drivers/media/i2c/ov5675.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 // Copyright (c) 2019 Intel Corporation.
   3
   4 #include <asm/unaligned.h>
   5 #include <linux/acpi.h>
   6 #include <linux/delay.h>
   7 #include <linux/i2c.h>
   8 #include <linux/module.h>
   9 #include <linux/pm_runtime.h>
  10 #include <media/v4l2-ctrls.h>
  11 #include <media/v4l2-device.h>
  12 #include <media/v4l2-fwnode.h>
  13
  14 #define OV5675_REG_VALUE_08BIT          1
  15 #define OV5675_REG_VALUE_16BIT          2
  16 #define OV5675_REG_VALUE_24BIT          3
  17
  18 #define OV5675_LINK_FREQ_450MHZ         450000000ULL
  19 #define OV5675_SCLK                     90000000LL
  20 #define OV5675_MCLK                     19200000
  21 #define OV5675_DATA_LANES               2
  22 #define OV5675_RGB_DEPTH                10
  23
  24 #define OV5675_REG_CHIP_ID              0x300a
  25 #define OV5675_CHIP_ID                  0x5675
  26
  27 #define OV5675_REG_MODE_SELECT          0x0100
  28 #define OV5675_MODE_STANDBY             0x00
  29 #define OV5675_MODE_STREAMING           0x01
  30
  31 /* vertical-timings from sensor */
  32 #define OV5675_REG_VTS                  0x380e
  33 #define OV5675_VTS_30FPS                0x07e4
  34 #define OV5675_VTS_30FPS_MIN            0x07e4
  35 #define OV5675_VTS_MAX                  0x7fff
  36
  37 /* horizontal-timings from sensor */
  38 #define OV5675_REG_HTS                  0x380c
  39
  40 /* Exposure controls from sensor */
  41 #define OV5675_REG_EXPOSURE             0x3500
  42 #define OV5675_EXPOSURE_MIN             4
  43 #define OV5675_EXPOSURE_MAX_MARGIN      4
  44 #define OV5675_EXPOSURE_STEP            1
  45
  46 /* Analog gain controls from sensor */
  47 #define OV5675_REG_ANALOG_GAIN          0x3508
  48 #define OV5675_ANAL_GAIN_MIN            128
  49 #define OV5675_ANAL_GAIN_MAX            2047
  50 #define OV5675_ANAL_GAIN_STEP           1
  51
  52 /* Digital gain controls from sensor */
  53 #define OV5675_REG_MWB_R_GAIN           0x5019
  54 #define OV5675_REG_MWB_G_GAIN           0x501b
  55 #define OV5675_REG_MWB_B_GAIN           0x501d
  56 #define OV5675_DGTL_GAIN_MIN            0
  57 #define OV5675_DGTL_GAIN_MAX            4095
  58 #define OV5675_DGTL_GAIN_STEP           1
  59 #define OV5675_DGTL_GAIN_DEFAULT        1024
  60
  61 /* Test Pattern Control */
  62 #define OV5675_REG_TEST_PATTERN         0x4503
  63 #define OV5675_TEST_PATTERN_ENABLE      BIT(7)
  64 #define OV5675_TEST_PATTERN_BAR_SHIFT   2
  65
  66 /* Flip Mirror Controls from sensor */
  67 #define OV5675_REG_FORMAT1              0x3820
  68 #define OV5675_REG_FORMAT2              0x373d
  69
  70 #define to_ov5675(_sd)                  container_of(_sd, struct ov5675, sd)
  71
  72 enum {
  73         OV5675_LINK_FREQ_900MBPS,
  74 };
  75
  76 struct ov5675_reg {
  77         u16 address;
  78         u8 val;
  79 };
  80
  81 struct ov5675_reg_list {
  82         u32 num_of_regs;
  83         const struct ov5675_reg *regs;
  84 };
  85
  86 struct ov5675_link_freq_config {
  87         const struct ov5675_reg_list reg_list;
  88 };
  89
  90 struct ov5675_mode {
  91         /* Frame width in pixels */
  92         u32 width;
  93
  94         /* Frame height in pixels */
  95         u32 height;
  96
  97         /* Horizontal timining size */
  98         u32 hts;
  99
 100         /* Default vertical timining size */
 101         u32 vts_def;
 102
 103         /* Min vertical timining size */
 104         u32 vts_min;
 105
 106         /* Link frequency needed for this resolution */
 107         u32 link_freq_index;
 108
 109         /* Sensor register settings for this resolution */
 110         const struct ov5675_reg_list reg_list;
 111 };
 112
 113 static const struct ov5675_reg mipi_data_rate_900mbps[] = {
 114         {0x0103, 0x01},
 115         {0x0100, 0x00},
 116         {0x0300, 0x04},
 117         {0x0302, 0x8d},
 118         {0x0303, 0x00},
 119         {0x030d, 0x26},
 120 };
 121
 122 static const struct ov5675_reg mode_2592x1944_regs[] = {
 123         {0x3002, 0x21},
 124         {0x3107, 0x23},
 125         {0x3501, 0x20},
 126         {0x3503, 0x0c},
 127         {0x3508, 0x03},
 128         {0x3509, 0x00},
 129         {0x3600, 0x66},
 130         {0x3602, 0x30},
 131         {0x3610, 0xa5},
 132         {0x3612, 0x93},
 133         {0x3620, 0x80},
 134         {0x3642, 0x0e},
 135         {0x3661, 0x00},
 136         {0x3662, 0x10},
 137         {0x3664, 0xf3},
 138         {0x3665, 0x9e},
 139         {0x3667, 0xa5},
 140         {0x366e, 0x55},
 141         {0x366f, 0x55},
 142         {0x3670, 0x11},
 143         {0x3671, 0x11},
 144         {0x3672, 0x11},
 145         {0x3673, 0x11},
 146         {0x3714, 0x24},
 147         {0x371a, 0x3e},
 148         {0x3733, 0x10},
 149         {0x3734, 0x00},
 150         {0x373d, 0x24},
 151         {0x3764, 0x20},
 152         {0x3765, 0x20},
 153         {0x3766, 0x12},
 154         {0x37a1, 0x14},
 155         {0x37a8, 0x1c},
 156         {0x37ab, 0x0f},
 157         {0x37c2, 0x04},
 158         {0x37cb, 0x00},
 159         {0x37cc, 0x00},
 160         {0x37cd, 0x00},
 161         {0x37ce, 0x00},
 162         {0x37d8, 0x02},
 163         {0x37d9, 0x08},
 164         {0x37dc, 0x04},
 165         {0x3800, 0x00},
 166         {0x3801, 0x00},
 167         {0x3802, 0x00},
 168         {0x3803, 0x04},
 169         {0x3804, 0x0a},
 170         {0x3805, 0x3f},
 171         {0x3806, 0x07},
 172         {0x3807, 0xb3},
