drivers/media/i2c/ov13858.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 // Copyright (c) 2017 Intel Corporation.
   3
   4 #include <linux/acpi.h>
   5 #include <linux/i2c.h>
   6 #include <linux/module.h>
   7 #include <linux/pm_runtime.h>
   8 #include <media/v4l2-ctrls.h>
   9 #include <media/v4l2-device.h>
  10 #include <media/v4l2-event.h>
  11 #include <media/v4l2-fwnode.h>
  12
  13 #define OV13858_REG_VALUE_08BIT         1
  14 #define OV13858_REG_VALUE_16BIT         2
  15 #define OV13858_REG_VALUE_24BIT         3
  16
  17 #define OV13858_REG_MODE_SELECT         0x0100
  18 #define OV13858_MODE_STANDBY            0x00
  19 #define OV13858_MODE_STREAMING          0x01
  20
  21 #define OV13858_REG_SOFTWARE_RST        0x0103
  22 #define OV13858_SOFTWARE_RST            0x01
  23
  24 /* PLL1 generates PCLK and MIPI_PHY_CLK */
  25 #define OV13858_REG_PLL1_CTRL_0         0x0300
  26 #define OV13858_REG_PLL1_CTRL_1         0x0301
  27 #define OV13858_REG_PLL1_CTRL_2         0x0302
  28 #define OV13858_REG_PLL1_CTRL_3         0x0303
  29 #define OV13858_REG_PLL1_CTRL_4         0x0304
  30 #define OV13858_REG_PLL1_CTRL_5         0x0305
  31
  32 /* PLL2 generates DAC_CLK, SCLK and SRAM_CLK */
  33 #define OV13858_REG_PLL2_CTRL_B         0x030b
  34 #define OV13858_REG_PLL2_CTRL_C         0x030c
  35 #define OV13858_REG_PLL2_CTRL_D         0x030d
  36 #define OV13858_REG_PLL2_CTRL_E         0x030e
  37 #define OV13858_REG_PLL2_CTRL_F         0x030f
  38 #define OV13858_REG_PLL2_CTRL_12        0x0312
  39 #define OV13858_REG_MIPI_SC_CTRL0       0x3016
  40 #define OV13858_REG_MIPI_SC_CTRL1       0x3022
  41
  42 /* Chip ID */
  43 #define OV13858_REG_CHIP_ID             0x300a
  44 #define OV13858_CHIP_ID                 0x00d855
  45
  46 /* V_TIMING internal */
  47 #define OV13858_REG_VTS                 0x380e
  48 #define OV13858_VTS_30FPS               0x0c8e /* 30 fps */
  49 #define OV13858_VTS_60FPS               0x0648 /* 60 fps */
  50 #define OV13858_VTS_MAX                 0x7fff
  51
  52 /* HBLANK control - read only */
  53 #define OV13858_PPL_270MHZ              2244
  54 #define OV13858_PPL_540MHZ              4488
  55
  56 /* Exposure control */
  57 #define OV13858_REG_EXPOSURE            0x3500
  58 #define OV13858_EXPOSURE_MIN            4
  59 #define OV13858_EXPOSURE_STEP           1
  60 #define OV13858_EXPOSURE_DEFAULT        0x640
  61
  62 /* Analog gain control */
  63 #define OV13858_REG_ANALOG_GAIN         0x3508
  64 #define OV13858_ANA_GAIN_MIN            0
  65 #define OV13858_ANA_GAIN_MAX            0x1fff
  66 #define OV13858_ANA_GAIN_STEP           1
  67 #define OV13858_ANA_GAIN_DEFAULT        0x80
  68
  69 /* Digital gain control */
  70 #define OV13858_REG_B_MWB_GAIN          0x5100
  71 #define OV13858_REG_G_MWB_GAIN          0x5102
  72 #define OV13858_REG_R_MWB_GAIN          0x5104
  73 #define OV13858_DGTL_GAIN_MIN           0
  74 #define OV13858_DGTL_GAIN_MAX           16384   /* Max = 16 X */
  75 #define OV13858_DGTL_GAIN_DEFAULT       1024    /* Default gain = 1 X */
  76 #define OV13858_DGTL_GAIN_STEP          1       /* Each step = 1/1024 */
  77
  78 /* Test Pattern Control */
  79 #define OV13858_REG_TEST_PATTERN        0x4503
  80 #define OV13858_TEST_PATTERN_ENABLE     BIT(7)
  81 #define OV13858_TEST_PATTERN_MASK       0xfc
  82
  83 /* Number of frames to skip */
  84 #define OV13858_NUM_OF_SKIP_FRAMES      2
  85
  86 struct ov13858_reg {
  87         u16 address;
  88         u8 val;
  89 };
  90
  91 struct ov13858_reg_list {
  92         u32 num_of_regs;
  93         const struct ov13858_reg *regs;
  94 };
  95
  96 /* Link frequency config */
  97 struct ov13858_link_freq_config {
  98         u32 pixels_per_line;
  99
 100         /* PLL registers for this link frequency */
 101         struct ov13858_reg_list reg_list;
 102 };
 103
 104 /* Mode : resolution and related config&values */
 105 struct ov13858_mode {
 106         /* Frame width */
 107         u32 width;
 108         /* Frame height */
 109         u32 height;
 110
 111         /* V-timing */
 112         u32 vts_def;
 113         u32 vts_min;
 114
 115         /* Index of Link frequency config to be used */
 116         u32 link_freq_index;
 117         /* Default register values */
 118         struct ov13858_reg_list reg_list;
 119 };
 120
 121 /* 4224x3136 needs 1080Mbps/lane, 4 lanes */
 122 static const struct ov13858_reg mipi_data_rate_1080mbps[] = {
 123         /* PLL1 registers */
 124         {OV13858_REG_PLL1_CTRL_0, 0x07},
 125         {OV13858_REG_PLL1_CTRL_1, 0x01},
 126         {OV13858_REG_PLL1_CTRL_2, 0xc2},
 127         {OV13858_REG_PLL1_CTRL_3, 0x00},
 128         {OV13858_REG_PLL1_CTRL_4, 0x00},
 129         {OV13858_REG_PLL1_CTRL_5, 0x01},
 130
 131         /* PLL2 registers */
 132         {OV13858_REG_PLL2_CTRL_B, 0x05},
 133         {OV13858_REG_PLL2_CTRL_C, 0x01},
 134         {OV13858_REG_PLL2_CTRL_D, 0x0e},
 135         {OV13858_REG_PLL2_CTRL_E, 0x05},
 136         {OV13858_REG_PLL2_CTRL_F, 0x01},
 137         {OV13858_REG_PLL2_CTRL_12, 0x01},
 138         {OV13858_REG_MIPI_SC_CTRL0, 0x72},
 139         {OV13858_REG_MIPI_SC_CTRL1, 0x01},
 140 };
 141
 142 /*
 143  * 2112x1568, 2112x1188, 1056x784 need 540Mbps/lane,
 144  * 4 lanes
 145  */
 146 static const struct ov13858_reg mipi_data_rate_540mbps[] = {
 147         /* PLL1 registers */
 148         {OV13858_REG_PLL1_CTRL_0, 0x07},
 149         {OV13858_REG_PLL1_CTRL_1, 0x01},
 150         {OV13858_REG_PLL1_CTRL_2, 0xc2},
 151         {OV13858_REG_PLL1_CTRL_3, 0x01},
 152         {OV13858_REG_PLL1_CTRL_4, 0x00},
 153         {OV13858_REG_PLL1_CTRL_5, 0x01},
 154
 155         /* PLL2 registers */
 156         {OV13858_REG_PLL2_CTRL_B, 0x05},
 157         {OV13858_REG_PLL2_CTRL_C, 0x01},
 158         {OV13858_REG_PLL2_CTRL_D, 0x0e},
 159         {OV13858_REG_PLL2_CTRL_E, 0x05},
 160         {OV13858_REG_PLL2_CTRL_F, 0x01},
 161         {OV13858_REG_PLL2_CTRL_12, 0x01},
 162         {OV13858_REG_MIPI_SC_CTRL0, 0x72},
 163         {OV13858_REG_MIPI_SC_CTRL1, 0x01},
 164 };
 165
 166 static const struct ov13858_reg mode_4224x3136_regs[] = {
 167         {0x3013, 0x32},
 168         {0x301b, 0xf0},
 169         {0x301f, 0xd0},
 170         {0x3106, 0x15},
 171         {0x3107, 0x23},
 172         {0x350a, 0x00},
 173         {0x350e, 0x00},
 174         {0x3510, 0x00},
 175         {0x3511, 0x02},
 176         {0x3512, 0x00},
 177         {0x3600, 0x2b},
 178         {0x3601, 0x52},
 179         {0x3602, 0x60},
 180         {0x3612, 0x05},
 181         {0x3613, 0xa4},
 182         {0x3620, 0x80},
 183         {0x3621, 0x10},
 184         {0x3622, 0x30},
 185         {0x3624, 0x1c},
 186         {0x3640, 0x10},
 187         {0x3641, 0x70},
 188         {0x3660, 0x04},
 189         {0x3661, 0x80},
 190         {0x3662, 0x12},
 191         {0x3664, 0x73},
 192         {0x3665, 0xa7},
 193         {0x366e, 0xff},
 194         {0x366f, 0xf4},
 195         {0x3674, 0x00},
 196         {0x3679, 0x0c},
 197         {0x367f, 0x01},
 198         {0x3680, 0x0c},
 199         {0x3681, 0x50},
 200         {0x3682, 0x50},
 201         {0x3683, 0xa9},
 202         {0x3684, 0xa9},
 203         {0x3709, 0x5f},
 204         {0x3714, 0x24},
 205         {0x371a, 0x3e},
 206         {0x3737, 0x04},
 207         {0x3738, 0xcc},
 208         {0x3739, 0x12},
 209         {0x373d, 0x26},
 210         {0x3764, 0x20},
 211         {0x3765, 0x20},
 212         {0x37a1, 0x36},
 213         {0x37a8, 0x3b},
 214         {0x37ab, 0x31},
 215         {0x37c2, 0x04},
 216         {0x37c3, 0xf1},
 217         {0x37c5, 0x00},
 218         {0x37d8, 0x03},
 219         {0x37d9, 0x0c},
 220         {0x37da, 0xc2},
