Adding upstream version 6.1.76.upstream/6.1.76

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

1 files changed, 1126 insertions, 0 deletions

diff --git a/drivers/media/i2c/og01a1b.c b/drivers/media/i2c/og01a1b.c
new file mode 100644
index 000000000..35663c10f
--- /dev/null
+++ b/drivers/media/i2c/og01a1b.c
@@ -0,0 +1,1126 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2022 Intel Corporation.
+
+#include <asm/unaligned.h>
+#include <linux/acpi.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/pm_runtime.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-fwnode.h>
+
+#define OG01A1B_REG_VALUE_08BIT		1
+#define OG01A1B_REG_VALUE_16BIT		2
+#define OG01A1B_REG_VALUE_24BIT		3
+
+#define OG01A1B_LINK_FREQ_500MHZ	500000000ULL
+#define OG01A1B_SCLK			120000000LL
+#define OG01A1B_MCLK			19200000
+#define OG01A1B_DATA_LANES		2
+#define OG01A1B_RGB_DEPTH		10
+
+#define OG01A1B_REG_CHIP_ID		0x300a
+#define OG01A1B_CHIP_ID			0x470141
+
+#define OG01A1B_REG_MODE_SELECT		0x0100
+#define OG01A1B_MODE_STANDBY		0x00
+#define OG01A1B_MODE_STREAMING		0x01
+
+/* vertical-timings from sensor */
+#define OG01A1B_REG_VTS			0x380e
+#define OG01A1B_VTS_120FPS		0x0498
+#define OG01A1B_VTS_120FPS_MIN		0x0498
+#define OG01A1B_VTS_MAX			0x7fff
+
+/* horizontal-timings from sensor */
+#define OG01A1B_REG_HTS			0x380c
+
+/* Exposure controls from sensor */
+#define OG01A1B_REG_EXPOSURE		0x3501
+#define	OG01A1B_EXPOSURE_MIN		1
+#define OG01A1B_EXPOSURE_MAX_MARGIN	14
+#define	OG01A1B_EXPOSURE_STEP		1
+
+/* Analog gain controls from sensor */
+#define OG01A1B_REG_ANALOG_GAIN		0x3508
+#define	OG01A1B_ANAL_GAIN_MIN		16
+#define	OG01A1B_ANAL_GAIN_MAX		248 /* Max = 15.5x */
+#define	OG01A1B_ANAL_GAIN_STEP		1
+
+/* Digital gain controls from sensor */
+#define OG01A1B_REG_DIG_GAIN		0x350a
+#define OG01A1B_DGTL_GAIN_MIN		1024
+#define OG01A1B_DGTL_GAIN_MAX		16384 /* Max = 16x */
+#define OG01A1B_DGTL_GAIN_STEP		1
+#define OG01A1B_DGTL_GAIN_DEFAULT	1024
+
+/* Group Access */
+#define OG01A1B_REG_GROUP_ACCESS	0x3208
+#define OG01A1B_GROUP_HOLD_START	0x0
+#define OG01A1B_GROUP_HOLD_END		0x10
+#define OG01A1B_GROUP_HOLD_LAUNCH	0xa0
+
+/* Test Pattern Control */
+#define OG01A1B_REG_TEST_PATTERN	0x5100
+#define OG01A1B_TEST_PATTERN_ENABLE	BIT(7)
+#define OG01A1B_TEST_PATTERN_BAR_SHIFT	2
+
+#define to_og01a1b(_sd)			container_of(_sd, struct og01a1b, sd)
+
+enum {
+	OG01A1B_LINK_FREQ_1000MBPS,
+};
+
+struct og01a1b_reg {
+	u16 address;
+	u8 val;
+};
+
+struct og01a1b_reg_list {
+	u32 num_of_regs;
+	const struct og01a1b_reg *regs;
+};
+
+struct og01a1b_link_freq_config {
+	const struct og01a1b_reg_list reg_list;
+};
+
+struct og01a1b_mode {
+	/* Frame width in pixels */
+	u32 width;
+
+	/* Frame height in pixels */
+	u32 height;
+
+	/* Horizontal timining size */
+	u32 hts;
+
+	/* Default vertical timining size */
+	u32 vts_def;
+
+	/* Min vertical timining size */
+	u32 vts_min;
+
+	/* Link frequency needed for this resolution */
+	u32 link_freq_index;
+
+	/* Sensor register settings for this resolution */
+	const struct og01a1b_reg_list reg_list;
+};
+
+static const struct og01a1b_reg mipi_data_rate_1000mbps[] = {
+	{0x0103, 0x01},
+	{0x0303, 0x02},
+	{0x0304, 0x00},
+	{0x0305, 0xd2},
+	{0x0323, 0x02},
+	{0x0324, 0x01},
+	{0x0325, 0x77},
+};
+
+static const struct og01a1b_reg mode_1280x1024_regs[] = {
+	{0x0300, 0x0a},
+	{0x0301, 0x29},
+	{0x0302, 0x31},
+	{0x0303, 0x02},
+	{0x0304, 0x00},
