linux/drivers/media/i2c/ov13858.c
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   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-fwnode.h>
  11
  12#define OV13858_REG_VALUE_08BIT         1
  13#define OV13858_REG_VALUE_16BIT         2
  14#define OV13858_REG_VALUE_24BIT         3
  15
  16#define OV13858_REG_MODE_SELECT         0x0100
  17#define OV13858_MODE_STANDBY            0x00
  18#define OV13858_MODE_STREAMING          0x01
  19
  20#define OV13858_REG_SOFTWARE_RST        0x0103
  21#define OV13858_SOFTWARE_RST            0x01
  22
  23/* PLL1 generates PCLK and MIPI_PHY_CLK */
  24#define OV13858_REG_PLL1_CTRL_0         0x0300
  25#define OV13858_REG_PLL1_CTRL_1         0x0301
  26#define OV13858_REG_PLL1_CTRL_2         0x0302
  27#define OV13858_REG_PLL1_CTRL_3         0x0303
  28#define OV13858_REG_PLL1_CTRL_4         0x0304
  29#define OV13858_REG_PLL1_CTRL_5         0x0305
  30
  31/* PLL2 generates DAC_CLK, SCLK and SRAM_CLK */
  32#define OV13858_REG_PLL2_CTRL_B         0x030b
  33#define OV13858_REG_PLL2_CTRL_C         0x030c
  34#define OV13858_REG_PLL2_CTRL_D         0x030d
  35#define OV13858_REG_PLL2_CTRL_E         0x030e
  36#define OV13858_REG_PLL2_CTRL_F         0x030f
  37#define OV13858_REG_PLL2_CTRL_12        0x0312
  38#define OV13858_REG_MIPI_SC_CTRL0       0x3016
  39#define OV13858_REG_MIPI_SC_CTRL1       0x3022
  40
  41/* Chip ID */
  42#define OV13858_REG_CHIP_ID             0x300a
  43#define OV13858_CHIP_ID                 0x00d855
  44
  45/* V_TIMING internal */
  46#define OV13858_REG_VTS                 0x380e
  47#define OV13858_VTS_30FPS               0x0c8e /* 30 fps */
  48#define OV13858_VTS_60FPS               0x0648 /* 60 fps */
  49#define OV13858_VTS_MAX                 0x7fff
  50
  51/* HBLANK control - read only */
  52#define OV13858_PPL_270MHZ              2244
  53#define OV13858_PPL_540MHZ              4488
  54
  55/* Exposure control */
  56#define OV13858_REG_EXPOSURE            0x3500
  57#define OV13858_EXPOSURE_MIN            4
  58#define OV13858_EXPOSURE_STEP           1
  59#define OV13858_EXPOSURE_DEFAULT        0x640
  60
  61/* Analog gain control */
  62#define OV13858_REG_ANALOG_GAIN         0x3508
  63#define OV13858_ANA_GAIN_MIN            0
  64#define OV13858_ANA_GAIN_MAX            0x1fff
  65#define OV13858_ANA_GAIN_STEP           1
  66#define OV13858_ANA_GAIN_DEFAULT        0x80
  67
  68/* Digital gain control */
  69#define OV13858_REG_B_MWB_GAIN          0x5100
  70#define OV13858_REG_G_MWB_GAIN          0x5102
  71#define OV13858_REG_R_MWB_GAIN          0x5104
  72#define OV13858_DGTL_GAIN_MIN           0
  73#define OV13858_DGTL_GAIN_MAX           16384   /* Max = 16 X */
  74#define OV13858_DGTL_GAIN_DEFAULT       1024    /* Default gain = 1 X */
  75#define OV13858_DGTL_GAIN_STEP          1       /* Each step = 1/1024 */
  76
  77/* Test Pattern Control */
  78#define OV13858_REG_TEST_PATTERN        0x4503
  79#define OV13858_TEST_PATTERN_ENABLE     BIT(7)
  80#define OV13858_TEST_PATTERN_MASK       0xfc
  81
  82/* Number of frames to skip */
  83#define OV13858_NUM_OF_SKIP_FRAMES      2
  84
  85struct ov13858_reg {
  86        u16 address;
  87        u8 val;
  88};
  89
  90struct ov13858_reg_list {
  91        u32 num_of_regs;
  92        const struct ov13858_reg *regs;
  93};
  94
  95/* Link frequency config */
  96struct ov13858_link_freq_config {
  97        u32 pixels_per_line;
  98
  99        /* PLL registers for this link frequency */
 100        struct ov13858_reg_list reg_list;
 101};
 102
 103/* Mode : resolution and related config&values */
 104struct ov13858_mode {
 105        /* Frame width */
 106        u32 width;
 107        /* Frame height */
 108        u32 height;
 109
 110        /* V-timing */
 111        u32 vts_def;
 112        u32 vts_min;
 113
 114        /* Index of Link frequency config to be used */
 115        u32 link_freq_index;
 116        /* Default register values */
 117        struct ov13858_reg_list reg_list;
 118};
 119
 120/* 4224x3136 needs 1080Mbps/lane, 4 lanes */
 121static const struct ov13858_reg mipi_data_rate_1080mbps[] = {
 122        /* PLL1 registers */
 123        {OV13858_REG_PLL1_CTRL_0, 0x07},
 124        {OV13858_REG_PLL1_CTRL_1, 0x01},
 125        {OV13858_REG_PLL1_CTRL_2, 0xc2},
 126        {OV13858_REG_PLL1_CTRL_3, 0x00},
 127        {OV13858_REG_PLL1_CTRL_4, 0x00},
 128        {OV13858_REG_PLL1_CTRL_5, 0x01},
 129
 130        /* PLL2 registers */
 131        {OV13858_REG_PLL2_CTRL_B, 0x05},
 132        {OV13858_REG_PLL2_CTRL_C, 0x01},
 133        {OV13858_REG_PLL2_CTRL_D, 0x0e},
 134        {OV13858_REG_PLL2_CTRL_E, 0x05},
 135        {OV13858_REG_PLL2_CTRL_F, 0x01},
 136        {OV13858_REG_PLL2_CTRL_12, 0x01},
 137        {OV13858_REG_MIPI_SC_CTRL0, 0x72},
 138        {OV13858_REG_MIPI_SC_CTRL1, 0x01},
 139};
 140
 141/*
 142 * 2112x1568, 2112x1188, 1056x784 need 540Mbps/lane,
 143 * 4 lanes
 144 */
 145static const struct ov13858_reg mipi_data_rate_540mbps[] = {
 146        /* PLL1 registers */
 147        {OV13858_REG_PLL1_CTRL_0, 0x07},
 148        {OV13858_REG_PLL1_CTRL_1, 0x01},
 149        {OV13858_REG_PLL1_CTRL_2, 0xc2},
 150        {OV13858_REG_PLL1_CTRL_3, 0x01},
 151        {OV13858_REG_PLL1_CTRL_4, 0x00},
 152        {OV13858_REG_PLL1_CTRL_5, 0x01},
 153
 154        /* PLL2 registers */
 155        {OV13858_REG_PLL2_CTRL_B, 0x05},
 156        {OV13858_REG_PLL2_CTRL_C, 0x01},
 157        {OV13858_REG_PLL2_CTRL_D, 0x0e},
 158        {OV13858_REG_PLL2_CTRL_E, 0x05},
 159        {OV13858_REG_PLL2_CTRL_F, 0x01},
 160        {OV13858_REG_PLL2_CTRL_12, 0x01},
 161        {OV13858_REG_MIPI_SC_CTRL0, 0x72},
 162        {OV13858_REG_MIPI_SC_CTRL1, 0x01},
 163};
 164
 165static const struct ov13858_reg mode_4224x3136_regs[] = {
 166        {0x3013, 0x32},
 167        {0x301b, 0xf0},
 168        {0x301f, 0xd0},
 169        {0x3106, 0x15},
 170        {0x3107, 0x23},
 171        {0x350a, 0x00},
 172        {0x350e, 0x00},
 173        {0x3510, 0x00},
 174        {0x3511, 0x02},
 175        {0x3512, 0x00},
 176        {0x3600, 0x2b},
 177        {0x3601, 0x52},
 178        {0x3602, 0x60},
 179        {0x3612, 0x05},
 180        {0x3613, 0xa4},
 181        {0x3620, 0x80},
 182        {0x3621, 0x10},
 183        {0x3622, 0x30},
 184        {0x3624, 0x1c},
 185        {0x3640, 0x10},
 186        {0x3641, 0x70},
 187        {0x3660, 0x04},
 188        {0x3661, 0x80},
 189        {0x3662, 0x12},
 190        {0x3664, 0x73},
 191        {0x3665, 0xa7},
 192        {0x366e, 0xff},
 193        {0x366f, 0xf4},
 194        {0x3674, 0x00},
 195        {0x3679, 0x0c},
 196        {0x367f, 0x01},
 197        {0x3680, 0x0c},
 198        {0x3681, 0x50},
 199        {0x3682, 0x50},
 200        {0x3683, 0xa9},
 201        {0x3684, 0xa9},
 202        {0x3709, 0x5f},
 203        {0x3714, 0x24},
 204        {0x371a, 0x3e},
 205        {0x3737, 0x04},
 206        {0x3738, 0xcc},
 207        {0x3739, 0x12},
 208        {0x373d, 0x26},
 209        {0x3764, 0x20},
 210        {0x3765, 0x20},
 211        {0x37a1, 0x36},
 212        {0x37a8, 0x3b},
 213        {0x37ab, 0x31},
 214        {0x37c2, 0x04},
 215        {0x37c3, 0xf1},
 216        {0x37c5, 0x00},
 217        {0x37d8, 0x03},
 218        {0x37d9, 0x0c},
 219        {0x37da, 0xc2},
 220        {0x37dc, 0x02},
 221        {0x37e0, 0x00},
 222        {0x37e1, 0x0a},
 223        {0x37e2, 0x14},
 224        {0x37e3, 0x04},
 225        {0x37e4, 0x2a},
 226        {0x37e5, 0x03},