 173         {0x3808, 0x0a},
 174         {0x3809, 0x20},
 175         {0x380a, 0x07},
 176         {0x380b, 0x98},
 177         {0x380c, 0x02},
 178         {0x380d, 0xee},
 179         {0x380e, 0x07},
 180         {0x380f, 0xe4},
 181         {0x3811, 0x10},
 182         {0x3813, 0x0d},
 183         {0x3814, 0x01},
 184         {0x3815, 0x01},
 185         {0x3816, 0x01},
 186         {0x3817, 0x01},
 187         {0x381e, 0x02},
 188         {0x3820, 0x88},
 189         {0x3821, 0x01},
 190         {0x3832, 0x04},
 191         {0x3c80, 0x01},
 192         {0x3c82, 0x00},
 193         {0x3c83, 0xc8},
 194         {0x3c8c, 0x0f},
 195         {0x3c8d, 0xa0},
 196         {0x3c90, 0x07},
 197         {0x3c91, 0x00},
 198         {0x3c92, 0x00},
 199         {0x3c93, 0x00},
 200         {0x3c94, 0xd0},
 201         {0x3c95, 0x50},
 202         {0x3c96, 0x35},
 203         {0x3c97, 0x00},
 204         {0x4001, 0xe0},
 205         {0x4008, 0x02},
 206         {0x4009, 0x0d},
 207         {0x400f, 0x80},
 208         {0x4013, 0x02},
 209         {0x4040, 0x00},
 210         {0x4041, 0x07},
 211         {0x404c, 0x50},
 212         {0x404e, 0x20},
 213         {0x4500, 0x06},
 214         {0x4503, 0x00},
 215         {0x450a, 0x04},
 216         {0x4809, 0x04},
 217         {0x480c, 0x12},
 218         {0x4819, 0x70},
 219         {0x4825, 0x32},
 220         {0x4826, 0x32},
 221         {0x482a, 0x06},
 222         {0x4833, 0x08},
 223         {0x4837, 0x0d},
 224         {0x5000, 0x77},
 225         {0x5b00, 0x01},
 226         {0x5b01, 0x10},
 227         {0x5b02, 0x01},
 228         {0x5b03, 0xdb},
 229         {0x5b05, 0x6c},
 230         {0x5e10, 0xfc},
 231         {0x3500, 0x00},
 232         {0x3501, 0x3E},
 233         {0x3502, 0x60},
 234         {0x3503, 0x08},
 235         {0x3508, 0x04},
 236         {0x3509, 0x00},
 237         {0x3832, 0x48},
 238         {0x5780, 0x3e},
 239         {0x5781, 0x0f},
 240         {0x5782, 0x44},
 241         {0x5783, 0x02},
 242         {0x5784, 0x01},
 243         {0x5785, 0x01},
 244         {0x5786, 0x00},
 245         {0x5787, 0x04},
 246         {0x5788, 0x02},
 247         {0x5789, 0x0f},
 248         {0x578a, 0xfd},
 249         {0x578b, 0xf5},
 250         {0x578c, 0xf5},
 251         {0x578d, 0x03},
 252         {0x578e, 0x08},
 253         {0x578f, 0x0c},
 254         {0x5790, 0x08},
 255         {0x5791, 0x06},
 256         {0x5792, 0x00},
 257         {0x5793, 0x52},
 258         {0x5794, 0xa3},
 259         {0x4003, 0x40},
 260         {0x3107, 0x01},
 261         {0x3c80, 0x08},
 262         {0x3c83, 0xb1},
 263         {0x3c8c, 0x10},
 264         {0x3c8d, 0x00},
 265         {0x3c90, 0x00},
 266         {0x3c94, 0x00},
 267         {0x3c95, 0x00},
 268         {0x3c96, 0x00},
 269         {0x37cb, 0x09},
 270         {0x37cc, 0x15},
 271         {0x37cd, 0x1f},
 272         {0x37ce, 0x1f},
 273 };
 274
 275 static const struct ov5675_reg mode_1296x972_regs[] = {
 276         {0x3002, 0x21},
 277         {0x3107, 0x23},
 278         {0x3501, 0x20},
 279         {0x3503, 0x0c},
 280         {0x3508, 0x03},
 281         {0x3509, 0x00},
 282         {0x3600, 0x66},
 283         {0x3602, 0x30},
 284         {0x3610, 0xa5},
 285         {0x3612, 0x93},
 286         {0x3620, 0x80},
 287         {0x3642, 0x0e},
 288         {0x3661, 0x00},
 289         {0x3662, 0x08},
 290         {0x3664, 0xf3},
 291         {0x3665, 0x9e},
 292         {0x3667, 0xa5},
 293         {0x366e, 0x55},
 294         {0x366f, 0x55},
 295         {0x3670, 0x11},
 296         {0x3671, 0x11},
 297         {0x3672, 0x11},
 298         {0x3673, 0x11},
 299         {0x3714, 0x28},
 300         {0x371a, 0x3e},
 301         {0x3733, 0x10},
 302         {0x3734, 0x00},
 303         {0x373d, 0x24},
 304         {0x3764, 0x20},
 305         {0x3765, 0x20},
 306         {0x3766, 0x12},
 307         {0x37a1, 0x14},
 308         {0x37a8, 0x1c},
 309         {0x37ab, 0x0f},
 310         {0x37c2, 0x14},
 311         {0x37cb, 0x00},
 312         {0x37cc, 0x00},
 313         {0x37cd, 0x00},
 314         {0x37ce, 0x00},
 315         {0x37d8, 0x02},
 316         {0x37d9, 0x04},
 317         {0x37dc, 0x04},
 318         {0x3800, 0x00},
 319         {0x3801, 0x00},
 320         {0x3802, 0x00},
 321         {0x3803, 0x00},
 322         {0x3804, 0x0a},
 323         {0x3805, 0x3f},
 324         {0x3806, 0x07},
 325         {0x3807, 0xb7},
 326         {0x3808, 0x05},
 327         {0x3809, 0x10},
 328         {0x380a, 0x03},
 329         {0x380b, 0xcc},
 330         {0x380c, 0x02},
 331         {0x380d, 0xee},
 332         {0x380e, 0x07},
 333         {0x380f, 0xd0},
 334         {0x3811, 0x08},
 335         {0x3813, 0x0d},
 336         {0x3814, 0x03},
 337         {0x3815, 0x01},
 338         {0x3816, 0x03},
 339         {0x3817, 0x01},
 340         {0x381e, 0x02},
 341         {0x3820, 0x8b},
 342         {0x3821, 0x01},
 343         {0x3832, 0x04},
 344         {0x3c80, 0x01},
 345         {0x3c82, 0x00},
 346         {0x3c83, 0xc8},
 347         {0x3c8c, 0x0f},
 348         {0x3c8d, 0xa0},
 349         {0x3c90, 0x07},
 350         {0x3c91, 0x00},
 351         {0x3c92, 0x00},
 352         {0x3c93, 0x00},
 353         {0x3c94, 0xd0},
 354         {0x3c95, 0x50},
 355         {0x3c96, 0x35},
 356         {0x3c97, 0x00},
 357         {0x4001, 0xe0},
 358         {0x4008, 0x00},
 359         {0x4009, 0x07},
 360         {0x400f, 0x80},
 361         {0x4013, 0x02},
 362         {0x4040, 0x00},
 363         {0x4041, 0x03},
