/* * A V4L2 driver for OmniVision OV5647 cameras. * * Based on Samsung S5K6AAFX SXGA 1/6" 1.3M CMOS Image Sensor driver * Copyright (C) 2011 Sylwester Nawrocki * * Based on Omnivision OV7670 Camera Driver * Copyright (C) 2006-7 Jonathan Corbet * * Copyright (C) 2016, Synopsys, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation version 2. * * This program is distributed .as is. WITHOUT ANY WARRANTY of any * kind, whether express or implied; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define SENSOR_NAME "ov5647" /* * From the datasheet, "20ms after PWDN goes low or 20ms after RESETB goes * high if reset is inserted after PWDN goes high, host can access sensor's * SCCB to initialize sensor." */ #define PWDN_ACTIVE_DELAY_MS 20 #define MIPI_CTRL00_CLOCK_LANE_GATE BIT(5) #define MIPI_CTRL00_LINE_SYNC_ENABLE BIT(4) #define MIPI_CTRL00_BUS_IDLE BIT(2) #define MIPI_CTRL00_CLOCK_LANE_DISABLE BIT(0) #define OV5647_SW_STANDBY 0x0100 #define OV5647_SW_RESET 0x0103 #define OV5647_REG_CHIPID_H 0x300A #define OV5647_REG_CHIPID_L 0x300B #define OV5640_REG_PAD_OUT 0x300D #define OV5647_REG_EXP_HI 0x3500 #define OV5647_REG_EXP_MID 0x3501 #define OV5647_REG_EXP_LO 0x3502 #define OV5647_REG_AEC_AGC 0x3503 #define OV5647_REG_GAIN_HI 0x350A #define OV5647_REG_GAIN_LO 0x350B #define OV5647_REG_VTS_HI 0x380e #define OV5647_REG_VTS_LO 0x380f #define OV5647_REG_FRAME_OFF_NUMBER 0x4202 #define OV5647_REG_MIPI_CTRL00 0x4800 #define OV5647_REG_MIPI_CTRL14 0x4814 #define OV5647_REG_AWB 0x5001 #define REG_TERM 0xfffe #define VAL_TERM 0xfe #define REG_DLY 0xffff /* OV5647 native and active pixel array size */ #define OV5647_NATIVE_WIDTH 2624U #define OV5647_NATIVE_HEIGHT 1956U #define OV5647_PIXEL_ARRAY_LEFT 16U #define OV5647_PIXEL_ARRAY_TOP 6U #define OV5647_PIXEL_ARRAY_WIDTH 2592U #define OV5647_PIXEL_ARRAY_HEIGHT 1944U #define OV5647_VBLANK_MIN 24 #define OV5647_VTS_MAX 32767 #define OV5647_EXPOSURE_MIN 4 #define OV5647_EXPOSURE_STEP 1 #define OV5647_EXPOSURE_DEFAULT 1000 #define OV5647_EXPOSURE_MAX 65535 struct regval_list { u16 addr; u8 data; }; struct ov5647_mode { struct v4l2_mbus_framefmt format; /* Analog crop rectangle. */ struct v4l2_rect crop; u64 pixel_rate; /* HTS as defined in the register set (0x380C/0x380D) */ int hts; /* Default VTS value for this mode */ int vts_def; struct regval_list *reg_list; unsigned int num_regs; }; struct ov5647 { struct v4l2_subdev sd; struct media_pad pad; struct mutex lock; const struct ov5647_mode *mode; int power_count; struct clk *xclk; struct gpio_desc *pwdn; unsigned int flags; struct v4l2_ctrl_handler ctrls; struct v4l2_ctrl *pixel_rate; struct v4l2_ctrl *hblank; struct v4l2_ctrl *vblank; struct v4l2_ctrl *exposure; bool write_mode_regs; }; static inline struct ov5647 *to_state(struct v4l2_subdev *sd) { return container_of(sd, struct ov5647, sd); } static struct regval_list sensor_oe_disable_regs[] = { {0x3000, 0x00}, {0x3001, 0x00}, {0x3002, 0x00}, }; static struct regval_list sensor_oe_enable_regs[] = { {0x3000, 0x0f}, {0x3001, 0xff}, {0x3002, 0xe4}, }; static struct regval_list ov5647_640x480_8bit[] = { {0x0100, 0x00}, {0x0103, 0x01}, {0x3034, 0x08}, {0x3035, 0x21}, {0x3036, 0x46}, {0x303c, 0x11}, {0x3106, 0xf5}, {0x3821, 0x07}, {0x3820, 0x41}, {0x3827, 0xec}, {0x370c, 0x0f}, {0x3612, 0x59}, {0x3618, 0x00}, {0x5000, 0x06}, {0x5002, 0x41}, {0x5003, 0x08}, {0x5a00, 0x08}, {0x3000, 0x00}, {0x3001, 0x00}, {0x3002, 0x00}, {0x3016, 0x08}, {0x3017, 0xe0}, {0x3018, 0x44}, {0x301c, 0xf8}, {0x301d, 0xf0}, {0x3a18, 0x00}, {0x3a19, 0xf8}, {0x3c01, 0x80}, {0x3b07, 0x0c}, {0x380c, 0x07}, {0x380d, 0x68}, {0x3814, 0x31}, {0x3815, 0x31}, {0x3708, 0x64}, {0x3709, 0x52}, {0x3808, 0x02}, {0x3809, 0x80}, {0x380a, 0x01}, {0x380b, 0xE0}, {0x3801, 0x00}, {0x3802, 0x00}, {0x3803, 0x00}, {0x3804, 0x0a}, {0x3805, 0x3f}, {0x3806, 0x07}, {0x3807, 0xa1}, {0x3811, 0x08}, {0x3813, 0x02}, {0x3630, 0x2e}, {0x3632, 0xe2}, {0x3633, 0x23}, {0x3634, 0x44}, {0x3636, 0x06}, {0x3620, 0x64}, {0x3621, 0xe0}, {0x3600, 0x37}, {0x3704, 0xa0}, {0x3703, 0x5a}, {0x3715, 0x78}, {0x3717, 0x01}, {0x3731, 0x02}, {0x370b, 0x60}, {0x3705, 0x1a}, {0x3f05, 0x02}, {0x3f06, 0x10}, {0x3f01, 0x0a}, {0x3a08, 0x01}, {0x3a09, 0x27}, {0x3a0a, 0x00}, {0x3a0b, 0xf6}, {0x3a0d, 0x04}, {0x3a0e, 0x03}, {0x3a0f, 0x58}, {0x3a10, 0x50}, {0x3a1b, 0x58}, {0x3a1e, 0x50}, {0x3a11, 0x60}, {0x3a1f, 0x28}, {0x4001, 0x02}, {0x4004, 