// SPDX-License-Identifier: GPL-2.0 /* * s5k3l8xx camera driver * * Copyright (C) 2023 Rockchip Electronics Co., Ltd. * * V0.0X01.0X00 first version. * V0.0X01.0X01 update sensor driver. * 1. adjust power sequence to suit spec. * 2. add read/write reg error debug log. * */ // #define DEBUG #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #define DRIVER_VERSION KERNEL_VERSION(0, 0x01, 0x01) #define S5K3L8XX_MAJOR_I2C_ADDR 0x10 #define S5K3L8XX_MINOR_I2C_ADDR 0x2D #ifndef V4L2_CID_DIGITAL_GAIN #define V4L2_CID_DIGITAL_GAIN V4L2_CID_GAIN #endif #define S5K3L8XX_LINK_FREQ_562MHZ 562000000U /* pixel rate = link frequency * 2 * lanes / BITS_PER_SAMPLE */ #define S5K3L8XX_PIXEL_RATE (S5K3L8XX_LINK_FREQ_562MHZ * 2LL * 4LL / 10LL) #define S5K3L8XX_XVCLK_FREQ 24000000 #define CHIP_ID 0x30c8 #define S5K3L8XX_REG_CHIP_ID 0x0000 #define S5K3L8XX_REG_CTRL_MODE 0x0100 #define S5K3L8XX_MODE_SW_STANDBY 0x0 #define S5K3L8XX_MODE_STREAMING BIT(0) #define S5K3L8XX_REG_STREAM_ON 0x3C1E #define S5K3L8XX_REG_EXPOSURE 0x0202 #define S5K3L8XX_EXPOSURE_MIN 4 #define S5K3L8XX_EXPOSURE_STEP 1 #define S5K3L8XX_VTS_MAX 0xfff7 #define S5K3L8XX_REG_ANALOG_GAIN 0x0204 #define S5K3L8XX_GAIN_MIN 0x40 #define S5K3L8XX_GAIN_MAX 0x200 #define S5K3L8XX_GAIN_STEP 1 #define S5K3L8XX_GAIN_DEFAULT 0x100 #define S5K3L8XX_REG_TEST_PATTERN 0x0601 #define S5K3L8XX_TEST_PATTERN_ENABLE 0x80 #define S5K3L8XX_TEST_PATTERN_DISABLE 0x0 #define S5K3L8XX_REG_VTS 0x0340 #define REG_NULL 0xFFFF #define S5K3L8XX_REG_VALUE_08BIT 1 #define S5K3L8XX_REG_VALUE_16BIT 2 #define S5K3L8XX_REG_VALUE_24BIT 3 #define S5K3L8XX_LANES 4 #define S5K3L8XX_BITS_PER_SAMPLE 10 #define S5K3L8XX_CHIP_REVISION_REG 0x0004 #define OF_CAMERA_PINCTRL_STATE_DEFAULT "rockchip,camera_default" #define OF_CAMERA_PINCTRL_STATE_SLEEP "rockchip,camera_sleep" #define S5K3L8XX_NAME "s5k3l8xx" // #define S5K3L8XX_MIRROR // #define S5K3L8XX_FLIP #define S5K3L8XX_FLIP_MIRROR #ifdef S5K3L8XX_MIRROR #define S5K3L8XX_MEDIA_BUS_FMT MEDIA_BUS_FMT_SRGGB10_1X10 #elif defined S5K3L8XX_FLIP #define S5K3L8XX_MEDIA_BUS_FMT MEDIA_BUS_FMT_SBGGR10_1X10 #elif defined S5K3L8XX_FLIP_MIRROR #define S5K3L8XX_MEDIA_BUS_FMT MEDIA_BUS_FMT_SGBRG10_1X10 #else #define S5K3L8XX_MEDIA_BUS_FMT MEDIA_BUS_FMT_SGRBG10_1X10 #endif static const char * const s5k3l8xx_supply_names[] = { "avdd", /* Analog power */ "dovdd", /* Digital I/O power */ "dvdd", /* Digital core power */ }; #define S5K3L8XX_NUM_SUPPLIES ARRAY_SIZE(s5k3l8xx_supply_names) struct regval { u16 addr; u16 val; }; struct s5k3l8xx_mode { u32 width; u32 height; struct v4l2_fract max_fps; u32 hts_def; u32 vts_def; u32 exp_def; u32 link_freq_idx; u32 bpp; const struct regval *reg_list; }; struct s5k3l8xx { 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[S5K3L8XX_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 *pixel_rate; struct v4l2_ctrl *link_freq; struct v4l2_ctrl *test_pattern; struct mutex mutex; bool streaming; bool power_on; const struct s5k3l8xx_mode *cur_mode; u32 module_index; const char *module_facing; const char *module_name; const char *len_name; }; #define to_s5k3l8xx(sd) container_of(sd, struct s5k3l8xx, subdev) static const struct regval s5k3l8xx_4208x3120_30fps_regs[] = { #ifdef S5K3L8XX_MIRROR {0x0100, 0x0001}, #elif defined S5K3L8XX_FLIP {0x0100, 0x0002}, #elif defined S5K3L8XX_FLIP_MIRROR {0x0100, 0x0003}, #else {0x0100, 0x0000}, #endif {0x6028, 0x4000}, {0x6214, 0xFFFF}, {0x6216, 0xFFFF}, {0x6218, 0x0000}, {0x621A, 0x0000}, {0x6028, 0x2000}, {0x602A, 0x2450}, {0x6F12, 0x0448}, {0x6F12, 0x0349}, {0x6F12, 0x0160}, {0x6F12, 0xC26A}, {0x6F12, 0x511A}, {0x6F12, 0x8180}, {0x6F12, 0x00F0}, {0x6F12, 0x48B8}, {0x6F12, 0x2000}, {0x6F12, 0x2588}, {0x6F12, 0x2000}, {0x6F12, 0x16C0}, {0x6F12, 0x0000}, {0x6F12, 0x0000}, {0x6F12, 0x0000}, {0x6F12, 0x0000}, {0x6F12, 0x10B5}, {0x6F12, 0x00F0}, {0x6F12, 0x5DF8}, {0x6F12, 0x2748}, {0x6F12, 0x4078}, {0x6F12, 0x0028}, {0x6F12, 0x0AD0}, {0x6F12, 0x00F0}, {0x6F12, 0x5CF8}, {0x6F12, 0x2549}, {0x6F12, 0xB1F8}, {0x6F12, 0x1403}, {0x6F12, 0x4200}, {0x6F12, 0x2448}, {0x6F12, 0x4282}, {0x6F12, 0x91F8}, {0x6F12, 0x9610}, {0x6F12, 0x4187}, {0x6F12, 0x10BD}, {0x6F12, 0x70B5}, {0x6F12, 0x0446}, {0x6F12, 0x2148}, {0x6F12, 0x0022}, {0x6F12, 0x4068}, {0x6F12, 0x86B2}, {0x6F12, 0x050C}, {0x6F12, 