1*45d19b5fSMartina Krasteva // SPDX-License-Identifier: GPL-2.0-only 2*45d19b5fSMartina Krasteva /* 3*45d19b5fSMartina Krasteva * Sony imx335 Camera Sensor Driver 4*45d19b5fSMartina Krasteva * 5*45d19b5fSMartina Krasteva * Copyright (C) 2021 Intel Corporation 6*45d19b5fSMartina Krasteva */ 7*45d19b5fSMartina Krasteva #include <asm/unaligned.h> 8*45d19b5fSMartina Krasteva 9*45d19b5fSMartina Krasteva #include <linux/clk.h> 10*45d19b5fSMartina Krasteva #include <linux/delay.h> 11*45d19b5fSMartina Krasteva #include <linux/i2c.h> 12*45d19b5fSMartina Krasteva #include <linux/module.h> 13*45d19b5fSMartina Krasteva #include <linux/pm_runtime.h> 14*45d19b5fSMartina Krasteva 15*45d19b5fSMartina Krasteva #include <media/v4l2-ctrls.h> 16*45d19b5fSMartina Krasteva #include <media/v4l2-fwnode.h> 17*45d19b5fSMartina Krasteva #include <media/v4l2-subdev.h> 18*45d19b5fSMartina Krasteva 19*45d19b5fSMartina Krasteva /* Streaming Mode */ 20*45d19b5fSMartina Krasteva #define IMX335_REG_MODE_SELECT 0x3000 21*45d19b5fSMartina Krasteva #define IMX335_MODE_STANDBY 0x01 22*45d19b5fSMartina Krasteva #define IMX335_MODE_STREAMING 0x00 23*45d19b5fSMartina Krasteva 24*45d19b5fSMartina Krasteva /* Lines per frame */ 25*45d19b5fSMartina Krasteva #define IMX335_REG_LPFR 0x3030 26*45d19b5fSMartina Krasteva 27*45d19b5fSMartina Krasteva /* Chip ID */ 28*45d19b5fSMartina Krasteva #define IMX335_REG_ID 0x3912 29*45d19b5fSMartina Krasteva #define IMX335_ID 0x00 30*45d19b5fSMartina Krasteva 31*45d19b5fSMartina Krasteva /* Exposure control */ 32*45d19b5fSMartina Krasteva #define IMX335_REG_SHUTTER 0x3058 33*45d19b5fSMartina Krasteva #define IMX335_EXPOSURE_MIN 1 34*45d19b5fSMartina Krasteva #define IMX335_EXPOSURE_OFFSET 9 35*45d19b5fSMartina Krasteva #define IMX335_EXPOSURE_STEP 1 36*45d19b5fSMartina Krasteva #define IMX335_EXPOSURE_DEFAULT 0x0648 37*45d19b5fSMartina Krasteva 38*45d19b5fSMartina Krasteva /* Analog gain control */ 39*45d19b5fSMartina Krasteva #define IMX335_REG_AGAIN 0x30e8 40*45d19b5fSMartina Krasteva #define IMX335_AGAIN_MIN 0 41*45d19b5fSMartina Krasteva #define IMX335_AGAIN_MAX 240 42*45d19b5fSMartina Krasteva #define IMX335_AGAIN_STEP 1 43*45d19b5fSMartina Krasteva #define IMX335_AGAIN_DEFAULT 0 44*45d19b5fSMartina Krasteva 45*45d19b5fSMartina Krasteva /* Group hold register */ 46*45d19b5fSMartina Krasteva #define IMX335_REG_HOLD 0x3001 47*45d19b5fSMartina Krasteva 48*45d19b5fSMartina Krasteva /* Input clock rate */ 49*45d19b5fSMartina Krasteva #define IMX335_INCLK_RATE 24000000 50*45d19b5fSMartina Krasteva 51*45d19b5fSMartina Krasteva /* CSI2 HW configuration */ 52*45d19b5fSMartina Krasteva #define IMX335_LINK_FREQ 594000000 53*45d19b5fSMartina Krasteva #define IMX335_NUM_DATA_LANES 4 54*45d19b5fSMartina Krasteva 55*45d19b5fSMartina Krasteva #define IMX335_REG_MIN 0x00 56*45d19b5fSMartina Krasteva #define IMX335_REG_MAX 0xfffff 57*45d19b5fSMartina Krasteva 58*45d19b5fSMartina Krasteva /** 59*45d19b5fSMartina Krasteva * struct imx335_reg - imx335 sensor register 60*45d19b5fSMartina Krasteva * @address: Register address 61*45d19b5fSMartina Krasteva * @val: Register value 62*45d19b5fSMartina Krasteva */ 63*45d19b5fSMartina Krasteva struct imx335_reg { 64*45d19b5fSMartina Krasteva u16 address; 65*45d19b5fSMartina Krasteva u8 val; 66*45d19b5fSMartina Krasteva }; 67*45d19b5fSMartina Krasteva 68*45d19b5fSMartina Krasteva /** 69*45d19b5fSMartina Krasteva * struct imx335_reg_list - imx335 sensor register list 70*45d19b5fSMartina Krasteva * @num_of_regs: Number of registers in the list 71*45d19b5fSMartina Krasteva * @regs: Pointer to register list 72*45d19b5fSMartina Krasteva */ 73*45d19b5fSMartina Krasteva struct imx335_reg_list { 74*45d19b5fSMartina Krasteva u32 num_of_regs; 75*45d19b5fSMartina Krasteva const struct imx335_reg *regs; 76*45d19b5fSMartina Krasteva }; 77*45d19b5fSMartina Krasteva 78*45d19b5fSMartina Krasteva /** 79*45d19b5fSMartina Krasteva * struct imx335_mode - imx335 sensor mode structure 80*45d19b5fSMartina Krasteva * @width: Frame width 81*45d19b5fSMartina Krasteva * @height: Frame height 82*45d19b5fSMartina Krasteva * @code: Format code 83*45d19b5fSMartina Krasteva * @hblank: Horizontal blanking in lines 84*45d19b5fSMartina Krasteva * @vblank: Vertical blanking in lines 85*45d19b5fSMartina Krasteva * @vblank_min: Minimum vertical blanking in lines 86*45d19b5fSMartina Krasteva * @vblank_max: Maximum vertical blanking in lines 87*45d19b5fSMartina Krasteva * @pclk: Sensor pixel clock 88*45d19b5fSMartina Krasteva * @link_freq_idx: Link frequency index 89*45d19b5fSMartina Krasteva * @reg_list: Register list for sensor mode 90*45d19b5fSMartina Krasteva */ 91*45d19b5fSMartina Krasteva struct imx335_mode { 92*45d19b5fSMartina Krasteva u32 width; 93*45d19b5fSMartina Krasteva u32 height; 94*45d19b5fSMartina Krasteva u32 code; 95*45d19b5fSMartina Krasteva u32 hblank; 96*45d19b5fSMartina Krasteva u32 vblank; 97*45d19b5fSMartina Krasteva u32 vblank_min; 98*45d19b5fSMartina Krasteva u32 vblank_max; 99*45d19b5fSMartina Krasteva u64 pclk; 100*45d19b5fSMartina Krasteva u32 link_freq_idx; 101*45d19b5fSMartina Krasteva struct imx335_reg_list reg_list; 102*45d19b5fSMartina Krasteva }; 103*45d19b5fSMartina Krasteva 104*45d19b5fSMartina Krasteva /** 105*45d19b5fSMartina Krasteva * struct imx335 - imx335 sensor device structure 106*45d19b5fSMartina Krasteva * @dev: Pointer to generic device 107*45d19b5fSMartina Krasteva * @client: Pointer to i2c client 108*45d19b5fSMartina Krasteva * @sd: V4L2 sub-device 109*45d19b5fSMartina Krasteva * @pad: Media pad. Only one pad supported 110*45d19b5fSMartina Krasteva * @reset_gpio: Sensor reset gpio 111*45d19b5fSMartina Krasteva * @inclk: Sensor input clock 112*45d19b5fSMartina Krasteva * @ctrl_handler: V4L2 control handler 113*45d19b5fSMartina Krasteva * @link_freq_ctrl: Pointer to link frequency control 114*45d19b5fSMartina Krasteva * @pclk_ctrl: Pointer to pixel clock control 115*45d19b5fSMartina Krasteva * @hblank_ctrl: Pointer to horizontal blanking control 116*45d19b5fSMartina Krasteva * @vblank_ctrl: Pointer to vertical blanking control 117*45d19b5fSMartina Krasteva * @exp_ctrl: Pointer to exposure control 118*45d19b5fSMartina Krasteva * @again_ctrl: Pointer to analog gain control 119*45d19b5fSMartina Krasteva * @vblank: Vertical blanking in lines 120*45d19b5fSMartina Krasteva * @cur_mode: Pointer to current selected sensor mode 121*45d19b5fSMartina Krasteva * @mutex: Mutex for serializing sensor controls 122*45d19b5fSMartina Krasteva * @streaming: Flag indicating streaming state 123*45d19b5fSMartina Krasteva */ 124*45d19b5fSMartina Krasteva struct imx335 { 125*45d19b5fSMartina Krasteva struct device *dev; 126*45d19b5fSMartina Krasteva struct i2c_client *client; 127*45d19b5fSMartina Krasteva struct v4l2_subdev sd; 128*45d19b5fSMartina Krasteva struct media_pad pad; 129*45d19b5fSMartina Krasteva struct gpio_desc *reset_gpio; 130*45d19b5fSMartina Krasteva struct clk *inclk; 131*45d19b5fSMartina Krasteva struct v4l2_ctrl_handler ctrl_handler; 132*45d19b5fSMartina Krasteva struct v4l2_ctrl *link_freq_ctrl; 133*45d19b5fSMartina Krasteva struct v4l2_ctrl *pclk_ctrl; 134*45d19b5fSMartina Krasteva struct v4l2_ctrl *hblank_ctrl; 135*45d19b5fSMartina Krasteva struct v4l2_ctrl *vblank_ctrl; 136*45d19b5fSMartina Krasteva struct { 137*45d19b5fSMartina Krasteva struct v4l2_ctrl *exp_ctrl; 138*45d19b5fSMartina Krasteva