 227        {0x37e6, 0x04},
 228        {0x3800, 0x00},
 229        {0x3801, 0x00},
 230        {0x3802, 0x00},
 231        {0x3803, 0x08},
 232        {0x3804, 0x10},
 233        {0x3805, 0x9f},
 234        {0x3806, 0x0c},
 235        {0x3807, 0x57},
 236        {0x3808, 0x10},
 237        {0x3809, 0x80},
 238        {0x380a, 0x0c},
 239        {0x380b, 0x40},
 240        {0x380c, 0x04},
 241        {0x380d, 0x62},
 242        {0x380e, 0x0c},
 243        {0x380f, 0x8e},
 244        {0x3811, 0x04},
 245        {0x3813, 0x05},
 246        {0x3814, 0x01},
 247        {0x3815, 0x01},
 248        {0x3816, 0x01},
 249        {0x3817, 0x01},
 250        {0x3820, 0xa8},
 251        {0x3821, 0x00},
 252        {0x3822, 0xc2},
 253        {0x3823, 0x18},
 254        {0x3826, 0x11},
 255        {0x3827, 0x1c},
 256        {0x3829, 0x03},
 257        {0x3832, 0x00},
 258        {0x3c80, 0x00},
 259        {0x3c87, 0x01},
 260        {0x3c8c, 0x19},
 261        {0x3c8d, 0x1c},
 262        {0x3c90, 0x00},
 263        {0x3c91, 0x00},
 264        {0x3c92, 0x00},
 265        {0x3c93, 0x00},
 266        {0x3c94, 0x40},
 267        {0x3c95, 0x54},
 268        {0x3c96, 0x34},
 269        {0x3c97, 0x04},
 270        {0x3c98, 0x00},
 271        {0x3d8c, 0x73},
 272        {0x3d8d, 0xc0},
 273        {0x3f00, 0x0b},
 274        {0x3f03, 0x00},
 275        {0x4001, 0xe0},
 276        {0x4008, 0x00},
 277        {0x4009, 0x0f},
 278        {0x4011, 0xf0},
 279        {0x4017, 0x08},
 280        {0x4050, 0x04},
 281        {0x4051, 0x0b},
 282        {0x4052, 0x00},
 283        {0x4053, 0x80},
 284        {0x4054, 0x00},
 285        {0x4055, 0x80},
 286        {0x4056, 0x00},
 287        {0x4057, 0x80},
 288        {0x4058, 0x00},
 289        {0x4059, 0x80},
 290        {0x405e, 0x20},
 291        {0x4500, 0x07},
 292        {0x4503, 0x00},
 293        {0x450a, 0x04},
 294        {0x4809, 0x04},
 295        {0x480c, 0x12},
 296        {0x481f, 0x30},
 297        {0x4833, 0x10},
 298        {0x4837, 0x0e},
 299        {0x4902, 0x01},
 300        {0x4d00, 0x03},
 301        {0x4d01, 0xc9},
 302        {0x4d02, 0xbc},
 303        {0x4d03, 0xd7},
 304        {0x4d04, 0xf0},
 305        {0x4d05, 0xa2},
 306        {0x5000, 0xfd},
 307        {0x5001, 0x01},
 308        {0x5040, 0x39},
 309        {0x5041, 0x10},
 310        {0x5042, 0x10},
 311        {0x5043, 0x84},
 312        {0x5044, 0x62},
 313        {0x5180, 0x00},
 314        {0x5181, 0x10},
 315        {0x5182, 0x02},
 316        {0x5183, 0x0f},
 317        {0x5200, 0x1b},
 318        {0x520b, 0x07},
 319        {0x520c, 0x0f},
 320        {0x5300, 0x04},
 321        {0x5301, 0x0c},
 322        {0x5302, 0x0c},
 323        {0x5303, 0x0f},
 324        {0x5304, 0x00},
 325        {0x5305, 0x70},
 326        {0x5306, 0x00},
 327        {0x5307, 0x80},
 328        {0x5308, 0x00},
 329        {0x5309, 0xa5},
 330        {0x530a, 0x00},
 331        {0x530b, 0xd3},
 332        {0x530c, 0x00},
 333        {0x530d, 0xf0},
 334        {0x530e, 0x01},
 335        {0x530f, 0x10},
 336        {0x5310, 0x01},
 337        {0x5311, 0x20},
 338        {0x5312, 0x01},
 339        {0x5313, 0x20},
 340        {0x5314, 0x01},
 341        {0x5315, 0x20},
 342        {0x5316, 0x08},
 343        {0x5317, 0x08},
 344        {0x5318, 0x10},
 345        {0x5319, 0x88},
 346        {0x531a, 0x88},
 347        {0x531b, 0xa9},
 348        {0x531c, 0xaa},
 349        {0x531d, 0x0a},
 350        {0x5405, 0x02},
 351        {0x5406, 0x67},
 352        {0x5407, 0x01},
 353        {0x5408, 0x4a},
 354};
 355
 356static const struct ov13858_reg mode_2112x1568_regs[] = {
 357        {0x3013, 0x32},
 358        {0x301b, 0xf0},
 359        {0x301f, 0xd0},
 360        {0x3106, 0x15},
 361        {0x3107, 0x23},
 362        {0x350a, 0x00},
 363        {0x350e, 0x00},
 364        {0x3510, 0x00},
 365        {0x3511, 0x02},
 366        {0x3512, 0x00},
 367        {0x3600, 0x2b},
 368        {0x3601, 0x52},
 369        {0x3602, 0x60},
 370        {0x3612, 0x05},
 371        {0x3613, 0xa4},
 372        {0x3620, 0x80},
 373        {0x3621, 0x10},
 374        {0x3622, 0x30},
 375        {0x3624, 0x1c},
 376        {0x3640, 0x10},
 377        {0x3641, 0x70},
 378        {0x3660, 0x04},
 379        {0x3661, 0x80},
 380        {0x3662, 0x10},
 381        {0x3664, 0x73},
 382        {0x3665, 0xa7},
 383        {0x366e, 0xff},
 384        {0x366f, 0xf4},
 385        {0x3674, 0x00},
 386        {0x3679, 0x0c},
 387        {0x367f, 0x01},
 388        {0x3680, 0x0c},
 389        {0x3681, 0x50},
 390        {0x3682, 0x50},
 391        {0x3683, 0xa9},
 392        {0x3684, 0xa9},
 393        {0x3709, 0x5f},
 394        {0x3714, 0x28},
 395        {0x371a, 0x3e},
 396        {0x3737, 0x08},
 397        {0x3738, 0xcc},
 398        {0x3739, 0x20},
 399        {0x373d, 0x26},
 400        {0x3764, 0x20},
 401        {0x3765, 0x20},
 402        {0x37a1, 0x36},
 403        {0x37a8, 0x3b},
 404        {0x37ab, 0x31},
 405        {0x37c2, 0x14},
 406        {0x37c3, 0xf1},
 407        {0x37c5, 0x00},
 408        {0x37d8, 0x03},
 409        {0x37d9, 0x0c},
 410        {0x37da, 0xc2},
 411        {0x37dc, 0x02},
 412        {0x37e0, 0x00},
 413        {0x37e1, 0x0a},
 414        {0x37e2, 0x14},
 415        {0x37e3, 0x08},
 416        {0x37e4, 0x38},
 417        {0x37e5, 0x03},
 418        {0x37e6, 0x08},
 419        {0x3800, 0x00},
 420        {0x3801, 0x00},
 421        {0x3802, 0x00},
 422        {0x3803, 0x00},
 423        {0x3804, 0x10},
 424        {0x3805, 0x9f},
 425        {0x3806, 0x0c},
 426        {0x3807, 0x5f},
 427        {0x3808, 0x08},
 428        {0x3809, 0x40},
 429        {0x380a, 0x06},
 430        {0x380b, 0x20},
 431        {0x380c, 0x04},
 432        {0x380d, 0x62},
 433        {0x380e, 0x0c},
 434        {0x380f, 0x8e},
 435        {0x3811, 0x04},
 436        {0x3813, 0x05},
 437        {0x3814, 0x03},
 438        {0x3815, 0x01},
 439        {0x3816, 0x03},
 440        {0x3817, 0x01},
 441        {0x3820, 0xab},
 442        {0x3821, 0x00},
 443        {0x3822, 0xc2},
 444        {0x3823, 0x18},
 445        {0x3826, 0x04},
 446        {0x3827, 0x90},
 447        {0x3829, 0x07},
 448        {0x3832, 0x00},
 449        {0x3c80, 0x00},
 450        {0x3c87, 0x01},
 451        {0x3c8c, 0x19},
 452        {0x3c8d, 0x1c},
 453        {0x3c90, 0x00},
 454        {0x3c91, 0x00},
 455        {0x3c92, 0x00},
 456        {0x3c93, 0x00},
 457        {0x3c94, 0x40},
 458        {0x3c95, 0x54},
 459        {0x3c96, 0x34},
 460        {0x3c97, 0x04},
 461        {0x3c98, 0x00},
 462        {0x3d8c, 0x73},
 463        {0x3d8d, 0xc0},
 464        {0x3f00, 0x0b},
 465        {0x3f03, 0x00},
 466        {0x4001, 0xe0},
 467        {0x4008, 0x00},
 468        {0x4009, 0x0d},
 469        {0x4011, 0xf0},
 470        {0x4017, 0x08},
 471        {0x4050, 0x04},
 472        {0x4051, 0x0b},
 473        {0x4052, 0x00},
 474        {0x4053, 0x80},
 475        {0x4054, 0x00},
 476        {0x4055, 0x80},
 477        {0x4056, 0x00},
 478        {0x4057, 0x80},
 479        {0x4058, 0x00},
 480        {0x4059, 0x80},
 481        {0x405e, 0x20},
 482        {0x4500, 0x07},
 483        {0x4503, 0x00},
 484        {0x450a, 0x04},
 485        {0x4809, 0x04},
 486        {0x480c, 0x12},
 487        {0x481f, 0x30},
 488        {0x4833, 0x10},
 489        {0x4837, 0x1c},
 490        {0x4902, 0x01},
 491        {0x4d00, 0x03},
 492        {0x4d01, 0xc9},
 493        {0x4d02, 0xbc},
 494        {0x4d03, 0xd7},