 221         {0x37dc, 0x02},
 222         {0x37e0, 0x00},
 223         {0x37e1, 0x0a},
 224         {0x37e2, 0x14},
 225         {0x37e3, 0x04},
 226         {0x37e4, 0x2a},
 227         {0x37e5, 0x03},
 228         {0x37e6, 0x04},
 229         {0x3800, 0x00},
 230         {0x3801, 0x00},
 231         {0x3802, 0x00},
 232         {0x3803, 0x08},
 233         {0x3804, 0x10},
 234         {0x3805, 0x9f},
 235         {0x3806, 0x0c},
 236         {0x3807, 0x57},
 237         {0x3808, 0x10},
 238         {0x3809, 0x80},
 239         {0x380a, 0x0c},
 240         {0x380b, 0x40},
 241         {0x380c, 0x04},
 242         {0x380d, 0x62},
 243         {0x380e, 0x0c},
 244         {0x380f, 0x8e},
 245         {0x3811, 0x04},
 246         {0x3813, 0x05},
 247         {0x3814, 0x01},
 248         {0x3815, 0x01},
 249         {0x3816, 0x01},
 250         {0x3817, 0x01},
 251         {0x3820, 0xa8},
 252         {0x3821, 0x00},
 253         {0x3822, 0xc2},
 254         {0x3823, 0x18},
 255         {0x3826, 0x11},
 256         {0x3827, 0x1c},
 257         {0x3829, 0x03},
 258         {0x3832, 0x00},
 259         {0x3c80, 0x00},
 260         {0x3c87, 0x01},
 261         {0x3c8c, 0x19},
 262         {0x3c8d, 0x1c},
 263         {0x3c90, 0x00},
 264         {0x3c91, 0x00},
 265         {0x3c92, 0x00},
 266         {0x3c93, 0x00},
 267         {0x3c94, 0x40},
 268         {0x3c95, 0x54},
 269         {0x3c96, 0x34},
 270         {0x3c97, 0x04},
 271         {0x3c98, 0x00},
 272         {0x3d8c, 0x73},
 273         {0x3d8d, 0xc0},
 274         {0x3f00, 0x0b},
 275         {0x3f03, 0x00},
 276         {0x4001, 0xe0},
 277         {0x4008, 0x00},
 278         {0x4009, 0x0f},
 279         {0x4011, 0xf0},
 280         {0x4017, 0x08},
 281         {0x4050, 0x04},
 282         {0x4051, 0x0b},
 283         {0x4052, 0x00},
 284         {0x4053, 0x80},
 285         {0x4054, 0x00},
 286         {0x4055, 0x80},
 287         {0x4056, 0x00},
 288         {0x4057, 0x80},
 289         {0x4058, 0x00},
 290         {0x4059, 0x80},
 291         {0x405e, 0x20},
 292         {0x4500, 0x07},
 293         {0x4503, 0x00},
 294         {0x450a, 0x04},
 295         {0x4809, 0x04},
 296         {0x480c, 0x12},
 297         {0x481f, 0x30},
 298         {0x4833, 0x10},
 299         {0x4837, 0x0e},
 300         {0x4902, 0x01},
 301         {0x4d00, 0x03},
 302         {0x4d01, 0xc9},
 303         {0x4d02, 0xbc},
 304         {0x4d03, 0xd7},
 305         {0x4d04, 0xf0},
 306         {0x4d05, 0xa2},
 307         {0x5000, 0xfd},
 308         {0x5001, 0x01},
 309         {0x5040, 0x39},
 310         {0x5041, 0x10},
 311         {0x5042, 0x10},
 312         {0x5043, 0x84},
 313         {0x5044, 0x62},
 314         {0x5180, 0x00},
 315         {0x5181, 0x10},
 316         {0x5182, 0x02},
 317         {0x5183, 0x0f},
 318         {0x5200, 0x1b},
 319         {0x520b, 0x07},
 320         {0x520c, 0x0f},
 321         {0x5300, 0x04},
 322         {0x5301, 0x0c},
 323         {0x5302, 0x0c},
 324         {0x5303, 0x0f},
 325         {0x5304, 0x00},
 326         {0x5305, 0x70},
 327         {0x5306, 0x00},
 328         {0x5307, 0x80},
 329         {0x5308, 0x00},
 330         {0x5309, 0xa5},
 331         {0x530a, 0x00},
 332         {0x530b, 0xd3},
 333         {0x530c, 0x00},
 334         {0x530d, 0xf0},
 335         {0x530e, 0x01},
 336         {0x530f, 0x10},
 337         {0x5310, 0x01},
 338         {0x5311, 0x20},
 339         {0x5312, 0x01},
 340         {0x5313, 0x20},
 341         {0x5314, 0x01},
 342         {0x5315, 0x20},
 343         {0x5316, 0x08},
 344         {0x5317, 0x08},
 345         {0x5318, 0x10},
 346         {0x5319, 0x88},
 347         {0x531a, 0x88},
 348         {0x531b, 0xa9},
 349         {0x531c, 0xaa},
 350         {0x531d, 0x0a},
 351         {0x5405, 0x02},
 352         {0x5406, 0x67},
 353         {0x5407, 0x01},
 354         {0x5408, 0x4a},
 355 };
 356
 357 static const struct ov13858_reg mode_2112x1568_regs[] = {
 358         {0x3013, 0x32},
 359         {0x301b, 0xf0},
 360         {0x301f, 0xd0},
 361         {0x3106, 0x15},
 362         {0x3107, 0x23},
 363         {0x350a, 0x00},
 364         {0x350e, 0x00},
 365         {0x3510, 0x00},
 366         {0x3511, 0x02},
 367         {0x3512, 0x00},
 368         {0x3600, 0x2b},
 369         {0x3601, 0x52},
 370         {0x3602, 0x60},
 371         {0x3612, 0x05},
 372         {0x3613, 0xa4},
 373         {0x3620, 0x80},
 374         {0x3621, 0x10},
 375         {0x3622, 0x30},
 376         {0x3624, 0x1c},
 377         {0x3640, 0x10},
 378         {0x3641, 0x70},
 379         {0x3660, 0x04},
 380         {0x3661, 0x80},
 381         {0x3662, 0x10},
 382         {0x3664, 0x73},
 383         {0x3665, 0xa7},
 384         {0x366e, 0xff},
 385         {0x366f, 0xf4},
 386         {0x3674, 0x00},
 387         {0x3679, 0x0c},
 388         {0x367f, 0x01},
 389         {0x3680, 0x0c},
 390         {0x3681, 0x50},
 391         {0x3682, 0x50},
 392         {0x3683, 0xa9},
 393         {0x3684, 0xa9},
 394         {0x3709, 0x5f},
 395         {0x3714, 0x28},
 396         {0x371a, 0x3e},
 397         {0x3737, 0x08},
 398         {0x3738, 0xcc},
 399         {0x3739, 0x20},
 400         {0x373d, 0x26},
 401         {0x3764, 0x20},
 402         {0x3765, 0x20},
 403         {0x37a1, 0x36},
 404         {0x37a8, 0x3b},
 405         {0x37ab, 0x31},
 406         {0x37c2, 0x14},
 407         {0x37c3, 0xf1},
 408         {0x37c5, 0x00},
 409         {0x37d8, 0x03},
 410         {0x37d9, 0x0c},
 411         {0x37da, 0xc2},
 412         {0x37dc, 0x02},
 413         {0x37e0, 0x00},
 414         {0x37e1, 0x0a},
 415         {0x37e2, 0x14},
 416         {0x37e3, 0x08},
 417         {0x37e4, 0x38},
 418         {0x37e5, 0x03},
 419         {0x37e6, 0x08},
 420         {0x3800, 0x00},
 421         {0x3801, 0x00},
 422         {0x3802, 0x00},
 423         {0x3803, 0x00},
 424         {0x3804, 0x10},
 425         {0x3805, 0x9f},
 426         {0x3806, 0x0c},
 427         {0x3807, 0x5f},
 428         {0x3808, 0x08},
 429         {0x3809, 0x40},
 430         {0x380a, 0x06},
 431         {0x380b, 0x20},
 432         {0x380c, 0x04},
 433         {0x380d, 0x62},
 434         {0x380e, 0x0c},
 435         {0x380f, 0x8e},
 436         {0x3811, 0x04},
 437         {0x3813, 0x05},
 438         {0x3814, 0x03},
 439         {0x3815, 0x01},
 440         {0x3816, 0x03},
 441         {0x3817, 0x01},
 442         {0x3820, 0xab},
 443         {0x3821, 0x00},
 444         {0x3822, 0xc2},
 445         {0x3823, 0x18},
 446         {0x3826, 0x04},
 447         {0x3827, 0x90},
 448         {0x3829, 0x07},
 449         {0x3832, 0x00},
 450         {0x3c80, 0x00},
 451         {0x3c87, 0x01},
 452         {0x3c8c, 0x19},
 453         {0x3c8d, 0x1c},
 454         {0x3c90, 0x00},
 455         {0x3c91, 0x00},
 456         {0x3c92, 0x00},
 457         {0x3c93, 0x00},
 458         {0x3c94, 0x40},
 459         {0x3c95, 0x54},
 460         {0x3c96, 0x34},
 461         {0x3c97, 0x04},
 462         {0x3c98, 0x00},
 463         {0x3d8c, 0x73},
 464         {0x3d8d, 0xc0},
 465         {0x3f00, 0x0b},
 466         {0x3f03, 0x00},
 467         {0x4001, 0xe0},
 468         {0x4008, 0x00},
 469         {0x4009, 0x0d},
 470         {0x4011, 0xf0},
 471         {0x4017, 0x08},
 472         {0x4050, 0x04},
 473         {0x4051, 0x0b},
 474         {0x4052, 0x00},
 475         {0x4053, 0x80},
 476         {0x4054, 0x00},
 477         {0x4055, 0x80},
 478         {0x4056, 0x00},
 479         {0x4057, 0x80},
 480         {0x4058, 0x00},
 481         {0x4059, 0x80},
 482         {0x405e, 0x20},
 483         {0x4500, 0x07},
 484         {0x4503, 0x00},
 485         {0x450a, 0x04},
 486         {0x4809, 0x04},
 487         {0x480c, 0x12},
 488         {0x481f, 0x30},