struct v4l2_ctrl *again_ctrl; 139*45d19b5fSMartina Krasteva }; 140*45d19b5fSMartina Krasteva u32 vblank; 141*45d19b5fSMartina Krasteva const struct imx335_mode *cur_mode; 142*45d19b5fSMartina Krasteva struct mutex mutex; 143*45d19b5fSMartina Krasteva bool streaming; 144*45d19b5fSMartina Krasteva }; 145*45d19b5fSMartina Krasteva 146*45d19b5fSMartina Krasteva static const s64 link_freq[] = { 147*45d19b5fSMartina Krasteva IMX335_LINK_FREQ, 148*45d19b5fSMartina Krasteva }; 149*45d19b5fSMartina Krasteva 150*45d19b5fSMartina Krasteva /* Sensor mode registers */ 151*45d19b5fSMartina Krasteva static const struct imx335_reg mode_2592x1940_regs[] = { 152*45d19b5fSMartina Krasteva {0x3000, 0x01}, 153*45d19b5fSMartina Krasteva {0x3002, 0x00}, 154*45d19b5fSMartina Krasteva {0x300c, 0x3b}, 155*45d19b5fSMartina Krasteva {0x300d, 0x2a}, 156*45d19b5fSMartina Krasteva {0x3018, 0x04}, 157*45d19b5fSMartina Krasteva {0x302c, 0x3c}, 158*45d19b5fSMartina Krasteva {0x302e, 0x20}, 159*45d19b5fSMartina Krasteva {0x3056, 0x94}, 160*45d19b5fSMartina Krasteva {0x3074, 0xc8}, 161*45d19b5fSMartina Krasteva {0x3076, 0x28}, 162*45d19b5fSMartina Krasteva {0x304c, 0x00}, 163*45d19b5fSMartina Krasteva {0x314c, 0xc6}, 164*45d19b5fSMartina Krasteva {0x315a, 0x02}, 165*45d19b5fSMartina Krasteva {0x3168, 0xa0}, 166*45d19b5fSMartina Krasteva {0x316a, 0x7e}, 167*45d19b5fSMartina Krasteva {0x31a1, 0x00}, 168*45d19b5fSMartina Krasteva {0x3288, 0x21}, 169*45d19b5fSMartina Krasteva {0x328a, 0x02}, 170*45d19b5fSMartina Krasteva {0x3414, 0x05}, 171*45d19b5fSMartina Krasteva {0x3416, 0x18}, 172*45d19b5fSMartina Krasteva {0x3648, 0x01}, 173*45d19b5fSMartina Krasteva {0x364a, 0x04}, 174*45d19b5fSMartina Krasteva {0x364c, 0x04}, 175*45d19b5fSMartina Krasteva {0x3678, 0x01}, 176*45d19b5fSMartina Krasteva {0x367c, 0x31}, 177*45d19b5fSMartina Krasteva {0x367e, 0x31}, 178*45d19b5fSMartina Krasteva {0x3706, 0x10}, 179*45d19b5fSMartina Krasteva {0x3708, 0x03}, 180*45d19b5fSMartina Krasteva {0x3714, 0x02}, 181*45d19b5fSMartina Krasteva {0x3715, 0x02}, 182*45d19b5fSMartina Krasteva {0x3716, 0x01}, 183*45d19b5fSMartina Krasteva {0x3717, 0x03}, 184*45d19b5fSMartina Krasteva {0x371c, 0x3d}, 185*45d19b5fSMartina Krasteva {0x371d, 0x3f}, 186*45d19b5fSMartina Krasteva {0x372c, 0x00}, 187*45d19b5fSMartina Krasteva {0x372d, 0x00}, 188*45d19b5fSMartina Krasteva {0x372e, 0x46}, 189*45d19b5fSMartina Krasteva {0x372f, 0x00}, 190*45d19b5fSMartina Krasteva {0x3730, 0x89}, 191*45d19b5fSMartina Krasteva {0x3731, 0x00}, 192*45d19b5fSMartina Krasteva {0x3732, 0x08}, 193*45d19b5fSMartina Krasteva {0x3733, 0x01}, 194*45d19b5fSMartina Krasteva {0x3734, 0xfe}, 195*45d19b5fSMartina Krasteva {0x3735, 0x05}, 196*45d19b5fSMartina Krasteva {0x3740, 0x02}, 197*45d19b5fSMartina Krasteva {0x375d, 0x00}, 198*45d19b5fSMartina Krasteva {0x375e, 0x00}, 199*45d19b5fSMartina Krasteva {0x375f, 0x11}, 200*45d19b5fSMartina Krasteva {0x3760, 0x01}, 201*45d19b5fSMartina Krasteva {0x3768, 0x1b}, 202*45d19b5fSMartina Krasteva {0x3769, 0x1b}, 203*45d19b5fSMartina Krasteva {0x376a, 0x1b}, 204*45d19b5fSMartina Krasteva {0x376b, 0x1b}, 205*45d19b5fSMartina Krasteva {0x376c, 0x1a}, 206*45d19b5fSMartina Krasteva {0x376d, 0x17}, 207*45d19b5fSMartina Krasteva {0x376e, 0x0f}, 208*45d19b5fSMartina Krasteva {0x3776, 0x00}, 209*45d19b5fSMartina Krasteva {0x3777, 0x00}, 210*45d19b5fSMartina Krasteva {0x3778, 0x46}, 211*45d19b5fSMartina Krasteva {0x3779, 0x00}, 212*45d19b5fSMartina Krasteva {0x377a, 0x89}, 213*45d19b5fSMartina Krasteva {0x377b, 0x00}, 214*45d19b5fSMartina Krasteva {0x377c, 0x08}, 215*45d19b5fSMartina Krasteva {0x377d, 0x01}, 216*45d19b5fSMartina Krasteva {0x377e, 0x23}, 217*45d19b5fSMartina Krasteva {0x377f, 0x02}, 218*45d19b5fSMartina Krasteva {0x3780, 0xd9}, 219*45d19b5fSMartina Krasteva {0x3781, 0x03}, 220*45d19b5fSMartina Krasteva {0x3782, 0xf5}, 221*45d19b5fSMartina Krasteva {0x3783, 0x06}, 222*45d19b5fSMartina Krasteva {0x3784, 0xa5}, 223*45d19b5fSMartina Krasteva {0x3788, 0x0f}, 224*45d19b5fSMartina Krasteva {0x378a, 0xd9}, 225*45d19b5fSMartina Krasteva {0x378b, 0x03}, 226*45d19b5fSMartina Krasteva {0x378c, 0xeb}, 227*45d19b5fSMartina Krasteva {0x378d, 0x05}, 228*45d19b5fSMartina Krasteva {0x378e, 0x87}, 229*45d19b5fSMartina Krasteva {0x378f, 0x06}, 230*45d19b5fSMartina Krasteva {0x3790, 0xf5}, 231*45d19b5fSMartina Krasteva {0x3792, 0x43}, 232*45d19b5fSMartina Krasteva {0x3794, 0x7a}, 233*45d19b5fSMartina Krasteva {0x3796, 0xa1}, 234*45d19b5fSMartina Krasteva {0x37b0, 0x36}, 235*45d19b5fSMartina Krasteva {0x3a00, 0x01}, 236*45d19b5fSMartina Krasteva }; 237*45d19b5fSMartina Krasteva 238*45d19b5fSMartina Krasteva /* Supported sensor mode configurations */ 239*45d19b5fSMartina Krasteva static const struct imx335_mode supported_mode = { 240*45d19b5fSMartina Krasteva .width = 2592, 241*45d19b5fSMartina Krasteva .height = 1940, 242*45d19b5fSMartina Krasteva .hblank = 342, 243*45d19b5fSMartina Krasteva .vblank = 2560, 244*45d19b5fSMartina Krasteva .vblank_min = 2560, 245*45d19b5fSMartina Krasteva .vblank_max = 133060, 246*45d19b5fSMartina Krasteva .pclk = 396000000, 247*45d19b5fSMartina Krasteva .link_freq_idx = 0, 248*45d19b5fSMartina Krasteva .code = MEDIA_BUS_FMT_SRGGB12_1X12, 249*45d19b5fSMartina Krasteva .reg_list = { 250*45d19b5fSMartina Krasteva .num_of_regs = ARRAY_SIZE(mode_2592x1940_regs), 251*45d19b5fSMartina Krasteva .regs = mode_2592x1940_regs, 252*45d19b5fSMartina Krasteva }, 253*45d19b5fSMartina Krasteva }; 254*45d19b5fSMartina Krasteva 255*45d19b5fSMartina Krasteva /** 256*45d19b5fSMartina Krasteva * to_imx335() - imx335 V4L2 sub-device to imx335 device. 257*45d19b5fSMartina Krasteva * @subdev: pointer to imx335 V4L2 sub-device 258*45d19b5fSMartina Krasteva * 259*45d19b5fSMartina Krasteva * Return: pointer to imx335 device 260*45d19b5fSMartina Krasteva */ 261*45d19b5fSMartina Krasteva static inline struct imx335 *to_imx335(struct v4l2_subdev *subdev) 262*45d19b5fSMartina Krasteva { 263*45d19b5fSMartina Krasteva return container_of(subdev, struct imx335, sd); 264*45d19b5fSMartina Krasteva } 265*45d19b5fSMartina Krasteva 266*45d19b5fSMartina Krasteva /** 267*45d19b5fSMartina Krasteva * imx335_read_reg() - Read registers. 268*45d19b5fSMartina Krasteva * @imx335: pointer to imx335 device 269*45d19b5fSMartina Krasteva * @reg: register address 270*45d19b5fSMartina Krasteva * @len: length of bytes to read. Max supported bytes is 4 271*45d19b5fSMartina Krasteva * @val: pointer to register value to be filled. 272*45d19b5fSMartina Krasteva * 273*45d19b5fSMartina Krasteva * Big endian register addresses with little endian values. 