// SPDX-License-Identifier: GPL-2.0 /* * hi556 driver * * Copyright (C) 2022 Rockchip Electronics Co., Ltd. * * V0.0X01.0X00 init version */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* verify default register values */ //#define CHECK_REG_VALUE #define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x00) #ifndef V4L2_CID_DIGITAL_GAIN #define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN #endif /* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */ #define MIPI_FREQ 440000000U #define HI556_PIXEL_RATE (440000000LL * 2LL * 2LL / 10) #define HI556_XVCLK_FREQ 24000000 #define CHIP_ID 0x0556 #define HI556_REG_CHIP_ID 0x0f16 #define HI556_REG_CTRL_MODE 0x0A00 #define HI556_MODE_SW_STANDBY 0x00 #define HI556_MODE_STREAMING 0x01 #define HI556_REG_EXPOSURE_H 0x0073 #define HI556_REG_EXPOSURE_M 0x0074 #define HI556_REG_EXPOSURE_L 0x0075 #define HI556_FETCH_HIGH_BYTE_EXP(VAL) (((VAL) >> 16) & 0xF) /* 4 Bits */ #define HI556_FETCH_MIDDLE_BYTE_EXP(VAL) (((VAL) >> 8) & 0xFF) /* 8 Bits */ #define HI556_FETCH_LOW_BYTE_EXP(VAL) ((VAL) & 0xFF) /* 8 Bits */ #define HI556_EXPOSURE_MIN 4 #define HI556_EXPOSURE_STEP 1 #define HI556_VTS_MAX 0x7fff #define HI556_REG_GAIN 0x0077 #define HI556_GAIN_MASK 0xff #define ANALOG_GAIN_MIN 0x00 #define ANALOG_GAIN_MAX 0xF0 #define ANALOG_GAIN_STEP 1 #define ANALOG_GAIN_DEFAULT 0x10 #define HI556_REG_GROUP 0x0046 #define HI556_REG_TEST_PATTERN 0x0A05 #define HI556_TEST_PATTERN_ENABLE 0x01 #define HI556_TEST_PATTERN_DISABLE 0x0 #define HI556_REG_TEST_PATTERN_SELECT 0x0201 #define HI556_REG_VTS 0x0006 #define HI556_FLIP_MIRROR_REG 0x000e #define HI556_FETCH_MIRROR(VAL, ENABLE) (ENABLE ? VAL | 0x01 : VAL & 0xfe) #define HI556_FETCH_FLIP(VAL, ENABLE) (ENABLE ? VAL | 0x02 : VAL & 0xfd) #define REG_NULL 0xFFFF #define DELAY_MS 0xEEEE /* Array delay token */ #define HI556_REG_VALUE_08BIT 1 #define HI556_REG_VALUE_16BIT 2 #define HI556_REG_VALUE_24BIT 3 #define HI556_LANES 2 #define HI556_BITS_PER_SAMPLE 10 #define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default" #define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep" #define HI556_NAME "hi556" #define HI556_MEDIA_BUS_FMT MEDIA_BUS_FMT_SGBRG10_1X10 struct hi556_otp_info { int flag; // bit[7]: info, bit[6]:wb int module_id; int lens_id; int year; int month; int day; int rg_ratio; int bg_ratio; }; static const char * const hi556_supply_names[] = { "avdd", /* Analog power */ "dovdd", /* Digital I/O power */ "dvdd", /* Digital core power */ }; #define HI556_NUM_SUPPLIES ARRAY_SIZE(hi556_supply_names) struct regval { u16 addr; u16 val; }; struct hi556_mode { u32 width; u32 height; struct v4l2_fract max_fps; u32 hts_def; u32 vts_def; u32 exp_def; const struct regval *reg_list; u32 hdr_mode; }; struct hi556 { struct i2c_client *client; struct clk *xvclk; struct gpio_desc *power_gpio; struct gpio_desc *reset_gpio; struct gpio_desc *pwdn_gpio; struct regulator_bulk_data supplies[HI556_NUM_SUPPLIES]; struct pinctrl *pinctrl; struct pinctrl_state *pins_default; struct pinctrl_state *pins_sleep; struct v4l2_subdev subdev; struct media_pad pad; struct v4l2_ctrl_handler ctrl_handler; struct v4l2_ctrl *exposure; struct v4l2_ctrl *anal_gain; struct v4l2_ctrl *digi_gain; struct v4l2_ctrl *hblank; struct v4l2_ctrl *vblank; struct v4l2_ctrl *test_pattern; struct mutex mutex; bool streaming; bool power_on; const struct hi556_mode *cur_mode; unsigned int lane_num; unsigned int cfg_num; unsigned int pixel_rate; u32 module_index; struct hi556_otp_info *otp; const char *module_facing; const char *module_name; const char *len_name; struct rkmodule_awb_cfg awb_cfg; }; #define to_hi556(sd) container_of(sd, struct hi556, subdev) /* * Xclk 24Mhz * Pclk 176Mhz * linelength 2816(0xb00) * framelength 1988(0x7c0) * grabwindow_width 2592 * grabwindow_height 1944 * max_framerate 30fps * MIPI speed(Mbps) : 840Mbps x 2Lane */ static const struct regval hi556_global_regs[] = { {0x0a00, 0x0000}, {0x0e00, 0x0102}, {0x0e02, 0x0102}, {0x0e0c, 0x0100}, {0x2000, 0x7400}, {0x2002, 0x001c}, {0x2004, 0x0242}, {0x2006, 0x0942}, {0x2008, 0x7007}, {0x200a, 0x0fd9}, {0x200c, 0x0259}, {0x200e, 0x7008}, {0x2010, 0x160e}, {0x2012, 0x0047}, {0x2014, 0x2118}, {0x2016, 0x0041}, {0x2018, 0x00d8}, {0x201a, 0x0145}, {0x201c, 0x0006}, {0x201e, 0x0181}, {0x2020, 0x13cc}, {0x2022, 0x2057}, {0x2024, 0x7001}, {0x2026, 0x0fca}, {0x2028, 0x00cb}, {0x202a, 0x009f}, {0x202c, 0x7002}, {0x202e, 0x13cc}, {0x2030, 0x019b}, {0x2032, 0x014d}, {0x2034, 