// SPDX-License-Identifier: GPL-2.0 /* * gc2155 driver * * Copyright (C) 2018 Fuzhou Rockchip Electronics Co., Ltd. * * V0.0X01.0X01 add poweron function. * V0.0X01.0X02 fix mclk issue when probe multiple camera. * V0.0X01.0X03 add enum_frame_interval function. * V0.0X01.0X04 add exposure control and fix v4l2_ctrl init issues. */ #include #include #include #include #include #include #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, 0x04) #define GC2155_PIXEL_RATE (120 * 1000 * 1000) #define GC2155_EXPOSURE_CONTROL #define REG_CHIP_ID_H 0xf0 #define REG_CHIP_ID_L 0xf1 #define CHIP_ID_H 0x21 #define CHIP_ID_L 0x55 #define REG_NULL 0xFF #define GC2155_XVCLK_FREQ 24000000 #define GC2155_NAME "gc2155" static const char * const gc2155_supply_names[] = { "avdd", "dovdd", "dvdd", }; #define GC2155_NUM_SUPPLIES ARRAY_SIZE(gc2155_supply_names) struct regval { u8 addr; u8 val; }; struct gc2155_mode { u32 width; u32 height; unsigned int fps; struct v4l2_fract max_fps; const struct regval *reg_list; }; struct gc2155 { struct i2c_client *client; struct clk *xvclk; struct gpio_desc *reset_gpio; struct gpio_desc *pwdn_gpio; struct gpio_desc *power_gpio; struct regulator_bulk_data supplies[GC2155_NUM_SUPPLIES]; bool streaming; bool power_on; struct mutex mutex; /* lock to serialize v4l2 callback */ struct v4l2_subdev subdev; struct media_pad pad; struct v4l2_mbus_framefmt format; unsigned int fps; struct v4l2_ctrl_handler ctrls; struct v4l2_ctrl *pixel_rate; const struct gc2155_mode *cur_mode; const struct gc2155_mode *framesize_cfg; unsigned int cfg_num; u32 module_index; const char *module_facing; const char *module_name; const char *len_name; }; #define to_gc2155(sd) container_of(sd, struct gc2155, subdev) static struct regval gc2155_global_regs[] = { {0xfe, 0xf0}, {0xfe, 0xf0}, {0xfe, 0xf0}, {0xfc, 0x06}, {0xf6, 0x00}, {0xf7, 0x1d}, {0xf8, 0x84}, {0xfa, 0x00}, {0xf9, 0xfe}, {0xf2, 0x00}, /* ISP reg */ {0xfe, 0x00}, {0x03, 0x04}, {0x04, 0xe2}, {0x09, 0x00}, {0x0a, 0x00}, {0x0b, 0x00}, {0x0c, 0x00}, {0x0d, 0x04}, {0x0e, 0xc0}, {0x0f, 0x06}, {0x10, 0x50}, {0x12, 0x2e}, {0x17, 0x14}, // mirror {0x18, 0x02}, {0x19, 0x0e}, {0x1a, 0x01}, {0x1b, 0x4b}, {0x1c, 0x07}, {0x1d, 0x10}, {0x1e, 0x98}, {0x1f, 0x78}, {0x20, 0x05}, {0x21, 0x40}, {0x22, 0xf0}, {0x24, 0x16}, {0x25, 0x01}, {0x26, 0x10}, {0x2d, 0x40}, {0x30, 0x01}, {0x31, 0x90}, {0x33, 0x04}, {0x34, 0x01}, /* ISP reg */ {0xfe, 0x00}, {0x80, 0xff}, {0x81, 0x2c}, {0x82, 0xfa}, {0x83, 0x00}, {0x84, 0x00}, //yuv 01 {0x85, 0x08}, {0x86, 0x02}, {0x89, 0x03}, {0x8a, 0x00}, {0x8b, 0x00}, {0xb0, 0x55}, {0xc3, 0x11}, //00 {0xc4, 0x20}, {0xc5, 0x30}, {0xc6, 0x38}, {0xc7, 0x40}, {0xec, 0x02}, {0xed, 0x04}, {0xee, 0x60}, {0xef, 0x90}, {0xb6, 0x01}, {0x90, 0x01}, {0x91, 0x00}, {0x92, 0x00}, {0x93, 0x00}, {0x94, 0x00}, {0x95, 0x04}, {0x96, 0xb0}, {0x97, 0x06}, {0x98, 0x40}, /* BLK */ {0xfe, 0x00}, {0x18, 0x02}, {0x40, 0x42}, {0x41, 0x00}, {0x43, 0x5b}, //0x54 {0x5e, 0x00}, {0x5f, 0x00}, {0x60, 0x00}, {0x61, 0x00}, {0x62, 0x00}, {0x63, 0x00}, {0x64, 0x00}, {0x65, 0x00}, {0x66, 0x20}, {0x67, 0x20}, {0x68, 0x20}, {0x69, 0x20}, {0x6a, 0x08}, {0x6b, 0x08}, {0x6c, 0x08}, {0x6d, 0x08}, {0x6e, 0x08}, {0x6f, 0x08}, {0x70, 0x08}, {0x71, 0x08}, {0x72, 0xf0}, {0x7e, 0x3c}, {0x7f, 0x00}, {0xfe, 0x00}, /* AEC */ {0xfe, 0x01}, {0x01, 0x08}, {0x02, 0xc0}, {0x03, 0x04}, {0x04, 0x90}, {0x05, 0x30}, {0x06, 0x98}, {0x07, 0x28}, {0x08, 0x6c}, {0x09, 0x00}, {0x0a, 0xc2}, {0x0b, 0x11}, {0x0c, 0x10}, {0x13, 0x2d}, {0x17, 0x00}, {0x1c, 0x11}, {0x1e, 0x61}, {0x1f, 0x30}, {0x20, 0x40}, {0x22, 0x80}, {0x23, 0x20}, {0x12, 0x35}, {0x15, 0x50}, {0x10, 0x31}, {0x3e, 0x28}, {0x3f, 0xe0}, {0x40, 0xe0}, {0x41, 0x08}, {0xfe, 0x02}, {0x0f, 0x05}, /* INTPEE */ {0xfe, 0x02}, {0x90, 0x6c}, {0x91, 0x03}, {0x92, 0xc4}, {0x97, 0x64}, {0x98, 0x88}, {0x9d, 0x08}, {0xa2, 0x11}, {0xfe, 0x00}, /* DNDD */ {0xfe, 0x02}, {0x80, 0xc1}, {0x81, 0x08}, {0x82, 0x05}, {0x83, 0x04}, {0x84, 0x0a}, {0x86, 0x80}, {0x87, 0x30}, {0x88, 0x15}, {0x89, 0x80}, {0x8a, 0x60}, {0x8b, 0x30}, /* ASDE */ {0xfe, 0x01}, {0x21, 0x14}, {0xfe, 0x02}, {0x3c, 0x06}, {0x3d, 0x40}, {0x48, 0x30}, {0x49, 