drivers/media/i2c/ov5670.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 // Copyright (c) 2017 Intel Corporation.
   3
   4 #include <asm/unaligned.h>
   5 #include <linux/acpi.h>
   6 #include <linux/clk.h>
   7 #include <linux/delay.h>
   8 #include <linux/gpio/consumer.h>
   9 #include <linux/i2c.h>
  10 #include <linux/mod_devicetable.h>
  11 #include <linux/module.h>
  12 #include <linux/of.h>
  13 #include <linux/pm_runtime.h>
  14 #include <linux/regulator/consumer.h>
  15 #include <media/v4l2-ctrls.h>
  16 #include <media/v4l2-device.h>
  17 #include <media/v4l2-event.h>
  18 #include <media/v4l2-fwnode.h>
  19
  20 #define OV5670_XVCLK_FREQ               19200000
  21
  22 #define OV5670_REG_CHIP_ID              0x300a
  23 #define OV5670_CHIP_ID                  0x005670
  24
  25 #define OV5670_REG_MODE_SELECT          0x0100
  26 #define OV5670_MODE_STANDBY             0x00
  27 #define OV5670_MODE_STREAMING           0x01
  28
  29 #define OV5670_REG_SOFTWARE_RST         0x0103
  30 #define OV5670_SOFTWARE_RST             0x01
  31
  32 #define OV5670_MIPI_SC_CTRL0_REG                0x3018
  33 #define OV5670_MIPI_SC_CTRL0_LANES(v)           ((((v) - 1) << 5) & \
  34                                                  GENMASK(7, 5))
  35 #define OV5670_MIPI_SC_CTRL0_MIPI_EN            BIT(4)
  36 #define OV5670_MIPI_SC_CTRL0_RESERVED           BIT(1)
  37
  38 /* vertical-timings from sensor */
  39 #define OV5670_REG_VTS                  0x380e
  40 #define OV5670_VTS_30FPS                0x0808 /* default for 30 fps */
  41 #define OV5670_VTS_MAX                  0xffff
  42
  43 /* horizontal-timings from sensor */
  44 #define OV5670_REG_HTS                  0x380c
  45
  46 /*
  47  * Pixels-per-line(PPL) = Time-per-line * pixel-rate
  48  * In OV5670, Time-per-line = HTS/SCLK.
  49  * HTS is fixed for all resolutions, not recommended to change.
  50  */
  51 #define OV5670_FIXED_PPL                2724    /* Pixels per line */
  52
  53 /* Exposure controls from sensor */
  54 #define OV5670_REG_EXPOSURE             0x3500
  55 #define OV5670_EXPOSURE_MIN             4
  56 #define OV5670_EXPOSURE_STEP            1
  57
  58 /* Analog gain controls from sensor */
  59 #define OV5670_REG_ANALOG_GAIN          0x3508
  60 #define ANALOG_GAIN_MIN                 0
  61 #define ANALOG_GAIN_MAX                 8191
  62 #define ANALOG_GAIN_STEP                1
  63 #define ANALOG_GAIN_DEFAULT             128
  64
  65 /* Digital gain controls from sensor */
  66 #define OV5670_REG_R_DGTL_GAIN          0x5032
  67 #define OV5670_REG_G_DGTL_GAIN          0x5034
  68 #define OV5670_REG_B_DGTL_GAIN          0x5036
  69 #define OV5670_DGTL_GAIN_MIN            0
  70 #define OV5670_DGTL_GAIN_MAX            4095
  71 #define OV5670_DGTL_GAIN_STEP           1
  72 #define OV5670_DGTL_GAIN_DEFAULT        1024
  73
  74 /* Test Pattern Control */
  75 #define OV5670_REG_TEST_PATTERN         0x4303
  76 #define OV5670_TEST_PATTERN_ENABLE      BIT(3)
  77 #define OV5670_REG_TEST_PATTERN_CTRL    0x4320
  78
  79 #define OV5670_REG_VALUE_08BIT          1
  80 #define OV5670_REG_VALUE_16BIT          2
  81 #define OV5670_REG_VALUE_24BIT          3
  82
  83 /* Pixel Array */
  84 #define OV5670_NATIVE_WIDTH             2624
  85 #define OV5670_NATIVE_HEIGHT            1980
  86
  87 /* Initial number of frames to skip to avoid possible garbage */
  88 #define OV5670_NUM_OF_SKIP_FRAMES       2
  89
  90 struct ov5670_reg {
  91         u16 address;
  92         u8 val;
  93 };
  94
  95 struct ov5670_reg_list {
  96         u32 num_of_regs;
  97         const struct ov5670_reg *regs;
  98 };
  99
 100 struct ov5670_link_freq_config {
 101         const struct ov5670_reg_list reg_list;
 102 };
 103
 104 static const char * const ov5670_supply_names[] = {
 105         "avdd",         /* Analog power */
 106         "dvdd",         /* Digital power */
 107         "dovdd",        /* Digital output power */
 108 };
 109
 110 #define OV5670_NUM_SUPPLIES ARRAY_SIZE(ov5670_supply_names)
 111
 112 struct ov5670_mode {
 113         /* Frame width in pixels */
 114         u32 width;
 115
 116         /* Frame height in pixels */
 117         u32 height;
 118
 119         /* Default vertical timining size */
 120         u32 vts_def;
 121
 122         /* Min vertical timining size */
 123         u32 vts_min;
 124
 125         /* Link frequency needed for this resolution */
 126         u32 link_freq_index;
 127
 128         /* Analog crop rectangle */
 129         const struct v4l2_rect *analog_crop;
 130
 131         /* Sensor register settings for this resolution */
 132         const struct ov5670_reg_list reg_list;
 133 };
 134
 135 /*
 136  * All the modes supported by the driver are obtained by subsampling the
 137  * full pixel array. The below values are reflected in registers from
 138  * 0x3800-0x3807 in the modes register-value tables.
 139  */
 140 static const struct v4l2_rect ov5670_analog_crop = {
 141         .left   = 12,
 142         .top    = 4,
 143         .width  = 2600,
 144         .height = 1952,
 145 };
 146
 147 static const struct ov5670_reg mipi_data_rate_840mbps[] = {
 148         {0x0300, 0x04},
 149         {0x0301, 0x00},
 150         {0x0302, 0x84},
 151         {0x0303, 0x00},
 152         {0x0304, 0x03},
 153         {0x0305, 0x01},
 154         {0x0306, 0x01},
 155         {0x030a, 0x00},
 156         {0x030b, 0x00},
 157         {0x030c, 0x00},
 158         {0x030d, 0x26},
 159         {0x030e, 0x00},
 160         {0x030f, 0x06},
 161         {0x0312, 0x01},
 162         {0x3031, 0x0a},
 163 };
 164
 165 static const struct ov5670_reg mode_2592x1944_regs[] = {
 166         {0x3000, 0x00},
 167         {0x3002, 0x21},
 168         {0x3005, 0xf0},
 169         {0x3007, 0x00},
 170         {0x3015, 0x0f},
 171         {0x301a, 0xf0},
 172         {0x301b, 0xf0},
 173         {0x301c, 0xf0},
 174         {0x301d, 0xf0},
 175         {0x301e, 0xf0},
 176         {0x3030, 0x00},
 177         {0x3031, 0x0a},
 178         {0x303c, 0xff},
 179         {0x303e, 0xff},
 180         {0x3040, 0xf0},
 181         {0x3041, 0x00},
 182         {0x3042, 0xf0},
 183         {0x3106, 0x11},
 184         {0x3500, 0x00},
 185         {0x3501, 0x80},
 186         {0x3502, 0x00},
 187         {0x3503, 0x04},
 188         {0x3504, 0x03},
 189         {0x3505, 0x83},
 190         {0x3508, 0x04},
 191         {0x3509, 0x00},
 192         {0x350e, 0x04},
 193         {0x350f, 0x00},
 194         {0x3510, 0x00},
 195         {0x3511, 0x02},
 196         {0x3512, 0x00},
 197         {0x3601, 0xc8},
 198         {0x3610, 0x88},
 199         {0x3612, 0x48},
 200         {0x3614, 0x5b},
 201         {0x3615, 0x96},
 202         {0x3621, 0xd0},
 203         {0x3622, 0x00},
 204         {0x3623, 0x00},
 205         {0x3633, 0x13},
 206         {0x3634, 0x13},
 207         {0x3635, 0x13},
 208         {0x3636, 0x13},
 209         {0x3645, 0x13},
 210         {0x3646, 0x82},
 211         {0x3650, 0x00},
 212         {0x3652, 0xff},
 213         {0x3655, 0x20},
 214         {0x3656, 0xff},
 215         {0x365a, 0xff},
 216         {0x365e, 0xff},
 217         {0x3668, 0x00},
 218         {0x366a, 0x07},
 219         {0x366e, 0x10},
 220         {0x366d, 0x00},
 221         {0x366f, 0x80},
 222         {0x3700, 0x28},
 223         {0x3701, 0x10},
 224         {0x3702, 0x3a},
 225         {0x3703, 0x19},
 226         {0x3704, 0x10},
 227         {0x3705, 0x00},
 228         {0x3706, 0x66},
 229         {0x3707, 0x08},
 230         {0x3708, 0x34},
 231         {0x3709, 0x40},
 232         {0x370a, 0x01},
 233         {0x370b, 0x1b},
 234         {0x3714, 0x24},
 235         {0x371a, 0x3e},
 236         {0x3733, 0x00},
 237         {0x3734, 0x00},
 238         {0x373a, 0x05},
 239         {0x373b, 0x06},
 240         {0x373c, 0x0a},
 241         {0x373f, 0xa0},
 242         {0x3755, 0x00},
 243         {0x3758, 0x00},
 244         {0x375b, 0x0e},
 245         {0x3766, 0x5f},
 246         {0x3768, 0x00},
 247         {0x3769, 0x22},
 248         {0x3773, 0x08},
 249         {0x3774, 0x1f},
 250         {0x3776, 0x06},
 251         {0x37a0, 0x88},
 252         {0x37a1, 0x5c},
 253         {0x37a7, 0x88},
 254         {0x37a8, 0x70},
 255         {0x37aa, 0x88},
 256         {0x37ab, 0x48},
 257         {0x37b3, 0x66},
 258         {0x37c2, 0x04},
 259         {0x37c5, 0x00},
 260         {0x37c8, 0x00},
 261         {0x3800, 0x00},
 262         {0x3801, 0x0c},
 263         {0x3802, 0x00},
 264         {0x3803, 0x04},
 265         {0x3804, 0x0a},
 266         {0x3805, 0x33},
 267         {0x3806, 0x07},
 268         {0x3807, 0xa3},
 269         {0x3808, 0x0a},
 270         {0x3809, 0x20},
 271         {0x380a, 0x07},
 272         {0x380b, 0x98},
 273         {0x380c, 0x06},
 274         {0x380d, 0x90},
 275         {0x380e, 0x08},
 276         {0x380f, 0x08},
 277         {0x3811, 0x04},
 278         {0x3813, 0x02},
 279         {0x3814, 0x01},
 280         {0x3815, 0x01},
 281         {0x3816, 0x00},
 282         {0x3817, 0x00},
 283         {0x3818, 0x00},
 284         {0x3819, 0x00},
 285         {0x3820, 0x84},
 286         {0x3821, 0x46},
 287         {0x3822, 0x48},
 288         {0x3826, 0x00},
 289         {0x3827, 0x08},
 290         {0x382a, 0x01},
 291         {0x382b, 0x01},
 292         {0x3830, 0x08},
 293         {0x3836, 0x02},
 294         {0x3837, 0x00},
 295         {0x3838, 0x10},
 296         {0x3841, 0xff},
 297         {0x3846, 0x48},
 298         {0x3861, 0x00},
 299         {0x3862, 0x04},
 300         {0x3863, 0x06},
 301         {0x3a11, 0x01},
 302         {0x3a12, 0x78},
 303         {0x3b00, 0x00},
 304         {0x3b02, 0x00},
 305         {0x3b03, 0x00},
 306         {0x3b04, 0x00},
 307         {0x3b05, 0x00},
 308         {0x3c00, 0x89},
 309         {0x3c01, 0xab},
 310         {0x3c02, 0x01},
 311         {0x3c03, 0x00},
 312         {0x3c04, 0x00},
 313         {0x3c05, 0x03},
 314         {0x3c06, 0x00},
 315         {0x3c07, 0x05},
 316         {0x3c0c, 0x00},
 317         {0x3c0d, 0x00},
 318         {0x3c0e, 0x00},
 319         {0x3c0f, 0x00},
 320         {0x3c40, 0x00},
 321         {0x3c41, 0xa3},
 322         {0x3c43, 0x7d},
 323         {0x3c45, 0xd7},
 324         {0x3c47, 0xfc},
 325         {0x3c50, 0x05},
 326         {0x3c52, 0xaa},
 327         {0x3c54, 0x71},
 328         {0x3c56, 0x80},
 329         {0x3d85, 0x17},
 330         {0x3f03, 0x00},
 331         {0x3f0a, 0x00},
 332         {0x3f0b, 0x00},
 333         {0x4001, 0x60},
 334         {0x4009, 0x0d},
 335         {0x4020, 0x00},
 336         {0x4021, 0x00},
 337         {0x4022, 0x00},
 338         {0x4023, 0x00},
 339         {0x4024, 0x00},
 340         {0x4025, 0x00},
 341         {0x4026, 0x00},
 342         {0x4027, 0x00},
 343         {0x4028, 0x00},
 344         {0x4029, 0x00},
 345         {0x402a, 0x00},
 346         {0x402b, 0x00},
 347         {0x402c, 0x00},
 348         {0x402d, 0x00},
 349         {0x402e, 0x00},
 350         {0x402f, 0x00},
 351         {0x4040, 0x00},
 352         {0x4041, 0x03},
 353         {0x4042, 0x00},
 354         {0x4043, 0x7A},
 355         {0x4044, 0x00},
 356         {0x4045, 0x7A},
 357         {0x4046, 0x00},
 358         {0x4047, 0x7A},
 359         {0x4048, 0x00},
 360         {0x4049, 0x7A},
 361         {0x4307, 0x30},
 362         {0x4500, 0x58},
 363         {0x4501, 0x04},