0x2987}, {0x2036, 0x2766}, {0x2038, 0x0020}, {0x203a, 0x2060}, {0x203c, 0x0e5d}, {0x203e, 0x181d}, {0x2040, 0x2066}, {0x2042, 0x20c4}, {0x2044, 0x5000}, {0x2046, 0x0005}, {0x2048, 0x0000}, {0x204a, 0x01db}, {0x204c, 0x025a}, {0x204e, 0x00c0}, {0x2050, 0x0005}, {0x2052, 0x0006}, {0x2054, 0x0ad9}, {0x2056, 0x0259}, {0x2058, 0x0618}, {0x205a, 0x0258}, {0x205c, 0x2266}, {0x205e, 0x20c8}, {0x2060, 0x2060}, {0x2062, 0x707b}, {0x2064, 0x0fdd}, {0x2066, 0x81b8}, {0x2068, 0x5040}, {0x206a, 0x0020}, {0x206c, 0x5060}, {0x206e, 0x3143}, {0x2070, 0x5081}, {0x2072, 0x025c}, {0x2074, 0x7800}, {0x2076, 0x7400}, {0x2078, 0x001c}, {0x207a, 0x0242}, {0x207c, 0x0942}, {0x207e, 0x0bd9}, {0x2080, 0x0259}, {0x2082, 0x7008}, {0x2084, 0x160e}, {0x2086, 0x0047}, {0x2088, 0x2118}, {0x208a, 0x0041}, {0x208c, 0x00d8}, {0x208e, 0x0145}, {0x2090, 0x0006}, {0x2092, 0x0181}, {0x2094, 0x13cc}, {0x2096, 0x2057}, {0x2098, 0x7001}, {0x209a, 0x0fca}, {0x209c, 0x00cb}, {0x209e, 0x009f}, {0x20a0, 0x7002}, {0x20a2, 0x13cc}, {0x20a4, 0x019b}, {0x20a6, 0x014d}, {0x20a8, 0x2987}, {0x20aa, 0x2766}, {0x20ac, 0x0020}, {0x20ae, 0x2060}, {0x20b0, 0x0e5d}, {0x20b2, 0x181d}, {0x20b4, 0x2066}, {0x20b6, 0x20c4}, {0x20b8, 0x50a0}, {0x20ba, 0x0005}, {0x20bc, 0x0000}, {0x20be, 0x01db}, {0x20c0, 0x025a}, {0x20c2, 0x00c0}, {0x20c4, 0x0005}, {0x20c6, 0x0006}, {0x20c8, 0x0ad9}, {0x20ca, 0x0259}, {0x20cc, 0x0618}, {0x20ce, 0x0258}, {0x20d0, 0x2266}, {0x20d2, 0x20c8}, {0x20d4, 0x2060}, {0x20d6, 0x707b}, {0x20d8, 0x0fdd}, {0x20da, 0x86b8}, {0x20dc, 0x50e0}, {0x20de, 0x0020}, {0x20e0, 0x5100}, {0x20e2, 0x3143}, {0x20e4, 0x5121}, {0x20e6, 0x7800}, {0x20e8, 0x3140}, {0x20ea, 0x01c4}, {0x20ec, 0x01c1}, {0x20ee, 0x01c0}, {0x20f0, 0x01c4}, {0x20f2, 0x2700}, {0x20f4, 0x3d40}, {0x20f6, 0x7800}, {0x20f8, 0xffff}, {0x27fe, 0xe000}, {0x3000, 0x60f8}, {0x3002, 0x187f}, {0x3004, 0x7060}, {0x3006, 0x0114}, {0x3008, 0x60b0}, {0x300a, 0x1473}, {0x300c, 0x0013}, {0x300e, 0x140f}, {0x3010, 0x0040}, {0x3012, 0x100f}, {0x3014, 0x60f8}, {0x3016, 0x187f}, {0x3018, 0x7060}, {0x301a, 0x0114}, {0x301c, 0x60b0}, {0x301e, 0x1473}, {0x3020, 0x0013}, {0x3022, 0x140f}, {0x3024, 0x0040}, {0x3026, 0x000f}, {0x0b00, 0x0000}, {0x0b02, 0x0045}, {0x0b04, 0xb405}, {0x0b06, 0xc403}, {0x0b08, 0x0081}, {0x0b0a, 0x8252}, {0x0b0c, 0xf814}, {0x0b0e, 0xc618}, {0x0b10, 0xa828}, {0x0b12, 0x004c}, {0x0b14, 0x4068}, {0x0b16, 0x0000}, {0x0f30, 0x6e25}, {0x0f32, 0x7067}, {0x0954, 0x0009}, {0x0956, 0x1100}, {0x0958, 0xcc80}, {0x095a, 0x0000}, {0x0c00, 0x1110}, {0x0c02, 0x0011}, {0x0c04, 0x0000}, {0x0c06, 0x0200}, {0x0c10, 0x0040}, {0x0c12, 0x0040}, {0x0c14, 0x0040}, {0x0c16, 0x0040}, {0x0a10, 0x4000}, {0x3068, 0xf800}, {0x306a, 0xf876}, {0x006c, 0x0000}, {0x005e, 0x0200}, {0x000e, 0x0100}, {0x0e0a, 0x0001}, {0x004a, 0x0100}, {0x004c, 0x0000}, {0x004e, 0x0100}, {0x000c, 0x0022}, {0x0008, 0x0b00}, {0x005a, 0x0202}, {0x0012, 0x000e}, {0x0018, 0x0a31}, {0x0022, 0x0008}, {0x0028, 0x0017}, {0x0024, 0x0028}, {0x002a, 0x002d}, {0x0026, 0x0030}, {0x002c, 0x07c7}, {0x002e, 0x1111}, {0x0030, 0x1111}, {0x0032, 0x1111}, {0x0006, 0x0823}, {0x0a22, 0x0000}, {0x0a12, 0x0a20}, {0x0a14, 0x0798}, {0x003e, 0x0000}, {0x0074, 0x0821}, {0x0070, 0x0411}, {0x0002, 0x0000}, {0x0a02, 0x0100}, {0x0a24, 0x0100}, {0x0076, 0x0000}, {0x0060, 0x0000}, {0x0062, 0x0530}, {0x0064, 0x0500}, {0x0066, 0x0530}, {0x0068, 0x0500}, {0x0122, 0x0300}, {0x015a, 0xff08}, {0x0804, 0x0200}, {0x005c, 0x0102}, {0x0a1a, 0x0800}, {0x003c, 0x0101}, //fix framerate {REG_NULL, 0x00}, }; /* * Xclk 24Mhz * Pclk 210Mhz * linelength 2816 * framelength 2083 * grabwindow_width 2592 * grabwindow_height 1944 * max_framerate 30fps * MIPI speed(Mbps): 880Mbps x 2lane */ static const struct regval hi556_2592x1944_regs_2lane[] = { {0x0a00, 0x0000}, {0x0b0a, 0x8252}, {0x0f30, 0x6e25}, {0x0f32, 0x7067}, {0x004a, 0x0100}, {0x004c, 0x0000}, {0x004e, 0x0000}, {0x000c, 0x0022}, {0x0008, 0x0b00}, {0x005a, 0x0202}, {0x0012, 0x000e}, {0x0018, 0x0a31}, {0x0022, 0x0008}, {0x0028, 0x0017}, {0x0024, 0x0028}, {0x002a, 0x002d}, {0x0026, 0x0030}, {0x002c, 0x07c7}, {0x002e, 0x1111}, {0x0030, 0x1111}, {0x0032, 0x1111}, {0x0006, 0x0823}, {0x0a22, 0x0000}, {0x0a12, 0x0a20}, {0x0a14, 0x0798}, {0x003e, 0x0000}, {0x0804, 0x0200}, {0x0a04, 0x014a}, {0x090c, 0x0fdc}, {0x090e, 0x002d}, {0x0902, 0x4319}, {0x0914, 0xc10a}, {0x0916, 0x071f}, {0x0918, 0x0408}, {0x091a, 0x0c0d}, {0x091c, 0x0f09}, {0x091e, 0x0a00}, //{0x0a00, 0x0100}, {REG_NULL, 0x00}, }; static const struct hi556_mode