--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2021 Intel Corporation.
+
+#include <linux/acpi.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 OV13B10_REG_VALUE_08BIT 1
+#define OV13B10_REG_VALUE_16BIT 2
+#define OV13B10_REG_VALUE_24BIT 3
+
+#define OV13B10_REG_MODE_SELECT 0x0100
+#define OV13B10_MODE_STANDBY 0x00
+#define OV13B10_MODE_STREAMING 0x01
+
+#define OV13B10_REG_SOFTWARE_RST 0x0103
+#define OV13B10_SOFTWARE_RST 0x01
+
+/* Chip ID */
+#define OV13B10_REG_CHIP_ID 0x300a
+#define OV13B10_CHIP_ID 0x560d42
+
+/* V_TIMING internal */
+#define OV13B10_REG_VTS 0x380e
+#define OV13B10_VTS_30FPS 0x0c7c
+#define OV13B10_VTS_60FPS 0x063e
+#define OV13B10_VTS_MAX 0x7fff
+
+/* HBLANK control - read only */
+#define OV13B10_PPL_560MHZ 4704
+
+/* Exposure control */
+#define OV13B10_REG_EXPOSURE 0x3500
+#define OV13B10_EXPOSURE_MIN 4
+#define OV13B10_EXPOSURE_STEP 1
+#define OV13B10_EXPOSURE_DEFAULT 0x40
+
+/* Analog gain control */
+#define OV13B10_REG_ANALOG_GAIN 0x3508
+#define OV13B10_ANA_GAIN_MIN 0x80
+#define OV13B10_ANA_GAIN_MAX 0x07c0
+#define OV13B10_ANA_GAIN_STEP 1
+#define OV13B10_ANA_GAIN_DEFAULT 0x80
+
+/* Digital gain control */
+#define OV13B10_REG_DGTL_GAIN_H 0x350a
+#define OV13B10_REG_DGTL_GAIN_M 0x350b
+#define OV13B10_REG_DGTL_GAIN_L 0x350c
+
+#define OV13B10_DGTL_GAIN_MIN 1024 /* Min = 1 X */
+#define OV13B10_DGTL_GAIN_MAX (4096 - 1) /* Max = 4 X */
+#define OV13B10_DGTL_GAIN_DEFAULT 2560 /* Default gain = 2.5 X */
+#define OV13B10_DGTL_GAIN_STEP 1 /* Each step = 1/1024 */
+
+#define OV13B10_DGTL_GAIN_L_SHIFT 6
+#define OV13B10_DGTL_GAIN_L_MASK 0x3
+#define OV13B10_DGTL_GAIN_M_SHIFT 2
+#define OV13B10_DGTL_GAIN_M_MASK 0xff
+#define OV13B10_DGTL_GAIN_H_SHIFT 10
+#define OV13B10_DGTL_GAIN_H_MASK 0x3
+
+/* Test Pattern Control */
+#define OV13B10_REG_TEST_PATTERN 0x5080
+#define OV13B10_TEST_PATTERN_ENABLE BIT(7)
+#define OV13B10_TEST_PATTERN_MASK 0xf3
+#define OV13B10_TEST_PATTERN_BAR_SHIFT 2
+
+/* Flip Control */
+#define OV13B10_REG_FORMAT1 0x3820
+#define OV13B10_REG_FORMAT2 0x3821
+
+/* Horizontal Window Offset */
+#define OV13B10_REG_H_WIN_OFFSET 0x3811
+
+/* Vertical Window Offset */
+#define OV13B10_REG_V_WIN_OFFSET 0x3813
+
+struct ov13b10_reg {
+ u16 address;
+ u8 val;
+};
+
+struct ov13b10_reg_list {
+ u32 num_of_regs;
+ const struct ov13b10_reg *regs;
+};
+
+/* Link frequency config */
+struct ov13b10_link_freq_config {
+ u32 pixels_per_line;
+
+ /* registers for this link frequency */
+ struct ov13b10_reg_list reg_list;
+};
+
+/* Mode : resolution and related config&values */
+struct ov13b10_mode {
+ /* Frame width */
+ u32 width;
+ /* Frame height */
+ u32 height;
+
+ /* V-timing */
+ u32 vts_def;
+ u32 vts_min;
+
+ /* Index of Link frequency config to be used */
+ u32 link_freq_index;
+ /* Default register values */
+ struct ov13b10_reg_list reg_list;
+};
+
+/* 4208x3120 needs 1120Mbps/lane, 4 lanes */
+static const struct ov13b10_reg mipi_data_rate_1120mbps[] = {
+ {0x0103, 0x01},
+ {0x0303, 0x04},
+ {0x0305, 0xaf},
+ {0x0321, 0x00},
+ {0x0323, 0x04},
+ {0x0324, 0x01},
+ {0x0325, 0xa4},
+ {0x0326, 0x81},
+ {0x0327, 0x04},
+ {0x3012, 0x07},
+ {0x3013, 0x32},
+ {0x3107, 0x23},
+ {0x3501, 0x0c},
+ {0x3502, 0x10},
+ {0x3504, 0x08},
+ {0x3508, 0x07},
+ {0x3509, 0xc0},
+ {0x3600, 0x16},
+ {0x3601, 0x54},
+ {0x3612, 0x4e},
+ {0x3620, 0x00},
+ {0x3621, 0x68},
+ {0x3622, 0x66},
+ {0x3623, 0x03},
+ {0x3662, 0x92},
+ {0x3666, 0xbb},
+ {0x3667, 0x44},
+ {0x366e, 0xff},
+ {0x366f, 0xf3},
+ {0x3675, 0x44},
+ {0x3676, 0x00},
+ {0x367f, 0xe9},
+ {0x3681, 0x32},
+ {0x3682, 0x1f},
+ {0x3683, 0x0b},
+ {0x3684, 0x0b},
+ {0x3704, 0x0f},
+ {0x3706, 0x40},
+ {0x3708, 0x3b},
+ {0x3709, 0x72},
+ {0x370b, 0xa2},
+ {0x3714, 0x24},
+ {0x371a, 0x3e},
+ {0x3725, 0x42},
+ {0x3739, 0x12},
+ {0x3767, 0x00},
+ {0x377a, 0x0d},
+ {0x3789, 0x18},
+ {0x3790, 0x40},
+ {0x3791, 0xa2},
+ {0x37c2, 0x04},
+ {0x37c3, 0xf1},
+ {0x37d9, 0x0c},
+ {0x37da, 0x02},
+ {0x37dc, 0x02},
+ {0x37e1, 0x04},
+ {0x37e2, 0x0a},