 364         {0x4502, 0x40},
 365         {0x4503, 0x10},
 366         {0x4508, 0xaa},
 367         {0x4509, 0xaa},
 368         {0x450a, 0x00},
 369         {0x450b, 0x00},
 370         {0x4600, 0x01},
 371         {0x4601, 0x03},
 372         {0x4700, 0xa4},
 373         {0x4800, 0x4c},
 374         {0x4816, 0x53},
 375         {0x481f, 0x40},
 376         {0x4837, 0x13},
 377         {0x5000, 0x56},
 378         {0x5001, 0x01},
 379         {0x5002, 0x28},
 380         {0x5004, 0x0c},
 381         {0x5006, 0x0c},
 382         {0x5007, 0xe0},
 383         {0x5008, 0x01},
 384         {0x5009, 0xb0},
 385         {0x5901, 0x00},
 386         {0x5a01, 0x00},
 387         {0x5a03, 0x00},
 388         {0x5a04, 0x0c},
 389         {0x5a05, 0xe0},
 390         {0x5a06, 0x09},
 391         {0x5a07, 0xb0},
 392         {0x5a08, 0x06},
 393         {0x5e00, 0x00},
 394         {0x3734, 0x40},
 395         {0x5b00, 0x01},
 396         {0x5b01, 0x10},
 397         {0x5b02, 0x01},
 398         {0x5b03, 0xdb},
 399         {0x3d8c, 0x71},
 400         {0x3d8d, 0xea},
 401         {0x4017, 0x08},
 402         {0x3618, 0x2a},
 403         {0x5780, 0x3e},
 404         {0x5781, 0x0f},
 405         {0x5782, 0x44},
 406         {0x5783, 0x02},
 407         {0x5784, 0x01},
 408         {0x5785, 0x01},
 409         {0x5786, 0x00},
 410         {0x5787, 0x04},
 411         {0x5788, 0x02},
 412         {0x5789, 0x0f},
 413         {0x578a, 0xfd},
 414         {0x578b, 0xf5},
 415         {0x578c, 0xf5},
 416         {0x578d, 0x03},
 417         {0x578e, 0x08},
 418         {0x578f, 0x0c},
 419         {0x5790, 0x08},
 420         {0x5791, 0x06},
 421         {0x5792, 0x00},
 422         {0x5793, 0x52},
 423         {0x5794, 0xa3},
 424         {0x3503, 0x00},
 425         {0x5045, 0x05},
 426         {0x4003, 0x40},
 427         {0x5048, 0x40}
 428 };
 429
 430 static const struct ov5670_reg mode_1296x972_regs[] = {
 431         {0x3000, 0x00},
 432         {0x3002, 0x21},
 433         {0x3005, 0xf0},
 434         {0x3007, 0x00},
 435         {0x3015, 0x0f},
 436         {0x301a, 0xf0},
 437         {0x301b, 0xf0},
 438         {0x301c, 0xf0},
 439         {0x301d, 0xf0},
 440         {0x301e, 0xf0},
 441         {0x3030, 0x00},
 442         {0x3031, 0x0a},
 443         {0x303c, 0xff},
 444         {0x303e, 0xff},
 445         {0x3040, 0xf0},
 446         {0x3041, 0x00},
 447         {0x3042, 0xf0},
 448         {0x3106, 0x11},
 449         {0x3500, 0x00},
 450         {0x3501, 0x80},
 451         {0x3502, 0x00},
 452         {0x3503, 0x04},
 453         {0x3504, 0x03},
 454         {0x3505, 0x83},
 455         {0x3508, 0x07},
 456         {0x3509, 0x80},
 457         {0x350e, 0x04},
 458         {0x350f, 0x00},
 459         {0x3510, 0x00},
 460         {0x3511, 0x02},
 461         {0x3512, 0x00},
 462         {0x3601, 0xc8},
 463         {0x3610, 0x88},
 464         {0x3612, 0x48},
 465         {0x3614, 0x5b},
 466         {0x3615, 0x96},
 467         {0x3621, 0xd0},
 468         {0x3622, 0x00},
 469         {0x3623, 0x00},
 470         {0x3633, 0x13},
 471         {0x3634, 0x13},
 472         {0x3635, 0x13},
 473         {0x3636, 0x13},
 474         {0x3645, 0x13},
 475         {0x3646, 0x82},
 476         {0x3650, 0x00},
 477         {0x3652, 0xff},
 478         {0x3655, 0x20},
 479         {0x3656, 0xff},
 480         {0x365a, 0xff},
 481         {0x365e, 0xff},
 482         {0x3668, 0x00},
 483         {0x366a, 0x07},
 484         {0x366e, 0x08},
 485         {0x366d, 0x00},
 486         {0x366f, 0x80},
 487         {0x3700, 0x28},
 488         {0x3701, 0x10},
 489         {0x3702, 0x3a},
 490         {0x3703, 0x19},
 491         {0x3704, 0x10},
 492         {0x3705, 0x00},
 493         {0x3706, 0x66},
 494         {0x3707, 0x08},
 495         {0x3708, 0x34},
 496         {0x3709, 0x40},
 497         {0x370a, 0x01},
 498         {0x370b, 0x1b},
 499         {0x3714, 0x24},
 500         {0x371a, 0x3e},
 501         {0x3733, 0x00},
 502         {0x3734, 0x00},
 503         {0x373a, 0x05},
 504         {0x373b, 0x06},
 505         {0x373c, 0x0a},
 506         {0x373f, 0xa0},
 507         {0x3755, 0x00},
 508         {0x3758, 0x00},
 509         {0x375b, 0x0e},
 510         {0x3766, 0x5f},
 511         {0x3768, 0x00},
 512         {0x3769, 0x22},
 513         {0x3773, 0x08},
 514         {0x3774, 0x1f},
 515         {0x3776, 0x06},
 516         {0x37a0, 0x88},
 517         {0x37a1, 0x5c},
 518         {0x37a7, 0x88},
 519         {0x37a8, 0x70},
 520         {0x37aa, 0x88},
 521         {0x37ab, 0x48},
 522         {0x37b3, 0x66},
 523         {0x37c2, 0x04},
 524         {0x37c5, 0x00},
 525         {0x37c8, 0x00},
 526         {0x3800, 0x00},
 527         {0x3801, 0x0c},
 528         {0x3802, 0x00},
 529         {0x3803, 0x04},
 530         {0x3804, 0x0a},
 531         {0x3805, 0x33},
 532         {0x3806, 0x07},
 533         {0x3807, 0xa3},
 534         {0x3808, 0x05},
 535         {0x3809, 0x10},
 536         {0x380a, 0x03},
 537         {0x380b, 0xcc},
 538         {0x380c, 0x06},
 539         {0x380d, 0x90},
 540         {0x380e, 0x08},
 541         {0x380f, 0x08},
 542         {0x3811, 0x04},
 543         {0x3813, 0x04},
 544         {0x3814, 0x03},
 545         {0x3815, 0x01},
 546         {0x3816, 0x00},
 547         {0x3817, 0x00},
 548         {0x3818, 0x00},
 549         {0x3819, 0x00},
 550         {0x3820, 0x94},
 551         {0x3821, 0x47},
 552         {0x3822, 0x48},
 553         {0x3826, 0x00},
 554         {0x3827, 0x08},
 555         {0x382a, 0x03},
 556         {0x382b, 0x01},
 557         {0x3830, 0x08},
 558         {0x3836, 0x02},
 559         {0x3837, 0x00},
 560         {0x3838, 0x10},
 561         {0x3841, 0xff},
 562         {0x3846, 0x48},
 563         {0x3861, 0x00},
 564         {0x3862, 0x04},
 565         {0x3863, 0x06},
 566         {0x3a11, 0x01},
 567         {0x3a12, 0x78},
 568         {0x3b00, 0x00},
 569         {0x3b02, 0x00},
 570         {0x3b03, 0x00},
 571         {0x3b04, 0x00},
 572         {0x3b05, 0x00},
 573         {0x3c00, 0x89},
 574         {0x3c01, 0xab},
 575         {0x3c02, 0x01},
 576         {0x3c03, 0x00},
 577         {0x3c04, 0x00},
 578         {0x3c05, 0x03},
 579         {0x3c06, 0x00},
 580         {0x3c07, 0x05},
 581         {0x3c0c, 0x00},
 582         {0x3c0d, 0x00},
 583         {0x3c0e, 0x00},
 584         {0x3c0f, 0x00},
 585         {0x3c40, 0x00},
 586         {0x3c41, 0xa3},
 587         {0x3c43, 0x7d},
 588         {0x3c45, 0xd7},
 589         {0x3c47, 0xfc},
 590         {0x3c50, 0x05},
 591         {0x3c52, 0xaa},
 592         {0x3c54, 0x71},
 593         {0x3c56, 0x80},
 594         {0x3d85, 0x17},
 595         {0x3f03, 0x00},
 596         {0x3f0a, 0x00},
 597         {0x3f0b, 0x00},
 598         {0x4001, 0x60},
 599         {0x4009, 0x05},
 600         {0x4020, 0x00},
 601         {0x4021, 0x00},
 602         {0x4022, 0x00},
 603         {0x4023, 0x00},
 604         {0x4024, 0x00},
 605         {0x4025, 0x00},
 606         {0x4026, 0x00},
 607         {0x4027, 0x00},
 608         {0x4028, 0x00},
 609         {0x4029, 0x00},
 610         {0x402a, 0x00},
 611         {0x402b, 0x00},
 612         {0x402c, 0x00},
 613         {0x402d, 0x00},
 614         {0x402e, 0x00},
 615         {0x402f, 0x00},
 616         {0x4040, 0x00},
 617         {0x4041, 0x03},
 618         {0x4042, 0x00},
 619         {0x4043, 0x7A},
 620         {0x4044, 0x00},
 621         {0x4045, 0x7A},
 622         {0x4046, 0x00},
 623         {0x4047, 0x7A},
 624         {0x4048, 0x00},
 625         {0x4049, 0x7A},
 626         {0x4307, 0x30},
 627         {0x4500, 0x58},
 628         {0x4501, 0x04},
 629         {0x4502, 0x48},
 630         {0x4503, 0x10},
 631         {0x4508, 0x55},
 632         {0x4509, 0x55},
 633         {0x450a, 0x00},
 634         {0x450b, 0x00},
 635         {0x4600, 0x00},
 636         {0x4601, 0x81},
 637         {0x4700, 0xa4},
 638         {0x4800, 0x4c},
 639         {0x4816, 0x53},
 640         {0x481f, 0x40},
 641         {0x4837, 0x13},
 642         {0x5000, 0x56},
 643         {0x5001, 0x01},
 644         {0x5002, 0x28},
 645         {0x5004, 0x0c},
 646         {0x5006, 0x0c},
 647         {0x5007, 0xe0},
 648         {0x5008, 0x01},
 649         {0x5009, 0xb0},
 650         {0x5901, 0x00},
 651         {0x5a01, 0x00},
 652         {0x5a03, 0x00},
 653         {0x5a04, 0x0c},
 654         {0x5a05, 0xe0},
 655         {0x5a06, 0x09},
 656         {0x5a07, 0xb0},
 657         {0x5a08, 0x06},
 658         {0x5e00, 0x00},
 659         {0x3734, 0x40},
 660         {0x5b00, 0x01},
 661         {0x5b01, 0x10},
 662         {0x5b02, 0x01},
 663         {0x5b03, 0xdb},
 664         {0x3d8c, 0x71},
 665         {0x3d8d, 0xea},
 666         {0x4017, 0x10},
 667         {0x3618, 0x2a},
 668         {0x5780, 0x3e},
 669         {0x5781, 0x0f},
 670         {0x5782, 0x44},
 671         {0x5783, 0x02},
 672         {0x5784, 0x01},
 673         {0x5785, 0x01},
 674         {0x5786, 0x00},
 675         {0x5787, 0x04},
 676         {0x5788, 0x02},
 677         {0x5789, 0x0f},
 678         {0x578a, 0xfd},
 679         {0x578b, 0xf5},
 680         {0x578c, 0xf5},
 681         {0x578d, 0x03},
 682         {0x578e, 0x08},
 683         {0x578f, 0x0c},
 684         {0x5790, 0x08},
 685         {0x5791, 0x04},
 686         {0x5792, 0x00},
 687         {0x5793, 0x52},
 688         {0x5794, 0xa3},
 689         {0x3503, 0x00},
 690         {0x5045, 0x05},
 691         {0x4003, 0x40},
 692         {0x5048, 0x40}
 693 };
 694
 695 static const struct ov5670_reg mode_648x486_regs[] = {
 696         {0x3000, 0x00},
 697         {0x3002, 0x21},
 698         {0x3005, 0xf0},
 699         {0x3007, 0x00},
 700         {0x3015, 0x0f},
 701         {0x301a, 0xf0},
 702         {0x301b, 0xf0},
 703         {0x301c, 0xf0},
 704         {0x301d, 0xf0},
 705         {0x301e, 0xf0},
 706         {0x3030, 0x00},
 707         {0x3031, 0x0a},
 708         {0x303c, 0xff},
 709         {0x303e, 0xff},
 710         {0x3040, 0xf0},
 711         {0x3041, 0x00},
 712         {0x3042, 0xf0},
 713         {0x3106, 0x11},
 714         {0x3500, 0x00},
 715         {0x3501, 0x80},
 716         {0x3502, 0x00},
 717         {0x3503, 0x04},
 718         {0x3504, 0x03},
 719         {0x3505, 0x83},
 720         {0x3508, 0x04},
 721         {0x3509, 0x00},
 722         {0x350e, 0x04},
 723         {0x350f, 0x00},
 724         {0x3510, 0x00},
 725         {0x3511, 0x02},
 726         {0x3512, 0x00},
 727         {0x3601, 0xc8},
 728         {0x3610, 0x88},
 729         {0x3612, 0x48},
 730         {0x3614, 0x5b},
 731         {0x3615, 0x96},
 732         {0x3621, 0xd0},
 733         {0x3622, 0x00},
 734         {0x3623, 0x04},
 735         {0x3633, 0x13},
 736         {0x3634, 0x13},
 737         {0x3635, 0x13},
 738         {0x3636, 0x13},
 739         {0x3645, 0x13},
 740         {0x3646, 0x82},
 741         {0x3650, 0x00},
 742         {0x3652, 0xff},
 743         {0x3655, 0x20},
 744         {0x3656, 0xff},
 745         {0x365a, 0xff},
 746         {0x365e, 0xff},
 747         {0x3668, 0x00},
 748         {0x366a, 0x07},
 749         {0x366e, 0x08},
 750         {0x366d, 0x00},
 751         {0x366f, 0x80},
 752         {0x3700, 0x28},
 753         {0x3701, 0x10},
 754         {0x3702, 0x3a},
 755         {0x3703, 0x19},
 756         {0x3704, 0x10},
 757         {0x3705, 0x00},
 758         {0x3706, 0x66},