 489         {0x4833, 0x10},
 490         {0x4837, 0x1c},
 491         {0x4902, 0x01},
 492         {0x4d00, 0x03},
 493         {0x4d01, 0xc9},
 494         {0x4d02, 0xbc},
 495         {0x4d03, 0xd7},
 496         {0x4d04, 0xf0},
 497         {0x4d05, 0xa2},
 498         {0x5000, 0xfd},
 499         {0x5001, 0x01},
 500         {0x5040, 0x39},
 501         {0x5041, 0x10},
 502         {0x5042, 0x10},
 503         {0x5043, 0x84},
 504         {0x5044, 0x62},
 505         {0x5180, 0x00},
 506         {0x5181, 0x10},
 507         {0x5182, 0x02},
 508         {0x5183, 0x0f},
 509         {0x5200, 0x1b},
 510         {0x520b, 0x07},
 511         {0x520c, 0x0f},
 512         {0x5300, 0x04},
 513         {0x5301, 0x0c},
 514         {0x5302, 0x0c},
 515         {0x5303, 0x0f},
 516         {0x5304, 0x00},
 517         {0x5305, 0x70},
 518         {0x5306, 0x00},
 519         {0x5307, 0x80},
 520         {0x5308, 0x00},
 521         {0x5309, 0xa5},
 522         {0x530a, 0x00},
 523         {0x530b, 0xd3},
 524         {0x530c, 0x00},
 525         {0x530d, 0xf0},
 526         {0x530e, 0x01},
 527         {0x530f, 0x10},
 528         {0x5310, 0x01},
 529         {0x5311, 0x20},
 530         {0x5312, 0x01},
 531         {0x5313, 0x20},
 532         {0x5314, 0x01},
 533         {0x5315, 0x20},
 534         {0x5316, 0x08},
 535         {0x5317, 0x08},
 536         {0x5318, 0x10},
 537         {0x5319, 0x88},
 538         {0x531a, 0x88},
 539         {0x531b, 0xa9},
 540         {0x531c, 0xaa},
 541         {0x531d, 0x0a},
 542         {0x5405, 0x02},
 543         {0x5406, 0x67},
 544         {0x5407, 0x01},
 545         {0x5408, 0x4a},
 546 };
 547
 548 static const struct ov13858_reg mode_2112x1188_regs[] = {
 549         {0x3013, 0x32},
 550         {0x301b, 0xf0},
 551         {0x301f, 0xd0},
 552         {0x3106, 0x15},
 553         {0x3107, 0x23},
 554         {0x350a, 0x00},
 555         {0x350e, 0x00},
 556         {0x3510, 0x00},
 557         {0x3511, 0x02},
 558         {0x3512, 0x00},
 559         {0x3600, 0x2b},
 560         {0x3601, 0x52},
 561         {0x3602, 0x60},
 562         {0x3612, 0x05},
 563         {0x3613, 0xa4},
 564         {0x3620, 0x80},
 565         {0x3621, 0x10},
 566         {0x3622, 0x30},
 567         {0x3624, 0x1c},
 568         {0x3640, 0x10},
 569         {0x3641, 0x70},
 570         {0x3660, 0x04},
 571         {0x3661, 0x80},
 572         {0x3662, 0x10},
 573         {0x3664, 0x73},
 574         {0x3665, 0xa7},
 575         {0x366e, 0xff},
 576         {0x366f, 0xf4},
 577         {0x3674, 0x00},
 578         {0x3679, 0x0c},
 579         {0x367f, 0x01},
 580         {0x3680, 0x0c},
 581         {0x3681, 0x50},
 582         {0x3682, 0x50},
 583         {0x3683, 0xa9},
 584         {0x3684, 0xa9},
 585         {0x3709, 0x5f},
 586         {0x3714, 0x28},
 587         {0x371a, 0x3e},
 588         {0x3737, 0x08},
 589         {0x3738, 0xcc},
 590         {0x3739, 0x20},
 591         {0x373d, 0x26},
 592         {0x3764, 0x20},
 593         {0x3765, 0x20},
 594         {0x37a1, 0x36},
 595         {0x37a8, 0x3b},
 596         {0x37ab, 0x31},
 597         {0x37c2, 0x14},
 598         {0x37c3, 0xf1},
 599         {0x37c5, 0x00},
 600         {0x37d8, 0x03},
 601         {0x37d9, 0x0c},
 602         {0x37da, 0xc2},
 603         {0x37dc, 0x02},
 604         {0x37e0, 0x00},
 605         {0x37e1, 0x0a},
 606         {0x37e2, 0x14},
 607         {0x37e3, 0x08},
 608         {0x37e4, 0x38},
 609         {0x37e5, 0x03},
 610         {0x37e6, 0x08},
 611         {0x3800, 0x00},
 612         {0x3801, 0x00},
 613         {0x3802, 0x01},
 614         {0x3803, 0x84},
 615         {0x3804, 0x10},
 616         {0x3805, 0x9f},
 617         {0x3806, 0x0a},
 618         {0x3807, 0xd3},
 619         {0x3808, 0x08},
 620         {0x3809, 0x40},
 621         {0x380a, 0x04},
 622         {0x380b, 0xa4},
 623         {0x380c, 0x04},
 624         {0x380d, 0x62},
 625         {0x380e, 0x0c},
 626         {0x380f, 0x8e},
 627         {0x3811, 0x08},
 628         {0x3813, 0x03},
 629         {0x3814, 0x03},
 630         {0x3815, 0x01},
 631         {0x3816, 0x03},
 632         {0x3817, 0x01},
 633         {0x3820, 0xab},
 634         {0x3821, 0x00},
 635         {0x3822, 0xc2},
 636         {0x3823, 0x18},
 637         {0x3826, 0x04},
 638         {0x3827, 0x90},
 639         {0x3829, 0x07},
 640         {0x3832, 0x00},
 641         {0x3c80, 0x00},
 642         {0x3c87, 0x01},
 643         {0x3c8c, 0x19},
 644         {0x3c8d, 0x1c},
 645         {0x3c90, 0x00},
 646         {0x3c91, 0x00},
 647         {0x3c92, 0x00},
 648         {0x3c93, 0x00},
 649         {0x3c94, 0x40},
 650         {0x3c95, 0x54},
 651         {0x3c96, 0x34},
 652         {0x3c97, 0x04},
 653         {0x3c98, 0x00},
 654         {0x3d8c, 0x73},
 655         {0x3d8d, 0xc0},
 656         {0x3f00, 0x0b},
 657         {0x3f03, 0x00},
 658         {0x4001, 0xe0},
 659         {0x4008, 0x00},
 660         {0x4009, 0x0d},
 661         {0x4011, 0xf0},
 662         {0x4017, 0x08},
 663         {0x4050, 0x04},
 664         {0x4051, 0x0b},
 665         {0x4052, 0x00},
 666         {0x4053, 0x80},
 667         {0x4054, 0x00},
 668         {0x4055, 0x80},
 669         {0x4056, 0x00},
 670         {0x4057, 0x80},
 671         {0x4058, 0x00},
 672         {0x4059, 0x80},
 673         {0x405e, 0x20},
 674         {0x4500, 0x07},
 675         {0x4503, 0x00},
 676         {0x450a, 0x04},
 677         {0x4809, 0x04},
 678         {0x480c, 0x12},
 679         {0x481f, 0x30},
 680         {0x4833, 0x10},
 681         {0x4837, 0x1c},
 682         {0x4902, 0x01},
 683         {0x4d00, 0x03},
 684         {0x4d01, 0xc9},
 685         {0x4d02, 0xbc},
 686         {0x4d03, 0xd7},
 687         {0x4d04, 0xf0},
 688         {0x4d05, 0xa2},
 689         {0x5000, 0xfd},
 690         {0x5001, 0x01},
 691         {0x5040, 0x39},
 692         {0x5041, 0x10},
 693         {0x5042, 0x10},
 694         {0x5043, 0x84},
 695         {0x5044, 0x62},
 696         {0x5180, 0x00},
 697         {0x5181, 0x10},
 698         {0x5182, 0x02},
 699         {0x5183, 0x0f},
 700         {0x5200, 0x1b},
 701         {0x520b, 0x07},
 702         {0x520c, 0x0f},
 703         {0x5300, 0x04},
 704         {0x5301, 0x0c},
 705         {0x5302, 0x0c},
 706         {0x5303, 0x0f},
 707         {0x5304, 0x00},
 708         {0x5305, 0x70},
 709         {0x5306, 0x00},
 710         {0x5307, 0x80},
 711         {0x5308, 0x00},
 712         {0x5309, 0xa5},
 713         {0x530a, 0x00},
 714         {0x530b, 0xd3},
 715         {0x530c, 0x00},
 716         {0x530d, 0xf0},
 717         {0x530e, 0x01},
 718         {0x530f, 0x10},
 719         {0x5310, 0x01},
 720         {0x5311, 0x20},
 721         {0x5312, 0x01},
 722         {0x5313, 0x20},
 723         {0x5314, 0x01},
 724         {0x5315, 0x20},
 725         {0x5316, 0x08},
 726         {0x5317, 0x08},
 727         {0x5318, 0x10},
 728         {0x5319, 0x88},
 729         {0x531a, 0x88},
 730         {0x531b, 0xa9},
 731         {0x531c, 0xaa},
 732         {0x531d, 0x0a},
 733         {0x5405, 0x02},
 734         {0x5406, 0x67},
 735         {0x5407, 0x01},
 736         {0x5408, 0x4a},
 737 };
 738
 739 static const struct ov13858_reg mode_1056x784_regs[] = {
 740         {0x3013, 0x32},
 741         {0x301b, 0xf0},
 742         {0x301f, 0xd0},
 743         {0x3106, 0x15},
 744         {0x3107, 0x23},
 745         {0x350a, 0x00},
 746         {0x350e, 0x00},
 747         {0x3510, 0x00},
 748         {0x3511, 0x02},
 749         {0x3512, 0x00},
 750         {0x3600, 0x2b},
 751         {0x3601, 0x52},
 752         {0x3602, 0x60},
 753         {0x3612, 0x05},
 754         {0x3613, 0xa4},
 755         {0x3620, 0x80},
 756         {0x3621, 0x10},