+ {0x3800, 0x00},
+ {0x3801, 0x00},
+ {0x3802, 0x00},
+ {0x3803, 0x08},
+ {0x3804, 0x10},
+ {0x3805, 0x8f},
+ {0x3806, 0x0c},
+ {0x3807, 0x47},
+ {0x3808, 0x10},
+ {0x3809, 0x70},
+ {0x380a, 0x0c},
+ {0x380b, 0x30},
+ {0x380c, 0x04},
+ {0x380d, 0x98},
+ {0x380e, 0x0c},
+ {0x380f, 0x7c},
+ {0x3811, 0x0f},
+ {0x3813, 0x09},
+ {0x3814, 0x01},
+ {0x3815, 0x01},
+ {0x3816, 0x01},
+ {0x3817, 0x01},
+ {0x381f, 0x08},
+ {0x3820, 0x88},
+ {0x3821, 0x00},
+ {0x3822, 0x14},
+ {0x382e, 0xe6},
+ {0x3c80, 0x00},
+ {0x3c87, 0x01},
+ {0x3c8c, 0x19},
+ {0x3c8d, 0x1c},
+ {0x3ca0, 0x00},
+ {0x3ca1, 0x00},
+ {0x3ca2, 0x00},
+ {0x3ca3, 0x00},
+ {0x3ca4, 0x50},
+ {0x3ca5, 0x11},
+ {0x3ca6, 0x01},
+ {0x3ca7, 0x00},
+ {0x3ca8, 0x00},
+ {0x4008, 0x02},
+ {0x4009, 0x0f},
+ {0x400a, 0x01},
+ {0x400b, 0x19},
+ {0x4011, 0x21},
+ {0x4017, 0x08},
+ {0x4019, 0x04},
+ {0x401a, 0x58},
+ {0x4032, 0x1e},
+ {0x4050, 0x02},
+ {0x4051, 0x09},
+ {0x405e, 0x00},
+ {0x4066, 0x02},
+ {0x4501, 0x00},
+ {0x4502, 0x10},
+ {0x4505, 0x00},
+ {0x4800, 0x64},
+ {0x481b, 0x3e},
+ {0x481f, 0x30},
+ {0x4825, 0x34},
+ {0x4837, 0x0e},
+ {0x484b, 0x01},
+ {0x4883, 0x02},
+ {0x5000, 0xff},
+ {0x5001, 0x0f},
+ {0x5045, 0x20},
+ {0x5046, 0x20},
+ {0x5047, 0xa4},
+ {0x5048, 0x20},
+ {0x5049, 0xa4},
+ {0x0100, 0x01},
+};
+
+static const struct ov13b10_reg mode_4208x3120_regs[] = {
+ {0x0305, 0xaf},
+ {0x3501, 0x0c},
+ {0x3662, 0x92},
+ {0x3714, 0x24},
+ {0x3739, 0x12},
+ {0x37c2, 0x04},
+ {0x37d9, 0x0c},
+ {0x37e2, 0x0a},
+ {0x3800, 0x00},
+ {0x3801, 0x00},
+ {0x3802, 0x00},
+ {0x3803, 0x08},
+ {0x3804, 0x10},
+ {0x3805, 0x8f},
+ {0x3806, 0x0c},
+ {0x3807, 0x47},
+ {0x3808, 0x10},
+ {0x3809, 0x70},
+ {0x380a, 0x0c},
+ {0x380b, 0x30},
+ {0x380c, 0x04},
+ {0x380d, 0x98},
+ {0x380e, 0x0c},
+ {0x380f, 0x7c},
+ {0x3810, 0x00},
+ {0x3811, 0x0f},
+ {0x3812, 0x00},
+ {0x3813, 0x09},
+ {0x3814, 0x01},
+ {0x3816, 0x01},
+ {0x3820, 0x88},
+ {0x3c8c, 0x19},
+ {0x4008, 0x02},
+ {0x4009, 0x0f},
+ {0x4050, 0x02},
+ {0x4051, 0x09},
+ {0x4501, 0x00},
+ {0x4505, 0x00},
+ {0x4837, 0x0e},
+ {0x5000, 0xff},
+ {0x5001, 0x0f},
+};
+
+static const struct ov13b10_reg mode_4160x3120_regs[] = {
+ {0x0305, 0xaf},
+ {0x3501, 0x0c},
+ {0x3662, 0x92},
+ {0x3714, 0x24},
+ {0x3739, 0x12},
+ {0x37c2, 0x04},
+ {0x37d9, 0x0c},
+ {0x37e2, 0x0a},
+ {0x3800, 0x00},
+ {0x3801, 0x00},
+ {0x3802, 0x00},
+ {0x3803, 0x08},
+ {0x3804, 0x10},
+ {0x3805, 0x8f},
+ {0x3806, 0x0c},
+ {0x3807, 0x47},
+ {0x3808, 0x10},
+ {0x3809, 0x40},
+ {0x380a, 0x0c},
+ {0x380b, 0x30},
+ {0x380c, 0x04},
+ {0x380d, 0x98},
+ {0x380e, 0x0c},
+ {0x380f, 0x7c},
+ {0x3810, 0x00},
+ {0x3811, 0x27},
+ {0x3812, 0x00},
+ {0x3813, 0x09},
+ {0x3814, 0x01},
+ {0x3816, 0x01},
+ {0x3820, 0x88},
+ {0x3c8c, 0x19},
+ {0x4008, 0x02},
+ {0x4009, 0x0f},
+ {0x4050, 0x02},
+ {0x4051, 0x09},
+ {0x4501, 0x00},
+ {0x4505, 0x00},
+ {0x4837, 0x0e},
+ {0x5000, 0xff},
+ {0x5001, 0x0f},
+};
+
+static const struct ov13b10_reg mode_4160x2340_regs[] = {
+ {0x0305, 0xaf},
+ {0x3501, 0x0c},
+ {0x3662, 0x92},
+ {0x3714, 0x24},
+ {0x3739, 0x12},
+ {0x37c2, 0x04},
+ {0x37d9, 0x0c},
+ {0x37e2, 0x0a},
+ {0x3800, 0x00},
+ {0x3801, 0x00},
+ {0x3802, 0x00},
+ {0x3803, 0x08},
+ {0x3804, 0x10},
+ {0x3805, 0x8f},
+ {0x3806, 0x0c},
+ {0x3807, 0x47},
+ {0x3808, 0x10},
+ {0x3809, 0x40},
+ {0x380a, 0x09},
+ {0x380b, 0x24},
+ {0x380c, 0x04},
+ {0x380d, 0x98},
+ {0x380e, 0x0c},
+ {0x380f, 0x7c},
+ {0x3810, 0x00},
+ {0x3811, 0x27},
+ {0x3812, 0x01},
+ {0x3813, 0x8f},
+ {0x3814, 0x01},
+ {0x3816, 0x01},
+ {0x3820, 0x88},
+ {0x3c8c, 0x19},
+ {0x4008, 0x02},
+ {0x4009, 0x0f},
+ {0x4050, 0x02},
+ {0x4051, 0x09},
+ {0x4501, 0x00},
+ {0x4505, 0x00},
+ {0x4837, 0x0e},
+ {0x5000, 0xff},
+ {0x5001, 0x0f},
+};
+
+static const struct ov13b10_reg mode_2104x1560_regs[] = {
+ {0x0305, 0xaf},
+ {0x3501, 0x06},
+ {0x3662, 0x88},
+ {0x3714, 0x28},
+ {0x3739, 0x10},
+ {0x37c2, 0x14},
+ {0x37d9, 0x06},
+ {0x37e2, 0x0c},
+ {0x3800, 0x00},
+ {0x3801, 0x00},
+ {0x3802, 0x00},
+ {0x3803, 0x08},
+ {0x3804, 0x10},