supported_modes_2lane[] = { { .width = 2592, .height = 1944, .max_fps = { .numerator = 10000, .denominator = 300000, }, .exp_def = 0x0810, .hts_def = 0x0B00, .vts_def = 0x0823, .reg_list = hi556_2592x1944_regs_2lane, .hdr_mode = NO_HDR, } }; static const struct hi556_mode *supported_modes; static const s64 link_freq_menu_items[] = { MIPI_FREQ }; static const char * const hi556_test_pattern_menu[] = { "Disabled", "Solid color bar", "100% color bars", "Fade to gray color bars", "PN9", "Horizental/Vertical gradient", "Check board", "Slant", "Resolution", }; /* Write registers up to 4 at a time */ static int hi556_write_reg(struct i2c_client *client, u16 reg, u32 len, u32 val) { u32 buf_i, val_i; u8 buf[6]; u8 *val_p; __be32 val_be; dev_dbg(&client->dev, "%s(%d) enter!\n", __func__, __LINE__); dev_dbg(&client->dev, "write reg(0x%x val:0x%x)!\n", reg, val); if (len > 4) return -EINVAL; buf[0] = reg >> 8; buf[1] = reg & 0xff; val_be = cpu_to_be32(val); val_p = (u8 *)&val_be; 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) { dev_err(&client->dev, "write reg(0x%x val:0x%x)failed !\n", reg, val); return -EIO; } return 0; } static int hi556_write_array(struct i2c_client *client, const struct regval *regs) { int i, delay_ms, ret = 0; for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++) { if (regs[i].addr == DELAY_MS) { delay_ms = regs[i].val; dev_info(&client->dev, "delay(%d) ms !\n", delay_ms); usleep_range(1000 * delay_ms, 1000 * delay_ms + 100); continue; } ret = hi556_write_reg(client, regs[i].addr, HI556_REG_VALUE_16BIT, regs[i].val); if (ret) dev_err(&client->dev, "%s failed !\n", __func__); } return ret; } /* Read registers up to 4 at a time */ static int hi556_read_reg(struct i2c_client *client, u16 reg, unsigned int len, u32 *val) { struct i2c_msg msgs[2]; u8 *data_be_p; __be32 data_be = 0; __be16 reg_addr_be = cpu_to_be16(reg); int ret; if (len > 4 || !len) 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; } /* Check Register value */ #ifdef CHECK_REG_VALUE static int hi556_reg_verify(struct i2c_client *client, const struct regval *regs) { u32 i; int ret = 0; u32 value; for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++) { ret = hi556_read_reg(client, regs[i].addr, HI556_REG_VALUE_16BIT, &value); if (value != regs[i].val) { dev_info(&client->dev, "%s: 0x%04x is 0x%x instead of 0x%x\n", __func__, regs[i].addr, value, regs[i].val); } } return ret; } #endif static int hi556_get_reso_dist(const struct hi556_mode *mode, struct v4l2_mbus_framefmt *framefmt) { return abs(mode->width - framefmt->width) + abs(mode->height - framefmt->height); } static const struct hi556_mode * hi556_find_best_fit(struct hi556 *hi556, struct v4l2_subdev_format *fmt) { struct v4l2_mbus_framefmt *framefmt = &fmt->format; int dist; int cur_best_fit = 0; int cur_best_fit_dist = -1; unsigned int i; for (i = 0; i < hi556->cfg_num; i++) { dist = hi556_get_reso_dist(&supported_modes[i], framefmt); if (cur_best_fit_dist == -1 || dist < cur_best_fit_dist) { cur_best_fit_dist = dist; cur_best_fit = i; } } return &supported_modes[cur_best_fit]; } static int hi556_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct hi556 *hi556 = to_hi556(sd); const struct hi556_mode *mode; s64 h_blank, vblank_def; mutex_lock(&hi556->mutex); mode = hi556_find_best_fit(hi556, fmt); fmt->format.code = HI556_MEDIA_BUS_FMT; fmt->format.width = mode->width; fmt->format.height = mode->height; fmt->format.field = V4L2_FIELD_NONE; if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API *v4l2_subdev_get_try_format(sd, sd_state, fmt->pad) = fmt->format; #else mutex_unlock(&hi556->mutex); return -ENOTTY; #endif } else { hi556->cur_mode = mode; h_blank = mode->hts_def - mode->width; __v4l2_ctrl_modify_range(hi556->hblank, h_blank, h_blank, 1, h_blank); vblank_def = mode->vts_def - mode->height; __v4l2_ctrl_modify_range(hi556->vblank, vblank_def, HI556_VTS_MAX - mode->height, 1, vblank_def); } mutex_unlock(&hi556->mutex); return 0; } static int hi556_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct hi556 *hi556 = to_hi556(sd); const struct hi556_mode *mode = hi556->cur_mode; mutex_lock(&hi556->mutex); if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API fmt->format = *v4l2_subdev_get_try_format(sd, sd_state, fmt->pad); #else mutex_unlock(&hi556->mutex); return -ENOTTY; #endif } else { fmt->format.width = mode->width; fmt->format.height = mode->height; fmt->format.code = HI556_MEDIA_BUS_FMT; fmt->format.field = V4L2_FIELD_NONE; } mutex_unlock(&hi556->mutex); return 0; } static int hi556_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 = HI556_MEDIA_BUS_FMT; return 0; } static int hi556_enum_frame_sizes(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { struct hi556 *hi556 = to_hi556(sd); if (fse->index >= hi556->cfg_num) return -EINVAL; if (fse->code != HI556_MEDIA_BUS_FMT) return -EINVAL; fse->min_width = supported_modes[fse->index].width; fse->max_width = supported_modes[fse->index].width; fse->max_height = supported_modes[fse->index].height; fse->min_height = supported_modes[fse->index].height; return 0; } static int hi556_enable_test_pattern(struct hi556 *hi556, u32 pattern) { if (pattern) { hi556_write_reg(hi556->client, HI556_REG_TEST_PATTERN, HI556_REG_VALUE_08BIT, HI556_TEST_PATTERN_ENABLE); hi556_write_reg(hi556->client, HI556_REG_TEST_PATTERN_SELECT, HI556_REG_VALUE_08BIT, 0x01 << (pattern - 1)); } else { hi556_write_reg(hi556->client, HI556_REG_TEST_PATTERN, HI556_REG_VALUE_08BIT, HI556_TEST_PATTERN_DISABLE); } return 0; } static int hi556_g_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_frame_interval *fi) { struct hi556 *hi556 = to_hi556(sd); const struct hi556_mode *mode = hi556->cur_mode; fi->interval = mode->max_fps; return 0; } static int hi556_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad_id, struct v4l2_mbus_config *config) { config->type = V4L2_MBUS_CSI2_DPHY; config->bus.mipi_csi2.num_data_lanes = HI556_LANES; return 0; } static void hi556_get_module_inf(struct hi556 *hi556, struct rkmodule_inf *inf) { memset(inf, 0, sizeof(*inf)); strscpy(inf->base.sensor, HI556_NAME, sizeof(inf->base.sensor)); strscpy(inf->base.module, hi556->module_name, sizeof(inf->base.module)); strscpy(inf->base.lens, hi556->len_name, sizeof(inf->base.lens)); } static void hi556_set_awb_cfg(struct hi556 *hi556, struct rkmodule_awb_cfg *cfg) { mutex_lock(&hi556->mutex); memcpy(&hi556->awb_cfg, cfg, sizeof(*cfg)); mutex_unlock(&hi556->mutex); } static long hi556_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) { struct hi556 *hi556 = to_hi556(sd); long ret = 0; u32 stream = 0; switch (cmd) { case RKMODULE_GET_MODULE_INFO: hi556_get_module_inf(hi556, (struct rkmodule_inf *)arg); break; case RKMODULE_AWB_CFG: hi556_set_awb_cfg(hi556, (struct rkmodule_awb_cfg *)arg); break; case RKMODULE_SET_QUICK_STREAM: stream = *((u32 *)arg); if (stream) ret = hi556_write_reg(hi556->client, HI556_REG_CTRL_MODE, HI556_REG_VALUE_08BIT, HI556_MODE_STREAMING); else ret = hi556_write_reg(hi556->client, HI556_REG_CTRL_MODE, HI556_REG_VALUE_08BIT, HI556_MODE_SW_STANDBY); break; default: ret = -ENOIOCTLCMD; break; } return ret; } #ifdef CONFIG_COMPAT static long hi556_compat_ioctl32(struct v4l2_subdev *sd, unsigned int cmd, unsigned long arg) { void __user *up = compat_ptr(arg); struct rkmodule_inf *inf; struct rkmodule_awb_cfg *awb_cfg; long ret; u32 stream = 0; switch (cmd) { case RKMODULE_GET_MODULE_INFO: inf = kzalloc(sizeof(*inf), GFP_KERNEL); if (!inf) { ret = -ENOMEM; return ret; } ret = hi556_ioctl(sd, cmd, inf); if (!ret) { ret = copy_to_user(up, inf, sizeof(*inf)); if (ret) ret = -EFAULT; } kfree(inf); break; case RKMODULE_AWB_CFG: awb_cfg = kzalloc(sizeof(*awb_cfg), GFP_KERNEL); if (!awb_cfg) { ret = -ENOMEM; return ret; } if (copy_from_user(awb_cfg, up, sizeof(*awb_cfg))) { kfree(awb_cfg); return -EFAULT; } ret = hi556_ioctl(sd, cmd, awb_cfg); kfree(awb_cfg); break; case RKMODULE_SET_QUICK_STREAM: if (copy_from_user(&stream, up, sizeof(u32))) return -EFAULT; ret = hi556_ioctl(sd, cmd, &stream); break; default: ret = -ENOIOCTLCMD; break; } return ret; } #endif static int __hi556_start_stream(struct hi556 *hi556) { int ret; ret = hi556_write_array(hi556->client, hi556->cur_mode->reg_list); if (ret) return ret; #ifdef CHECK_REG_VALUE usleep_range(10000, 20000); /* verify default values to make sure everything has */ /* been written correctly as expected */ dev_info(&hi556->client->dev, "%s:Check register value!\n", __func__); ret = hi556_reg_verify(hi556->client, hi556_global_regs); if (ret) return ret; ret = hi556_reg_verify(hi556->client, hi556->cur_mode->reg_list); if (ret) return ret; #endif /* In case these controls are set before streaming */ mutex_unlock(&hi556->mutex); ret = v4l2_ctrl_handler_setup(&hi556->ctrl_handler); mutex_lock(&hi556->mutex); if (ret) return ret; if (ret) dev_info(&hi556->client->dev, "APPly otp failed!