0x06}, {0x4b, 0x08}, {0x4c, 0x20}, {0xa3, 0x50}, {0xa4, 0x30}, {0xa5, 0x40}, {0xa6, 0x80}, {0xab, 0x40}, {0xae, 0x0c}, {0xb3, 0x42}, {0xb4, 0x24}, {0xb6, 0x50}, {0xb7, 0x01}, {0xb9, 0x28}, {0xfe, 0x00}, /* gamma1 */ {0xfe, 0x02}, {0x10, 0x0d}, {0x11, 0x12}, {0x12, 0x17}, {0x13, 0x1c}, {0x14, 0x27}, {0x15, 0x34}, {0x16, 0x44}, {0x17, 0x55}, {0x18, 0x6e}, {0x19, 0x81}, {0x1a, 0x91}, {0x1b, 0x9c}, {0x1c, 0xaa}, {0x1d, 0xbb}, {0x1e, 0xca}, {0x1f, 0xd5}, {0x20, 0xe0}, {0x21, 0xe7}, {0x22, 0xed}, {0x23, 0xf6}, {0x24, 0xfb}, {0x25, 0xff}, /* gamma2 */ {0xfe, 0x02}, {0x26, 0x0d}, {0x27, 0x12}, {0x28, 0x17}, {0x29, 0x1c}, {0x2a, 0x27}, {0x2b, 0x34}, {0x2c, 0x44}, {0x2d, 0x55}, {0x2e, 0x6e}, {0x2f, 0x81}, {0x30, 0x91}, {0x31, 0x9c}, {0x32, 0xaa}, {0x33, 0xbb}, {0x34, 0xca}, {0x35, 0xd5}, {0x36, 0xe0}, {0x37, 0xe7}, {0x38, 0xed}, {0x39, 0xf6}, {0x3a, 0xfb}, {0x3b, 0xff}, /* YCP */ {0xfe, 0x02}, {0xd1, 0x28}, {0xd2, 0x28}, {0xdd, 0x14}, {0xde, 0x88}, {0xed, 0x80}, /* LSC */ {0xfe, 0x01}, {0xc2, 0x1f}, {0xc3, 0x13}, {0xc4, 0x0e}, {0xc8, 0x16}, {0xc9, 0x0f}, {0xca, 0x0c}, {0xbc, 0x52}, {0xbd, 0x2c}, {0xbe, 0x27}, {0xb6, 0x47}, {0xb7, 0x32}, {0xb8, 0x30}, {0xc5, 0x00}, {0xc6, 0x00}, {0xc7, 0x00}, {0xcb, 0x00}, {0xcc, 0x00}, {0xcd, 0x00}, {0xbf, 0x0e}, {0xc0, 0x00}, {0xc1, 0x00}, {0xb9, 0x08}, {0xba, 0x00}, {0xbb, 0x00}, {0xaa, 0x0a}, {0xab, 0x0c}, {0xac, 0x0d}, {0xad, 0x02}, {0xae, 0x06}, {0xaf, 0x05}, {0xb0, 0x00}, {0xb1, 0x05}, {0xb2, 0x02}, {0xb3, 0x04}, {0xb4, 0x04}, {0xb5, 0x05}, {0xd0, 0x00}, {0xd1, 0x00}, {0xd2, 0x00}, {0xd6, 0x02}, {0xd7, 0x00}, {0xd8, 0x00}, {0xd9, 0x00}, {0xda, 0x00}, {0xdb, 0x00}, {0xd3, 0x00}, {0xd4, 0x00}, {0xd5, 0x00}, {0xa4, 0x04}, {0xa5, 0x00}, {0xa6, 0x77}, {0xa7, 0x77}, {0xa8, 0x77}, {0xa9, 0x77}, {0xa1, 0x80}, {0xa2, 0x80}, {0xfe, 0x01}, {0xdc, 0x35}, {0xdd, 0x28}, {0xdf, 0x0d}, {0xe0, 0x70}, {0xe1, 0x78}, {0xe2, 0x70}, {0xe3, 0x78}, {0xe6, 0x90}, {0xe7, 0x70}, {0xe8, 0x90}, {0xe9, 0x70}, {0xfe, 0x00}, /* AWB */ {0xfe, 0x01}, {0x4f, 0x00}, {0x4f, 0x00}, {0x4b, 0x01}, {0x4f, 0x00}, {0x4c, 0x01}, {0x4d, 0x71}, {0x4e, 0x02}, {0x4c, 0x01}, {0x4d, 0x91}, {0x4e, 0x02}, {0x4c, 0x01}, {0x4d, 0x50}, {0x4e, 0x02}, {0x4c, 0x01}, {0x4d, 0x70}, {0x4e, 0x02}, {0x4c, 0x01}, {0x4d, 0x90}, {0x4e, 0x02}, {0x4c, 0x01}, {0x4d, 0xb0}, {0x4e, 0x02}, {0x4c, 0x01}, {0x4d, 0xd0}, {0x4e, 0x02}, {0x4c, 0x01}, {0x4d, 0x4f}, {0x4e, 0x02}, {0x4c, 0x01}, {0x4d, 0x6f}, {0x4e, 0x02}, {0x4c, 0x01}, {0x4d, 0x8f}, {0x4e, 0x02}, {0x4c, 0x01}, {0x4d, 0xaf}, {0x4e, 0x02}, {0x4c, 0x01}, {0x4d, 0xcf}, {0x4e, 0x02}, {0x4c, 0x01}, {0x4d, 0x6e}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0x8e}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0xae}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0xce}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0x4d}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0x6d}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0x8d}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0xad}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0xcd}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0x4c}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0x6c}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0x8c}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0xac}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0xcc}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0xec}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0x4b}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0x6b}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0x8b}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0xab}, {0x4e, 0x03}, {0x4c, 0x01}, {0x4d, 0x8a}, {0x4e, 0x04}, {0x4c, 0x01}, {0x4d, 0xaa}, {0x4e, 0x04}, {0x4c, 0x01}, {0x4d, 0xca}, {0x4e, 0x04}, {0x4c, 0x01}, {0x4d, 0xa9}, {0x4e, 0x04}, {0x4c, 0x01}, {0x4d, 0xc9}, {0x4e, 0x04}, {0x4c, 0x01}, {0x4d, 0xcb}, {0x4e, 0x05}, {0x4c, 0x01}, {0x4d, 0xeb}, {0x4e, 0x05}, {0x4c, 0x02}, {0x4d, 0x0b}, {0x4e, 0x05}, {0x4c, 0x02}, {0x4d, 0x2b}, {0x4e, 0x05}, {0x4c, 0x02}, {0x4d, 0x4b}, {0x4e, 0x05}, {0x4c, 0x01}, {0x4d, 0xea}, {0x4e, 0x05}, {0x4c, 0x02}, {0x4d, 0x0a}, {0x4e, 