+	{0x0305, 0xd2},
+	{0x0306, 0x00},
+	{0x0307, 0x01},
+	{0x0308, 0x02},
+	{0x0309, 0x00},
+	{0x0310, 0x00},
+	{0x0311, 0x00},
+	{0x0312, 0x07},
+	{0x0313, 0x00},
+	{0x0314, 0x00},
+	{0x0315, 0x00},
+	{0x0320, 0x02},
+	{0x0321, 0x01},
+	{0x0322, 0x01},
+	{0x0323, 0x02},
+	{0x0324, 0x01},
+	{0x0325, 0x77},
+	{0x0326, 0xce},
+	{0x0327, 0x04},
+	{0x0329, 0x02},
+	{0x032a, 0x04},
+	{0x032b, 0x04},
+	{0x032c, 0x02},
+	{0x032d, 0x01},
+	{0x032e, 0x00},
+	{0x300d, 0x02},
+	{0x300e, 0x04},
+	{0x3021, 0x08},
+	{0x301e, 0x03},
+	{0x3103, 0x00},
+	{0x3106, 0x08},
+	{0x3107, 0x40},
+	{0x3216, 0x01},
+	{0x3217, 0x00},
+	{0x3218, 0xc0},
+	{0x3219, 0x55},
+	{0x3500, 0x00},
+	{0x3501, 0x04},
+	{0x3502, 0x8a},
+	{0x3506, 0x01},
+	{0x3507, 0x72},
+	{0x3508, 0x01},
+	{0x3509, 0x00},
+	{0x350a, 0x01},
+	{0x350b, 0x00},
+	{0x350c, 0x00},
+	{0x3541, 0x00},
+	{0x3542, 0x40},
+	{0x3605, 0xe0},
+	{0x3606, 0x41},
+	{0x3614, 0x20},
+	{0x3620, 0x0b},
+	{0x3630, 0x07},
+	{0x3636, 0xa0},
+	{0x3637, 0xf9},
+	{0x3638, 0x09},
+	{0x3639, 0x38},
+	{0x363f, 0x09},
+	{0x3640, 0x17},
+	{0x3662, 0x04},
+	{0x3665, 0x80},
+	{0x3670, 0x68},
+	{0x3674, 0x00},
+	{0x3677, 0x3f},
+	{0x3679, 0x00},
+	{0x369f, 0x19},
+	{0x36a0, 0x03},
+	{0x36a2, 0x19},
+	{0x36a3, 0x03},
+	{0x370d, 0x66},
+	{0x370f, 0x00},
+	{0x3710, 0x03},
+	{0x3715, 0x03},
+	{0x3716, 0x03},
+	{0x3717, 0x06},
+	{0x3733, 0x00},
+	{0x3778, 0x00},
+	{0x37a8, 0x0f},
+	{0x37a9, 0x01},
+	{0x37aa, 0x07},
+	{0x37bd, 0x1c},
+	{0x37c1, 0x2f},
+	{0x37c3, 0x09},
+	{0x37c8, 0x1d},
+	{0x37ca, 0x30},
+	{0x37df, 0x00},
+	{0x3800, 0x00},
+	{0x3801, 0x00},
+	{0x3802, 0x00},
+	{0x3803, 0x00},
+	{0x3804, 0x05},
+	{0x3805, 0x0f},
+	{0x3806, 0x04},
+	{0x3807, 0x0f},
+	{0x3808, 0x05},
+	{0x3809, 0x00},
+	{0x380a, 0x04},
+	{0x380b, 0x00},
+	{0x380c, 0x03},
+	{0x380d, 0x50},
+	{0x380e, 0x04},
+	{0x380f, 0x98},
+	{0x3810, 0x00},
+	{0x3811, 0x08},
+	{0x3812, 0x00},
+	{0x3813, 0x08},
+	{0x3814, 0x11},
+	{0x3815, 0x11},
+	{0x3820, 0x40},
+	{0x3821, 0x04},
+	{0x3826, 0x00},
+	{0x3827, 0x00},
+	{0x382a, 0x08},
+	{0x382b, 0x52},
+	{0x382d, 0xba},
+	{0x383d, 0x14},
+	{0x384a, 0xa2},
+	{0x3866, 0x0e},
+	{0x3867, 0x07},
+	{0x3884, 0x00},
+	{0x3885, 0x08},
+	{0x3893, 0x68},
+	{0x3894, 0x2a},
+	{0x3898, 0x00},
+	{0x3899, 0x31},
+	{0x389a, 0x04},
+	{0x389b, 0x00},
+	{0x389c, 0x0b},
+	{0x389d, 0xad},
+	{0x389f, 0x08},
+	{0x38a0, 0x00},
+	{0x38a1, 0x00},
+	{0x38a8, 0x70},
+	{0x38ac, 0xea},
+	{0x38b2, 0x00},
+	{0x38b3, 0x08},
+	{0x38bc, 0x20},
+	{0x38c4, 0x0c},
+	{0x38c5, 0x3a},
+	{0x38c7, 0x3a},
+	{0x38e1, 0xc0},
+	{0x38ec, 0x3c},
+	{0x38f0, 0x09},
+	{0x38f1, 0x6f},
+	{0x38fe, 0x3c},
+	{0x391e, 0x00},
+	{0x391f, 0x00},
+	{0x3920, 0xa5},
+	{0x3921, 0x00},
+	{0x3922, 0x00},
+	{0x3923, 0x00},
+	{0x3924, 0x05},
+	{0x3925, 0x00},
+	{0x3926, 0x00},
+	{0x3927, 0x00},
+	{0x3928, 0x1a},
+	{0x3929, 0x01},
+	{0x392a, 0xb4},
+	{0x392b, 0x00},
+	{0x392c, 0x10},
+	{0x392f, 0x40},
+	{0x4000, 0xcf},
+	{0x4003, 0x40},
+	{0x4008, 0x00},
+	{0x4009, 0x07},
+	{0x400a, 0x02},
+	{0x400b, 0x54},
+	{0x400c, 0x00},
+	{0x400d, 0x07},
+	{0x4010, 0xc0},
+	{0x4012, 0x02},
+	{0x4014, 0x04},
+	{0x4015, 0x04},
+	{0x4017, 0x02},
+	{0x4042, 0x01},
+	{0x4306, 0x04},
+	{0x4307, 0x12},
+	{0x4509, 0x00},
+	{0x450b, 0x83},
+	{0x4604, 0x68},
+	{0x4608, 0x0a},
+	{0x4700, 0x06},
+	{0x4800, 0x64},
+	{0x481b, 0x3c},
+	{0x4825, 0x32},
+	{0x4833, 0x18},
+	{0x4837, 0x0f},
+	{0x4850, 0x40},
+	{0x4860, 0x00},
+	{0x4861, 0xec},
