Adding upstream version 6.6.15.upstream/6.6.15

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

1 files changed, 1434 insertions, 0 deletions

diff --git a/drivers/media/i2c/ov5693.c b/drivers/media/i2c/ov5693.c
new file mode 100644
index 0000000000..488ee6d9d3
--- /dev/null
+++ b/drivers/media/i2c/ov5693.c
@@ -0,0 +1,1434 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2013 Intel Corporation. All Rights Reserved.
+ *
+ * Adapted from the atomisp-ov5693 driver, with contributions from:
+ *
+ * Daniel Scally
+ * Jean-Michel Hautbois
+ * Fabian Wuthrich
+ * Tsuchiya Yuto
+ * Jordan Hand
+ * Jake Day
+ */
+
+#include <linux/acpi.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include <media/v4l2-cci.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+
+/* System Control */
+#define OV5693_SW_RESET_REG			CCI_REG8(0x0103)
+#define OV5693_SW_STREAM_REG			CCI_REG8(0x0100)
+#define OV5693_START_STREAMING			0x01
+#define OV5693_STOP_STREAMING			0x00
+#define OV5693_SW_RESET				0x01
+
+#define OV5693_REG_CHIP_ID			CCI_REG16(0x300a)
+/* Yes, this is right. The datasheet for the OV5693 gives its ID as 0x5690 */
+#define OV5693_CHIP_ID				0x5690
+
+/* Exposure */
+#define OV5693_EXPOSURE_CTRL_REG		CCI_REG24(0x3500)
+#define OV5693_EXPOSURE_CTRL_MASK		GENMASK(19, 4)
+#define OV5693_INTEGRATION_TIME_MARGIN		8
+#define OV5693_EXPOSURE_MIN			1
+#define OV5693_EXPOSURE_STEP			1
+
+/* Analogue Gain */
+#define OV5693_GAIN_CTRL_REG			CCI_REG16(0x350a)
+#define OV5693_GAIN_CTRL_MASK			GENMASK(10, 4)
+#define OV5693_GAIN_MIN				1
+#define OV5693_GAIN_MAX				127
+#define OV5693_GAIN_DEF				8
+#define OV5693_GAIN_STEP			1
+
+/* Digital Gain */
+#define OV5693_MWB_RED_GAIN_REG			CCI_REG16(0x3400)
+#define OV5693_MWB_GREEN_GAIN_REG		CCI_REG16(0x3402)
+#define OV5693_MWB_BLUE_GAIN_REG		CCI_REG16(0x3404)
+#define OV5693_MWB_GAIN_MASK			GENMASK(11, 0)
+#define OV5693_MWB_GAIN_MAX			0x0fff
+#define OV5693_DIGITAL_GAIN_MIN			1
+#define OV5693_DIGITAL_GAIN_MAX			4095
+#define OV5693_DIGITAL_GAIN_DEF			1024
+#define OV5693_DIGITAL_GAIN_STEP		1
+
+/* Timing and Format */
+#define OV5693_CROP_START_X_REG			CCI_REG16(0x3800)
+#define OV5693_CROP_START_Y_REG			CCI_REG16(0x3802)
+#define OV5693_CROP_END_X_REG			CCI_REG16(0x3804)
+#define OV5693_CROP_END_Y_REG			CCI_REG16(0x3806)
+#define OV5693_OUTPUT_SIZE_X_REG		CCI_REG16(0x3808)
+#define OV5693_OUTPUT_SIZE_Y_REG		CCI_REG16(0x380a)
+
+#define OV5693_TIMING_HTS_REG			CCI_REG16(0x380c)
+#define OV5693_FIXED_PPL			2688U
+#define OV5693_TIMING_VTS_REG			CCI_REG16(0x380e)
+#define OV5693_TIMING_MAX_VTS			0xffff
+#define OV5693_TIMING_MIN_VTS			0x04
+
+#define OV5693_OFFSET_START_X_REG		CCI_REG16(0x3810)
+#define OV5693_OFFSET_START_Y_REG		CCI_REG16(0x3812)
+
+#define OV5693_SUB_INC_X_REG			CCI_REG8(0x3814)
+#define OV5693_SUB_INC_Y_REG			CCI_REG8(0x3815)
+
+#define OV5693_FORMAT1_REG			CCI_REG8(0x3820)
+#define OV5693_FORMAT1_FLIP_VERT_ISP_EN		BIT(6)
+#define OV5693_FORMAT1_FLIP_VERT_SENSOR_EN	BIT(1)
+#define OV5693_FORMAT1_VBIN_EN			BIT(0)
+#define OV5693_FORMAT2_REG			CCI_REG8(0x3821)
+#define OV5693_FORMAT2_HDR_EN			BIT(7)
+#define OV5693_FORMAT2_FLIP_HORZ_ISP_EN		BIT(2)
+#define OV5693_FORMAT2_FLIP_HORZ_SENSOR_EN	BIT(1)
+#define OV5693_FORMAT2_HBIN_EN			BIT(0)
+
+#define OV5693_ISP_CTRL2_REG			CCI_REG8(0x5002)
+#define OV5693_ISP_SCALE_ENABLE			BIT(7)
+
+/* Pixel Array */
+#define OV5693_NATIVE_WIDTH			2624
+#define OV5693_NATIVE_HEIGHT			1956
+#define OV5693_NATIVE_START_LEFT		0
+#define OV5693_NATIVE_START_TOP			0
+#define OV5693_ACTIVE_WIDTH			2592
+#define OV5693_ACTIVE_HEIGHT			1944
+#define OV5693_ACTIVE_START_LEFT		16
+#define OV5693_ACTIVE_START_TOP			6
+#define OV5693_MIN_CROP_WIDTH			2
+#define OV5693_MIN_CROP_HEIGHT			2
+
+/* Test Pattern */
+#define OV5693_TEST_PATTERN_REG			CCI_REG8(0x5e00)
+#define OV5693_TEST_PATTERN_ENABLE		BIT(7)
+#define OV5693_TEST_PATTERN_ROLLING		BIT(6)
+#define OV5693_TEST_PATTERN_RANDOM		0x01
+#define OV5693_TEST_PATTERN_BARS		0x00
+
+/* System Frequencies */
+#define OV5693_XVCLK_FREQ			19200000
+#define OV5693_LINK_FREQ_419_2MHZ		419200000
+#define OV5693_PIXEL_RATE			167680000
+
+#define to_ov5693_sensor(x) container_of(x, struct ov5693_device, sd)
+
+static const char * const ov5693_supply_names[] = {
+	"avdd",		/* Analog power */
+	"dovdd",	/* Digital I/O power */
+	"dvdd",		/* Digital circuit power */
+};
+
+#define OV5693_NUM_SUPPLIES	ARRAY_SIZE(ov5693_supply_names)
+
+struct ov5693_device {
+	struct device *dev;
+	struct regmap *regmap;
+