 364         {0x404c, 0x50},
 365         {0x404e, 0x20},
 366         {0x4500, 0x06},
 367         {0x4503, 0x00},
 368         {0x450a, 0x04},
 369         {0x4809, 0x04},
 370         {0x480c, 0x12},
 371         {0x4819, 0x70},
 372         {0x4825, 0x32},
 373         {0x4826, 0x32},
 374         {0x482a, 0x06},
 375         {0x4833, 0x08},
 376         {0x4837, 0x0d},
 377         {0x5000, 0x77},
 378         {0x5b00, 0x01},
 379         {0x5b01, 0x10},
 380         {0x5b02, 0x01},
 381         {0x5b03, 0xdb},
 382         {0x5b05, 0x6c},
 383         {0x5e10, 0xfc},
 384         {0x3500, 0x00},
 385         {0x3501, 0x1F},
 386         {0x3502, 0x20},
 387         {0x3503, 0x08},
 388         {0x3508, 0x04},
 389         {0x3509, 0x00},
 390         {0x3832, 0x48},
 391         {0x5780, 0x3e},
 392         {0x5781, 0x0f},
 393         {0x5782, 0x44},
 394         {0x5783, 0x02},
 395         {0x5784, 0x01},
 396         {0x5785, 0x01},
 397         {0x5786, 0x00},
 398         {0x5787, 0x04},
 399         {0x5788, 0x02},
 400         {0x5789, 0x0f},
 401         {0x578a, 0xfd},
 402         {0x578b, 0xf5},
 403         {0x578c, 0xf5},
 404         {0x578d, 0x03},
 405         {0x578e, 0x08},
 406         {0x578f, 0x0c},
 407         {0x5790, 0x08},
 408         {0x5791, 0x06},
 409         {0x5792, 0x00},
 410         {0x5793, 0x52},
 411         {0x5794, 0xa3},
 412         {0x4003, 0x40},
 413         {0x3107, 0x01},
 414         {0x3c80, 0x08},
 415         {0x3c83, 0xb1},
 416         {0x3c8c, 0x10},
 417         {0x3c8d, 0x00},
 418         {0x3c90, 0x00},
 419         {0x3c94, 0x00},
 420         {0x3c95, 0x00},
 421         {0x3c96, 0x00},
 422         {0x37cb, 0x09},
 423         {0x37cc, 0x15},
 424         {0x37cd, 0x1f},
 425         {0x37ce, 0x1f},
 426 };
 427
 428 static const char * const ov5675_test_pattern_menu[] = {
 429         "Disabled",
 430         "Standard Color Bar",
 431         "Top-Bottom Darker Color Bar",
 432         "Right-Left Darker Color Bar",
 433         "Bottom-Top Darker Color Bar"
 434 };
 435
 436 static const s64 link_freq_menu_items[] = {
 437         OV5675_LINK_FREQ_450MHZ,
 438 };
 439
 440 static const struct ov5675_link_freq_config link_freq_configs[] = {
 441         [OV5675_LINK_FREQ_900MBPS] = {
 442                 .reg_list = {
 443                         .num_of_regs = ARRAY_SIZE(mipi_data_rate_900mbps),
 444                         .regs = mipi_data_rate_900mbps,
 445                 }
 446         }
 447 };
 448
 449 static const struct ov5675_mode supported_modes[] = {
 450         {
 451                 .width = 2592,
 452                 .height = 1944,
 453                 .hts = 1500,
 454                 .vts_def = OV5675_VTS_30FPS,
 455                 .vts_min = OV5675_VTS_30FPS_MIN,
 456                 .reg_list = {
 457                         .num_of_regs = ARRAY_SIZE(mode_2592x1944_regs),
 458                         .regs = mode_2592x1944_regs,
 459                 },
 460                 .link_freq_index = OV5675_LINK_FREQ_900MBPS,
 461         },
 462         {
 463                 .width = 1296,
 464                 .height = 972,
 465                 .hts = 1500,
 466                 .vts_def = OV5675_VTS_30FPS,
 467                 .vts_min = OV5675_VTS_30FPS_MIN,
 468                 .reg_list = {
 469                         .num_of_regs = ARRAY_SIZE(mode_1296x972_regs),
 470                         .regs = mode_1296x972_regs,
 471                 },
 472                 .link_freq_index = OV5675_LINK_FREQ_900MBPS,
 473         }
 474 };
 475
 476 struct ov5675 {
 477         struct v4l2_subdev sd;
 478         struct media_pad pad;
 479         struct v4l2_ctrl_handler ctrl_handler;
 480
 481         /* V4L2 Controls */
 482         struct v4l2_ctrl *link_freq;
 483         struct v4l2_ctrl *pixel_rate;
 484         struct v4l2_ctrl *vblank;
 485         struct v4l2_ctrl *hblank;
 486         struct v4l2_ctrl *exposure;
 487
 488         /* Current mode */
 489         const struct ov5675_mode *cur_mode;
 490
 491         /* To serialize asynchronus callbacks */
 492         struct mutex mutex;
 493
 494         /* Streaming on/off */
 495         bool streaming;
 496 };
 497
 498 static u64 to_pixel_rate(u32 f_index)
 499 {
 500         u64 pixel_rate = link_freq_menu_items[f_index] * 2 * OV5675_DATA_LANES;
 501
 502         do_div(pixel_rate, OV5675_RGB_DEPTH);
 503
 504         return pixel_rate;
 505 }
 506
 507 static u64 to_pixels_per_line(u32 hts, u32 f_index)
 508 {
 509         u64 ppl = hts * to_pixel_rate(f_index);
 510
 511         do_div(ppl, OV5675_SCLK);
 512
 513         return ppl;
 514 }
 515
 516 static int ov5675_read_reg(struct ov5675 *ov5675, u16 reg, u16 len, u32 *val)
 517 {
 518         struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd);
 519         struct i2c_msg msgs[2];
 520         u8 addr_buf[2];
 521         u8 data_buf[4] = {0};
 522         int ret;
 523
 524         if (len > 4)
 525                 return -EINVAL;
 526
 527         put_unaligned_be16(reg, addr_buf);
 528         msgs[0].addr = client->addr;
 529         msgs[0].flags = 0;
 530         msgs[0].len = sizeof(addr_buf);
 531         msgs[0].buf = addr_buf;
 532         msgs[1].addr = client->addr;
 533         msgs[1].flags = I2C_M_RD;
 534         msgs[1].len = len;
 535         msgs[1].buf = &data_buf[4 - len];
 536
 537         ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
 538         if (ret != ARRAY_SIZE(msgs))