+	{0x4864, 0x00},
+	{0x4883, 0x00},
+	{0x4888, 0x90},
+	{0x4889, 0x05},
+	{0x488b, 0x04},
+	{0x4f00, 0x04},
+	{0x4f10, 0x04},
+	{0x4f21, 0x01},
+	{0x4f22, 0x40},
+	{0x4f23, 0x44},
+	{0x4f24, 0x51},
+	{0x4f25, 0x41},
+	{0x5000, 0x1f},
+	{0x500a, 0x00},
+	{0x5100, 0x00},
+	{0x5111, 0x20},
+	{0x3020, 0x20},
+	{0x3613, 0x03},
+	{0x38c9, 0x02},
+	{0x5304, 0x01},
+	{0x3620, 0x08},
+	{0x3639, 0x58},
+	{0x363a, 0x10},
+	{0x3674, 0x04},
+	{0x3780, 0xff},
+	{0x3781, 0xff},
+	{0x3782, 0x00},
+	{0x3783, 0x01},
+	{0x3798, 0xa3},
+	{0x37aa, 0x10},
+	{0x38a8, 0xf0},
+	{0x38c4, 0x09},
+	{0x38c5, 0xb0},
+	{0x38df, 0x80},
+	{0x38ff, 0x05},
+	{0x4010, 0xf1},
+	{0x4011, 0x70},
+	{0x3667, 0x80},
+	{0x4d00, 0x4a},
+	{0x4d01, 0x18},
+	{0x4d02, 0xbb},
+	{0x4d03, 0xde},
+	{0x4d04, 0x93},
+	{0x4d05, 0xff},
+	{0x4d09, 0x0a},
+	{0x37aa, 0x16},
+	{0x3606, 0x42},
+	{0x3605, 0x00},
+	{0x36a2, 0x17},
+	{0x300d, 0x0a},
+	{0x4d00, 0x4d},
+	{0x4d01, 0x95},
+	{0x3d8C, 0x70},
+	{0x3d8d, 0xE9},
+	{0x5300, 0x00},
+	{0x5301, 0x10},
+	{0x5302, 0x00},
+	{0x5303, 0xE3},
+	{0x3d88, 0x00},
+	{0x3d89, 0x10},
+	{0x3d8a, 0x00},
+	{0x3d8b, 0xE3},
+	{0x4f22, 0x00},
+};
+
+static const char * const og01a1b_test_pattern_menu[] = {
+	"Disabled",
+	"Standard Color Bar",
+	"Top-Bottom Darker Color Bar",
+	"Right-Left Darker Color Bar",
+	"Bottom-Top Darker Color Bar"
+};
+
+static const s64 link_freq_menu_items[] = {
+	OG01A1B_LINK_FREQ_500MHZ,
+};
+
+static const struct og01a1b_link_freq_config link_freq_configs[] = {
+	[OG01A1B_LINK_FREQ_1000MBPS] = {
+		.reg_list = {
+			.num_of_regs = ARRAY_SIZE(mipi_data_rate_1000mbps),
+			.regs = mipi_data_rate_1000mbps,
+		}
+	}
+};
+
+static const struct og01a1b_mode supported_modes[] = {
+	{
+		.width = 1280,
+		.height = 1024,
+		.hts = 848,
+		.vts_def = OG01A1B_VTS_120FPS,
+		.vts_min = OG01A1B_VTS_120FPS_MIN,
+		.reg_list = {
+			.num_of_regs = ARRAY_SIZE(mode_1280x1024_regs),
+			.regs = mode_1280x1024_regs,
+		},
+		.link_freq_index = OG01A1B_LINK_FREQ_1000MBPS,
+	},
+};
+
+struct og01a1b {
+	struct v4l2_subdev sd;
+	struct media_pad pad;
+	struct v4l2_ctrl_handler ctrl_handler;
+
+	/* V4L2 Controls */
+	struct v4l2_ctrl *link_freq;
+	struct v4l2_ctrl *pixel_rate;
+	struct v4l2_ctrl *vblank;
+	struct v4l2_ctrl *hblank;
+	struct v4l2_ctrl *exposure;
+
+	/* Current mode */
+	const struct og01a1b_mode *cur_mode;
+
+	/* To serialize asynchronus callbacks */
+	struct mutex mutex;
+
+	/* Streaming on/off */
+	bool streaming;
+};
+
+static u64 to_pixel_rate(u32 f_index)
+{
+	u64 pixel_rate = link_freq_menu_items[f_index] * 2 * OG01A1B_DATA_LANES;
+
+	do_div(pixel_rate, OG01A1B_RGB_DEPTH);
+
+	return pixel_rate;
+}
+
+static u64 to_pixels_per_line(u32 hts, u32 f_index)
+{
+	u64 ppl = hts * to_pixel_rate(f_index);
+
+	do_div(ppl, OG01A1B_SCLK);
+
+	return ppl;
+}
+
+static int og01a1b_read_reg(struct og01a1b *og01a1b, u16 reg, u16 len, u32 *val)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(&og01a1b->sd);
+	struct i2c_msg msgs[2];
+	u8 addr_buf[2];
+	u8 data_buf[4] = {0};
+	int ret;
+
+	if (len > 4)
+		return -EINVAL;
+
+	put_unaligned_be16(reg, addr_buf);
+	msgs[0].addr = client->addr;
+	msgs[0].flags = 0;
+	msgs[0].len = sizeof(addr_buf);
+	msgs[0].buf = addr_buf;
+	msgs[1].addr = client->addr;
+	msgs[1].flags = I2C_M_RD;
+	msgs[1].len = len;
+	msgs[1].buf = &data_buf[4 - len];
+
+	ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+	if (ret != ARRAY_SIZE(msgs))