 759         {0x3707, 0x08},
 760         {0x3708, 0x34},
 761         {0x3709, 0x40},
 762         {0x370a, 0x01},
 763         {0x370b, 0x1b},
 764         {0x3714, 0x24},
 765         {0x371a, 0x3e},
 766         {0x3733, 0x00},
 767         {0x3734, 0x00},
 768         {0x373a, 0x05},
 769         {0x373b, 0x06},
 770         {0x373c, 0x0a},
 771         {0x373f, 0xa0},
 772         {0x3755, 0x00},
 773         {0x3758, 0x00},
 774         {0x375b, 0x0e},
 775         {0x3766, 0x5f},
 776         {0x3768, 0x00},
 777         {0x3769, 0x22},
 778         {0x3773, 0x08},
 779         {0x3774, 0x1f},
 780         {0x3776, 0x06},
 781         {0x37a0, 0x88},
 782         {0x37a1, 0x5c},
 783         {0x37a7, 0x88},
 784         {0x37a8, 0x70},
 785         {0x37aa, 0x88},
 786         {0x37ab, 0x48},
 787         {0x37b3, 0x66},
 788         {0x37c2, 0x04},
 789         {0x37c5, 0x00},
 790         {0x37c8, 0x00},
 791         {0x3800, 0x00},
 792         {0x3801, 0x0c},
 793         {0x3802, 0x00},
 794         {0x3803, 0x04},
 795         {0x3804, 0x0a},
 796         {0x3805, 0x33},
 797         {0x3806, 0x07},
 798         {0x3807, 0xa3},
 799         {0x3808, 0x02},
 800         {0x3809, 0x88},
 801         {0x380a, 0x01},
 802         {0x380b, 0xe6},
 803         {0x380c, 0x06},
 804         {0x380d, 0x90},
 805         {0x380e, 0x08},
 806         {0x380f, 0x08},
 807         {0x3811, 0x04},
 808         {0x3813, 0x02},
 809         {0x3814, 0x07},
 810         {0x3815, 0x01},
 811         {0x3816, 0x00},
 812         {0x3817, 0x00},
 813         {0x3818, 0x00},
 814         {0x3819, 0x00},
 815         {0x3820, 0x94},
 816         {0x3821, 0xc6},
 817         {0x3822, 0x48},
 818         {0x3826, 0x00},
 819         {0x3827, 0x08},
 820         {0x382a, 0x07},
 821         {0x382b, 0x01},
 822         {0x3830, 0x08},
 823         {0x3836, 0x02},
 824         {0x3837, 0x00},
 825         {0x3838, 0x10},
 826         {0x3841, 0xff},
 827         {0x3846, 0x48},
 828         {0x3861, 0x00},
 829         {0x3862, 0x04},
 830         {0x3863, 0x06},
 831         {0x3a11, 0x01},
 832         {0x3a12, 0x78},
 833         {0x3b00, 0x00},
 834         {0x3b02, 0x00},
 835         {0x3b03, 0x00},
 836         {0x3b04, 0x00},
 837         {0x3b05, 0x00},
 838         {0x3c00, 0x89},
 839         {0x3c01, 0xab},
 840         {0x3c02, 0x01},
 841         {0x3c03, 0x00},
 842         {0x3c04, 0x00},
 843         {0x3c05, 0x03},
 844         {0x3c06, 0x00},
 845         {0x3c07, 0x05},
 846         {0x3c0c, 0x00},
 847         {0x3c0d, 0x00},
 848         {0x3c0e, 0x00},
 849         {0x3c0f, 0x00},
 850         {0x3c40, 0x00},
 851         {0x3c41, 0xa3},
 852         {0x3c43, 0x7d},
 853         {0x3c45, 0xd7},
 854         {0x3c47, 0xfc},
 855         {0x3c50, 0x05},
 856         {0x3c52, 0xaa},
 857         {0x3c54, 0x71},
 858         {0x3c56, 0x80},
 859         {0x3d85, 0x17},
 860         {0x3f03, 0x00},
 861         {0x3f0a, 0x00},
 862         {0x3f0b, 0x00},
 863         {0x4001, 0x60},
 864         {0x4009, 0x05},
 865         {0x4020, 0x00},
 866         {0x4021, 0x00},
 867         {0x4022, 0x00},
 868         {0x4023, 0x00},
 869         {0x4024, 0x00},
 870         {0x4025, 0x00},
 871         {0x4026, 0x00},
 872         {0x4027, 0x00},
 873         {0x4028, 0x00},
 874         {0x4029, 0x00},
 875         {0x402a, 0x00},
 876         {0x402b, 0x00},
 877         {0x402c, 0x00},
 878         {0x402d, 0x00},
 879         {0x402e, 0x00},
 880         {0x402f, 0x00},
 881         {0x4040, 0x00},
 882         {0x4041, 0x03},
 883         {0x4042, 0x00},
 884         {0x4043, 0x7A},
 885         {0x4044, 0x00},
 886         {0x4045, 0x7A},
 887         {0x4046, 0x00},
 888         {0x4047, 0x7A},
 889         {0x4048, 0x00},
 890         {0x4049, 0x7A},
 891         {0x4307, 0x30},
 892         {0x4500, 0x58},
 893         {0x4501, 0x04},
 894         {0x4502, 0x40},
 895         {0x4503, 0x10},
 896         {0x4508, 0x55},
 897         {0x4509, 0x55},
 898         {0x450a, 0x02},
 899         {0x450b, 0x00},
 900         {0x4600, 0x00},
 901         {0x4601, 0x40},
 902         {0x4700, 0xa4},
 903         {0x4800, 0x4c},
 904         {0x4816, 0x53},
 905         {0x481f, 0x40},
 906         {0x4837, 0x13},
 907         {0x5000, 0x56},
 908         {0x5001, 0x01},
 909         {0x5002, 0x28},
 910         {0x5004, 0x0c},
 911         {0x5006, 0x0c},
 912         {0x5007, 0xe0},
 913         {0x5008, 0x01},
 914         {0x5009, 0xb0},
 915         {0x5901, 0x00},
 916         {0x5a01, 0x00},
 917         {0x5a03, 0x00},
 918         {0x5a04, 0x0c},
 919         {0x5a05, 0xe0},
 920         {0x5a06, 0x09},
 921         {0x5a07, 0xb0},
 922         {0x5a08, 0x06},
 923         {0x5e00, 0x00},
 924         {0x3734, 0x40},
 925         {0x5b00, 0x01},
 926         {0x5b01, 0x10},
 927         {0x5b02, 0x01},
 928         {0x5b03, 0xdb},
 929         {0x3d8c, 0x71},
 930         {0x3d8d, 0xea},
 931         {0x4017, 0x10},
 932         {0x3618, 0x2a},
 933         {0x5780, 0x3e},
 934         {0x5781, 0x0f},
 935         {0x5782, 0x44},
 936         {0x5783, 0x02},
 937         {0x5784, 0x01},
 938         {0x5785, 0x01},
 939         {0x5786, 0x00},
 940         {0x5787, 0x04},
 941         {0x5788, 0x02},
 942         {0x5789, 0x0f},
 943         {0x578a, 0xfd},
 944         {0x578b, 0xf5},
 945         {0x578c, 0xf5},
 946         {0x578d, 0x03},
 947         {0x578e, 0x08},
 948         {0x578f, 0x0c},
 949         {0x5790, 0x08},
 950         {0x5791, 0x06},
 951         {0x5792, 0x00},
 952         {0x5793, 0x52},
 953         {0x5794, 0xa3},
 954         {0x3503, 0x00},
 955         {0x5045, 0x05},
 956         {0x4003, 0x40},
 957         {0x5048, 0x40}
 958 };
 959
 960 static const struct ov5670_reg mode_2560x1440_regs[] = {
 961         {0x3000, 0x00},
 962         {0x3002, 0x21},
 963         {0x3005, 0xf0},
 964         {0x3007, 0x00},
 965         {0x3015, 0x0f},
 966         {0x301a, 0xf0},
 967         {0x301b, 0xf0},
 968         {0x301c, 0xf0},
 969         {0x301d, 0xf0},
 970         {0x301e, 0xf0},
 971         {0x3030, 0x00},
 972         {0x3031, 0x0a},
 973         {0x303c, 0xff},
 974         {0x303e, 0xff},
 975         {0x3040, 0xf0},
 976         {0x3041, 0x00},
 977         {0x3042, 0xf0},
 978         {0x3106, 0x11},
 979         {0x3500, 0x00},
 980         {0x3501, 0x80},
 981         {0x3502, 0x00},
 982         {0x3503, 0x04},
 983         {0x3504, 0x03},
 984         {0x3505, 0x83},
 985         {0x3508, 0x04},
 986         {0x3509, 0x00},
 987         {0x350e, 0x04},
 988         {0x350f, 0x00},
 989         {0x3510, 0x00},
 990         {0x3511, 0x02},
 991         {0x3512, 0x00},
 992         {0x3601, 0xc8},
 993         {0x3610, 0x88},
 994         {0x3612, 0x48},
 995         {0x3614, 0x5b},
 996         {0x3615, 0x96},
 997         {0x3621, 0xd0},
 998         {0x3622, 0x00},
 999         {0x3623, 0x00},
1000         {0x3633, 0x13},
1001         {0x3634, 0x13},
1002         {0x3635, 0x13},
1003         {0x3636, 0x13},
1004         {0x3645, 0x13},
1005         {0x3646, 0x82},
1006         {0x3650, 0x00},
1007         {0x3652, 0xff},
1008         {0x3655, 0x20},
1009         {0x3656, 0xff},
1010         {0x365a, 0xff},
1011         {0x365e, 0xff},
1012         {0x3668, 0x00},
1013         {0x366a, 0x07},
1014         {0x366e, 0x10},
1015         {0x366d, 0x00},
1016         {0x366f, 0x80},
1017         {0x3700, 0x28},
1018         {0x3701, 0x10},
1019         {0x3702, 0x3a},
1020         {0x3703, 0x19},
1021         {0x3704, 0x10},
1022         {0x3705, 0x00},
1023         {0x3706, 0x66},
1024         {0x3707, 0x08},
1025         {0x3708, 0x34},
1026         {0x3709, 0x40},
1027         {0x370a, 0x01},
1028         {0x370b, 0x1b},
1029         {0x3714, 0x24},
1030         {0x371a, 0x3e},
1031         {0x3733, 0x00},
1032         {0x3734, 0x00},
1033         {0x373a, 0x05},
1034         {0x373b, 0x06},
1035         {0x373c, 0x0a},
1036         {0x373f, 0xa0},
1037         {0x3755, 0x00},
1038         {0x3758, 0x00},
1039         {0x375b, 0x0e},
1040         {0x3766, 0x5f},
1041         {0x3768, 0x00},
1042         {0x3769, 0x22},
1043         {0x3773, 0x08},
1044         {0x3774, 0x1f},
1045         {0x3776, 0x06},
1046         {0x37a0, 0x88},
1047         {0x37a1, 0x5c},
1048         {0x37a7, 0x88},
1049         {0x37a8, 0x70},
1050         {0x37aa, 0x88},
1051         {0x37ab, 0x48},
1052         {0x37b3, 0x66},
1053         {0x37c2, 0x04},
1054         {0x37c5, 0x00},
1055         {0x37c8, 0x00},
1056         {0x3800, 0x00},
1057         {0x3801, 0x0c},
1058         {0x3802, 0x00},
1059         {0x3803, 0x04},
1060         {0x3804, 0x0a},
1061         {0x3805, 0x33},
1062         {0x3806, 0x07},
1063         {0x3807, 0xa3},
1064         {0x3808, 0x0a},
1065         {0x3809, 0x00},
1066         {0x380a, 0x05},
1067         {0x380b, 0xa0},
1068         {0x380c, 0x06},
1069         {0x380d, 0x90},
1070         {0x380e, 0x08},
1071         {0x380f, 0x08},
1072         {0x3811, 0x04},
1073         {0x3813, 0x02},
1074         {0x3814, 0x01},
1075         {0x3815, 0x01},
1076         {0x3816, 0x00},
1077         {0x3817, 0x00},
1078         {0x3818, 0x00},
1079         {0x3819, 0x00},
1080         {0x3820, 0x84},
1081         {0x3821, 0x46},
1082         {0x3822, 0x48},
1083         {0x3826, 0x00},
1084         {0x3827, 0x08},
1085         {0x382a, 0x01},
1086         {0x382b, 0x01},
1087         {0x3830, 0x08},
1088         {0x3836, 0x02},
1089         {0x3837, 0x00},
1090         {0x3838, 0x10},
1091         {0x3841, 0xff},
1092         {0x3846, 0x48},
1093         {0x3861, 0x00},
1094         {0x3862, 0x04},
1095         {0x3863, 0x06},
1096         {0x3a11, 0x01},
1097         {0x3a12, 0x78},
1098         {0x3b00, 0x00},
1099         {0x3b02, 0x00},
1100         {0x3b03, 0x00},
1101         {0x3b04, 0x00},
1102         {0x3b05, 0x00},
1103         {0x3c00, 0x89},
1104         {0x3c01, 0xab},
1105         {0x3c02, 0x01},
1106         {0x3c03, 0x00},
1107         {0x3c04, 0x00},
1108         {0x3c05, 0x03},
1109         {0x3c06, 0x00},
1110         {0x3c07, 0x05},
1111         {0x3c0c, 0x00},
1112         {0x3c0d, 0x00},
1113         {0x3c0e, 0x00},
1114         {0x3c0f, 0x00},
1115         {0x3c40, 0x00},
1116         {0x3c41, 0xa3},
1117         {0x3c43, 0x7d},
1118         {0x3c45, 0xd7},
1119         {0x3c47, 0xfc},
1120         {0x3c50, 0x05},
1121         {0x3c52, 0xaa},
1122         {0x3c54, 0x71},
1123         {0x3c56, 0x80},
1124         {0x3d85, 0x17},
1125         {0x3f03, 0x00},
1126         {0x3f0a, 0x00},
1127         {0x3f0b, 0x00},
1128         {0x4001, 0x60},
1129         {0x4009, 0x0d},
1130         {0x4020, 0x00},
1131         {0x4021, 0x00},
1132         {0x4022, 0x00},
1133         {0x4023, 0x00},
1134         {0x4024, 0x00},
1135         {0x4025, 0x00},
1136         {0x4026, 0x00},
1137         {0x4027, 0x00},
1138         {0x4028, 0x00},
1139         {0x4029, 0x00},
1140         {0x402a, 0x00},
1141         {0x402b, 0x00},
1142         {0x402c, 0x00},
1143         {0x402d, 0x00},
1144         {0x402e, 0x00},
1145         {0x402f, 0x00},
1146         {0x4040, 0x00},
1147         {0x4041, 0x03},
1148         {0x4042, 0x00},
1149         {0x4043, 0x7A},
1150         {0x4044, 0x00},
1151         {0x4045, 0x7A},
1152         {0x4046, 0x00},
1153         {0x4047, 0x7A},