0x02}, {0x4000, 0x09}, {0x4837, 0x24}, {0x4050, 0x6e}, {0x4051, 0x8f}, {0x0100, 0x01}, }; static struct regval_list ov5647_2592x1944_10bit[] = { {0x0100, 0x00}, {0x0103, 0x01}, {0x3034, 0x1a}, {0x3035, 0x21}, {0x3036, 0x69}, {0x303c, 0x11}, {0x3106, 0xf5}, {0x3821, 0x06}, {0x3820, 0x00}, {0x3827, 0xec}, {0x370c, 0x03}, {0x3612, 0x5b}, {0x3618, 0x04}, {0x5000, 0x06}, {0x5002, 0x41}, {0x5003, 0x08}, {0x5a00, 0x08}, {0x3000, 0x00}, {0x3001, 0x00}, {0x3002, 0x00}, {0x3016, 0x08}, {0x3017, 0xe0}, {0x3018, 0x44}, {0x301c, 0xf8}, {0x301d, 0xf0}, {0x3a18, 0x00}, {0x3a19, 0xf8}, {0x3c01, 0x80}, {0x3b07, 0x0c}, {0x380c, 0x0b}, {0x380d, 0x1c}, {0x3814, 0x11}, {0x3815, 0x11}, {0x3708, 0x64}, {0x3709, 0x12}, {0x3808, 0x0a}, {0x3809, 0x20}, {0x380a, 0x07}, {0x380b, 0x98}, {0x3800, 0x00}, {0x3801, 0x00}, {0x3802, 0x00}, {0x3803, 0x00}, {0x3804, 0x0a}, {0x3805, 0x3f}, {0x3806, 0x07}, {0x3807, 0xa3}, {0x3811, 0x10}, {0x3813, 0x06}, {0x3630, 0x2e}, {0x3632, 0xe2}, {0x3633, 0x23}, {0x3634, 0x44}, {0x3636, 0x06}, {0x3620, 0x64}, {0x3621, 0xe0}, {0x3600, 0x37}, {0x3704, 0xa0}, {0x3703, 0x5a}, {0x3715, 0x78}, {0x3717, 0x01}, {0x3731, 0x02}, {0x370b, 0x60}, {0x3705, 0x1a}, {0x3f05, 0x02}, {0x3f06, 0x10}, {0x3f01, 0x0a}, {0x3a08, 0x01}, {0x3a09, 0x28}, {0x3a0a, 0x00}, {0x3a0b, 0xf6}, {0x3a0d, 0x08}, {0x3a0e, 0x06}, {0x3a0f, 0x58}, {0x3a10, 0x50}, {0x3a1b, 0x58}, {0x3a1e, 0x50}, {0x3a11, 0x60}, {0x3a1f, 0x28}, {0x4001, 0x02}, {0x4004, 0x04}, {0x4000, 0x09}, {0x4837, 0x19}, {0x4800, 0x24}, {0x3503, 0x03}, {0x0100, 0x01}, }; static struct regval_list ov5647_1080p30_10bit[] = { {0x0100, 0x00}, {0x0103, 0x01}, {0x3034, 0x1a}, {0x3035, 0x21}, {0x3036, 0x62}, {0x303c, 0x11}, {0x3106, 0xf5}, {0x3821, 0x06}, {0x3820, 0x00}, {0x3827, 0xec}, {0x370c, 0x03}, {0x3612, 0x5b}, {0x3618, 0x04}, {0x5000, 0x06}, {0x5002, 0x41}, {0x5003, 0x08}, {0x5a00, 0x08}, {0x3000, 0x00}, {0x3001, 0x00}, {0x3002, 0x00}, {0x3016, 0x08}, {0x3017, 0xe0}, {0x3018, 0x44}, {0x301c, 0xf8}, {0x301d, 0xf0}, {0x3a18, 0x00}, {0x3a19, 0xf8}, {0x3c01, 0x80}, {0x3b07, 0x0c}, {0x380c, 0x09}, {0x380d, 0x70}, {0x3814, 0x11}, {0x3815, 0x11}, {0x3708, 0x64}, {0x3709, 0x12}, {0x3808, 0x07}, {0x3809, 0x80}, {0x380a, 0x04}, {0x380b, 0x38}, {0x3800, 0x01}, {0x3801, 0x5c}, {0x3802, 0x01}, {0x3803, 0xb2}, {0x3804, 0x08}, {0x3805, 0xe3}, {0x3806, 0x05}, {0x3807, 0xf1}, {0x3811, 0x04}, {0x3813, 0x02}, {0x3630, 0x2e}, {0x3632, 0xe2}, {0x3633, 0x23}, {0x3634, 0x44}, {0x3636, 0x06}, {0x3620, 0x64}, {0x3621, 0xe0}, {0x3600, 0x37}, {0x3704, 0xa0}, {0x3703, 0x5a}, {0x3715, 0x78}, {0x3717, 0x01}, {0x3731, 0x02}, {0x370b, 0x60}, {0x3705, 0x1a}, {0x3f05, 0x02}, {0x3f06, 0x10}, {0x3f01, 0x0a}, {0x3a08, 0x01}, {0x3a09, 0x4b}, {0x3a0a, 0x01}, {0x3a0b, 0x13}, {0x3a0d, 0x04}, {0x3a0e, 0x03}, {0x3a0f, 0x58}, {0x3a10, 0x50}, {0x3a1b, 0x58}, {0x3a1e, 0x50}, {0x3a11, 0x60}, {0x3a1f, 0x28}, {0x4001, 0x02}, {0x4004, 0x04}, {0x4000, 0x09}, {0x4837, 0x19}, {0x4800, 0x34}, {0x3503, 0x03}, {0x0100, 0x01}, }; static struct regval_list ov5647_2x2binned_10bit[] = { {0x0100, 0x00}, {0x0103, 0x01}, {0x3034, 0x1A}, {0x3035, 0x21}, {0x3036, 0x62}, {0x303C, 0x11}, {0x3106, 0xF5}, {0x3827, 0xEC}, {0x370C, 0x03}, {0x3612, 0x59}, {0x3618, 0x00}, {0x5000, 0x06}, {0x5002, 0x41}, {0x5003, 0x08}, {0x5A00, 0x08}, {0x3000, 0x00}, {0x3001, 0x00}, {0x3002, 0x00}, {0x3016, 0x08}, {0x3017, 0xE0}, {0x3018, 0x44}, {0x301C, 0xF8}, {0x301D, 0xF0}, {0x3A18, 0x00}, {0x3A19, 0xF8}, {0x3C01, 0x80}, {0x3B07, 0x0C}, {0x3800, 0x00}, {0x3801, 0x00}, {0x3802, 0x00}, {0x3803, 0x00}, {0x3804, 0x0A}, {0x3805, 0x3F}, {0x3806, 0x07}, {0x3807, 0xA3}, {0x3808, 0x05}, {0x3809, 0x10}, {0x380A, 0x03}, {0x380B, 0xCC}, {0x380C, 0x07}, {0x380D, 0x68}, {0x3811, 0x0c}, {0x3813, 0x06}, {0x3814, 0x31}, {0x3815, 0x31}, {0x3630, 0x2E}, {0x3632, 0xE2}, {0x3633, 0x23}, {0x3634, 0x44}, {0x3636, 0x06}, {0x3620, 0x64}, {0x3621, 0xE0}, {0x3600, 0x37}, {0x3704, 0xA0}, {0x3703, 0x5A}, {0x3715, 0x78}, {0x3717, 0x01}, {0x3731, 0x02}, {0x370B, 0x60}, {0x3705, 0x1A}, {0x3F05, 0x02}, {0x3F06, 0x10}, {0x3F01, 0x0A}, {0x3A08, 0x01}, {0x3A09, 0x28}, {0x3A0A, 0x00}, {0x3A0B, 0xF6}, {0x3A0D, 0x08}, {0x3A0E, 0x06}, {0x3A0F, 0x58}, {0x3A10, 0x50}, {0x3A1B, 0x58}, {0x3A1E, 0x50}, {0x3A11, 0x60}, {0x3A1F, 0x28}, {0x4001, 0x02}, {0x4004, 0x04}, {0x4000, 0x09}, {0x4837, 0x16}, {0x4800, 0x24}, {0x3503, 0x03}, {0x3820, 0x41}, {0x3821, 0x07}, {0x350A, 0x00}, {0x350B, 