+ {0x3805, 0x8f},
+ {0x3806, 0x0c},
+ {0x3807, 0x47},
+ {0x3808, 0x08},
+ {0x3809, 0x38},
+ {0x380a, 0x06},
+ {0x380b, 0x18},
+ {0x380c, 0x04},
+ {0x380d, 0x98},
+ {0x380e, 0x06},
+ {0x380f, 0x3e},
+ {0x3810, 0x00},
+ {0x3811, 0x07},
+ {0x3812, 0x00},
+ {0x3813, 0x05},
+ {0x3814, 0x03},
+ {0x3816, 0x03},
+ {0x3820, 0x8b},
+ {0x3c8c, 0x18},
+ {0x4008, 0x00},
+ {0x4009, 0x05},
+ {0x4050, 0x00},
+ {0x4051, 0x05},
+ {0x4501, 0x08},
+ {0x4505, 0x00},
+ {0x4837, 0x0e},
+ {0x5000, 0xfd},
+ {0x5001, 0x0d},
+};
+
+static const struct ov13b10_reg mode_2080x1170_regs[] = {
+ {0x0305, 0xaf},
+ {0x3501, 0x06},
+ {0x3662, 0x88},
+ {0x3714, 0x28},
+ {0x3739, 0x10},
+ {0x37c2, 0x14},
+ {0x37d9, 0x06},
+ {0x37e2, 0x0c},
+ {0x3800, 0x00},
+ {0x3801, 0x00},
+ {0x3802, 0x00},
+ {0x3803, 0x08},
+ {0x3804, 0x10},
+ {0x3805, 0x8f},
+ {0x3806, 0x0c},
+ {0x3807, 0x47},
+ {0x3808, 0x08},
+ {0x3809, 0x20},
+ {0x380a, 0x04},
+ {0x380b, 0x92},
+ {0x380c, 0x04},
+ {0x380d, 0x98},
+ {0x380e, 0x06},
+ {0x380f, 0x3e},
+ {0x3810, 0x00},
+ {0x3811, 0x13},
+ {0x3812, 0x00},
+ {0x3813, 0xc9},
+ {0x3814, 0x03},
+ {0x3816, 0x03},
+ {0x3820, 0x8b},
+ {0x3c8c, 0x18},
+ {0x4008, 0x00},
+ {0x4009, 0x05},
+ {0x4050, 0x00},
+ {0x4051, 0x05},
+ {0x4501, 0x08},
+ {0x4505, 0x00},
+ {0x4837, 0x0e},
+ {0x5000, 0xfd},
+ {0x5001, 0x0d},
+};
+
+static const char * const ov13b10_test_pattern_menu[] = {
+ "Disabled",
+ "Vertical Color Bar Type 1",
+ "Vertical Color Bar Type 2",
+ "Vertical Color Bar Type 3",
+ "Vertical Color Bar Type 4"
+};
+
+/* Configurations for supported link frequencies */
+#define OV13B10_LINK_FREQ_560MHZ 560000000ULL
+#define OV13B10_LINK_FREQ_INDEX_0 0
+
+#define OV13B10_EXT_CLK 19200000
+#define OV13B10_DATA_LANES 4
+
+/*
+ * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample
+ * data rate => double data rate; number of lanes => 4; bits per pixel => 10
+ */
+static u64 link_freq_to_pixel_rate(u64 f)
+{
+ f *= 2 * OV13B10_DATA_LANES;
+ do_div(f, 10);
+
+ return f;
+}
+
+/* Menu items for LINK_FREQ V4L2 control */
+static const s64 link_freq_menu_items[] = {
+ OV13B10_LINK_FREQ_560MHZ
+};
+
+/* Link frequency configs */
+static const struct ov13b10_link_freq_config
+ link_freq_configs[] = {
+ {
+ .pixels_per_line = OV13B10_PPL_560MHZ,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mipi_data_rate_1120mbps),
+ .regs = mipi_data_rate_1120mbps,
+ }
+ }
+};
+
+/* Mode configs */
+static const struct ov13b10_mode supported_modes[] = {
+ {
+ .width = 4208,
+ .height = 3120,
+ .vts_def = OV13B10_VTS_30FPS,
+ .vts_min = OV13B10_VTS_30FPS,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_4208x3120_regs),
+ .regs = mode_4208x3120_regs,
+ },
+ .link_freq_index = OV13B10_LINK_FREQ_INDEX_0,
+ },
+ {
+ .width = 4160,
+ .height = 3120,
+ .vts_def = OV13B10_VTS_30FPS,
+ .vts_min = OV13B10_VTS_30FPS,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_4160x3120_regs),
+ .regs = mode_4160x3120_regs,
+ },
+ .link_freq_index = OV13B10_LINK_FREQ_INDEX_0,
+ },
+ {
+ .width = 4160,
+ .height = 2340,
+ .vts_def = OV13B10_VTS_30FPS,
+ .vts_min = OV13B10_VTS_30FPS,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_4160x2340_regs),
+ .regs = mode_4160x2340_regs,
+ },
+ .link_freq_index = OV13B10_LINK_FREQ_INDEX_0,
+ },
+ {
+ .width = 2104,
+ .height = 1560,
+ .vts_def = OV13B10_VTS_60FPS,
+ .vts_min = OV13B10_VTS_60FPS,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_2104x1560_regs),
+ .regs = mode_2104x1560_regs,
+ },
+ .link_freq_index = OV13B10_LINK_FREQ_INDEX_0,
+ },
+ {
+ .width = 2080,
+ .height = 1170,
+ .vts_def = OV13B10_VTS_60FPS,
+ .vts_min = OV13B10_VTS_60FPS,
+ .reg_list = {
+ .num_of_regs = ARRAY_SIZE(mode_2080x1170_regs),
+ .regs = mode_2080x1170_regs,
+ },
+ .link_freq_index = OV13B10_LINK_FREQ_INDEX_0,
+ }
+};
+
+struct ov13b10 {
+ 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 ov13b10_mode *cur_mode;
+
+ /* Mutex for serialized access */
+ struct mutex mutex;
+
+ /* Streaming on/off */
+ bool streaming;
+};
+