0x05}, {0x4c, 0x02}, {0x4d, 0x2a}, {0x4e, 0x05}, {0x4c, 0x02}, {0x4d, 0x6a}, {0x4e, 0x06}, {0x4c, 0x02}, {0x4d, 0x29}, {0x4e, 0x06}, {0x4c, 0x02}, {0x4d, 0x49}, {0x4e, 0x06}, {0x4c, 0x02}, {0x4d, 0x69}, {0x4e, 0x06}, {0x4c, 0x02}, {0x4d, 0x89}, {0x4e, 0x06}, {0x4c, 0x02}, {0x4d, 0xa9}, {0x4e, 0x06}, {0x4c, 0x02}, {0x4d, 0xc9}, {0x4e, 0x06}, {0x4c, 0x02}, {0x4d, 0x48}, {0x4e, 0x06}, {0x4c, 0x02}, {0x4d, 0x68}, {0x4e, 0x06}, {0x4c, 0x03}, {0x4d, 0x09}, {0x4e, 0x07}, {0x4c, 0x02}, {0x4d, 0xa8}, {0x4e, 0x07}, {0x4c, 0x02}, {0x4d, 0xc8}, {0x4e, 0x07}, {0x4c, 0x02}, {0x4d, 0xe8}, {0x4e, 0x07}, {0x4c, 0x03}, {0x4d, 0x08}, {0x4e, 0x07}, {0x4c, 0x03}, {0x4d, 0x28}, {0x4e, 0x07}, {0x4c, 0x02}, {0x4d, 0x87}, {0x4e, 0x07}, {0x4c, 0x02}, {0x4d, 0xa7}, {0x4e, 0x07}, {0x4c, 0x02}, {0x4d, 0xc7}, {0x4e, 0x07}, {0x4c, 0x02}, {0x4d, 0xe7}, {0x4e, 0x07}, {0x4c, 0x03}, {0x4d, 0x07}, {0x4e, 0x07}, {0x4f, 0x01}, {0xfe, 0x01}, {0x50, 0x80}, {0x51, 0xa8}, {0x52, 0x57}, {0x53, 0x38}, {0x54, 0xc7}, {0x56, 0x0e}, {0x58, 0x08}, {0x5b, 0x00}, {0x5c, 0x74}, {0x5d, 0x8b}, {0x61, 0xd3}, {0x62, 0x90}, {0x63, 0xaa}, {0x65, 0x04}, {0x67, 0xb2}, {0x68, 0xac}, {0x69, 0x00}, {0x6a, 0xb2}, {0x6b, 0xac}, {0x6c, 0xdc}, {0x6d, 0xb0}, {0x6e, 0x30}, {0x6f, 0x40}, {0x70, 0x05}, {0x71, 0x80}, {0x72, 0x80}, {0x73, 0x30}, {0x74, 0x01}, {0x75, 0x01}, {0x7f, 0x08}, {0x76, 0x70}, {0x77, 0x48}, {0x78, 0xa0}, {0xfe, 0x00}, /* CC */ {0xfe, 0x02}, {0xc0, 0x01}, {0xc1, 0x4a}, {0xc2, 0xf3}, {0xc3, 0xfc}, {0xc4, 0xe4}, {0xc5, 0x48}, {0xc6, 0xec}, {0xc7, 0x45}, {0xc8, 0xf8}, {0xc9, 0x02}, {0xca, 0xfe}, {0xcb, 0x42}, {0xcc, 0x00}, {0xcd, 0x45}, {0xce, 0xf0}, {0xcf, 0x00}, {0xe3, 0xf0}, {0xe4, 0x45}, {0xe5, 0xe8}, /* ABS */ {0xfe, 0x01}, {0x9f, 0x42}, {0xfe, 0x00}, /* frame rate 50Hz */ {0xfe, 0x00}, {0x05, 0x02}, {0x06, 0x20}, {0x07, 0x00}, {0x08, 0x50}, {0xfe, 0x01}, {0x25, 0x00}, {0x26, 0xfa}, {0x27, 0x04}, {0x28, 0xe2}, {0x29, 0x04}, {0x2a, 0xe2}, {0x2b, 0x04}, {0x2c, 0xe2}, {0x2d, 0x04}, {0x2e, 0xe2}, /* SVGA */ {0xfe, 0x00}, {0xfa, 0x00}, {0xfd, 0x01}, /* crop window */ {0xfe, 0x00}, {0x90, 0x01}, {0x91, 0x00}, {0x92, 0x00}, {0x93, 0x00}, {0x94, 0x00}, {0x95, 0x02}, {0x96, 0x58}, {0x97, 0x03}, {0x98, 0x20}, {0x99, 0x11}, {0x9a, 0x06}, /* AWB */ {0xfe, 0x00}, {0xec, 0x01}, {0xed, 0x02}, {0xee, 0x30}, {0xef, 0x48}, {0xfe, 0x01}, {0x74, 0x00}, /* AEC */ {0xfe, 0x01}, {0x01, 0x04}, {0x02, 0x60}, {0x03, 0x02}, {0x04, 0x48}, {0x05, 0x18}, {0x06, 0x4c}, {0x07, 0x14}, {0x08, 0x36}, {0x0a, 0xc0}, {0x21, 0x14}, {0xfe, 0x00}, /* gamma */ {0xfe, 0x00}, {0xc3, 0x11}, {0xc4, 0x20}, {0xc5, 0x30}, {0xfe, 0x00}, /* OUTPUT */ {0xfe, 0x00}, {0xf2, 0x0f}, {REG_NULL, 0x0}, }; static struct regval gc2155_800x600_15fps[] = { //SENSORDB("GC2155_Sensor_SVGA"}, {0xfe, 0x00}, {0xb6, 0x01}, {0xfd, 0x01}, {0xfa, 0x00}, /*crop window*/ {0xfe, 0x00}, {0x90, 0x01}, {0x91, 0x00}, {0x92, 0x00}, {0x93, 0x00}, {0x94, 0x00}, {0x95, 0x02}, {0x96, 0x58}, {0x97, 0x03}, {0x98, 0x20}, {0x99, 0x11}, {0x9a, 0x06}, /*AWB*/ {0xfe, 0x00}, {0xec, 0x01}, {0xed, 0x02}, {0xee, 0x30}, {0xef, 0x48}, {0xfe, 0x01}, {0x74, 0x00}, /* AEC */ {0xfe, 0x01}, {0x01, 0x04}, {0x02, 0x60}, {0x03, 0x02}, {0x04, 0x48}, {0x05, 0x18}, {0x06, 0x4c}, {0x07, 0x14}, {0x08, 0x36}, {0x0a, 0xc0}, {0x21, 0x14}, {0xfe, 0x00}, /* gamma */ {0xfe, 0x00}, {0xc3, 0x11}, {0xc4, 0x20}, {0xc5, 0x30}, {0xfe, 0x00}, {REG_NULL, 0x0}, }; static struct regval gc2155_1600x1200_7fps[] = { //SENSORDB("GC2155_Sensor_2M"}, {0xfe, 0x00}, {0xb6, 0x00}, {0xfa, 0x11}, {0xfd, 0x00}, /* crop window */ {0xfe, 0x00}, {0x90, 0x01}, {0x91, 0x00}, {0x92, 0x00}, {0x93, 0x00}, {0x94, 0x00}, {0x95, 0x04}, {0x96, 0xb0}, {0x97, 0x06}, {0x98, 0x40}, {0x99, 0x11}, {0x9a, 0x06}, /*AWB*/ {0xfe, 0x00}, {0xec, 0x02}, {0xed, 0x04}, {0xee, 0x60}, {0xef, 0x90}, {0xfe, 0x01}, {0x74, 0x01}, /* AEC */ {0xfe, 0x01}, {0x01, 0x08}, {0x02, 0xc0}, {0x03, 0x04}, {0x04, 0x90}, {0x05, 0x30}, {0x06, 0x98}, {0x07, 0x28}, {0x08, 0x6c}, {0x0a, 0xc2}, {0x21, 0x15}, //if 0xfa=11,then 0x21=15;else if 0xfa=00,then 0x21=14 {0xfe, 0x00}, /* gamma */ {0xfe, 0x00}, {0xc3, 0x00}, //if shutter/2 when capture,then exp_gamma_th/2 {0xc4, 0x90}, {0xc5, 