1154         {0x4048, 0x00},
1155         {0x4049, 0x7A},
1156         {0x4307, 0x30},
1157         {0x4500, 0x58},
1158         {0x4501, 0x04},
1159         {0x4502, 0x40},
1160         {0x4503, 0x10},
1161         {0x4508, 0xaa},
1162         {0x4509, 0xaa},
1163         {0x450a, 0x00},
1164         {0x450b, 0x00},
1165         {0x4600, 0x01},
1166         {0x4601, 0x00},
1167         {0x4700, 0xa4},
1168         {0x4800, 0x4c},
1169         {0x4816, 0x53},
1170         {0x481f, 0x40},
1171         {0x4837, 0x13},
1172         {0x5000, 0x56},
1173         {0x5001, 0x01},
1174         {0x5002, 0x28},
1175         {0x5004, 0x0c},
1176         {0x5006, 0x0c},
1177         {0x5007, 0xe0},
1178         {0x5008, 0x01},
1179         {0x5009, 0xb0},
1180         {0x5901, 0x00},
1181         {0x5a01, 0x00},
1182         {0x5a03, 0x00},
1183         {0x5a04, 0x0c},
1184         {0x5a05, 0xe0},
1185         {0x5a06, 0x09},
1186         {0x5a07, 0xb0},
1187         {0x5a08, 0x06},
1188         {0x5e00, 0x00},
1189         {0x3734, 0x40},
1190         {0x5b00, 0x01},
1191         {0x5b01, 0x10},
1192         {0x5b02, 0x01},
1193         {0x5b03, 0xdb},
1194         {0x3d8c, 0x71},
1195         {0x3d8d, 0xea},
1196         {0x4017, 0x08},
1197         {0x3618, 0x2a},
1198         {0x5780, 0x3e},
1199         {0x5781, 0x0f},
1200         {0x5782, 0x44},
1201         {0x5783, 0x02},
1202         {0x5784, 0x01},
1203         {0x5785, 0x01},
1204         {0x5786, 0x00},
1205         {0x5787, 0x04},
1206         {0x5788, 0x02},
1207         {0x5789, 0x0f},
1208         {0x578a, 0xfd},
1209         {0x578b, 0xf5},
1210         {0x578c, 0xf5},
1211         {0x578d, 0x03},
1212         {0x578e, 0x08},
1213         {0x578f, 0x0c},
1214         {0x5790, 0x08},
1215         {0x5791, 0x06},
1216         {0x5792, 0x00},
1217         {0x5793, 0x52},
1218         {0x5794, 0xa3},
1219         {0x5045, 0x05},
1220         {0x4003, 0x40},
1221         {0x5048, 0x40}
1222 };
1223
1224 static const struct ov5670_reg mode_1280x720_regs[] = {
1225         {0x3000, 0x00},
1226         {0x3002, 0x21},
1227         {0x3005, 0xf0},
1228         {0x3007, 0x00},
1229         {0x3015, 0x0f},
1230         {0x301a, 0xf0},
1231         {0x301b, 0xf0},
1232         {0x301c, 0xf0},
1233         {0x301d, 0xf0},
1234         {0x301e, 0xf0},
1235         {0x3030, 0x00},
1236         {0x3031, 0x0a},
1237         {0x303c, 0xff},
1238         {0x303e, 0xff},
1239         {0x3040, 0xf0},
1240         {0x3041, 0x00},
1241         {0x3042, 0xf0},
1242         {0x3106, 0x11},
1243         {0x3500, 0x00},
1244         {0x3501, 0x80},
1245         {0x3502, 0x00},
1246         {0x3503, 0x04},
1247         {0x3504, 0x03},
1248         {0x3505, 0x83},
1249         {0x3508, 0x04},
1250         {0x3509, 0x00},
1251         {0x350e, 0x04},
1252         {0x350f, 0x00},
1253         {0x3510, 0x00},
1254         {0x3511, 0x02},
1255         {0x3512, 0x00},
1256         {0x3601, 0xc8},
1257         {0x3610, 0x88},
1258         {0x3612, 0x48},
1259         {0x3614, 0x5b},
1260         {0x3615, 0x96},
1261         {0x3621, 0xd0},
1262         {0x3622, 0x00},
1263         {0x3623, 0x00},
1264         {0x3633, 0x13},
1265         {0x3634, 0x13},
1266         {0x3635, 0x13},
1267         {0x3636, 0x13},
1268         {0x3645, 0x13},
1269         {0x3646, 0x82},
1270         {0x3650, 0x00},
1271         {0x3652, 0xff},
1272         {0x3655, 0x20},
1273         {0x3656, 0xff},
1274         {0x365a, 0xff},
1275         {0x365e, 0xff},
1276         {0x3668, 0x00},
1277         {0x366a, 0x07},
1278         {0x366e, 0x08},
1279         {0x366d, 0x00},
1280         {0x366f, 0x80},
1281         {0x3700, 0x28},
1282         {0x3701, 0x10},
1283         {0x3702, 0x3a},
1284         {0x3703, 0x19},
1285         {0x3704, 0x10},
1286         {0x3705, 0x00},
1287         {0x3706, 0x66},
1288         {0x3707, 0x08},
1289         {0x3708, 0x34},
1290         {0x3709, 0x40},
1291         {0x370a, 0x01},
1292         {0x370b, 0x1b},
1293         {0x3714, 0x24},
1294         {0x371a, 0x3e},
1295         {0x3733, 0x00},
1296         {0x3734, 0x00},
1297         {0x373a, 0x05},
1298         {0x373b, 0x06},
1299         {0x373c, 0x0a},
1300         {0x373f, 0xa0},
1301         {0x3755, 0x00},
1302         {0x3758, 0x00},
1303         {0x375b, 0x0e},
1304         {0x3766, 0x5f},
1305         {0x3768, 0x00},
1306         {0x3769, 0x22},
1307         {0x3773, 0x08},
1308         {0x3774, 0x1f},
1309         {0x3776, 0x06},
1310         {0x37a0, 0x88},
1311         {0x37a1, 0x5c},
1312         {0x37a7, 0x88},
1313         {0x37a8, 0x70},
1314         {0x37aa, 0x88},
1315         {0x37ab, 0x48},
1316         {0x37b3, 0x66},
1317         {0x37c2, 0x04},
1318         {0x37c5, 0x00},
1319         {0x37c8, 0x00},
1320         {0x3800, 0x00},
1321         {0x3801, 0x0c},
1322         {0x3802, 0x00},
1323         {0x3803, 0x04},
1324         {0x3804, 0x0a},
1325         {0x3805, 0x33},
1326         {0x3806, 0x07},
1327         {0x3807, 0xa3},
1328         {0x3808, 0x05},
1329         {0x3809, 0x00},
1330         {0x380a, 0x02},
1331         {0x380b, 0xd0},
1332         {0x380c, 0x06},
1333         {0x380d, 0x90},
1334         {0x380e, 0x08},
1335         {0x380f, 0x08},
1336         {0x3811, 0x04},
1337         {0x3813, 0x02},
1338         {0x3814, 0x03},
1339         {0x3815, 0x01},
1340         {0x3816, 0x00},
1341         {0x3817, 0x00},
1342         {0x3818, 0x00},
1343         {0x3819, 0x00},
1344         {0x3820, 0x94},
1345         {0x3821, 0x47},
1346         {0x3822, 0x48},
1347         {0x3826, 0x00},
1348         {0x3827, 0x08},
1349         {0x382a, 0x03},
1350         {0x382b, 0x01},
1351         {0x3830, 0x08},
1352         {0x3836, 0x02},
1353         {0x3837, 0x00},
1354         {0x3838, 0x10},
1355         {0x3841, 0xff},
1356         {0x3846, 0x48},
1357         {0x3861, 0x00},
1358         {0x3862, 0x04},
1359         {0x3863, 0x06},
1360         {0x3a11, 0x01},
1361         {0x3a12, 0x78},
1362         {0x3b00, 0x00},
1363         {0x3b02, 0x00},
1364         {0x3b03, 0x00},
1365         {0x3b04, 0x00},
1366         {0x3b05, 0x00},
1367         {0x3c00, 0x89},
1368         {0x3c01, 0xab},
1369         {0x3c02, 0x01},
1370         {0x3c03, 0x00},
1371         {0x3c04, 0x00},
1372         {0x3c05, 0x03},
1373         {0x3c06, 0x00},
1374         {0x3c07, 0x05},
1375         {0x3c0c, 0x00},
1376         {0x3c0d, 0x00},
1377         {0x3c0e, 0x00},
1378         {0x3c0f, 0x00},
1379         {0x3c40, 0x00},
1380         {0x3c41, 0xa3},
1381         {0x3c43, 0x7d},
1382         {0x3c45, 0xd7},
1383         {0x3c47, 0xfc},
1384         {0x3c50, 0x05},
1385         {0x3c52, 0xaa},
1386         {0x3c54, 0x71},
1387         {0x3c56, 0x80},
1388         {0x3d85, 0x17},
1389         {0x3f03, 0x00},
1390         {0x3f0a, 0x00},
1391         {0x3f0b, 0x00},
1392         {0x4001, 0x60},
1393         {0x4009, 0x05},
1394         {0x4020, 0x00},
1395         {0x4021, 0x00},
1396         {0x4022, 0x00},
1397         {0x4023, 0x00},
1398         {0x4024, 0x00},
1399         {0x4025, 0x00},
1400         {0x4026, 0x00},
1401         {0x4027, 0x00},
1402         {0x4028, 0x00},
1403         {0x4029, 0x00},
1404         {0x402a, 0x00},
1405         {0x402b, 0x00},
1406         {0x402c, 0x00},
1407         {0x402d, 0x00},
1408         {0x402e, 0x00},
1409         {0x402f, 0x00},
1410         {0x4040, 0x00},
1411         {0x4041, 0x03},
1412         {0x4042, 0x00},
1413         {0x4043, 0x7A},
1414         {0x4044, 0x00},
1415         {0x4045, 0x7A},
1416         {0x4046, 0x00},
1417         {0x4047, 0x7A},
1418         {0x4048, 0x00},
1419         {0x4049, 0x7A},
1420         {0x4307, 0x30},
1421         {0x4500, 0x58},
1422         {0x4501, 0x04},
1423         {0x4502, 0x48},
1424         {0x4503, 0x10},
1425         {0x4508, 0x55},
1426         {0x4509, 0x55},
1427         {0x450a, 0x00},
1428         {0x450b, 0x00},
1429         {0x4600, 0x00},
1430         {0x4601, 0x80},
1431         {0x4700, 0xa4},
1432         {0x4800, 0x4c},
1433         {0x4816, 0x53},
1434         {0x481f, 0x40},
1435         {0x4837, 0x13},
1436         {0x5000, 0x56},
1437         {0x5001, 0x01},
1438         {0x5002, 0x28},
1439         {0x5004, 0x0c},
1440         {0x5006, 0x0c},
1441         {0x5007, 0xe0},
1442         {0x5008, 0x01},
1443         {0x5009, 0xb0},
1444         {0x5901, 0x00},
1445         {0x5a01, 0x00},
1446         {0x5a03, 0x00},
1447         {0x5a04, 0x0c},
1448         {0x5a05, 0xe0},
1449         {0x5a06, 0x09},
1450         {0x5a07, 0xb0},
1451         {0x5a08, 0x06},
1452         {0x5e00, 0x00},
1453         {0x3734, 0x40},
1454         {0x5b00, 0x01},
1455         {0x5b01, 0x10},
1456         {0x5b02, 0x01},
1457         {0x5b03, 0xdb},
1458         {0x3d8c, 0x71},
1459         {0x3d8d, 0xea},
1460         {0x4017, 0x10},
1461         {0x3618, 0x2a},
1462         {0x5780, 0x3e},
1463         {0x5781, 0x0f},
1464         {0x5782, 0x44},
1465         {0x5783, 0x02},
1466         {0x5784, 0x01},
1467         {0x5785, 0x01},
1468         {0x5786, 0x00},
1469         {0x5787, 0x04},
1470         {0x5788, 0x02},
1471         {0x5789, 0x0f},
1472         {0x578a, 0xfd},
1473         {0x578b, 0xf5},
1474         {0x578c, 0xf5},
1475         {0x578d, 0x03},
1476         {0x578e, 0x08},
1477         {0x578f, 0x0c},
1478         {0x5790, 0x08},
1479         {0x5791, 0x06},
1480         {0x5792, 0x00},
1481         {0x5793, 0x52},
1482         {0x5794, 0xa3},
1483         {0x3503, 0x00},
1484         {0x5045, 0x05},
1485         {0x4003, 0x40},
1486         {0x5048, 0x40}
1487 };
1488
1489 static const struct ov5670_reg mode_640x360_regs[] = {
1490         {0x3000, 0x00},
1491         {0x3002, 0x21},
1492         {0x3005, 0xf0},
1493         {0x3007, 0x00},
1494         {0x3015, 0x0f},
1495         {0x301a, 0xf0},
1496         {0x301b, 0xf0},
1497         {0x301c, 0xf0},
1498         {0x301d, 0xf0},
1499         {0x301e, 0xf0},
1500         {0x3030, 0x00},
1501         {0x3031, 0x0a},
1502         {0x303c, 0xff},
1503         {0x303e, 0xff},
1504         {0x3040, 0xf0},
1505         {0x3041, 0x00},
1506         {0x3042, 0xf0},
1507         {0x3106, 0x11},
1508         {0x3500, 0x00},
1509         {0x3501, 0x80},
1510         {0x3502, 0x00},
1511         {0x3503, 0x04},
1512         {0x3504, 0x03},
1513         {0x3505, 0x83},
1514         {0x3508, 0x04},
1515         {0x3509, 0x00},
1516         {0x350e, 0x04},
1517         {0x350f, 0x00},
1518         {0x3510, 0x00},
1519         {0x3511, 0x02},
1520         {0x3512, 0x00},
1521         {0x3601, 0xc8},
1522         {0x3610, 0x88},
1523         {0x3612, 0x48},
1524         {0x3614, 0x5b},
1525         {0x3615, 0x96},
1526         {0x3621, 0xd0},
1527         {0x3622, 0x00},
1528         {0x3623, 0x04},
1529         {0x3633, 0x13},
1530         {0x3634, 0x13},
1531         {0x3635, 0x13},
1532         {0x3636, 0x13},
1533         {0x3645, 0x13},
1534         {0x3646, 0x82},
1535         {0x3650, 0x00},
1536         {0x3652, 0xff},
1537         {0x3655, 0x20},
1538         {0x3656, 0xff},
1539         {0x365a, 0xff},
1540         {0x365e, 0xff},
1541         {0x3668, 0x00},
1542         {0x366a, 0x07},
1543         {0x366e, 0x08},
1544         {0x366d, 0x00},
1545         {0x366f, 0x80},
1546         {0x3700, 0x28},
1547         {0x3701, 0x10},
1548         {0x3702, 0x3a},