+	/* Protect against concurrent changes to controls */
+	struct mutex lock;
+
+	struct gpio_desc *reset;
+	struct gpio_desc *powerdown;
+	struct gpio_desc *privacy_led;
+	struct regulator_bulk_data supplies[OV5693_NUM_SUPPLIES];
+	struct clk *xvclk;
+
+	struct ov5693_mode {
+		struct v4l2_rect crop;
+		struct v4l2_mbus_framefmt format;
+		bool binning_x;
+		bool binning_y;
+		unsigned int inc_x_odd;
+		unsigned int inc_y_odd;
+		unsigned int vts;
+	} mode;
+	bool streaming;
+
+	struct v4l2_subdev sd;
+	struct media_pad pad;
+
+	struct ov5693_v4l2_ctrls {
+		struct v4l2_ctrl_handler handler;
+		struct v4l2_ctrl *link_freq;
+		struct v4l2_ctrl *pixel_rate;
+		struct v4l2_ctrl *exposure;
+		struct v4l2_ctrl *analogue_gain;
+		struct v4l2_ctrl *digital_gain;
+		struct v4l2_ctrl *hflip;
+		struct v4l2_ctrl *vflip;
+		struct v4l2_ctrl *hblank;
+		struct v4l2_ctrl *vblank;
+		struct v4l2_ctrl *test_pattern;
+	} ctrls;
+};
+
+static const struct cci_reg_sequence ov5693_global_regs[] = {
+	{CCI_REG8(0x3016), 0xf0},
+	{CCI_REG8(0x3017), 0xf0},
+	{CCI_REG8(0x3018), 0xf0},
+	{CCI_REG8(0x3022), 0x01},
+	{CCI_REG8(0x3028), 0x44},
+	{CCI_REG8(0x3098), 0x02},
+	{CCI_REG8(0x3099), 0x19},
+	{CCI_REG8(0x309a), 0x02},
+	{CCI_REG8(0x309b), 0x01},
+	{CCI_REG8(0x309c), 0x00},
+	{CCI_REG8(0x30a0), 0xd2},
+	{CCI_REG8(0x30a2), 0x01},
+	{CCI_REG8(0x30b2), 0x00},
+	{CCI_REG8(0x30b3), 0x83},
+	{CCI_REG8(0x30b4), 0x03},
+	{CCI_REG8(0x30b5), 0x04},
+	{CCI_REG8(0x30b6), 0x01},
+	{CCI_REG8(0x3080), 0x01},
+	{CCI_REG8(0x3104), 0x21},
+	{CCI_REG8(0x3106), 0x00},
+	{CCI_REG8(0x3406), 0x01},
+	{CCI_REG8(0x3503), 0x07},
+	{CCI_REG8(0x350b), 0x40},
+	{CCI_REG8(0x3601), 0x0a},
+	{CCI_REG8(0x3602), 0x38},
+	{CCI_REG8(0x3612), 0x80},
+	{CCI_REG8(0x3620), 0x54},
+	{CCI_REG8(0x3621), 0xc7},
+	{CCI_REG8(0x3622), 0x0f},
+	{CCI_REG8(0x3625), 0x10},
+	{CCI_REG8(0x3630), 0x55},
+	{CCI_REG8(0x3631), 0xf4},
+	{CCI_REG8(0x3632), 0x00},
+	{CCI_REG8(0x3633), 0x34},
+	{CCI_REG8(0x3634), 0x02},
+	{CCI_REG8(0x364d), 0x0d},
+	{CCI_REG8(0x364f), 0xdd},
+	{CCI_REG8(0x3660), 0x04},
+	{CCI_REG8(0x3662), 0x10},
+	{CCI_REG8(0x3663), 0xf1},
+	{CCI_REG8(0x3665), 0x00},
+	{CCI_REG8(0x3666), 0x20},
+	{CCI_REG8(0x3667), 0x00},
+	{CCI_REG8(0x366a), 0x80},
+	{CCI_REG8(0x3680), 0xe0},
+	{CCI_REG8(0x3681), 0x00},
+	{CCI_REG8(0x3700), 0x42},
+	{CCI_REG8(0x3701), 0x14},
+	{CCI_REG8(0x3702), 0xa0},
+	{CCI_REG8(0x3703), 0xd8},
+	{CCI_REG8(0x3704), 0x78},
+	{CCI_REG8(0x3705), 0x02},
+	{CCI_REG8(0x370a), 0x00},
+	{CCI_REG8(0x370b), 0x20},
+	{CCI_REG8(0x370c), 0x0c},
+	{CCI_REG8(0x370d), 0x11},
+	{CCI_REG8(0x370e), 0x00},
+	{CCI_REG8(0x370f), 0x40},
+	{CCI_REG8(0x3710), 0x00},
+	{CCI_REG8(0x371a), 0x1c},
+	{CCI_REG8(0x371b), 0x05},
+	{CCI_REG8(0x371c), 0x01},
+	{CCI_REG8(0x371e), 0xa1},
+	{CCI_REG8(0x371f), 0x0c},
+	{CCI_REG8(0x3721), 0x00},
+	{CCI_REG8(0x3724), 0x10},
+	{CCI_REG8(0x3726), 0x00},
+	{CCI_REG8(0x372a), 0x01},
+	{CCI_REG8(0x3730), 0x10},
+	{CCI_REG8(0x3738), 0x22},
+	{CCI_REG8(0x3739), 0xe5},
+	{CCI_REG8(0x373a), 0x50},
+	{CCI_REG8(0x373b), 0x02},
+	{CCI_REG8(0x373c), 0x41},
+	{CCI_REG8(0x373f), 0x02},
+	{CCI_REG8(0x3740), 0x42},
+	{CCI_REG8(0x3741), 0x02},
+	{CCI_REG8(0x3742), 0x18},
+	{CCI_REG8(0x3743), 0x01},
+	{CCI_REG8(0x3744), 0x02},
+	{CCI_REG8(0x3747), 0x10},
+	{CCI_REG8(0x374c), 0x04},
+	{CCI_REG8(0x3751), 0xf0},
+	{CCI_REG8(0x3752), 0x00},
+	{CCI_REG8(0x3753), 0x00},
+	{CCI_REG8(0x3754), 0xc0},
+	{CCI_REG8(0x3755), 0x00},
+	{CCI_REG8(0x3756), 0x1a},
+	{CCI_REG8(0x3758), 0x00},
+	{CCI_REG8(0x3759), 0x0f},
+	{CCI_REG8(0x376b), 0x44},
+	{CCI_REG8(0x375c), 0x04},
+	{CCI_REG8(0x3774), 0x10},
+	{CCI_REG8(0x3776), 0x00},
+	{CCI_REG8(0x377f), 0x08},
+	{CCI_REG8(0x3780), 0x22},
+	{CCI_REG8(0x3781), 0x0c},
+	{CCI_REG8(0x3784), 0x2c},
+	{CCI_REG8(0x3785), 0x1e},
+	{CCI_REG8(0x378f), 0xf5},
+	{CCI_REG8(0x3791), 0xb0},
+	{CCI_REG8(0x3795), 0x00},
+	{CCI_REG8(0x3796), 0x64},
+	{CCI_REG8(0x3797), 0x11},
+	{CCI_REG8(0x3798), 0x30},
+	{CCI_REG8(0x3799), 0x41},
+	{CCI_REG8(0x379a), 0x07},
+	{CCI_REG8(0x379b), 0xb0},
+	{CCI_REG8(0x379c), 0x0c},
+	{CCI_REG8(0x3a04), 0x06},
+	{CCI_REG8(0x3a05), 0x14},
+	{CCI_REG8(0x3e07), 0x20},
+	{CCI_REG8(0x4000), 0x08},
+	{CCI_REG8(0x4001), 0x04},
+	{CCI_REG8(0x4004), 0x08},
+	{CCI_REG8(0x4006), 0x20},
+	{CCI_REG8(0x4008), 0x24},
+	{CCI_REG8(0x4009), 0x10},
+	{CCI_REG8(0x4058), 0x00},
+	{CCI_REG8(0x4101), 0xb2},
+	{CCI_REG8(0x4307), 0x31},
+	{CCI_REG8(0x4511), 0x05},
+	{CCI_REG8(0x4512), 0x01},
+	{CCI_REG8(0x481f), 0x30},
+	{CCI_REG8(0x4826), 0x2c},