0x3146}, {0x6F12, 0x2846}, {0x6F12, 0x00F0}, {0x6F12, 0x4CF8}, {0x6F12, 0x2046}, {0x6F12, 0x00F0}, {0x6F12, 0x4EF8}, {0x6F12, 0x14F8}, {0x6F12, 0x680F}, {0x6F12, 0x6178}, {0x6F12, 0x40EA}, {0x6F12, 0x4100}, {0x6F12, 0x1749}, {0x6F12, 0xC886}, {0x6F12, 0x1848}, {0x6F12, 0x2278}, {0x6F12, 0x007C}, {0x6F12, 0x4240}, {0x6F12, 0x1348}, {0x6F12, 0xA230}, {0x6F12, 0x8378}, {0x6F12, 0x43EA}, {0x6F12, 0xC202}, {0x6F12, 0x0378}, {0x6F12, 0x4078}, {0x6F12, 0x9B00}, {0x6F12, 0x43EA}, {0x6F12, 0x4000}, {0x6F12, 0x0243}, {0x6F12, 0xD0B2}, {0x6F12, 0x0882}, {0x6F12, 0x3146}, {0x6F12, 0x2846}, {0x6F12, 0xBDE8}, {0x6F12, 0x7040}, {0x6F12, 0x0122}, {0x6F12, 0x00F0}, {0x6F12, 0x2AB8}, {0x6F12, 0x10B5}, {0x6F12, 0x0022}, {0x6F12, 0xAFF2}, {0x6F12, 0x8701}, {0x6F12, 0x0B48}, {0x6F12, 0x00F0}, {0x6F12, 0x2DF8}, {0x6F12, 0x084C}, {0x6F12, 0x0022}, {0x6F12, 0xAFF2}, {0x6F12, 0x6D01}, {0x6F12, 0x2060}, {0x6F12, 0x0848}, {0x6F12, 0x00F0}, {0x6F12, 0x25F8}, {0x6F12, 0x6060}, {0x6F12, 0x10BD}, {0x6F12, 0x0000}, {0x6F12, 0x2000}, {0x6F12, 0x0550}, {0x6F12, 0x2000}, {0x6F12, 0x0C60}, {0x6F12, 0x4000}, {0x6F12, 0xD000}, {0x6F12, 0x2000}, {0x6F12, 0x2580}, {0x6F12, 0x2000}, {0x6F12, 0x16F0}, {0x6F12, 0x0000}, {0x6F12, 0x2221}, {0x6F12, 0x0000}, {0x6F12, 0x2249}, {0x6F12, 0x42F2}, {0x6F12, 0x351C}, {0x6F12, 0xC0F2}, {0x6F12, 0x000C}, {0x6F12, 0x6047}, {0x6F12, 0x42F2}, {0x6F12, 0xE11C}, {0x6F12, 0xC0F2}, {0x6F12, 0x000C}, {0x6F12, 0x6047}, {0x6F12, 0x40F2}, {0x6F12, 0x077C}, {0x6F12, 0xC0F2}, {0x6F12, 0x000C}, {0x6F12, 0x6047}, {0x6F12, 0x42F2}, {0x6F12, 0x492C}, {0x6F12, 0xC0F2}, {0x6F12, 0x000C}, {0x6F12, 0x6047}, {0x6F12, 0x4BF2}, {0x6F12, 0x453C}, {0x6F12, 0xC0F2}, {0x6F12, 0x000C}, {0x6F12, 0x6047}, {0x6F12, 0x0000}, {0x6F12, 0x0000}, {0x6F12, 0x0000}, {0x6F12, 0x0000}, {0x6F12, 0x0000}, {0x6F12, 0x0000}, {0x6F12, 0x0000}, {0x6F12, 0x30C8}, {0x6F12, 0x0157}, {0x6F12, 0x0000}, {0x6F12, 0x0003}, {0x6028, 0x2000}, {0x602A, 0x1082}, {0x6F12, 0x8010}, {0x6028, 0x4000}, {0x31CE, 0x0001}, {0x0200, 0x00C6}, {0x3734, 0x0010}, {0x3736, 0x0001}, {0x3738, 0x0001}, {0x37CC, 0x0001}, {0x3744, 0x0100}, {0x3762, 0x0105}, {0x3764, 0x0105}, {0x376A, 0x00F0}, {0x344A, 0x000F}, {0x344C, 0x003D}, {0xF460, 0x0030}, {0xF414, 0x24C2}, {0xF416, 0x0183}, {0xF468, 0x4005}, {0x3424, 0x0A07}, {0x3426, 0x0F07}, {0x3428, 0x0F07}, {0x341E, 0x0804}, {0x3420, 0x0C0C}, {0x3422, 0x2D2D}, {0xF462, 0x003A}, {0x3450, 0x0010}, {0x3452, 0x0010}, {0xF446, 0x0020}, {0xF44E, 0x000C}, {0x31FA, 0x0007}, {0x31FC, 0x0161}, {0x31FE, 0x0009}, {0x3200, 0x000C}, {0x3202, 0x007F}, {0x3204, 0x00A2}, {0x3206, 0x007D}, {0x3208, 0x00A4}, {0x3334, 0x00A7}, {0x3336, 0x00A5}, {0x3338, 0x0033}, {0x333A, 0x0006}, {0x333C, 0x009F}, {0x333E, 0x008C}, {0x3340, 0x002D}, {0x3342, 0x000A}, {0x3344, 0x002F}, {0x3346, 0x0008}, {0x3348, 0x009F}, {0x334A, 0x008C}, {0x334C, 0x002D}, {0x334E, 0x000A}, {0x3350, 0x000A}, {0x320A, 0x007B}, {0x320C, 0x0161}, {0x320E, 0x007F}, {0x3210, 0x015F}, {0x3212, 0x007B}, {0x3214, 0x00B0}, {0x3216, 0x0009}, {0x3218, 0x0038}, {0x321A, 0x0009}, {0x321C, 0x0031}, {0x321E, 0x0009}, {0x3220, 0x0038}, {0x3222, 0x0009}, {0x3224, 0x007B}, {0x3226, 0x0001}, {0x3228, 0x0010}, {0x322A, 0x00A2}, {0x322C, 0x00B1}, {0x322E, 0x0002}, {0x3230, 0x015D}, {0x3232, 0x0001}, {0x3234, 0x015D}, {0x3236, 0x0001}, {0x3238, 0x000B}, {0x323A, 0x0016}, {0x323C, 0x000D}, {0x323E, 0x001C}, {0x3240, 0x000D}, {0x3242, 0x0054}, {0x3244, 0x007B}, {0x3246, 0x00CC}, {0x3248, 0x015D}, {0x324A, 0x007E}, {0x324C, 0x0095}, {0x324E, 0x0085}, {0x3250, 0x009D}, {0x3252, 0x008D}, {0x3254, 0x009D}, {0x3256, 0x007E}, {0x3258, 0x0080}, {0x325A, 0x0001}, {0x325C, 0x0005}, {0x325E, 0x0085}, {0x3260, 0x009D}, {0x3262, 0x0001}, {0x3264, 0x0005}, {0x3266, 0x007E}, {0x3268, 0x0080}, {0x326A, 0x0053}, {0x326C, 0x007D}, {0x326E, 0x00CB}, {0x3270, 0x015E}, {0x3272, 0x0001}, {0x3274, 0x0005}, {0x3276, 0x0009}, {0x3278, 0x000C}, {0x327A, 0x007E}, {0x327C, 0x0098}, {0x327E, 0x0009}, {0x3280, 0x000C}, {0x3282, 0x007E}, {0x3284, 0x0080}, {0x3286, 0x0044}, {0x3288, 0x0163}, {0x328A, 0x0045}, {0x328C, 0x0047}, {0x328E, 0x007D}, {0x3290, 0x0080}, {0x3292, 0x015F}, {0x3294, 0x0162}, {0x3296, 0x007D}, {0x3298, 0x0000}, {0x329A, 0x0000}, {0x329C, 0x0000}, {0x329E, 0x0000}, {0x32A0, 0x0008}, {0x32A2, 