 495        {0x4d04, 0xf0},
 496        {0x4d05, 0xa2},
 497        {0x5000, 0xfd},
 498        {0x5001, 0x01},
 499        {0x5040, 0x39},
 500        {0x5041, 0x10},
 501        {0x5042, 0x10},
 502        {0x5043, 0x84},
 503        {0x5044, 0x62},
 504        {0x5180, 0x00},
 505        {0x5181, 0x10},
 506        {0x5182, 0x02},
 507        {0x5183, 0x0f},
 508        {0x5200, 0x1b},
 509        {0x520b, 0x07},
 510        {0x520c, 0x0f},
 511        {0x5300, 0x04},
 512        {0x5301, 0x0c},
 513        {0x5302, 0x0c},
 514        {0x5303, 0x0f},
 515        {0x5304, 0x00},
 516        {0x5305, 0x70},
 517        {0x5306, 0x00},
 518        {0x5307, 0x80},
 519        {0x5308, 0x00},
 520        {0x5309, 0xa5},
 521        {0x530a, 0x00},
 522        {0x530b, 0xd3},
 523        {0x530c, 0x00},
 524        {0x530d, 0xf0},
 525        {0x530e, 0x01},
 526        {0x530f, 0x10},
 527        {0x5310, 0x01},
 528        {0x5311, 0x20},
 529        {0x5312, 0x01},
 530        {0x5313, 0x20},
 531        {0x5314, 0x01},
 532        {0x5315, 0x20},
 533        {0x5316, 0x08},
 534        {0x5317, 0x08},
 535        {0x5318, 0x10},
 536        {0x5319, 0x88},
 537        {0x531a, 0x88},
 538        {0x531b, 0xa9},
 539        {0x531c, 0xaa},
 540        {0x531d, 0x0a},
 541        {0x5405, 0x02},
 542        {0x5406, 0x67},
 543        {0x5407, 0x01},
 544        {0x5408, 0x4a},
 545};
 546
 547static const struct ov13858_reg mode_2112x1188_regs[] = {
 548        {0x3013, 0x32},
 549        {0x301b, 0xf0},
 550        {0x301f, 0xd0},
 551        {0x3106, 0x15},
 552        {0x3107, 0x23},
 553        {0x350a, 0x00},
 554        {0x350e, 0x00},
 555        {0x3510, 0x00},
 556        {0x3511, 0x02},
 557        {0x3512, 0x00},
 558        {0x3600, 0x2b},
 559        {0x3601, 0x52},
 560        {0x3602, 0x60},
 561        {0x3612, 0x05},
 562        {0x3613, 0xa4},
 563        {0x3620, 0x80},
 564        {0x3621, 0x10},
 565        {0x3622, 0x30},
 566        {0x3624, 0x1c},
 567        {0x3640, 0x10},
 568        {0x3641, 0x70},
 569        {0x3660, 0x04},
 570        {0x3661, 0x80},
 571        {0x3662, 0x10},
 572        {0x3664, 0x73},
 573        {0x3665, 0xa7},
 574        {0x366e, 0xff},
 575        {0x366f, 0xf4},
 576        {0x3674, 0x00},
 577        {0x3679, 0x0c},
 578        {0x367f, 0x01},
 579        {0x3680, 0x0c},
 580        {0x3681, 0x50},
 581        {0x3682, 0x50},
 582        {0x3683, 0xa9},
 583        {0x3684, 0xa9},
 584        {0x3709, 0x5f},
 585        {0x3714, 0x28},
 586        {0x371a, 0x3e},
 587        {0x3737, 0x08},
 588        {0x3738, 0xcc},
 589        {0x3739, 0x20},
 590        {0x373d, 0x26},
 591        {0x3764, 0x20},
 592        {0x3765, 0x20},
 593        {0x37a1, 0x36},
 594        {0x37a8, 0x3b},
 595        {0x37ab, 0x31},
 596        {0x37c2, 0x14},
 597        {0x37c3, 0xf1},
 598        {0x37c5, 0x00},
 599        {0x37d8, 0x03},
 600        {0x37d9, 0x0c},
 601        {0x37da, 0xc2},
 602        {0x37dc, 0x02},
 603        {0x37e0, 0x00},
 604        {0x37e1, 0x0a},
 605        {0x37e2, 0x14},
 606        {0x37e3, 0x08},
 607        {0x37e4, 0x38},
 608        {0x37e5, 0x03},
 609        {0x37e6, 0x08},
 610        {0x3800, 0x00},
 611        {0x3801, 0x00},
 612        {0x3802, 0x01},
 613        {0x3803, 0x84},
 614        {0x3804, 0x10},
 615        {0x3805, 0x9f},
 616        {0x3806, 0x0a},
 617        {0x3807, 0xd3},
 618        {0x3808, 0x08},
 619        {0x3809, 0x40},
 620        {0x380a, 0x04},
 621        {0x380b, 0xa4},
 622        {0x380c, 0x04},
 623        {0x380d, 0x62},
 624        {0x380e, 0x0c},
 625        {0x380f, 0x8e},
 626        {0x3811, 0x08},
 627        {0x3813, 0x03},
 628        {0x3814, 0x03},
 629        {0x3815, 0x01},
 630        {0x3816, 0x03},
 631        {0x3817, 0x01},
 632        {0x3820, 0xab},
 633        {0x3821, 0x00},
 634        {0x3822, 0xc2},
 635        {0x3823, 0x18},
 636        {0x3826, 0x04},
 637        {0x3827, 0x90},
 638        {0x3829, 0x07},
 639        {0x3832, 0x00},
 640        {0x3c80, 0x00},
 641        {0x3c87, 0x01},
 642        {0x3c8c, 0x19},
 643        {0x3c8d, 0x1c},
 644        {0x3c90, 0x00},
 645        {0x3c91, 0x00},
 646        {0x3c92, 0x00},
 647        {0x3c93, 0x00},
 648        {0x3c94, 0x40},
 649        {0x3c95, 0x54},
 650        {0x3c96, 0x34},
 651        {0x3c97, 0x04},
 652        {0x3c98, 0x00},
 653        {0x3d8c, 0x73},
 654        {0x3d8d, 0xc0},
 655        {0x3f00, 0x0b},
 656        {0x3f03, 0x00},
 657        {0x4001, 0xe0},
 658        {0x4008, 0x00},
 659        {0x4009, 0x0d},
 660        {0x4011, 0xf0},
 661        {0x4017, 0x08},
 662        {0x4050, 0x04},
 663        {0x4051, 0x0b},
 664        {0x4052, 0x00},
 665        {0x4053, 0x80},
 666        {0x4054, 0x00},
 667        {0x4055, 0x80},
 668        {0x4056, 0x00},
 669        {0x4057, 0x80},
 670        {0x4058, 0x00},
 671        {0x4059, 0x80},
 672        {0x405e, 0x20},
 673        {0x4500, 0x07},
 674        {0x4503, 0x00},
 675        {0x450a, 0x04},
 676        {0x4809, 0x04},
 677        {0x480c, 0x12},
 678        {0x481f, 0x30},
 679        {0x4833, 0x10},
 680        {0x4837, 0x1c},
 681        {0x4902, 0x01},
 682        {0x4d00, 0x03},
 683        {0x4d01, 0xc9},
 684        {0x4d02, 0xbc},
 685        {0x4d03, 0xd7},
 686        {0x4d04, 0xf0},
 687        {0x4d05, 0xa2},
 688        {0x5000, 0xfd},
 689        {0x5001, 0x01},
 690        {0x5040, 0x39},
 691        {0x5041, 0x10},
 692        {0x5042, 0x10},
 693        {0x5043, 0x84},
 694        {0x5044, 0x62},
 695        {0x5180, 0x00},
 696        {0x5181, 0x10},
 697        {0x5182, 0x02},
 698        {0x5183, 0x0f},
 699        {0x5200, 0x1b},
 700        {0x520b, 0x07},
 701        {0x520c, 0x0f},
 702        {0x5300, 0x04},
 703        {0x5301, 0x0c},
 704        {0x5302, 0x0c},
 705        {0x5303, 0x0f},
 706        {0x5304, 0x00},
 707        {0x5305, 0x70},
 708        {0x5306, 0x00},
 709        {0x5307, 0x80},
 710        {0x5308, 0x00},
 711        {0x5309, 0xa5},
 712        {0x530a, 0x00},
 713        {0x530b, 0xd3},
 714        {0x530c, 0x00},
 715        {0x530d, 0xf0},
 716        {0x530e, 0x01},
 717        {0x530f, 0x10},
 718        {0x5310, 0x01},
 719        {0x5311, 0x20},
 720        {0x5312, 0x01},
 721        {0x5313, 0x20},
 722        {0x5314, 0x01},
 723        {0x5315, 0x20},
 724        {0x5316, 0x08},
 725        {0x5317, 0x08},
 726        {0x5318, 0x10},
 727        {0x5319, 0x88},
 728        {0x531a, 0x88},
 729        {0x531b, 0xa9},
 730        {0x531c, 0xaa},
 731        {0x531d, 0x0a},
 732        {0x5405, 0x02},
 733        {0x5406, 0x67},
 734        {0x5407, 0x01},
 735        {0x5408, 0x4a},
 736};
 737
 738static const struct ov13858_reg mode_1056x784_regs[] = {
 739        {0x3013, 0x32},
 740        {0x301b, 0xf0},
 741        {0x301f, 0xd0},
 742        {0x3106, 0x15},
 743        {0x3107, 0x23},
 744        {0x350a, 0x00},
 745        {0x350e, 0x00},
 746        {0x3510, 0x00},
 747        {0x3511, 0x02},
 748        {0x3512, 0x00},
 749        {0x3600, 0x2b},
 750        {0x3601, 0x52},
 751        {0x3602, 0x60},
 752        {0x3612, 0x05},
 753        {0x3613, 0xa4},
 754        {0x3620, 0x80},
 755        {0x3621, 0x10},
 756        {0x3622, 0x30},
 757        {0x3624, 0x1c},
 758        {0x3640, 0x10},
 759        {0x3641, 0x70},
 760        {0x3660, 0x04},
 761        {0x3661, 0x80},
 762        {0x3662, 0x08},
 763        {0x3664, 0x73},