+	{CCI_REG8(0x4d02), 0xfd},
+	{CCI_REG8(0x4d03), 0xf5},
+	{CCI_REG8(0x4d04), 0x0c},
+	{CCI_REG8(0x4d05), 0xcc},
+	{CCI_REG8(0x4837), 0x0a},
+	{CCI_REG8(0x5003), 0x20},
+	{CCI_REG8(0x5013), 0x00},
+	{CCI_REG8(0x5842), 0x01},
+	{CCI_REG8(0x5843), 0x2b},
+	{CCI_REG8(0x5844), 0x01},
+	{CCI_REG8(0x5845), 0x92},
+	{CCI_REG8(0x5846), 0x01},
+	{CCI_REG8(0x5847), 0x8f},
+	{CCI_REG8(0x5848), 0x01},
+	{CCI_REG8(0x5849), 0x0c},
+	{CCI_REG8(0x5e10), 0x0c},
+	{CCI_REG8(0x3820), 0x00},
+	{CCI_REG8(0x3821), 0x1e},
+	{CCI_REG8(0x5041), 0x14}
+};
+
+static const struct v4l2_rect ov5693_default_crop = {
+	.left = OV5693_ACTIVE_START_LEFT,
+	.top = OV5693_ACTIVE_START_TOP,
+	.width = OV5693_ACTIVE_WIDTH,
+	.height = OV5693_ACTIVE_HEIGHT,
+};
+
+static const struct v4l2_mbus_framefmt ov5693_default_fmt = {
+	.width = OV5693_ACTIVE_WIDTH,
+	.height = OV5693_ACTIVE_HEIGHT,
+	.code = MEDIA_BUS_FMT_SBGGR10_1X10,
+};
+
+static const s64 link_freq_menu_items[] = {
+	OV5693_LINK_FREQ_419_2MHZ
+};
+
+static const char * const ov5693_test_pattern_menu[] = {
+	"Disabled",
+	"Random Data",
+	"Colour Bars",
+	"Colour Bars with Rolling Bar"
+};
+
+static const u8 ov5693_test_pattern_bits[] = {
+	0,
+	OV5693_TEST_PATTERN_ENABLE | OV5693_TEST_PATTERN_RANDOM,
+	OV5693_TEST_PATTERN_ENABLE | OV5693_TEST_PATTERN_BARS,
+	OV5693_TEST_PATTERN_ENABLE | OV5693_TEST_PATTERN_BARS |
+	OV5693_TEST_PATTERN_ROLLING,
+};
+
+/* V4L2 Controls Functions */
+
+static int ov5693_flip_vert_configure(struct ov5693_device *ov5693,
+				      bool enable)
+{
+	u8 bits = OV5693_FORMAT1_FLIP_VERT_ISP_EN |
+		  OV5693_FORMAT1_FLIP_VERT_SENSOR_EN;
+	int ret;
+
+	ret = cci_update_bits(ov5693->regmap, OV5693_FORMAT1_REG, bits,
+			      enable ? bits : 0, NULL);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int ov5693_flip_horz_configure(struct ov5693_device *ov5693,
+				      bool enable)
+{
+	u8 bits = OV5693_FORMAT2_FLIP_HORZ_ISP_EN |
+		  OV5693_FORMAT2_FLIP_HORZ_SENSOR_EN;
+	int ret;
+
+	ret = cci_update_bits(ov5693->regmap, OV5693_FORMAT2_REG, bits,
+			      enable ? bits : 0, NULL);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int ov5693_get_exposure(struct ov5693_device *ov5693, s32 *value)
+{
+	u64 exposure;
+	int ret;
+
+	ret = cci_read(ov5693->regmap, OV5693_EXPOSURE_CTRL_REG, &exposure,
+		       NULL);
+	if (ret)
+		return ret;
+
+	/* The lowest 4 bits are unsupported fractional bits */
+	*value = exposure >> 4;
+
+	return 0;
+}
+
+static int ov5693_exposure_configure(struct ov5693_device *ov5693,
+				     u32 exposure)
+{
+	int ret = 0;
+
+	exposure = (exposure << 4) & OV5693_EXPOSURE_CTRL_MASK;
+
+	cci_write(ov5693->regmap, OV5693_EXPOSURE_CTRL_REG, exposure, &ret);
+
+	return ret;
+}
+
+static int ov5693_get_gain(struct ov5693_device *ov5693, u32 *gain)
+{
+	u64 value;
+	int ret;
+
+	ret = cci_read(ov5693->regmap, OV5693_GAIN_CTRL_REG, &value, NULL);
+	if (ret)
+		return ret;
+
+	/* As with exposure, the lowest 4 bits are fractional bits. */
+	*gain = value >> 4;
+
+	return ret;
+}
+
+static int ov5693_digital_gain_configure(struct ov5693_device *ov5693,
+					 u32 gain)
+{
+	int ret = 0;
+
+	gain &= OV5693_MWB_GAIN_MASK;
+
+	cci_write(ov5693->regmap, OV5693_MWB_RED_GAIN_REG, gain, &ret);
+	cci_write(ov5693->regmap, OV5693_MWB_GREEN_GAIN_REG, gain, &ret);
+	cci_write(ov5693->regmap, OV5693_MWB_BLUE_GAIN_REG, gain, &ret);
+
+	return ret;
+}
+
+static int ov5693_analog_gain_configure(struct ov5693_device *ov5693, u32 gain)
+{
+	int ret = 0;
+
+	gain = (gain << 4) & OV5693_GAIN_CTRL_MASK;
+
+	cci_write(ov5693->regmap, OV5693_GAIN_CTRL_REG, gain, &ret);
+
+	return ret;
+}
+
+static int ov5693_vts_configure(struct ov5693_device *ov5693, u32 vblank)
+{
+	u16 vts = ov5693->mode.format.height + vblank;
+	int ret = 0;
+
+	cci_write(ov5693->regmap, OV5693_TIMING_VTS_REG, vts, &ret);
+
+	return ret;
+}
+
+static int ov5693_test_pattern_configure(struct ov5693_device *ov5693, u32 idx)
+{
+	int ret = 0;
+
+	cci_write(ov5693->regmap, OV5693_TEST_PATTERN_REG,
+		  ov5693_test_pattern_bits[idx], &ret);
+
+	return ret;
+}
+
+static int ov5693_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct ov5693_device *ov5693 =
+	    container_of(ctrl->handler, struct ov5693_device, ctrls.handler);
+	int ret = 0;
+
+	/* If VBLANK is altered we need to update exposure to compensate */
+	if (ctrl->id == V4L2_CID_VBLANK) {
+		int exposure_max;
+
+		exposure_max = ov5693->mode.format.height + ctrl->val -
+			       OV5693_INTEGRATION_TIME_MARGIN;
+		__v4l2_ctrl_modify_range(ov5693->ctrls.exposure,