1549         {0x3703, 0x19},
1550         {0x3704, 0x10},
1551         {0x3705, 0x00},
1552         {0x3706, 0x66},
1553         {0x3707, 0x08},
1554         {0x3708, 0x34},
1555         {0x3709, 0x40},
1556         {0x370a, 0x01},
1557         {0x370b, 0x1b},
1558         {0x3714, 0x24},
1559         {0x371a, 0x3e},
1560         {0x3733, 0x00},
1561         {0x3734, 0x00},
1562         {0x373a, 0x05},
1563         {0x373b, 0x06},
1564         {0x373c, 0x0a},
1565         {0x373f, 0xa0},
1566         {0x3755, 0x00},
1567         {0x3758, 0x00},
1568         {0x375b, 0x0e},
1569         {0x3766, 0x5f},
1570         {0x3768, 0x00},
1571         {0x3769, 0x22},
1572         {0x3773, 0x08},
1573         {0x3774, 0x1f},
1574         {0x3776, 0x06},
1575         {0x37a0, 0x88},
1576         {0x37a1, 0x5c},
1577         {0x37a7, 0x88},
1578         {0x37a8, 0x70},
1579         {0x37aa, 0x88},
1580         {0x37ab, 0x48},
1581         {0x37b3, 0x66},
1582         {0x37c2, 0x04},
1583         {0x37c5, 0x00},
1584         {0x37c8, 0x00},
1585         {0x3800, 0x00},
1586         {0x3801, 0x0c},
1587         {0x3802, 0x00},
1588         {0x3803, 0x04},
1589         {0x3804, 0x0a},
1590         {0x3805, 0x33},
1591         {0x3806, 0x07},
1592         {0x3807, 0xa3},
1593         {0x3808, 0x02},
1594         {0x3809, 0x80},
1595         {0x380a, 0x01},
1596         {0x380b, 0x68},
1597         {0x380c, 0x06},
1598         {0x380d, 0x90},
1599         {0x380e, 0x08},
1600         {0x380f, 0x08},
1601         {0x3811, 0x04},
1602         {0x3813, 0x02},
1603         {0x3814, 0x07},
1604         {0x3815, 0x01},
1605         {0x3816, 0x00},
1606         {0x3817, 0x00},
1607         {0x3818, 0x00},
1608         {0x3819, 0x00},
1609         {0x3820, 0x94},
1610         {0x3821, 0xc6},
1611         {0x3822, 0x48},
1612         {0x3826, 0x00},
1613         {0x3827, 0x08},
1614         {0x382a, 0x07},
1615         {0x382b, 0x01},
1616         {0x3830, 0x08},
1617         {0x3836, 0x02},
1618         {0x3837, 0x00},
1619         {0x3838, 0x10},
1620         {0x3841, 0xff},
1621         {0x3846, 0x48},
1622         {0x3861, 0x00},
1623         {0x3862, 0x04},
1624         {0x3863, 0x06},
1625         {0x3a11, 0x01},
1626         {0x3a12, 0x78},
1627         {0x3b00, 0x00},
1628         {0x3b02, 0x00},
1629         {0x3b03, 0x00},
1630         {0x3b04, 0x00},
1631         {0x3b05, 0x00},
1632         {0x3c00, 0x89},
1633         {0x3c01, 0xab},
1634         {0x3c02, 0x01},
1635         {0x3c03, 0x00},
1636         {0x3c04, 0x00},
1637         {0x3c05, 0x03},
1638         {0x3c06, 0x00},
1639         {0x3c07, 0x05},
1640         {0x3c0c, 0x00},
1641         {0x3c0d, 0x00},
1642         {0x3c0e, 0x00},
1643         {0x3c0f, 0x00},
1644         {0x3c40, 0x00},
1645         {0x3c41, 0xa3},
1646         {0x3c43, 0x7d},
1647         {0x3c45, 0xd7},
1648         {0x3c47, 0xfc},
1649         {0x3c50, 0x05},
1650         {0x3c52, 0xaa},
1651         {0x3c54, 0x71},
1652         {0x3c56, 0x80},
1653         {0x3d85, 0x17},
1654         {0x3f03, 0x00},
1655         {0x3f0a, 0x00},
1656         {0x3f0b, 0x00},
1657         {0x4001, 0x60},
1658         {0x4009, 0x05},
1659         {0x4020, 0x00},
1660         {0x4021, 0x00},
1661         {0x4022, 0x00},
1662         {0x4023, 0x00},
1663         {0x4024, 0x00},
1664         {0x4025, 0x00},
1665         {0x4026, 0x00},
1666         {0x4027, 0x00},
1667         {0x4028, 0x00},
1668         {0x4029, 0x00},
1669         {0x402a, 0x00},
1670         {0x402b, 0x00},
1671         {0x402c, 0x00},
1672         {0x402d, 0x00},
1673         {0x402e, 0x00},
1674         {0x402f, 0x00},
1675         {0x4040, 0x00},
1676         {0x4041, 0x03},
1677         {0x4042, 0x00},
1678         {0x4043, 0x7A},
1679         {0x4044, 0x00},
1680         {0x4045, 0x7A},
1681         {0x4046, 0x00},
1682         {0x4047, 0x7A},
1683         {0x4048, 0x00},
1684         {0x4049, 0x7A},
1685         {0x4307, 0x30},
1686         {0x4500, 0x58},
1687         {0x4501, 0x04},
1688         {0x4502, 0x40},
1689         {0x4503, 0x10},
1690         {0x4508, 0x55},
1691         {0x4509, 0x55},
1692         {0x450a, 0x02},
1693         {0x450b, 0x00},
1694         {0x4600, 0x00},
1695         {0x4601, 0x40},
1696         {0x4700, 0xa4},
1697         {0x4800, 0x4c},
1698         {0x4816, 0x53},
1699         {0x481f, 0x40},
1700         {0x4837, 0x13},
1701         {0x5000, 0x56},
1702         {0x5001, 0x01},
1703         {0x5002, 0x28},
1704         {0x5004, 0x0c},
1705         {0x5006, 0x0c},
1706         {0x5007, 0xe0},
1707         {0x5008, 0x01},
1708         {0x5009, 0xb0},
1709         {0x5901, 0x00},
1710         {0x5a01, 0x00},
1711         {0x5a03, 0x00},
1712         {0x5a04, 0x0c},
1713         {0x5a05, 0xe0},
1714         {0x5a06, 0x09},
1715         {0x5a07, 0xb0},
1716         {0x5a08, 0x06},
1717         {0x5e00, 0x00},
1718         {0x3734, 0x40},
1719         {0x5b00, 0x01},
1720         {0x5b01, 0x10},
1721         {0x5b02, 0x01},
1722         {0x5b03, 0xdb},
1723         {0x3d8c, 0x71},
1724         {0x3d8d, 0xea},
1725         {0x4017, 0x10},
1726         {0x3618, 0x2a},
1727         {0x5780, 0x3e},
1728         {0x5781, 0x0f},
1729         {0x5782, 0x44},
1730         {0x5783, 0x02},
1731         {0x5784, 0x01},
1732         {0x5785, 0x01},
1733         {0x5786, 0x00},
1734         {0x5787, 0x04},
1735         {0x5788, 0x02},
1736         {0x5789, 0x0f},
1737         {0x578a, 0xfd},
1738         {0x578b, 0xf5},
1739         {0x578c, 0xf5},
1740         {0x578d, 0x03},
1741         {0x578e, 0x08},
1742         {0x578f, 0x0c},
1743         {0x5790, 0x08},
1744         {0x5791, 0x06},
1745         {0x5792, 0x00},
1746         {0x5793, 0x52},
1747         {0x5794, 0xa3},
1748         {0x3503, 0x00},
1749         {0x5045, 0x05},
1750         {0x4003, 0x40},
1751         {0x5048, 0x40}
1752 };
1753
1754 static const char * const ov5670_test_pattern_menu[] = {
1755         "Disabled",
1756         "Vertical Color Bar Type 1",
1757 };
1758
1759 /* Supported link frequencies */
1760 #define OV5670_LINK_FREQ_422MHZ         422400000
1761 #define OV5670_LINK_FREQ_422MHZ_INDEX   0
1762 static const struct ov5670_link_freq_config link_freq_configs[] = {
1763         {
1764                 .reg_list = {
1765                         .num_of_regs = ARRAY_SIZE(mipi_data_rate_840mbps),
1766                         .regs = mipi_data_rate_840mbps,
1767                 }
1768         }
1769 };
1770
1771 static const s64 link_freq_menu_items[] = {
1772         OV5670_LINK_FREQ_422MHZ
1773 };
1774
1775 /*
1776  * OV5670 sensor supports following resolutions with full FOV:
1777  * 4:3  ==> {2592x1944, 1296x972, 648x486}
1778  * 16:9 ==> {2560x1440, 1280x720, 640x360}
1779  */
1780 static const struct ov5670_mode supported_modes[] = {
1781         {
1782                 .width = 2592,
1783                 .height = 1944,
1784                 .vts_def = OV5670_VTS_30FPS,
1785                 .vts_min = OV5670_VTS_30FPS,
1786                 .link_freq_index = OV5670_LINK_FREQ_422MHZ_INDEX,
1787                 .analog_crop = &ov5670_analog_crop,
1788                 .reg_list = {
1789                         .num_of_regs = ARRAY_SIZE(mode_2592x1944_regs),
1790                         .regs = mode_2592x1944_regs,
1791                 },
1792         },
1793         {
1794                 .width = 1296,
1795                 .height = 972,
1796                 .vts_def = OV5670_VTS_30FPS,
1797                 .vts_min = 996,
1798                 .link_freq_index = OV5670_LINK_FREQ_422MHZ_INDEX,
1799                 .analog_crop = &ov5670_analog_crop,
1800                 .reg_list = {
1801                         .num_of_regs = ARRAY_SIZE(mode_1296x972_regs),
1802                         .regs = mode_1296x972_regs,
1803                 },
1804         },
1805         {
1806                 .width = 648,
1807                 .height = 486,
1808                 .vts_def = OV5670_VTS_30FPS,
1809                 .vts_min = 516,
1810                 .link_freq_index = OV5670_LINK_FREQ_422MHZ_INDEX,
1811                 .analog_crop = &ov5670_analog_crop,
1812                 .reg_list = {
1813                         .num_of_regs = ARRAY_SIZE(mode_648x486_regs),
1814                         .regs = mode_648x486_regs,
1815                 },
1816         },
1817         {
1818                 .width = 2560,
1819                 .height = 1440,
1820                 .vts_def = OV5670_VTS_30FPS,
1821                 .vts_min = OV5670_VTS_30FPS,
1822                 .link_freq_index = OV5670_LINK_FREQ_422MHZ_INDEX,
1823                 .analog_crop = &ov5670_analog_crop,
1824                 .reg_list = {
1825                         .num_of_regs = ARRAY_SIZE(mode_2560x1440_regs),
1826                         .regs = mode_2560x1440_regs,
1827                 },
1828         },
1829         {
1830                 .width = 1280,
1831                 .height = 720,
1832                 .vts_def = OV5670_VTS_30FPS,
1833                 .vts_min = 1020,
1834
1835                 .link_freq_index = OV5670_LINK_FREQ_422MHZ_INDEX,
1836                 .analog_crop = &ov5670_analog_crop,
1837                 .reg_list = {
1838                         .num_of_regs = ARRAY_SIZE(mode_1280x720_regs),
1839                         .regs = mode_1280x720_regs,
1840                 },
1841         },
1842         {
1843                 .width = 640,
1844                 .height = 360,
1845                 .vts_def = OV5670_VTS_30FPS,
1846                 .vts_min = 510,
1847                 .link_freq_index = OV5670_LINK_FREQ_422MHZ_INDEX,
1848                 .analog_crop = &ov5670_analog_crop,
1849                 .reg_list = {
1850                         .num_of_regs = ARRAY_SIZE(mode_640x360_regs),
1851                         .regs = mode_640x360_regs,
1852                 },
1853         }
1854 };
1855
1856 struct ov5670 {
1857         struct v4l2_subdev sd;
1858         struct media_pad pad;
1859         struct v4l2_fwnode_endpoint endpoint;
1860
1861         struct v4l2_ctrl_handler ctrl_handler;
1862         /* V4L2 Controls */
1863         struct v4l2_ctrl *link_freq;
1864         struct v4l2_ctrl *pixel_rate;
1865         struct v4l2_ctrl *vblank;
1866         struct v4l2_ctrl *hblank;
1867         struct v4l2_ctrl *exposure;
1868
1869         /* Current mode */
1870         const struct ov5670_mode *cur_mode;
1871
1872         /* xvclk input clock */
1873         struct clk *xvclk;
1874
1875         /* Regulators */
1876         struct regulator_bulk_data supplies[OV5670_NUM_SUPPLIES];
1877
1878         /* Power-down and reset gpios. */
1879         struct gpio_desc *pwdn_gpio; /* PWDNB pin. */
1880         struct gpio_desc *reset_gpio; /* XSHUTDOWN pin. */
1881
1882         /* To serialize asynchronus callbacks */
1883         struct mutex mutex;
1884
1885         /* True if the device has been identified */
1886         bool identified;
1887 };
1888
1889 #define to_ov5670(_sd)  container_of(_sd, struct ov5670, sd)
1890
1891 /* Read registers up to 4 at a time */
1892 static int ov5670_read_reg(struct ov5670 *ov5670, u16 reg, unsigned int len,
1893                            u32 *val)
1894 {
1895         struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
1896         struct i2c_msg msgs[2];
1897         u8 *data_be_p;
1898         __be32 data_be = 0;