274*45d19b5fSMartina Krasteva * 275*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 276*45d19b5fSMartina Krasteva */ 277*45d19b5fSMartina Krasteva static int imx335_read_reg(struct imx335 *imx335, u16 reg, u32 len, u32 *val) 278*45d19b5fSMartina Krasteva { 279*45d19b5fSMartina Krasteva struct i2c_client *client = v4l2_get_subdevdata(&imx335->sd); 280*45d19b5fSMartina Krasteva struct i2c_msg msgs[2] = {0}; 281*45d19b5fSMartina Krasteva u8 addr_buf[2] = {0}; 282*45d19b5fSMartina Krasteva u8 data_buf[4] = {0}; 283*45d19b5fSMartina Krasteva int ret; 284*45d19b5fSMartina Krasteva 285*45d19b5fSMartina Krasteva if (WARN_ON(len > 4)) 286*45d19b5fSMartina Krasteva return -EINVAL; 287*45d19b5fSMartina Krasteva 288*45d19b5fSMartina Krasteva put_unaligned_be16(reg, addr_buf); 289*45d19b5fSMartina Krasteva 290*45d19b5fSMartina Krasteva /* Write register address */ 291*45d19b5fSMartina Krasteva msgs[0].addr = client->addr; 292*45d19b5fSMartina Krasteva msgs[0].flags = 0; 293*45d19b5fSMartina Krasteva msgs[0].len = ARRAY_SIZE(addr_buf); 294*45d19b5fSMartina Krasteva msgs[0].buf = addr_buf; 295*45d19b5fSMartina Krasteva 296*45d19b5fSMartina Krasteva /* Read data from register */ 297*45d19b5fSMartina Krasteva msgs[1].addr = client->addr; 298*45d19b5fSMartina Krasteva msgs[1].flags = I2C_M_RD; 299*45d19b5fSMartina Krasteva msgs[1].len = len; 300*45d19b5fSMartina Krasteva msgs[1].buf = data_buf; 301*45d19b5fSMartina Krasteva 302*45d19b5fSMartina Krasteva ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); 303*45d19b5fSMartina Krasteva if (ret != ARRAY_SIZE(msgs)) 304*45d19b5fSMartina Krasteva return -EIO; 305*45d19b5fSMartina Krasteva 306*45d19b5fSMartina Krasteva *val = get_unaligned_le32(data_buf); 307*45d19b5fSMartina Krasteva 308*45d19b5fSMartina Krasteva return 0; 309*45d19b5fSMartina Krasteva } 310*45d19b5fSMartina Krasteva 311*45d19b5fSMartina Krasteva /** 312*45d19b5fSMartina Krasteva * imx335_write_reg() - Write register 313*45d19b5fSMartina Krasteva * @imx335: pointer to imx335 device 314*45d19b5fSMartina Krasteva * @reg: register address 315*45d19b5fSMartina Krasteva * @len: length of bytes. Max supported bytes is 4 316*45d19b5fSMartina Krasteva * @val: register value 317*45d19b5fSMartina Krasteva * 318*45d19b5fSMartina Krasteva * Big endian register addresses with little endian values. 319*45d19b5fSMartina Krasteva * 320*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 321*45d19b5fSMartina Krasteva */ 322*45d19b5fSMartina Krasteva static int imx335_write_reg(struct imx335 *imx335, u16 reg, u32 len, u32 val) 323*45d19b5fSMartina Krasteva { 324*45d19b5fSMartina Krasteva struct i2c_client *client = v4l2_get_subdevdata(&imx335->sd); 325*45d19b5fSMartina Krasteva u8 buf[6] = {0}; 326*45d19b5fSMartina Krasteva 327*45d19b5fSMartina Krasteva if (WARN_ON(len > 4)) 328*45d19b5fSMartina Krasteva return -EINVAL; 329*45d19b5fSMartina Krasteva 330*45d19b5fSMartina Krasteva put_unaligned_be16(reg, buf); 331*45d19b5fSMartina Krasteva put_unaligned_le32(val, buf + 2); 332*45d19b5fSMartina Krasteva if (i2c_master_send(client, buf, len + 2) != len + 2) 333*45d19b5fSMartina Krasteva return -EIO; 334*45d19b5fSMartina Krasteva 335*45d19b5fSMartina Krasteva return 0; 336*45d19b5fSMartina Krasteva } 337*45d19b5fSMartina Krasteva 338*45d19b5fSMartina Krasteva /** 339*45d19b5fSMartina Krasteva * imx335_write_regs() - Write a list of registers 340*45d19b5fSMartina Krasteva * @imx335: pointer to imx335 device 341*45d19b5fSMartina Krasteva * @regs: list of registers to be written 342*45d19b5fSMartina Krasteva * @len: length of registers array 343*45d19b5fSMartina Krasteva * 344*45d19b5fSMartina Krasteva * Return: 0 if successful. error code otherwise. 345*45d19b5fSMartina Krasteva */ 346*45d19b5fSMartina Krasteva static int imx335_write_regs(struct imx335 *imx335, 347*45d19b5fSMartina Krasteva const struct imx335_reg *regs, u32 len) 348*45d19b5fSMartina Krasteva { 349*45d19b5fSMartina Krasteva unsigned int i; 350*45d19b5fSMartina Krasteva int ret; 351*45d19b5fSMartina Krasteva 352*45d19b5fSMartina Krasteva for (i = 0; i < len; i++) { 353*45d19b5fSMartina Krasteva ret = imx335_write_reg(imx335, regs[i].address, 1, regs[i].val); 354*45d19b5fSMartina Krasteva if (ret) 355*45d19b5fSMartina Krasteva return ret; 356*45d19b5fSMartina Krasteva } 357*45d19b5fSMartina Krasteva 358*45d19b5fSMartina Krasteva return 0; 359*45d19b5fSMartina Krasteva } 360*45d19b5fSMartina Krasteva 361*45d19b5fSMartina Krasteva /** 362*45d19b5fSMartina Krasteva * imx335_update_controls() - Update control ranges based on streaming mode 363*45d19b5fSMartina Krasteva * @imx335: pointer to imx335 device 364*45d19b5fSMartina Krasteva * @mode: pointer to imx335_mode sensor mode 365*45d19b5fSMartina Krasteva * 366*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 367*45d19b5fSMartina Krasteva */ 368*45d19b5fSMartina Krasteva static int imx335_update_controls(struct imx335 *imx335, 369*45d19b5fSMartina Krasteva const struct imx335_mode *mode) 370*45d19b5fSMartina Krasteva { 371*45d19b5fSMartina Krasteva int ret; 372*45d19b5fSMartina Krasteva 373*45d19b5fSMartina Krasteva ret = __v4l2_ctrl_s_ctrl(imx335->link_freq_ctrl, mode->link_freq_idx); 374*45d19b5fSMartina Krasteva if (ret) 375*45d19b5fSMartina Krasteva return ret; 376*45d19b5fSMartina Krasteva 377*45d19b5fSMartina Krasteva ret = __v4l2_ctrl_s_ctrl(imx335->hblank_ctrl, mode->hblank); 378*45d19b5fSMartina Krasteva if (ret) 379*45d19b5fSMartina Krasteva return ret; 380*45d19b5fSMartina Krasteva 381*45d19b5fSMartina Krasteva return __v4l2_ctrl_modify_range(imx335->vblank_ctrl, mode->vblank_min, 382*45d19b5fSMartina Krasteva mode->vblank_max, 1, mode->vblank); 383*45d19b5fSMartina Krasteva } 384*45d19b5fSMartina Krasteva 385*45d19b5fSMartina Krasteva /** 386*45d19b5fSMartina Krasteva * imx335_update_exp_gain() - Set updated exposure and gain 387*45d19b5fSMartina Krasteva * @imx335: pointer to imx335 device 388*45d19b5fSMartina Krasteva * @exposure: updated exposure value 389*45d19b5fSMartina Krasteva * @gain: updated analog gain value 390*45d19b5fSMartina Krasteva * 391*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 392*45d19b5fSMartina Krasteva */ 393*45d19b5fSMartina Krasteva static int imx335_update_exp_gain(struct imx335 *imx335, u32 exposure, u32 gain) 394*45d19b5fSMartina Krasteva { 395*45d19b5fSMartina Krasteva u32 lpfr, shutter; 396*45d19b5fSMartina Krasteva int ret; 397*45d19b5fSMartina Krasteva 398*45d19b5fSMartina Krasteva lpfr = imx335->vblank + imx335->cur_mode->height; 399*45d19b5fSMartina Krasteva shutter = lpfr - exposure; 400*45d19b5fSMartina Krasteva 401*45d19b5fSMartina Krasteva dev_dbg(imx335->dev, "Set exp %u, analog gain %u, shutter %u, lpfr %u", 402*45d19b5fSMartina Krasteva exposure, gain, shutter, lpfr); 403*45d19b5fSMartina Krasteva 404*45d19b5fSMartina Krasteva ret = imx335_write_reg(imx335, IMX335_REG_HOLD, 1, 1); 405*45d19b5fSMartina Krasteva if (ret) 406*45d19b5fSMartina Krasteva return ret; 407*45d19b5fSMartina Krasteva 408*45d19b5fSMartina Krasteva ret = imx335_write_reg(imx335, IMX335_REG_LPFR, 3, lpfr); 409*45d19b5fSMartina Krasteva if (ret) 410*45d19b5fSMartina Krasteva goto error_release_group_hold; 411*45d19b5fSMartina Krasteva 412*45d19b5fSMartina Krasteva ret = imx335_write_reg(imx335, IMX335_REG_SHUTTER, 3, shutter); 413*45d19b5fSMartina Krasteva if (ret) 414*45d19b5fSMartina Krasteva goto error_release_group_hold; 415*45d19b5fSMartina Krasteva 416*45d19b5fSMartina Krasteva ret = imx335_write_reg(imx335, IMX335_REG_AGAIN, 2, gain); 417*45d19b5fSMartina Krasteva 418*45d19b5fSMartina Krasteva error_release_group_hold: 419*45d19b5fSMartina Krasteva imx335_write_reg(imx335, IMX335_REG_HOLD, 1, 0); 420*45d19b5fSMartina Krasteva 421*45d19b5fSMartina Krasteva return ret; 422*45d19b5fSMartina Krasteva } 423*45d19b5fSMartina Krasteva 424*45d19b5fSMartina Krasteva /** 425*45d19b5fSMartina Krasteva * imx335_set_ctrl() - Set subdevice control 426*45d19b5fSMartina Krasteva * @ctrl: pointer to v4l2_ctrl structure 427*45d19b5fSMartina Krasteva * 428*45d19b5fSMartina Krasteva * Supported controls: 429*45d19b5fSMartina Krasteva * - V4L2_CID_VBLANK 430*45d19b5fSMartina Krasteva * - cluster