 757         {0x3622, 0x30},
 758         {0x3624, 0x1c},
 759         {0x3640, 0x10},
 760         {0x3641, 0x70},
 761         {0x3660, 0x04},
 762         {0x3661, 0x80},
 763         {0x3662, 0x08},
 764         {0x3664, 0x73},
 765         {0x3665, 0xa7},
 766         {0x366e, 0xff},
 767         {0x366f, 0xf4},
 768         {0x3674, 0x00},
 769         {0x3679, 0x0c},
 770         {0x367f, 0x01},
 771         {0x3680, 0x0c},
 772         {0x3681, 0x50},
 773         {0x3682, 0x50},
 774         {0x3683, 0xa9},
 775         {0x3684, 0xa9},
 776         {0x3709, 0x5f},
 777         {0x3714, 0x30},
 778         {0x371a, 0x3e},
 779         {0x3737, 0x08},
 780         {0x3738, 0xcc},
 781         {0x3739, 0x20},
 782         {0x373d, 0x26},
 783         {0x3764, 0x20},
 784         {0x3765, 0x20},
 785         {0x37a1, 0x36},
 786         {0x37a8, 0x3b},
 787         {0x37ab, 0x31},
 788         {0x37c2, 0x2c},
 789         {0x37c3, 0xf1},
 790         {0x37c5, 0x00},
 791         {0x37d8, 0x03},
 792         {0x37d9, 0x06},
 793         {0x37da, 0xc2},
 794         {0x37dc, 0x02},
 795         {0x37e0, 0x00},
 796         {0x37e1, 0x0a},
 797         {0x37e2, 0x14},
 798         {0x37e3, 0x08},
 799         {0x37e4, 0x36},
 800         {0x37e5, 0x03},
 801         {0x37e6, 0x08},
 802         {0x3800, 0x00},
 803         {0x3801, 0x00},
 804         {0x3802, 0x00},
 805         {0x3803, 0x00},
 806         {0x3804, 0x10},
 807         {0x3805, 0x9f},
 808         {0x3806, 0x0c},
 809         {0x3807, 0x5f},
 810         {0x3808, 0x04},
 811         {0x3809, 0x20},
 812         {0x380a, 0x03},
 813         {0x380b, 0x10},
 814         {0x380c, 0x04},
 815         {0x380d, 0x62},
 816         {0x380e, 0x0c},
 817         {0x380f, 0x8e},
 818         {0x3811, 0x04},
 819         {0x3813, 0x05},
 820         {0x3814, 0x07},
 821         {0x3815, 0x01},
 822         {0x3816, 0x07},
 823         {0x3817, 0x01},
 824         {0x3820, 0xac},
 825         {0x3821, 0x00},
 826         {0x3822, 0xc2},
 827         {0x3823, 0x18},
 828         {0x3826, 0x04},
 829         {0x3827, 0x48},
 830         {0x3829, 0x03},
 831         {0x3832, 0x00},
 832         {0x3c80, 0x00},
 833         {0x3c87, 0x01},
 834         {0x3c8c, 0x19},
 835         {0x3c8d, 0x1c},
 836         {0x3c90, 0x00},
 837         {0x3c91, 0x00},
 838         {0x3c92, 0x00},
 839         {0x3c93, 0x00},
 840         {0x3c94, 0x40},
 841         {0x3c95, 0x54},
 842         {0x3c96, 0x34},
 843         {0x3c97, 0x04},
 844         {0x3c98, 0x00},
 845         {0x3d8c, 0x73},
 846         {0x3d8d, 0xc0},
 847         {0x3f00, 0x0b},
 848         {0x3f03, 0x00},
 849         {0x4001, 0xe0},
 850         {0x4008, 0x00},
 851         {0x4009, 0x05},
 852         {0x4011, 0xf0},
 853         {0x4017, 0x08},
 854         {0x4050, 0x02},
 855         {0x4051, 0x05},
 856         {0x4052, 0x00},
 857         {0x4053, 0x80},
 858         {0x4054, 0x00},
 859         {0x4055, 0x80},
 860         {0x4056, 0x00},
 861         {0x4057, 0x80},
 862         {0x4058, 0x00},
 863         {0x4059, 0x80},
 864         {0x405e, 0x20},
 865         {0x4500, 0x07},
 866         {0x4503, 0x00},
 867         {0x450a, 0x04},
 868         {0x4809, 0x04},
 869         {0x480c, 0x12},
 870         {0x481f, 0x30},
 871         {0x4833, 0x10},
 872         {0x4837, 0x1e},
 873         {0x4902, 0x02},
 874         {0x4d00, 0x03},
 875         {0x4d01, 0xc9},
 876         {0x4d02, 0xbc},
 877         {0x4d03, 0xd7},
 878         {0x4d04, 0xf0},
 879         {0x4d05, 0xa2},
 880         {0x5000, 0xfd},
 881         {0x5001, 0x01},
 882         {0x5040, 0x39},
 883         {0x5041, 0x10},
 884         {0x5042, 0x10},
 885         {0x5043, 0x84},
 886         {0x5044, 0x62},
 887         {0x5180, 0x00},
 888         {0x5181, 0x10},
 889         {0x5182, 0x02},
 890         {0x5183, 0x0f},
 891         {0x5200, 0x1b},
 892         {0x520b, 0x07},
 893         {0x520c, 0x0f},
 894         {0x5300, 0x04},
 895         {0x5301, 0x0c},
 896         {0x5302, 0x0c},
 897         {0x5303, 0x0f},
 898         {0x5304, 0x00},
 899         {0x5305, 0x70},
 900         {0x5306, 0x00},
 901         {0x5307, 0x80},
 902         {0x5308, 0x00},
 903         {0x5309, 0xa5},
 904         {0x530a, 0x00},
 905         {0x530b, 0xd3},
 906         {0x530c, 0x00},
 907         {0x530d, 0xf0},
 908         {0x530e, 0x01},
 909         {0x530f, 0x10},
 910         {0x5310, 0x01},
 911         {0x5311, 0x20},
 912         {0x5312, 0x01},
 913         {0x5313, 0x20},
 914         {0x5314, 0x01},
 915         {0x5315, 0x20},
 916         {0x5316, 0x08},
 917         {0x5317, 0x08},
 918         {0x5318, 0x10},
 919         {0x5319, 0x88},
 920         {0x531a, 0x88},
 921         {0x531b, 0xa9},
 922         {0x531c, 0xaa},
 923         {0x531d, 0x0a},
 924         {0x5405, 0x02},
 925         {0x5406, 0x67},
 926         {0x5407, 0x01},
 927         {0x5408, 0x4a},
 928 };
 929
 930 static const char * const ov13858_test_pattern_menu[] = {
 931         "Disabled",
 932         "Vertical Color Bar Type 1",
 933         "Vertical Color Bar Type 2",
 934         "Vertical Color Bar Type 3",
 935         "Vertical Color Bar Type 4"
 936 };
 937
 938 /* Configurations for supported link frequencies */
 939 #define OV13858_NUM_OF_LINK_FREQS       2
 940 #define OV13858_LINK_FREQ_540MHZ        540000000ULL
 941 #define OV13858_LINK_FREQ_270MHZ        270000000ULL
 942 #define OV13858_LINK_FREQ_INDEX_0       0
 943 #define OV13858_LINK_FREQ_INDEX_1       1
 944
 945 /*
 946  * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample
 947  * data rate => double data rate; number of lanes => 4; bits per pixel => 10
 948  */
 949 static u64 link_freq_to_pixel_rate(u64 f)
 950 {
 951         f *= 2 * 4;
 952         do_div(f, 10);
 953
 954         return f;
 955 }
 956
 957 /* Menu items for LINK_FREQ V4L2 control */
 958 static const s64 link_freq_menu_items[OV13858_NUM_OF_LINK_FREQS] = {
 959         OV13858_LINK_FREQ_540MHZ,
 960         OV13858_LINK_FREQ_270MHZ
 961 };
 962
 963 /* Link frequency configs */
 964 static const struct ov13858_link_freq_config
 965                         link_freq_configs[OV13858_NUM_OF_LINK_FREQS] = {
 966         {
 967                 .pixels_per_line = OV13858_PPL_540MHZ,
 968                 .reg_list = {
 969                         .num_of_regs = ARRAY_SIZE(mipi_data_rate_1080mbps),
 970                         .regs = mipi_data_rate_1080mbps,
 971                 }
 972         },
 973         {
 974                 .pixels_per_line = OV13858_PPL_270MHZ,
 975                 .reg_list = {
 976                         .num_of_regs = ARRAY_SIZE(mipi_data_rate_540mbps),
 977                         .regs = mipi_data_rate_540mbps,
 978                 }
 979         }
 980 };
 981
 982 /* Mode configs */
 983 static const struct ov13858_mode supported_modes[] = {
 984         {
 985                 .width = 4224,
 986                 .height = 3136,
 987                 .vts_def = OV13858_VTS_30FPS,
 988                 .vts_min = OV13858_VTS_30FPS,
 989                 .reg_list = {
 990                         .num_of_regs = ARRAY_SIZE(mode_4224x3136_regs),
 991                         .regs = mode_4224x3136_regs,
 992                 },
 993                 .link_freq_index = OV13858_LINK_FREQ_INDEX_0,
 994         },
 995         {
 996                 .width = 2112,
 997                 .height = 1568,
 998                 .vts_def = OV13858_VTS_30FPS,
 999                 .vts_min = 1608,
1000                 .reg_list = {
1001                         .num_of_regs = ARRAY_SIZE(mode_2112x1568_regs),
1002                         .regs = mode_2112x1568_regs,