+#define to_ov13b10(_sd) container_of(_sd, struct ov13b10, sd)
+
+/* Read registers up to 4 at a time */
+static int ov13b10_read_reg(struct ov13b10 *ov13b,
+ u16 reg, u32 len, u32 *val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov13b->sd);
+ struct i2c_msg msgs[2];
+ u8 *data_be_p;
+ int ret;
+ __be32 data_be = 0;
+ __be16 reg_addr_be = cpu_to_be16(reg);
+
+ if (len > 4)
+ return -EINVAL;
+
+ data_be_p = (u8 *)&data_be;
+ /* Write register address */
+ msgs[0].addr = client->addr;
+ msgs[0].flags = 0;
+ msgs[0].len = 2;
+ msgs[0].buf = (u8 *)®_addr_be;
+
+ /* Read data from register */
+ msgs[1].addr = client->addr;
+ msgs[1].flags = I2C_M_RD;
+ msgs[1].len = len;
+ msgs[1].buf = &data_be_p[4 - len];
+
+ ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
+ if (ret != ARRAY_SIZE(msgs))
+ return -EIO;
+
+ *val = be32_to_cpu(data_be);
+
+ return 0;
+}
+
+/* Write registers up to 4 at a time */
+static int ov13b10_write_reg(struct ov13b10 *ov13b,
+ u16 reg, u32 len, u32 __val)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov13b->sd);
+ int buf_i, val_i;
+ u8 buf[6], *val_p;
+ __be32 val;
+
+ if (len > 4)
+ return -EINVAL;
+
+ buf[0] = reg >> 8;
+ buf[1] = reg & 0xff;
+
+ val = cpu_to_be32(__val);
+ val_p = (u8 *)&val;
+ buf_i = 2;
+ val_i = 4 - len;
+
+ while (val_i < 4)
+ buf[buf_i++] = val_p[val_i++];
+
+ if (i2c_master_send(client, buf, len + 2) != len + 2)
+ return -EIO;
+
+ return 0;
+}
+
+/* Write a list of registers */
+static int ov13b10_write_regs(struct ov13b10 *ov13b,
+ const struct ov13b10_reg *regs, u32 len)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov13b->sd);
+ int ret;
+ u32 i;
+
+ for (i = 0; i < len; i++) {
+ ret = ov13b10_write_reg(ov13b, regs[i].address, 1,
+ regs[i].val);
+ if (ret) {
+ dev_err_ratelimited(&client->dev,
+ "Failed to write reg 0x%4.4x. error = %d\n",
+ regs[i].address, ret);
+
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int ov13b10_write_reg_list(struct ov13b10 *ov13b,
+ const struct ov13b10_reg_list *r_list)
+{
+ return ov13b10_write_regs(ov13b, r_list->regs, r_list->num_of_regs);
+}
+
+/* Open sub-device */
+static int ov13b10_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
+{
+ const struct ov13b10_mode *default_mode = &supported_modes[0];
+ struct ov13b10 *ov13b = to_ov13b10(sd);
+ struct v4l2_mbus_framefmt *try_fmt = v4l2_subdev_get_try_format(sd,
+ fh->state,
+ 0);
+
+ mutex_lock(&ov13b->mutex);
+
+ /* Initialize try_fmt */
+ try_fmt->width = default_mode->width;
+ try_fmt->height = default_mode->height;
+ try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
+ try_fmt->field = V4L2_FIELD_NONE;
+
+ /* No crop or compose */
+ mutex_unlock(&ov13b->mutex);
+
+ return 0;
+}
+
+static int ov13b10_update_digital_gain(struct ov13b10 *ov13b, u32 d_gain)
+{
+ int ret;
+ u32 val;
+
+ /*
+ * 0x350C[7:6], 0x350B[7:0], 0x350A[1:0]
+ */
+
+ val = (d_gain & OV13B10_DGTL_GAIN_L_MASK) << OV13B10_DGTL_GAIN_L_SHIFT;
+ ret = ov13b10_write_reg(ov13b, OV13B10_REG_DGTL_GAIN_L,
+ OV13B10_REG_VALUE_08BIT, val);
+ if (ret)
+ return ret;
+
+ val = (d_gain >> OV13B10_DGTL_GAIN_M_SHIFT) & OV13B10_DGTL_GAIN_M_MASK;
+ ret = ov13b10_write_reg(ov13b, OV13B10_REG_DGTL_GAIN_M,
+ OV13B10_REG_VALUE_08BIT, val);
+ if (ret)
+ return ret;
+
+ val = (d_gain >> OV13B10_DGTL_GAIN_H_SHIFT) & OV13B10_DGTL_GAIN_H_MASK;
+ ret = ov13b10_write_reg(ov13b, OV13B10_REG_DGTL_GAIN_H,
+ OV13B10_REG_VALUE_08BIT, val);
+
+ return ret;
+}
+
+static int ov13b10_enable_test_pattern(struct ov13b10 *ov13b, u32 pattern)
+{
+ int ret;
+ u32 val;
+
+ ret = ov13b10_read_reg(ov13b, OV13B10_REG_TEST_PATTERN,
+ OV13B10_REG_VALUE_08BIT, &val);
+ if (ret)
+ return ret;
+
+ if (pattern) {
+ val &= OV13B10_TEST_PATTERN_MASK;
+ val |= ((pattern - 1) << OV13B10_TEST_PATTERN_BAR_SHIFT) |
+ OV13B10_TEST_PATTERN_ENABLE;
+ } else {
+ val &= ~OV13B10_TEST_PATTERN_ENABLE;
+ }
+
+ return ov13b10_write_reg(ov13b, OV13B10_REG_TEST_PATTERN,
+ OV13B10_REG_VALUE_08BIT, val);
+}
+