1899         __be16 reg_addr_be = cpu_to_be16(reg);
1900         int ret;
1901
1902         if (len > 4)
1903                 return -EINVAL;
1904
1905         data_be_p = (u8 *)&data_be;
1906         /* Write register address */
1907         msgs[0].addr = client->addr;
1908         msgs[0].flags = 0;
1909         msgs[0].len = 2;
1910         msgs[0].buf = (u8 *)&reg_addr_be;
1911
1912         /* Read data from register */
1913         msgs[1].addr = client->addr;
1914         msgs[1].flags = I2C_M_RD;
1915         msgs[1].len = len;
1916         msgs[1].buf = &data_be_p[4 - len];
1917
1918         ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
1919         if (ret != ARRAY_SIZE(msgs))
1920                 return -EIO;
1921
1922         *val = be32_to_cpu(data_be);
1923
1924         return 0;
1925 }
1926
1927 /* Write registers up to 4 at a time */
1928 static int ov5670_write_reg(struct ov5670 *ov5670, u16 reg, unsigned int len,
1929                             u32 val)
1930 {
1931         struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
1932         int buf_i;
1933         int val_i;
1934         u8 buf[6];
1935         u8 *val_p;
1936         __be32 tmp;
1937
1938         if (len > 4)
1939                 return -EINVAL;
1940
1941         buf[0] = reg >> 8;
1942         buf[1] = reg & 0xff;
1943
1944         tmp = cpu_to_be32(val);
1945         val_p = (u8 *)&tmp;
1946         buf_i = 2;
1947         val_i = 4 - len;
1948
1949         while (val_i < 4)
1950                 buf[buf_i++] = val_p[val_i++];
1951
1952         if (i2c_master_send(client, buf, len + 2) != len + 2)
1953                 return -EIO;
1954
1955         return 0;
1956 }
1957
1958 /* Write a list of registers */
1959 static int ov5670_write_regs(struct ov5670 *ov5670,
1960                              const struct ov5670_reg *regs, unsigned int len)
1961 {
1962         struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
1963         unsigned int i;
1964         int ret;
1965
1966         for (i = 0; i < len; i++) {
1967                 ret = ov5670_write_reg(ov5670, regs[i].address, 1, regs[i].val);
1968                 if (ret) {
1969                         dev_err_ratelimited(
1970                                 &client->dev,
1971                                 "Failed to write reg 0x%4.4x. error = %d\n",
1972                                 regs[i].address, ret);
1973
1974                         return ret;
1975                 }
1976         }
1977
1978         return 0;
1979 }
1980
1981 static int ov5670_write_reg_list(struct ov5670 *ov5670,
1982                                  const struct ov5670_reg_list *r_list)
1983 {
1984         return ov5670_write_regs(ov5670, r_list->regs, r_list->num_of_regs);
1985 }
1986
1987 static int ov5670_update_digital_gain(struct ov5670 *ov5670, u32 d_gain)
1988 {
1989         int ret;
1990
1991         ret = ov5670_write_reg(ov5670, OV5670_REG_R_DGTL_GAIN,
1992                                OV5670_REG_VALUE_16BIT, d_gain);
1993         if (ret)
1994                 return ret;
1995
1996         ret = ov5670_write_reg(ov5670, OV5670_REG_G_DGTL_GAIN,
1997                                OV5670_REG_VALUE_16BIT, d_gain);
1998         if (ret)
1999                 return ret;
2000
2001         return ov5670_write_reg(ov5670, OV5670_REG_B_DGTL_GAIN,
2002                                 OV5670_REG_VALUE_16BIT, d_gain);
2003 }
2004
2005 static int ov5670_enable_test_pattern(struct ov5670 *ov5670, u32 pattern)
2006 {
2007         u32 val;
2008         int ret;
2009
2010         /* Set the bayer order that we support */
2011         ret = ov5670_write_reg(ov5670, OV5670_REG_TEST_PATTERN_CTRL,
2012                                OV5670_REG_VALUE_08BIT, 0);
2013         if (ret)
2014                 return ret;
2015
2016         ret = ov5670_read_reg(ov5670, OV5670_REG_TEST_PATTERN,
2017                               OV5670_REG_VALUE_08BIT, &val);
2018         if (ret)
2019                 return ret;
2020
2021         if (pattern)
2022                 val |= OV5670_TEST_PATTERN_ENABLE;
2023         else
2024                 val &= ~OV5670_TEST_PATTERN_ENABLE;
2025
2026         return ov5670_write_reg(ov5670, OV5670_REG_TEST_PATTERN,
2027                                 OV5670_REG_VALUE_08BIT, val);
2028 }
2029
2030 /* Initialize control handlers */
2031 static int ov5670_set_ctrl(struct v4l2_ctrl *ctrl)
2032 {
2033         struct ov5670 *ov5670 = container_of(ctrl->handler,
2034                                              struct ov5670, ctrl_handler);
2035         struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
2036         s64 max;
2037         int ret;
2038
2039         /* Propagate change of current control to all related controls */
2040         switch (ctrl->id) {
2041         case V4L2_CID_VBLANK:
2042                 /* Update max exposure while meeting expected vblanking */
2043                 max = ov5670->cur_mode->height + ctrl->val - 8;
2044                 __v4l2_ctrl_modify_range(ov5670->exposure,
2045                                          ov5670->exposure->minimum, max,
2046                                          ov5670->exposure->step, max);
2047                 break;
2048         }
2049
2050         /* V4L2 controls values will be applied only when power is already up */
2051         if (!pm_runtime_get_if_in_use(&client->dev))
2052                 return 0;
2053
2054         switch (ctrl->id) {
2055         case V4L2_CID_ANALOGUE_GAIN:
2056                 ret = ov5670_write_reg(ov5670, OV5670_REG_ANALOG_GAIN,
2057                                        OV5670_REG_VALUE_16BIT, ctrl->val);
2058                 break;
2059         case V4L2_CID_DIGITAL_GAIN:
2060                 ret = ov5670_update_digital_gain(ov5670, ctrl->val);
2061                 break;
2062         case V4L2_CID_EXPOSURE:
2063                 /* 4 least significant bits of expsoure are fractional part */
2064                 ret = ov5670_write_reg(ov5670, OV5670_REG_EXPOSURE,
2065                                        OV5670_REG_VALUE_24BIT, ctrl->val << 4);
2066                 break;
2067         case V4L2_CID_VBLANK:
2068                 /* Update VTS that meets expected vertical blanking */
2069                 ret = ov5670_write_reg(ov5670, OV5670_REG_VTS,
2070                                        OV5670_REG_VALUE_16BIT,
2071                                        ov5670->cur_mode->height + ctrl->val);
2072                 break;
2073         case V4L2_CID_TEST_PATTERN:
2074                 ret = ov5670_enable_test_pattern(ov5670, ctrl->val);
2075                 break;
2076         case V4L2_CID_HBLANK:
2077         case V4L2_CID_LINK_FREQ:
2078         case V4L2_CID_PIXEL_RATE:
2079                 ret = 0;
2080                 break;
2081         default:
2082                 ret = -EINVAL;
2083                 dev_info(&client->dev, "%s Unhandled id:0x%x, val:0x%x\n",
2084                          __func__, ctrl->id, ctrl->val);
2085                 break;
2086         }
2087
2088         pm_runtime_put(&client->dev);
2089
2090         return ret;
2091 }
2092
2093 static const struct v4l2_ctrl_ops ov5670_ctrl_ops = {
2094         .s_ctrl = ov5670_set_ctrl,
2095 };
2096
2097 /* Initialize control handlers */
2098 static int ov5670_init_controls(struct ov5670 *ov5670)
2099 {
2100         struct v4l2_mbus_config_mipi_csi2 *bus_mipi_csi2 =
2101                 &ov5670->endpoint.bus.mipi_csi2;
2102         struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
2103         struct v4l2_fwnode_device_properties props;
2104         struct v4l2_ctrl_handler *ctrl_hdlr;
2105         unsigned int lanes_count;
2106         s64 mipi_pixel_rate;
2107         s64 vblank_max;
2108         s64 vblank_def;
2109         s64 vblank_min;
2110         s64 exposure_max;
2111         int ret;
2112
2113         ctrl_hdlr = &ov5670->ctrl_handler;
2114         ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10);
2115         if (ret)
2116                 return ret;
2117
2118         ctrl_hdlr->lock = &ov5670->mutex;
2119         ov5670->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr,
2120                                                    &ov5670_ctrl_ops,
2121                                                    V4L2_CID_LINK_FREQ,
2122                                                    0, 0, link_freq_menu_items);
2123         if (ov5670->link_freq)
2124                 ov5670->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2125
2126         /* By default, V4L2_CID_PIXEL_RATE is read only */
2127         lanes_count = bus_mipi_csi2->num_data_lanes;
2128         mipi_pixel_rate = OV5670_LINK_FREQ_422MHZ * 2 * lanes_count / 10;
2129
2130         ov5670->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops,
2131                                                V4L2_CID_PIXEL_RATE,
2132                                                mipi_pixel_rate,
2133                                                mipi_pixel_rate,
2134                                                1,
2135                                                mipi_pixel_rate);
2136
2137         vblank_max = OV5670_VTS_MAX - ov5670->cur_mode->height;
2138         vblank_def = ov5670->cur_mode->vts_def - ov5670->cur_mode->height;
2139         vblank_min = ov5670->cur_mode->vts_min - ov5670->cur_mode->height;
2140         ov5670->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops,
2141                                            V4L2_CID_VBLANK, vblank_min,
2142                                            vblank_max, 1, vblank_def);
2143
2144         ov5670->hblank = v4l2_ctrl_new_std(
2145                                 ctrl_hdlr, &ov5670_ctrl_ops, V4L2_CID_HBLANK,
2146                                 OV5670_FIXED_PPL - ov5670->cur_mode->width,
2147                                 OV5670_FIXED_PPL - ov5670->cur_mode->width, 1,
2148                                 OV5670_FIXED_PPL - ov5670->cur_mode->width);
2149         if (ov5670->hblank)
2150                 ov5670->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
2151
2152         /* Get min, max, step, default from sensor */
2153         v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
2154                           ANALOG_GAIN_MIN, ANALOG_GAIN_MAX, ANALOG_GAIN_STEP,
2155                           ANALOG_GAIN_DEFAULT);
2156
2157         /* Digital gain */
2158         v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
2159                           OV5670_DGTL_GAIN_MIN, OV5670_DGTL_GAIN_MAX,
2160                           OV5670_DGTL_GAIN_STEP, OV5670_DGTL_GAIN_DEFAULT);
2161
2162         /* Get min, max, step, default from sensor */
2163         exposure_max = ov5670->cur_mode->vts_def - 8;
2164         ov5670->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov5670_ctrl_ops,
2165                                              V4L2_CID_EXPOSURE,
2166                                              OV5670_EXPOSURE_MIN,
2167                                              exposure_max, OV5670_EXPOSURE_STEP,
2168                                              exposure_max);
2169
2170         v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov5670_ctrl_ops,
2171                                      V4L2_CID_TEST_PATTERN,
2172                                      ARRAY_SIZE(ov5670_test_pattern_menu) - 1,