 764        {0x3665, 0xa7},
 765        {0x366e, 0xff},
 766        {0x366f, 0xf4},
 767        {0x3674, 0x00},
 768        {0x3679, 0x0c},
 769        {0x367f, 0x01},
 770        {0x3680, 0x0c},
 771        {0x3681, 0x50},
 772        {0x3682, 0x50},
 773        {0x3683, 0xa9},
 774        {0x3684, 0xa9},
 775        {0x3709, 0x5f},
 776        {0x3714, 0x30},
 777        {0x371a, 0x3e},
 778        {0x3737, 0x08},
 779        {0x3738, 0xcc},
 780        {0x3739, 0x20},
 781        {0x373d, 0x26},
 782        {0x3764, 0x20},
 783        {0x3765, 0x20},
 784        {0x37a1, 0x36},
 785        {0x37a8, 0x3b},
 786        {0x37ab, 0x31},
 787        {0x37c2, 0x2c},
 788        {0x37c3, 0xf1},
 789        {0x37c5, 0x00},
 790        {0x37d8, 0x03},
 791        {0x37d9, 0x06},
 792        {0x37da, 0xc2},
 793        {0x37dc, 0x02},
 794        {0x37e0, 0x00},
 795        {0x37e1, 0x0a},
 796        {0x37e2, 0x14},
 797        {0x37e3, 0x08},
 798        {0x37e4, 0x36},
 799        {0x37e5, 0x03},
 800        {0x37e6, 0x08},
 801        {0x3800, 0x00},
 802        {0x3801, 0x00},
 803        {0x3802, 0x00},
 804        {0x3803, 0x00},
 805        {0x3804, 0x10},
 806        {0x3805, 0x9f},
 807        {0x3806, 0x0c},
 808        {0x3807, 0x5f},
 809        {0x3808, 0x04},
 810        {0x3809, 0x20},
 811        {0x380a, 0x03},
 812        {0x380b, 0x10},
 813        {0x380c, 0x04},
 814        {0x380d, 0x62},
 815        {0x380e, 0x0c},
 816        {0x380f, 0x8e},
 817        {0x3811, 0x04},
 818        {0x3813, 0x05},
 819        {0x3814, 0x07},
 820        {0x3815, 0x01},
 821        {0x3816, 0x07},
 822        {0x3817, 0x01},
 823        {0x3820, 0xac},
 824        {0x3821, 0x00},
 825        {0x3822, 0xc2},
 826        {0x3823, 0x18},
 827        {0x3826, 0x04},
 828        {0x3827, 0x48},
 829        {0x3829, 0x03},
 830        {0x3832, 0x00},
 831        {0x3c80, 0x00},
 832        {0x3c87, 0x01},
 833        {0x3c8c, 0x19},
 834        {0x3c8d, 0x1c},
 835        {0x3c90, 0x00},
 836        {0x3c91, 0x00},
 837        {0x3c92, 0x00},
 838        {0x3c93, 0x00},
 839        {0x3c94, 0x40},
 840        {0x3c95, 0x54},
 841        {0x3c96, 0x34},
 842        {0x3c97, 0x04},
 843        {0x3c98, 0x00},
 844        {0x3d8c, 0x73},
 845        {0x3d8d, 0xc0},
 846        {0x3f00, 0x0b},
 847        {0x3f03, 0x00},
 848        {0x4001, 0xe0},
 849        {0x4008, 0x00},
 850        {0x4009, 0x05},
 851        {0x4011, 0xf0},
 852        {0x4017, 0x08},
 853        {0x4050, 0x02},
 854        {0x4051, 0x05},
 855        {0x4052, 0x00},
 856        {0x4053, 0x80},
 857        {0x4054, 0x00},
 858        {0x4055, 0x80},
 859        {0x4056, 0x00},
 860        {0x4057, 0x80},
 861        {0x4058, 0x00},
 862        {0x4059, 0x80},
 863        {0x405e, 0x20},
 864        {0x4500, 0x07},
 865        {0x4503, 0x00},
 866        {0x450a, 0x04},
 867        {0x4809, 0x04},
 868        {0x480c, 0x12},
 869        {0x481f, 0x30},
 870        {0x4833, 0x10},
 871        {0x4837, 0x1e},
 872        {0x4902, 0x02},
 873        {0x4d00, 0x03},
 874        {0x4d01, 0xc9},
 875        {0x4d02, 0xbc},
 876        {0x4d03, 0xd7},
 877        {0x4d04, 0xf0},
 878        {0x4d05, 0xa2},
 879        {0x5000, 0xfd},
 880        {0x5001, 0x01},
 881        {0x5040, 0x39},
 882        {0x5041, 0x10},
 883        {0x5042, 0x10},
 884        {0x5043, 0x84},
 885        {0x5044, 0x62},
 886        {0x5180, 0x00},
 887        {0x5181, 0x10},
 888        {0x5182, 0x02},
 889        {0x5183, 0x0f},
 890        {0x5200, 0x1b},
 891        {0x520b, 0x07},
 892        {0x520c, 0x0f},
 893        {0x5300, 0x04},
 894        {0x5301, 0x0c},
 895        {0x5302, 0x0c},
 896        {0x5303, 0x0f},
 897        {0x5304, 0x00},
 898        {0x5305, 0x70},
 899        {0x5306, 0x00},
 900        {0x5307, 0x80},
 901        {0x5308, 0x00},
 902        {0x5309, 0xa5},
 903        {0x530a, 0x00},
 904        {0x530b, 0xd3},
 905        {0x530c, 0x00},
 906        {0x530d, 0xf0},
 907        {0x530e, 0x01},
 908        {0x530f, 0x10},
 909        {0x5310, 0x01},
 910        {0x5311, 0x20},
 911        {0x5312, 0x01},
 912        {0x5313, 0x20},
 913        {0x5314, 0x01},
 914        {0x5315, 0x20},
 915        {0x5316, 0x08},
 916        {0x5317, 0x08},
 917        {0x5318, 0x10},
 918        {0x5319, 0x88},
 919        {0x531a, 0x88},
 920        {0x531b, 0xa9},
 921        {0x531c, 0xaa},
 922        {0x531d, 0x0a},
 923        {0x5405, 0x02},
 924        {0x5406, 0x67},
 925        {0x5407, 0x01},
 926        {0x5408, 0x4a},
 927};
 928
 929static const char * const ov13858_test_pattern_menu[] = {
 930        "Disabled",
 931        "Vertical Color Bar Type 1",
 932        "Vertical Color Bar Type 2",
 933        "Vertical Color Bar Type 3",
 934        "Vertical Color Bar Type 4"
 935};
 936
 937/* Configurations for supported link frequencies */
 938#define OV13858_NUM_OF_LINK_FREQS       2
 939#define OV13858_LINK_FREQ_540MHZ        540000000ULL
 940#define OV13858_LINK_FREQ_270MHZ        270000000ULL
 941#define OV13858_LINK_FREQ_INDEX_0       0
 942#define OV13858_LINK_FREQ_INDEX_1       1
 943
 944/*
 945 * pixel_rate = link_freq * data-rate * nr_of_lanes / bits_per_sample
 946 * data rate => double data rate; number of lanes => 4; bits per pixel => 10
 947 */
 948static u64 link_freq_to_pixel_rate(u64 f)
 949{
 950        f *= 2 * 4;
 951        do_div(f, 10);
 952
 953        return f;
 954}
 955
 956/* Menu items for LINK_FREQ V4L2 control */
 957static const s64 link_freq_menu_items[OV13858_NUM_OF_LINK_FREQS] = {
 958        OV13858_LINK_FREQ_540MHZ,
 959        OV13858_LINK_FREQ_270MHZ
 960};
 961
 962/* Link frequency configs */
 963static const struct ov13858_link_freq_config
 964                        link_freq_configs[OV13858_NUM_OF_LINK_FREQS] = {
 965        {
 966                .pixels_per_line = OV13858_PPL_540MHZ,
 967                .reg_list = {
 968                        .num_of_regs = ARRAY_SIZE(mipi_data_rate_1080mbps),
 969                        .regs = mipi_data_rate_1080mbps,
 970                }
 971        },
 972        {
 973                .pixels_per_line = OV13858_PPL_270MHZ,
 974                .reg_list = {
 975                        .num_of_regs = ARRAY_SIZE(mipi_data_rate_540mbps),
 976                        .regs = mipi_data_rate_540mbps,
 977                }
 978        }
 979};
 980
 981/* Mode configs */
 982static const struct ov13858_mode supported_modes[] = {
 983        {
 984                .width = 4224,
 985                .height = 3136,
 986                .vts_def = OV13858_VTS_30FPS,
 987                .vts_min = OV13858_VTS_30FPS,
 988                .reg_list = {
 989                        .num_of_regs = ARRAY_SIZE(mode_4224x3136_regs),
 990                        .regs = mode_4224x3136_regs,
 991                },
 992                .link_freq_index = OV13858_LINK_FREQ_INDEX_0,
 993        },
 994        {
 995                .width = 2112,
 996                .height = 1568,
 997                .vts_def = OV13858_VTS_30FPS,
 998                .vts_min = 1608,
 999                .reg_list = {
1000                        .num_of_regs = ARRAY_SIZE(mode_2112x1568_regs),
1001                        .regs = mode_2112x1568_regs,
1002                },
1003                .link_freq_index = OV13858_LINK_FREQ_INDEX_1,
1004        },
1005        {
1006                .width = 2112,
1007                .height = 1188,