0x10}, {0x3500, 0x00}, {0x3501, 0x1A}, {0x3502, 0xF0}, {0x3212, 0xA0}, {0x0100, 0x01}, }; static struct regval_list ov5647_640x480_10bit[] = { {0x0100, 0x00}, {0x0103, 0x01}, {0x3035, 0x11}, {0x3036, 0x46}, {0x303c, 0x11}, {0x3821, 0x07}, {0x3820, 0x41}, {0x370c, 0x03}, {0x3612, 0x59}, {0x3618, 0x00}, {0x5000, 0x06}, {0x5003, 0x08}, {0x5a00, 0x08}, {0x3000, 0xff}, {0x3001, 0xff}, {0x3002, 0xff}, {0x301d, 0xf0}, {0x3a18, 0x00}, {0x3a19, 0xf8}, {0x3c01, 0x80}, {0x3b07, 0x0c}, {0x380c, 0x07}, {0x380d, 0x3c}, {0x3814, 0x35}, {0x3815, 0x35}, {0x3708, 0x64}, {0x3709, 0x52}, {0x3808, 0x02}, {0x3809, 0x80}, {0x380a, 0x01}, {0x380b, 0xe0}, {0x3800, 0x00}, {0x3801, 0x10}, {0x3802, 0x00}, {0x3803, 0x00}, {0x3804, 0x0a}, {0x3805, 0x2f}, {0x3806, 0x07}, {0x3807, 0x9f}, {0x3630, 0x2e}, {0x3632, 0xe2}, {0x3633, 0x23}, {0x3634, 0x44}, {0x3620, 0x64}, {0x3621, 0xe0}, {0x3600, 0x37}, {0x3704, 0xa0}, {0x3703, 0x5a}, {0x3715, 0x78}, {0x3717, 0x01}, {0x3731, 0x02}, {0x370b, 0x60}, {0x3705, 0x1a}, {0x3f05, 0x02}, {0x3f06, 0x10}, {0x3f01, 0x0a}, {0x3a08, 0x01}, {0x3a09, 0x2e}, {0x3a0a, 0x00}, {0x3a0b, 0xfb}, {0x3a0d, 0x02}, {0x3a0e, 0x01}, {0x3a0f, 0x58}, {0x3a10, 0x50}, {0x3a1b, 0x58}, {0x3a1e, 0x50}, {0x3a11, 0x60}, {0x3a1f, 0x28}, {0x4001, 0x02}, {0x4004, 0x02}, {0x4000, 0x09}, {0x3000, 0x00}, {0x3001, 0x00}, {0x3002, 0x00}, {0x3017, 0xe0}, {0x301c, 0xfc}, {0x3636, 0x06}, {0x3016, 0x08}, {0x3827, 0xec}, {0x3018, 0x44}, {0x3035, 0x21}, {0x3106, 0xf5}, {0x3034, 0x1a}, {0x301c, 0xf8}, {0x4800, 0x34}, {0x3503, 0x03}, {0x0100, 0x01}, }; static struct ov5647_mode supported_modes_8bit[] = { /* * MODE 0: Original 8-bit VGA mode. * Uncentred crop (top left quarter) from 2x2 binned 1296x972 image. */ { .format = { .code = MEDIA_BUS_FMT_SBGGR8_1X8, .colorspace = V4L2_COLORSPACE_SRGB, .field = V4L2_FIELD_NONE, .width = 640, .height = 480 }, .crop = { .left = OV5647_PIXEL_ARRAY_LEFT, .top = OV5647_PIXEL_ARRAY_TOP, .width = 1280, .height = 960, }, .pixel_rate = 77291670, .hts = 1896, .vts_def = 0x3d8, .reg_list = ov5647_640x480_8bit, .num_regs = ARRAY_SIZE(ov5647_640x480_8bit) }, }; static struct ov5647_mode supported_modes_10bit[] = { /* * MODE 0: 2592x1944 full resolution full FOV 10-bit mode. */ { .format = { .code = MEDIA_BUS_FMT_SBGGR10_1X10, .colorspace = V4L2_COLORSPACE_SRGB, .field = V4L2_FIELD_NONE, .width = 2592, .height = 1944 }, .crop = { .left = OV5647_PIXEL_ARRAY_LEFT, .top = OV5647_PIXEL_ARRAY_TOP, .width = 2592, .height = 1944 }, .pixel_rate = 87500000, .hts = 2844, .vts_def = 0x7b0, .reg_list = ov5647_2592x1944_10bit, .num_regs = ARRAY_SIZE(ov5647_2592x1944_10bit) }, /* * MODE 1: 1080p30 10-bit mode. * Full resolution centre-cropped down to 1080p. */ { .format = { .code = MEDIA_BUS_FMT_SBGGR10_1X10, .colorspace = V4L2_COLORSPACE_SRGB, .field = V4L2_FIELD_NONE, .width = 1920, .height = 1080 }, .crop = { .left = 364, .top = 450, .width = 1928, .height = 1080, }, .pixel_rate = 81666700, .hts = 2416, .vts_def = 0x450, .reg_list = ov5647_1080p30_10bit, .num_regs = ARRAY_SIZE(ov5647_1080p30_10bit) }, /* * MODE 2: 2x2 binned full FOV 10-bit mode. */ { .format = { .code = MEDIA_BUS_FMT_SBGGR10_1X10, .colorspace = V4L2_COLORSPACE_SRGB, .field = V4L2_FIELD_NONE, .width = 1296, .height = 972 }, .crop = { .left = OV5647_PIXEL_ARRAY_LEFT, .top = OV5647_PIXEL_ARRAY_TOP, .width = 2592, .height = 1944, }, .pixel_rate = 81666700, .hts = 1896, .vts_def = 0x59b, .reg_list = ov5647_2x2binned_10bit, .num_regs = ARRAY_SIZE(ov5647_2x2binned_10bit) }, /* * MODE 3: 10-bit VGA full FOV mode 60fps. * 2x2 binned and subsampled down to VGA. */ { .format = { .code = MEDIA_BUS_FMT_SBGGR10_1X10, .colorspace = V4L2_COLORSPACE_SRGB, .field = V4L2_FIELD_NONE, .width = 640, .height = 480 }, .crop = { .left = OV5647_PIXEL_ARRAY_LEFT, .top = OV5647_PIXEL_ARRAY_TOP, .width = 2560, .height = 1920, }, .pixel_rate = 55000000, .hts = 1852, .vts_def = 0x1f8, .reg_list = ov5647_640x480_10bit, .num_regs = ARRAY_SIZE(ov5647_640x480_10bit) }, }; /* Use 2x2 binned 10-bit mode as default. */ #define OV5647_DEFAULT_MODE (&supported_modes_10bit[2]) static int ov5647_write16(struct v4l2_subdev *sd, u16 reg, u16 val) { int ret; unsigned char data[4] = { reg >> 8, reg & 0xff, val >> 8, val & 0xff}; struct i2c_client *client = v4l2_get_subdevdata(sd); ret = i2c_master_send(client, data, 4); /* * Writing the wrong number of bytes also needs to be flagged