+static int ov13b10_set_ctrl_hflip(struct ov13b10 *ov13b, u32 ctrl_val)
+{
+ int ret;
+ u32 val;
+
+ ret = ov13b10_read_reg(ov13b, OV13B10_REG_FORMAT1,
+ OV13B10_REG_VALUE_08BIT, &val);
+ if (ret)
+ return ret;
+
+ ret = ov13b10_write_reg(ov13b, OV13B10_REG_FORMAT1,
+ OV13B10_REG_VALUE_08BIT,
+ ctrl_val ? val & ~BIT(3) : val);
+
+ if (ret)
+ return ret;
+
+ ret = ov13b10_read_reg(ov13b, OV13B10_REG_H_WIN_OFFSET,
+ OV13B10_REG_VALUE_08BIT, &val);
+ if (ret)
+ return ret;
+
+ /*
+ * Applying cropping offset to reverse the change of Bayer order
+ * after mirroring image
+ */
+ return ov13b10_write_reg(ov13b, OV13B10_REG_H_WIN_OFFSET,
+ OV13B10_REG_VALUE_08BIT,
+ ctrl_val ? ++val : val);
+}
+
+static int ov13b10_set_ctrl_vflip(struct ov13b10 *ov13b, u32 ctrl_val)
+{
+ int ret;
+ u32 val;
+
+ ret = ov13b10_read_reg(ov13b, OV13B10_REG_FORMAT1,
+ OV13B10_REG_VALUE_08BIT, &val);
+ if (ret)
+ return ret;
+
+ ret = ov13b10_write_reg(ov13b, OV13B10_REG_FORMAT1,
+ OV13B10_REG_VALUE_08BIT,
+ ctrl_val ? val | BIT(4) | BIT(5) : val);
+
+ if (ret)
+ return ret;
+
+ ret = ov13b10_read_reg(ov13b, OV13B10_REG_V_WIN_OFFSET,
+ OV13B10_REG_VALUE_08BIT, &val);
+ if (ret)
+ return ret;
+
+ /*
+ * Applying cropping offset to reverse the change of Bayer order
+ * after flipping image
+ */
+ return ov13b10_write_reg(ov13b, OV13B10_REG_V_WIN_OFFSET,
+ OV13B10_REG_VALUE_08BIT,
+ ctrl_val ? --val : val);
+}
+
+static int ov13b10_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct ov13b10 *ov13b = container_of(ctrl->handler,
+ struct ov13b10, ctrl_handler);
+ struct i2c_client *client = v4l2_get_subdevdata(&ov13b->sd);
+ s64 max;
+ int ret;
+
+ /* Propagate change of current control to all related controls */
+ switch (ctrl->id) {
+ case V4L2_CID_VBLANK:
+ /* Update max exposure while meeting expected vblanking */
+ max = ov13b->cur_mode->height + ctrl->val - 8;
+ __v4l2_ctrl_modify_range(ov13b->exposure,
+ ov13b->exposure->minimum,
+ max, ov13b->exposure->step, max);
+ break;
+ }
+
+ /*
+ * Applying V4L2 control value only happens
+ * when power is up for streaming
+ */
+ if (!pm_runtime_get_if_in_use(&client->dev))
+ return 0;
+
+ ret = 0;
+ switch (ctrl->id) {
+ case V4L2_CID_ANALOGUE_GAIN:
+ ret = ov13b10_write_reg(ov13b, OV13B10_REG_ANALOG_GAIN,
+ OV13B10_REG_VALUE_16BIT,
+ ctrl->val << 1);
+ break;
+ case V4L2_CID_DIGITAL_GAIN:
+ ret = ov13b10_update_digital_gain(ov13b, ctrl->val);
+ break;
+ case V4L2_CID_EXPOSURE:
+ ret = ov13b10_write_reg(ov13b, OV13B10_REG_EXPOSURE,
+ OV13B10_REG_VALUE_24BIT,
+ ctrl->val);
+ break;
+ case V4L2_CID_VBLANK:
+ ret = ov13b10_write_reg(ov13b, OV13B10_REG_VTS,
+ OV13B10_REG_VALUE_16BIT,
+ ov13b->cur_mode->height
+ + ctrl->val);
+ break;
+ case V4L2_CID_TEST_PATTERN:
+ ret = ov13b10_enable_test_pattern(ov13b, ctrl->val);
+ break;
+ case V4L2_CID_HFLIP:
+ ov13b10_set_ctrl_hflip(ov13b, ctrl->val);
+ break;
+ case V4L2_CID_VFLIP:
+ ov13b10_set_ctrl_vflip(ov13b, ctrl->val);
+ break;
+ default:
+ dev_info(&client->dev,
+ "ctrl(id:0x%x,val:0x%x) is not handled\n",
+ ctrl->id, ctrl->val);
+ break;
+ }
+
+ pm_runtime_put(&client->dev);
+
+ return ret;
+}
+
+static const struct v4l2_ctrl_ops ov13b10_ctrl_ops = {
+ .s_ctrl = ov13b10_set_ctrl,
+};
+
+static int ov13b10_enum_mbus_code(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_mbus_code_enum *code)
+{
+ /* Only one bayer order(GRBG) is supported */
+ if (code->index > 0)
+ return -EINVAL;
+
+ code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
+
+ return 0;
+}
+
+static int ov13b10_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 void ov13b10_update_pad_format(const struct ov13b10_mode *mode,
+ struct v4l2_subdev_format *fmt)
+{
+ fmt->format.width = mode->width;
+ fmt->format.height = mode->height;
+ fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
+ fmt->format.field = V4L2_FIELD_NONE;
+}
+
+static int ov13b10_do_get_pad_format(struct ov13b10 *ov13b,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct v4l2_mbus_framefmt *framefmt;
+ struct v4l2_subdev *sd = &ov13b->sd;