2173                                      0, 0, ov5670_test_pattern_menu);
2174
2175         if (ctrl_hdlr->error) {
2176                 ret = ctrl_hdlr->error;
2177                 goto error;
2178         }
2179
2180         ret = v4l2_fwnode_device_parse(&client->dev, &props);
2181         if (ret)
2182                 goto error;
2183
2184         ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &ov5670_ctrl_ops,
2185                                               &props);
2186         if (ret)
2187                 goto error;
2188
2189         ov5670->sd.ctrl_handler = ctrl_hdlr;
2190
2191         return 0;
2192
2193 error:
2194         v4l2_ctrl_handler_free(ctrl_hdlr);
2195
2196         return ret;
2197 }
2198
2199 static int ov5670_init_cfg(struct v4l2_subdev *sd,
2200                            struct v4l2_subdev_state *state)
2201 {
2202         struct v4l2_mbus_framefmt *fmt =
2203                                 v4l2_subdev_get_try_format(sd, state, 0);
2204         const struct ov5670_mode *default_mode = &supported_modes[0];
2205         struct v4l2_rect *crop = v4l2_subdev_get_try_crop(sd, state, 0);
2206
2207         fmt->width = default_mode->width;
2208         fmt->height = default_mode->height;
2209         fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
2210         fmt->field = V4L2_FIELD_NONE;
2211         fmt->colorspace = V4L2_COLORSPACE_SRGB;
2212         fmt->ycbcr_enc = V4L2_MAP_YCBCR_ENC_DEFAULT(V4L2_COLORSPACE_SRGB);
2213         fmt->quantization = V4L2_QUANTIZATION_FULL_RANGE;
2214         fmt->xfer_func = V4L2_MAP_XFER_FUNC_DEFAULT(V4L2_COLORSPACE_SRGB);
2215
2216         *crop = *default_mode->analog_crop;
2217
2218         return 0;
2219 }
2220
2221 static int ov5670_enum_mbus_code(struct v4l2_subdev *sd,
2222                                  struct v4l2_subdev_state *sd_state,
2223                                  struct v4l2_subdev_mbus_code_enum *code)
2224 {
2225         /* Only one bayer order GRBG is supported */
2226         if (code->index > 0)
2227                 return -EINVAL;
2228
2229         code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
2230
2231         return 0;
2232 }
2233
2234 static int ov5670_enum_frame_size(struct v4l2_subdev *sd,
2235                                   struct v4l2_subdev_state *sd_state,
2236                                   struct v4l2_subdev_frame_size_enum *fse)
2237 {
2238         if (fse->index >= ARRAY_SIZE(supported_modes))
2239                 return -EINVAL;
2240
2241         if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
2242                 return -EINVAL;
2243
2244         fse->min_width = supported_modes[fse->index].width;
2245         fse->max_width = fse->min_width;
2246         fse->min_height = supported_modes[fse->index].height;
2247         fse->max_height = fse->min_height;
2248
2249         return 0;
2250 }
2251
2252 static void ov5670_update_pad_format(const struct ov5670_mode *mode,
2253                                      struct v4l2_subdev_format *fmt)
2254 {
2255         fmt->format.width = mode->width;
2256         fmt->format.height = mode->height;
2257         fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
2258         fmt->format.field = V4L2_FIELD_NONE;
2259 }
2260
2261 static int ov5670_do_get_pad_format(struct ov5670 *ov5670,
2262                                     struct v4l2_subdev_state *sd_state,
2263                                     struct v4l2_subdev_format *fmt)
2264 {
2265         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
2266                 fmt->format = *v4l2_subdev_get_try_format(&ov5670->sd,
2267                                                           sd_state,
2268                                                           fmt->pad);
2269         else
2270                 ov5670_update_pad_format(ov5670->cur_mode, fmt);
2271
2272         return 0;
2273 }
2274
2275 static int ov5670_get_pad_format(struct v4l2_subdev *sd,
2276                                  struct v4l2_subdev_state *sd_state,
2277                                  struct v4l2_subdev_format *fmt)
2278 {
2279         struct ov5670 *ov5670 = to_ov5670(sd);
2280         int ret;
2281
2282         mutex_lock(&ov5670->mutex);
2283         ret = ov5670_do_get_pad_format(ov5670, sd_state, fmt);
2284         mutex_unlock(&ov5670->mutex);
2285
2286         return ret;
2287 }
2288
2289 static int ov5670_set_pad_format(struct v4l2_subdev *sd,
2290                                  struct v4l2_subdev_state *sd_state,
2291                                  struct v4l2_subdev_format *fmt)
2292 {
2293         struct ov5670 *ov5670 = to_ov5670(sd);
2294         struct v4l2_mbus_config_mipi_csi2 *bus_mipi_csi2 =
2295                 &ov5670->endpoint.bus.mipi_csi2;
2296         const struct ov5670_mode *mode;
2297         unsigned int lanes_count;
2298         s64 mipi_pixel_rate;
2299         s32 vblank_def;
2300         s64 link_freq;
2301         s32 h_blank;
2302
2303         mutex_lock(&ov5670->mutex);
2304
2305         fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
2306
2307         mode = v4l2_find_nearest_size(supported_modes,
2308                                       ARRAY_SIZE(supported_modes),
2309                                       width, height,
2310                                       fmt->format.width, fmt->format.height);
2311         ov5670_update_pad_format(mode, fmt);
2312         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
2313                 *v4l2_subdev_get_try_format(sd, sd_state, fmt->pad) = fmt->format;
2314         } else {
2315                 ov5670->cur_mode = mode;
2316                 __v4l2_ctrl_s_ctrl(ov5670->link_freq, mode->link_freq_index);
2317
2318                 lanes_count = bus_mipi_csi2->num_data_lanes;
2319                 link_freq = link_freq_menu_items[mode->link_freq_index];
2320                 /* pixel_rate = link_freq * 2 * nr_of_lanes / bits_per_sample */
2321                 mipi_pixel_rate = div_s64(link_freq * 2 * lanes_count, 10);
2322                 __v4l2_ctrl_s_ctrl_int64(
2323                         ov5670->pixel_rate,
2324                         mipi_pixel_rate);
2325                 /* Update limits and set FPS to default */
2326                 vblank_def = ov5670->cur_mode->vts_def -
2327                              ov5670->cur_mode->height;
2328                 __v4l2_ctrl_modify_range(
2329                         ov5670->vblank,
2330                         ov5670->cur_mode->vts_min - ov5670->cur_mode->height,
2331                         OV5670_VTS_MAX - ov5670->cur_mode->height, 1,
2332                         vblank_def);
2333                 __v4l2_ctrl_s_ctrl(ov5670->vblank, vblank_def);
2334                 h_blank = OV5670_FIXED_PPL - ov5670->cur_mode->width;
2335                 __v4l2_ctrl_modify_range(ov5670->hblank, h_blank, h_blank, 1,
2336                                          h_blank);
2337         }
2338
2339         mutex_unlock(&ov5670->mutex);
2340
2341         return 0;
2342 }
2343
2344 static int ov5670_get_skip_frames(struct v4l2_subdev *sd, u32 *frames)
2345 {
2346         *frames = OV5670_NUM_OF_SKIP_FRAMES;
2347
2348         return 0;
2349 }
2350
2351 /* Verify chip ID */
2352 static int ov5670_identify_module(struct ov5670 *ov5670)
2353 {
2354         struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
2355         int ret;
2356         u32 val;
2357
2358         if (ov5670->identified)
2359                 return 0;
2360
2361         ret = ov5670_read_reg(ov5670, OV5670_REG_CHIP_ID,
2362                               OV5670_REG_VALUE_24BIT, &val);
2363         if (ret)
2364                 return ret;
2365
2366         if (val != OV5670_CHIP_ID) {
2367                 dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
2368                         OV5670_CHIP_ID, val);
2369                 return -ENXIO;
2370         }
2371
2372         ov5670->identified = true;
2373
2374         return 0;
2375 }
2376
2377 static int ov5670_mipi_configure(struct ov5670 *ov5670)
2378 {
2379         struct v4l2_mbus_config_mipi_csi2 *bus_mipi_csi2 =
2380                 &ov5670->endpoint.bus.mipi_csi2;
2381         unsigned int lanes_count = bus_mipi_csi2->num_data_lanes;
2382
2383         return ov5670_write_reg(ov5670, OV5670_MIPI_SC_CTRL0_REG,
2384                                 OV5670_REG_VALUE_08BIT,
2385                                 OV5670_MIPI_SC_CTRL0_LANES(lanes_count) |
2386                                 OV5670_MIPI_SC_CTRL0_MIPI_EN |
2387                                 OV5670_MIPI_SC_CTRL0_RESERVED);
2388 }
2389
2390 /* Prepare streaming by writing default values and customized values */
2391 static int ov5670_start_streaming(struct ov5670 *ov5670)
2392 {
2393         struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
2394         const struct ov5670_reg_list *reg_list;
2395         int link_freq_index;
2396         int ret;
2397
2398         ret = ov5670_identify_module(ov5670);
2399         if (ret)
2400                 return ret;
2401
2402         /* Get out of from software reset */
2403         ret = ov5670_write_reg(ov5670, OV5670_REG_SOFTWARE_RST,
2404                                OV5670_REG_VALUE_08BIT, OV5670_SOFTWARE_RST);
2405         if (ret) {
2406                 dev_err(&client->dev, "%s failed to set powerup registers\n",
2407                         __func__);
2408                 return ret;
2409         }
2410
2411         /* Setup PLL */
2412         link_freq_index = ov5670->cur_mode->link_freq_index;
2413         reg_list = &link_freq_configs[link_freq_index].reg_list;
2414         ret = ov5670_write_reg_list(ov5670, reg_list);
2415         if (ret) {
2416                 dev_err(&client->dev, "%s failed to set plls\n", __func__);
2417                 return ret;
2418         }
2419
2420         /* Apply default values of current mode */
2421         reg_list = &ov5670->cur_mode->reg_list;
2422         ret = ov5670_write_reg_list(ov5670, reg_list);
2423         if (ret) {
2424                 dev_err(&client->dev, "%s failed to set mode\n", __func__);
2425                 return ret;
2426         }
2427
2428         ret = ov5670_mipi_configure(ov5670);
2429         if (ret) {
2430                 dev_err(&client->dev, "%s failed to configure MIPI\n", __func__);
2431                 return ret;
2432         }
2433
2434         ret = __v4l2_ctrl_handler_setup(ov5670->sd.ctrl_handler);
2435         if (ret)
2436                 return ret;
2437
2438         /* Write stream on list */
2439         ret = ov5670_write_reg(ov5670, OV5670_REG_MODE_SELECT,
2440                                OV5670_REG_VALUE_08BIT, OV5670_MODE_STREAMING);
2441         if (ret) {
2442                 dev_err(&client->dev, "%s failed to set stream\n", __func__);
2443                 return ret;
2444         }
2445
2446         return 0;
2447 }
2448
2449 static int ov5670_stop_streaming(struct ov5670 *ov5670)
2450 {
2451         struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
2452         int ret;
2453
2454         ret = ov5670_write_reg(ov5670, OV5670_REG_MODE_SELECT,
2455                                OV5670_REG_VALUE_08BIT, OV5670_MODE_STANDBY);
2456         if (ret)
2457                 dev_err(&client->dev, "%s failed to set stream\n", __func__);
2458
2459         /* Return success even if it was an error, as there is nothing the
2460          * caller can do about it.