as an * error. Success needs to produce a 0 return code. */ if (ret == 4) { ret = 0; } else { dev_dbg(&client->dev, "%s: i2c write error, reg: %x\n", __func__, reg); if (ret >= 0) ret = -EINVAL; } return ret; } static int ov5647_write(struct v4l2_subdev *sd, u16 reg, u8 val) { int ret; unsigned char data[3] = { reg >> 8, reg & 0xff, val}; struct i2c_client *client = v4l2_get_subdevdata(sd); ret = i2c_master_send(client, data, 3); /* * Writing the wrong number of bytes also needs to be flagged as an * error. Success needs to produce a 0 return code. */ if (ret == 3) { ret = 0; } else { dev_dbg(&client->dev, "%s: i2c write error, reg: %x\n", __func__, reg); if (ret >= 0) ret = -EINVAL; } return ret; } static int ov5647_read(struct v4l2_subdev *sd, u16 reg, u8 *val) { int ret; unsigned char data_w[2] = { reg >> 8, reg & 0xff }; struct i2c_client *client = v4l2_get_subdevdata(sd); ret = i2c_master_send(client, data_w, 2); /* * A negative return code, or sending the wrong number of bytes, both * count as an error. */ if (ret != 2) { dev_dbg(&client->dev, "%s: i2c write error, reg: %x\n", __func__, reg); if (ret >= 0) ret = -EINVAL; return ret; } ret = i2c_master_recv(client, val, 1); /* * The only return value indicating success is 1. Anything else, even * a non-negative value, indicates something went wrong. */ if (ret == 1) { ret = 0; } else { dev_dbg(&client->dev, "%s: i2c read error, reg: %x\n", __func__, reg); if (ret >= 0) ret = -EINVAL; } return ret; } static int ov5647_write_array(struct v4l2_subdev *sd, struct regval_list *regs, int array_size) { int i, ret; for (i = 0; i < array_size; i++) { ret = ov5647_write(sd, regs[i].addr, regs[i].data); if (ret < 0) return ret; } return 0; } static int ov5647_set_virtual_channel(struct v4l2_subdev *sd, int channel) { u8 channel_id; int ret; ret = ov5647_read(sd, OV5647_REG_MIPI_CTRL14, &channel_id); if (ret < 0) return ret; channel_id &= ~(3 << 6); return ov5647_write(sd, OV5647_REG_MIPI_CTRL14, channel_id | (channel << 6)); } static int __sensor_init(struct v4l2_subdev *sd) { int ret; u8 resetval, rdval; struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov5647 *state = to_state(sd); ret = ov5647_read(sd, OV5647_SW_STANDBY, &rdval); if (ret < 0) return ret; if (state->write_mode_regs) { ret = ov5647_write_array(sd, state->mode->reg_list, state->mode->num_regs); if (ret < 0) { dev_err(&client->dev, "write sensor default regs error\n"); return ret; } state->write_mode_regs = false; } ret = ov5647_set_virtual_channel(sd, 0); if (ret < 0) return ret; ret = ov5647_read(sd, OV5647_SW_STANDBY, &resetval); if (ret < 0) return ret; if (!(resetval & 0x01)) { dev_err(&client->dev, "Device was in SW standby"); ret = ov5647_write(sd, OV5647_SW_STANDBY, 0x01); if (ret < 0) return ret; } return 0; } static int ov5647_stream_on(struct v4l2_subdev *sd) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct ov5647 *ov5647 = to_state(sd); u8 val = MIPI_CTRL00_BUS_IDLE; int ret; ret = __sensor_init(sd); if (ret < 0) { dev_err(&client->dev, "sensor_init failed\n"); return ret; } /* Apply customized values from user when stream starts */ ret = __v4l2_ctrl_handler_setup(sd->ctrl_handler); if (ret) return ret; if (ov5647->flags & V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK) val |= MIPI_CTRL00_CLOCK_LANE_GATE | MIPI_CTRL00_LINE_SYNC_ENABLE; ret = ov5647_write(sd, OV5647_REG_MIPI_CTRL00, val); if (ret < 0) return ret; ret = ov5647_write(sd, OV5647_REG_FRAME_OFF_NUMBER, 0x00); if (ret < 0) return ret; return ov5647_write(sd, OV5640_REG_PAD_OUT, 0x00); } static int ov5647_stream_off(struct v4l2_subdev *sd) { int ret; ret = ov5647_write(sd, OV5647_REG_MIPI_CTRL00, MIPI_CTRL00_CLOCK_LANE_GATE | MIPI_CTRL00_BUS_IDLE | MIPI_CTRL00_CLOCK_LANE_DISABLE); if (ret < 0) return ret; ret = ov5647_write(sd, OV5647_REG_FRAME_OFF_NUMBER, 0x0f); if (ret < 0) return ret; return ov5647_write(sd, OV5640_REG_PAD_OUT, 0x01); } static int set_sw_standby(struct v4l2_subdev *sd, bool standby) { int ret; u8 rdval; ret = ov5647_read(sd, OV5647_SW_STANDBY, &rdval); if (ret < 0) return ret; if (standby) rdval &= ~0x01; else rdval |= 0x01; return ov5647_write(sd, OV5647_SW_STANDBY, rdval); } static int ov5647_sensor_power(struct v4l2_subdev *sd, int on) { int ret = 0; struct ov5647 *ov5647 = to_state(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); mutex_lock(&ov5647->lock); if (on && !ov5647->power_count) { dev_dbg(&client->dev, "OV5647 power on\n"); if (ov5647->pwdn) { gpiod_set_value_cansleep(ov5647->pwdn, 0); msleep(PWDN_ACTIVE_DELAY_MS); } ret = clk_prepare_enable(ov5647->xclk); if (ret < 0) { dev_err(&client->dev, "clk prepare enable failed\n"); goto out; } ret = ov5647_write_array(sd, sensor_oe_enable_regs, ARRAY_SIZE(sensor_oe_enable_regs)); if (ret < 0) { clk_disable_unprepare(ov5647->xclk); dev_err(&client->dev, "write sensor_oe_enable_regs error\n"); goto out; } /* * Ensure streaming off to make clock lane go into LP-11 state. */ ret = ov5647_stream_off(sd); if (ret < 0) { clk_disable_unprepare(ov5647->xclk); dev_err(&client->dev, "Camera not available, check Power\n"); goto out; } /* Write out the register set over I2C on stream-on. */ ov5647->write_mode_regs = true; } else if (!on && ov5647->power_count == 1) { dev_dbg(&client->dev, "OV5647 power off\n"); ret = ov5647_write_array(sd, sensor_oe_disable_regs, ARRAY_SIZE(sensor_oe_disable_regs)); if (ret < 0) dev_dbg(&client->dev, "disable oe failed\n"); ret = set_sw_standby(sd, true); if (ret < 0) dev_dbg(&client->dev, "soft stby failed\n"); clk_disable_unprepare(ov5647->xclk); gpiod_set_value_cansleep(ov5647->pwdn, 1); } /* Update the power count. */ ov5647->power_count += on ? 1 : -1; WARN_ON(ov5647->power_count < 0); out: mutex_unlock(&ov5647->lock); return ret; } #ifdef CONFIG_VIDEO_ADV_DEBUG static int ov5647_sensor_get_register(struct v4l2_subdev *sd, struct v4l2_dbg_register *reg) { u8 val; int ret; ret = ov5647_read(sd, reg->reg & 0xff, &val); if (ret < 0) return ret; reg->val = val; reg->size = 1; return 0; } static int ov5647_sensor_set_register(struct v4l2_subdev *sd, const struct v4l2_dbg_register *reg) { return ov5647_write(sd, reg->reg & 0xff, reg->val & 0xff); } #endif /* * Subdev core operations registration */ static const struct v4l2_subdev_core_ops ov5647_subdev_core_ops = { .s_power = ov5647_sensor_power, #ifdef CONFIG_VIDEO_ADV_DEBUG .g_register = ov5647_sensor_get_register, .s_register = ov5647_sensor_set_register, #endif .subscribe_event = v4l2_ctrl_subdev_subscribe_event, .unsubscribe_event = v4l2_event_subdev_unsubscribe, }; static const struct v4l2_rect * __ov5647_get_pad_crop(struct ov5647 *ov5647, struct v4l2_subdev_pad_config *cfg, unsigned int pad, enum v4l2_subdev_format_whence which) { switch (which) { case V4L2_SUBDEV_FORMAT_TRY: return v4l2_subdev_get_try_crop(&ov5647->sd, cfg, pad); case V4L2_SUBDEV_FORMAT_ACTIVE: return &ov5647->mode->crop; } return NULL; } static int ov5647_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_selection *sel) { switch (sel->target) { case V4L2_SEL_TGT_CROP: { struct ov5647 *state = to_state(sd); mutex_lock(&state->lock); sel->r = *__ov5647_get_pad_crop(state, cfg, sel->pad, sel->which); mutex_unlock(&state->lock); return 0; } case V4L2_SEL_TGT_NATIVE_SIZE: sel->r.top = 0; sel->r.left = 0; sel->r.width = OV5647_NATIVE_WIDTH; sel->r.height = OV5647_NATIVE_HEIGHT; return 0; case V4L2_SEL_TGT_CROP_DEFAULT: case V4L2_SEL_TGT_CROP_BOUNDS: sel->r.top = OV5647_PIXEL_ARRAY_TOP; sel->r.left = OV5647_PIXEL_ARRAY_LEFT; sel->r.width = OV5647_PIXEL_ARRAY_WIDTH; sel->r.height = OV5647_PIXEL_ARRAY_HEIGHT; return 0; } return -EINVAL; } static int ov5647_s_stream(struct v4l2_subdev *sd, int enable) { struct ov5647 *state = to_state(sd); int ret = 0; mutex_lock(&state->lock); if (enable) ret = ov5647_stream_on(sd); else ret = ov5647_stream_off(sd); mutex_unlock(&state->lock); return ret; } static const struct v4l2_subdev_video_ops ov5647_subdev_video_ops = { .s_stream = ov5647_s_stream, }; static int ov5647_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_mbus_code_enum *code) { if (code->index == 0 && ARRAY_SIZE(supported_modes_8bit)) code->code = MEDIA_BUS_FMT_SBGGR8_1X8; else if (code->index == 0 && ARRAY_SIZE(supported_modes_8bit) == 0 && ARRAY_SIZE(supported_modes_10bit)) code->code = MEDIA_BUS_FMT_SBGGR10_1X10; else if (code->index == 1 && ARRAY_SIZE(supported_modes_8bit) && ARRAY_SIZE(supported_modes_10bit)) code->code = MEDIA_BUS_FMT_SBGGR10_1X10; else return -EINVAL; return 0; } static int ov5647_enum_frame_size(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_frame_size_enum *fse) { struct ov5647_mode *mode = NULL; if (fse->code == MEDIA_BUS_FMT_SBGGR8_1X8) { if (fse->index >= ARRAY_SIZE(supported_modes_8bit)) return -EINVAL; mode = &supported_modes_8bit[fse->index]; } else if (fse->code == MEDIA_BUS_FMT_SBGGR10_1X10) { if (fse->index >= ARRAY_SIZE(supported_modes_10bit)) return -EINVAL; mode = &supported_modes_10bit[fse->index]; } else { return -EINVAL; } fse->min_width = mode->format.width; fse->max_width = fse->min_width; fse->min_height = mode->format.height; fse->max_height = fse->min_height; return 0; } static int ov5647_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *format) { struct v4l2_mbus_framefmt *fmt = &format->format; struct ov5647 *state = to_state(sd); struct v4l2_mbus_framefmt *framefmt; const struct ov5647_mode *mode_8bit, *mode_10bit, *mode = NULL; if (format->pad != 0) return -EINVAL; mutex_lock(&state->lock); /* * Try to respect any given pixel format, otherwise try for a 10-bit * mode. */ mode_8bit = v4l2_find_nearest_size(supported_modes_8bit, ARRAY_SIZE(supported_modes_8bit), format.width, format.height, format->format.width, format->format.height); mode_10bit = v4l2_find_nearest_size(supported_modes_10bit, ARRAY_SIZE(supported_modes_10bit), format.width, format.height, format->format.width, format->format.height); if (format->format.code == MEDIA_BUS_FMT_SBGGR8_1X8 && mode_8bit) mode = mode_8bit; else if (format->format.code == MEDIA_BUS_FMT_SBGGR10_1X10 && mode_10bit) mode = mode_10bit; else if (mode_10bit) mode = mode_10bit; else mode = mode_8bit; if (!mode) { mutex_unlock(&state->lock); return -EINVAL; } *fmt = mode->format; if (format->which == V4L2_SUBDEV_FORMAT_TRY) { framefmt = v4l2_subdev_get_try_format(sd, cfg, format->pad); *framefmt = format->format; } else { /* * If we have changed modes, write the I2C register list on * a stream_on(). */ int exposure_max, exposure_def, hblank; if (state->mode != mode) state->write_mode_regs = true; state->mode = mode; __v4l2_ctrl_modify_range(state->pixel_rate, mode->pixel_rate, mode->pixel_rate, 1, mode->pixel_rate); hblank = mode->hts - mode->format.width; __v4l2_ctrl_modify_range(state->hblank, hblank, hblank, 1, hblank); __v4l2_ctrl_modify_range(state->vblank, OV5647_VBLANK_MIN, OV5647_VTS_MAX - mode->format.height, 1, mode->vts_def - mode->format.height); __v4l2_ctrl_s_ctrl(state->vblank, mode->vts_def - mode->format.height); exposure_max = mode->vts_def - 4; exposure_def = (exposure_max < OV5647_EXPOSURE_DEFAULT) ? exposure_max : OV5647_EXPOSURE_DEFAULT; __v4l2_ctrl_modify_range(state->exposure, state->exposure->minimum, exposure_max, state->exposure->step, exposure_def); } mutex_unlock(&state->lock); return 0; } static int ov5647_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_pad_config *cfg, struct v4l2_subdev_format *format) { struct v4l2_mbus_framefmt *fmt = &format->format; struct ov5647 *state = to_state(sd); if (format->pad != 0) return -EINVAL; mutex_lock(&state->lock); if (format->which == V4L2_SUBDEV_FORMAT_TRY) *fmt = *v4l2_subdev_get_try_format(sd, cfg, format->pad); else *fmt = state->mode->format; mutex_unlock(&state->lock); return 0; } static const struct v4l2_subdev_pad_ops ov5647_subdev_pad_ops = { .enum_mbus_code = ov5647_enum_mbus_code, .set_fmt = ov5647_set_fmt, .get_fmt = ov5647_get_fmt, .get_selection = ov5647_get_selection, .enum_frame_size = ov5647_enum_frame_size, }; static const struct v4l2_subdev_ops ov5647_subdev_ops = { .core = &ov5647_subdev_core_ops, .video = &ov5647_subdev_video_ops, .pad = &ov5647_subdev_pad_ops, }; static int ov5647_detect(struct v4l2_subdev *sd) { u8 read; int ret; struct i2c_client *client = v4l2_get_subdevdata(sd); ret = ov5647_write(sd, OV5647_SW_RESET, 0x01); if (ret < 0) return ret; ret = ov5647_read(sd, OV5647_REG_CHIPID_H, &read); if (ret < 0) return ret; if (read != 0x56) { dev_err(&client->dev, "ID High expected 0x56 got %x", read); return -ENODEV; } ret = ov5647_read(sd, OV5647_REG_CHIPID_L, &read); if (ret < 0) return ret; if (read != 0x47) { dev_err(&client->dev, "ID Low expected 0x47 got %x", read); return -ENODEV; } return ov5647_write(sd, OV5647_SW_RESET, 0x00); } static int ov5647_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { struct v4l2_mbus_framefmt *format = v4l2_subdev_get_try_format(sd, fh->pad, 0); struct v4l2_rect *crop = v4l2_subdev_get_try_crop(sd, fh->pad, 0); struct ov5647 *state = to_state(sd); crop->left = OV5647_PIXEL_ARRAY_LEFT; crop->top = OV5647_PIXEL_ARRAY_TOP; crop->width = OV5647_PIXEL_ARRAY_WIDTH; crop->height = OV5647_PIXEL_ARRAY_HEIGHT; /* Set the default format to the same as the sensor. */ *format = state->mode->format; return 0; } static const struct v4l2_subdev_internal_ops ov5647_subdev_internal_ops = { .open = ov5647_open, }; static int ov5647_parse_dt(struct device_node *np, struct ov5647 *sensor) { struct v4l2_fwnode_endpoint bus_cfg = { .bus_type = 0 }; struct device_node *ep; int ret; ep = of_graph_get_next_endpoint(np, NULL); if (!ep) return -EINVAL; ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(ep), &bus_cfg); if (!ret) sensor->flags = bus_cfg.bus.mipi_csi2.flags; of_node_put(ep); return ret; } static int ov5647_s_auto_white_balance(struct v4l2_subdev *sd, u32 val) { /* non-zero turns on AWB */ return ov5647_write(sd, OV5647_REG_AWB, val ? 1 : 0); } static int ov5647_s_autogain(struct v4l2_subdev *sd, u32 val) { int ret; u8 reg; /* non-zero turns on AGC by clearing bit 1 */ ret = ov5647_read(sd, OV5647_REG_AEC_AGC, ®); if (ret == 0) ret = ov5647_write(sd, OV5647_REG_AEC_AGC, val ? reg & ~2 : reg | 2); return ret; } static int ov5647_s_exposure_auto(struct v4l2_subdev *sd, u32 val) { int ret; u8 reg; /* Everything except V4L2_EXPOSURE_MANUAL turns on AEC by * clearing bit 0 */ ret = ov5647_read(sd, OV5647_REG_AEC_AGC, ®); if (ret == 0) ret = ov5647_write(sd, OV5647_REG_AEC_AGC, val == V4L2_EXPOSURE_MANUAL ? reg | 1 : reg & ~1); return ret; } static int ov5647_s_analogue_gain(struct v4l2_subdev *sd, u32 val) { int ret; /* 10 bits of gain, 2 in the high register */ ret = ov5647_write(sd, OV5647_REG_GAIN_HI, (val >> 8) & 3); if (ret == 0) ret = ov5647_write(sd, OV5647_REG_GAIN_LO, val & 0xff); return ret; } static int ov5647_s_exposure(struct v4l2_subdev *sd, u32 val) { int ret; /* Sensor has 20 bits, but the bottom 4 bits are fractions of a line * which we leave as zero (and don't receive in "val"). */ ret = ov5647_write(sd, OV5647_REG_EXP_HI, (val >> 12) & 0xf); if (ret == 0) ov5647_write(sd, OV5647_REG_EXP_MID, (val >> 4) & 0xff); if (ret == 0) ov5647_write(sd, OV5647_REG_EXP_LO, (val & 0xf) << 4); return ret; } static int ov5647_s_ctrl(struct v4l2_ctrl *ctrl) { struct ov5647 *state = container_of(ctrl->handler, struct ov5647, ctrls); struct v4l2_subdev *sd = &state->sd; struct i2c_client *client = v4l2_get_subdevdata(sd); int ret = 0; /* v4l2_ctrl_lock() locks our own mutex */ if (ctrl->id == V4L2_CID_VBLANK) { int exposure_max, exposure_def; /* Update max exposure while meeting expected vblanking */ exposure_max = state->mode->format.height + ctrl->val - 4; exposure_def = (exposure_max < OV5647_EXPOSURE_DEFAULT) ? exposure_max : OV5647_EXPOSURE_DEFAULT; __v4l2_ctrl_modify_range(state->exposure, state->exposure->minimum, exposure_max, state->exposure->step, exposure_def); } /* * If the device is not powered up by the host driver do * not apply any controls to H/W at this time. Instead * the controls will be restored right after power-up. */ if (state->power_count == 0) return 0; switch (ctrl->id) { case V4L2_CID_AUTO_WHITE_BALANCE: ret = ov5647_s_auto_white_balance(sd, ctrl->val); break; case V4L2_CID_AUTOGAIN: ret = ov5647_s_autogain(sd, ctrl->val); break; case V4L2_CID_EXPOSURE_AUTO: ret = ov5647_s_exposure_auto(sd, ctrl->val); break; case V4L2_CID_ANALOGUE_GAIN: ret = ov5647_s_analogue_gain(sd, ctrl->val); break; case V4L2_CID_EXPOSURE: ret = ov5647_s_exposure(sd, ctrl->val); break; case V4L2_CID_PIXEL_RATE: /* Read-only, but we adjust it based on mode. */ break; case V4L2_CID_HBLANK: /* Read-only, but we adjust it based on mode. */ break; case V4L2_CID_VBLANK: ret = ov5647_write16(sd, OV5647_REG_VTS_HI, state->mode->format.height + ctrl->val); break; default: dev_info(&client->dev, "ctrl(id:0x%x,val:0x%x) is not handled\n", ctrl->id, ctrl->val); ret = -EINVAL; break; } return ret; } static const struct v4l2_ctrl_ops ov5647_ctrl_ops = { .s_ctrl = ov5647_s_ctrl, }; static int ov5647_probe(struct i2c_client *client) { struct device *dev = &client->dev; struct ov5647 *sensor; int ret; struct v4l2_subdev *sd; struct device_node *np = client->dev.of_node; u32 xclk_freq; int hblank, exposure_max, exposure_def; struct v4l2_fwnode_device_properties props; sensor = devm_kzalloc(dev, sizeof(*sensor), GFP_KERNEL); if (!sensor) return -ENOMEM; if (IS_ENABLED(CONFIG_OF) && np) { ret = ov5647_parse_dt(np, sensor); if (ret) { dev_err(dev, "DT parsing error: %d\n", ret); return