+
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
+ fmt->format = *framefmt;
+ } else {
+ ov13b10_update_pad_format(ov13b->cur_mode, fmt);
+ }
+
+ return 0;
+}
+
+static int ov13b10_get_pad_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ov13b10 *ov13b = to_ov13b10(sd);
+ int ret;
+
+ mutex_lock(&ov13b->mutex);
+ ret = ov13b10_do_get_pad_format(ov13b, sd_state, fmt);
+ mutex_unlock(&ov13b->mutex);
+
+ return ret;
+}
+
+static int
+ov13b10_set_pad_format(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_format *fmt)
+{
+ struct ov13b10 *ov13b = to_ov13b10(sd);
+ const struct ov13b10_mode *mode;
+ struct v4l2_mbus_framefmt *framefmt;
+ s32 vblank_def;
+ s32 vblank_min;
+ s64 h_blank;
+ s64 pixel_rate;
+ s64 link_freq;
+
+ mutex_lock(&ov13b->mutex);
+
+ /* Only one raw bayer(GRBG) order is supported */
+ if (fmt->format.code != MEDIA_BUS_FMT_SGRBG10_1X10)
+ fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
+
+ mode = v4l2_find_nearest_size(supported_modes,
+ ARRAY_SIZE(supported_modes),
+ width, height,
+ fmt->format.width, fmt->format.height);
+ ov13b10_update_pad_format(mode, fmt);
+ if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
+ framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
+ *framefmt = fmt->format;
+ } else {
+ ov13b->cur_mode = mode;
+ __v4l2_ctrl_s_ctrl(ov13b->link_freq, mode->link_freq_index);
+ link_freq = link_freq_menu_items[mode->link_freq_index];
+ pixel_rate = link_freq_to_pixel_rate(link_freq);
+ __v4l2_ctrl_s_ctrl_int64(ov13b->pixel_rate, pixel_rate);
+
+ /* Update limits and set FPS to default */
+ vblank_def = ov13b->cur_mode->vts_def -
+ ov13b->cur_mode->height;
+ vblank_min = ov13b->cur_mode->vts_min -
+ ov13b->cur_mode->height;
+ __v4l2_ctrl_modify_range(ov13b->vblank, vblank_min,
+ OV13B10_VTS_MAX
+ - ov13b->cur_mode->height,
+ 1,
+ vblank_def);
+ __v4l2_ctrl_s_ctrl(ov13b->vblank, vblank_def);
+ h_blank =
+ link_freq_configs[mode->link_freq_index].pixels_per_line
+ - ov13b->cur_mode->width;
+ __v4l2_ctrl_modify_range(ov13b->hblank, h_blank,
+ h_blank, 1, h_blank);
+ }
+
+ mutex_unlock(&ov13b->mutex);
+
+ return 0;
+}
+
+static int ov13b10_start_streaming(struct ov13b10 *ov13b)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov13b->sd);
+ const struct ov13b10_reg_list *reg_list;
+ int ret, link_freq_index;
+
+ /* Get out of from software reset */
+ ret = ov13b10_write_reg(ov13b, OV13B10_REG_SOFTWARE_RST,
+ OV13B10_REG_VALUE_08BIT, OV13B10_SOFTWARE_RST);
+ if (ret) {
+ dev_err(&client->dev, "%s failed to set powerup registers\n",
+ __func__);
+ return ret;
+ }
+
+ link_freq_index = ov13b->cur_mode->link_freq_index;
+ reg_list = &link_freq_configs[link_freq_index].reg_list;
+ ret = ov13b10_write_reg_list(ov13b, reg_list);
+ if (ret) {
+ dev_err(&client->dev, "%s failed to set plls\n", __func__);
+ return ret;
+ }
+
+ /* Apply default values of current mode */
+ reg_list = &ov13b->cur_mode->reg_list;
+ ret = ov13b10_write_reg_list(ov13b, reg_list);
+ if (ret) {
+ dev_err(&client->dev, "%s failed to set mode\n", __func__);
+ return ret;
+ }
+
+ /* Apply customized values from user */
+ ret = __v4l2_ctrl_handler_setup(ov13b->sd.ctrl_handler);
+ if (ret)
+ return ret;
+
+ return ov13b10_write_reg(ov13b, OV13B10_REG_MODE_SELECT,
+ OV13B10_REG_VALUE_08BIT,
+ OV13B10_MODE_STREAMING);
+}
+
+/* Stop streaming */
+static int ov13b10_stop_streaming(struct ov13b10 *ov13b)
+{
+ return ov13b10_write_reg(ov13b, OV13B10_REG_MODE_SELECT,
+ OV13B10_REG_VALUE_08BIT, OV13B10_MODE_STANDBY);
+}
+
+static int ov13b10_set_stream(struct v4l2_subdev *sd, int enable)
+{
+ struct ov13b10 *ov13b = to_ov13b10(sd);
+ struct i2c_client *client = v4l2_get_subdevdata(sd);
+ int ret = 0;
+
+ mutex_lock(&ov13b->mutex);
+ if (ov13b->streaming == enable) {
+ mutex_unlock(&ov13b->mutex);
+ return 0;
+ }
+
+ if (enable) {
+ ret = pm_runtime_resume_and_get(&client->dev);
+ if (ret < 0)
+ goto err_unlock;
+
+ /*
+ * Apply default & customized values
+ * and then start streaming.