0x0010}, {0x32A4, 0x0018}, {0x32A6, 0x0020}, {0x32A8, 0x0000}, {0x32AA, 0x0008}, {0x32AC, 0x0010}, {0x32AE, 0x0018}, {0x32B0, 0x0020}, {0x32B2, 0x0020}, {0x32B4, 0x0020}, {0x32B6, 0x0020}, {0x32B8, 0x0000}, {0x32BA, 0x0000}, {0x32BC, 0x0000}, {0x32BE, 0x0000}, {0x32C0, 0x0000}, {0x32C2, 0x0000}, {0x32C4, 0x0000}, {0x32C6, 0x0000}, {0x32C8, 0x0000}, {0x32CA, 0x0000}, {0x32CC, 0x0000}, {0x32CE, 0x0000}, {0x32D0, 0x0000}, {0x32D2, 0x0000}, {0x32D4, 0x0000}, {0x32D6, 0x0000}, {0x32D8, 0x0000}, {0x32DA, 0x0000}, {0x32DC, 0x0000}, {0x32DE, 0x0000}, {0x32E0, 0x0000}, {0x32E2, 0x0000}, {0x32E4, 0x0000}, {0x32E6, 0x0000}, {0x32E8, 0x0000}, {0x32EA, 0x0000}, {0x32EC, 0x0000}, {0x32EE, 0x0000}, {0x32F0, 0x0000}, {0x32F2, 0x0000}, {0x32F4, 0x000A}, {0x32F6, 0x0002}, {0x32F8, 0x0008}, {0x32FA, 0x0010}, {0x32FC, 0x0020}, {0x32FE, 0x0028}, {0x3300, 0x0038}, {0x3302, 0x0040}, {0x3304, 0x0050}, {0x3306, 0x0058}, {0x3308, 0x0068}, {0x330A, 0x0070}, {0x330C, 0x0080}, {0x330E, 0x0088}, {0x3310, 0x0098}, {0x3312, 0x00A0}, {0x3314, 0x00B0}, {0x3316, 0x00B8}, {0x3318, 0x00C8}, {0x331A, 0x00D0}, {0x331C, 0x00E0}, {0x331E, 0x00E8}, {0x3320, 0x0017}, {0x3322, 0x002F}, {0x3324, 0x0047}, {0x3326, 0x005F}, {0x3328, 0x0077}, {0x332A, 0x008F}, {0x332C, 0x00A7}, {0x332E, 0x00BF}, {0x3330, 0x00D7}, {0x3332, 0x00EF}, {0x3352, 0x00A5}, {0x3354, 0x00AF}, {0x3356, 0x0187}, {0x3358, 0x0000}, {0x335A, 0x009E}, {0x335C, 0x016B}, {0x335E, 0x0015}, {0x3360, 0x00A5}, {0x3362, 0x00AF}, {0x3364, 0x01FB}, {0x3366, 0x0000}, {0x3368, 0x009E}, {0x336A, 0x016B}, {0x336C, 0x0015}, {0x336E, 0x00A5}, {0x3370, 0x00A6}, {0x3372, 0x0187}, {0x3374, 0x0000}, {0x3376, 0x009E}, {0x3378, 0x016B}, {0x337A, 0x0015}, {0x337C, 0x00A5}, {0x337E, 0x00A6}, {0x3380, 0x01FB}, {0x3382, 0x0000}, {0x3384, 0x009E}, {0x3386, 0x016B}, {0x3388, 0x0015}, {0x319A, 0x0005}, {0x1006, 0x0005}, {0x3416, 0x0001}, {0x308C, 0x0008}, {0x307C, 0x0240}, {0x375E, 0x0050}, {0x31CE, 0x0101}, {0x374E, 0x0007}, {0x3460, 0x0001}, {0x3052, 0x0002}, {0x3058, 0x0100}, {0x6028, 0x2000}, {0x602A, 0x108A}, {0x6F12, 0x0359}, {0x6F12, 0x0100}, {0x6028, 0x4000}, {0x1124, 0x4100}, {0x1126, 0x0000}, {0x112C, 0x4100}, {0x112E, 0x0000}, {0x3442, 0x0100}, {0x3098, 0x0364}, // /* 4208*3120 */ {0x6028, 0x2000}, {0x602A, 0x0F74}, {0x6F12, 0x0040}, {0x6F12, 0x0040}, {0x6028, 0x4000}, {0x0344, 0x0008}, {0x0346, 0x0008}, {0x0348, 0x1077}, {0x034A, 0x0C37}, {0x034C, 0x1070}, {0x034E, 0x0C30}, {0x0900, 0x0011}, {0x0380, 0x0001}, {0x0382, 0x0001}, {0x0384, 0x0001}, {0x0386, 0x0001}, {0x0400, 0x0000}, {0x0404, 0x0010}, {0x0114, 0x0300}, {0x0110, 0x0002}, {0x0136, 0x1800}, {0x0304, 0x0006}, {0x0306, 0x00B1}, {0x0302, 0x0001}, {0x0300, 0x0005}, {0x030C, 0x0006}, {0x030E, 0x0119}, {0x030A, 0x0001}, {0x0308, 0x0008}, {0x0342, 0x16B0}, {0x0340, 0x0CA2}, {0x0202, 0x0200}, {0x0200, 0x00C6}, {0x0B04, 0x0101}, {0x0B08, 0x0000}, {0x0B00, 0x0007}, {0x316A, 0x00A0}, {REG_NULL, 0x0000}, }; static const struct s5k3l8xx_mode supported_modes[] = { { .width = 4208, .height = 3120, .max_fps = { .numerator = 10000, .denominator = 300000, }, .exp_def = 0x0c00, .hts_def = 0x1320, .vts_def = 0x0ca8, .bpp = 10, .reg_list = s5k3l8xx_4208x3120_30fps_regs, .link_freq_idx = 0, }, }; static const s64 link_freq_items[] = { S5K3L8XX_LINK_FREQ_562MHZ, }; static const char * const s5k3l8xx_test_pattern_menu[] = { "Disabled", "Vertical Color Bar Type 1", "Vertical Color Bar Type 2", "Vertical Color Bar Type 3" }; /* Write registers up to 4 at a time */ static int s5k3l8xx_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, "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 s5k3l8xx_write_array(struct i2c_client *client, const struct regval *regs) { u32 i; int ret = 0; for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++) ret = s5k3l8xx_write_reg(client, regs[i].addr, S5K3L8XX_REG_VALUE_16BIT, regs[i].val); return ret; } /* Read registers up to 4 at a time */ static int s5k3l8xx_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)) { dev_err(&client->dev, "read reg:0x%x failed !