0x98}, {0xfe, 0x00}, {REG_NULL, 0x0}, }; static const struct gc2155_mode supported_modes[] = { { .width = 800, .height = 600, .fps = 15, .max_fps = { .numerator = 10000, .denominator = 150000, }, .reg_list = gc2155_800x600_15fps, }, { .width = 1600, .height = 1200, .fps = 7, .max_fps = { .numerator = 10000, .denominator = 70000, }, .reg_list = gc2155_1600x1200_7fps, }, }; static int gc2155_write_reg(struct i2c_client *client, u8 reg, u8 val) { int ret; ret = i2c_smbus_write_byte_data(client, reg, val); if (ret < 0) dev_err(&client->dev, "write reg error: %d\n", ret); return ret; } static int gc2155_write_array(struct i2c_client *client, const struct regval *regs) { int i, ret = 0; for (i = 0; ret == 0 && regs[i].addr != REG_NULL; i++) ret = gc2155_write_reg(client, regs[i].addr, regs[i].val); return ret; } static inline u8 gc2155_read_reg(struct i2c_client *client, u8 reg) { return i2c_smbus_read_byte_data(client, reg); } static int gc2155_get_reso_dist(const struct gc2155_mode *mode, struct v4l2_mbus_framefmt *framefmt) { return abs(mode->width - framefmt->width) + abs(mode->height - framefmt->height); } static const struct gc2155_mode * gc2155_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; int i; for (i = 0; i < ARRAY_SIZE(supported_modes); i++) { dist = gc2155_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]; } #ifdef GC2155_EXPOSURE_CONTROL /* * the function is called before sensor register setting in VIDIOC_S_FMT */ /* Row times = Hb + Sh_delay + win_width + 4*/ static int gc2155_aec_ctrl(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt *mf) { struct i2c_client *client = v4l2_get_subdevdata(sd); int ret = 0; u8 value; static unsigned int capture_fps = 75, capture_lines = 1266; static unsigned int preview_fps = 150, preview_lines = 1266; static unsigned int lines_10ms = 1; static unsigned int shutter_h = 0x04, shutter_l = 0xe2; static unsigned int cap = 0, shutter = 0x04e2; dev_info(&client->dev, "%s enter\n", __func__); if ((mf->width == 800 && mf->height == 600) && cap == 1) { cap = 0; ret = gc2155_write_reg(client, 0xfe, 0x00); ret |= gc2155_write_reg(client, 0xb6, 0x00); ret |= gc2155_write_reg(client, 0x03, shutter_h); ret |= gc2155_write_reg(client, 0x04, shutter_l); ret |= gc2155_write_reg(client, 0x82, 0xfa); ret |= gc2155_write_reg(client, 0xb6, 0x01); if (ret) dev_err(&client->dev, "gc2155 reconfig failed!\n"); } if (mf->width == 1600 && mf->height == 1200) { cap = 1; ret = gc2155_write_reg(client, 0xfe, 0x00); ret |= gc2155_write_reg(client, 0xb6, 0x00); ret |= gc2155_write_reg(client, 0x82, 0xf8); /*shutter calculate*/ value = gc2155_read_reg(client, 0x03); shutter_h = value; shutter = (value << 8); value = gc2155_read_reg(client, 0x04); shutter_l = value; shutter |= (value & 0xff); dev_info(&client->dev, "%s(%d) 800x600 shutter read(0x%04x)!\n", __func__, __LINE__, shutter); shutter = shutter * capture_lines / preview_lines; shutter = shutter * capture_fps / preview_fps; lines_10ms = capture_fps * capture_lines / 100 / 10; if (shutter > lines_10ms) { shutter = shutter + lines_10ms / 2; shutter /= lines_10ms; shutter *= lines_10ms; } if (shutter < 1) shutter = 0x276; dev_info(&client->dev, "%s(%d)lines_10ms(%d),cal(0x%08x)!\n", __func__, __LINE__, lines_10ms, shutter); ret |= gc2155_write_reg(client, 0x03, ((shutter >> 8) & 0x1f)); ret |= gc2155_write_reg(client, 0x04, (shutter & 0xff)); if (ret) dev_err(&client->dev, "full exp reconfig failed!\n"); } return ret; } #endif static int gc2155_set_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct gc2155 *gc2155 = to_gc2155(sd); const struct gc2155_mode *mode; mutex_lock(&gc2155->mutex); mode = gc2155_find_best_fit(fmt); fmt->format.code = MEDIA_BUS_FMT_UYVY8_2X8; fmt->format.width = mode->width; fmt->format.height = mode->height; fmt->format.field = V4L2_FIELD_NONE; fmt->format.colorspace = V4L2_COLORSPACE_SRGB; 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(&gc2155->mutex); return -ENOTTY; #endif } else { gc2155->cur_mode = mode; gc2155->format = fmt->format; } #ifdef GC2155_EXPOSURE_CONTROL if (gc2155->power_on) gc2155_aec_ctrl(sd, &fmt->format); #endif