 539                 return -EIO;
 540
 541         *val = get_unaligned_be32(data_buf);
 542
 543         return 0;
 544 }
 545
 546 static int ov5675_write_reg(struct ov5675 *ov5675, u16 reg, u16 len, u32 val)
 547 {
 548         struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd);
 549         u8 buf[6];
 550
 551         if (len > 4)
 552                 return -EINVAL;
 553
 554         put_unaligned_be16(reg, buf);
 555         put_unaligned_be32(val << 8 * (4 - len), buf + 2);
 556         if (i2c_master_send(client, buf, len + 2) != len + 2)
 557                 return -EIO;
 558
 559         return 0;
 560 }
 561
 562 static int ov5675_write_reg_list(struct ov5675 *ov5675,
 563                                  const struct ov5675_reg_list *r_list)
 564 {
 565         struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd);
 566         unsigned int i;
 567         int ret;
 568
 569         for (i = 0; i < r_list->num_of_regs; i++) {
 570                 ret = ov5675_write_reg(ov5675, r_list->regs[i].address, 1,
 571                                        r_list->regs[i].val);
 572                 if (ret) {
 573                         dev_err_ratelimited(&client->dev,
 574                                     "failed to write reg 0x%4.4x. error = %d",
 575                                     r_list->regs[i].address, ret);
 576                         return ret;
 577                 }
 578         }
 579
 580         return 0;
 581 }
 582
 583 static int ov5675_update_digital_gain(struct ov5675 *ov5675, u32 d_gain)
 584 {
 585         int ret;
 586
 587         ret = ov5675_write_reg(ov5675, OV5675_REG_MWB_R_GAIN,
 588                                OV5675_REG_VALUE_16BIT, d_gain);
 589         if (ret)
 590                 return ret;
 591
 592         ret = ov5675_write_reg(ov5675, OV5675_REG_MWB_G_GAIN,
 593                                OV5675_REG_VALUE_16BIT, d_gain);
 594         if (ret)
 595                 return ret;
 596
 597         return ov5675_write_reg(ov5675, OV5675_REG_MWB_B_GAIN,
 598                                 OV5675_REG_VALUE_16BIT, d_gain);
 599 }
 600
 601 static int ov5675_test_pattern(struct ov5675 *ov5675, u32 pattern)
 602 {
 603         if (pattern)
 604                 pattern = (pattern - 1) << OV5675_TEST_PATTERN_BAR_SHIFT |
 605                           OV5675_TEST_PATTERN_ENABLE;
 606
 607         return ov5675_write_reg(ov5675, OV5675_REG_TEST_PATTERN,
 608                                 OV5675_REG_VALUE_08BIT, pattern);
 609 }
 610
 611 /*
 612  * OV5675 supports keeping the pixel order by mirror and flip function
 613  * The Bayer order isn't affected by the flip controls
 614  */
 615 static int ov5675_set_ctrl_hflip(struct ov5675 *ov5675, u32 ctrl_val)
 616 {
 617         int ret;
 618         u32 val;
 619
 620         ret = ov5675_read_reg(ov5675, OV5675_REG_FORMAT1,
 621                               OV5675_REG_VALUE_08BIT, &val);
 622         if (ret)
 623                 return ret;
 624
 625         return ov5675_write_reg(ov5675, OV5675_REG_FORMAT1,
 626                                 OV5675_REG_VALUE_08BIT,
 627                                 ctrl_val ? val & ~BIT(3) : val);
 628 }
 629
 630 static int ov5675_set_ctrl_vflip(struct ov5675 *ov5675, u8 ctrl_val)
 631 {
 632         int ret;
 633         u32 val;
 634
 635         ret = ov5675_read_reg(ov5675, OV5675_REG_FORMAT1,
 636                               OV5675_REG_VALUE_08BIT, &val);
 637         if (ret)
 638                 return ret;
 639
 640         ret = ov5675_write_reg(ov5675, OV5675_REG_FORMAT1,
 641                                OV5675_REG_VALUE_08BIT,
 642                                ctrl_val ? val | BIT(4) | BIT(5)  : val);
 643
 644         if (ret)
 645                 return ret;
 646
 647         ret = ov5675_read_reg(ov5675, OV5675_REG_FORMAT2,
 648                               OV5675_REG_VALUE_08BIT, &val);
 649
 650         if (ret)
 651                 return ret;
 652
 653         return ov5675_write_reg(ov5675, OV5675_REG_FORMAT2,
 654                                 OV5675_REG_VALUE_08BIT,
 655                                 ctrl_val ? val | BIT(1) : val);
 656 }
 657
 658 static int ov5675_set_ctrl(struct v4l2_ctrl *ctrl)
 659 {
 660         struct ov5675 *ov5675 = container_of(ctrl->handler,
 661                                              struct ov5675, ctrl_handler);
 662         struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd);
 663         s64 exposure_max;
 664         int ret = 0;
 665
 666         /* Propagate change of current control to all related controls */
 667         if (ctrl->id == V4L2_CID_VBLANK) {
 668                 /* Update max exposure while meeting expected vblanking */
 669                 exposure_max = (ov5675->cur_mode->height + ctrl->val -
 670                                OV5675_EXPOSURE_MAX_MARGIN) / 2;
 671                 __v4l2_ctrl_modify_range(ov5675->exposure,
 672                                          ov5675->exposure->minimum,
 673                                          exposure_max, ov5675->exposure->step,
 674                                          exposure_max);
 675         }
 676
 677         /* V4L2 controls values will be applied only when power is already up */
 678         if (!pm_runtime_get_if_in_use(&client->dev))
 679                 return 0;
 680
 681         switch (ctrl->id) {
 682         case V4L2_CID_ANALOGUE_GAIN:
 683                 ret = ov5675_write_reg(ov5675, OV5675_REG_ANALOG_GAIN,