+ */
+ ret = ov13b10_start_streaming(ov13b);
+ if (ret)
+ goto err_rpm_put;
+ } else {
+ ov13b10_stop_streaming(ov13b);
+ pm_runtime_put(&client->dev);
+ }
+
+ ov13b->streaming = enable;
+ mutex_unlock(&ov13b->mutex);
+
+ return ret;
+
+err_rpm_put:
+ pm_runtime_put(&client->dev);
+err_unlock:
+ mutex_unlock(&ov13b->mutex);
+
+ return ret;
+}
+
+static int __maybe_unused ov13b10_suspend(struct device *dev)
+{
+ struct v4l2_subdev *sd = dev_get_drvdata(dev);
+ struct ov13b10 *ov13b = to_ov13b10(sd);
+
+ if (ov13b->streaming)
+ ov13b10_stop_streaming(ov13b);
+
+ return 0;
+}
+
+static int __maybe_unused ov13b10_resume(struct device *dev)
+{
+ struct v4l2_subdev *sd = dev_get_drvdata(dev);
+ struct ov13b10 *ov13b = to_ov13b10(sd);
+ int ret;
+
+ if (ov13b->streaming) {
+ ret = ov13b10_start_streaming(ov13b);
+ if (ret)
+ goto error;
+ }
+
+ return 0;
+
+error:
+ ov13b10_stop_streaming(ov13b);
+ ov13b->streaming = false;
+ return ret;
+}
+
+/* Verify chip ID */
+static int ov13b10_identify_module(struct ov13b10 *ov13b)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov13b->sd);
+ int ret;
+ u32 val;
+
+ ret = ov13b10_read_reg(ov13b, OV13B10_REG_CHIP_ID,
+ OV13B10_REG_VALUE_24BIT, &val);
+ if (ret)
+ return ret;
+
+ if (val != OV13B10_CHIP_ID) {
+ dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
+ OV13B10_CHIP_ID, val);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+static const struct v4l2_subdev_video_ops ov13b10_video_ops = {
+ .s_stream = ov13b10_set_stream,
+};
+
+static const struct v4l2_subdev_pad_ops ov13b10_pad_ops = {
+ .enum_mbus_code = ov13b10_enum_mbus_code,
+ .get_fmt = ov13b10_get_pad_format,
+ .set_fmt = ov13b10_set_pad_format,
+ .enum_frame_size = ov13b10_enum_frame_size,
+};
+
+static const struct v4l2_subdev_ops ov13b10_subdev_ops = {
+ .video = &ov13b10_video_ops,
+ .pad = &ov13b10_pad_ops,
+};
+
+static const struct media_entity_operations ov13b10_subdev_entity_ops = {
+ .link_validate = v4l2_subdev_link_validate,
+};
+
+static const struct v4l2_subdev_internal_ops ov13b10_internal_ops = {
+ .open = ov13b10_open,
+};
+
+/* Initialize control handlers */
+static int ov13b10_init_controls(struct ov13b10 *ov13b)
+{
+ struct i2c_client *client = v4l2_get_subdevdata(&ov13b->sd);
+ struct v4l2_fwnode_device_properties props;
+ struct v4l2_ctrl_handler *ctrl_hdlr;
+ s64 exposure_max;
+ s64 vblank_def;
+ s64 vblank_min;
+ s64 hblank;
+ s64 pixel_rate_min;
+ s64 pixel_rate_max;
+ const struct ov13b10_mode *mode;
+ u32 max;
+ int ret;
+
+ ctrl_hdlr = &ov13b->ctrl_handler;
+ ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10);
+ if (ret)
+ return ret;
+
+ mutex_init(&ov13b->mutex);
+ ctrl_hdlr->lock = &ov13b->mutex;
+ max = ARRAY_SIZE(link_freq_menu_items) - 1;
+ ov13b->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr,
+ &ov13b10_ctrl_ops,
+ V4L2_CID_LINK_FREQ,
+ max,
+ 0,
+ link_freq_menu_items);
+ if (ov13b->link_freq)
+ ov13b->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]);
+ pixel_rate_min = 0;
+ /* By default, PIXEL_RATE is read only */
+ ov13b->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov13b10_ctrl_ops,
+ V4L2_CID_PIXEL_RATE,
+ pixel_rate_min, pixel_rate_max,
+ 1, pixel_rate_max);
+
+ mode = ov13b->cur_mode;
+ vblank_def = mode->vts_def - mode->height;
+ vblank_min = mode->vts_min - mode->height;
+ ov13b->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov13b10_ctrl_ops,
+ V4L2_CID_VBLANK,
+ vblank_min,
+ OV13B10_VTS_MAX - mode->height, 1,
+ vblank_def);
+
+ hblank = link_freq_configs[mode->link_freq_index].pixels_per_line -
+ mode->width;
+ ov13b->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov13b10_ctrl_ops,
+ V4L2_CID_HBLANK,
+ hblank, hblank, 1, hblank);
+ if (ov13b->hblank)
+ ov13b->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
+
+ exposure_max = mode->vts_def - 8;
+ ov13b->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov13b10_ctrl_ops,
+ V4L2_CID_EXPOSURE,
+ OV13B10_EXPOSURE_MIN,
+ exposure_max, OV13B10_EXPOSURE_STEP,
+ exposure_max);
+
+ v4l2_ctrl_new_std(ctrl_hdlr, &ov13b10_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
+ OV13B10_ANA_GAIN_MIN, OV13B10_ANA_GAIN_MAX,
+ OV13B10_ANA_GAIN_STEP, OV13B10_ANA_GAIN_DEFAULT);
+
+ /* Digital gain */
+ v4l2_ctrl_new_std(ctrl_hdlr, &ov13b10_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
+ OV13B10_DGTL_GAIN_MIN, OV13B10_DGTL_GAIN_MAX,
+ OV13B10_DGTL_GAIN_STEP, OV13B10_DGTL_GAIN_DEFAULT);
+
+ v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov13b10_ctrl_ops,
+ V4L2_CID_TEST_PATTERN,
+ ARRAY_SIZE(ov13b10_test_pattern_menu) - 1,