\n"); ret = hi556_write_reg(hi556->client, HI556_REG_CTRL_MODE, HI556_REG_VALUE_08BIT, HI556_MODE_STREAMING); return ret; } static int __hi556_stop_stream(struct hi556 *hi556) { return hi556_write_reg(hi556->client, HI556_REG_CTRL_MODE, HI556_REG_VALUE_08BIT, HI556_MODE_SW_STANDBY); } static int hi556_s_stream(struct v4l2_subdev *sd, int on) { struct hi556 *hi556 = to_hi556(sd); struct i2c_client *client = hi556->client; int ret = 0; dev_info(&client->dev, "%s: on: %d, %dx%d@%d\n", __func__, on, hi556->cur_mode->width, hi556->cur_mode->height, DIV_ROUND_CLOSEST(hi556->cur_mode->max_fps.denominator, hi556->cur_mode->max_fps.numerator)); mutex_lock(&hi556->mutex); on = !!on; if (on == hi556->streaming) goto unlock_and_return; if (on) { dev_info(&client->dev, "stream on!!!\n"); ret = pm_runtime_get_sync(&client->dev); if (ret < 0) { pm_runtime_put_noidle(&client->dev); goto unlock_and_return; } ret = __hi556_start_stream(hi556); if (ret) { v4l2_err(sd, "start stream failed while write regs\n"); pm_runtime_put(&client->dev); goto unlock_and_return; } } else { dev_info(&client->dev, "stream off!!!\n"); __hi556_stop_stream(hi556); pm_runtime_put(&client->dev); } hi556->streaming = on; unlock_and_return: mutex_unlock(&hi556->mutex); return ret; } static int hi556_s_power(struct v4l2_subdev *sd, int on) { struct hi556 *hi556 = to_hi556(sd); struct i2c_client *client = hi556->client; int ret = 0; dev_info(&client->dev, "%s(%d) on(%d)\n", __func__, __LINE__, on); mutex_lock(&hi556->mutex); /* If the power state is not modified - no work to do. */ if (hi556->power_on == !!on) goto unlock_and_return; if (on) { ret = pm_runtime_get_sync(&client->dev); if (ret < 0) { pm_runtime_put_noidle(&client->dev); goto unlock_and_return; } ret = hi556_write_array(hi556->client, hi556_global_regs); if (ret) { v4l2_err(sd, "could not set init registers\n"); pm_runtime_put_noidle(&client->dev); goto unlock_and_return; } hi556->power_on = true; } else { pm_runtime_put(&client->dev); hi556->power_on = false; } unlock_and_return: mutex_unlock(&hi556->mutex); return ret; } /* Calculate the delay in us by clock rate and clock cycles */ static inline u32 hi556_cal_delay(u32 cycles) { return DIV_ROUND_UP(cycles, HI556_XVCLK_FREQ / 1000 / 1000); } static int __hi556_power_on(struct hi556 *hi556) { int ret; u32 delay_us; struct device *dev = &hi556->client->dev; if (!IS_ERR(hi556->power_gpio)) gpiod_set_value_cansleep(hi556->power_gpio, 1); usleep_range(1000, 2000); if (!IS_ERR_OR_NULL(hi556->pins_default)) { ret = pinctrl_select_state(hi556->pinctrl, hi556->pins_default); if (ret < 0) dev_err(dev, "could not set pins\n"); } ret = clk_set_rate(hi556->xvclk, HI556_XVCLK_FREQ); if (ret < 0) dev_warn(dev, "Failed to set xvclk rate (24MHz)\n"); if (clk_get_rate(hi556->xvclk) != HI556_XVCLK_FREQ) dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n"); ret = clk_prepare_enable(hi556->xvclk); if (ret < 0) { dev_err(dev, "Failed to enable xvclk\n"); return ret; } ret = regulator_bulk_enable(HI556_NUM_SUPPLIES, hi556->supplies); if (ret < 0) { dev_err(dev, "Failed to enable regulators\n"); goto disable_clk; } if (!IS_ERR(hi556->reset_gpio)) gpiod_set_value_cansleep(hi556->reset_gpio, 1); if (!IS_ERR(hi556->pwdn_gpio)) gpiod_set_value_cansleep(hi556->pwdn_gpio, 1); /* 8192 cycles prior to first SCCB transaction */ delay_us = hi556_cal_delay(8192); usleep_range(delay_us, delay_us * 2); usleep_range(10000, 20000); return 0; disable_clk: clk_disable_unprepare(hi556->xvclk); return ret; } static void __hi556_power_off(struct hi556 *hi556) { int ret; struct device *dev = &hi556->client->dev; if (!IS_ERR(hi556->pwdn_gpio)) gpiod_set_value_cansleep(hi556->pwdn_gpio, 0); clk_disable_unprepare(hi556->xvclk); if (!IS_ERR(hi556->reset_gpio)) gpiod_set_value_cansleep(hi556->reset_gpio, 0); if (!IS_ERR_OR_NULL(hi556->pins_sleep)) { ret = pinctrl_select_state(hi556->pinctrl, hi556->pins_sleep); if (ret < 0) dev_dbg(dev, "could not set pins\n"); } if (!IS_ERR(hi556->power_gpio)) gpiod_set_value_cansleep(hi556->power_gpio, 0); regulator_bulk_disable(HI556_NUM_SUPPLIES, hi556->supplies); } static int hi556_runtime_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); struct hi556 *hi556 = to_hi556(sd); return __hi556_power_on(hi556); } static int hi556_runtime_suspend(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); struct hi556 *hi556 = to_hi556(sd); __hi556_power_off(hi556); return 0; } #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static int hi556_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { struct hi556 *hi556 = to_hi556(sd); struct v4l2_mbus_framefmt *try_fmt = v4l2_subdev_get_try_format(sd, fh->state, 0); const struct hi556_mode *def_mode = &supported_modes[0]; mutex_lock(&hi556->mutex); /* Initialize try_fmt */ try_fmt->width = def_mode->width; try_fmt->height = def_mode->height; try_fmt->code = HI556_MEDIA_BUS_FMT; try_fmt->field = V4L2_FIELD_NONE; mutex_unlock(&hi556->mutex); /* No crop or compose */ return 0; } #endif static int hi556_enum_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval_enum *fie) { struct hi556 *hi556 = to_hi556(sd); if (fie->index >= hi556->cfg_num) return -EINVAL; if (fie->code != HI556_MEDIA_BUS_FMT) return -EINVAL; fie->width = supported_modes[fie->index].width; fie->height = supported_modes[fie->index].height; fie->interval = supported_modes[fie->index].max_fps; fie->reserved[0] = supported_modes[fie->index].hdr_mode; return 0; } static const struct dev_pm_ops hi556_pm_ops = { SET_RUNTIME_PM_OPS(hi556_runtime_suspend, hi556_runtime_resume, NULL) }; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static const struct v4l2_subdev_internal_ops hi556_internal_ops = { .open = hi556_open, }; #endif static const struct v4l2_subdev_core_ops hi556_core_ops = { .s_power = hi556_s_power, .ioctl = hi556_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl32 = hi556_compat_ioctl32, #endif }; static const struct v4l2_subdev_video_ops hi556_video_ops = { .s_stream = hi556_s_stream, .g_frame_interval = hi556_g_frame_interval, }; static const struct v4l2_subdev_pad_ops hi556_pad_ops = { .enum_mbus_code = hi556_enum_mbus_code, .enum_frame_size = hi556_enum_frame_sizes, .enum_frame_interval = hi556_enum_frame_interval, .get_fmt = hi556_get_fmt, .set_fmt = hi556_set_fmt, .get_mbus_config = hi556_g_mbus_config, }; static const struct v4l2_subdev_ops hi556_subdev_ops = { .core = &hi556_core_ops, .video = &hi556_video_ops, .pad = &hi556_pad_ops, }; static int hi556_set_exposure_reg(struct hi556 *hi556, u32 exposure) { int ret = 0; u32 cal_shutter = 0; cal_shutter = exposure >> 1; cal_shutter = cal_shutter << 1; ret = hi556_write_reg(hi556->client, HI556_REG_GROUP, HI556_REG_VALUE_08BIT, 0x01); ret |= hi556_write_reg(hi556->client, HI556_REG_EXPOSURE_H, HI556_REG_VALUE_08BIT, HI556_FETCH_HIGH_BYTE_EXP(cal_shutter)); ret |= hi556_write_reg(hi556->client, HI556_REG_EXPOSURE_M, HI556_REG_VALUE_08BIT, HI556_FETCH_MIDDLE_BYTE_EXP(cal_shutter)); ret |= hi556_write_reg(hi556->client, HI556_REG_EXPOSURE_L, HI556_REG_VALUE_08BIT, HI556_FETCH_LOW_BYTE_EXP(cal_shutter)); ret |= hi556_write_reg(hi556->client, HI556_REG_GROUP, HI556_REG_VALUE_08BIT, 0x00); return ret; } static int hi556_set_gain_reg(struct hi556 *hi556, u32 a_gain) { int ret = 0; ret = hi556_write_reg(hi556->client, HI556_REG_GROUP, HI556_REG_VALUE_08BIT, 0x01); ret |= hi556_write_reg(hi556->client, HI556_REG_GAIN, HI556_REG_VALUE_08BIT, a_gain); ret |= hi556_write_reg(hi556->client, HI556_REG_GROUP, HI556_REG_VALUE_08BIT, 0x00); return ret; } static int hi556_set_ctrl(struct v4l2_ctrl *ctrl) { struct hi556 *hi556 = container_of(ctrl->handler, struct hi556, ctrl_handler); struct i2c_client *client = hi556->client; s64 max; u32 val = 0; int ret = 0; /* Propagate change of current control to all related controls */ switch (ctrl->id) { case V4L2_CID_VBLANK: /* Update max exposure while meeting expected vblanking */ max = hi556->cur_mode->height + ctrl->val - 4; __v4l2_ctrl_modify_range(hi556->exposure, hi556->exposure->minimum, max, hi556->exposure->step, hi556->exposure->default_value); break; } if (!pm_runtime_get_if_in_use(&client->dev)) return 0; switch (ctrl->id) { case V4L2_CID_EXPOSURE: dev_dbg(&client->dev, "set exposure value 0x%x\n", ctrl->val); /* 4 least significant bits of expsoure are fractional part */ ret = hi556_set_exposure_reg(hi556, ctrl->val); break; case V4L2_CID_ANALOGUE_GAIN: dev_dbg(&client->dev, "set analog gain value 0x%x\n", ctrl->val); ret = hi556_set_gain_reg(hi556, ctrl->val); break; case V4L2_CID_VBLANK: dev_dbg(&client->dev, "set vb value 0x%x\n", ctrl->val); ret = hi556_write_reg(hi556->client, HI556_REG_VTS, HI556_REG_VALUE_16BIT, ctrl->val + hi556->cur_mode->height); break; case V4L2_CID_TEST_PATTERN: ret = hi556_enable_test_pattern(hi556, ctrl->val); break; case V4L2_CID_HFLIP: ret = hi556_read_reg(hi556->client, HI556_FLIP_MIRROR_REG, HI556_REG_VALUE_08BIT, &val); ret |= hi556_write_reg(hi556->client, HI556_FLIP_MIRROR_REG, HI556_REG_VALUE_08BIT, HI556_FETCH_MIRROR(val, ctrl->val)); break; case