\n", reg); return -EIO; } *val = be32_to_cpu(data_be); return 0; } static int s5k3l8xx_get_reso_dist(const struct s5k3l8xx_mode *mode, struct v4l2_mbus_framefmt *framefmt) { return abs(mode->width - framefmt->width) + abs(mode->height - framefmt->height); } static const struct s5k3l8xx_mode * s5k3l8xx_find_best_fit(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 < ARRAY_SIZE(supported_modes); i++) { dist = s5k3l8xx_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 s5k3l8xx_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct s5k3l8xx *s5k3l8xx = to_s5k3l8xx(sd); const struct s5k3l8xx_mode *mode; s64 h_blank, vblank_def; u64 pixel_rate = 0; u32 lane_num = S5K3L8XX_LANES; mutex_lock(&s5k3l8xx->mutex); mode = s5k3l8xx_find_best_fit(fmt); fmt->format.code = S5K3L8XX_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(&s5k3l8xx->mutex); return -ENOTTY; #endif } else { s5k3l8xx->cur_mode = mode; h_blank = mode->hts_def - mode->width; __v4l2_ctrl_modify_range(s5k3l8xx->hblank, h_blank, h_blank, 1, h_blank); vblank_def = mode->vts_def - mode->height; __v4l2_ctrl_modify_range(s5k3l8xx->vblank, vblank_def, S5K3L8XX_VTS_MAX - mode->height, 1, vblank_def); pixel_rate = (u32)link_freq_items[mode->link_freq_idx] / mode->bpp * 2 * lane_num; __v4l2_ctrl_s_ctrl_int64(s5k3l8xx->pixel_rate, pixel_rate); __v4l2_ctrl_s_ctrl(s5k3l8xx->link_freq, mode->link_freq_idx); } mutex_unlock(&s5k3l8xx->mutex); return 0; } static int s5k3l8xx_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct s5k3l8xx *s5k3l8xx = to_s5k3l8xx(sd); const struct s5k3l8xx_mode *mode = s5k3l8xx->cur_mode; mutex_lock(&s5k3l8xx->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(&s5k3l8xx->mutex); return -ENOTTY; #endif } else { fmt->format.width = mode->width; fmt->format.height = mode->height; fmt->format.code = S5K3L8XX_MEDIA_BUS_FMT; fmt->format.field = V4L2_FIELD_NONE; } mutex_unlock(&s5k3l8xx->mutex); return 0; } static int s5k3l8xx_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 = S5K3L8XX_MEDIA_BUS_FMT; return 0; } static int s5k3l8xx_enum_frame_sizes(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { if (fse->index >= ARRAY_SIZE(supported_modes)) return -EINVAL; if (fse->code != S5K3L8XX_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 s5k3l8xx_enable_test_pattern(struct s5k3l8xx *s5k3l8xx, u32 pattern) { u32 val; if (pattern) val = (pattern - 1) | S5K3L8XX_TEST_PATTERN_ENABLE; else val = S5K3L8XX_TEST_PATTERN_DISABLE; return s5k3l8xx_write_reg(s5k3l8xx->client, S5K3L8XX_REG_TEST_PATTERN, S5K3L8XX_REG_VALUE_08BIT, val); } static int s5k3l8xx_g_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_frame_interval *fi) { struct s5k3l8xx *s5k3l8xx = to_s5k3l8xx(sd); const struct s5k3l8xx_mode *mode = s5k3l8xx->cur_mode; mutex_lock(&s5k3l8xx->mutex); fi->interval = mode->max_fps; mutex_unlock(&s5k3l8xx->mutex); return 0; } static void s5k3l8xx_get_module_inf(struct s5k3l8xx *s5k3l8xx, struct rkmodule_inf *inf) { memset(inf, 0, sizeof(*inf)); strscpy(inf->base.sensor, S5K3L8XX_NAME, sizeof(inf->base.sensor)); strscpy(inf->base.module, s5k3l8xx->module_name, sizeof(inf->base.module)); strscpy(inf->base.lens, s5k3l8xx->len_name, sizeof(inf->base.lens)); } static long s5k3l8xx_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) { struct s5k3l8xx *s5k3l8xx = to_s5k3l8xx(sd); long ret = 0; u32 stream = 0; switch (cmd) { case RKMODULE_GET_MODULE_INFO: s5k3l8xx_get_module_inf(s5k3l8xx, (struct rkmodule_inf *)arg); break; case RKMODULE_SET_QUICK_STREAM: stream = *((u32 *)arg); if (stream) ret = s5k3l8xx_write_reg(s5k3l8xx->client, S5K3L8XX_REG_CTRL_MODE, S5K3L8XX_REG_VALUE_08BIT, S5K3L8XX_MODE_STREAMING); else ret = s5k3l8xx_write_reg(s5k3l8xx->client, S5K3L8XX_REG_CTRL_MODE, S5K3L8XX_REG_VALUE_08BIT, S5K3L8XX_MODE_SW_STANDBY); break; default: ret = -ENOIOCTLCMD; break; } return ret; } #ifdef CONFIG_COMPAT static long s5k3l8xx_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 *cfg; long ret = 0; u32 stream = 0; switch (cmd) { case RKMODULE_GET_MODULE_INFO: inf = kzalloc(sizeof(*inf), GFP_KERNEL); if (!inf) { ret = -ENOMEM; return ret; } ret = s5k3l8xx_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: cfg = kzalloc(sizeof(*cfg), GFP_KERNEL); if (!cfg) { ret = -ENOMEM; return ret; } ret = copy_from_user(cfg, up, sizeof(*cfg)); if (!ret) ret = s5k3l8xx_ioctl(sd, cmd, cfg); else ret = -EFAULT; kfree(cfg); break; case RKMODULE_SET_QUICK_STREAM: ret = copy_from_user(&stream, up, sizeof(u32)); if (!ret) ret = s5k3l8xx_ioctl(sd, cmd, &stream); else