+ 0, 0, ov13b10_test_pattern_menu);
+
+ v4l2_ctrl_new_std(ctrl_hdlr, &ov13b10_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+ v4l2_ctrl_new_std(ctrl_hdlr, &ov13b10_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+
+ if (ctrl_hdlr->error) {
+ ret = ctrl_hdlr->error;
+ dev_err(&client->dev, "%s control init failed (%d)\n",
+ __func__, ret);
+ goto error;
+ }
+
+ ret = v4l2_fwnode_device_parse(&client->dev, &props);
+ if (ret)
+ goto error;
+
+ ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &ov13b10_ctrl_ops,
+ &props);
+ if (ret)
+ goto error;
+
+ ov13b->sd.ctrl_handler = ctrl_hdlr;
+
+ return 0;
+
+error:
+ v4l2_ctrl_handler_free(ctrl_hdlr);
+ mutex_destroy(&ov13b->mutex);
+
+ return ret;
+}
+
+static void ov13b10_free_controls(struct ov13b10 *ov13b)
+{
+ v4l2_ctrl_handler_free(ov13b->sd.ctrl_handler);
+ mutex_destroy(&ov13b->mutex);
+}
+
+static int ov13b10_check_hwcfg(struct device *dev)
+{
+ struct v4l2_fwnode_endpoint bus_cfg = {
+ .bus_type = V4L2_MBUS_CSI2_DPHY
+ };
+ struct fwnode_handle *ep;
+ struct fwnode_handle *fwnode = dev_fwnode(dev);
+ unsigned int i, j;
+ int ret;
+ u32 ext_clk;
+
+ if (!fwnode)
+ return -ENXIO;
+
+ ret = fwnode_property_read_u32(dev_fwnode(dev), "clock-frequency",
+ &ext_clk);
+ if (ret) {
+ dev_err(dev, "can't get clock frequency");
+ return ret;
+ }
+
+ if (ext_clk != OV13B10_EXT_CLK) {
+ dev_err(dev, "external clock %d is not supported",
+ ext_clk);
+ 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 != OV13B10_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 out_err;
+ }
+
+ if (!bus_cfg.nr_of_link_frequencies) {
+ dev_err(dev, "no link frequencies defined");
+ ret = -EINVAL;
+ goto out_err;
+ }
+
+ 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 out_err;
+ }
+ }
+
+out_err:
+ v4l2_fwnode_endpoint_free(&bus_cfg);
+
+ return ret;
+}
+
+static int ov13b10_probe(struct i2c_client *client)
+{
+ struct ov13b10 *ov13b;
+ int ret;
+
+ /* Check HW config */
+ ret = ov13b10_check_hwcfg(&client->dev);
+ if (ret) {
+ dev_err(&client->dev, "failed to check hwcfg: %d", ret);
+ return ret;
+ }
+
+ ov13b = devm_kzalloc(&client->dev, sizeof(*ov13b), GFP_KERNEL);
+ if (!ov13b)
+ return -ENOMEM;
+
+ /* Initialize subdev */
+ v4l2_i2c_subdev_init(&ov13b->sd, client, &ov13b10_subdev_ops);
+
+ /* Check module identity */
+ ret = ov13b10_identify_module(ov13b);
+ if (ret) {
+ dev_err(&client->dev, "failed to find sensor: %d\n", ret);
+ return ret;
+ }
+
+ /* Set default mode to max resolution */
+ ov13b->cur_mode = &supported_modes[0];
+
+ ret = ov13b10_init_controls(ov13b);
+ if (ret)
+ return ret;
+
+ /* Initialize subdev */
+ ov13b->sd.internal_ops = &ov13b10_internal_ops;
+ ov13b->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+ ov13b->sd.entity.ops = &ov13b10_subdev_entity_ops;
+ ov13b->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
+
+ /* Initialize source pad */
+ ov13b->pad.flags = MEDIA_PAD_FL_SOURCE;
+ ret = media_entity_pads_init(&ov13b->sd.entity, 1, &ov13b->pad);
+ if (ret) {
+ dev_err(&client->dev, "%s failed:%d\n", __func__, ret);
+ goto error_handler_free;
+ }
+
+ ret = v4l2_async_register_subdev_sensor(&ov13b->sd);
+ if (ret < 0)
+ goto error_media_entity;
+
+ /*
+ * 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;
+
+error_media_entity:
+ media_entity_cleanup(&ov13b->sd.entity);
+
+error_handler_free:
+ ov13b10_free_controls(ov13b);
+ dev_err(&client->dev, "%s failed:%d\n", __func__, ret);
+
+ return ret;
+}
+
+static int ov13b10_remove(struct i2c_client *client)
+{
+ struct v4l2_subdev *sd = i2c_get_clientdata(client);
+ struct ov13b10 *ov13b = to_ov13b10(sd);
+
+ v4l2_async_unregister_subdev(sd);
+ media_entity_cleanup(&sd->entity);
+ ov13b10_free_controls(ov13b);
+
+ pm_runtime_disable(&client->dev);
+
+ return 0;
+}
+
+static const struct dev_pm_ops ov13b10_pm_ops = {
+ SET_SYSTEM_SLEEP_PM_OPS(ov13b10_suspend, ov13b10_resume)
+};
+
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id ov13b10_acpi_ids[] = {
+ {"OVTIDB10"},
+ { /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(acpi, ov13b10_acpi_ids);
+#endif
+
+static struct i2c_driver ov13b10_i2c_driver = {
+ .driver = {
+ .name = "ov13b10",
+ .pm = &ov13b10_pm_ops,
+ .acpi_match_table = ACPI_PTR(ov13b10_acpi_ids),
+ },
+ .probe_new = ov13b10_probe,
+ .remove = ov13b10_remove,
+};
+
+module_i2c_driver(ov13b10_i2c_driver);
+
+MODULE_AUTHOR("Kao, Arec <arec.kao@intel.com>");
+MODULE_DESCRIPTION("Omnivision ov13b10 sensor driver");
+MODULE_LICENSE("GPL v2");
projects / thirdparty / kernel / linux.git / commitdiff