+					 ov5693->ctrls.exposure->minimum,
+					 exposure_max,
+					 ov5693->ctrls.exposure->step,
+					 min(ov5693->ctrls.exposure->val,
+					     exposure_max));
+	}
+
+	/* Only apply changes to the controls if the device is powered up */
+	if (!pm_runtime_get_if_in_use(ov5693->dev))
+		return 0;
+
+	switch (ctrl->id) {
+	case V4L2_CID_EXPOSURE:
+		ret = ov5693_exposure_configure(ov5693, ctrl->val);
+		break;
+	case V4L2_CID_ANALOGUE_GAIN:
+		ret = ov5693_analog_gain_configure(ov5693, ctrl->val);
+		break;
+	case V4L2_CID_DIGITAL_GAIN:
+		ret = ov5693_digital_gain_configure(ov5693, ctrl->val);
+		break;
+	case V4L2_CID_HFLIP:
+		ret = ov5693_flip_horz_configure(ov5693, !!ctrl->val);
+		break;
+	case V4L2_CID_VFLIP:
+		ret = ov5693_flip_vert_configure(ov5693, !!ctrl->val);
+		break;
+	case V4L2_CID_VBLANK:
+		ret = ov5693_vts_configure(ov5693, ctrl->val);
+		break;
+	case V4L2_CID_TEST_PATTERN:
+		ret = ov5693_test_pattern_configure(ov5693, ctrl->val);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	pm_runtime_put(ov5693->dev);
+
+	return ret;
+}
+
+static int ov5693_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct ov5693_device *ov5693 = container_of(ctrl->handler,
+						    struct ov5693_device,
+						    ctrls.handler);
+
+	switch (ctrl->id) {
+	case V4L2_CID_EXPOSURE_ABSOLUTE:
+		return ov5693_get_exposure(ov5693, &ctrl->val);
+	case V4L2_CID_AUTOGAIN:
+		return ov5693_get_gain(ov5693, &ctrl->val);
+	default:
+		return -EINVAL;
+	}
+}
+
+static const struct v4l2_ctrl_ops ov5693_ctrl_ops = {
+	.s_ctrl = ov5693_s_ctrl,
+	.g_volatile_ctrl = ov5693_g_volatile_ctrl
+};
+
+/* System Control Functions */
+
+static int ov5693_mode_configure(struct ov5693_device *ov5693)
+{
+	const struct ov5693_mode *mode = &ov5693->mode;
+	int ret = 0;
+
+	/* Crop Start X */
+	cci_write(ov5693->regmap, OV5693_CROP_START_X_REG, mode->crop.left,
+		  &ret);
+
+	/* Offset X */
+	cci_write(ov5693->regmap, OV5693_OFFSET_START_X_REG, 0, &ret);
+
+	/* Output Size X */
+	cci_write(ov5693->regmap, OV5693_OUTPUT_SIZE_X_REG, mode->format.width,
+		  &ret);
+
+	/* Crop End X */
+	cci_write(ov5693->regmap, OV5693_CROP_END_X_REG,
+		  mode->crop.left + mode->crop.width, &ret);
+
+	/* Horizontal Total Size */
+	cci_write(ov5693->regmap, OV5693_TIMING_HTS_REG, OV5693_FIXED_PPL,
+		  &ret);
+
+	/* Crop Start Y */
+	cci_write(ov5693->regmap, OV5693_CROP_START_Y_REG, mode->crop.top,
+		  &ret);
+
+	/* Offset Y */
+	cci_write(ov5693->regmap, OV5693_OFFSET_START_Y_REG, 0, &ret);
+
+	/* Output Size Y */
+	cci_write(ov5693->regmap, OV5693_OUTPUT_SIZE_Y_REG, mode->format.height,
+		  &ret);
+
+	/* Crop End Y */
+	cci_write(ov5693->regmap, OV5693_CROP_END_Y_REG,
+		  mode->crop.top + mode->crop.height, &ret);
+
+	/* Subsample X increase */
+	cci_write(ov5693->regmap, OV5693_SUB_INC_X_REG,
+		  ((mode->inc_x_odd << 4) & 0xf0) | 0x01, &ret);
+	/* Subsample Y increase */
+	cci_write(ov5693->regmap, OV5693_SUB_INC_Y_REG,
+		  ((mode->inc_y_odd << 4) & 0xf0) | 0x01, &ret);
+
+	/* Binning */
+	cci_update_bits(ov5693->regmap, OV5693_FORMAT1_REG,
+			OV5693_FORMAT1_VBIN_EN,
+			mode->binning_y ? OV5693_FORMAT1_VBIN_EN : 0, &ret);
+
+	cci_update_bits(ov5693->regmap, OV5693_FORMAT2_REG,
+			OV5693_FORMAT2_HBIN_EN,
+			mode->binning_x ? OV5693_FORMAT2_HBIN_EN : 0, &ret);
+
+	return ret;
+}
+
+static int ov5693_enable_streaming(struct ov5693_device *ov5693, bool enable)
+{
+	int ret = 0;
+
+	cci_write(ov5693->regmap, OV5693_SW_STREAM_REG,
+		  enable ? OV5693_START_STREAMING : OV5693_STOP_STREAMING,
+		  &ret);
+
+	return ret;
+}
+
+static int ov5693_sw_reset(struct ov5693_device *ov5693)
+{
+	int ret = 0;
+
+	cci_write(ov5693->regmap, OV5693_SW_RESET_REG, OV5693_SW_RESET, &ret);
+
+	return ret;
+}
+
+static int ov5693_sensor_init(struct ov5693_device *ov5693)
+{
+	int ret;
+
+	ret = ov5693_sw_reset(ov5693);
+	if (ret)
+		return dev_err_probe(ov5693->dev, ret,
+				     "software reset error\n");
+
+	ret = cci_multi_reg_write(ov5693->regmap, ov5693_global_regs,
+				  ARRAY_SIZE(ov5693_global_regs), NULL);
+	if (ret)
+		return dev_err_probe(ov5693->dev, ret,
+				     "global settings error\n");
+
+	ret = ov5693_mode_configure(ov5693);
+	if (ret)
+		return dev_err_probe(ov5693->dev, ret,
+				     "mode configure error\n");
+
+	ret = ov5693_enable_streaming(ov5693, false);
+	if (ret)
+		dev_err(ov5693->dev, "stop streaming error\n");
+
+	return ret;
+}
+
+static void ov5693_sensor_powerdown(struct ov5693_device *ov5693)
+{
+	gpiod_set_value_cansleep(ov5693->privacy_led, 0);