1008                .vts_def = OV13858_VTS_30FPS,
1009                .vts_min = 1608,
1010                .reg_list = {
1011                        .num_of_regs = ARRAY_SIZE(mode_2112x1188_regs),
1012                        .regs = mode_2112x1188_regs,
1013                },
1014                .link_freq_index = OV13858_LINK_FREQ_INDEX_1,
1015        },
1016        {
1017                .width = 1056,
1018                .height = 784,
1019                .vts_def = OV13858_VTS_30FPS,
1020                .vts_min = 804,
1021                .reg_list = {
1022                        .num_of_regs = ARRAY_SIZE(mode_1056x784_regs),
1023                        .regs = mode_1056x784_regs,
1024                },
1025                .link_freq_index = OV13858_LINK_FREQ_INDEX_1,
1026        }
1027};
1028
1029struct ov13858 {
1030        struct v4l2_subdev sd;
1031        struct media_pad pad;
1032
1033        struct v4l2_ctrl_handler ctrl_handler;
1034        /* V4L2 Controls */
1035        struct v4l2_ctrl *link_freq;
1036        struct v4l2_ctrl *pixel_rate;
1037        struct v4l2_ctrl *vblank;
1038        struct v4l2_ctrl *hblank;
1039        struct v4l2_ctrl *exposure;
1040
1041        /* Current mode */
1042        const struct ov13858_mode *cur_mode;
1043
1044        /* Mutex for serialized access */
1045        struct mutex mutex;
1046
1047        /* Streaming on/off */
1048        bool streaming;
1049};
1050
1051#define to_ov13858(_sd) container_of(_sd, struct ov13858, sd)
1052
1053/* Read registers up to 4 at a time */
1054static int ov13858_read_reg(struct ov13858 *ov13858, u16 reg, u32 len,
1055                            u32 *val)
1056{
1057        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1058        struct i2c_msg msgs[2];
1059        u8 *data_be_p;
1060        int ret;
1061        __be32 data_be = 0;
1062        __be16 reg_addr_be = cpu_to_be16(reg);
1063
1064        if (len > 4)
1065                return -EINVAL;
1066
1067        data_be_p = (u8 *)&data_be;
1068        /* Write register address */
1069        msgs[0].addr = client->addr;
1070        msgs[0].flags = 0;
1071        msgs[0].len = 2;
1072        msgs[0].buf = (u8 *)&reg_addr_be;
1073
1074        /* Read data from register */
1075        msgs[1].addr = client->addr;
1076        msgs[1].flags = I2C_M_RD;
1077        msgs[1].len = len;
1078        msgs[1].buf = &data_be_p[4 - len];
1079
1080        ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
1081        if (ret != ARRAY_SIZE(msgs))
1082                return -EIO;
1083
1084        *val = be32_to_cpu(data_be);
1085
1086        return 0;
1087}
1088
1089/* Write registers up to 4 at a time */
1090static int ov13858_write_reg(struct ov13858 *ov13858, u16 reg, u32 len,
1091                             u32 __val)
1092{
1093        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1094        int buf_i, val_i;
1095        u8 buf[6], *val_p;
1096        __be32 val;
1097
1098        if (len > 4)
1099                return -EINVAL;
1100
1101        buf[0] = reg >> 8;
1102        buf[1] = reg & 0xff;
1103
1104        val = cpu_to_be32(__val);
1105        val_p = (u8 *)&val;
1106        buf_i = 2;
1107        val_i = 4 - len;
1108
1109        while (val_i < 4)
1110                buf[buf_i++] = val_p[val_i++];
1111
1112        if (i2c_master_send(client, buf, len + 2) != len + 2)
1113                return -EIO;
1114
1115        return 0;
1116}
1117
1118/* Write a list of registers */
1119static int ov13858_write_regs(struct ov13858 *ov13858,
1120                              const struct ov13858_reg *regs, u32 len)
1121{
1122        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1123        int ret;
1124        u32 i;
1125
1126        for (i = 0; i < len; i++) {
1127                ret = ov13858_write_reg(ov13858, regs[i].address, 1,
1128                                        regs[i].val);
1129                if (ret) {
1130                        dev_err_ratelimited(
1131                                &client->dev,
1132                                "Failed to write reg 0x%4.4x. error = %d\n",
1133                                regs[i].address, ret);
1134
1135                        return ret;
1136                }
1137        }
1138
1139        return 0;
1140}
1141
1142static int ov13858_write_reg_list(struct ov13858 *ov13858,
1143                                  const struct ov13858_reg_list *r_list)
1144{
1145        return ov13858_write_regs(ov13858, r_list->regs, r_list->num_of_regs);
1146}
1147
1148/* Open sub-device */
1149static int ov13858_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)
1150{
1151        struct ov13858 *ov13858 = to_ov13858(sd);
1152        struct v4l2_mbus_framefmt *try_fmt = v4l2_subdev_get_try_format(sd,
1153                                                                        fh->pad,
1154                                                                        0);
1155
1156        mutex_lock(&ov13858->mutex);
1157
1158        /* Initialize try_fmt */
1159        try_fmt->width = ov13858->cur_mode->width;
1160        try_fmt->height = ov13858->cur_mode->height;
1161        try_fmt->code = MEDIA_BUS_FMT_SGRBG10_1X10;
1162        try_fmt->field = V4L2_FIELD_NONE;
1163
1164        /* No crop or compose */
1165        mutex_unlock(&ov13858->mutex);
1166
1167        return 0;
1168}
1169
1170static int ov13858_update_digital_gain(struct ov13858 *ov13858, u32 d_gain)
1171{
1172        int ret;
1173
1174        ret = ov13858_write_reg(ov13858, OV13858_REG_B_MWB_GAIN,
1175                                OV13858_REG_VALUE_16BIT, d_gain);
1176        if (ret)
1177                return ret;
1178
1179        ret = ov13858_write_reg(ov13858, OV13858_REG_G_MWB_GAIN,
1180                                OV13858_REG_VALUE_16BIT, d_gain);
1181        if (ret)
1182                return ret;
1183
1184        ret = ov13858_write_reg(ov13858, OV13858_REG_R_MWB_GAIN,
1185                                OV13858_REG_VALUE_16BIT, d_gain);
1186
1187        return ret;
1188}
1189
1190static int ov13858_enable_test_pattern(struct ov13858 *ov13858, u32 pattern)
1191{
1192        int ret;
1193        u32 val;
1194
1195        ret = ov13858_read_reg(ov13858, OV13858_REG_TEST_PATTERN,
1196                               OV13858_REG_VALUE_08BIT, &val);
1197        if (ret)
1198                return ret;
1199
1200        if (pattern) {
1201                val &= OV13858_TEST_PATTERN_MASK;
1202                val |= (pattern - 1) | OV13858_TEST_PATTERN_ENABLE;
1203        } else {
1204                val &= ~OV13858_TEST_PATTERN_ENABLE;
1205        }
1206
1207        return ov13858_write_reg(ov13858, OV13858_REG_TEST_PATTERN,
1208                                 OV13858_REG_VALUE_08BIT, val);
1209}
1210
1211static int ov13858_set_ctrl(struct v4l2_ctrl *ctrl)
1212{
1213        struct ov13858 *ov13858 = container_of(ctrl->handler,
1214                                               struct ov13858, ctrl_handler);
1215        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1216        s64 max;
1217        int ret;
1218
1219        /* Propagate change of current control to all related controls */
1220        switch (ctrl->id) {
1221        case V4L2_CID_VBLANK:
1222                /* Update max exposure while meeting expected vblanking */
1223                max = ov13858->cur_mode->height + ctrl->val - 8;
1224                __v4l2_ctrl_modify_range(ov13858->exposure,
1225                                         ov13858->exposure->minimum,