+		return -EIO;
+
+	*val = get_unaligned_be32(data_buf);
+
+	return 0;
+}
+
+static int og01a1b_write_reg(struct og01a1b *og01a1b, u16 reg, u16 len, u32 val)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(&og01a1b->sd);
+	u8 buf[6];
+
+	if (len > 4)
+		return -EINVAL;
+
+	put_unaligned_be16(reg, buf);
+	put_unaligned_be32(val << 8 * (4 - len), buf + 2);
+	if (i2c_master_send(client, buf, len + 2) != len + 2)
+		return -EIO;
+
+	return 0;
+}
+
+static int og01a1b_write_reg_list(struct og01a1b *og01a1b,
+				  const struct og01a1b_reg_list *r_list)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(&og01a1b->sd);
+	unsigned int i;
+	int ret;
+
+	for (i = 0; i < r_list->num_of_regs; i++) {
+		ret = og01a1b_write_reg(og01a1b, r_list->regs[i].address, 1,
+					r_list->regs[i].val);
+		if (ret) {
+			dev_err_ratelimited(&client->dev,
+					    "failed to write reg 0x%4.4x. error = %d",
+					    r_list->regs[i].address, ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int og01a1b_test_pattern(struct og01a1b *og01a1b, u32 pattern)
+{
+	if (pattern)
+		pattern = (pattern - 1) << OG01A1B_TEST_PATTERN_BAR_SHIFT |
+			  OG01A1B_TEST_PATTERN_ENABLE;
+
+	return og01a1b_write_reg(og01a1b, OG01A1B_REG_TEST_PATTERN,
+				 OG01A1B_REG_VALUE_08BIT, pattern);
+}
+
+static int og01a1b_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct og01a1b *og01a1b = container_of(ctrl->handler,
+					       struct og01a1b, ctrl_handler);
+	struct i2c_client *client = v4l2_get_subdevdata(&og01a1b->sd);
+	s64 exposure_max;
+	int ret = 0;
+
+	/* Propagate change of current control to all related controls */
+	if (ctrl->id == V4L2_CID_VBLANK) {
+		/* Update max exposure while meeting expected vblanking */
+		exposure_max = og01a1b->cur_mode->height + ctrl->val -
+			       OG01A1B_EXPOSURE_MAX_MARGIN;
+		__v4l2_ctrl_modify_range(og01a1b->exposure,
+					 og01a1b->exposure->minimum,
+					 exposure_max, og01a1b->exposure->step,
+					 exposure_max);
+	}
+
+	/* V4L2 controls values will be applied only when power is already up */
+	if (!pm_runtime_get_if_in_use(&client->dev))
+		return 0;
+
+	switch (ctrl->id) {
+	case V4L2_CID_ANALOGUE_GAIN:
+		ret = og01a1b_write_reg(og01a1b, OG01A1B_REG_ANALOG_GAIN,
+					OG01A1B_REG_VALUE_16BIT,
+					ctrl->val << 4);
+		break;
+
+	case V4L2_CID_DIGITAL_GAIN:
+		ret = og01a1b_write_reg(og01a1b, OG01A1B_REG_DIG_GAIN,
+					OG01A1B_REG_VALUE_24BIT,
+					ctrl->val << 6);
+		break;
+
+	case V4L2_CID_EXPOSURE:
+		ret = og01a1b_write_reg(og01a1b, OG01A1B_REG_EXPOSURE,
+					OG01A1B_REG_VALUE_16BIT, ctrl->val);
+		break;
+
+	case V4L2_CID_VBLANK:
+		ret = og01a1b_write_reg(og01a1b, OG01A1B_REG_VTS,
+					OG01A1B_REG_VALUE_16BIT,
+					og01a1b->cur_mode->height + ctrl->val);
+		break;
+
+	case V4L2_CID_TEST_PATTERN:
+		ret = og01a1b_test_pattern(og01a1b, ctrl->val);
+		break;
+
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	pm_runtime_put(&client->dev);
+
+	return ret;
+}
+
+static const struct v4l2_ctrl_ops og01a1b_ctrl_ops = {
+	.s_ctrl = og01a1b_set_ctrl,
+};
+
+static int og01a1b_init_controls(struct og01a1b *og01a1b)
+{
+	struct v4l2_ctrl_handler *ctrl_hdlr;
+	s64 exposure_max, h_blank;
+	int ret;
+
+	ctrl_hdlr = &og01a1b->ctrl_handler;
+	ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);
+	if (ret)
+		return ret;
+
+	ctrl_hdlr->lock = &og01a1b->mutex;
+	og01a1b->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr,
+						    &og01a1b_ctrl_ops,
