diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig index d3eb9e53e1db..81242c9f6206 100644 --- a/drivers/media/i2c/Kconfig +++ b/drivers/media/i2c/Kconfig @@ -1799,6 +1799,18 @@ config VIDEO_SP250A To compile this driver as a module, choose M here: the module will be called SP250A. +config VIDEO_HYNIX_HI556 + tristate "Hynix HI556 sensor support" + depends on VIDEO_V4L2 && I2C && MEDIA_CONTROLLER + depends on MEDIA_CAMERA_SUPPORT + select V4L2_FWNODE + help + This is a Video4Linux2 sensor driver for the Hynix + HI556 camera. + + To compile this driver as a module, choose M here: the + module will be called hynix_hi556. + comment "Flash devices" config VIDEO_ADP1653 diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile index 38b3e103ceca..82cd96f93432 100644 --- a/drivers/media/i2c/Makefile +++ b/drivers/media/i2c/Makefile @@ -193,6 +193,7 @@ obj-$(CONFIG_VIDEO_SC4238) += sc4238.o obj-$(CONFIG_VIDEO_SC430CS) += sc430cs.o obj-$(CONFIG_VIDEO_SC500AI) += sc500ai.o obj-$(CONFIG_VIDEO_SP250A) += sp250a.o +obj-$(CONFIG_VIDEO_HYNIX_HI556) += hynix_hi556.o obj-$(CONFIG_VIDEO_PREISP_DUMMY_SENSOR) += preisp-dummy.o diff --git a/drivers/media/i2c/hynix_hi556.c b/drivers/media/i2c/hynix_hi556.c new file mode 100644 index 000000000000..97f5ab3ab259 --- /dev/null +++ b/drivers/media/i2c/hynix_hi556.c @@ -0,0 +1,1615 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * hi556 driver + * + * Copyright (C) 2021 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 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_pad_config *cfg, + 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, cfg, 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_pad_config *cfg, + 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, cfg, 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_pad_config *cfg, + 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_pad_config *cfg, + 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; + + mutex_lock(&hi556->mutex); + fi->interval = mode->max_fps; + mutex_unlock(&hi556->mutex); + + 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->pad, 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_pad_config *cfg, + 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, +}; + +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; + 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; + 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, 8); + 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); + + 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 (2 == hi556->lane_num) { + 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_common(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 int 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); + + return 0; +} + +#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("OmniVision hi556 sensor driver"); +MODULE_LICENSE("GPL v2");