2461          */
2462         return 0;
2463 }
2464
2465 static int ov5670_set_stream(struct v4l2_subdev *sd, int enable)
2466 {
2467         struct ov5670 *ov5670 = to_ov5670(sd);
2468         struct i2c_client *client = v4l2_get_subdevdata(sd);
2469         int ret = 0;
2470
2471         mutex_lock(&ov5670->mutex);
2472
2473         if (enable) {
2474                 ret = pm_runtime_resume_and_get(&client->dev);
2475                 if (ret < 0)
2476                         goto unlock_and_return;
2477
2478                 ret = ov5670_start_streaming(ov5670);
2479                 if (ret)
2480                         goto error;
2481         } else {
2482                 ret = ov5670_stop_streaming(ov5670);
2483                 pm_runtime_put(&client->dev);
2484         }
2485         goto unlock_and_return;
2486
2487 error:
2488         pm_runtime_put(&client->dev);
2489
2490 unlock_and_return:
2491         mutex_unlock(&ov5670->mutex);
2492
2493         return ret;
2494 }
2495
2496 static int __maybe_unused ov5670_runtime_resume(struct device *dev)
2497 {
2498         struct i2c_client *client = to_i2c_client(dev);
2499         struct v4l2_subdev *sd = i2c_get_clientdata(client);
2500         struct ov5670 *ov5670 = to_ov5670(sd);
2501         unsigned long delay_us;
2502         int ret;
2503
2504         ret = clk_prepare_enable(ov5670->xvclk);
2505         if (ret)
2506                 return ret;
2507
2508         ret = regulator_bulk_enable(OV5670_NUM_SUPPLIES, ov5670->supplies);
2509         if (ret) {
2510                 clk_disable_unprepare(ov5670->xvclk);
2511                 return ret;
2512         }
2513
2514         gpiod_set_value_cansleep(ov5670->pwdn_gpio, 0);
2515         gpiod_set_value_cansleep(ov5670->reset_gpio, 0);
2516
2517         /* 8192 * 2 clock pulses before the first SCCB transaction. */
2518         delay_us = DIV_ROUND_UP(8192 * 2 * 1000,
2519                                 DIV_ROUND_UP(OV5670_XVCLK_FREQ, 1000));
2520         fsleep(delay_us);
2521
2522         return 0;
2523 }
2524
2525 static int __maybe_unused ov5670_runtime_suspend(struct device *dev)
2526 {
2527         struct i2c_client *client = to_i2c_client(dev);
2528         struct v4l2_subdev *sd = i2c_get_clientdata(client);
2529         struct ov5670 *ov5670 = to_ov5670(sd);
2530
2531         gpiod_set_value_cansleep(ov5670->reset_gpio, 1);
2532         gpiod_set_value_cansleep(ov5670->pwdn_gpio, 1);
2533         regulator_bulk_disable(OV5670_NUM_SUPPLIES, ov5670->supplies);
2534         clk_disable_unprepare(ov5670->xvclk);
2535
2536         return 0;
2537 }
2538
2539 static const struct v4l2_subdev_core_ops ov5670_core_ops = {
2540         .log_status = v4l2_ctrl_subdev_log_status,
2541         .subscribe_event = v4l2_ctrl_subdev_subscribe_event,
2542         .unsubscribe_event = v4l2_event_subdev_unsubscribe,
2543 };
2544
2545 static const struct v4l2_rect *
2546 __ov5670_get_pad_crop(struct ov5670 *sensor, struct v4l2_subdev_state *state,
2547                       unsigned int pad, enum v4l2_subdev_format_whence which)
2548 {
2549         const struct ov5670_mode *mode = sensor->cur_mode;
2550
2551         switch (which) {
2552         case V4L2_SUBDEV_FORMAT_TRY:
2553                 return v4l2_subdev_get_try_crop(&sensor->sd, state, pad);
2554         case V4L2_SUBDEV_FORMAT_ACTIVE:
2555                 return mode->analog_crop;
2556         }
2557
2558         return NULL;
2559 }
2560
2561 static int ov5670_get_selection(struct v4l2_subdev *subdev,
2562                                 struct v4l2_subdev_state *state,
2563                                 struct v4l2_subdev_selection *sel)
2564 {
2565         struct ov5670 *sensor = to_ov5670(subdev);
2566
2567         switch (sel->target) {
2568         case V4L2_SEL_TGT_CROP:
2569                 mutex_lock(&sensor->mutex);
2570                 sel->r = *__ov5670_get_pad_crop(sensor, state, sel->pad,
2571                                                 sel->which);
2572                 mutex_unlock(&sensor->mutex);
2573                 break;
2574         case V4L2_SEL_TGT_NATIVE_SIZE:
2575         case V4L2_SEL_TGT_CROP_BOUNDS:
2576                 sel->r.top = 0;
2577                 sel->r.left = 0;
2578                 sel->r.width = OV5670_NATIVE_WIDTH;
2579                 sel->r.height = OV5670_NATIVE_HEIGHT;
2580                 break;
2581         case V4L2_SEL_TGT_CROP_DEFAULT:
2582                 sel->r = ov5670_analog_crop;
2583                 break;
2584         default:
2585                 return -EINVAL;
2586         }
2587
2588         return 0;
2589 }
2590
2591 static const struct v4l2_subdev_video_ops ov5670_video_ops = {
2592         .s_stream = ov5670_set_stream,
2593 };
2594
2595 static const struct v4l2_subdev_pad_ops ov5670_pad_ops = {
2596         .init_cfg = ov5670_init_cfg,
2597         .enum_mbus_code = ov5670_enum_mbus_code,
2598         .get_fmt = ov5670_get_pad_format,
2599         .set_fmt = ov5670_set_pad_format,
2600         .enum_frame_size = ov5670_enum_frame_size,
2601         .get_selection = ov5670_get_selection,
2602         .set_selection = ov5670_get_selection,
2603 };
2604
2605 static const struct v4l2_subdev_sensor_ops ov5670_sensor_ops = {
2606         .g_skip_frames = ov5670_get_skip_frames,
2607 };
2608
2609 static const struct v4l2_subdev_ops ov5670_subdev_ops = {
2610         .core = &ov5670_core_ops,
2611         .video = &ov5670_video_ops,
2612         .pad = &ov5670_pad_ops,
2613         .sensor = &ov5670_sensor_ops,
2614 };
2615
2616 static const struct media_entity_operations ov5670_subdev_entity_ops = {
2617         .link_validate = v4l2_subdev_link_validate,
2618 };
2619
2620 static int ov5670_regulators_probe(struct ov5670 *ov5670)
2621 {
2622         struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
2623         unsigned int i;
2624
2625         for (i = 0; i < OV5670_NUM_SUPPLIES; i++)
2626                 ov5670->supplies[i].supply = ov5670_supply_names[i];
2627
2628         return devm_regulator_bulk_get(&client->dev, OV5670_NUM_SUPPLIES,
2629                                        ov5670->supplies);
2630 }
2631
2632 static int ov5670_gpio_probe(struct ov5670 *ov5670)
2633 {
2634         struct i2c_client *client = v4l2_get_subdevdata(&ov5670->sd);
2635
2636         ov5670->pwdn_gpio = devm_gpiod_get_optional(&client->dev, "powerdown",
2637                                                     GPIOD_OUT_LOW);
2638         if (IS_ERR(ov5670->pwdn_gpio))
2639                 return PTR_ERR(ov5670->pwdn_gpio);
2640
2641         ov5670->reset_gpio = devm_gpiod_get_optional(&client->dev, "reset",
2642                                                      GPIOD_OUT_LOW);
2643         if (IS_ERR(ov5670->reset_gpio))
2644                 return PTR_ERR(ov5670->reset_gpio);
2645
2646         return 0;
2647 }
2648
2649 static int ov5670_probe(struct i2c_client *client)
2650 {
2651         struct fwnode_handle *handle;
2652         struct ov5670 *ov5670;
2653         u32 input_clk = 0;
2654         bool full_power;
2655         int ret;
2656
2657         ov5670 = devm_kzalloc(&client->dev, sizeof(*ov5670), GFP_KERNEL);
2658         if (!ov5670)
2659                 return -ENOMEM;
2660
2661         ov5670->xvclk = devm_clk_get_optional(&client->dev, NULL);
2662         if (!IS_ERR_OR_NULL(ov5670->xvclk))
2663                 input_clk = clk_get_rate(ov5670->xvclk);
2664         else if (!ov5670->xvclk || PTR_ERR(ov5670->xvclk) == -ENOENT)
2665                 device_property_read_u32(&client->dev, "clock-frequency",
2666                                          &input_clk);
2667         else
2668                 return dev_err_probe(&client->dev, PTR_ERR(ov5670->xvclk),
2669                                      "error getting clock\n");
2670
2671         if (input_clk != OV5670_XVCLK_FREQ) {
2672                 dev_err(&client->dev,
2673                         "Unsupported clock frequency %u\n", input_clk);
2674                 return -EINVAL;
2675         }
2676
2677         /* Initialize subdev */
2678         v4l2_i2c_subdev_init(&ov5670->sd, client, &ov5670_subdev_ops);
2679
2680         ret = ov5670_regulators_probe(ov5670);
2681         if (ret)
2682                 return dev_err_probe(&client->dev, ret, "Regulators probe failed\n");
2683
2684         ret = ov5670_gpio_probe(ov5670);
2685         if (ret)
2686                 return dev_err_probe(&client->dev, ret, "GPIO probe failed\n");
2687
2688         /* Graph Endpoint */
2689         handle = fwnode_graph_get_next_endpoint(dev_fwnode(&client->dev), NULL);
2690         if (!handle)
2691                 return dev_err_probe(&client->dev, -ENXIO, "Endpoint for node get failed\n");
2692
2693         ov5670->endpoint.bus_type = V4L2_MBUS_CSI2_DPHY;
2694         ov5670->endpoint.bus.mipi_csi2.num_data_lanes = 2;
2695
2696         ret = v4l2_fwnode_endpoint_alloc_parse(handle, &ov5670->endpoint);
2697         fwnode_handle_put(handle);
2698         if (ret)
2699                 return dev_err_probe(&client->dev, ret, "Endpoint parse failed\n");
2700
2701         full_power = acpi_dev_state_d0(&client->dev);
2702         if (full_power) {
2703                 ret = ov5670_runtime_resume(&client->dev);
2704                 if (ret) {
2705                         dev_err_probe(&client->dev, ret, "Power up failed\n");
2706                         goto error_endpoint;
2707                 }
2708
2709                 /* Check module identity */
2710                 ret = ov5670_identify_module(ov5670);
2711                 if (ret) {
2712                         dev_err_probe(&client->dev, ret, "ov5670_identify_module() error\n");
2713                         goto error_power_off;
2714                 }
2715         }
2716
2717         mutex_init(&ov5670->mutex);
2718
2719         /* Set default mode to max resolution */
2720         ov5670->cur_mode = &supported_modes[0];
2721
2722         ret = ov5670_init_controls(ov5670);
2723         if (ret) {
2724                 dev_err_probe(&client->dev, ret, "ov5670_init_controls() error\n");
2725                 goto error_mutex_destroy;
2726         }
2727
2728         ov5670->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
2729                             V4L2_SUBDEV_FL_HAS_EVENTS;
2730         ov5670->sd.entity.ops = &ov5670_subdev_entity_ops;
2731         ov5670->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
2732
2733         /* Source pad initialization */
2734         ov5670->pad.flags = MEDIA_PAD_FL_SOURCE;
2735         ret = media_entity_pads_init(&ov5670->sd.entity, 1, &ov5670->pad);
2736         if (ret) {
2737                 dev_err_probe(&client->dev, ret, "media_entity_pads_init() error\n");
2738                 goto error_handler_free;
2739         }
2740
2741         /* Set the device's state to active if it's in D0 state. */
2742         if (full_power)
2743                 pm_runtime_set_active(&client->dev);
2744         pm_runtime_enable(&client->dev);
2745
2746         /* Async register for subdev */
2747         ret = v4l2_async_register_subdev_sensor(&ov5670->sd);
2748         if (ret < 0) {
2749                 dev_err_probe(&client->dev, ret, "v4l2_async_register_subdev() error\n");
2750                 goto error_pm_disable;
2751         }
2752
2753         pm_runtime_idle(&client->dev);
2754
2755         return 0;
2756
2757 error_pm_disable:
2758         pm_runtime_disable(&client->dev);
2759
2760         media_entity_cleanup(&ov5670->sd.entity);
2761
2762 error_handler_free:
2763         v4l2_ctrl_handler_free(ov5670->sd.ctrl_handler);
2764
2765 error_mutex_destroy:
2766         mutex_destroy(&ov5670->mutex);
2767
2768 error_power_off:
2769         if (full_power)
2770                 ov5670_runtime_suspend(&client->dev);
2771
2772 error_endpoint:
2773         v4l2_fwnode_endpoint_free(&ov5670->endpoint);
2774
2775         return ret;
2776 }
2777
2778 static void ov5670_remove(struct i2c_client *client)
2779 {
2780         struct v4l2_subdev *sd = i2c_get_clientdata(client);
2781         struct ov5670 *ov5670 = to_ov5670(sd);
2782
2783         v4l2_async_unregister_subdev(sd);
2784         media_entity_cleanup(&sd->entity);
2785         v4l2_ctrl_handler_free(sd->ctrl_handler);
2786         mutex_destroy(&ov5670->mutex);
2787
2788         pm_runtime_disable(&client->dev);
2789         ov5670_runtime_suspend(&client->dev);
2790
2791         v4l2_fwnode_endpoint_free(&ov5670->endpoint);
2792 }
2793
2794 static const struct dev_pm_ops ov5670_pm_ops = {
2795         SET_RUNTIME_PM_OPS(ov5670_runtime_suspend, ov5670_runtime_resume, NULL)
2796 };
2797
2798 #ifdef CONFIG_ACPI
2799 static const struct acpi_device_id ov5670_acpi_ids[] = {
2800         { "INT3479" },
2801         { /* sentinel */ }
2802 };
2803
2804 MODULE_DEVICE_TABLE(acpi, ov5670_acpi_ids);
2805 #endif
2806
2807 static const struct of_device_id ov5670_of_ids[] = {
2808         { .compatible = "ovti,ov5670" },
2809         { /* sentinel */ }
2810 };
2811 MODULE_DEVICE_TABLE(of, ov5670_of_ids);
2812
2813 static struct i2c_driver ov5670_i2c_driver = {
2814         .driver = {
2815                 .name = "ov5670",
2816                 .pm = &ov5670_pm_ops,
2817                 .acpi_match_table = ACPI_PTR(ov5670_acpi_ids),
2818                 .of_match_table = ov5670_of_ids,
2819         },
2820         .probe = ov5670_probe,
2821         .remove = ov5670_remove,
2822         .flags = I2C_DRV_ACPI_WAIVE_D0_PROBE,
2823 };
2824
2825 module_i2c_driver(ov5670_i2c_driver);
2826
2827 MODULE_AUTHOR("Rapolu, Chiranjeevi");
2828 MODULE_AUTHOR("Yang, Hyungwoo");
2829 MODULE_DESCRIPTION("Omnivision ov5670 sensor driver");
2830 MODULE_LICENSE("GPL v2");