+						    V4L2_CID_LINK_FREQ,
+						    ARRAY_SIZE
+						    (link_freq_menu_items) - 1,
+						    0, link_freq_menu_items);
+	if (og01a1b->link_freq)
+		og01a1b->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+	og01a1b->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &og01a1b_ctrl_ops,
+						V4L2_CID_PIXEL_RATE, 0,
+						to_pixel_rate
+						(OG01A1B_LINK_FREQ_1000MBPS),
+						1,
+						to_pixel_rate
+						(OG01A1B_LINK_FREQ_1000MBPS));
+	og01a1b->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &og01a1b_ctrl_ops,
+					    V4L2_CID_VBLANK,
+					    og01a1b->cur_mode->vts_min -
+					    og01a1b->cur_mode->height,
+					    OG01A1B_VTS_MAX -
+					    og01a1b->cur_mode->height, 1,
+					    og01a1b->cur_mode->vts_def -
+					    og01a1b->cur_mode->height);
+	h_blank = to_pixels_per_line(og01a1b->cur_mode->hts,
+				     og01a1b->cur_mode->link_freq_index) -
+				     og01a1b->cur_mode->width;
+	og01a1b->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &og01a1b_ctrl_ops,
+					    V4L2_CID_HBLANK, h_blank, h_blank,
+					    1, h_blank);
+	if (og01a1b->hblank)
+		og01a1b->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+	v4l2_ctrl_new_std(ctrl_hdlr, &og01a1b_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
+			  OG01A1B_ANAL_GAIN_MIN, OG01A1B_ANAL_GAIN_MAX,
+			  OG01A1B_ANAL_GAIN_STEP, OG01A1B_ANAL_GAIN_MIN);
+	v4l2_ctrl_new_std(ctrl_hdlr, &og01a1b_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
+			  OG01A1B_DGTL_GAIN_MIN, OG01A1B_DGTL_GAIN_MAX,
+			  OG01A1B_DGTL_GAIN_STEP, OG01A1B_DGTL_GAIN_DEFAULT);
+	exposure_max = (og01a1b->cur_mode->vts_def -
+			OG01A1B_EXPOSURE_MAX_MARGIN);
+	og01a1b->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &og01a1b_ctrl_ops,
+					      V4L2_CID_EXPOSURE,
+					      OG01A1B_EXPOSURE_MIN,
+					      exposure_max,
+					      OG01A1B_EXPOSURE_STEP,
+					      exposure_max);
+	v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &og01a1b_ctrl_ops,
+				     V4L2_CID_TEST_PATTERN,
+				     ARRAY_SIZE(og01a1b_test_pattern_menu) - 1,
+				     0, 0, og01a1b_test_pattern_menu);
+
+	if (ctrl_hdlr->error)
+		return ctrl_hdlr->error;
+
+	og01a1b->sd.ctrl_handler = ctrl_hdlr;
+
+	return 0;
+}
+
+static void og01a1b_update_pad_format(const struct og01a1b_mode *mode,
+				      struct v4l2_mbus_framefmt *fmt)
+{
+	fmt->width = mode->width;
+	fmt->height = mode->height;
+	fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
+	fmt->field = V4L2_FIELD_NONE;
+}
+
+static int og01a1b_start_streaming(struct og01a1b *og01a1b)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(&og01a1b->sd);
+	const struct og01a1b_reg_list *reg_list;
+	int link_freq_index, ret;
+
+	link_freq_index = og01a1b->cur_mode->link_freq_index;
+	reg_list = &link_freq_configs[link_freq_index].reg_list;
+
+	ret = og01a1b_write_reg_list(og01a1b, reg_list);
+	if (ret) {
+		dev_err(&client->dev, "failed to set plls");
+		return ret;
+	}
+
+	reg_list = &og01a1b->cur_mode->reg_list;
+	ret = og01a1b_write_reg_list(og01a1b, reg_list);
+	if (ret) {
+		dev_err(&client->dev, "failed to set mode");
+		return ret;
+	}
+
+	ret = __v4l2_ctrl_handler_setup(og01a1b->sd.ctrl_handler);
+	if (ret)
+		return ret;
+
+	ret = og01a1b_write_reg(og01a1b, OG01A1B_REG_MODE_SELECT,
+				OG01A1B_REG_VALUE_08BIT,
+				OG01A1B_MODE_STREAMING);
+	if (ret) {
+		dev_err(&client->dev, "failed to set stream");
+		return ret;
+	}
+
+	return 0;
+}
+