controls: 431*45d19b5fSMartina Krasteva * - V4L2_CID_ANALOGUE_GAIN 432*45d19b5fSMartina Krasteva * - V4L2_CID_EXPOSURE 433*45d19b5fSMartina Krasteva * 434*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 435*45d19b5fSMartina Krasteva */ 436*45d19b5fSMartina Krasteva static int imx335_set_ctrl(struct v4l2_ctrl *ctrl) 437*45d19b5fSMartina Krasteva { 438*45d19b5fSMartina Krasteva struct imx335 *imx335 = 439*45d19b5fSMartina Krasteva container_of(ctrl->handler, struct imx335, ctrl_handler); 440*45d19b5fSMartina Krasteva u32 analog_gain; 441*45d19b5fSMartina Krasteva u32 exposure; 442*45d19b5fSMartina Krasteva int ret; 443*45d19b5fSMartina Krasteva 444*45d19b5fSMartina Krasteva switch (ctrl->id) { 445*45d19b5fSMartina Krasteva case V4L2_CID_VBLANK: 446*45d19b5fSMartina Krasteva imx335->vblank = imx335->vblank_ctrl->val; 447*45d19b5fSMartina Krasteva 448*45d19b5fSMartina Krasteva dev_dbg(imx335->dev, "Received vblank %u, new lpfr %u", 449*45d19b5fSMartina Krasteva imx335->vblank, 450*45d19b5fSMartina Krasteva imx335->vblank + imx335->cur_mode->height); 451*45d19b5fSMartina Krasteva 452*45d19b5fSMartina Krasteva ret = __v4l2_ctrl_modify_range(imx335->exp_ctrl, 453*45d19b5fSMartina Krasteva IMX335_EXPOSURE_MIN, 454*45d19b5fSMartina Krasteva imx335->vblank + 455*45d19b5fSMartina Krasteva imx335->cur_mode->height - 456*45d19b5fSMartina Krasteva IMX335_EXPOSURE_OFFSET, 457*45d19b5fSMartina Krasteva 1, IMX335_EXPOSURE_DEFAULT); 458*45d19b5fSMartina Krasteva break; 459*45d19b5fSMartina Krasteva case V4L2_CID_EXPOSURE: 460*45d19b5fSMartina Krasteva /* Set controls only if sensor is in power on state */ 461*45d19b5fSMartina Krasteva if (!pm_runtime_get_if_in_use(imx335->dev)) 462*45d19b5fSMartina Krasteva return 0; 463*45d19b5fSMartina Krasteva 464*45d19b5fSMartina Krasteva exposure = ctrl->val; 465*45d19b5fSMartina Krasteva analog_gain = imx335->again_ctrl->val; 466*45d19b5fSMartina Krasteva 467*45d19b5fSMartina Krasteva dev_dbg(imx335->dev, "Received exp %u, analog gain %u", 468*45d19b5fSMartina Krasteva exposure, analog_gain); 469*45d19b5fSMartina Krasteva 470*45d19b5fSMartina Krasteva ret = imx335_update_exp_gain(imx335, exposure, analog_gain); 471*45d19b5fSMartina Krasteva 472*45d19b5fSMartina Krasteva pm_runtime_put(imx335->dev); 473*45d19b5fSMartina Krasteva 474*45d19b5fSMartina Krasteva break; 475*45d19b5fSMartina Krasteva default: 476*45d19b5fSMartina Krasteva dev_err(imx335->dev, "Invalid control %d", ctrl->id); 477*45d19b5fSMartina Krasteva ret = -EINVAL; 478*45d19b5fSMartina Krasteva } 479*45d19b5fSMartina Krasteva 480*45d19b5fSMartina Krasteva return ret; 481*45d19b5fSMartina Krasteva } 482*45d19b5fSMartina Krasteva 483*45d19b5fSMartina Krasteva /* V4l2 subdevice control ops*/ 484*45d19b5fSMartina Krasteva static const struct v4l2_ctrl_ops imx335_ctrl_ops = { 485*45d19b5fSMartina Krasteva .s_ctrl = imx335_set_ctrl, 486*45d19b5fSMartina Krasteva }; 487*45d19b5fSMartina Krasteva 488*45d19b5fSMartina Krasteva /** 489*45d19b5fSMartina Krasteva * imx335_enum_mbus_code() - Enumerate V4L2 sub-device mbus codes 490*45d19b5fSMartina Krasteva * @sd: pointer to imx335 V4L2 sub-device structure 491*45d19b5fSMartina Krasteva * @sd_state: V4L2 sub-device configuration 492*45d19b5fSMartina Krasteva * @code: V4L2 sub-device code enumeration need to be filled 493*45d19b5fSMartina Krasteva * 494*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 495*45d19b5fSMartina Krasteva */ 496*45d19b5fSMartina Krasteva static int imx335_enum_mbus_code(struct v4l2_subdev *sd, 497*45d19b5fSMartina Krasteva struct v4l2_subdev_state *sd_state, 498*45d19b5fSMartina Krasteva struct v4l2_subdev_mbus_code_enum *code) 499*45d19b5fSMartina Krasteva { 500*45d19b5fSMartina Krasteva if (code->index > 0) 501*45d19b5fSMartina Krasteva return -EINVAL; 502*45d19b5fSMartina Krasteva 503*45d19b5fSMartina Krasteva code->code = supported_mode.code; 504*45d19b5fSMartina Krasteva 505*45d19b5fSMartina Krasteva return 0; 506*45d19b5fSMartina Krasteva } 507*45d19b5fSMartina Krasteva 508*45d19b5fSMartina Krasteva /** 509*45d19b5fSMartina Krasteva * imx335_enum_frame_size() - Enumerate V4L2 sub-device frame sizes 510*45d19b5fSMartina Krasteva * @sd: pointer to imx335 V4L2 sub-device structure 511*45d19b5fSMartina Krasteva * @sd_state: V4L2 sub-device configuration 512*45d19b5fSMartina Krasteva * @fsize: V4L2 sub-device size enumeration need to be filled 513*45d19b5fSMartina Krasteva * 514*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 515*45d19b5fSMartina Krasteva */ 516*45d19b5fSMartina Krasteva static int imx335_enum_frame_size(struct v4l2_subdev *sd, 517*45d19b5fSMartina Krasteva struct v4l2_subdev_state *sd_state, 518*45d19b5fSMartina Krasteva struct v4l2_subdev_frame_size_enum *fsize) 519*45d19b5fSMartina Krasteva { 520*45d19b5fSMartina Krasteva if (fsize->index > 0) 521*45d19b5fSMartina Krasteva return -EINVAL; 522*45d19b5fSMartina Krasteva 523*45d19b5fSMartina Krasteva if (fsize->code != supported_mode.code) 524*45d19b5fSMartina Krasteva return -EINVAL; 525*45d19b5fSMartina Krasteva 526*45d19b5fSMartina Krasteva fsize->min_width = supported_mode.width; 527*45d19b5fSMartina Krasteva fsize->max_width = fsize->min_width; 528*45d19b5fSMartina Krasteva fsize->min_height = supported_mode.height; 529*45d19b5fSMartina Krasteva fsize->max_height = fsize->min_height; 530*45d19b5fSMartina Krasteva 531*45d19b5fSMartina Krasteva return 0; 532*45d19b5fSMartina Krasteva } 533*45d19b5fSMartina Krasteva 534*45d19b5fSMartina Krasteva /** 535*45d19b5fSMartina Krasteva * imx335_fill_pad_format() - Fill subdevice pad format 536*45d19b5fSMartina Krasteva * from selected sensor mode 537*45d19b5fSMartina Krasteva * @imx335: pointer to imx335 device 538*45d19b5fSMartina Krasteva * @mode: pointer to imx335_mode sensor mode 539*45d19b5fSMartina Krasteva * @fmt: V4L2 sub-device format need to be filled 540*45d19b5fSMartina Krasteva */ 541*45d19b5fSMartina Krasteva static void imx335_fill_pad_format(struct imx335 *imx335, 542*45d19b5fSMartina Krasteva const struct imx335_mode *mode, 543*45d19b5fSMartina Krasteva struct v4l2_subdev_format *fmt) 544*45d19b5fSMartina Krasteva { 545*45d19b5fSMartina Krasteva fmt->format.width = mode->width; 546*45d19b5fSMartina Krasteva fmt->format.height = mode->height; 547*45d19b5fSMartina Krasteva fmt->format.code = mode->code; 548*45d19b5fSMartina Krasteva fmt->format.field = V4L2_FIELD_NONE; 549*45d19b5fSMartina Krasteva fmt->format.colorspace = V4L2_COLORSPACE_RAW; 550*45d19b5fSMartina Krasteva fmt->format.ycbcr_enc = V4L2_YCBCR_ENC_DEFAULT; 551*45d19b5fSMartina Krasteva fmt->format.quantization = V4L2_QUANTIZATION_DEFAULT; 552*45d19b5fSMartina Krasteva fmt->format.xfer_func = V4L2_XFER_FUNC_NONE; 553*45d19b5fSMartina Krasteva } 554*45d19b5fSMartina Krasteva 555*45d19b5fSMartina Krasteva /** 556*45d19b5fSMartina Krasteva * imx335_get_pad_format() - Get subdevice pad format 557*45d19b5fSMartina Krasteva * @sd: pointer to imx335 V4L2 sub-device structure 558*45d19b5fSMartina Krasteva * @sd_state: V4L2 sub-device configuration 559*45d19b5fSMartina Krasteva * @fmt: V4L2 sub-device format need to be set 560*45d19b5fSMartina Krasteva * 561*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 562*45d19b5fSMartina Krasteva */ 563*45d19b5fSMartina Krasteva static int imx335_get_pad_format(struct v4l2_subdev *sd, 564*45d19b5fSMartina Krasteva struct v4l2_subdev_state *sd_state, 565*45d19b5fSMartina Krasteva struct v4l2_subdev_format *fmt) 566*45d19b5fSMartina Krasteva { 567*45d19b5fSMartina Krasteva struct imx335 *imx335 = to_imx335(sd); 568*45d19b5fSMartina Krasteva 569*45d19b5fSMartina Krasteva mutex_lock(&imx335->mutex); 570*45d19b5fSMartina Krasteva 571*45d19b5fSMartina Krasteva if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { 572*45d19b5fSMartina Krasteva struct v4l2_mbus_framefmt *framefmt; 573*45d19b5fSMartina Krasteva 574*45d19b5fSMartina Krasteva framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad); 575*45d19b5fSMartina Krasteva fmt->format = *framefmt; 576*45d19b5fSMartina Krasteva } else { 577*45d19b5fSMartina Krasteva imx335_fill_pad_format(imx335, imx335->cur_mode, fmt); 578*45d19b5fSMartina Krasteva } 579*45d19b5fSMartina Krasteva 580*45d19b5fSMartina Krasteva mutex_unlock(&imx335->mutex); 581*45d19b5fSMartina Krasteva 582*45d19b5fSMartina Krasteva return 0; 583*45d19b5fSMartina Krasteva } 584*45d19b5fSMartina Krasteva 585*45d19b5fSMartina Krasteva /** 586*45d19b5fSMartina Krasteva * imx335_set_pad_format() - Set subdevice pad format 587*45d19b5fSMartina Krasteva * @sd: pointer to imx335 V4L2 sub-device structure 588*45d19b5fSMartina Krasteva * @sd_state: V4L2 sub-device configuration 589*45d19b5fSMartina Krasteva * @fmt: V4L2 sub-device format need to be set 590*45d19b5fSMartina Krasteva * 591*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 592*45d19b5fSMartina Krasteva */ 593*45d19b5fSMartina Krasteva static int imx335_set_pad_format(struct v4l2_subdev *sd, 594*45d19b5fSMartina Krasteva struct v4l2_subdev_state *sd_state, 595*45d19b5fSMartina Krasteva struct v4l2_subdev_format *fmt) 596*45d19b5fSMartina Krasteva { 597*45d19b5fSMartina Krasteva struct imx335 *imx335 = to_imx335(sd); 598*45d19b5fSMartina Krasteva const struct imx335_mode *mode; 599*45d19b5fSMartina Krasteva int ret = 0; 600*45d19b5fSMartina Krasteva 601*45d19b5fSMartina Krasteva mutex_lock(&imx335->mutex); 602*45d19b5fSMartina Krasteva 603*45d19b5fSMartina Krasteva mode = &supported_mode; 604*45d19b5fSMartina Krasteva imx335_fill_pad_format(imx335, mode, fmt); 605*45d19b5fSMartina Krasteva 606*45d19b5fSMartina Krasteva if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) { 607*45d19b5fSMartina Krasteva struct v4l2_mbus_framefmt *framefmt; 608*45d19b5fSMartina Krasteva 609*45d19b5fSMartina Krasteva framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad); 610*45d19b5fSMartina Krasteva *framefmt = fmt->format; 611*45d19b5fSMartina Krasteva } else { 612*45d19b5fSMartina Krasteva ret = imx335_update_controls(imx335, mode); 613*45d19b5fSMartina Krasteva if (!ret) 614*45d19b5fSMartina Krasteva imx335->cur_mode = mode; 615*45d19b5fSMartina Krasteva } 616*45d19b5fSMartina Krasteva 617*45d19b5fSMartina Krasteva mutex_unlock(&imx335->mutex); 618*45d19b5fSMartina Krasteva 619*45d19b5fSMartina Krasteva return ret; 620*45d19b5fSMartina Krasteva } 621*45d19b5fSMartina Krasteva 622*45d19b5fSMartina Krasteva /** 623*45d19b5fSMartina Krasteva * imx335_init_pad_cfg() - Initialize sub-device pad configuration 624*45d19b5fSMartina Krasteva * @sd: pointer to imx335 V4L2 sub-device structure 625*45d19b5fSMartina Krasteva * @sd_state: V4L2 sub-device configuration 626*45d19b5fSMartina Krasteva * 627*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 628*45d19b5fSMartina Krasteva */ 629*45d19b5fSMartina Krasteva static int imx335_init_pad_cfg(struct v4l2_subdev *sd, 630*45d19b5fSMartina Krasteva struct v4l2_subdev_state *sd_state) 631*45d19b5fSMartina Krasteva { 632*45d19b5fSMartina Krasteva struct imx335 *imx335 = to_imx335(sd); 633*45d19b5fSMartina Krasteva struct v4l2_subdev_format fmt = { 0 }; 634*45d19b5fSMartina Krasteva 635*45d19b5fSMartina Krasteva fmt.which = sd_state ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; 636*45d19b5fSMartina Krasteva imx335_fill_pad_format(imx335, &supported_mode, &fmt); 637*45d19b5fSMartina Krasteva 638*45d19b5fSMartina Krasteva return imx335_set_pad_format(sd, sd_state, &fmt); 639*45d19b5fSMartina Krasteva } 640*45d19b5fSMartina Krasteva 641*45d19b5fSMartina Krasteva /** 642*45d19b5fSMartina Krasteva * imx335_start_streaming() - Start sensor stream 643*45d19b5fSMartina Krasteva * @imx335: pointer to imx335 device 644*45d19b5fSMartina Krasteva * 645*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 646*45d19b5fSMartina Krasteva */ 647*45d19b5fSMartina Krasteva static int imx335_start_streaming(struct imx335 *imx335) 648*45d19b5fSMartina Krasteva { 649*45d19b5fSMartina Krasteva const struct imx335_reg_list *reg_list; 650*45d19b5fSMartina Krasteva int ret; 651*45d19b5fSMartina Krasteva 652*45d19b5fSMartina Krasteva /* Write sensor mode registers */ 653*45d19b5fSMartina Krasteva reg_list = &imx335->cur_mode->reg_list; 654*45d19b5fSMartina Krasteva ret = imx335_write_regs(imx335, reg_list->regs, 655*45d19b5fSMartina Krasteva reg_list->num_of_regs); 656*45d19b5fSMartina Krasteva if (ret) { 657*45d19b5fSMartina Krasteva dev_err(imx335->dev, "fail to write initial registers"); 658*45d19b5fSMartina Krasteva return ret; 659*45d19b5fSMartina Krasteva } 660*45d19b5fSMartina Krasteva 661*45d19b5fSMartina Krasteva /* Setup handler will write actual exposure and gain */ 662*45d19b5fSMartina Krasteva ret = __v4l2_ctrl_handler_setup(imx335->sd.ctrl_handler); 663*45d19b5fSMartina Krasteva if (ret) { 664*45d19b5fSMartina Krasteva dev_err(imx335->dev, "fail to setup handler"); 665*45d19b5fSMartina Krasteva return ret; 666*45d19b5fSMartina Krasteva } 667*45d19b5fSMartina Krasteva 668*45d19b5fSMartina Krasteva /* Start streaming */ 669*45d19b5fSMartina Krasteva ret = imx335_write_reg(imx335, IMX335_REG_MODE_SELECT, 670*45d19b5fSMartina Krasteva 1, IMX335_MODE_STREAMING); 671*45d19b5fSMartina Krasteva if (ret) { 672*45d19b5fSMartina Krasteva dev_err(imx335->dev, "fail to start streaming"); 673*45d19b5fSMartina Krasteva return ret; 674*45d19b5fSMartina Krasteva } 675*45d19b5fSMartina Krasteva 676*45d19b5fSMartina Krasteva /* Initial regulator stabilization period */ 677*45d19b5fSMartina Krasteva usleep_range(18000, 20000); 678*45d19b5fSMartina Krasteva 679*45d19b5fSMartina Krasteva return 0; 680*45d19b5fSMartina Krasteva } 681*45d19b5fSMartina Krasteva 682*45d19b5fSMartina Krasteva /** 683*45d19b5fSMartina Krasteva * imx335_stop_streaming() - Stop sensor stream 684*45d19b5fSMartina Krasteva * @imx335: pointer to imx335 device 685*45d19b5fSMartina Krasteva * 686*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 687*45d19b5fSMartina Krasteva */ 688*45d19b5fSMartina Krasteva static int imx335_stop_streaming(struct imx335 *imx335) 689*45d19b5fSMartina Krasteva { 690*45d19b5fSMartina Krasteva return imx335_write_reg(imx335, IMX335_REG_MODE_SELECT, 691*45d19b5fSMartina Krasteva 1, IMX335_MODE_STANDBY); 692*45d19b5fSMartina Krasteva } 693*45d19b5fSMartina Krasteva 694*45d19b5fSMartina Krasteva /** 695*45d19b5fSMartina Krasteva * imx335_set_stream() - Enable sensor streaming 696*45d19b5fSMartina Krasteva * @sd: pointer to imx335 subdevice 697*45d19b5fSMartina Krasteva * @enable: set to enable sensor streaming 698*45d19b5fSMartina Krasteva * 699*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 700*45d19b5fSMartina Krasteva */ 701*45d19b5fSMartina Krasteva static int imx335_set_stream(struct v4l2_subdev *sd, int enable) 702*45d19b5fSMartina Krasteva { 703*45d19b5fSMartina