ret; } } /* get system clock (xclk) */ sensor->xclk = devm_clk_get(dev, NULL); if (IS_ERR(sensor->xclk)) { dev_err(dev, "could not get xclk"); return PTR_ERR(sensor->xclk); } xclk_freq = clk_get_rate(sensor->xclk); if (xclk_freq != 25000000) { dev_err(dev, "Unsupported clock frequency: %u\n", xclk_freq); return -EINVAL; } /* Request the power down GPIO asserted */ sensor->pwdn = devm_gpiod_get_optional(&client->dev, "pwdn", GPIOD_OUT_HIGH); mutex_init(&sensor->lock); /* Initialise controls. */ v4l2_ctrl_handler_init(&sensor->ctrls, 9); v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_AUTOGAIN, 0, /* min */ 1, /* max */ 1, /* step */ 0); /* default */ v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_AUTO_WHITE_BALANCE, 0, /* min */ 1, /* max */ 1, /* step */ 0); /* default */ v4l2_ctrl_new_std_menu(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_EXPOSURE_AUTO, V4L2_EXPOSURE_MANUAL, /* max */ 0, /* skip_mask */ V4L2_EXPOSURE_MANUAL); /* default */ v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, 16, /* min, 16 = 1.0x */ 1023, /* max (10 bits) */ 1, /* step */ 32); /* default, 32 = 2.0x */ /* Set the default mode before we init the subdev */ sensor->mode = OV5647_DEFAULT_MODE; exposure_max = sensor->mode->vts_def - 4; exposure_def = (exposure_max < OV5647_EXPOSURE_DEFAULT) ? exposure_max : OV5647_EXPOSURE_DEFAULT; sensor->exposure = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_EXPOSURE, OV5647_EXPOSURE_MIN, exposure_max, OV5647_EXPOSURE_STEP, exposure_def); /* By default, PIXEL_RATE is read only, but it does change per mode */ sensor->pixel_rate = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_PIXEL_RATE, sensor->mode->pixel_rate, sensor->mode->pixel_rate, 1, sensor->mode->pixel_rate); /* By default, HBLANK is read only, but it does change per mode */ hblank = sensor->mode->hts - sensor->mode->format.width; sensor->hblank = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_HBLANK, hblank, hblank, 1, hblank); sensor->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; sensor->vblank = v4l2_ctrl_new_std(&sensor->ctrls, &ov5647_ctrl_ops, V4L2_CID_VBLANK, OV5647_VBLANK_MIN, OV5647_VTS_MAX - sensor->mode->format.height, 1, sensor->mode->vts_def - sensor->mode->format.height); if (sensor->ctrls.error) { ret = sensor->ctrls.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(&sensor->ctrls, &ov5647_ctrl_ops, &props); if (ret) goto error; sensor->sd.ctrl_handler = &sensor->ctrls; /* Write out the register set over I2C on stream-on. */ sensor->write_mode_regs = true; sd = &sensor->sd; v4l2_i2c_subdev_init(sd, client, &ov5647_subdev_ops); sensor->sd.internal_ops = &ov5647_subdev_internal_ops; sensor->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; sensor->pad.flags = MEDIA_PAD_FL_SOURCE; sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; ret = media_entity_pads_init(&sd->entity, 1, &sensor->pad); if (ret < 0) goto mutex_remove; if (sensor->pwdn) { gpiod_set_value_cansleep(sensor->pwdn, 0); msleep(PWDN_ACTIVE_DELAY_MS); } ret = ov5647_detect(sd); gpiod_set_value_cansleep(sensor->pwdn, 1); if (ret < 0) goto error; ret = v4l2_async_register_subdev(sd); if (ret < 0) goto error; dev_dbg(dev, "OmniVision OV5647 camera driver probed\n"); return 0; error: media_entity_cleanup(&sd->entity); mutex_remove: v4l2_ctrl_handler_free(&sensor->ctrls); mutex_destroy(&sensor->lock); return ret; } static int ov5647_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct ov5647 *ov5647 = to_state(sd); v4l2_async_unregister_subdev(&ov5647->sd); media_entity_cleanup(&ov5647->sd.entity); v4l2_ctrl_handler_free(&ov5647->ctrls); v4l2_device_unregister_subdev(sd); mutex_destroy(&ov5647->lock); return 0; } static const struct i2c_device_id ov5647_id[] = { { "ov5647", 0 }, { } }; MODULE_DEVICE_TABLE(i2c, ov5647_id); #if IS_ENABLED(CONFIG_OF) static const struct of_device_id ov5647_of_match[] = { { .compatible = "ovti,ov5647" }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, ov5647_of_match); #endif static struct i2c_driver ov5647_driver = { .driver = { .of_match_table = of_match_ptr(ov5647_of_match), .name = SENSOR_NAME, }, .probe_new = ov5647_probe, .remove = ov5647_remove, .id_table = ov5647_id, }; module_i2c_driver(ov5647_driver); MODULE_AUTHOR("Ramiro Oliveira "); MODULE_DESCRIPTION("A low-level driver for OmniVision ov5647 sensors"); MODULE_LICENSE("GPL v2");