 684                                        OV5675_REG_VALUE_16BIT, ctrl->val);
 685                 break;
 686
 687         case V4L2_CID_DIGITAL_GAIN:
 688                 ret = ov5675_update_digital_gain(ov5675, ctrl->val);
 689                 break;
 690
 691         case V4L2_CID_EXPOSURE:
 692                 /* 3 least significant bits of expsoure are fractional part */
 693                 ret = ov5675_write_reg(ov5675, OV5675_REG_EXPOSURE,
 694                                        OV5675_REG_VALUE_24BIT, ctrl->val << 3);
 695                 break;
 696
 697         case V4L2_CID_VBLANK:
 698                 ret = ov5675_write_reg(ov5675, OV5675_REG_VTS,
 699                                        OV5675_REG_VALUE_16BIT,
 700                                        ov5675->cur_mode->height + ctrl->val +
 701                                        10);
 702                 break;
 703
 704         case V4L2_CID_TEST_PATTERN:
 705                 ret = ov5675_test_pattern(ov5675, ctrl->val);
 706                 break;
 707
 708         case V4L2_CID_HFLIP:
 709                 ov5675_set_ctrl_hflip(ov5675, ctrl->val);
 710                 break;
 711
 712         case V4L2_CID_VFLIP:
 713                 ov5675_set_ctrl_vflip(ov5675, ctrl->val);
 714                 break;
 715
 716         default:
 717                 ret = -EINVAL;
 718                 break;
 719         }
 720
 721         pm_runtime_put(&client->dev);
 722
 723         return ret;
 724 }
 725
 726 static const struct v4l2_ctrl_ops ov5675_ctrl_ops = {
 727         .s_ctrl = ov5675_set_ctrl,
 728 };
 729
 730 static int ov5675_init_controls(struct ov5675 *ov5675)
 731 {
 732         struct v4l2_ctrl_handler *ctrl_hdlr;
 733         s64 exposure_max, h_blank;
 734         int ret;
 735
 736         ctrl_hdlr = &ov5675->ctrl_handler;
 737         ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);
 738         if (ret)
 739                 return ret;
 740
 741         ctrl_hdlr->lock = &ov5675->mutex;
 742         ov5675->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, &ov5675_ctrl_ops,
 743                                            V4L2_CID_LINK_FREQ,
 744                                            ARRAY_SIZE(link_freq_menu_items) - 1,
 745                                            0, link_freq_menu_items);
 746         if (ov5675->link_freq)
 747                 ov5675->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
 748
 749         ov5675->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops,
 750                                        V4L2_CID_PIXEL_RATE, 0,
 751                                        to_pixel_rate(OV5675_LINK_FREQ_900MBPS),
 752                                        1,
 753                                        to_pixel_rate(OV5675_LINK_FREQ_900MBPS));
 754         ov5675->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops,
 755                           V4L2_CID_VBLANK,
 756                           ov5675->cur_mode->vts_min - ov5675->cur_mode->height,
 757                           OV5675_VTS_MAX - ov5675->cur_mode->height, 1,
 758                           ov5675->cur_mode->vts_def - ov5675->cur_mode->height);
 759         h_blank = to_pixels_per_line(ov5675->cur_mode->hts,
 760                   ov5675->cur_mode->link_freq_index) - ov5675->cur_mode->width;
 761         ov5675->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops,
 762                                            V4L2_CID_HBLANK, h_blank, h_blank, 1,
 763                                            h_blank);
 764         if (ov5675->hblank)
 765                 ov5675->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
 766
 767         v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
 768                           OV5675_ANAL_GAIN_MIN, OV5675_ANAL_GAIN_MAX,
 769                           OV5675_ANAL_GAIN_STEP, OV5675_ANAL_GAIN_MIN);
 770         v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
 771                           OV5675_DGTL_GAIN_MIN, OV5675_DGTL_GAIN_MAX,
 772                           OV5675_DGTL_GAIN_STEP, OV5675_DGTL_GAIN_DEFAULT);
 773         exposure_max = (ov5675->cur_mode->vts_def -
 774                         OV5675_EXPOSURE_MAX_MARGIN) / 2;
 775         ov5675->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops,
 776                                              V4L2_CID_EXPOSURE,
 777                                              OV5675_EXPOSURE_MIN, exposure_max,
 778                                              OV5675_EXPOSURE_STEP,
 779                                              exposure_max);
 780         v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov5675_ctrl_ops,
 781                                      V4L2_CID_TEST_PATTERN,
 782                                      ARRAY_SIZE(ov5675_test_pattern_menu) - 1,
 783                                      0, 0, ov5675_test_pattern_menu);
 784         v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops,
 785                           V4L2_CID_HFLIP, 0, 1, 1, 0);
 786         v4l2_ctrl_new_std(ctrl_hdlr, &ov5675_ctrl_ops,
 787                           V4L2_CID_VFLIP, 0, 1, 1, 0);
 788
 789         if (ctrl_hdlr->error)
 790                 return ctrl_hdlr->error;
 791
 792         ov5675->sd.ctrl_handler = ctrl_hdlr;
 793
 794         return 0;
 795 }
 796
 797 static void ov5675_update_pad_format(const struct ov5675_mode *mode,
 798                                      struct v4l2_mbus_framefmt *fmt)