1226                                         max, ov13858->exposure->step, max);
1227                break;
1228        }
1229
1230        /*
1231         * Applying V4L2 control value only happens
1232         * when power is up for streaming
1233         */
1234        if (!pm_runtime_get_if_in_use(&client->dev))
1235                return 0;
1236
1237        ret = 0;
1238        switch (ctrl->id) {
1239        case V4L2_CID_ANALOGUE_GAIN:
1240                ret = ov13858_write_reg(ov13858, OV13858_REG_ANALOG_GAIN,
1241                                        OV13858_REG_VALUE_16BIT, ctrl->val);
1242                break;
1243        case V4L2_CID_DIGITAL_GAIN:
1244                ret = ov13858_update_digital_gain(ov13858, ctrl->val);
1245                break;
1246        case V4L2_CID_EXPOSURE:
1247                ret = ov13858_write_reg(ov13858, OV13858_REG_EXPOSURE,
1248                                        OV13858_REG_VALUE_24BIT,
1249                                        ctrl->val << 4);
1250                break;
1251        case V4L2_CID_VBLANK:
1252                /* Update VTS that meets expected vertical blanking */
1253                ret = ov13858_write_reg(ov13858, OV13858_REG_VTS,
1254                                        OV13858_REG_VALUE_16BIT,
1255                                        ov13858->cur_mode->height
1256                                          + ctrl->val);
1257                break;
1258        case V4L2_CID_TEST_PATTERN:
1259                ret = ov13858_enable_test_pattern(ov13858, ctrl->val);
1260                break;
1261        default:
1262                dev_info(&client->dev,
1263                         "ctrl(id:0x%x,val:0x%x) is not handled\n",
1264                         ctrl->id, ctrl->val);
1265                break;
1266        }
1267
1268        pm_runtime_put(&client->dev);
1269
1270        return ret;
1271}
1272
1273static const struct v4l2_ctrl_ops ov13858_ctrl_ops = {
1274        .s_ctrl = ov13858_set_ctrl,
1275};
1276
1277static int ov13858_enum_mbus_code(struct v4l2_subdev *sd,
1278                                  struct v4l2_subdev_pad_config *cfg,
1279                                  struct v4l2_subdev_mbus_code_enum *code)
1280{
1281        /* Only one bayer order(GRBG) is supported */
1282        if (code->index > 0)
1283                return -EINVAL;
1284
1285        code->code = MEDIA_BUS_FMT_SGRBG10_1X10;
1286
1287        return 0;
1288}
1289
1290static int ov13858_enum_frame_size(struct v4l2_subdev *sd,
1291                                   struct v4l2_subdev_pad_config *cfg,
1292                                   struct v4l2_subdev_frame_size_enum *fse)
1293{
1294        if (fse->index >= ARRAY_SIZE(supported_modes))
1295                return -EINVAL;
1296
1297        if (fse->code != MEDIA_BUS_FMT_SGRBG10_1X10)
1298                return -EINVAL;
1299
1300        fse->min_width = supported_modes[fse->index].width;
1301        fse->max_width = fse->min_width;
1302        fse->min_height = supported_modes[fse->index].height;
1303        fse->max_height = fse->min_height;
1304
1305        return 0;
1306}
1307
1308static void ov13858_update_pad_format(const struct ov13858_mode *mode,
1309                                      struct v4l2_subdev_format *fmt)
1310{
1311        fmt->format.width = mode->width;
1312        fmt->format.height = mode->height;
1313        fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
1314        fmt->format.field = V4L2_FIELD_NONE;
1315}
1316
1317static int ov13858_do_get_pad_format(struct ov13858 *ov13858,
1318                                     struct v4l2_subdev_pad_config *cfg,
1319                                     struct v4l2_subdev_format *fmt)
1320{
1321        struct v4l2_mbus_framefmt *framefmt;
1322        struct v4l2_subdev *sd = &ov13858->sd;
1323
1324        if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1325                framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
1326                fmt->format = *framefmt;
1327        } else {
1328                ov13858_update_pad_format(ov13858->cur_mode, fmt);
1329        }
1330
1331        return 0;
1332}
1333
1334static int ov13858_get_pad_format(struct v4l2_subdev *sd,
1335                                  struct v4l2_subdev_pad_config *cfg,
1336                                  struct v4l2_subdev_format *fmt)
1337{
1338        struct ov13858 *ov13858 = to_ov13858(sd);
1339        int ret;
1340
1341        mutex_lock(&ov13858->mutex);
1342        ret = ov13858_do_get_pad_format(ov13858, cfg, fmt);
1343        mutex_unlock(&ov13858->mutex);
1344
1345        return ret;
1346}
1347
1348static int
1349ov13858_set_pad_format(struct v4l2_subdev *sd,
1350                       struct v4l2_subdev_pad_config *cfg,
1351                       struct v4l2_subdev_format *fmt)
1352{
1353        struct ov13858 *ov13858 = to_ov13858(sd);
1354        const struct ov13858_mode *mode;
1355        struct v4l2_mbus_framefmt *framefmt;
1356        s32 vblank_def;
1357        s32 vblank_min;
1358        s64 h_blank;
1359        s64 pixel_rate;
1360        s64 link_freq;
1361
1362        mutex_lock(&ov13858->mutex);
1363
1364        /* Only one raw bayer(GRBG) order is supported */
1365        if (fmt->format.code != MEDIA_BUS_FMT_SGRBG10_1X10)
1366                fmt->format.code = MEDIA_BUS_FMT_SGRBG10_1X10;
1367
1368        mode = v4l2_find_nearest_size(supported_modes,
1369                                      ARRAY_SIZE(supported_modes),
1370                                      width, height,
1371                                      fmt->format.width, fmt->format.height);
1372        ov13858_update_pad_format(mode, fmt);
1373        if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {
1374                framefmt = v4l2_subdev_get_try_format(sd, cfg, fmt->pad);
1375                *framefmt = fmt->format;
1376        } else {
1377                ov13858->cur_mode = mode;
1378                __v4l2_ctrl_s_ctrl(ov13858->link_freq, mode->link_freq_index);
1379                link_freq = link_freq_menu_items[mode->link_freq_index];
1380                pixel_rate = link_freq_to_pixel_rate(link_freq);
1381                __v4l2_ctrl_s_ctrl_int64(ov13858->pixel_rate, pixel_rate);
1382
1383                /* Update limits and set FPS to default */
1384                vblank_def = ov13858->cur_mode->vts_def -
1385                             ov13858->cur_mode->height;
1386                vblank_min = ov13858->cur_mode->vts_min -
1387                             ov13858->cur_mode->height;
1388                __v4l2_ctrl_modify_range(
1389                        ov13858->vblank, vblank_min,
1390                        OV13858_VTS_MAX - ov13858->cur_mode->height, 1,
1391                        vblank_def);
1392                __v4l2_ctrl_s_ctrl(ov13858->vblank, vblank_def);
1393                h_blank =
1394                        link_freq_configs[mode->link_freq_index].pixels_per_line
1395                         - ov13858->cur_mode->width;
1396                __v4l2_ctrl_modify_range(ov13858->hblank, h_blank,
1397                                         h_blank, 1, h_blank);
1398        }
1399
1400        mutex_unlock(&ov13858->mutex);
1401
1402        return 0;
1403}
1404
1405static int ov13858_get_skip_frames(struct v4l2_subdev *sd, u32 *frames)
1406{
1407        *frames = OV13858_NUM_OF_SKIP_FRAMES;
1408
1409        return 0;
1410}
1411
1412/* Start streaming */