ret = -EFAULT; break; default: ret = -ENOIOCTLCMD; break; } return ret; } #endif static int __s5k3l8xx_start_stream(struct s5k3l8xx *s5k3l8xx) { int ret; ret = s5k3l8xx_write_array(s5k3l8xx->client, s5k3l8xx->cur_mode->reg_list); if (ret) return ret; /* In case these controls are set before streaming */ mutex_unlock(&s5k3l8xx->mutex); ret = v4l2_ctrl_handler_setup(&s5k3l8xx->ctrl_handler); mutex_lock(&s5k3l8xx->mutex); if (ret) return ret; s5k3l8xx_write_reg(s5k3l8xx->client, S5K3L8XX_REG_STREAM_ON, S5K3L8XX_REG_VALUE_08BIT, S5K3L8XX_MODE_STREAMING); s5k3l8xx_write_reg(s5k3l8xx->client, S5K3L8XX_REG_CTRL_MODE, S5K3L8XX_REG_VALUE_08BIT, S5K3L8XX_MODE_STREAMING); s5k3l8xx_write_reg(s5k3l8xx->client, S5K3L8XX_REG_STREAM_ON, S5K3L8XX_REG_VALUE_08BIT, S5K3L8XX_MODE_SW_STANDBY); return 0; } static int __s5k3l8xx_stop_stream(struct s5k3l8xx *s5k3l8xx) { return s5k3l8xx_write_reg(s5k3l8xx->client, S5K3L8XX_REG_CTRL_MODE, S5K3L8XX_REG_VALUE_08BIT, S5K3L8XX_MODE_SW_STANDBY); } static int s5k3l8xx_s_stream(struct v4l2_subdev *sd, int on) { struct s5k3l8xx *s5k3l8xx = to_s5k3l8xx(sd); struct i2c_client *client = s5k3l8xx->client; int ret = 0; dev_info(&client->dev, "%s: on: %d, %dx%d@%d\n", __func__, on, s5k3l8xx->cur_mode->width, s5k3l8xx->cur_mode->height, DIV_ROUND_CLOSEST(s5k3l8xx->cur_mode->max_fps.denominator, s5k3l8xx->cur_mode->max_fps.numerator)); mutex_lock(&s5k3l8xx->mutex); on = !!on; if (on == s5k3l8xx->streaming) 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 = __s5k3l8xx_start_stream(s5k3l8xx); if (ret) { v4l2_err(sd, "start stream failed while write regs\n"); pm_runtime_put(&client->dev); goto unlock_and_return; } } else { __s5k3l8xx_stop_stream(s5k3l8xx); pm_runtime_put(&client->dev); } s5k3l8xx->streaming = on; unlock_and_return: mutex_unlock(&s5k3l8xx->mutex); return ret; } static int s5k3l8xx_s_power(struct v4l2_subdev *sd, int on) { struct s5k3l8xx *s5k3l8xx = to_s5k3l8xx(sd); struct i2c_client *client = s5k3l8xx->client; int ret = 0; mutex_lock(&s5k3l8xx->mutex); /* If the power state is not modified - no work to do. */ if (s5k3l8xx->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; } s5k3l8xx->power_on = true; } else { pm_runtime_put(&client->dev); s5k3l8xx->power_on = false; } unlock_and_return: mutex_unlock(&s5k3l8xx->mutex); return ret; } /* Calculate the delay in us by clock rate and clock cycles */ static inline u32 s5k3l8xx_cal_delay(u32 cycles) { return DIV_ROUND_UP(cycles, S5K3L8XX_XVCLK_FREQ / 1000 / 1000); } static int __s5k3l8xx_power_on(struct s5k3l8xx *s5k3l8xx) { int ret; u32 delay_us; struct device *dev = &s5k3l8xx->client->dev; if (!IS_ERR(s5k3l8xx->power_gpio)) gpiod_set_value_cansleep(s5k3l8xx->power_gpio, 1); usleep_range(1000, 2000); if (!IS_ERR_OR_NULL(s5k3l8xx->pins_default)) { ret = pinctrl_select_state(s5k3l8xx->pinctrl, s5k3l8xx->pins_default); if (ret < 0) dev_err(dev, "could not set pins\n"); } ret = clk_set_rate(s5k3l8xx->xvclk, S5K3L8XX_XVCLK_FREQ); if (ret < 0) dev_warn(dev, "Failed to set xvclk rate (24MHz)\n"); if (clk_get_rate(s5k3l8xx->xvclk) != S5K3L8XX_XVCLK_FREQ) dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n"); ret = clk_prepare_enable(s5k3l8xx->xvclk); if (ret < 0) { dev_err(dev, "Failed to enable xvclk\n"); return ret; } ret = regulator_bulk_enable(S5K3L8XX_NUM_SUPPLIES, s5k3l8xx->supplies); if (ret < 0) { dev_err(dev, "Failed to enable regulators\n"); goto disable_clk; } /* need reset after all vdd power on */ usleep_range(2000, 2100); if (!IS_ERR(s5k3l8xx->reset_gpio)) gpiod_set_value_cansleep(s5k3l8xx->reset_gpio, 0); usleep_range(1000, 1100); if (!IS_ERR(s5k3l8xx->reset_gpio)) gpiod_set_value_cansleep(s5k3l8xx->reset_gpio, 1); usleep_range(500, 1000); if (!IS_ERR(s5k3l8xx->pwdn_gpio)) gpiod_set_value_cansleep(s5k3l8xx->pwdn_gpio, 1); /* 23000 cycles prior to first SCCB transaction */ delay_us = s5k3l8xx_cal_delay(23000); usleep_range(delay_us, delay_us * 2); return 0; disable_clk: clk_disable_unprepare(s5k3l8xx->xvclk); return ret; } static void __s5k3l8xx_power_off(struct s5k3l8xx *s5k3l8xx) { int ret; struct device *dev = &s5k3l8xx->client->dev; if (!IS_ERR(s5k3l8xx->pwdn_gpio)) gpiod_set_value_cansleep(s5k3l8xx->pwdn_gpio, 0); clk_disable_unprepare(s5k3l8xx->xvclk); if (!IS_ERR(s5k3l8xx->reset_gpio)) gpiod_set_value_cansleep(s5k3l8xx->reset_gpio, 0); if (!IS_ERR_OR_NULL(s5k3l8xx->pins_sleep)) { ret = pinctrl_select_state(s5k3l8xx->pinctrl, s5k3l8xx->pins_sleep); if (ret < 0) dev_dbg(dev, "could not set pins\n"); } if (!IS_ERR(s5k3l8xx->power_gpio)) gpiod_set_value_cansleep(s5k3l8xx->power_gpio, 0); regulator_bulk_disable(S5K3L8XX_NUM_SUPPLIES, s5k3l8xx->supplies); } static int __maybe_unused s5k3l8xx_runtime_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); struct s5k3l8xx *s5k3l8xx = to_s5k3l8xx(sd); return __s5k3l8xx_power_on(s5k3l8xx); } static int __maybe_unused s5k3l8xx_runtime_suspend(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); struct s5k3l8xx *s5k3l8xx = to_s5k3l8xx(sd); __s5k3l8xx_power_off(s5k3l8xx); return 0; } #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static int s5k3l8xx_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { struct s5k3l8xx *s5k3l8xx = to_s5k3l8xx(sd); struct v4l2_mbus_framefmt *try_fmt = v4l2_subdev_get_try_format(sd, fh->state, 0); const struct s5k3l8xx_mode *def_mode = &supported_modes[0]; mutex_lock(&s5k3l8xx->mutex); /* Initialize try_fmt */ try_fmt->width = def_mode->width; try_fmt->height = def_mode->height; try_fmt->code = S5K3L8XX_MEDIA_BUS_FMT; try_fmt->field = V4L2_FIELD_NONE; mutex_unlock(&s5k3l8xx->mutex); /* No crop or compose */ return 0; } #endif static int s5k3l8xx_enum_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_interval_enum *fie) { if (fie->index >= ARRAY_SIZE(supported_modes)) return -EINVAL; fie->code = S5K3L8XX_MEDIA_BUS_FMT; fie->width = supported_modes[fie->index].width; fie->height = supported_modes[fie->index].height; fie->interval = supported_modes[fie->index].max_fps; return 0; } static int s5k3l8xx_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_mbus_config *config) { config->type = V4L2_MBUS_CSI2_DPHY; config->bus.mipi_csi2.num_data_lanes = S5K3L8XX_LANES; return 0; } #define CROP_START(SRC, DST) (((SRC) - (DST)) / 2 / 4 * 4) #define DST_WIDTH_2096 2096 #define DST_HEIGHT_1560 1560 static int s5k3l8xx_get_selection(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_selection *sel) { struct s5k3l8xx *s5k3l8xx = to_s5k3l8xx(sd); if (sel->target == V4L2_SEL_TGT_CROP_BOUNDS) { if (s5k3l8xx->cur_mode->width == 2104) { sel->r.left = CROP_START(s5k3l8xx->cur_mode->width, DST_WIDTH_2096); sel->r.width = DST_WIDTH_2096; sel->r.top = CROP_START(s5k3l8xx->cur_mode->height, DST_HEIGHT_1560); sel->r.height = DST_HEIGHT_1560; } else { sel->r.left = CROP_START(s5k3l8xx->cur_mode->width, s5k3l8xx->cur_mode->width); sel->r.width = s5k3l8xx->cur_mode->width; sel->r.top = CROP_START(s5k3l8xx->cur_mode->height, s5k3l8xx->cur_mode->height); sel->r.height = s5k3l8xx->cur_mode->height; } return 0; } return -EINVAL; } static const struct dev_pm_ops s5k3l8xx_pm_ops = { SET_RUNTIME_PM_OPS(s5k3l8xx_runtime_suspend, s5k3l8xx_runtime_resume, NULL) }; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static const struct v4l2_subdev_internal_ops s5k3l8xx_internal_ops = { .open = s5k3l8xx_open, }; #endif static const struct v4l2_subdev_core_ops s5k3l8xx_core_ops = { .s_power = s5k3l8xx_s_power, .ioctl = s5k3l8xx_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl32 = s5k3l8xx_compat_ioctl32, #endif }; static const struct v4l2_subdev_video_ops s5k3l8xx_video_ops = { .s_stream = s5k3l8xx_s_stream, .g_frame_interval = s5k3l8xx_g_frame_interval, }; static const struct v4l2_subdev_pad_ops s5k3l8xx_pad_ops = { .enum_mbus_code = s5k3l8xx_enum_mbus_code, .enum_frame_size = s5k3l8xx_enum_frame_sizes, .enum_frame_interval = s5k3l8xx_enum_frame_interval, .get_fmt = s5k3l8xx_get_fmt, .set_fmt = s5k3l8xx_set_fmt, .get_selection = s5k3l8xx_get_selection, .get_mbus_config = s5k3l8xx_g_mbus_config, }; static const struct v4l2_subdev_ops s5k3l8xx_subdev_ops = { .core = &s5k3l8xx_core_ops, .video = &s5k3l8xx_video_ops, .pad = &s5k3l8xx_pad_ops, }; static int s5k3l8xx_set_ctrl(struct v4l2_ctrl *ctrl) { struct s5k3l8xx *s5k3l8xx = container_of(ctrl->handler, struct s5k3l8xx, ctrl_handler); struct i2c_client *client = s5k3l8xx->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 = s5k3l8xx->cur_mode->height + ctrl->val - 4; __v4l2_ctrl_modify_range(s5k3l8xx->exposure, s5k3l8xx->exposure->minimum, max, s5k3l8xx->exposure->step, s5k3l8xx->exposure->default_value); break; } if (!pm_runtime_get_if_in_use(&client->dev)) return 0; switch (ctrl->id) { case V4L2_CID_EXPOSURE: /* 4 least significant bits of expsoure are fractional part */ ret = s5k3l8xx_write_reg(s5k3l8xx->client, S5K3L8XX_REG_EXPOSURE, S5K3L8XX_REG_VALUE_16BIT, ctrl->val); break; case V4L2_CID_ANALOGUE_GAIN: ret = s5k3l8xx_write_reg(s5k3l8xx->client, S5K3L8XX_REG_ANALOG_GAIN, S5K3L8XX_REG_VALUE_16BIT, ctrl->val); break; case V4L2_CID_VBLANK: ret = s5k3l8xx_write_reg(s5k3l8xx->client, S5K3L8XX_REG_VTS, S5K3L8XX_REG_VALUE_16BIT, ctrl->val + s5k3l8xx->cur_mode->height); break; case V4L2_CID_TEST_PATTERN: ret = s5k3l8xx_enable_test_pattern(s5k3l8xx, 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 s5k3l8xx_ctrl_ops = { .s_ctrl = s5k3l8xx_set_ctrl, }; static int s5k3l8xx_initialize_controls(struct s5k3l8xx *s5k3l8xx) { const struct s5k3l8xx_mode *mode; struct v4l2_ctrl_handler *handler; s64 exposure_max, vblank_def; u32 h_blank; int ret; u64 dst_pixel_rate = 0; u32 lane_num = S5K3L8XX_LANES; handler = &s5k3l8xx->ctrl_handler; mode = s5k3l8xx->cur_mode; ret = v4l2_ctrl_handler_init(handler, 8); if (ret) return ret; handler->lock = &s5k3l8xx->mutex; s5k3l8xx->link_freq = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ, 1, 0, link_freq_items); dst_pixel_rate = (u32)link_freq_items[mode->link_freq_idx] / mode->bpp * 2 * lane_num; s5k3l8xx->pixel_rate = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE, 0, S5K3L8XX_PIXEL_RATE, 1, dst_pixel_rate); __v4l2_ctrl_s_ctrl(s5k3l8xx->link_freq, mode->link_freq_idx); h_blank = mode->hts_def - mode->width; s5k3l8xx->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK, h_blank, h_blank, 1, h_blank); if (s5k3l8xx->hblank) s5k3l8xx->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; vblank_def = mode->vts_def - mode->height; s5k3l8xx->vblank = v4l2_ctrl_new_std(handler, &s5k3l8xx_ctrl_ops, V4L2_CID_VBLANK, vblank_def, S5K3L8XX_VTS_MAX - mode->height, 1, vblank_def); exposure_max = mode->vts_def - 4; s5k3l8xx->exposure = v4l2_ctrl_new_std(handler, &s5k3l8xx_ctrl_ops, V4L2_CID_EXPOSURE, S5K3L8XX_EXPOSURE_MIN, exposure_max, S5K3L8XX_EXPOSURE_STEP, mode->exp_def); s5k3l8xx->anal_gain = v4l2_ctrl_new_std(handler, &s5k3l8xx_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, S5K3L8XX_GAIN_MIN, S5K3L8XX_GAIN_MAX, S5K3L8XX_GAIN_STEP, S5K3L8XX_GAIN_DEFAULT); s5k3l8xx->test_pattern = v4l2_ctrl_new_std_menu_items(handler, &s5k3l8xx_ctrl_ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(s5k3l8xx_test_pattern_menu) - 1, 0, 0, s5k3l8xx_test_pattern_menu); if (handler->error) { ret = handler->error; dev_err(&s5k3l8xx->client->dev, "Failed to init controls(%d)\n", ret); goto err_free_handler; } s5k3l8xx->subdev.ctrl_handler = handler; return 0; err_free_handler: v4l2_ctrl_handler_free(handler); return ret; } static int s5k3l8xx_check_sensor_id(struct s5k3l8xx *s5k3l8xx, struct i2c_client *client) { struct device *dev = &s5k3l8xx->client->dev; u32 id = 0; int ret; client->addr = S5K3L8XX_MAJOR_I2C_ADDR; ret = s5k3l8xx_read_reg(client, S5K3L8XX_REG_CHIP_ID, S5K3L8XX_REG_VALUE_16BIT, &id); if (id != CHIP_ID) { dev_err(dev, "Unexpected sensor id(%04x), ret(%d)\n", id, ret); client->addr = S5K3L8XX_MINOR_I2C_ADDR; ret = s5k3l8xx_read_reg(client, S5K3L8XX_REG_CHIP_ID, S5K3L8XX_REG_VALUE_16BIT, &id); if (id != CHIP_ID) { dev_err(dev, "Unexpected sensor id(%06x), ret(%d)\n", id, ret); return -ENODEV; } } ret = s5k3l8xx_read_reg(client, S5K3L8XX_CHIP_REVISION_REG, S5K3L8XX_REG_VALUE_08BIT, &id); if (ret) { dev_err(dev, "Read chip revision register error\n"); return ret; } dev_info(dev, "Detected Samsung %04x sensor, REVISION 0x%x\n", CHIP_ID, id); return 0; } static int s5k3l8xx_configure_regulators(struct s5k3l8xx *s5k3l8xx) { unsigned int i; for (i = 0; i < S5K3L8XX_NUM_SUPPLIES; i++) s5k3l8xx->supplies[i].supply = s5k3l8xx_supply_names[i]; return devm_regulator_bulk_get(&s5k3l8xx->client->dev, S5K3L8XX_NUM_SUPPLIES, s5k3l8xx->supplies); } static int s5k3l8xx_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; struct device_node *node = dev->of_node; struct s5k3l8xx *s5k3l8xx; struct v4l2_subdev *sd; char facing[2]; int ret; dev_info(dev, "driver version: %02x.%02x.