 799 {
 800         fmt->width = mode->width;
 801         fmt->height = mode->height;
 802         fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
 803         fmt->field = V4L2_FIELD_NONE;
 804 }
 805
 806 static int ov5675_start_streaming(struct ov5675 *ov5675)
 807 {
 808         struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd);
 809         const struct ov5675_reg_list *reg_list;
 810         int link_freq_index, ret;
 811
 812         link_freq_index = ov5675->cur_mode->link_freq_index;
 813         reg_list = &link_freq_configs[link_freq_index].reg_list;
 814         ret = ov5675_write_reg_list(ov5675, reg_list);
 815         if (ret) {
 816                 dev_err(&client->dev, "failed to set plls");
 817                 return ret;
 818         }
 819
 820         reg_list = &ov5675->cur_mode->reg_list;
 821         ret = ov5675_write_reg_list(ov5675, reg_list);
 822         if (ret) {
 823                 dev_err(&client->dev, "failed to set mode");
 824                 return ret;
 825         }
 826
 827         ret = __v4l2_ctrl_handler_setup(ov5675->sd.ctrl_handler);
 828         if (ret)
 829                 return ret;
 830
 831         ret = ov5675_write_reg(ov5675, OV5675_REG_MODE_SELECT,
 832                                OV5675_REG_VALUE_08BIT, OV5675_MODE_STREAMING);
 833         if (ret) {
 834                 dev_err(&client->dev, "failed to set stream");
 835                 return ret;
 836         }
 837
 838         return 0;
 839 }
 840
 841 static void ov5675_stop_streaming(struct ov5675 *ov5675)
 842 {
 843         struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd);
 844
 845         if (ov5675_write_reg(ov5675, OV5675_REG_MODE_SELECT,
 846                              OV5675_REG_VALUE_08BIT, OV5675_MODE_STANDBY))
 847                 dev_err(&client->dev, "failed to set stream");
 848 }
 849
 850 static int ov5675_set_stream(struct v4l2_subdev *sd, int enable)
 851 {
 852         struct ov5675 *ov5675 = to_ov5675(sd);
 853         struct i2c_client *client = v4l2_get_subdevdata(sd);
 854         int ret = 0;
 855
 856         if (ov5675->streaming == enable)
 857                 return 0;
 858
 859         mutex_lock(&ov5675->mutex);
 860         if (enable) {
 861                 ret = pm_runtime_get_sync(&client->dev);
 862                 if (ret < 0) {
 863                         pm_runtime_put_noidle(&client->dev);
 864                         mutex_unlock(&ov5675->mutex);
 865                         return ret;
 866                 }
 867
 868                 ret = ov5675_start_streaming(ov5675);
 869                 if (ret) {
 870                         enable = 0;
 871                         ov5675_stop_streaming(ov5675);
 872                         pm_runtime_put(&client->dev);
 873                 }
 874         } else {
 875                 ov5675_stop_streaming(ov5675);
 876                 pm_runtime_put(&client->dev);
 877         }
 878
 879         ov5675->streaming = enable;
 880         mutex_unlock(&ov5675->mutex);
 881
 882         return ret;
 883 }
 884
 885 static int __maybe_unused ov5675_suspend(struct device *dev)
 886 {
 887         struct i2c_client *client = to_i2c_client(dev);
 888         struct v4l2_subdev *sd = i2c_get_clientdata(client);
 889         struct ov5675 *ov5675 = to_ov5675(sd);
 890
 891         mutex_lock(&ov5675->mutex);
 892         if (ov5675->streaming)
 893                 ov5675_stop_streaming(ov5675);
 894
 895         mutex_unlock(&ov5675->mutex);
 896
 897         return 0;
 898 }
 899
 900 static int __maybe_unused ov5675_resume(struct device *dev)
 901 {
 902         struct i2c_client *client = to_i2c_client(dev);
 903         struct v4l2_subdev *sd = i2c_get_clientdata(client);
 904         struct ov5675 *ov5675 = to_ov5675(sd);
 905         int ret;
 906
 907         mutex_lock(&ov5675->mutex);
 908         if (ov5675->streaming) {
 909                 ret = ov5675_start_streaming(ov5675);
 910                 if (ret) {
 911                         ov5675->streaming = false;
 912                         ov5675_stop_streaming(ov5675);
 913                         mutex_unlock(&ov5675->mutex);
 914                         return ret;
 915                 }
 916         }
 917
 918         mutex_unlock(&ov5675->mutex);
 919
 920         return 0;
 921 }
 922
 923 static int ov5675_set_format(struct v4l2_subdev *sd,
 924                              struct v4l2_subdev_pad_config *cfg,
 925                              struct v4l2_subdev_format *fmt)
 926 {
 927         struct ov5675 *ov5675 = to_ov5675(sd);
 928         const struct ov5675_mode *mode;
 929         s32 vblank_def, h_blank;
 930
 931         mode = v4l2_find_nearest_size(supported_modes,
 932                                       ARRAY_SIZE(supported_modes), width,
 933                                       height, fmt->format.width,
 934                                       fmt->format.height);
 935
 936         mutex_lock(&ov5675->mutex);
 937         ov5675_update_pad_format(mode, &fmt->format);
 938         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
 939                 *v4l2_subdev_get_try_format(sd, cfg, fmt->pad) = fmt->format;
 940         } else {
 941                 ov5675->cur_mode = mode;
 942                 __v4l2_ctrl_s_ctrl(ov5675->link_freq, mode->link_freq_index);
 943                 __v4l2_ctrl_s_ctrl_int64(ov5675->pixel_rate,
 944                                          to_pixel_rate(mode->link_freq_index));