V4L2_CID_VFLIP: ret = hi556_read_reg(hi556->client, HI556_FLIP_MIRROR_REG, HI556_REG_VALUE_08BIT, &val); ret |= hi556_write_reg(hi556->client, HI556_FLIP_MIRROR_REG, HI556_REG_VALUE_08BIT, HI556_FETCH_FLIP(val, ctrl->val)); break; default: dev_warn(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n", __func__, ctrl->id, ctrl->val); break; } pm_runtime_put(&client->dev); return ret; } static const struct v4l2_ctrl_ops hi556_ctrl_ops = { .s_ctrl = hi556_set_ctrl, }; static int hi556_initialize_controls(struct hi556 *hi556) { const struct hi556_mode *mode; struct v4l2_ctrl_handler *handler; struct v4l2_ctrl *ctrl; s64 exposure_max, vblank_def; u32 h_blank; int ret; handler = &hi556->ctrl_handler; mode = hi556->cur_mode; ret = v4l2_ctrl_handler_init(handler, 9); if (ret) return ret; handler->lock = &hi556->mutex; ctrl = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ, 0, 0, link_freq_menu_items); if (ctrl) ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE, 0, hi556->pixel_rate, 1, hi556->pixel_rate); h_blank = mode->hts_def - mode->width; hi556->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK, h_blank, h_blank, 1, h_blank); if (hi556->hblank) hi556->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; vblank_def = mode->vts_def - mode->height; hi556->vblank = v4l2_ctrl_new_std(handler, &hi556_ctrl_ops, V4L2_CID_VBLANK, vblank_def, HI556_VTS_MAX - mode->height, 1, vblank_def); exposure_max = mode->vts_def - 4; hi556->exposure = v4l2_ctrl_new_std(handler, &hi556_ctrl_ops, V4L2_CID_EXPOSURE, HI556_EXPOSURE_MIN, exposure_max, HI556_EXPOSURE_STEP, mode->exp_def); hi556->anal_gain = v4l2_ctrl_new_std(handler, &hi556_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, ANALOG_GAIN_MIN, ANALOG_GAIN_MAX, ANALOG_GAIN_STEP, ANALOG_GAIN_DEFAULT); hi556->test_pattern = v4l2_ctrl_new_std_menu_items(handler, &hi556_ctrl_ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(hi556_test_pattern_menu) - 1, 0, 0, hi556_test_pattern_menu); v4l2_ctrl_new_std(handler, &hi556_ctrl_ops, V4L2_CID_HFLIP, 0, 1, 1, 0); v4l2_ctrl_new_std(handler, &hi556_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); if (handler->error) { ret = handler->error; dev_err(&hi556->client->dev, "Failed to init controls(%d)\n", ret); goto err_free_handler; } hi556->subdev.ctrl_handler = handler; return 0; err_free_handler: v4l2_ctrl_handler_free(handler); return ret; } static int hi556_check_sensor_id(struct hi556 *hi556, struct i2c_client *client) { struct device *dev = &hi556->client->dev; u32 id = 0; int ret; ret = hi556_read_reg(client, HI556_REG_CHIP_ID, HI556_REG_VALUE_16BIT, &id); if (id != CHIP_ID) { dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret); return -ENODEV; } dev_info(dev, "Detected Hi%04x sensor\n", CHIP_ID); return 0; } static int hi556_configure_regulators(struct hi556 *hi556) { unsigned int i; for (i = 0; i < HI556_NUM_SUPPLIES; i++) hi556->supplies[i].supply = hi556_supply_names[i]; return devm_regulator_bulk_get(&hi556->client->dev, HI556_NUM_SUPPLIES, hi556->supplies); } static int hi556_parse_of(struct hi556 *hi556) { struct device *dev = &hi556->client->dev; struct device_node *endpoint; struct fwnode_handle *fwnode; int rval; endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); if (!endpoint) { dev_err(dev, "Failed to get endpoint\n"); return -EINVAL; } fwnode = of_fwnode_handle(endpoint); rval = fwnode_property_read_u32_array(fwnode, "data-lanes", NULL, 0); if (rval <= 0) { dev_warn(dev, " Get mipi lane num failed!\n"); return -1; } hi556->lane_num = rval; if (hi556->lane_num == 2) { hi556->cur_mode = &supported_modes_2lane[0]; supported_modes = supported_modes_2lane; hi556->cfg_num = ARRAY_SIZE(supported_modes_2lane); /* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */ hi556->pixel_rate = MIPI_FREQ * 2U * hi556->lane_num / 8U; dev_info(dev, "lane_num(%d) pixel_rate(%u)\n", hi556->lane_num, hi556->pixel_rate); } else { dev_err(dev, "unsupported lane_num(%d)\n", hi556->lane_num); return -1; } return 0; } static int hi556_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; struct device_node *node = dev->of_node; struct hi556 *hi556; struct v4l2_subdev *sd; char facing[2] = "b"; int ret; dev_info(dev, "driver version: %02x.%02x.%02x", DRIVER_VERSION >> 16, (DRIVER_VERSION & 0xff00) >> 8, DRIVER_VERSION & 0x00ff); hi556 = devm_kzalloc(dev, sizeof(*hi556), GFP_KERNEL); if (!hi556) return -ENOMEM; ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX, &hi556->module_index); if (ret) { dev_warn(dev, "could not get module index!