+static void og01a1b_stop_streaming(struct og01a1b *og01a1b)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(&og01a1b->sd);
+
+	if (og01a1b_write_reg(og01a1b, OG01A1B_REG_MODE_SELECT,
+			      OG01A1B_REG_VALUE_08BIT, OG01A1B_MODE_STANDBY))
+		dev_err(&client->dev, "failed to set stream");
+}
+
+static int og01a1b_set_stream(struct v4l2_subdev *sd, int enable)
+{
+	struct og01a1b *og01a1b = to_og01a1b(sd);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+	int ret = 0;
+
+	if (og01a1b->streaming == enable)
+		return 0;
+
+	mutex_lock(&og01a1b->mutex);
+	if (enable) {
+		ret = pm_runtime_get_sync(&client->dev);
+		if (ret < 0) {
+			pm_runtime_put_noidle(&client->dev);
+			mutex_unlock(&og01a1b->mutex);
+			return ret;
+		}
+
+		ret = og01a1b_start_streaming(og01a1b);
+		if (ret) {
+			enable = 0;
+			og01a1b_stop_streaming(og01a1b);
+			pm_runtime_put(&client->dev);
+		}
+	} else {
+		og01a1b_stop_streaming(og01a1b);
+		pm_runtime_put(&client->dev);
+	}
+
+	og01a1b->streaming = enable;
+	mutex_unlock(&og01a1b->mutex);
+
+	return ret;
+}
+
+static int __maybe_unused og01a1b_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	struct og01a1b *og01a1b = to_og01a1b(sd);
+
+	mutex_lock(&og01a1b->mutex);
+	if (og01a1b->streaming)
+		og01a1b_stop_streaming(og01a1b);
+
+	mutex_unlock(&og01a1b->mutex);
+
+	return 0;
+}
+
+static int __maybe_unused og01a1b_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	struct og01a1b *og01a1b = to_og01a1b(sd);
+	int ret;
+
+	mutex_lock(&og01a1b->mutex);
+	if (og01a1b->streaming) {
+		ret = og01a1b_start_streaming(og01a1b);
+		if (ret) {
+			og01a1b->streaming = false;
+			og01a1b_stop_streaming(og01a1b);
+			mutex_unlock(&og01a1b->mutex);
+			return ret;
+		}
+	}
+
+	mutex_unlock(&og01a1b->mutex);
+
+	return 0;
+}
+
+static int og01a1b_set_format(struct v4l2_subdev *sd,
+			      struct v4l2_subdev_state *sd_state,
+			      struct v4l2_subdev_format *fmt)
+{
+	struct og01a1b *og01a1b = to_og01a1b(sd);
+	const struct og01a1b_mode *mode;
+	s32 vblank_def, h_blank;
+
+	mode = v4l2_find_nearest_size(supported_modes,
+				      ARRAY_SIZE(supported_modes), width,
+				      height, fmt->format.width,
+				      fmt->format.height);
+
+	mutex_lock(&og01a1b->mutex);
+	og01a1b_update_pad_format(mode, &fmt->format);
+	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+		*v4l2_subdev_get_try_format(sd, sd_state,
+					    fmt->pad) = fmt->format;
+	} else {
+		og01a1b->cur_mode = mode;
+		__v4l2_ctrl_s_ctrl(og01a1b->link_freq, mode->link_freq_index);
+		__v4l2_ctrl_s_ctrl_int64(og01a1b->pixel_rate,
+					 to_pixel_rate(mode->link_freq_index));
+
+		/* Update limits and set FPS to default */
+		vblank_def = mode->vts_def - mode->height;
+		__v4l2_ctrl_modify_range(og01a1b->vblank,
+					 mode->vts_min - mode->height,
+					 OG01A1B_VTS_MAX - mode->height, 1,
+					 vblank_def);
+		__v4l2_ctrl_s_ctrl(og01a1b->vblank, vblank_def);
+		h_blank = to_pixels_per_line(mode->hts, mode->link_freq_index) -
+			  mode->width;
+		__v4l2_ctrl_modify_range(og01a1b->hblank, h_blank, h_blank, 1,
+					 h_blank);
+	}
+
+	mutex_unlock(&og01a1b->mutex);
+
+	return 0;
+}
+
+static int og01a1b_get_format(struct v4l2_subdev *sd,
+			      struct v4l2_subdev_state *sd_state,
+			      struct v4l2_subdev_format *fmt)
+{
+	struct og01a1b *og01a1b = to_og01a1b(sd);
+
+	mutex_lock(&og01a1b->mutex);
+	if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