Krasteva struct imx335 *imx335 = to_imx335(sd); 704*45d19b5fSMartina Krasteva int ret; 705*45d19b5fSMartina Krasteva 706*45d19b5fSMartina Krasteva mutex_lock(&imx335->mutex); 707*45d19b5fSMartina Krasteva 708*45d19b5fSMartina Krasteva if (imx335->streaming == enable) { 709*45d19b5fSMartina Krasteva mutex_unlock(&imx335->mutex); 710*45d19b5fSMartina Krasteva return 0; 711*45d19b5fSMartina Krasteva } 712*45d19b5fSMartina Krasteva 713*45d19b5fSMartina Krasteva if (enable) { 714*45d19b5fSMartina Krasteva ret = pm_runtime_resume_and_get(imx335->dev); 715*45d19b5fSMartina Krasteva if (ret) 716*45d19b5fSMartina Krasteva goto error_unlock; 717*45d19b5fSMartina Krasteva 718*45d19b5fSMartina Krasteva ret = imx335_start_streaming(imx335); 719*45d19b5fSMartina Krasteva if (ret) 720*45d19b5fSMartina Krasteva goto error_power_off; 721*45d19b5fSMartina Krasteva } else { 722*45d19b5fSMartina Krasteva imx335_stop_streaming(imx335); 723*45d19b5fSMartina Krasteva pm_runtime_put(imx335->dev); 724*45d19b5fSMartina Krasteva } 725*45d19b5fSMartina Krasteva 726*45d19b5fSMartina Krasteva imx335->streaming = enable; 727*45d19b5fSMartina Krasteva 728*45d19b5fSMartina Krasteva mutex_unlock(&imx335->mutex); 729*45d19b5fSMartina Krasteva 730*45d19b5fSMartina Krasteva return 0; 731*45d19b5fSMartina Krasteva 732*45d19b5fSMartina Krasteva error_power_off: 733*45d19b5fSMartina Krasteva pm_runtime_put(imx335->dev); 734*45d19b5fSMartina Krasteva error_unlock: 735*45d19b5fSMartina Krasteva mutex_unlock(&imx335->mutex); 736*45d19b5fSMartina Krasteva 737*45d19b5fSMartina Krasteva return ret; 738*45d19b5fSMartina Krasteva } 739*45d19b5fSMartina Krasteva 740*45d19b5fSMartina Krasteva /** 741*45d19b5fSMartina Krasteva * imx335_detect() - Detect imx335 sensor 742*45d19b5fSMartina Krasteva * @imx335: pointer to imx335 device 743*45d19b5fSMartina Krasteva * 744*45d19b5fSMartina Krasteva * Return: 0 if successful, -EIO if sensor id does not match 745*45d19b5fSMartina Krasteva */ 746*45d19b5fSMartina Krasteva static int imx335_detect(struct imx335 *imx335) 747*45d19b5fSMartina Krasteva { 748*45d19b5fSMartina Krasteva int ret; 749*45d19b5fSMartina Krasteva u32 val; 750*45d19b5fSMartina Krasteva 751*45d19b5fSMartina Krasteva ret = imx335_read_reg(imx335, IMX335_REG_ID, 2, &val); 752*45d19b5fSMartina Krasteva if (ret) 753*45d19b5fSMartina Krasteva return ret; 754*45d19b5fSMartina Krasteva 755*45d19b5fSMartina Krasteva if (val != IMX335_ID) { 756*45d19b5fSMartina Krasteva dev_err(imx335->dev, "chip id mismatch: %x!=%x", 757*45d19b5fSMartina Krasteva IMX335_ID, val); 758*45d19b5fSMartina Krasteva return -ENXIO; 759*45d19b5fSMartina Krasteva } 760*45d19b5fSMartina Krasteva 761*45d19b5fSMartina Krasteva return 0; 762*45d19b5fSMartina Krasteva } 763*45d19b5fSMartina Krasteva 764*45d19b5fSMartina Krasteva /** 765*45d19b5fSMartina Krasteva * imx335_parse_hw_config() - Parse HW configuration and check if supported 766*45d19b5fSMartina Krasteva * @imx335: pointer to imx335 device 767*45d19b5fSMartina Krasteva * 768*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 769*45d19b5fSMartina Krasteva */ 770*45d19b5fSMartina Krasteva static int imx335_parse_hw_config(struct imx335 *imx335) 771*45d19b5fSMartina Krasteva { 772*45d19b5fSMartina Krasteva struct fwnode_handle *fwnode = dev_fwnode(imx335->dev); 773*45d19b5fSMartina Krasteva struct v4l2_fwnode_endpoint bus_cfg = { 774*45d19b5fSMartina Krasteva .bus_type = V4L2_MBUS_CSI2_DPHY 775*45d19b5fSMartina Krasteva }; 776*45d19b5fSMartina Krasteva struct fwnode_handle *ep; 777*45d19b5fSMartina Krasteva unsigned long rate; 778*45d19b5fSMartina Krasteva unsigned int i; 779*45d19b5fSMartina Krasteva int ret; 780*45d19b5fSMartina Krasteva 781*45d19b5fSMartina Krasteva if (!fwnode) 782*45d19b5fSMartina Krasteva return -ENXIO; 783*45d19b5fSMartina Krasteva 784*45d19b5fSMartina Krasteva /* Request optional reset pin */ 785*45d19b5fSMartina Krasteva imx335->reset_gpio = devm_gpiod_get_optional(imx335->dev, "reset", 786*45d19b5fSMartina Krasteva GPIOD_OUT_LOW); 787*45d19b5fSMartina Krasteva if (IS_ERR(imx335->reset_gpio)) { 788*45d19b5fSMartina Krasteva dev_err(imx335->dev, "failed to get reset gpio %ld", 789*45d19b5fSMartina Krasteva PTR_ERR(imx335->reset_gpio)); 790*45d19b5fSMartina Krasteva return PTR_ERR(imx335->reset_gpio); 791*45d19b5fSMartina Krasteva } 792*45d19b5fSMartina Krasteva 793*45d19b5fSMartina Krasteva /* Get sensor input clock */ 794*45d19b5fSMartina Krasteva imx335->inclk = devm_clk_get(imx335->dev, NULL); 795*45d19b5fSMartina Krasteva if (IS_ERR(imx335->inclk)) { 796*45d19b5fSMartina Krasteva dev_err(imx335->dev, "could not get inclk"); 797*45d19b5fSMartina Krasteva return PTR_ERR(imx335->inclk); 798*45d19b5fSMartina Krasteva } 799*45d19b5fSMartina Krasteva 800*45d19b5fSMartina Krasteva rate = clk_get_rate(imx335->inclk); 801*45d19b5fSMartina Krasteva if (rate != IMX335_INCLK_RATE) { 802*45d19b5fSMartina Krasteva dev_err(imx335->dev, "inclk frequency mismatch"); 803*45d19b5fSMartina Krasteva return -EINVAL; 804*45d19b5fSMartina Krasteva } 805*45d19b5fSMartina Krasteva 806*45d19b5fSMartina Krasteva ep = fwnode_graph_get_next_endpoint(fwnode, NULL); 807*45d19b5fSMartina Krasteva if (!ep) 808*45d19b5fSMartina Krasteva return -ENXIO; 809*45d19b5fSMartina Krasteva 810*45d19b5fSMartina Krasteva ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); 811*45d19b5fSMartina Krasteva fwnode_handle_put(ep); 812*45d19b5fSMartina Krasteva if (ret) 813*45d19b5fSMartina Krasteva return ret; 814*45d19b5fSMartina Krasteva 815*45d19b5fSMartina Krasteva if (bus_cfg.bus.mipi_csi2.num_data_lanes != IMX335_NUM_DATA_LANES) { 816*45d19b5fSMartina Krasteva dev_err(imx335->dev, 817*45d19b5fSMartina Krasteva "number of CSI2 data lanes %d is not supported", 818*45d19b5fSMartina Krasteva bus_cfg.bus.mipi_csi2.num_data_lanes); 819*45d19b5fSMartina Krasteva ret = -EINVAL; 820*45d19b5fSMartina Krasteva goto done_endpoint_free; 821*45d19b5fSMartina Krasteva } 822*45d19b5fSMartina Krasteva 823*45d19b5fSMartina Krasteva if (!bus_cfg.nr_of_link_frequencies) { 824*45d19b5fSMartina Krasteva dev_err(imx335->dev, "no link frequencies defined"); 825*45d19b5fSMartina Krasteva ret = -EINVAL; 826*45d19b5fSMartina Krasteva goto done_endpoint_free; 827*45d19b5fSMartina Krasteva } 828*45d19b5fSMartina Krasteva 829*45d19b5fSMartina Krasteva for (i = 0; i < bus_cfg.nr_of_link_frequencies; i++) 830*45d19b5fSMartina Krasteva if (bus_cfg.link_frequencies[i] == IMX335_LINK_FREQ) 831*45d19b5fSMartina Krasteva goto done_endpoint_free; 832*45d19b5fSMartina Krasteva 833*45d19b5fSMartina Krasteva ret = -EINVAL; 834*45d19b5fSMartina Krasteva 835*45d19b5fSMartina Krasteva done_endpoint_free: 836*45d19b5fSMartina Krasteva v4l2_fwnode_endpoint_free(&bus_cfg); 837*45d19b5fSMartina Krasteva 838*45d19b5fSMartina Krasteva return ret; 839*45d19b5fSMartina Krasteva } 840*45d19b5fSMartina Krasteva 841*45d19b5fSMartina Krasteva /* V4l2 subdevice ops */ 842*45d19b5fSMartina Krasteva static const struct v4l2_subdev_video_ops imx335_video_ops = { 843*45d19b5fSMartina Krasteva .s_stream = imx335_set_stream, 844*45d19b5fSMartina Krasteva }; 845*45d19b5fSMartina Krasteva 846*45d19b5fSMartina Krasteva static const struct v4l2_subdev_pad_ops imx335_pad_ops = { 847*45d19b5fSMartina Krasteva .init_cfg = imx335_init_pad_cfg, 848*45d19b5fSMartina Krasteva .enum_mbus_code = imx335_enum_mbus_code, 