\n"); hi556->module_index = 0; } ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING, &hi556->module_facing); ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME, &hi556->module_name); ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME, &hi556->len_name); if (ret) { dev_err(dev, "could not get module information!\n"); return -EINVAL; } hi556->client = client; hi556->xvclk = devm_clk_get(dev, "xvclk"); if (IS_ERR(hi556->xvclk)) { dev_err(dev, "Failed to get xvclk\n"); return -EINVAL; } hi556->power_gpio = devm_gpiod_get(dev, "power", GPIOD_OUT_LOW); if (IS_ERR(hi556->power_gpio)) dev_warn(dev, "Failed to get power-gpios, maybe no use\n"); hi556->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(hi556->reset_gpio)) dev_warn(dev, "Failed to get reset-gpios, maybe no use\n"); hi556->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW); if (IS_ERR(hi556->pwdn_gpio)) dev_warn(dev, "Failed to get pwdn-gpios\n"); ret = hi556_configure_regulators(hi556); if (ret) { dev_err(dev, "Failed to get power regulators\n"); return ret; } ret = hi556_parse_of(hi556); if (ret != 0) return -EINVAL; hi556->pinctrl = devm_pinctrl_get(dev); if (!IS_ERR(hi556->pinctrl)) { hi556->pins_default = pinctrl_lookup_state(hi556->pinctrl, OF_CAMERA_PINCTRL_STATE_DEFAULT); if (IS_ERR(hi556->pins_default)) dev_err(dev, "could not get default pinstate\n"); hi556->pins_sleep = pinctrl_lookup_state(hi556->pinctrl, OF_CAMERA_PINCTRL_STATE_SLEEP); if (IS_ERR(hi556->pins_sleep)) dev_err(dev, "could not get sleep pinstate\n"); } mutex_init(&hi556->mutex); sd = &hi556->subdev; v4l2_i2c_subdev_init(sd, client, &hi556_subdev_ops); ret = hi556_initialize_controls(hi556); if (ret) goto err_destroy_mutex; ret = __hi556_power_on(hi556); if (ret) goto err_free_handler; ret = hi556_check_sensor_id(hi556, client); if (ret < 0) { dev_info(&client->dev, "%s(%d) Check id failed\n" "check following information:\n" "Power/PowerDown/Reset/Mclk/I2cBus !!\n", __func__, __LINE__); goto err_power_off; } #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API sd->internal_ops = &hi556_internal_ops; sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; #endif #if defined(CONFIG_MEDIA_CONTROLLER) hi556->pad.flags = MEDIA_PAD_FL_SOURCE; sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; ret = media_entity_pads_init(&sd->entity, 1, &hi556->pad); if (ret < 0) goto err_power_off; #endif memset(facing, 0, sizeof(facing)); if (strcmp(hi556->module_facing, "back") == 0) facing[0] = 'b'; else facing[0] = 'f'; snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s", hi556->module_index, facing, HI556_NAME, dev_name(sd->dev)); ret = v4l2_async_register_subdev_sensor(sd); if (ret) { dev_err(dev, "v4l2 async register subdev failed\n"); goto err_clean_entity; } pm_runtime_set_active(dev); pm_runtime_enable(dev); pm_runtime_idle(dev); return 0; err_clean_entity: #if defined(CONFIG_MEDIA_CONTROLLER) media_entity_cleanup(&sd->entity); #endif err_power_off: __hi556_power_off(hi556); err_free_handler: v4l2_ctrl_handler_free(&hi556->ctrl_handler); err_destroy_mutex: mutex_destroy(&hi556->mutex); return ret; } static void hi556_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct hi556 *hi556 = to_hi556(sd); v4l2_async_unregister_subdev(sd); #if defined(CONFIG_MEDIA_CONTROLLER) media_entity_cleanup(&sd->entity); #endif v4l2_ctrl_handler_free(&hi556->ctrl_handler); mutex_destroy(&hi556->mutex); pm_runtime_disable(&client->dev); if (!pm_runtime_status_suspended(&client->dev)) __hi556_power_off(hi556); pm_runtime_set_suspended(&client->dev); } #if IS_ENABLED(CONFIG_OF) static const struct of_device_id hi556_of_match[] = { { .compatible = "hynix,hi556" }, {}, }; MODULE_DEVICE_TABLE(of, hi556_of_match); #endif static const struct i2c_device_id hi556_match_id[] = { { "hynix,hi556", 0 }, { }, }; static struct i2c_driver hi556_i2c_driver = { .driver = { .name = HI556_NAME, .pm = &hi556_pm_ops, .of_match_table = of_match_ptr(hi556_of_match), }, .probe = &hi556_probe, .remove = &hi556_remove, .id_table = hi556_match_id, }; static int __init sensor_mod_init(void) { return i2c_add_driver(&hi556_i2c_driver); } static void __exit sensor_mod_exit(void) { i2c_del_driver(&hi556_i2c_driver); } device_initcall_sync(sensor_mod_init); module_exit(sensor_mod_exit); MODULE_DESCRIPTION("Hynix hi556 sensor driver"); MODULE_LICENSE("GPL v2");