1003                 },
1004                 .link_freq_index = OV13858_LINK_FREQ_INDEX_1,
1005         },
1006         {
1007                 .width = 2112,
1008                 .height = 1188,
1009                 .vts_def = OV13858_VTS_30FPS,
1010                 .vts_min = 1608,
1011                 .reg_list = {
1012                         .num_of_regs = ARRAY_SIZE(mode_2112x1188_regs),
1013                         .regs = mode_2112x1188_regs,
1014                 },
1015                 .link_freq_index = OV13858_LINK_FREQ_INDEX_1,
1016         },
1017         {
1018                 .width = 1056,
1019                 .height = 784,
1020                 .vts_def = OV13858_VTS_30FPS,
1021                 .vts_min = 804,
1022                 .reg_list = {
1023                         .num_of_regs = ARRAY_SIZE(mode_1056x784_regs),
1024                         .regs = mode_1056x784_regs,
1025                 },
1026                 .link_freq_index = OV13858_LINK_FREQ_INDEX_1,
1027         }
1028 };
1029
1030 struct ov13858 {
1031         struct v4l2_subdev sd;
1032         struct media_pad pad;
1033
1034         struct v4l2_ctrl_handler ctrl_handler;
1035         /* V4L2 Controls */
1036         struct v4l2_ctrl *link_freq;
1037         struct v4l2_ctrl *pixel_rate;
1038         struct v4l2_ctrl *vblank;
1039         struct v4l2_ctrl *hblank;
1040         struct v4l2_ctrl *exposure;
1041
1042         /* Current mode */
1043         const struct ov13858_mode *cur_mode;
1044
1045         /* Mutex for serialized access */
1046         struct mutex mutex;
1047
1048         /* Streaming on/off */
1049         bool streaming;
1050 };
1051
1052 #define to_ov13858(_sd) container_of(_sd, struct ov13858, sd)
1053
1054 /* Read registers up to 4 at a time */
1055 static int ov13858_read_reg(struct ov13858 *ov13858, u16 reg, u32 len,
1056                             u32 *val)
1057 {
1058         struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1059         struct i2c_msg msgs[2];
1060         u8 *data_be_p;
1061         int ret;
1062         __be32 data_be = 0;
1063         __be16 reg_addr_be = cpu_to_be16(reg);
1064
1065         if (len > 4)
1066                 return -EINVAL;
1067
1068         data_be_p = (u8 *)&data_be;
1069         /* Write register address */
1070         msgs[0].addr = client->addr;
1071         msgs[0].flags = 0;
1072         msgs[0].len = 2;
1073         msgs[0].buf = (u8 *)&reg_addr_be;
1074
1075         /* Read data from register */
1076         msgs[1].addr = client->addr;
1077         msgs[1].flags = I2C_M_RD;
1078         msgs[1].len = len;
1079         msgs[1].buf = &data_be_p[4 - len];
1080
1081         ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
1082         if (ret != ARRAY_SIZE(msgs))
1083                 return -EIO;
1084
1085         *val = be32_to_cpu(data_be);
1086
1087         return 0;
1088 }
1089
1090 /* Write registers up to 4 at a time */
1091 static int ov13858_write_reg(struct ov13858 *ov13858, u16 reg, u32 len,
1092                              u32 __val)
1093 {
1094         struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1095         int buf_i, val_i;
1096         u8 buf[6], *val_p;
1097         __be32 val;
1098
1099         if (len > 4)
1100                 return -EINVAL;
1101
1102         buf[0] = reg >> 8;
1103         buf[1] = reg & 0xff;
1104
1105         val = cpu_to_be32(__val);
1106         val_p = (u8 *)&val;
1107         buf_i = 2;
1108         val_i = 4 - len;
1109
1110         while (val_i < 4)
1111                 buf[buf_i++] = val_p[val_i++];
1112
1113         if (i2c_master_send(client, buf, len + 2) != len + 2)
1114                 return -EIO;
1115
1116         return 0;
1117 }
1118
1119 /* Write a list of registers */
1120 static int ov13858_write_regs(struct ov13858 *ov13858,
1121                               const struct ov13858_reg *regs, u32 len)
1122 {
1123         struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1124         int ret;
1125         u32 i;
1126
1127         for (i = 0; i < len; i++) {
1128                 ret = ov13858_write_reg(ov13858, regs[i].address, 1,
1129                                         regs[i].val);
1130                 if (ret) {
1131                         dev_err_ratelimited(
1132                                 &client->dev,
1133                                 "Failed to write reg 0x%4.4x. error = %d\n",
1134                                 regs[i].address, ret);
1135
1136                         return ret;
1137                 }
1138         }
1139
1140         return 0;
1141 }
1142
1143 static int ov13858_write_reg_list(struct ov13858 *ov13858,
1144                                   const struct ov13858_reg_list *r_list)
1145 {
1146         return ov13858_write_regs(ov13858, r_list->regs, r_list->num_of_regs);
1147 }
1148
1149 /* Open sub-device */
1150 static int ov13858_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
1151 {
1152         struct ov13858 *ov13858 = to_ov13858(sd);
1153         struct v4l2_mbus_framefmt *try_fmt = v4l2_subdev_get_try_format(sd,
1154                                                                         fh->state,
1155                                                                         0);
1156
1157         mutex_lock(&ov13858->mutex);
1158
1159         /* Initialize try_fmt */
1160         try_fmt->width = ov13858->cur_mode->width;
1161         try_fmt->height = ov13858->cur_mode->height;
1162         try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
1163         try_fmt->field = V4L2_FIELD_NONE;
1164
1165         /* No crop or compose */
1166         mutex_unlock(&ov13858->mutex);
1167
1168         return 0;
1169 }
1170
1171 static int ov13858_update_digital_gain(struct ov13858 *ov13858, u32 d_gain)
1172 {
1173         int ret;
1174
1175         ret = ov13858_write_reg(ov13858, OV13858_REG_B_MWB_GAIN,
1176                                 OV13858_REG_VALUE_16BIT, d_gain);
1177         if (ret)
1178                 return ret;
1179
1180         ret = ov13858_write_reg(ov13858, OV13858_REG_G_MWB_GAIN,
1181                                 OV13858_REG_VALUE_16BIT, d_gain);
1182         if (ret)
1183                 return ret;
1184
1185         ret = ov13858_write_reg(ov13858, OV13858_REG_R_MWB_GAIN,
1186                                 OV13858_REG_VALUE_16BIT, d_gain);
1187
1188         return ret;
1189 }
1190
1191 static int ov13858_enable_test_pattern(struct ov13858 *ov13858, u32 pattern)
1192 {
1193         int ret;
1194         u32 val;
1195
1196         ret = ov13858_read_reg(ov13858, OV13858_REG_TEST_PATTERN,
1197                                OV13858_REG_VALUE_08BIT, &val);
1198         if (ret)
1199                 return ret;
1200
1201         if (pattern) {
1202                 val &= OV13858_TEST_PATTERN_MASK;
1203                 val |= (pattern - 1) | OV13858_TEST_PATTERN_ENABLE;
1204         } else {
1205                 val &= ~OV13858_TEST_PATTERN_ENABLE;
1206         }
1207
1208         return ov13858_write_reg(ov13858, OV13858_REG_TEST_PATTERN,
1209                                  OV13858_REG_VALUE_08BIT, val);
1210 }
1211
1212 static int ov13858_set_ctrl(struct v4l2_ctrl *ctrl)
1213 {
1214         struct ov13858 *ov13858 = container_of(ctrl->handler,
1215                                                struct ov13858, ctrl_handler);
1216         struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1217         s64 max;
1218         int ret;
1219
1220         /* Propagate change of current control to all related controls */
1221         switch (ctrl->id) {
1222         case V4L2_CID_VBLANK:
1223                 /* Update max exposure while meeting expected vblanking */