1413static int ov13858_start_streaming(struct ov13858 *ov13858)
1414{
1415        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1416        const struct ov13858_reg_list *reg_list;
1417        int ret, link_freq_index;
1418
1419        /* Get out of from software reset */
1420        ret = ov13858_write_reg(ov13858, OV13858_REG_SOFTWARE_RST,
1421                                OV13858_REG_VALUE_08BIT, OV13858_SOFTWARE_RST);
1422        if (ret) {
1423                dev_err(&client->dev, "%s failed to set powerup registers\n",
1424                        __func__);
1425                return ret;
1426        }
1427
1428        /* Setup PLL */
1429        link_freq_index = ov13858->cur_mode->link_freq_index;
1430        reg_list = &link_freq_configs[link_freq_index].reg_list;
1431        ret = ov13858_write_reg_list(ov13858, reg_list);
1432        if (ret) {
1433                dev_err(&client->dev, "%s failed to set plls\n", __func__);
1434                return ret;
1435        }
1436
1437        /* Apply default values of current mode */
1438        reg_list = &ov13858->cur_mode->reg_list;
1439        ret = ov13858_write_reg_list(ov13858, reg_list);
1440        if (ret) {
1441                dev_err(&client->dev, "%s failed to set mode\n", __func__);
1442                return ret;
1443        }
1444
1445        /* Apply customized values from user */
1446        ret =  __v4l2_ctrl_handler_setup(ov13858->sd.ctrl_handler);
1447        if (ret)
1448                return ret;
1449
1450        return ov13858_write_reg(ov13858, OV13858_REG_MODE_SELECT,
1451                                 OV13858_REG_VALUE_08BIT,
1452                                 OV13858_MODE_STREAMING);
1453}
1454
1455/* Stop streaming */
1456static int ov13858_stop_streaming(struct ov13858 *ov13858)
1457{
1458        return ov13858_write_reg(ov13858, OV13858_REG_MODE_SELECT,
1459                                 OV13858_REG_VALUE_08BIT, OV13858_MODE_STANDBY);
1460}
1461
1462static int ov13858_set_stream(struct v4l2_subdev *sd, int enable)
1463{
1464        struct ov13858 *ov13858 = to_ov13858(sd);
1465        struct i2c_client *client = v4l2_get_subdevdata(sd);
1466        int ret = 0;
1467
1468        mutex_lock(&ov13858->mutex);
1469        if (ov13858->streaming == enable) {
1470                mutex_unlock(&ov13858->mutex);
1471                return 0;
1472        }
1473
1474        if (enable) {
1475                ret = pm_runtime_get_sync(&client->dev);
1476                if (ret < 0) {
1477                        pm_runtime_put_noidle(&client->dev);
1478                        goto err_unlock;
1479                }
1480
1481                /*
1482                 * Apply default & customized values
1483                 * and then start streaming.
1484                 */
1485                ret = ov13858_start_streaming(ov13858);
1486                if (ret)
1487                        goto err_rpm_put;
1488        } else {
1489                ov13858_stop_streaming(ov13858);
1490                pm_runtime_put(&client->dev);
1491        }
1492
1493        ov13858->streaming = enable;
1494        mutex_unlock(&ov13858->mutex);
1495
1496        return ret;
1497
1498err_rpm_put:
1499        pm_runtime_put(&client->dev);
1500err_unlock:
1501        mutex_unlock(&ov13858->mutex);
1502
1503        return ret;
1504}
1505
1506static int __maybe_unused ov13858_suspend(struct device *dev)
1507{
1508        struct i2c_client *client = to_i2c_client(dev);
1509        struct v4l2_subdev *sd = i2c_get_clientdata(client);
1510        struct ov13858 *ov13858 = to_ov13858(sd);
1511
1512        if (ov13858->streaming)
1513                ov13858_stop_streaming(ov13858);
1514
1515        return 0;
1516}
1517
1518static int __maybe_unused ov13858_resume(struct device *dev)
1519{
1520        struct i2c_client *client = to_i2c_client(dev);
1521        struct v4l2_subdev *sd = i2c_get_clientdata(client);
1522        struct ov13858 *ov13858 = to_ov13858(sd);
1523        int ret;
1524
1525        if (ov13858->streaming) {
1526                ret = ov13858_start_streaming(ov13858);
1527                if (ret)
1528                        goto error;
1529        }
1530
1531        return 0;
1532
1533error:
1534        ov13858_stop_streaming(ov13858);
1535        ov13858->streaming = false;
1536        return ret;
1537}
1538
1539/* Verify chip ID */
1540static int ov13858_identify_module(struct ov13858 *ov13858)
1541{
1542        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1543        int ret;
1544        u32 val;
1545
1546        ret = ov13858_read_reg(ov13858, OV13858_REG_CHIP_ID,
1547                               OV13858_REG_VALUE_24BIT, &val);
1548        if (ret)
1549                return ret;
1550
1551        if (val != OV13858_CHIP_ID) {
1552                dev_err(&client->dev, "chip id mismatch: %x!=%x\n",
1553                        OV13858_CHIP_ID, val);
1554                return -EIO;
1555        }
1556
1557        return 0;
1558}
1559
1560static const struct v4l2_subdev_video_ops ov13858_video_ops = {
1561        .s_stream = ov13858_set_stream,
1562};
1563
1564static const struct v4l2_subdev_pad_ops ov13858_pad_ops = {
1565        .enum_mbus_code = ov13858_enum_mbus_code,
1566        .get_fmt = ov13858_get_pad_format,
1567        .set_fmt = ov13858_set_pad_format,
1568        .enum_frame_size = ov13858_enum_frame_size,
1569};
1570
1571static const struct v4l2_subdev_sensor_ops ov13858_sensor_ops = {
1572        .g_skip_frames = ov13858_get_skip_frames,
1573};
1574
1575static const struct v4l2_subdev_ops ov13858_subdev_ops = {
1576        .video = &ov13858_video_ops,
1577        .pad = &ov13858_pad_ops,
1578        .sensor = &ov13858_sensor_ops,
1579};
1580
1581static const struct media_entity_operations ov13858_subdev_entity_ops = {
1582        .link_validate = v4l2_subdev_link_validate,
1583};
1584
1585static const struct v4l2_subdev_internal_ops ov13858_internal_ops = {
1586        .open = ov13858_open,
1587};
1588
1589/* Initialize control handlers */
1590static int ov13858_init_controls(struct ov13858 *ov13858)
1591{
1592        struct i2c_client *client = v4l2_get_subdevdata(&ov13858->sd);
1593        struct v4l2_fwnode_device_properties props;
1594        struct v4l2_ctrl_handler *ctrl_hdlr;
1595        s64 exposure_max;
1596        s64 vblank_def;
1597        s64 vblank_min;
1598        s64 hblank;
1599        s64 pixel_rate_min;
1600        s64 pixel_rate_max;
1601        const struct ov13858_mode *mode;
1602        int ret;
1603
1604        ctrl_hdlr = &ov13858->ctrl_handler;
1605        ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10);
1606        if (ret)
1607                return ret;
1608
1609        mutex_init(&ov13858->mutex);
1610        ctrl_hdlr->lock = &ov13858->mutex;
1611        ov13858->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr,
1612                                &ov13858_ctrl_ops,
1613                                V4L2_CID_LINK_FREQ,
1614                                OV13858_NUM_OF_LINK_FREQS - 1,
1615                                0,
1616                                link_freq_menu_items);
1617        if (ov13858->link_freq)
1618                ov13858->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1619
1620        pixel_rate_max = link_freq_to_pixel_rate(link_freq_menu_items[0]);
1621        pixel_rate_min = link_freq_to_pixel_rate(link_freq_menu_items[1]);
1622        /* By default, PIXEL_RATE is read only */