+	gpiod_set_value_cansleep(ov5693->reset, 1);
+	gpiod_set_value_cansleep(ov5693->powerdown, 1);
+
+	regulator_bulk_disable(OV5693_NUM_SUPPLIES, ov5693->supplies);
+
+	clk_disable_unprepare(ov5693->xvclk);
+}
+
+static int ov5693_sensor_powerup(struct ov5693_device *ov5693)
+{
+	int ret;
+
+	gpiod_set_value_cansleep(ov5693->reset, 1);
+	gpiod_set_value_cansleep(ov5693->powerdown, 1);
+
+	ret = clk_prepare_enable(ov5693->xvclk);
+	if (ret) {
+		dev_err(ov5693->dev, "Failed to enable clk\n");
+		goto fail_power;
+	}
+
+	ret = regulator_bulk_enable(OV5693_NUM_SUPPLIES, ov5693->supplies);
+	if (ret) {
+		dev_err(ov5693->dev, "Failed to enable regulators\n");
+		goto fail_power;
+	}
+
+	gpiod_set_value_cansleep(ov5693->powerdown, 0);
+	gpiod_set_value_cansleep(ov5693->reset, 0);
+	gpiod_set_value_cansleep(ov5693->privacy_led, 1);
+
+	usleep_range(5000, 7500);
+
+	return 0;
+
+fail_power:
+	ov5693_sensor_powerdown(ov5693);
+	return ret;
+}
+
+static int __maybe_unused ov5693_sensor_suspend(struct device *dev)
+{
+	struct v4l2_subdev *sd = dev_get_drvdata(dev);
+	struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+
+	ov5693_sensor_powerdown(ov5693);
+
+	return 0;
+}
+
+static int __maybe_unused ov5693_sensor_resume(struct device *dev)
+{
+	struct v4l2_subdev *sd = dev_get_drvdata(dev);
+	struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+	int ret;
+
+	mutex_lock(&ov5693->lock);
+
+	ret = ov5693_sensor_powerup(ov5693);
+	if (ret)
+		goto out_unlock;
+
+	ret = ov5693_sensor_init(ov5693);
+	if (ret) {
+		dev_err(dev, "ov5693 sensor init failure\n");
+		goto err_power;
+	}
+
+	goto out_unlock;
+
+err_power:
+	ov5693_sensor_powerdown(ov5693);
+out_unlock:
+	mutex_unlock(&ov5693->lock);
+	return ret;
+}
+
+static int ov5693_detect(struct ov5693_device *ov5693)
+{
+	int ret;
+	u64 id;
+
+	ret = cci_read(ov5693->regmap, OV5693_REG_CHIP_ID, &id, NULL);
+	if (ret)
+		return ret;
+
+	if (id != OV5693_CHIP_ID)
+		return dev_err_probe(ov5693->dev, -ENODEV,
+				     "sensor ID mismatch. Got 0x%04llx\n", id);
+
+	return 0;
+}
+
+/* V4L2 Framework callbacks */
+
+static unsigned int __ov5693_calc_vts(u32 height)
+{
+	/*
+	 * We need to set a sensible default VTS for whatever format height we
+	 * happen to be given from set_fmt(). This function just targets
+	 * an even multiple of 30fps.
+	 */
+
+	unsigned int tgt_fps;
+
+	tgt_fps = rounddown(OV5693_PIXEL_RATE / OV5693_FIXED_PPL / height, 30);
+
+	return ALIGN_DOWN(OV5693_PIXEL_RATE / OV5693_FIXED_PPL / tgt_fps, 2);
+}
+
+static struct v4l2_mbus_framefmt *
+__ov5693_get_pad_format(struct ov5693_device *ov5693,
+			struct v4l2_subdev_state *state,
+			unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+	switch (which) {
+	case V4L2_SUBDEV_FORMAT_TRY:
+		return v4l2_subdev_get_try_format(&ov5693->sd, state, pad);
+	case V4L2_SUBDEV_FORMAT_ACTIVE:
+		return &ov5693->mode.format;
+	default:
+		return NULL;
+	}
+}
+
+static struct v4l2_rect *
+__ov5693_get_pad_crop(struct ov5693_device *ov5693,
+		      struct v4l2_subdev_state *state,
+		      unsigned int pad, enum v4l2_subdev_format_whence which)
+{
+	switch (which) {
+	case V4L2_SUBDEV_FORMAT_TRY:
+		return v4l2_subdev_get_try_crop(&ov5693->sd, state, pad);
+	case V4L2_SUBDEV_FORMAT_ACTIVE:
+		return &ov5693->mode.crop;
+	}
+
+	return NULL;
+}
+
+static int ov5693_get_fmt(struct v4l2_subdev *sd,
+			  struct v4l2_subdev_state *state,
+			  struct v4l2_subdev_format *format)
+{
+	struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+
+	format->format = ov5693->mode.format;
+
+	return 0;
+}
+
+static int ov5693_set_fmt(struct v4l2_subdev *sd,
+			  struct v4l2_subdev_state *state,
+			  struct v4l2_subdev_format *format)
+{
+	struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+	const struct v4l2_rect *crop;
+	struct v4l2_mbus_framefmt *fmt;
+	unsigned int hratio, vratio;
+	unsigned int width, height;
+	unsigned int hblank;
+	int exposure_max;
+
+	crop = __ov5693_get_pad_crop(ov5693, state, format->pad, format->which);
+
+	/*
+	 * Align to two to simplify the binning calculations below, and clamp
+	 * the requested format at the crop rectangle
+	 */
+	width = clamp_t(unsigned int, ALIGN(format->format.width, 2),
+			OV5693_MIN_CROP_WIDTH, crop->width);
+	height = clamp_t(unsigned int, ALIGN(format->format.height, 2),
+			 OV5693_MIN_CROP_HEIGHT, crop->height);
+
+	/*
+	 * We can only support setting either the dimensions of the crop rect
+	 * or those dimensions binned (separately) by a factor of two.