1224                 max = ov13858->cur_mode->height + ctrl->val - 8;
1225                 __v4l2_ctrl_modify_range(ov13858->exposure,
1226                                          ov13858->exposure->minimum,
1227                                          max, ov13858->exposure->step, max);
1228                 break;
1229         }
1230
1231         /*
1232          * Applying V4L2 control value only happens
1233          * when power is up for streaming
1234          */
1235         if (!pm_runtime_get_if_in_use(&client->dev))
1236                 return 0;
1237
1238         ret = 0;
1239         switch (ctrl->id) {
1240         case V4L2_CID_ANALOGUE_GAIN:
1241                 ret = ov13858_write_reg(ov13858, OV13858_REG_ANALOG_GAIN,
1242                                         OV13858_REG_VALUE_16BIT, ctrl->val);
1243                 break;
1244         case V4L2_CID_DIGITAL_GAIN:
1245                 ret = ov13858_update_digital_gain(ov13858, ctrl->val);
1246                 break;
1247         case V4L2_CID_EXPOSURE:
1248                 ret = ov13858_write_reg(ov13858, OV13858_REG_EXPOSURE,
1249                                         OV13858_REG_VALUE_24BIT,
1250                                         ctrl->val << 4);
1251                 break;
1252         case V4L2_CID_VBLANK:
1253                 /* Update VTS that meets expected vertical blanking */
1254                 ret = ov13858_write_reg(ov13858, OV13858_REG_VTS,
1255                                         OV13858_REG_VALUE_16BIT,
1256                                         ov13858->cur_mode->height
1257                                           + ctrl->val);
1258                 break;
1259         case V4L2_CID_TEST_PATTERN:
1260                 ret = ov13858_enable_test_pattern(ov13858, ctrl->val);
1261                 break;
1262         default:
1263                 dev_info(&client->dev,
1264                          "ctrl(id:0x%x,val:0x%x) is not handled\n",
1265                          ctrl->id, ctrl->val);
1266                 break;
1267         }
1268
1269         pm_runtime_put(&client->dev);
1270
1271         return ret;
1272 }
1273
1274 static const struct v4l2_ctrl_ops ov13858_ctrl_ops = {
1275         .s_ctrl = ov13858_set_ctrl,
1276 };
1277
1278 static int ov13858_enum_mbus_code(struct v4l2_subdev *sd,
1279                                   struct v4l2_subdev_state *sd_state,
1280                                   struct v4l2_subdev_mbus_code_enum *code)
1281 {
1282         /* Only one bayer order(GRBG) is supported */
1283         if (code->index > 0)
1284                 return -EINVAL;
1285
1286         code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
1287
1288         return 0;
1289 }
1290
1291 static int ov13858_enum_frame_size(struct v4l2_subdev *sd,
1292                                    struct v4l2_subdev_state *sd_state,
1293                                    struct v4l2_subdev_frame_size_enum *fse)
1294 {
1295         if (fse->index >= ARRAY_SIZE(supported_modes))
1296                 return -EINVAL;
1297
1298         if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
1299                 return -EINVAL;
1300
1301         fse->min_width = supported_modes[fse->index].width;
1302         fse->max_width = fse->min_width;
1303         fse->min_height = supported_modes[fse->index].height;
1304         fse->max_height = fse->min_height;
1305
1306         return 0;
1307 }
1308
1309 static void ov13858_update_pad_format(const struct ov13858_mode *mode,
1310                                       struct v4l2_subdev_format *fmt)
1311 {
1312         fmt->format.width = mode->width;
1313         fmt->format.height = mode->height;
1314         fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
1315         fmt->format.field = V4L2_FIELD_NONE;
1316 }
1317
1318 static int ov13858_do_get_pad_format(struct ov13858 *ov13858,
1319                                      struct v4l2_subdev_state *sd_state,
1320                                      struct v4l2_subdev_format *fmt)
1321 {
1322         struct v4l2_mbus_framefmt *framefmt;
1323         struct v4l2_subdev *sd = &ov13858->sd;
1324
1325         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1326                 framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
1327                 fmt->format = *framefmt;
1328         } else {
1329                 ov13858_update_pad_format(ov13858->cur_mode, fmt);
1330         }
1331
1332         return 0;
1333 }
1334
1335 static int ov13858_get_pad_format(struct v4l2_subdev *sd,
1336                                   struct v4l2_subdev_state *sd_state,
1337                                   struct v4l2_subdev_format *fmt)
1338 {
1339         struct ov13858 *ov13858 = to_ov13858(sd);
1340         int ret;
1341
1342         mutex_lock(&ov13858->mutex);
1343         ret = ov13858_do_get_pad_format(ov13858, sd_state, fmt);
1344         mutex_unlock(&ov13858->mutex);
1345
1346         return ret;
1347 }
1348
1349 static int
1350 ov13858_set_pad_format(struct v4l2_subdev *sd,
1351                        struct v4l2_subdev_state *sd_state,
1352                        struct v4l2_subdev_format *fmt)
1353 {
1354         struct ov13858 *ov13858 = to_ov13858(sd);
1355         const struct ov13858_mode *mode;
1356         struct v4l2_mbus_framefmt *framefmt;
1357         s32 vblank_def;
1358         s32 vblank_min;
1359         s64 h_blank;
1360         s64 pixel_rate;
1361         s64 link_freq;
1362
1363         mutex_lock(&ov13858->mutex);
1364
1365         /* Only one raw bayer(GRBG) order is supported */
1366         if (fmt->format.code != MEDIA_BUS_FMT_SGRBG10_1X10)
1367                 fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
1368
1369         mode = v4l2_find_nearest_size(supported_modes,
1370                                       ARRAY_SIZE(supported_modes),
1371                                       width, height,
1372                                       fmt->format.width, fmt->format.height);
1373         ov13858_update_pad_format(mode, fmt);
1374         if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1375                 framefmt = v4l2_subdev_get_try_format(sd, sd_state, fmt->pad);
1376                 *framefmt = fmt->format;
1377         } else {
1378                 ov13858->cur_mode = mode;
1379                 __v4l2_ctrl_s_ctrl(ov13858->link_freq, mode->link_freq_index);
1380                 link_freq = link_freq_menu_items[mode->link_freq_index];
1381                 pixel_rate = link_freq_to_pixel_rate(link_freq);
1382                 __v4l2_ctrl_s_ctrl_int64(ov13858->pixel_rate, pixel_rate);
1383
1384                 /* Update limits and set FPS to default */
1385                 vblank_def = ov13858->cur_mode->vts_def -
1386                              ov13858->cur_mode->height;
1387                 vblank_min = ov13858->cur_mode->vts_min -
1388                              ov13858->cur_mode->height;
1389                 __v4l2_ctrl_modify_range(
1390                         ov13858->vblank, vblank_min,
1391                         OV13858_VTS_MAX - ov13858->cur_mode->height, 1,
1392                         vblank_def);
1393                 __v4l2_ctrl_s_ctrl(ov13858->vblank, vblank_def);
1394                 h_blank =
1395                         link_freq_configs[mode->link_freq_index].pixels_per_line
1396                          - ov13858->cur_mode->width;
1397                 __v4l2_ctrl_modify_range(ov13858->hblank, h_blank,
1398                                          h_blank, 1, h_blank);
1399         }
1400
1401         mutex_unlock(&ov13858->mutex);
1402
1403         return 0;
1404 }
1405
1406 static int ov13858_get_skip_frames(struct v4l2_subdev *sd, u32 *frames)