+		fmt->format = *v4l2_subdev_get_try_format(&og01a1b->sd,
+							  sd_state,
+							  fmt->pad);
+	else
+		og01a1b_update_pad_format(og01a1b->cur_mode, &fmt->format);
+
+	mutex_unlock(&og01a1b->mutex);
+
+	return 0;
+}
+
+static int og01a1b_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_SGRBG10_1X10;
+
+	return 0;
+}
+
+static int og01a1b_enum_frame_size(struct v4l2_subdev *sd,
+				   struct v4l2_subdev_state *sd_state,
+				   struct v4l2_subdev_frame_size_enum *fse)
+{
+	if (fse->index >= ARRAY_SIZE(supported_modes))
+		return -EINVAL;
+
+	if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
+		return -EINVAL;
+
+	fse->min_width = supported_modes[fse->index].width;
+	fse->max_width = fse->min_width;
+	fse->min_height = supported_modes[fse->index].height;
+	fse->max_height = fse->min_height;
+
+	return 0;
+}
+
+static int og01a1b_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+	struct og01a1b *og01a1b = to_og01a1b(sd);
+
+	mutex_lock(&og01a1b->mutex);
+	og01a1b_update_pad_format(&supported_modes[0],
+				  v4l2_subdev_get_try_format(sd, fh->state, 0));
+	mutex_unlock(&og01a1b->mutex);
+
+	return 0;
+}
+
+static const struct v4l2_subdev_video_ops og01a1b_video_ops = {
+	.s_stream = og01a1b_set_stream,
+};
+
+static const struct v4l2_subdev_pad_ops og01a1b_pad_ops = {
+	.set_fmt = og01a1b_set_format,
+	.get_fmt = og01a1b_get_format,
+	.enum_mbus_code = og01a1b_enum_mbus_code,
+	.enum_frame_size = og01a1b_enum_frame_size,
+};
+
+static const struct v4l2_subdev_ops og01a1b_subdev_ops = {
+	.video = &og01a1b_video_ops,
+	.pad = &og01a1b_pad_ops,
+};
+
+static const struct media_entity_operations og01a1b_subdev_entity_ops = {
+	.link_validate = v4l2_subdev_link_validate,
+};
+
+static const struct v4l2_subdev_internal_ops og01a1b_internal_ops = {
+	.open = og01a1b_open,
+};
+
+static int og01a1b_identify_module(struct og01a1b *og01a1b)
+{
+	struct i2c_client *client = v4l2_get_subdevdata(&og01a1b->sd);
+	int ret;
+	u32 val;
+
+	ret = og01a1b_read_reg(og01a1b, OG01A1B_REG_CHIP_ID,
+			       OG01A1B_REG_VALUE_24BIT, &val);
+	if (ret)
+		return ret;
+
+	if (val != OG01A1B_CHIP_ID) {
+		dev_err(&client->dev, "chip id mismatch: %x!=%x",
+			OG01A1B_CHIP_ID, val);
+		return -ENXIO;
+	}
+
+	return 0;
+}
+
+static int og01a1b_check_hwcfg(struct device *dev)
+{
+	struct fwnode_handle *ep;
+	struct fwnode_handle *fwnode = dev_fwnode(dev);
+	struct v4l2_fwnode_endpoint bus_cfg = {
+		.bus_type = V4L2_MBUS_CSI2_DPHY
+	};
+	u32 mclk;
+	int ret;
+	unsigned int i, j;
+
+	if (!fwnode)
+		return -ENXIO;
+
+	ret = fwnode_property_read_u32(fwnode, "clock-frequency", &mclk);
+
+	if (ret) {
+		dev_err(dev, "can't get clock frequency");
+		return ret;
+	}
+
+	if (mclk != OG01A1B_MCLK) {
+		dev_err(dev, "external clock %d is not supported", mclk);
+		return -EINVAL;
+	}
+
+	ep = fwnode_graph_get_next_endpoint(fwnode, NULL);
+	if (!ep)
+		return -ENXIO;
+
+	ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
+	fwnode_handle_put(ep);
+	if (ret)
+		return ret;
+
+	if (bus_cfg.bus.mipi_csi2.num_data_lanes != OG01A1B_DATA_LANES) {
+		dev_err(dev, "number of CSI2 data lanes %d is not supported",
+			bus_cfg.bus.mipi_csi2.num_data_lanes);
+		ret = -EINVAL;
+		goto check_hwcfg_error;
+	}
+
+	if (!bus_cfg.nr_of_link_frequencies) {
+		dev_err(dev, "no link frequencies defined");
+		ret = -EINVAL;
+		goto check_hwcfg_error;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(link_freq_menu_items); i++) {