849*45d19b5fSMartina Krasteva .enum_frame_size = imx335_enum_frame_size, 850*45d19b5fSMartina Krasteva .get_fmt = imx335_get_pad_format, 851*45d19b5fSMartina Krasteva .set_fmt = imx335_set_pad_format, 852*45d19b5fSMartina Krasteva }; 853*45d19b5fSMartina Krasteva 854*45d19b5fSMartina Krasteva static const struct v4l2_subdev_ops imx335_subdev_ops = { 855*45d19b5fSMartina Krasteva .video = &imx335_video_ops, 856*45d19b5fSMartina Krasteva .pad = &imx335_pad_ops, 857*45d19b5fSMartina Krasteva }; 858*45d19b5fSMartina Krasteva 859*45d19b5fSMartina Krasteva /** 860*45d19b5fSMartina Krasteva * imx335_power_on() - Sensor power on sequence 861*45d19b5fSMartina Krasteva * @dev: pointer to i2c device 862*45d19b5fSMartina Krasteva * 863*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 864*45d19b5fSMartina Krasteva */ 865*45d19b5fSMartina Krasteva static int imx335_power_on(struct device *dev) 866*45d19b5fSMartina Krasteva { 867*45d19b5fSMartina Krasteva struct v4l2_subdev *sd = dev_get_drvdata(dev); 868*45d19b5fSMartina Krasteva struct imx335 *imx335 = to_imx335(sd); 869*45d19b5fSMartina Krasteva int ret; 870*45d19b5fSMartina Krasteva 871*45d19b5fSMartina Krasteva gpiod_set_value_cansleep(imx335->reset_gpio, 1); 872*45d19b5fSMartina Krasteva 873*45d19b5fSMartina Krasteva ret = clk_prepare_enable(imx335->inclk); 874*45d19b5fSMartina Krasteva if (ret) { 875*45d19b5fSMartina Krasteva dev_err(imx335->dev, "fail to enable inclk"); 876*45d19b5fSMartina Krasteva goto error_reset; 877*45d19b5fSMartina Krasteva } 878*45d19b5fSMartina Krasteva 879*45d19b5fSMartina Krasteva usleep_range(20, 22); 880*45d19b5fSMartina Krasteva 881*45d19b5fSMartina Krasteva return 0; 882*45d19b5fSMartina Krasteva 883*45d19b5fSMartina Krasteva error_reset: 884*45d19b5fSMartina Krasteva gpiod_set_value_cansleep(imx335->reset_gpio, 0); 885*45d19b5fSMartina Krasteva 886*45d19b5fSMartina Krasteva return ret; 887*45d19b5fSMartina Krasteva } 888*45d19b5fSMartina Krasteva 889*45d19b5fSMartina Krasteva /** 890*45d19b5fSMartina Krasteva * imx335_power_off() - Sensor power off sequence 891*45d19b5fSMartina Krasteva * @dev: pointer to i2c device 892*45d19b5fSMartina Krasteva * 893*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 894*45d19b5fSMartina Krasteva */ 895*45d19b5fSMartina Krasteva static int imx335_power_off(struct device *dev) 896*45d19b5fSMartina Krasteva { 897*45d19b5fSMartina Krasteva struct v4l2_subdev *sd = dev_get_drvdata(dev); 898*45d19b5fSMartina Krasteva struct imx335 *imx335 = to_imx335(sd); 899*45d19b5fSMartina Krasteva 900*45d19b5fSMartina Krasteva gpiod_set_value_cansleep(imx335->reset_gpio, 0); 901*45d19b5fSMartina Krasteva 902*45d19b5fSMartina Krasteva clk_disable_unprepare(imx335->inclk); 903*45d19b5fSMartina Krasteva 904*45d19b5fSMartina Krasteva return 0; 905*45d19b5fSMartina Krasteva } 906*45d19b5fSMartina Krasteva 907*45d19b5fSMartina Krasteva /** 908*45d19b5fSMartina Krasteva * imx335_init_controls() - Initialize sensor subdevice controls 909*45d19b5fSMartina Krasteva * @imx335: pointer to imx335 device 910*45d19b5fSMartina Krasteva * 911*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 912*45d19b5fSMartina Krasteva */ 913*45d19b5fSMartina Krasteva static int imx335_init_controls(struct imx335 *imx335) 914*45d19b5fSMartina Krasteva { 915*45d19b5fSMartina Krasteva struct v4l2_ctrl_handler *ctrl_hdlr = &imx335->ctrl_handler; 916*45d19b5fSMartina Krasteva const struct imx335_mode *mode = imx335->cur_mode; 917*45d19b5fSMartina Krasteva u32 lpfr; 918*45d19b5fSMartina Krasteva int ret; 919*45d19b5fSMartina Krasteva 920*45d19b5fSMartina Krasteva ret = v4l2_ctrl_handler_init(ctrl_hdlr, 6); 921*45d19b5fSMartina Krasteva if (ret) 922*45d19b5fSMartina Krasteva return ret; 923*45d19b5fSMartina Krasteva 924*45d19b5fSMartina Krasteva /* Serialize controls with sensor device */ 925*45d19b5fSMartina Krasteva ctrl_hdlr->lock = &imx335->mutex; 926*45d19b5fSMartina Krasteva 927*45d19b5fSMartina Krasteva /* Initialize exposure and gain */ 928*45d19b5fSMartina Krasteva lpfr = mode->vblank + mode->height; 929*45d19b5fSMartina Krasteva imx335->exp_ctrl = v4l2_ctrl_new_std(ctrl_hdlr, 930*45d19b5fSMartina Krasteva &imx335_ctrl_ops, 931*45d19b5fSMartina Krasteva V4L2_CID_EXPOSURE, 932*45d19b5fSMartina Krasteva IMX335_EXPOSURE_MIN, 933*45d19b5fSMartina Krasteva lpfr - IMX335_EXPOSURE_OFFSET, 934*45d19b5fSMartina Krasteva IMX335_EXPOSURE_STEP, 935*45d19b5fSMartina Krasteva IMX335_EXPOSURE_DEFAULT); 936*45d19b5fSMartina Krasteva 937*45d19b5fSMartina Krasteva imx335->again_ctrl = v4l2_ctrl_new_std(ctrl_hdlr, 938*45d19b5fSMartina Krasteva &imx335_ctrl_ops, 939*45d19b5fSMartina Krasteva V4L2_CID_ANALOGUE_GAIN, 940*45d19b5fSMartina Krasteva IMX335_AGAIN_MIN, 941*45d19b5fSMartina Krasteva IMX335_AGAIN_MAX, 942*45d19b5fSMartina Krasteva IMX335_AGAIN_STEP, 943*45d19b5fSMartina Krasteva IMX335_AGAIN_DEFAULT); 944*45d19b5fSMartina Krasteva 945*45d19b5fSMartina Krasteva v4l2_ctrl_cluster(2, &imx335->exp_ctrl); 946*45d19b5fSMartina Krasteva 947*45d19b5fSMartina Krasteva imx335->vblank_ctrl = v4l2_ctrl_new_std(ctrl_hdlr, 948*45d19b5fSMartina Krasteva &imx335_ctrl_ops, 949*45d19b5fSMartina Krasteva V4L2_CID_VBLANK, 950*45d19b5fSMartina Krasteva mode->vblank_min, 951*45d19b5fSMartina Krasteva mode->vblank_max, 952*45d19b5fSMartina Krasteva 1, mode->vblank); 953*45d19b5fSMartina Krasteva 954*45d19b5fSMartina Krasteva /* Read only controls */ 955*45d19b5fSMartina Krasteva imx335->pclk_ctrl = v4l2_ctrl_new_std(ctrl_hdlr, 956*45d19b5fSMartina Krasteva &imx335_ctrl_ops, 957*45d19b5fSMartina Krasteva V4L2_CID_PIXEL_RATE, 958*45d19b5fSMartina Krasteva mode->pclk, mode->pclk, 959*45d19b5fSMartina Krasteva 1, mode->pclk); 960*45d19b5fSMartina Krasteva 961*45d19b5fSMartina Krasteva imx335->link_freq_ctrl = v4l2_ctrl_new_int_menu(ctrl_hdlr, 962*45d19b5fSMartina Krasteva &imx335_ctrl_ops, 963*45d19b5fSMartina Krasteva V4L2_CID_LINK_FREQ, 964*45d19b5fSMartina Krasteva ARRAY_SIZE(link_freq) - 965*45d19b5fSMartina Krasteva 1, 966*45d19b5fSMartina Krasteva mode->link_freq_idx, 967*45d19b5fSMartina Krasteva link_freq); 968*45d19b5fSMartina Krasteva if (imx335->link_freq_ctrl) 969*45d19b5fSMartina Krasteva imx335->link_freq_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; 970*45d19b5fSMartina Krasteva 971*45d19b5fSMartina Krasteva imx335->hblank_ctrl = v4l2_ctrl_new_std(ctrl_hdlr, 972*45d19b5fSMartina Krasteva &imx335_ctrl_ops, 973*45d19b5fSMartina Krasteva V4L2_CID_HBLANK, 974*45d19b5fSMartina Krasteva IMX335_REG_MIN, 975*45d19b5fSMartina Krasteva IMX335_REG_MAX, 976*45d19b5fSMartina Krasteva 1, mode->hblank); 977*45d19b5fSMartina Krasteva if (imx335->hblank_ctrl) 978*45d19b5fSMartina Krasteva imx335->hblank_ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; 979*45d19b5fSMartina Krasteva 980*45d19b5fSMartina Krasteva if (ctrl_hdlr->error) { 981*45d19b5fSMartina Krasteva dev_err(imx335->dev, "control init failed: %d", 982*45d19b5fSMartina Krasteva ctrl_hdlr->error); 983*45d19b5fSMartina Krasteva v4l2_ctrl_handler_free(ctrl_hdlr); 984*45d19b5fSMartina Krasteva return ctrl_hdlr->error; 985*45d19b5fSMartina Krasteva } 986*45d19b5fSMartina Krasteva 987*45d19b5fSMartina Krasteva imx335->sd.ctrl_handler = ctrl_hdlr; 988*45d19b5fSMartina Krasteva 989*45d19b5fSMartina Krasteva return 0; 990*45d19b5fSMartina Krasteva } 991*45d19b5fSMartina Krasteva 992*45d19b5fSMartina Krasteva /** 993*45d19b5fSMartina