1407 {
1408         *frames = OV13858_NUM_OF_SKIP_FRAMES;
1409
1410         return 0;
1411 }
1412
1413 /* Start streaming */
1414 static int ov13858_start_streaming(struct ov13858 *ov13858)
1415 {
1416         struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1417         const struct ov13858_reg_list *reg_list;
1418         int ret, link_freq_index;
1419
1420         /* Get out of from software reset */
1421         ret = ov13858_write_reg(ov13858, OV13858_REG_SOFTWARE_RST,
1422                                 OV13858_REG_VALUE_08BIT, OV13858_SOFTWARE_RST);
1423         if (ret) {
1424                 dev_err(&client->dev, "%s failed to set powerup registers\n",
1425                         __func__);
1426                 return ret;
1427         }
1428
1429         /* Setup PLL */
1430         link_freq_index = ov13858->cur_mode->link_freq_index;
1431         reg_list = &link_freq_configs[link_freq_index].reg_list;
1432         ret = ov13858_write_reg_list(ov13858, reg_list);
1433         if (ret) {
1434                 dev_err(&client->dev, "%s failed to set plls\n", __func__);
1435                 return ret;
1436         }
1437
1438         /* Apply default values of current mode */
1439         reg_list = &ov13858->cur_mode->reg_list;
1440         ret = ov13858_write_reg_list(ov13858, reg_list);
1441         if (ret) {
1442                 dev_err(&client->dev, "%s failed to set mode\n", __func__);
1443                 return ret;
1444         }
1445
1446         /* Apply customized values from user */
1447         ret =  __v4l2_ctrl_handler_setup(ov13858->sd.ctrl_handler);
1448         if (ret)
1449                 return ret;
1450
1451         return ov13858_write_reg(ov13858, OV13858_REG_MODE_SELECT,
1452                                  OV13858_REG_VALUE_08BIT,
1453                                  OV13858_MODE_STREAMING);
1454 }
1455
1456 /* Stop streaming */
1457 static int ov13858_stop_streaming(struct ov13858 *ov13858)
1458 {
1459         return ov13858_write_reg(ov13858, OV13858_REG_MODE_SELECT,
1460                                  OV13858_REG_VALUE_08BIT, OV13858_MODE_STANDBY);
1461 }
1462
1463 static int ov13858_set_stream(struct v4l2_subdev *sd, int enable)
1464 {
1465         struct ov13858 *ov13858 = to_ov13858(sd);
1466         struct i2c_client *client = v4l2_get_subdevdata(sd);
1467         int ret = 0;
1468
1469         mutex_lock(&ov13858->mutex);
1470         if (ov13858->streaming == enable) {
1471                 mutex_unlock(&ov13858->mutex);
1472                 return 0;
1473         }
1474
1475         if (enable) {
1476                 ret = pm_runtime_resume_and_get(&client->dev);
1477                 if (ret < 0)
1478                         goto err_unlock;
1479
1480                 /*
1481                  * Apply default & customized values
1482                  * and then start streaming.
1483                  */
1484                 ret = ov13858_start_streaming(ov13858);
1485                 if (ret)
1486                         goto err_rpm_put;
1487         } else {
1488                 ov13858_stop_streaming(ov13858);
1489                 pm_runtime_put(&client->dev);
1490         }
1491
1492         ov13858->streaming = enable;
1493         mutex_unlock(&ov13858->mutex);
1494
1495         return ret;
1496
1497 err_rpm_put:
1498         pm_runtime_put(&client->dev);
1499 err_unlock:
1500         mutex_unlock(&ov13858->mutex);
1501
1502         return ret;
1503 }
1504
1505 static int __maybe_unused ov13858_suspend(struct device *dev)
1506 {
1507         struct v4l2_subdev *sd = dev_get_drvdata(dev);
1508         struct ov13858 *ov13858 = to_ov13858(sd);
1509
1510         if (ov13858->streaming)
1511                 ov13858_stop_streaming(ov13858);
1512
1513         return 0;
1514 }
1515
1516 static int __maybe_unused ov13858_resume(struct device *dev)
1517 {
1518         struct v4l2_subdev *sd = dev_get_drvdata(dev);
1519         struct ov13858 *ov13858 = to_ov13858(sd);
1520         int ret;
1521
1522         if (ov13858->streaming) {
1523                 ret = ov13858_start_streaming(ov13858);
1524                 if (ret)
1525                         goto error;
1526         }
1527
1528         return 0;
1529
1530 error:
1531         ov13858_stop_streaming(ov13858);
1532         ov13858->streaming = false;
1533         return ret;
1534 }
1535
1536 /* Verify chip ID */
1537 static int ov13858_identify_module(struct ov13858 *ov13858)
1538 {
1539         struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1540         int ret;
1541         u32 val;
1542
1543         ret = ov13858_read_reg(ov13858, OV13858_REG_CHIP_ID,
1544                                OV13858_REG_VALUE_24BIT, &val);
1545         if (ret)
1546                 return ret;
1547
1548         if (val != OV13858_CHIP_ID) {
1549                 dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
1550                         OV13858_CHIP_ID, val);
1551                 return -EIO;
1552         }
1553
1554         return 0;
1555 }
1556
1557 static const struct v4l2_subdev_core_ops ov13858_core_ops = {
1558         .log_status = v4l2_ctrl_subdev_log_status,
1559         .subscribe_event = v4l2_ctrl_subdev_subscribe_event,
1560         .unsubscribe_event = v4l2_event_subdev_unsubscribe,
1561 };
1562
1563 static const struct v4l2_subdev_video_ops ov13858_video_ops = {
1564         .s_stream = ov13858_set_stream,
1565 };
1566
1567 static const struct v4l2_subdev_pad_ops ov13858_pad_ops = {
1568         .enum_mbus_code = ov13858_enum_mbus_code,
1569         .get_fmt = ov13858_get_pad_format,
1570         .set_fmt = ov13858_set_pad_format,
1571         .enum_frame_size = ov13858_enum_frame_size,
1572 };
1573
1574 static const struct v4l2_subdev_sensor_ops ov13858_sensor_ops = {
1575         .g_skip_frames = ov13858_get_skip_frames,
1576 };
1577
1578 static const struct v4l2_subdev_ops ov13858_subdev_ops = {
1579         .core = &ov13858_core_ops,
1580         .video = &ov13858_video_ops,
1581         .pad = &ov13858_pad_ops,
1582         .sensor = &ov13858_sensor_ops,
1583 };
1584
1585 static const struct media_entity_operations ov13858_subdev_entity_ops = {
1586         .link_validate = v4l2_subdev_link_validate,
1587 };
1588
1589 static const struct v4l2_subdev_internal_ops ov13858_internal_ops = {
1590         .open = ov13858_open,
1591 };
1592
1593 /* Initialize control handlers */
1594 static int ov13858_init_controls(struct ov13858 *ov13858)
1595 {
1596         struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1597         struct v4l2_fwnode_device_properties props;
1598         struct v4l2_ctrl_handler *ctrl_hdlr;
1599         s64 exposure_max;
1600         s64 vblank_def;
1601         s64 vblank_min;
1602         s64 hblank;
1603         s64 pixel_rate_min;
1604         s64 pixel_rate_max;
1605         const struct ov13858_mode *mode;
1606         int ret;
1607
1608         ctrl_hdlr = &ov13858->ctrl_handler;
1609         ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10);
1610         if (ret)
1611                 return ret;
1612
1613         mutex_init(&ov13858->mutex);
1614         ctrl_hdlr->lock = &ov13858->mutex;
1615         ov13858->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr,
1616                                 &ov13858_ctrl_ops,
1617                                 V4L2_CID_LINK_FREQ,
1618                                 OV13858_NUM_OF_LINK_FREQS - 1,
1619                                 0,
1620                                 link_freq_menu_items);
1621         if (ov13858->link_freq)
1622                 ov13858->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1623
1624         pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]);
