode. */
+	case V4L2_CID_PIXEL_RATE:
+	case V4L2_CID_HBLANK:
+		/* Read-only, but we adjust it based on mode. */
+		break;
+
+	default:
+		dev_info(&client->dev,
+			 "Control (id:0x%x, val:0x%x) not supported\n",
+			 ctrl->id, ctrl->val);
+		return -EINVAL;
+	}
+
+	pm_runtime_put(&client->dev);
+
+	return ret;
+}
+
+static const struct v4l2_ctrl_ops ov5647_ctrl_ops = {
+	.s_ctrl = ov5647_s_ctrl,
+};
+
+static int ov5647_init_controls(struct ov5647 *sensor)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(&sensor->sd);
+	int hblank, exposure_max, exposure_def;
+
+	v4l2_ctrl_handler_init(&sensor->ctrls, 9);
+
+	v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+			  V4L2_CID_AUTOGAIN, 0, 1, 1, 0);
+
+	v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+			  V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 0);
+
+	v4l2_ctrl_new_std_menu(&sensor->ctrls, &ov5647_ctrl_ops,
+			       V4L2_CID_EXPOSURE_AUTO, V4L2_EXPOSURE_MANUAL,
+			       0, V4L2_EXPOSURE_MANUAL);
+
+	exposure_max = sensor->mode->vts - 4;
+	exposure_def = min(exposure_max, OV5647_EXPOSURE_DEFAULT);
+	sensor->exposure = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+					     V4L2_CID_EXPOSURE,
+					     OV5647_EXPOSURE_MIN,
+					     exposure_max, OV5647_EXPOSURE_STEP,
+					     exposure_def);
+
+	/* min: 16 = 1.0x; max (10 bits); default: 32 = 2.0x. */
+	v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+			  V4L2_CID_ANALOGUE_GAIN, 16, 1023, 1, 32);
+
+	/* By default, PIXEL_RATE is read only, but it does change per mode */
+	sensor->pixel_rate = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+					       V4L2_CID_PIXEL_RATE,
+					       sensor->mode->pixel_rate,
+					       sensor->mode->pixel_rate, 1,
+					       sensor->mode->pixel_rate);
+
+	/* By default, HBLANK is read only, but it does change per mode. */
+	hblank = sensor->mode->hts - sensor->mode->format.width;
+	sensor->hblank = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+					   V4L2_CID_HBLANK, hblank, hblank, 1,
+					   hblank);
+
+	sensor->vblank = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops,
+					   V4L2_CID_VBLANK, OV5647_VBLANK_MIN,
+					   OV5647_VTS_MAX -
+					   sensor->mode->format.height, 1,
+					   sensor->mode->vts -
+					   sensor->mode->format.height);
+
+	v4l2_ctrl_new_std_menu_items(&sensor->ctrls, &ov5647_ctrl_ops,
+				     V4L2_CID_TEST_PATTERN,
+				     ARRAY_SIZE(ov5647_test_pattern_menu) - 1,
+				     0, 0, ov5647_test_pattern_menu);
+
+	if (sensor->ctrls.error)
+		goto handler_free;
+
+	sensor->pixel_rate->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+	sensor->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+	sensor->sd.ctrl_handler = &sensor->ctrls;
+
+	return 0;
+
+handler_free:
+	dev_err(&client->dev, "%s Controls initialization failed (%d)\n",
+		__func__, sensor->ctrls.error);
+	v4l2_ctrl_handler_free(&sensor->ctrls);
+
+	return sensor->ctrls.error;
+}
+
+static int ov5647_parse_dt(struct ov5647 *sensor, struct device_node *np)
+{
+	struct v4l2_fwnode_endpoint bus_cfg = {
+		.bus_type = V4L2_MBUS_CSI2_DPHY,
+	};
+	struct device_node *ep;
+	int ret;
+
+	ep = of_graph_get_next_endpoint(np, NULL);
+	if (!ep)
+		return -EINVAL;
+
+	ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg);
+	if (ret)
+		goto out;
+
+	sensor->clock_ncont = bus_cfg.bus.mipi_csi2.flags &
+			      V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK;
+
+out:
+	of_node_put(ep);
+