1623        ov13858->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov13858_ctrl_ops,
1624                                                V4L2_CID_PIXEL_RATE,
1625                                                pixel_rate_min, pixel_rate_max,
1626                                                1, pixel_rate_max);
1627
1628        mode = ov13858->cur_mode;
1629        vblank_def = mode->vts_def - mode->height;
1630        vblank_min = mode->vts_min - mode->height;
1631        ov13858->vblank = v4l2_ctrl_new_std(
1632                                ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_VBLANK,
1633                                vblank_min, OV13858_VTS_MAX - mode->height, 1,
1634                                vblank_def);
1635
1636        hblank = link_freq_configs[mode->link_freq_index].pixels_per_line -
1637                 mode->width;
1638        ov13858->hblank = v4l2_ctrl_new_std(
1639                                ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_HBLANK,
1640                                hblank, hblank, 1, hblank);
1641        if (ov13858->hblank)
1642                ov13858->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;
1643
1644        exposure_max = mode->vts_def - 8;
1645        ov13858->exposure = v4l2_ctrl_new_std(
1646                                ctrl_hdlr, &ov13858_ctrl_ops,
1647                                V4L2_CID_EXPOSURE, OV13858_EXPOSURE_MIN,
1648                                exposure_max, OV13858_EXPOSURE_STEP,
1649                                OV13858_EXPOSURE_DEFAULT);
1650
1651        v4l2_ctrl_new_std(ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,
1652                          OV13858_ANA_GAIN_MIN, OV13858_ANA_GAIN_MAX,
1653                          OV13858_ANA_GAIN_STEP, OV13858_ANA_GAIN_DEFAULT);
1654
1655        /* Digital gain */
1656        v4l2_ctrl_new_std(ctrl_hdlr, &ov13858_ctrl_ops, V4L2_CID_DIGITAL_GAIN,
1657                          OV13858_DGTL_GAIN_MIN, OV13858_DGTL_GAIN_MAX,
1658                          OV13858_DGTL_GAIN_STEP, OV13858_DGTL_GAIN_DEFAULT);
1659
1660        v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov13858_ctrl_ops,
1661                                     V4L2_CID_TEST_PATTERN,
1662                                     ARRAY_SIZE(ov13858_test_pattern_menu) - 1,
1663                                     0, 0, ov13858_test_pattern_menu);
1664        if (ctrl_hdlr->error) {
1665                ret = ctrl_hdlr->error;
1666                dev_err(&client->dev, "%s control init failed (%d)\n",
1667                        __func__, ret);
1668                goto error;
1669        }
1670
1671        ret = v4l2_fwnode_device_parse(&client->dev, &props);
1672        if (ret)
1673                goto error;
1674
1675        ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &ov13858_ctrl_ops,
1676                                              &props);
1677        if (ret)
1678                goto error;
1679
1680        ov13858->sd.ctrl_handler = ctrl_hdlr;
1681
1682        return 0;
1683
1684error:
1685        v4l2_ctrl_handler_free(ctrl_hdlr);
1686        mutex_destroy(&ov13858->mutex);
1687
1688        return ret;
1689}
1690
1691static void ov13858_free_controls(struct ov13858 *ov13858)
1692{
1693        v4l2_ctrl_handler_free(ov13858->sd.ctrl_handler);
1694        mutex_destroy(&ov13858->mutex);
1695}
1696
1697static int ov13858_probe(struct i2c_client *client,
1698                         const struct i2c_device_id *devid)
1699{
1700        struct ov13858 *ov13858;
1701        int ret;
1702        u32 val = 0;
1703
1704        device_property_read_u32(&client->dev, "clock-frequency", &val);
1705        if (val != 19200000)
1706                return -EINVAL;
1707
1708        ov13858 = devm_kzalloc(&client->dev, sizeof(*ov13858), GFP_KERNEL);
1709        if (!ov13858)
1710                return -ENOMEM;
1711
1712        /* Initialize subdev */
1713        v4l2_i2c_subdev_init(&ov13858->sd, client, &ov13858_subdev_ops);
1714
1715        /* Check module identity */
1716        ret = ov13858_identify_module(ov13858);
1717        if (ret) {
1718                dev_err(&client->dev, "failed to find sensor: %d\n", ret);
1719                return ret;
1720        }
1721
1722        /* Set default mode to max resolution */
1723        ov13858->cur_mode = &supported_modes[0];
1724
1725        ret = ov13858_init_controls(ov13858);
1726        if (ret)
1727                return ret;
1728
1729        /* Initialize subdev */
1730        ov13858->sd.internal_ops = &ov13858_internal_ops;
1731        ov13858->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
1732        ov13858->sd.entity.ops = &ov13858_subdev_entity_ops;
1733        ov13858->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;
1734
1735        /* Initialize source pad */
1736        ov13858->pad.flags = MEDIA_PAD_FL_SOURCE;
1737        ret = media_entity_pads_init(&ov13858->sd.entity, 1, &ov13858->pad);
1738        if (ret) {
1739                dev_err(&client->dev, "%s failed:%d\n", __func__, ret);
1740                goto error_handler_free;
1741        }
1742
1743        ret = v4l2_async_register_subdev_sensor_common(&ov13858->sd);
1744        if (ret < 0)
1745                goto error_media_entity;
1746
1747        /*
1748         * Device is already turned on by i2c-core with ACPI domain PM.
1749         * Enable runtime PM and turn off the device.
1750         */
1751        pm_runtime_set_active(&client->dev);
1752        pm_runtime_enable(&client->dev);
1753        pm_runtime_idle(&client->dev);
1754
1755        return 0;
1756
1757error_media_entity:
1758        media_entity_cleanup(&ov13858->sd.entity);
1759
1760error_handler_free:
1761        ov13858_free_controls(ov13858);
1762        dev_err(&client->dev, "%s failed:%d\n", __func__, ret);
1763
1764        return ret;
1765}
1766
1767static int ov13858_remove(struct i2c_client *client)
1768{
1769        struct v4l2_subdev *sd = i2c_get_clientdata(client);
1770        struct ov13858 *ov13858 = to_ov13858(sd);
1771
1772        v4l2_async_unregister_subdev(sd);
1773        media_entity_cleanup(&sd->entity);
1774        ov13858_free_controls(ov13858);
1775
1776        pm_runtime_disable(&client->dev);
1777
1778        return 0;
1779}
1780
1781static const struct i2c_device_id ov13858_id_table[] = {
1782        {"ov13858", 0},
1783        {},
1784};
1785
1786MODULE_DEVICE_TABLE(i2c, ov13858_id_table);
1787
1788static const struct dev_pm_ops ov13858_pm_ops = {
1789        SET_SYSTEM_SLEEP_PM_OPS(ov13858_suspend, ov13858_resume)
1790};
1791
1792#ifdef CONFIG_ACPI
1793static const struct acpi_device_id ov13858_acpi_ids[] = {
1794        {"OVTID858"},
1795        { /* sentinel */ }
1796};
1797
1798MODULE_DEVICE_TABLE(acpi, ov13858_acpi_ids);
1799#endif
1800
1801static struct i2c_driver ov13858_i2c_driver = {
1802        .driver = {
1803                .name = "ov13858",
1804                .pm = &ov13858_pm_ops,
1805                .acpi_match_table = ACPI_PTR(ov13858_acpi_ids),
1806        },
1807        .probe = ov13858_probe,
1808        .remove = ov13858_remove,
1809        .id_table = ov13858_id_table,
1810};
1811
1812module_i2c_driver(ov13858_i2c_driver);
1813
1814MODULE_AUTHOR("Kan, Chris <chris.kan@intel.com>");
1815MODULE_AUTHOR("Rapolu, Chiranjeevi <chiranjeevi.rapolu@intel.com>");
1816MODULE_AUTHOR("Yang, Hyungwoo <hyungwoo.yang@intel.com>");
1817MODULE_DESCRIPTION("Omnivision ov13858 sensor driver");
1818MODULE_LICENSE("GPL v2");
1819