1625         pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]);
1626         /* By default, PIXEL_RATE is read only */
1627         ov13858->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov13858_ctrl_ops,
1628                                                 V4L2_CID_PIXEL_RATE,
1629                                                 pixel_rate_min, pixel_rate_max,
1630                                                 1, pixel_rate_max);
1631
1632         mode = ov13858->cur_mode;
1633         vblank_def = mode->vts_def - mode->height;
1634         vblank_min = mode->vts_min - mode->height;
1635         ov13858->vblank = v4l2_ctrl_new_std(
1636                                 ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_VBLANK,
1637                                 vblank_min, OV13858_VTS_MAX - mode->height, 1,
1638                                 vblank_def);
1639
1640         hblank = link_freq_configs[mode->link_freq_index].pixels_per_line -
1641                  mode->width;
1642         ov13858->hblank = v4l2_ctrl_new_std(
1643                                 ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_HBLANK,
1644                                 hblank, hblank, 1, hblank);
1645         if (ov13858->hblank)
1646                 ov13858->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1647
1648         exposure_max = mode->vts_def - 8;
1649         ov13858->exposure = v4l2_ctrl_new_std(
1650                                 ctrl_hdlr, &ov13858_ctrl_ops,
1651                                 V4L2_CID_EXPOSURE, OV13858_EXPOSURE_MIN,
1652                                 exposure_max, OV13858_EXPOSURE_STEP,
1653                                 OV13858_EXPOSURE_DEFAULT);
1654
1655         v4l2_ctrl_new_std(ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
1656                           OV13858_ANA_GAIN_MIN, OV13858_ANA_GAIN_MAX,
1657                           OV13858_ANA_GAIN_STEP, OV13858_ANA_GAIN_DEFAULT);
1658
1659         /* Digital gain */
1660         v4l2_ctrl_new_std(ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
1661                           OV13858_DGTL_GAIN_MIN, OV13858_DGTL_GAIN_MAX,
1662                           OV13858_DGTL_GAIN_STEP, OV13858_DGTL_GAIN_DEFAULT);
1663
1664         v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov13858_ctrl_ops,
1665                                      V4L2_CID_TEST_PATTERN,
1666                                      ARRAY_SIZE(ov13858_test_pattern_menu) - 1,
1667                                      0, 0, ov13858_test_pattern_menu);
1668         if (ctrl_hdlr->error) {
1669                 ret = ctrl_hdlr->error;
1670                 dev_err(&client->dev, "%s control init failed (%d)\n",
1671                         __func__, ret);
1672                 goto error;
1673         }
1674
1675         ret = v4l2_fwnode_device_parse(&client->dev, &props);
1676         if (ret)
1677                 goto error;
1678
1679         ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &ov13858_ctrl_ops,
1680                                               &props);
1681         if (ret)
1682                 goto error;
1683
1684         ov13858->sd.ctrl_handler = ctrl_hdlr;
1685
1686         return 0;
1687
1688 error:
1689         v4l2_ctrl_handler_free(ctrl_hdlr);
1690         mutex_destroy(&ov13858->mutex);
1691
1692         return ret;
1693 }
1694
1695 static void ov13858_free_controls(struct ov13858 *ov13858)
1696 {
1697         v4l2_ctrl_handler_free(ov13858->sd.ctrl_handler);
1698         mutex_destroy(&ov13858->mutex);
1699 }
1700
1701 static int ov13858_probe(struct i2c_client *client)
1702 {
1703         struct ov13858 *ov13858;
1704         int ret;
1705         u32 val = 0;
1706
1707         device_property_read_u32(&client->dev, "clock-frequency", &val);
1708         if (val != 19200000)
1709                 return -EINVAL;
1710
1711         ov13858 = devm_kzalloc(&client->dev, sizeof(*ov13858), GFP_KERNEL);
1712         if (!ov13858)
1713                 return -ENOMEM;
1714
1715         /* Initialize subdev */
1716         v4l2_i2c_subdev_init(&ov13858->sd, client, &ov13858_subdev_ops);
1717
1718         /* Check module identity */
1719         ret = ov13858_identify_module(ov13858);
1720         if (ret) {
1721                 dev_err(&client->dev, "failed to find sensor: %d\n", ret);
1722                 return ret;
1723         }
1724
1725         /* Set default mode to max resolution */
1726         ov13858->cur_mode = &supported_modes[0];
1727
1728         ret = ov13858_init_controls(ov13858);
1729         if (ret)
1730                 return ret;
1731
1732         /* Initialize subdev */
1733         ov13858->sd.internal_ops = &ov13858_internal_ops;
1734         ov13858->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE |
1735                              V4L2_SUBDEV_FL_HAS_EVENTS;
1736         ov13858->sd.entity.ops = &ov13858_subdev_entity_ops;
1737         ov13858->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
1738
1739         /* Initialize source pad */
1740         ov13858->pad.flags = MEDIA_PAD_FL_SOURCE;
1741         ret = media_entity_pads_init(&ov13858->sd.entity, 1, &ov13858->pad);
1742         if (ret) {
1743                 dev_err(&client->dev, "%s failed:%d\n", __func__, ret);
1744                 goto error_handler_free;
1745         }
1746
1747         ret = v4l2_async_register_subdev_sensor(&ov13858->sd);
1748         if (ret < 0)
1749                 goto error_media_entity;
1750
1751         /*
1752          * Device is already turned on by i2c-core with ACPI domain PM.
1753          * Enable runtime PM and turn off the device.
1754          */
1755         pm_runtime_set_active(&client->dev);
1756         pm_runtime_enable(&client->dev);
1757         pm_runtime_idle(&client->dev);
1758
1759         return 0;
1760
1761 error_media_entity:
1762         media_entity_cleanup(&ov13858->sd.entity);
1763
1764 error_handler_free:
1765         ov13858_free_controls(ov13858);
1766         dev_err(&client->dev, "%s failed:%d\n", __func__, ret);
1767
1768         return ret;
1769 }
1770
1771 static void ov13858_remove(struct i2c_client *client)
1772 {
1773         struct v4l2_subdev *sd = i2c_get_clientdata(client);
1774         struct ov13858 *ov13858 = to_ov13858(sd);
1775
1776         v4l2_async_unregister_subdev(sd);
1777         media_entity_cleanup(&sd->entity);
1778         ov13858_free_controls(ov13858);
1779
1780         pm_runtime_disable(&client->dev);
1781 }
1782
1783 static const struct i2c_device_id ov13858_id_table[] = {
1784         {"ov13858", 0},
1785         {},
1786 };
1787
1788 MODULE_DEVICE_TABLE(i2c, ov13858_id_table);
1789
1790 static const struct dev_pm_ops ov13858_pm_ops = {
1791         SET_SYSTEM_SLEEP_PM_OPS(ov13858_suspend, ov13858_resume)
1792 };
1793
1794 #ifdef CONFIG_ACPI
1795 static const struct acpi_device_id ov13858_acpi_ids[] = {
1796         {"OVTID858"},
1797         { /* sentinel */ }
1798 };
1799
1800 MODULE_DEVICE_TABLE(acpi, ov13858_acpi_ids);
1801 #endif
1802
1803 static struct i2c_driver ov13858_i2c_driver = {
1804         .driver = {
1805                 .name = "ov13858",
1806                 .pm = &ov13858_pm_ops,
1807                 .acpi_match_table = ACPI_PTR(ov13858_acpi_ids),
1808         },
1809         .probe = ov13858_probe,
1810         .remove = ov13858_remove,
1811         .id_table = ov13858_id_table,
1812 };
1813
1814 module_i2c_driver(ov13858_i2c_driver);
1815
1816 MODULE_AUTHOR("Kan, Chris <chris.kan@intel.com>");
1817 MODULE_AUTHOR("Rapolu, Chiranjeevi <chiranjeevi.rapolu@intel.com>");
1818 MODULE_AUTHOR("Yang, Hyungwoo");
1819 MODULE_DESCRIPTION("Omnivision ov13858 sensor driver");
1820 MODULE_LICENSE("GPL v2");