+	return ret;
+}
+
+static int ov5647_probe(struct i2c_client *client)
+{
+	struct device_node *np = client->dev.of_node;
+	struct device *dev = &client->dev;
+	struct ov5647 *sensor;
+	struct v4l2_subdev *sd;
+	u32 xclk_freq;
+	int ret;
+
+	sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL);
+	if (!sensor)
+		return -ENOMEM;
+
+	if (IS_ENABLED(CONFIG_OF) && np) {
+		ret = ov5647_parse_dt(sensor, np);
+		if (ret) {
+			dev_err(dev, "DT parsing error: %d\n", ret);
+			return ret;
+		}
+	}
+
+	sensor->xclk = devm_clk_get(dev, NULL);
+	if (IS_ERR(sensor->xclk)) {
+		dev_err(dev, "could not get xclk");
+		return PTR_ERR(sensor->xclk);
+	}
+
+	xclk_freq = clk_get_rate(sensor->xclk);
+	if (xclk_freq != 25000000) {
+		dev_err(dev, "Unsupported clock frequency: %u\n", xclk_freq);
+		return -EINVAL;
+	}
+
+	/* Request the power down GPIO asserted. */
+	sensor->pwdn = devm_gpiod_get_optional(dev, "pwdn", GPIOD_OUT_HIGH);
+	if (IS_ERR(sensor->pwdn)) {
+		dev_err(dev, "Failed to get 'pwdn' gpio\n");
+		return -EINVAL;
+	}
+
+	mutex_init(&sensor->lock);
+
+	sensor->mode = OV5647_DEFAULT_MODE;
+
+	ret = ov5647_init_controls(sensor);
+	if (ret)
+		goto mutex_destroy;
+
+	sd = &sensor->sd;
+	v4l2_i2c_subdev_init(sd, client, &ov5647_subdev_ops);
+	sd->internal_ops = &ov5647_subdev_internal_ops;
+	sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS;
+
+	sensor->pad.flags = MEDIA_PAD_FL_SOURCE;
+	sd->entity.function = MEDIA_ENT_F_CAM_SENSOR;
+	ret = media_entity_pads_init(&sd->entity, 1, &sensor->pad);
+	if (ret < 0)
+		goto ctrl_handler_free;
+
+	ret = ov5647_power_on(dev);
+	if (ret)
+		goto entity_cleanup;
+
+	ret = ov5647_detect(sd);
+	if (ret < 0)
+		goto power_off;
+
+	ret = v4l2_async_register_subdev(sd);
+	if (ret < 0)
+		goto power_off;
+
+	/* Enable runtime PM and turn off the device */
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+	pm_runtime_idle(dev);
+
+	dev_dbg(dev, "OmniVision OV5647 camera driver probed\n");
+
+	return 0;
+
+power_off:
+	ov5647_power_off(dev);
+entity_cleanup:
+	media_entity_cleanup(&sd->entity);
+ctrl_handler_free:
+	v4l2_ctrl_handler_free(&sensor->ctrls);
+mutex_destroy:
+	mutex_destroy(&sensor->lock);
+
+	return ret;
+}
+
+static void ov5647_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	struct ov5647 *sensor = to_sensor(sd);
+
+	v4l2_async_unregister_subdev(&sensor->sd);
+	media_entity_cleanup(&sensor->sd.entity);
+	v4l2_ctrl_handler_free(&sensor->ctrls);
+	v4l2_device_unregister_subdev(sd);
+	pm_runtime_disable(&client->dev);
+	mutex_destroy(&sensor->lock);
+}
+
+static const struct dev_pm_ops ov5647_pm_ops = {
+	SET_RUNTIME_PM_OPS(ov5647_power_off, ov5647_power_on, NULL)
+};
+
+static const struct i2c_device_id ov5647_id[] = {
+	{ "ov5647", 0 },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(i2c, ov5647_id);
+
+#if IS_ENABLED(CONFIG_OF)
+static const struct of_device_id ov5647_of_match[] = {
+	{ .compatible = "ovti,ov5647" },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, ov5647_of_match);
+#endif
+
+static struct i2c_driver ov5647_driver = {
+	.driver = {
+		.of_match_table = of_match_ptr(ov5647_of_match),
+		.name	= "ov5647",
+		.pm	= &ov5647_pm_ops,
+	},
+	.probe		= ov5647_probe,
+	.remove		= ov5647_remove,
+	.id_table	= ov5647_id,
+};
+
+module_i2c_driver(ov5647_driver);
+
+MODULE_AUTHOR("Ramiro Oliveira <roliveir@synopsys.com>");
+MODULE_DESCRIPTION("A low-level driver for OmniVision ov5647 sensors");
+MODULE_LICENSE("GPL v2");