mutex_unlock(&gc2155->mutex); return 0; } static int gc2155_get_fmt(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_format *fmt) { struct gc2155 *gc2155 = to_gc2155(sd); const struct gc2155_mode *mode = gc2155->cur_mode; mutex_lock(&gc2155->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(&gc2155->mutex); return -ENOTTY; #endif } else { fmt->format.width = mode->width; fmt->format.height = mode->height; fmt->format.code = MEDIA_BUS_FMT_UYVY8_2X8; fmt->format.field = V4L2_FIELD_NONE; fmt->format.colorspace = V4L2_COLORSPACE_SRGB; } mutex_unlock(&gc2155->mutex); return 0; } static void gc2155_get_default_format(struct gc2155 *gc2155, struct v4l2_mbus_framefmt *format) { format->width = gc2155->cur_mode->width; format->height = gc2155->cur_mode->height; format->colorspace = V4L2_COLORSPACE_SRGB; format->code = MEDIA_BUS_FMT_UYVY8_2X8; format->field = V4L2_FIELD_NONE; } static int gc2155_enum_mbus_code(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_mbus_code_enum *code) { if (code->index >= ARRAY_SIZE(supported_modes)) return -EINVAL; code->code = MEDIA_BUS_FMT_UYVY8_2X8; return 0; } static int gc2155_enum_frame_sizes(struct v4l2_subdev *sd, struct v4l2_subdev_state *sd_state, struct v4l2_subdev_frame_size_enum *fse) { u32 index = fse->index; if (index >= ARRAY_SIZE(supported_modes)) return -EINVAL; fse->code = MEDIA_BUS_FMT_UYVY8_2X8; fse->min_width = supported_modes[index].width; fse->max_width = supported_modes[index].width; fse->max_height = supported_modes[index].height; fse->min_height = supported_modes[index].height; return 0; } static int __gc2155_power_on(struct gc2155 *gc2155) { int ret; struct device *dev = &gc2155->client->dev; dev_info(dev, "%s(%d)\n", __func__, __LINE__); if (!IS_ERR(gc2155->power_gpio)) { gpiod_set_value_cansleep(gc2155->power_gpio, 1); usleep_range(2000, 5000); } if (!IS_ERR(gc2155->reset_gpio)) { gpiod_set_value_cansleep(gc2155->reset_gpio, 0); usleep_range(2000, 5000); } ret = regulator_bulk_enable(GC2155_NUM_SUPPLIES, gc2155->supplies); if (ret < 0) { dev_err(dev, "Failed to enable regulators\n"); return ret; } ret = clk_set_rate(gc2155->xvclk, GC2155_XVCLK_FREQ); if (ret < 0) dev_warn(dev, "Failed to set xvclk rate (24MHz)\n"); if (clk_get_rate(gc2155->xvclk) != GC2155_XVCLK_FREQ) dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n"); ret = clk_prepare_enable(gc2155->xvclk); if (ret < 0) { dev_err(dev, "Failed to enable xvclk\n"); return ret; } if (!IS_ERR(gc2155->pwdn_gpio)) { gpiod_set_value_cansleep(gc2155->pwdn_gpio, 0); usleep_range(2000, 5000); } if (!IS_ERR(gc2155->reset_gpio)) gpiod_set_value_cansleep(gc2155->reset_gpio, 1); usleep_range(7000, 10000); gc2155->power_on = true; return 0; } static void __gc2155_power_off(struct gc2155 *gc2155) { if (!IS_ERR(gc2155->reset_gpio)) gpiod_set_value_cansleep(gc2155->reset_gpio, 0); if (!IS_ERR(gc2155->pwdn_gpio)) gpiod_set_value_cansleep(gc2155->pwdn_gpio, 1); if (!IS_ERR(gc2155->xvclk)) clk_disable_unprepare(gc2155->xvclk); if (!IS_ERR(gc2155->power_gpio)) gpiod_set_value_cansleep(gc2155->power_gpio, 0); regulator_bulk_disable(GC2155_NUM_SUPPLIES, gc2155->supplies); gc2155->power_on = false; } static void gc2155_get_module_inf(struct gc2155 *gc2155, struct rkmodule_inf *inf) { memset(inf, 0, sizeof(*inf)); strlcpy(inf->base.sensor, GC2155_NAME, sizeof(inf->base.sensor)); strlcpy(inf->base.module, gc2155->module_name, sizeof(inf->base.module)); strlcpy(inf->base.lens, gc2155->len_name, sizeof(inf->base.lens)); } static long gc2155_ioctl(struct v4l2_subdev *sd, unsigned int cmd, void *arg) { struct gc2155 *gc2155 = to_gc2155(sd); long ret = 0; switch (cmd) { case RKMODULE_GET_MODULE_INFO: gc2155_get_module_inf(gc2155, (struct rkmodule_inf *)arg); break; default: ret = -ENOIOCTLCMD; break; } return ret; } #ifdef CONFIG_COMPAT static long gc2155_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; switch (cmd) { case RKMODULE_GET_MODULE_INFO: inf = kzalloc(sizeof(*inf), GFP_KERNEL); if (!inf) { ret = -ENOMEM; return ret; } ret = gc2155_ioctl(sd, cmd, inf); if (!ret) ret = copy_to_user(up, inf, sizeof(*inf)); 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 = gc2155_ioctl(sd, cmd, cfg); kfree(cfg); break; default: ret = -ENOIOCTLCMD; break; } return ret; } #endif static int gc2155_s_stream(struct v4l2_subdev *sd, int on) { struct gc2155 *gc2155 = to_gc2155(sd); struct i2c_client *client = gc2155->client; int ret = 0; u8 val; unsigned int fps; int delay_us; fps = DIV_ROUND_CLOSEST(gc2155->cur_mode->max_fps.denominator, gc2155->cur_mode->max_fps.numerator); dev_info(&client->dev, "%s: on: %d, %dx%d@%d\n", __func__, on, gc2155->cur_mode->width, gc2155->cur_mode->height, fps); mutex_lock(&gc2155->mutex); on = !!on; if (on == gc2155->streaming) goto unlock_and_return; if (on) { ret = pm_runtime_get_sync(&gc2155->client->dev); if (ret < 0) { pm_runtime_put_noidle(&client->dev); goto unlock_and_return; } ret = gc2155_write_array(gc2155->client, gc2155->cur_mode->reg_list); if (ret) { pm_runtime_put(&client->dev); goto unlock_and_return; } } else { pm_runtime_put(&client->dev); } val = on ? 0x0f : 0; ret = gc2155_write_reg(client, 0xf2, val); gc2155->streaming = on; /* delay to enable oneframe complete */ if (!on) { delay_us = 1000 * 1000 / fps; usleep_range(delay_us, delay_us + 10); dev_info(&client->dev, "%s: on: %d, sleep(%dus)\n", __func__, on, delay_us); } unlock_and_return: mutex_unlock(&gc2155->mutex); return ret; } static int gc2155_s_power(struct v4l2_subdev *sd, int on) { struct gc2155 *gc2155 = to_gc2155(sd); struct i2c_client *client = gc2155->client; int ret = 0; mutex_lock(&gc2155->mutex); /* If the power state is not modified - no work to do. */ if (gc2155->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 = gc2155_write_array(gc2155->client, gc2155_global_regs); if (ret) { v4l2_err(sd, "could not set init registers\n"); pm_runtime_put_noidle(&client->dev); goto unlock_and_return; } gc2155->power_on = true; } else { pm_runtime_put(&client->dev); gc2155->power_on = false; } unlock_and_return: mutex_unlock(&gc2155->mutex); return ret; } static int gc2155_set_test_pattern(struct gc2155 *gc2155, int value) { return 0; } static int gc2155_s_ctrl(struct v4l2_ctrl *ctrl) { struct gc2155 *gc2155 = container_of(ctrl->handler, struct gc2155, ctrls); switch (ctrl->id) { case V4L2_CID_TEST_PATTERN: return gc2155_set_test_pattern(gc2155, ctrl->val); } return 0; } static const struct v4l2_ctrl_ops gc2155_ctrl_ops = { .s_ctrl = gc2155_s_ctrl, }; static const char * const gc2155_test_pattern_menu[] = { "Disabled", "Vertical Color Bars", }; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static int gc2155_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh) { struct gc2155 *gc2155 = to_gc2155(sd); struct v4l2_mbus_framefmt *try_fmt = v4l2_subdev_get_try_format(sd, fh->state, 0); const struct gc2155_mode *def_mode = &supported_modes[0]; mutex_lock(&gc2155->mutex); try_fmt->width = def_mode->width; try_fmt->height = def_mode->height; try_fmt->code = MEDIA_BUS_FMT_UYVY8_2X8; try_fmt->field = V4L2_FIELD_NONE; try_fmt->colorspace = V4L2_COLORSPACE_SRGB; mutex_unlock(&gc2155->mutex); return 0; } #endif static int gc2155_runtime_resume(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); struct gc2155 *gc2155 = to_gc2155(sd); return __gc2155_power_on(gc2155); } static int gc2155_runtime_suspend(struct device *dev) { struct i2c_client *client = to_i2c_client(dev); struct v4l2_subdev *sd = i2c_get_clientdata(client); struct gc2155 *gc2155 = to_gc2155(sd); __gc2155_power_off(gc2155); return 0; } static int gc2155_g_mbus_config(struct v4l2_subdev *sd, unsigned int pad, struct v4l2_mbus_config *config) { config->type = V4L2_MBUS_PARALLEL; config->bus.parallel.flags = V4L2_MBUS_HSYNC_ACTIVE_HIGH | V4L2_MBUS_VSYNC_ACTIVE_LOW | V4L2_MBUS_PCLK_SAMPLE_RISING; return 0; } static int gc2155_g_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_frame_interval *fi) { struct gc2155 *gc2155 = to_gc2155(sd); fi->interval = gc2155->cur_mode->max_fps; return 0; } static void __gc2155_try_frame_size_fps(struct gc2155 *gc2155, struct v4l2_mbus_framefmt *mf, const struct gc2155_mode **size, unsigned int fps) { const struct gc2155_mode *fsize = &gc2155->framesize_cfg[0]; const struct gc2155_mode *match = NULL; unsigned int i = gc2155->cfg_num; unsigned int min_err = UINT_MAX; while (i--) { unsigned int err = abs(fsize->width - mf->width) + abs(fsize->height - mf->height); if (err < min_err && fsize->reg_list[0].addr) { min_err = err; match = fsize; } fsize++; } if (!match) { match = &gc2155->framesize_cfg[0]; } else { fsize = &gc2155->framesize_cfg[0]; for (i = 0; i < gc2155->cfg_num; i++) { if (fsize->width == match->width && fsize->height == match->height && fps >= fsize->fps) match = fsize; fsize++; } } mf->width = match->width; mf->height = match->height; if (size) *size = match; } static int gc2155_s_frame_interval(struct v4l2_subdev *sd, struct v4l2_subdev_frame_interval *fi) { struct i2c_client *client = v4l2_get_subdevdata(sd); struct gc2155 *gc2155 = to_gc2155(sd); const struct gc2155_mode *mode = NULL; struct v4l2_mbus_framefmt mf; unsigned int fps; int ret = 0; dev_dbg(&client->dev, "Setting %d/%d frame interval\n", fi->interval.numerator, fi->interval.denominator); mutex_lock(&gc2155->mutex); if (gc2155->cur_mode->width == 1600) goto unlock; fps = DIV_ROUND_CLOSEST(fi->interval.denominator, fi->interval.numerator); mf = gc2155->format; __gc2155_try_frame_size_fps(gc2155, &mf, &mode, fps); if (gc2155->cur_mode != mode) { ret = gc2155_write_array(client, mode->reg_list); if (ret) goto unlock; gc2155->cur_mode = mode; gc2155->fps = fps; } unlock: mutex_unlock(&gc2155->mutex); return ret; } static int gc2155_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 = MEDIA_BUS_FMT_UYVY8_2X8; 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 const struct dev_pm_ops gc2155_pm_ops = { SET_RUNTIME_PM_OPS(gc2155_runtime_suspend, gc2155_runtime_resume, NULL) }; static const struct v4l2_subdev_core_ops gc2155_core_ops = { .log_status = v4l2_ctrl_subdev_log_status, .subscribe_event = v4l2_ctrl_subdev_subscribe_event, .unsubscribe_event = v4l2_event_subdev_unsubscribe, .ioctl = gc2155_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl32 = gc2155_compat_ioctl32, #endif .s_power = gc2155_s_power, }; static const struct v4l2_subdev_video_ops gc2155_video_ops = { .s_stream = gc2155_s_stream, .g_frame_interval = gc2155_g_frame_interval, .s_frame_interval = gc2155_s_frame_interval, }; static const struct v4l2_subdev_pad_ops gc2155_pad_ops = { .enum_mbus_code = gc2155_enum_mbus_code, .enum_frame_size = gc2155_enum_frame_sizes, .enum_frame_interval = gc2155_enum_frame_interval, .get_fmt = gc2155_get_fmt, .set_fmt = gc2155_set_fmt, .get_mbus_config = gc2155_g_mbus_config, }; static const struct v4l2_subdev_ops gc2155_subdev_ops = { .core = &gc2155_core_ops, .video = &gc2155_video_ops, .pad = &gc2155_pad_ops, }; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API static const struct v4l2_subdev_internal_ops gc2155_internal_ops = { .open = gc2155_open, }; #endif static int gc2155_check_sensor_id(struct gc2155 *gc2155, struct i2c_client *client) { struct device *dev = &gc2155->client->dev; u8 id_h, id_l; id_h = gc2155_read_reg(client, REG_CHIP_ID_H); id_l = gc2155_read_reg(client, REG_CHIP_ID_L); if (id_h != CHIP_ID_H && id_l != CHIP_ID_L) { dev_err(dev, "Wrong camera sensor id(0x%02x%02x)\n", id_h, id_l); return -EINVAL; } dev_info(dev, "Detected GC2155 (0x%02x%02x) sensor\n", CHIP_ID_H, CHIP_ID_L); return 0; } static int gc2155_configure_regulators(struct gc2155 *gc2155) { u32 i; for (i = 0; i < GC2155_NUM_SUPPLIES; i++) gc2155->supplies[i].supply = gc2155_supply_names[i]; return devm_regulator_bulk_get(&gc2155->client->dev, GC2155_NUM_SUPPLIES, gc2155->supplies); } static int gc2155_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; struct device_node *node = dev->of_node; struct gc2155 *gc2155; 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); gc2155 = devm_kzalloc(dev, sizeof(*gc2155), GFP_KERNEL); if (!gc2155) return -ENOMEM; ret = of_property_read_u32(node, RKMODULE_CAMERA_MODULE_INDEX, &gc2155->module_index); ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_FACING, &gc2155->module_facing); ret |= of_property_read_string(node, RKMODULE_CAMERA_MODULE_NAME, &gc2155->module_name); ret |= of_property_read_string(node, RKMODULE_CAMERA_LENS_NAME, &gc2155->len_name); if (ret) { dev_err(dev, "could not get module information!