Krasteva * imx335_probe() - I2C client device binding 994*45d19b5fSMartina Krasteva * @client: pointer to i2c client device 995*45d19b5fSMartina Krasteva * 996*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 997*45d19b5fSMartina Krasteva */ 998*45d19b5fSMartina Krasteva static int imx335_probe(struct i2c_client *client) 999*45d19b5fSMartina Krasteva { 1000*45d19b5fSMartina Krasteva struct imx335 *imx335; 1001*45d19b5fSMartina Krasteva int ret; 1002*45d19b5fSMartina Krasteva 1003*45d19b5fSMartina Krasteva imx335 = devm_kzalloc(&client->dev, sizeof(*imx335), GFP_KERNEL); 1004*45d19b5fSMartina Krasteva if (!imx335) 1005*45d19b5fSMartina Krasteva return -ENOMEM; 1006*45d19b5fSMartina Krasteva 1007*45d19b5fSMartina Krasteva imx335->dev = &client->dev; 1008*45d19b5fSMartina Krasteva 1009*45d19b5fSMartina Krasteva /* Initialize subdev */ 1010*45d19b5fSMartina Krasteva v4l2_i2c_subdev_init(&imx335->sd, client, &imx335_subdev_ops); 1011*45d19b5fSMartina Krasteva 1012*45d19b5fSMartina Krasteva ret = imx335_parse_hw_config(imx335); 1013*45d19b5fSMartina Krasteva if (ret) { 1014*45d19b5fSMartina Krasteva dev_err(imx335->dev, "HW configuration is not supported"); 1015*45d19b5fSMartina Krasteva return ret; 1016*45d19b5fSMartina Krasteva } 1017*45d19b5fSMartina Krasteva 1018*45d19b5fSMartina Krasteva mutex_init(&imx335->mutex); 1019*45d19b5fSMartina Krasteva 1020*45d19b5fSMartina Krasteva ret = imx335_power_on(imx335->dev); 1021*45d19b5fSMartina Krasteva if (ret) { 1022*45d19b5fSMartina Krasteva dev_err(imx335->dev, "failed to power-on the sensor"); 1023*45d19b5fSMartina Krasteva goto error_mutex_destroy; 1024*45d19b5fSMartina Krasteva } 1025*45d19b5fSMartina Krasteva 1026*45d19b5fSMartina Krasteva /* Check module identity */ 1027*45d19b5fSMartina Krasteva ret = imx335_detect(imx335); 1028*45d19b5fSMartina Krasteva if (ret) { 1029*45d19b5fSMartina Krasteva dev_err(imx335->dev, "failed to find sensor: %d", ret); 1030*45d19b5fSMartina Krasteva goto error_power_off; 1031*45d19b5fSMartina Krasteva } 1032*45d19b5fSMartina Krasteva 1033*45d19b5fSMartina Krasteva /* Set default mode to max resolution */ 1034*45d19b5fSMartina Krasteva imx335->cur_mode = &supported_mode; 1035*45d19b5fSMartina Krasteva imx335->vblank = imx335->cur_mode->vblank; 1036*45d19b5fSMartina Krasteva 1037*45d19b5fSMartina Krasteva ret = imx335_init_controls(imx335); 1038*45d19b5fSMartina Krasteva if (ret) { 1039*45d19b5fSMartina Krasteva dev_err(imx335->dev, "failed to init controls: %d", ret); 1040*45d19b5fSMartina Krasteva goto error_power_off; 1041*45d19b5fSMartina Krasteva } 1042*45d19b5fSMartina Krasteva 1043*45d19b5fSMartina Krasteva /* Initialize subdev */ 1044*45d19b5fSMartina Krasteva imx335->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; 1045*45d19b5fSMartina Krasteva imx335->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; 1046*45d19b5fSMartina Krasteva 1047*45d19b5fSMartina Krasteva /* Initialize source pad */ 1048*45d19b5fSMartina Krasteva imx335->pad.flags = MEDIA_PAD_FL_SOURCE; 1049*45d19b5fSMartina Krasteva ret = media_entity_pads_init(&imx335->sd.entity, 1, &imx335->pad); 1050*45d19b5fSMartina Krasteva if (ret) { 1051*45d19b5fSMartina Krasteva dev_err(imx335->dev, "failed to init entity pads: %d", ret); 1052*45d19b5fSMartina Krasteva goto error_handler_free; 1053*45d19b5fSMartina Krasteva } 1054*45d19b5fSMartina Krasteva 1055*45d19b5fSMartina Krasteva ret = v4l2_async_register_subdev_sensor(&imx335->sd); 1056*45d19b5fSMartina Krasteva if (ret < 0) { 1057*45d19b5fSMartina Krasteva dev_err(imx335->dev, 1058*45d19b5fSMartina Krasteva "failed to register async subdev: %d", ret); 1059*45d19b5fSMartina Krasteva goto error_media_entity; 1060*45d19b5fSMartina Krasteva } 1061*45d19b5fSMartina Krasteva 1062*45d19b5fSMartina Krasteva pm_runtime_set_active(imx335->dev); 1063*45d19b5fSMartina Krasteva pm_runtime_enable(imx335->dev); 1064*45d19b5fSMartina Krasteva pm_runtime_idle(imx335->dev); 1065*45d19b5fSMartina Krasteva 1066*45d19b5fSMartina Krasteva return 0; 1067*45d19b5fSMartina Krasteva 1068*45d19b5fSMartina Krasteva error_media_entity: 1069*45d19b5fSMartina Krasteva media_entity_cleanup(&imx335->sd.entity); 1070*45d19b5fSMartina Krasteva error_handler_free: 1071*45d19b5fSMartina Krasteva v4l2_ctrl_handler_free(imx335->sd.ctrl_handler); 1072*45d19b5fSMartina Krasteva error_power_off: 1073*45d19b5fSMartina Krasteva imx335_power_off(imx335->dev); 1074*45d19b5fSMartina Krasteva error_mutex_destroy: 1075*45d19b5fSMartina Krasteva mutex_destroy(&imx335->mutex); 1076*45d19b5fSMartina Krasteva 1077*45d19b5fSMartina Krasteva return ret; 1078*45d19b5fSMartina Krasteva } 1079*45d19b5fSMartina Krasteva 1080*45d19b5fSMartina Krasteva /** 1081*45d19b5fSMartina Krasteva * imx335_remove() - I2C client device unbinding 1082*45d19b5fSMartina Krasteva * @client: pointer to I2C client device 1083*45d19b5fSMartina Krasteva * 1084*45d19b5fSMartina Krasteva * Return: 0 if successful, error code otherwise. 1085*45d19b5fSMartina Krasteva */ 1086*45d19b5fSMartina Krasteva static int imx335_remove(struct i2c_client *client) 1087*45d19b5fSMartina Krasteva { 1088*45d19b5fSMartina Krasteva struct v4l2_subdev *sd = i2c_get_clientdata(client); 1089*45d19b5fSMartina Krasteva struct imx335 *imx335 = to_imx335(sd); 1090*45d19b5fSMartina Krasteva 1091*45d19b5fSMartina Krasteva v4l2_async_unregister_subdev(sd); 1092*45d19b5fSMartina Krasteva media_entity_cleanup(&sd->entity); 1093*45d19b5fSMartina Krasteva v4l2_ctrl_handler_free(sd->ctrl_handler); 1094*45d19b5fSMartina Krasteva 1095*45d19b5fSMartina Krasteva pm_runtime_disable(&client->dev); 1096*45d19b5fSMartina Krasteva if (!pm_runtime_status_suspended(&client->dev)) 1097*45d19b5fSMartina Krasteva imx335_power_off(&client->dev); 1098*45d19b5fSMartina Krasteva pm_runtime_set_suspended(&client->dev); 1099*45d19b5fSMartina Krasteva 1100*45d19b5fSMartina Krasteva mutex_destroy(&imx335->mutex); 1101*45d19b5fSMartina Krasteva 1102*45d19b5fSMartina Krasteva return 0; 1103*45d19b5fSMartina Krasteva } 1104*45d19b5fSMartina Krasteva 1105*45d19b5fSMartina Krasteva static const struct dev_pm_ops imx335_pm_ops = { 1106*45d19b5fSMartina Krasteva SET_RUNTIME_PM_OPS(imx335_power_off, imx335_power_on, NULL) 1107*45d19b5fSMartina Krasteva }; 1108*45d19b5fSMartina Krasteva 1109*45d19b5fSMartina Krasteva static const struct of_device_id imx335_of_match[] = { 1110*45d19b5fSMartina Krasteva { .compatible = "sony,imx335" }, 1111*45d19b5fSMartina Krasteva { } 1112*45d19b5fSMartina Krasteva }; 1113*45d19b5fSMartina Krasteva 1114*45d19b5fSMartina Krasteva MODULE_DEVICE_TABLE(of, imx335_of_match); 1115*45d19b5fSMartina Krasteva 1116*45d19b5fSMartina Krasteva static struct i2c_driver imx335_driver = { 1117*45d19b5fSMartina Krasteva .probe_new = imx335_probe, 1118*45d19b5fSMartina Krasteva .remove = imx335_remove, 1119*45d19b5fSMartina Krasteva .driver = { 1120*45d19b5fSMartina Krasteva .name = "imx335", 1121*45d19b5fSMartina Krasteva .pm = &imx335_pm_ops, 1122*45d19b5fSMartina Krasteva .of_match_table = imx335_of_match, 1123*45d19b5fSMartina Krasteva }, 1124*45d19b5fSMartina Krasteva }; 1125*45d19b5fSMartina Krasteva 1126*45d19b5fSMartina Krasteva module_i2c_driver(imx335_driver); 1127*45d19b5fSMartina Krasteva 1128*45d19b5fSMartina Krasteva MODULE_DESCRIPTION("Sony imx335 sensor driver"); 1129*45d19b5fSMartina Krasteva MODULE_LICENSE("GPL"); 1130