 945
 946                 /* Update limits and set FPS to default */
 947                 vblank_def = mode->vts_def - mode->height;
 948                 __v4l2_ctrl_modify_range(ov5675->vblank,
 949                                          mode->vts_min - mode->height,
 950                                          OV5675_VTS_MAX - mode->height, 1,
 951                                          vblank_def);
 952                 __v4l2_ctrl_s_ctrl(ov5675->vblank, vblank_def);
 953                 h_blank = to_pixels_per_line(mode->hts, mode->link_freq_index) -
 954                           mode->width;
 955                 __v4l2_ctrl_modify_range(ov5675->hblank, h_blank, h_blank, 1,
 956                                          h_blank);
 957         }
 958
 959         mutex_unlock(&ov5675->mutex);
 960
 961         return 0;
 962 }
 963
 964 static int ov5675_get_format(struct v4l2_subdev *sd,
 965                              struct v4l2_subdev_pad_config *cfg,
 966                              struct v4l2_subdev_format *fmt)
 967 {
 968         struct ov5675 *ov5675 = to_ov5675(sd);
 969
 970         mutex_lock(&ov5675->mutex);
 971         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)
 972                 fmt->format = *v4l2_subdev_get_try_format(&ov5675->sd, cfg,
 973                                                           fmt->pad);
 974         else
 975                 ov5675_update_pad_format(ov5675->cur_mode, &fmt->format);
 976
 977         mutex_unlock(&ov5675->mutex);
 978
 979         return 0;
 980 }
 981
 982 static int ov5675_enum_mbus_code(struct v4l2_subdev *sd,
 983                                  struct v4l2_subdev_pad_config *cfg,
 984                                  struct v4l2_subdev_mbus_code_enum *code)
 985 {
 986         if (code->index > 0)
 987                 return -EINVAL;
 988
 989         code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
 990
 991         return 0;
 992 }
 993
 994 static int ov5675_enum_frame_size(struct v4l2_subdev *sd,
 995                                   struct v4l2_subdev_pad_config *cfg,
 996                                   struct v4l2_subdev_frame_size_enum *fse)
 997 {
 998         if (fse->index >= ARRAY_SIZE(supported_modes))
 999                 return -EINVAL;
1000
1001         if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
1002                 return -EINVAL;
1003
1004         fse->min_width = supported_modes[fse->index].width;
1005         fse->max_width = fse->min_width;
1006         fse->min_height = supported_modes[fse->index].height;
1007         fse->max_height = fse->min_height;
1008
1009         return 0;
1010 }
1011
1012 static int ov5675_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
1013 {
1014         struct ov5675 *ov5675 = to_ov5675(sd);
1015
1016         mutex_lock(&ov5675->mutex);
1017         ov5675_update_pad_format(&supported_modes[0],
1018                                  v4l2_subdev_get_try_format(sd, fh->pad, 0));
1019         mutex_unlock(&ov5675->mutex);
1020
1021         return 0;
1022 }
1023
1024 static const struct v4l2_subdev_video_ops ov5675_video_ops = {
1025         .s_stream = ov5675_set_stream,
1026 };
1027
1028 static const struct v4l2_subdev_pad_ops ov5675_pad_ops = {
1029         .set_fmt = ov5675_set_format,
1030         .get_fmt = ov5675_get_format,
1031         .enum_mbus_code = ov5675_enum_mbus_code,
1032         .enum_frame_size = ov5675_enum_frame_size,
1033 };
1034
1035 static const struct v4l2_subdev_ops ov5675_subdev_ops = {
1036         .video = &ov5675_video_ops,
1037         .pad = &ov5675_pad_ops,
1038 };
1039
1040 static const struct media_entity_operations ov5675_subdev_entity_ops = {
1041         .link_validate = v4l2_subdev_link_validate,
1042 };
1043
1044 static const struct v4l2_subdev_internal_ops ov5675_internal_ops = {
1045         .open = ov5675_open,
1046 };
1047
1048 static int ov5675_identify_module(struct ov5675 *ov5675)
1049 {
1050         struct i2c_client *client = v4l2_get_subdevdata(&ov5675->sd);
1051         int ret;
1052         u32 val;
1053
1054         ret = ov5675_read_reg(ov5675, OV5675_REG_CHIP_ID,
1055                               OV5675_REG_VALUE_24BIT, &val);
1056         if (ret)
1057                 return ret;
1058
1059         if (val != OV5675_CHIP_ID) {
1060                 dev_err(&client->dev, "chip id mismatch: %x!=%x",
1061                         OV5675_CHIP_ID, val);
1062                 return -ENXIO;
1063         }
1064
1065         return 0;
1066 }
1067
1068 static int ov5675_check_hwcfg(struct device *dev)
1069 {
1070         struct fwnode_handle *ep;
1071         struct fwnode_handle *fwnode = dev_fwnode(dev);
1072         struct v4l2_fwnode_endpoint bus_cfg = {
1073                 .bus_type = V4L2_MBUS_CSI2_DPHY
1074         };
1075         u32 mclk;
1076         int ret;
1077         unsigned int i, j;
1078
1079         if (!fwnode)
1080                 return -ENXIO;
1081
1082         ret = fwnode_property_read_u32(fwnode, "clock-frequency", &mclk);
1083
1084         if (ret) {
1085                 dev_err(dev, "can't get clock frequency");
1086                 return ret;
1087         }
1088
1089         if (mclk != OV5675_MCLK) {
1090                 dev_err(dev, "external clock %d is not supported", mclk);
1091                 return -EINVAL;
1092         }
1093
1094         ep = fwnode_graph_get_next_endpoint(fwnode, NULL);
1095         if (!ep)
1096                 return -ENXIO;