+	 */
+	hratio = clamp_t(unsigned int,
+			 DIV_ROUND_CLOSEST(crop->width, width), 1, 2);
+	vratio = clamp_t(unsigned int,
+			 DIV_ROUND_CLOSEST(crop->height, height), 1, 2);
+
+	fmt = __ov5693_get_pad_format(ov5693, state, format->pad,
+				      format->which);
+
+	fmt->width = crop->width / hratio;
+	fmt->height = crop->height / vratio;
+	fmt->code = MEDIA_BUS_FMT_SBGGR10_1X10;
+
+	format->format = *fmt;
+
+	if (format->which == V4L2_SUBDEV_FORMAT_TRY)
+		return 0;
+
+	mutex_lock(&ov5693->lock);
+
+	ov5693->mode.binning_x = hratio > 1;
+	ov5693->mode.inc_x_odd = hratio > 1 ? 3 : 1;
+	ov5693->mode.binning_y = vratio > 1;
+	ov5693->mode.inc_y_odd = vratio > 1 ? 3 : 1;
+
+	ov5693->mode.vts = __ov5693_calc_vts(fmt->height);
+
+	__v4l2_ctrl_modify_range(ov5693->ctrls.vblank,
+				 OV5693_TIMING_MIN_VTS,
+				 OV5693_TIMING_MAX_VTS - fmt->height,
+				 1, ov5693->mode.vts - fmt->height);
+	__v4l2_ctrl_s_ctrl(ov5693->ctrls.vblank,
+			   ov5693->mode.vts - fmt->height);
+
+	hblank = OV5693_FIXED_PPL - fmt->width;
+	__v4l2_ctrl_modify_range(ov5693->ctrls.hblank, hblank, hblank, 1,
+				 hblank);
+
+	exposure_max = ov5693->mode.vts - OV5693_INTEGRATION_TIME_MARGIN;
+	__v4l2_ctrl_modify_range(ov5693->ctrls.exposure,
+				 ov5693->ctrls.exposure->minimum, exposure_max,
+				 ov5693->ctrls.exposure->step,
+				 min(ov5693->ctrls.exposure->val,
+				     exposure_max));
+
+	mutex_unlock(&ov5693->lock);
+	return 0;
+}
+
+static int ov5693_get_selection(struct v4l2_subdev *sd,
+				struct v4l2_subdev_state *state,
+				struct v4l2_subdev_selection *sel)
+{
+	struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+
+	switch (sel->target) {
+	case V4L2_SEL_TGT_CROP:
+		mutex_lock(&ov5693->lock);
+		sel->r = *__ov5693_get_pad_crop(ov5693, state, sel->pad,
+						sel->which);
+		mutex_unlock(&ov5693->lock);
+		break;
+	case V4L2_SEL_TGT_NATIVE_SIZE:
+		sel->r.top = 0;
+		sel->r.left = 0;
+		sel->r.width = OV5693_NATIVE_WIDTH;
+		sel->r.height = OV5693_NATIVE_HEIGHT;
+		break;
+	case V4L2_SEL_TGT_CROP_BOUNDS:
+	case V4L2_SEL_TGT_CROP_DEFAULT:
+		sel->r.top = OV5693_ACTIVE_START_TOP;
+		sel->r.left = OV5693_ACTIVE_START_LEFT;
+		sel->r.width = OV5693_ACTIVE_WIDTH;
+		sel->r.height = OV5693_ACTIVE_HEIGHT;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int ov5693_set_selection(struct v4l2_subdev *sd,
+				struct v4l2_subdev_state *state,
+				struct v4l2_subdev_selection *sel)
+{
+	struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+	struct v4l2_mbus_framefmt *format;
+	struct v4l2_rect *__crop;
+	struct v4l2_rect rect;
+
+	if (sel->target != V4L2_SEL_TGT_CROP)
+		return -EINVAL;
+
+	/*
+	 * Clamp the boundaries of the crop rectangle to the size of the sensor
+	 * pixel array. Align to multiples of 2 to ensure Bayer pattern isn't
+	 * disrupted.
+	 */
+	rect.left = clamp(ALIGN(sel->r.left, 2), OV5693_NATIVE_START_LEFT,
+			  OV5693_NATIVE_WIDTH);
+	rect.top = clamp(ALIGN(sel->r.top, 2), OV5693_NATIVE_START_TOP,
+			 OV5693_NATIVE_HEIGHT);
+	rect.width = clamp_t(unsigned int, ALIGN(sel->r.width, 2),
+			     OV5693_MIN_CROP_WIDTH, OV5693_NATIVE_WIDTH);
+	rect.height = clamp_t(unsigned int, ALIGN(sel->r.height, 2),
+			      OV5693_MIN_CROP_HEIGHT, OV5693_NATIVE_HEIGHT);
+
+	/* Make sure the crop rectangle isn't outside the bounds of the array */
+	rect.width = min_t(unsigned int, rect.width,
+			   OV5693_NATIVE_WIDTH - rect.left);
+	rect.height = min_t(unsigned int, rect.height,
+			    OV5693_NATIVE_HEIGHT - rect.top);
+
+	__crop = __ov5693_get_pad_crop(ov5693, state, sel->pad, sel->which);
+
+	if (rect.width != __crop->width || rect.height != __crop->height) {
+		/*
+		 * Reset the output image size if the crop rectangle size has
+		 * been modified.
+		 */
+		format = __ov5693_get_pad_format(ov5693, state, sel->pad,
+						 sel->which);
+		format->width = rect.width;
+		format->height = rect.height;
+	}
+
+	*__crop = rect;
+	sel->r = rect;
+
+	return 0;
+}
+
+static int ov5693_s_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+	int ret;
+
+	if (enable) {
+		ret = pm_runtime_get_sync(ov5693->dev);
+		if (ret < 0)
+			goto err_power_down;
+
+		mutex_lock(&ov5693->lock);
+		ret = __v4l2_ctrl_handler_setup(&ov5693->ctrls.handler);
+		if (ret) {
+			mutex_unlock(&ov5693->lock);
+			goto err_power_down;
+		}
+
+		ret = ov5693_enable_streaming(ov5693, true);
+		mutex_unlock(&ov5693->lock);
+	} else {
+		mutex_lock(&ov5693->lock);
+		ret = ov5693_enable_streaming(ov5693, false);
+		mutex_unlock(&ov5693->lock);
+	}
+	if (ret)
+		goto err_power_down;
+
+	ov5693->streaming = !!enable;
+
+	if (!enable)
+		pm_runtime_put(ov5693->dev);
+
+	return 0;
+err_power_down:
+	pm_runtime_put_noidle(ov5693->dev);
+	return ret;
+}
+
+static int ov5693_g_frame_interval(struct v4l2_subdev *sd,
+				   struct v4l2_subdev_frame_interval *interval)
+{
+	struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+	unsigned int framesize = OV5693_FIXED_PPL * (ov5693->mode.format.height +
+				 ov5693->ctrls.vblank->val);
+	unsigned int fps = DIV_ROUND_CLOSEST(OV5693_PIXEL_RATE, framesize);
+
+	interval->interval.numerator = 1;
+	interval->interval.denominator = fps;
+
+	return 0;
+}
+
+static int ov5693_enum_mbus_code(struct v4l2_subdev *sd,
+				 struct v4l2_subdev_state *state,
+				 struct v4l2_subdev_mbus_code_enum *code)
+{
+	/* Only a single mbus format is supported */
+	if (code->index > 0)
+		return -EINVAL;
+
+	code->code = MEDIA_BUS_FMT_SBGGR10_1X10;
+	return 0;
+}
+
+static int ov5693_enum_frame_size(struct v4l2_subdev *sd,
+				  struct v4l2_subdev_state *state,