%02x", DRIVER_VERSION >> 16, (DRIVER_VERSION & 0xff00) >> 8, DRIVER_VERSION & 0x00ff); s5k3l8xx = devm_kzalloc(dev, sizeof(*s5k3l8xx), GFP_KERNEL); if (!s5k3l8xx) return -ENOMEM; ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX, &s5k3l8xx->module_index); ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING, &s5k3l8xx->module_facing); ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME, &s5k3l8xx->module_name); ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME, &s5k3l8xx->len_name); if (ret) { dev_err(dev, "could not get module information!\n"); return -EINVAL; } s5k3l8xx->client = client; s5k3l8xx->cur_mode = &supported_modes[0]; s5k3l8xx->xvclk = devm_clk_get(dev, "xvclk"); if (IS_ERR(s5k3l8xx->xvclk)) { dev_err(dev, "Failed to get xvclk\n"); return -EINVAL; } s5k3l8xx->power_gpio = devm_gpiod_get(dev, "power", GPIOD_OUT_LOW); if (IS_ERR(s5k3l8xx->power_gpio)) dev_warn(dev, "Failed to get power-gpios, maybe no use\n"); s5k3l8xx->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(s5k3l8xx->reset_gpio)) dev_warn(dev, "Failed to get reset-gpios\n"); s5k3l8xx->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW); if (IS_ERR(s5k3l8xx->pwdn_gpio)) dev_warn(dev, "Failed to get pwdn-gpios\n"); ret = s5k3l8xx_configure_regulators(s5k3l8xx); if (ret) { dev_err(dev, "Failed to get power regulators\n"); return ret; } s5k3l8xx->pinctrl = devm_pinctrl_get(dev); if (!IS_ERR(s5k3l8xx->pinctrl)) { s5k3l8xx->pins_default = pinctrl_lookup_state(s5k3l8xx->pinctrl, OF_CAMERA_PINCTRL_STATE_DEFAULT); if (IS_ERR(s5k3l8xx->pins_default)) dev_err(dev, "could not get default pinstate\n"); s5k3l8xx->pins_sleep = pinctrl_lookup_state(s5k3l8xx->pinctrl, OF_CAMERA_PINCTRL_STATE_SLEEP); if (IS_ERR(s5k3l8xx->pins_sleep)) dev_err(dev, "could not get sleep pinstate\n"); } mutex_init(&s5k3l8xx->mutex); sd = &s5k3l8xx->subdev; v4l2_i2c_subdev_init(sd, client, &s5k3l8xx_subdev_ops); ret = s5k3l8xx_initialize_controls(s5k3l8xx); if (ret) goto err_destroy_mutex; ret = __s5k3l8xx_power_on(s5k3l8xx); if (ret) goto err_free_handler; ret = s5k3l8xx_check_sensor_id(s5k3l8xx, client); if (ret) goto err_power_off; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API sd->internal_ops = &s5k3l8xx_internal_ops; sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; #endif #if defined(CONFIG_MEDIA_CONTROLLER) s5k3l8xx->pad.flags = MEDIA_PAD_FL_SOURCE; sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; ret = media_entity_pads_init(&sd->entity, 1, &s5k3l8xx->pad); if (ret < 0) goto err_power_off; #endif memset(facing, 0, sizeof(facing)); if (strcmp(s5k3l8xx->module_facing, "back") == 0) facing[0] = 'b'; else facing[0] = 'f'; snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s", s5k3l8xx->module_index, facing, S5K3L8XX_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: __s5k3l8xx_power_off(s5k3l8xx); err_free_handler: v4l2_ctrl_handler_free(&s5k3l8xx->ctrl_handler); err_destroy_mutex: mutex_destroy(&s5k3l8xx->mutex); return ret; } static void s5k3l8xx_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct s5k3l8xx *s5k3l8xx = to_s5k3l8xx(sd); v4l2_async_unregister_subdev(sd); #if defined(CONFIG_MEDIA_CONTROLLER) media_entity_cleanup(&sd->entity); #endif v4l2_ctrl_handler_free(&s5k3l8xx->ctrl_handler); mutex_destroy(&s5k3l8xx->mutex); pm_runtime_disable(&client->dev); if (!pm_runtime_status_suspended(&client->dev)) __s5k3l8xx_power_off(s5k3l8xx); pm_runtime_set_suspended(&client->dev); } #if IS_ENABLED(CONFIG_OF) static const struct of_device_id s5k3l8xx_of_match[] = { { .compatible = "samsung,s5k3l8xx" }, {}, }; MODULE_DEVICE_TABLE(of, s5k3l8xx_of_match); #endif static const struct i2c_device_id s5k3l8xx_match_id[] = { { "samsung,s5k3l8xx", 0 }, {}, }; static struct i2c_driver s5k3l8xx_i2c_driver = { .driver = { .name = S5K3L8XX_NAME, .pm = &s5k3l8xx_pm_ops, .of_match_table = of_match_ptr(s5k3l8xx_of_match), }, .probe = &s5k3l8xx_probe, .remove = &s5k3l8xx_remove, .id_table = s5k3l8xx_match_id, }; static int __init sensor_mod_init(void) { return i2c_add_driver(&s5k3l8xx_i2c_driver); } static void __exit sensor_mod_exit(void) { i2c_del_driver(&s5k3l8xx_i2c_driver); } device_initcall_sync(sensor_mod_init); module_exit(sensor_mod_exit); MODULE_DESCRIPTION("Samsung s5k3l8xx sensor driver"); MODULE_LICENSE("GPL");