\n"); return -EINVAL; } gc2155->client = client; gc2155->cur_mode = &supported_modes[0]; gc2155_get_default_format(gc2155, &gc2155->format); gc2155->format.width = gc2155->cur_mode->width; gc2155->format.height = gc2155->cur_mode->height; gc2155->fps = DIV_ROUND_CLOSEST(gc2155->cur_mode->max_fps.denominator, gc2155->cur_mode->max_fps.numerator); gc2155->framesize_cfg = supported_modes; gc2155->cfg_num = ARRAY_SIZE(supported_modes); gc2155->xvclk = devm_clk_get(dev, "xvclk"); if (IS_ERR(gc2155->xvclk)) { dev_err(dev, "Failed to get xvclk\n"); return -EINVAL; } gc2155->power_gpio = devm_gpiod_get(dev, "power", GPIOD_OUT_LOW); if (IS_ERR(gc2155->power_gpio)) dev_info(dev, "Failed to get power-gpios, maybe no use\n"); gc2155->reset_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW); if (IS_ERR(gc2155->reset_gpio)) dev_warn(dev, "Failed to get reset-gpios\n"); gc2155->pwdn_gpio = devm_gpiod_get(dev, "pwdn", GPIOD_OUT_LOW); if (IS_ERR(gc2155->pwdn_gpio)) dev_warn(dev, "Failed to get gc2155-gpios\n"); ret = gc2155_configure_regulators(gc2155); if (ret) { dev_warn(dev, "Failed to get power regulators\n"); return ret; } v4l2_ctrl_handler_init(&gc2155->ctrls, 2); gc2155->pixel_rate = v4l2_ctrl_new_std(&gc2155->ctrls, &gc2155_ctrl_ops, V4L2_CID_PIXEL_RATE, 0, GC2155_PIXEL_RATE, 1, GC2155_PIXEL_RATE); v4l2_ctrl_new_std_menu_items(&gc2155->ctrls, &gc2155_ctrl_ops, V4L2_CID_TEST_PATTERN, ARRAY_SIZE(gc2155_test_pattern_menu) - 1, 0, 0, gc2155_test_pattern_menu); gc2155->subdev.ctrl_handler = &gc2155->ctrls; if (gc2155->ctrls.error) { dev_err(&client->dev, "%s: control initialization error %d\n", __func__, gc2155->ctrls.error); return gc2155->ctrls.error; } mutex_init(&gc2155->mutex); v4l2_i2c_subdev_init(&gc2155->subdev, client, &gc2155_subdev_ops); ret = __gc2155_power_on(gc2155); if (ret) goto err_destroy_mutex; ret = gc2155_check_sensor_id(gc2155, client); if (ret) goto err_power_off; #ifdef CONFIG_VIDEO_V4L2_SUBDEV_API gc2155->subdev.internal_ops = &gc2155_internal_ops; gc2155->subdev.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; #endif #if defined(CONFIG_MEDIA_CONTROLLER) gc2155->pad.flags = MEDIA_PAD_FL_SOURCE; gc2155->subdev.entity.function = MEDIA_ENT_F_CAM_SENSOR; ret = media_entity_pads_init(&gc2155->subdev.entity, 1, &gc2155->pad); if (ret < 0) goto err_power_off; #endif sd = &gc2155->subdev; memset(facing, 0, sizeof(facing)); if (strcmp(gc2155->module_facing, "back") == 0) facing[0] = 'b'; else facing[0] = 'f'; snprintf(sd->name, sizeof(sd->name), "m%02d_%s_%s %s", gc2155->module_index, facing, GC2155_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(&gc2155->subdev.entity); #endif err_power_off: __gc2155_power_off(gc2155); err_destroy_mutex: mutex_destroy(&gc2155->mutex); v4l2_ctrl_handler_free(&gc2155->ctrls); return ret; } static void gc2155_remove(struct i2c_client *client) { struct v4l2_subdev *sd = i2c_get_clientdata(client); struct gc2155 *gc2155 = to_gc2155(sd); v4l2_async_unregister_subdev(sd); #if defined(CONFIG_MEDIA_CONTROLLER) media_entity_cleanup(&sd->entity); #endif mutex_destroy(&gc2155->mutex); pm_runtime_disable(&client->dev); if (!pm_runtime_status_suspended(&client->dev)) __gc2155_power_off(gc2155); pm_runtime_set_suspended(&client->dev); } #if IS_ENABLED(CONFIG_OF) static const struct of_device_id gc2155_of_match[] = { { .compatible = "galaxycore,gc2155" }, {}, }; MODULE_DEVICE_TABLE(of, gc2155_of_match); #endif static const struct i2c_device_id gc2155_match_id[] = { {"gc2155", 0}, {}, }; static struct i2c_driver gc2155_i2c_driver = { .driver = { .name = GC2155_NAME, .pm = &gc2155_pm_ops, .of_match_table = of_match_ptr(gc2155_of_match), }, .probe = gc2155_probe, .remove = gc2155_remove, .id_table = gc2155_match_id, }; static int __init sensor_mod_init(void) { return i2c_add_driver(&gc2155_i2c_driver); } static void __exit sensor_mod_exit(void) { i2c_del_driver(&gc2155_i2c_driver); } device_initcall_sync(sensor_mod_init); module_exit(sensor_mod_exit); MODULE_DESCRIPTION("GalaxyCore gc2155 sensor driver"); MODULE_LICENSE("GPL v2");