+				  struct v4l2_subdev_frame_size_enum *fse)
+{
+	struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+	struct v4l2_rect *__crop;
+
+	if (fse->index > 1 || fse->code != MEDIA_BUS_FMT_SBGGR10_1X10)
+		return -EINVAL;
+
+	__crop = __ov5693_get_pad_crop(ov5693, state, fse->pad, fse->which);
+	if (!__crop)
+		return -EINVAL;
+
+	fse->min_width = __crop->width / (fse->index + 1);
+	fse->min_height = __crop->height / (fse->index + 1);
+	fse->max_width = fse->min_width;
+	fse->max_height = fse->min_height;
+
+	return 0;
+}
+
+static const struct v4l2_subdev_video_ops ov5693_video_ops = {
+	.s_stream = ov5693_s_stream,
+	.g_frame_interval = ov5693_g_frame_interval,
+};
+
+static const struct v4l2_subdev_pad_ops ov5693_pad_ops = {
+	.enum_mbus_code = ov5693_enum_mbus_code,
+	.enum_frame_size = ov5693_enum_frame_size,
+	.get_fmt = ov5693_get_fmt,
+	.set_fmt = ov5693_set_fmt,
+	.get_selection = ov5693_get_selection,
+	.set_selection = ov5693_set_selection,
+};
+
+static const struct v4l2_subdev_ops ov5693_ops = {
+	.video = &ov5693_video_ops,
+	.pad = &ov5693_pad_ops,
+};
+
+/* Sensor and Driver Configuration Functions */
+
+static int ov5693_init_controls(struct ov5693_device *ov5693)
+{
+	const struct v4l2_ctrl_ops *ops = &ov5693_ctrl_ops;
+	struct ov5693_v4l2_ctrls *ctrls = &ov5693->ctrls;
+	struct v4l2_fwnode_device_properties props;
+	int vblank_max, vblank_def;
+	int exposure_max;
+	int hblank;
+	int ret;
+
+	ret = v4l2_ctrl_handler_init(&ctrls->handler, 12);
+	if (ret)
+		return ret;
+
+	/* link freq */
+	ctrls->link_freq = v4l2_ctrl_new_int_menu(&ctrls->handler,
+						  NULL, V4L2_CID_LINK_FREQ,
+						  0, 0, link_freq_menu_items);
+	if (ctrls->link_freq)
+		ctrls->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+	/* pixel rate */
+	ctrls->pixel_rate = v4l2_ctrl_new_std(&ctrls->handler, NULL,
+					      V4L2_CID_PIXEL_RATE, 0,
+					      OV5693_PIXEL_RATE, 1,
+					      OV5693_PIXEL_RATE);
+
+	/* Exposure */
+	exposure_max = ov5693->mode.vts - OV5693_INTEGRATION_TIME_MARGIN;
+	ctrls->exposure = v4l2_ctrl_new_std(&ctrls->handler, ops,
+					    V4L2_CID_EXPOSURE,
+					    OV5693_EXPOSURE_MIN, exposure_max,
+					    OV5693_EXPOSURE_STEP, exposure_max);
+
+	/* Gain */
+	ctrls->analogue_gain = v4l2_ctrl_new_std(&ctrls->handler,
+						 ops, V4L2_CID_ANALOGUE_GAIN,
+						 OV5693_GAIN_MIN,
+						 OV5693_GAIN_MAX,
+						 OV5693_GAIN_STEP,
+						 OV5693_GAIN_DEF);
+
+	ctrls->digital_gain = v4l2_ctrl_new_std(&ctrls->handler, ops,
+						V4L2_CID_DIGITAL_GAIN,
+						OV5693_DIGITAL_GAIN_MIN,
+						OV5693_DIGITAL_GAIN_MAX,
+						OV5693_DIGITAL_GAIN_STEP,
+						OV5693_DIGITAL_GAIN_DEF);
+
+	/* Flip */
+	ctrls->hflip = v4l2_ctrl_new_std(&ctrls->handler, ops,
+					 V4L2_CID_HFLIP, 0, 1, 1, 0);
+
+	ctrls->vflip = v4l2_ctrl_new_std(&ctrls->handler, ops,
+					 V4L2_CID_VFLIP, 0, 1, 1, 0);
+
+	hblank = OV5693_FIXED_PPL - ov5693->mode.format.width;
+	ctrls->hblank = v4l2_ctrl_new_std(&ctrls->handler, ops,
+					  V4L2_CID_HBLANK, hblank,
+					  hblank, 1, hblank);
+
+	if (ctrls->hblank)
+		ctrls->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+	vblank_max = OV5693_TIMING_MAX_VTS - ov5693->mode.format.height;
+	vblank_def = ov5693->mode.vts - ov5693->mode.format.height;
+	ctrls->vblank = v4l2_ctrl_new_std(&ctrls->handler, ops,
+					  V4L2_CID_VBLANK,
+					  OV5693_TIMING_MIN_VTS,
+					  vblank_max, 1, vblank_def);
+
+	ctrls->test_pattern = v4l2_ctrl_new_std_menu_items(
+					&ctrls->handler, ops,
+					V4L2_CID_TEST_PATTERN,
+					ARRAY_SIZE(ov5693_test_pattern_menu) - 1,
+					0, 0, ov5693_test_pattern_menu);
+
+	if (ctrls->handler.error) {
+		dev_err(ov5693->dev, "Error initialising v4l2 ctrls\n");
+		ret = ctrls->handler.error;
+		goto err_free_handler;
+	}
+
+	/* set properties from fwnode (e.g. rotation, orientation) */
+	ret = v4l2_fwnode_device_parse(ov5693->dev, &props);
+	if (ret)
+		goto err_free_handler;
+
+	ret = v4l2_ctrl_new_fwnode_properties(&ctrls->handler, ops,
+					      &props);
+	if (ret)
+		goto err_free_handler;
+
+	/* Use same lock for controls as for everything else. */
+	ctrls->handler.lock = &ov5693->lock;
+	ov5693->sd.ctrl_handler = &ctrls->handler;
+
+	return 0;
+
+err_free_handler:
+	v4l2_ctrl_handler_free(&ctrls->handler);
+	return ret;
+}
+
+static int ov5693_configure_gpios(struct ov5693_device *ov5693)
+{
+	ov5693->reset = devm_gpiod_get_optional(ov5693->dev, "reset",
+						GPIOD_OUT_HIGH);
+	if (IS_ERR(ov5693->reset)) {
+		dev_err(ov5693->dev, "Error fetching reset GPIO\n");
+		return PTR_ERR(ov5693->reset);
+	}
+
+	ov5693->powerdown = devm_gpiod_get_optional(ov5693->dev, "powerdown",
+						    GPIOD_OUT_HIGH);
+	if (IS_ERR(ov5693->powerdown)) {
+		dev_err(ov5693->dev, "Error fetching powerdown GPIO\n");
+		return PTR_ERR(ov5693->powerdown);
+	}
+
+	ov5693->privacy_led = devm_gpiod_get_optional(ov5693->dev, "privacy-led",
+						      GPIOD_OUT_LOW);
+	if (IS_ERR(ov5693->privacy_led)) {
+		dev_err(ov5693->dev, "Error fetching privacy-led GPIO\n");
+		return PTR_ERR(ov5693->privacy_led);
+	}
+
+	return 0;
+}
+
+static int ov5693_get_regulators(struct ov5693_device *ov5693)
+{
+	unsigned int i;
+
+	for (i = 0; i < OV5693_NUM_SUPPLIES; i++)
+		ov5693->supplies[i].supply = ov5693_supply_names[i];
+
+	return devm_regulator_bulk_get(ov5693->dev, OV5693_NUM_SUPPLIES,
+				       ov5693->supplies);
+}
+
+static int ov5693_check_hwcfg(struct ov5693_device *ov5693)
+{
+	struct fwnode_handle *fwnode = dev_fwnode(ov5693->dev);
+	struct v4l2_fwnode_endpoint bus_cfg = {
+		.bus_type = V4L2_MBUS_CSI2_DPHY,