+		for (j = 0; j < bus_cfg.nr_of_link_frequencies; j++) {
+			if (link_freq_menu_items[i] ==
+				bus_cfg.link_frequencies[j])
+				break;
+		}
+
+		if (j == bus_cfg.nr_of_link_frequencies) {
+			dev_err(dev, "no link frequency %lld supported",
+				link_freq_menu_items[i]);
+			ret = -EINVAL;
+			goto check_hwcfg_error;
+		}
+	}
+
+check_hwcfg_error:
+	v4l2_fwnode_endpoint_free(&bus_cfg);
+
+	return ret;
+}
+
+static void og01a1b_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *sd = i2c_get_clientdata(client);
+	struct og01a1b *og01a1b = to_og01a1b(sd);
+
+	v4l2_async_unregister_subdev(sd);
+	media_entity_cleanup(&sd->entity);
+	v4l2_ctrl_handler_free(sd->ctrl_handler);
+	pm_runtime_disable(&client->dev);
+	mutex_destroy(&og01a1b->mutex);
+}
+
+static int og01a1b_probe(struct i2c_client *client)
+{
+	struct og01a1b *og01a1b;
+	int ret;
+
+	ret = og01a1b_check_hwcfg(&client->dev);
+	if (ret) {
+		dev_err(&client->dev, "failed to check HW configuration: %d",
+			ret);
+		return ret;
+	}
+
+	og01a1b = devm_kzalloc(&client->dev, sizeof(*og01a1b), GFP_KERNEL);
+	if (!og01a1b)
+		return -ENOMEM;
+
+	v4l2_i2c_subdev_init(&og01a1b->sd, client, &og01a1b_subdev_ops);
+	ret = og01a1b_identify_module(og01a1b);
+	if (ret) {
+		dev_err(&client->dev, "failed to find sensor: %d", ret);
+		return ret;
+	}
+
+	mutex_init(&og01a1b->mutex);
+	og01a1b->cur_mode = &supported_modes[0];
+	ret = og01a1b_init_controls(og01a1b);
+	if (ret) {
+		dev_err(&client->dev, "failed to init controls: %d", ret);
+		goto probe_error_v4l2_ctrl_handler_free;
+	}
+
+	og01a1b->sd.internal_ops = &og01a1b_internal_ops;
+	og01a1b->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+	og01a1b->sd.entity.ops = &og01a1b_subdev_entity_ops;
+	og01a1b->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+	og01a1b->pad.flags = MEDIA_PAD_FL_SOURCE;
+	ret = media_entity_pads_init(&og01a1b->sd.entity, 1, &og01a1b->pad);
+	if (ret) {
+		dev_err(&client->dev, "failed to init entity pads: %d", ret);
+		goto probe_error_v4l2_ctrl_handler_free;
+	}
+
+	ret = v4l2_async_register_subdev_sensor(&og01a1b->sd);
+	if (ret < 0) {
+		dev_err(&client->dev, "failed to register V4L2 subdev: %d",
+			ret);
+		goto probe_error_media_entity_cleanup;
+	}
+
+	/*
+	 * Device is already turned on by i2c-core with ACPI domain PM.
+	 * Enable runtime PM and turn off the device.
+	 */
+	pm_runtime_set_active(&client->dev);
+	pm_runtime_enable(&client->dev);
+	pm_runtime_idle(&client->dev);
+
+	return 0;
+
+probe_error_media_entity_cleanup:
+	media_entity_cleanup(&og01a1b->sd.entity);
+
+probe_error_v4l2_ctrl_handler_free:
+	v4l2_ctrl_handler_free(og01a1b->sd.ctrl_handler);
+	mutex_destroy(&og01a1b->mutex);
+
+	return ret;
+}
+
+static const struct dev_pm_ops og01a1b_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(og01a1b_suspend, og01a1b_resume)
+};
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id og01a1b_acpi_ids[] = {
+	{"OVTI01AC"},
+	{}
+};
+
+MODULE_DEVICE_TABLE(acpi, og01a1b_acpi_ids);
+#endif
+
+static struct i2c_driver og01a1b_i2c_driver = {
+	.driver = {
+		.name = "og01a1b",
+		.pm = &og01a1b_pm_ops,
+		.acpi_match_table = ACPI_PTR(og01a1b_acpi_ids),
+	},
+	.probe_new = og01a1b_probe,
+	.remove = og01a1b_remove,
+};
+
+module_i2c_driver(og01a1b_i2c_driver);
+
+MODULE_AUTHOR("Shawn Tu <shawnx.tu@intel.com>");
+MODULE_DESCRIPTION("OmniVision OG01A1B sensor driver");
+MODULE_LICENSE("GPL v2");