1097
1098         ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);
1099         fwnode_handle_put(ep);
1100         if (ret)
1101                 return ret;
1102
1103         if (bus_cfg.bus.mipi_csi2.num_data_lanes != OV5675_DATA_LANES) {
1104                 dev_err(dev, "number of CSI2 data lanes %d is not supported",
1105                         bus_cfg.bus.mipi_csi2.num_data_lanes);
1106                 ret = -EINVAL;
1107                 goto check_hwcfg_error;
1108         }
1109
1110         if (!bus_cfg.nr_of_link_frequencies) {
1111                 dev_err(dev, "no link frequencies defined");
1112                 ret = -EINVAL;
1113                 goto check_hwcfg_error;
1114         }
1115
1116         for (i = 0; i < ARRAY_SIZE(link_freq_menu_items); i++) {
1117                 for (j = 0; j < bus_cfg.nr_of_link_frequencies; j++) {
1118                         if (link_freq_menu_items[i] ==
1119                                 bus_cfg.link_frequencies[j])
1120                                 break;
1121                 }
1122
1123                 if (j == bus_cfg.nr_of_link_frequencies) {
1124                         dev_err(dev, "no link frequency %lld supported",
1125                                 link_freq_menu_items[i]);
1126                         ret = -EINVAL;
1127                         goto check_hwcfg_error;
1128                 }
1129         }
1130
1131 check_hwcfg_error:
1132         v4l2_fwnode_endpoint_free(&bus_cfg);
1133
1134         return ret;
1135 }
1136
1137 static int ov5675_remove(struct i2c_client *client)
1138 {
1139         struct v4l2_subdev *sd = i2c_get_clientdata(client);
1140         struct ov5675 *ov5675 = to_ov5675(sd);
1141
1142         v4l2_async_unregister_subdev(sd);
1143         media_entity_cleanup(&sd->entity);
1144         v4l2_ctrl_handler_free(sd->ctrl_handler);
1145         pm_runtime_disable(&client->dev);
1146         mutex_destroy(&ov5675->mutex);
1147
1148         return 0;
1149 }
1150
1151 static int ov5675_probe(struct i2c_client *client)
1152 {
1153         struct ov5675 *ov5675;
1154         int ret;
1155
1156         ret = ov5675_check_hwcfg(&client->dev);
1157         if (ret) {
1158                 dev_err(&client->dev, "failed to check HW configuration: %d",
1159                         ret);
1160                 return ret;
1161         }
1162
1163         ov5675 = devm_kzalloc(&client->dev, sizeof(*ov5675), GFP_KERNEL);
1164         if (!ov5675)
1165                 return -ENOMEM;
1166
1167         v4l2_i2c_subdev_init(&ov5675->sd, client, &ov5675_subdev_ops);
1168         ret = ov5675_identify_module(ov5675);
1169         if (ret) {
1170                 dev_err(&client->dev, "failed to find sensor: %d", ret);
1171                 return ret;
1172         }
1173
1174         mutex_init(&ov5675->mutex);
1175         ov5675->cur_mode = &supported_modes[0];
1176         ret = ov5675_init_controls(ov5675);
1177         if (ret) {
1178                 dev_err(&client->dev, "failed to init controls: %d", ret);
1179                 goto probe_error_v4l2_ctrl_handler_free;
1180         }
1181
1182         ov5675->sd.internal_ops = &ov5675_internal_ops;
1183         ov5675->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1184         ov5675->sd.entity.ops = &ov5675_subdev_entity_ops;
1185         ov5675->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
1186         ov5675->pad.flags = MEDIA_PAD_FL_SOURCE;
1187         ret = media_entity_pads_init(&ov5675->sd.entity, 1, &ov5675->pad);
1188         if (ret) {
1189                 dev_err(&client->dev, "failed to init entity pads: %d", ret);
1190                 goto probe_error_v4l2_ctrl_handler_free;
1191         }
1192
1193         ret = v4l2_async_register_subdev_sensor_common(&ov5675->sd);
1194         if (ret < 0) {
1195                 dev_err(&client->dev, "failed to register V4L2 subdev: %d",
1196                         ret);
1197                 goto probe_error_media_entity_cleanup;
1198         }
1199
1200         /*
1201          * Device is already turned on by i2c-core with ACPI domain PM.
1202          * Enable runtime PM and turn off the device.
1203          */
1204         pm_runtime_set_active(&client->dev);
1205         pm_runtime_enable(&client->dev);
1206         pm_runtime_idle(&client->dev);
1207
1208         return 0;
1209
1210 probe_error_media_entity_cleanup:
1211         media_entity_cleanup(&ov5675->sd.entity);
1212
1213 probe_error_v4l2_ctrl_handler_free:
1214         v4l2_ctrl_handler_free(ov5675->sd.ctrl_handler);
1215         mutex_destroy(&ov5675->mutex);
1216
1217         return ret;
1218 }
1219
1220 static const struct dev_pm_ops ov5675_pm_ops = {
1221         SET_SYSTEM_SLEEP_PM_OPS(ov5675_suspend, ov5675_resume)
1222 };
1223
1224 #ifdef CONFIG_ACPI
1225 static const struct acpi_device_id ov5675_acpi_ids[] = {
1226         {"OVTI5675"},
1227         {}
1228 };
1229
1230 MODULE_DEVICE_TABLE(acpi, ov5675_acpi_ids);
1231 #endif
1232
1233 static struct i2c_driver ov5675_i2c_driver = {
1234         .driver = {
1235                 .name = "ov5675",
1236                 .pm = &ov5675_pm_ops,
1237                 .acpi_match_table = ACPI_PTR(ov5675_acpi_ids),
1238         },
1239         .probe_new = ov5675_probe,
1240         .remove = ov5675_remove,
1241 };
1242
1243 module_i2c_driver(ov5675_i2c_driver);
1244
1245 MODULE_AUTHOR("Shawn Tu <shawnx.tu@intel.com>");
1246 MODULE_DESCRIPTION("OmniVision OV5675 sensor driver");
1247 MODULE_LICENSE("GPL v2");