+	};
+	struct fwnode_handle *endpoint;
+	unsigned int i;
+	int ret;
+
+	endpoint = fwnode_graph_get_next_endpoint(fwnode, NULL);
+	if (!endpoint)
+		return -EPROBE_DEFER; /* Could be provided by cio2-bridge */
+
+	ret = v4l2_fwnode_endpoint_alloc_parse(endpoint, &bus_cfg);
+	fwnode_handle_put(endpoint);
+	if (ret)
+		return ret;
+
+	if (bus_cfg.bus.mipi_csi2.num_data_lanes != 2) {
+		dev_err(ov5693->dev, "only a 2-lane CSI2 config is supported");
+		ret = -EINVAL;
+		goto out_free_bus_cfg;
+	}
+
+	if (!bus_cfg.nr_of_link_frequencies) {
+		dev_err(ov5693->dev, "no link frequencies defined\n");
+		ret = -EINVAL;
+		goto out_free_bus_cfg;
+	}
+
+	for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++)
+		if (bus_cfg.link_frequencies[i] == OV5693_LINK_FREQ_419_2MHZ)
+			break;
+
+	if (i == bus_cfg.nr_of_link_frequencies) {
+		dev_err(ov5693->dev, "supported link freq %ull not found\n",
+			OV5693_LINK_FREQ_419_2MHZ);
+		ret = -EINVAL;
+		goto out_free_bus_cfg;
+	}
+
+out_free_bus_cfg:
+	v4l2_fwnode_endpoint_free(&bus_cfg);
+
+	return ret;
+}
+
+static int ov5693_probe(struct i2c_client *client)
+{
+	struct ov5693_device *ov5693;
+	u32 xvclk_rate;
+	int ret = 0;
+
+	ov5693 = devm_kzalloc(&client->dev, sizeof(*ov5693), GFP_KERNEL);
+	if (!ov5693)
+		return -ENOMEM;
+
+	ov5693->dev = &client->dev;
+
+	ov5693->regmap = devm_cci_regmap_init_i2c(client, 16);
+	if (IS_ERR(ov5693->regmap))
+		return PTR_ERR(ov5693->regmap);
+
+	ret = ov5693_check_hwcfg(ov5693);
+	if (ret)
+		return ret;
+
+	mutex_init(&ov5693->lock);
+
+	v4l2_i2c_subdev_init(&ov5693->sd, client, &ov5693_ops);
+
+	ov5693->xvclk = devm_clk_get_optional(&client->dev, "xvclk");
+	if (IS_ERR(ov5693->xvclk))
+		return dev_err_probe(&client->dev, PTR_ERR(ov5693->xvclk),
+				     "failed to get xvclk: %ld\n",
+				     PTR_ERR(ov5693->xvclk));
+
+	if (ov5693->xvclk) {
+		xvclk_rate = clk_get_rate(ov5693->xvclk);
+	} else {
+		ret = fwnode_property_read_u32(dev_fwnode(&client->dev),
+				     "clock-frequency",
+				     &xvclk_rate);
+
+		if (ret) {
+			dev_err(&client->dev, "can't get clock frequency");
+			return ret;
+		}
+	}
+
+	if (xvclk_rate != OV5693_XVCLK_FREQ)
+		dev_warn(&client->dev, "Found clk freq %u, expected %u\n",
+			 xvclk_rate, OV5693_XVCLK_FREQ);
+
+	ret = ov5693_configure_gpios(ov5693);
+	if (ret)
+		return ret;
+
+	ret = ov5693_get_regulators(ov5693);
+	if (ret)
+		return dev_err_probe(&client->dev, ret,
+				     "Error fetching regulators\n");
+
+	ov5693->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+	ov5693->pad.flags = MEDIA_PAD_FL_SOURCE;
+	ov5693->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+
+	ov5693->mode.crop = ov5693_default_crop;
+	ov5693->mode.format = ov5693_default_fmt;
+	ov5693->mode.vts = __ov5693_calc_vts(ov5693->mode.format.height);
+
+	ret = ov5693_init_controls(ov5693);
+	if (ret)
+		return ret;
+
+	ret = media_entity_pads_init(&ov5693->sd.entity, 1, &ov5693->pad);
+	if (ret)
+		goto err_ctrl_handler_free;
+
+	/*
+	 * We need the driver to work in the event that pm runtime is disable in
+	 * the kernel, so power up and verify the chip now. In the event that
+	 * runtime pm is disabled this will leave the chip on, so that streaming
+	 * will work.
+	 */
+
+	ret = ov5693_sensor_powerup(ov5693);
+	if (ret)
+		goto err_media_entity_cleanup;
+
+	ret = ov5693_detect(ov5693);
+	if (ret)
+		goto err_powerdown;
+
+	pm_runtime_set_active(&client->dev);
+	pm_runtime_get_noresume(&client->dev);
+	pm_runtime_enable(&client->dev);
+
+	ret = v4l2_async_register_subdev_sensor(&ov5693->sd);
+	if (ret) {
+		dev_err(&client->dev, "failed to register V4L2 subdev: %d",
+			ret);
+		goto err_pm_runtime;
+	}
+
+	pm_runtime_set_autosuspend_delay(&client->dev, 1000);
+	pm_runtime_use_autosuspend(&client->dev);
+	pm_runtime_put_autosuspend(&client->dev);
+
+	return ret;
+
+err_pm_runtime:
+	pm_runtime_disable(&client->dev);
+	pm_runtime_put_noidle(&client->dev);
+err_powerdown:
+	ov5693_sensor_powerdown(ov5693);
+err_media_entity_cleanup:
+	media_entity_cleanup(&ov5693->sd.entity);
+err_ctrl_handler_free:
+	v4l2_ctrl_handler_free(&ov5693->ctrls.handler);
+
+	return ret;
+}
+
+static void ov5693_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	struct ov5693_device *ov5693 = to_ov5693_sensor(sd);
+
+	v4l2_async_unregister_subdev(sd);
+	media_entity_cleanup(&ov5693->sd.entity);
+	v4l2_ctrl_handler_free(&ov5693->ctrls.handler);
+	mutex_destroy(&ov5693->lock);
+
+	/*
+	 * Disable runtime PM. In case runtime PM is disabled in the kernel,
+	 * make sure to turn power off manually.
+	 */
+	pm_runtime_disable(&client->dev);
+	if (!pm_runtime_status_suspended(&client->dev))
+		ov5693_sensor_powerdown(ov5693);
+	pm_runtime_set_suspended(&client->dev);
+}
+
+static const struct dev_pm_ops ov5693_pm_ops = {
+	SET_RUNTIME_PM_OPS(ov5693_sensor_suspend, ov5693_sensor_resume, NULL)
+};
+
+static const struct acpi_device_id ov5693_acpi_match[] = {
+	{"INT33BE"},
+	{},
+};
+MODULE_DEVICE_TABLE(acpi, ov5693_acpi_match);
+
+static const struct of_device_id ov5693_of_match[] = {
+	{ .compatible = "ovti,ov5693", },
+	{ /* sentinel */ },
+};
+MODULE_DEVICE_TABLE(of, ov5693_of_match);
+
+static struct i2c_driver ov5693_driver = {
+	.driver = {
+		.name = "ov5693",
+		.acpi_match_table = ov5693_acpi_match,
+		.of_match_table = ov5693_of_match,
+		.pm = &ov5693_pm_ops,
+	},
+	.probe = ov5693_probe,
+	.remove = ov5693_remove,
+};
+module_i2c_driver(ov5693_driver);
+
+MODULE_DESCRIPTION("A low-level driver for OmniVision 5693 sensors");
+MODULE_LICENSE("GPL");