1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (C) 2023 Jacopo Mondi <jacopo.mondi@ideasonboard.com> 4 * Copyright (C) 2022 Nicholas Roth <nicholas@rothemail.net> 5 * Copyright (C) 2017 Fuzhou Rockchip Electronics Co., Ltd. 6 */ 7 8 #include <asm/unaligned.h> 9 10 #include <linux/clk.h> 11 #include <linux/delay.h> 12 #include <linux/device.h> 13 #include <linux/gpio/consumer.h> 14 #include <linux/i2c.h> 15 #include <linux/module.h> 16 #include <linux/of.h> 17 #include <linux/pm_runtime.h> 18 #include <linux/property.h> 19 #include <linux/regulator/consumer.h> 20 #include <linux/slab.h> 21 22 #include <media/media-entity.h> 23 #include <media/v4l2-async.h> 24 #include <media/v4l2-common.h> 25 #include <media/v4l2-ctrls.h> 26 #include <media/v4l2-device.h> 27 #include <media/v4l2-event.h> 28 #include <media/v4l2-fwnode.h> 29 #include <media/v4l2-mediabus.h> 30 #include <media/v4l2-subdev.h> 31 32 #define OV8858_LINK_FREQ 360000000U 33 #define OV8858_XVCLK_FREQ 24000000 34 35 #define OV8858_REG_SIZE_SHIFT 16 36 #define OV8858_REG_ADDR_MASK 0xffff 37 #define OV8858_REG_8BIT(n) ((1U << OV8858_REG_SIZE_SHIFT) | (n)) 38 #define OV8858_REG_16BIT(n) ((2U << OV8858_REG_SIZE_SHIFT) | (n)) 39 #define OV8858_REG_24BIT(n) ((3U << OV8858_REG_SIZE_SHIFT) | (n)) 40 41 #define OV8858_REG_SC_CTRL0100 OV8858_REG_8BIT(0x0100) 42 #define OV8858_MODE_SW_STANDBY 0x0 43 #define OV8858_MODE_STREAMING 0x1 44 45 #define OV8858_REG_CHIP_ID OV8858_REG_24BIT(0x300a) 46 #define OV8858_CHIP_ID 0x008858 47 48 #define OV8858_REG_SUB_ID OV8858_REG_8BIT(0x302a) 49 #define OV8858_R1A 0xb0 50 #define OV8858_R2A 0xb2 51 52 #define OV8858_REG_LONG_EXPO OV8858_REG_24BIT(0x3500) 53 #define OV8858_EXPOSURE_MIN 4 54 #define OV8858_EXPOSURE_STEP 1 55 #define OV8858_EXPOSURE_MARGIN 4 56 57 #define OV8858_REG_LONG_GAIN OV8858_REG_16BIT(0x3508) 58 #define OV8858_LONG_GAIN_MIN 0x0 59 #define OV8858_LONG_GAIN_MAX 0x7ff 60 #define OV8858_LONG_GAIN_STEP 1 61 #define OV8858_LONG_GAIN_DEFAULT 0x80 62 63 #define OV8858_REG_LONG_DIGIGAIN OV8858_REG_16BIT(0x350a) 64 #define OV8858_LONG_DIGIGAIN_H_MASK 0x3fc0 65 #define OV8858_LONG_DIGIGAIN_L_MASK 0x3f 66 #define OV8858_LONG_DIGIGAIN_H_SHIFT 2 67 #define OV8858_LONG_DIGIGAIN_MIN 0x0 68 #define OV8858_LONG_DIGIGAIN_MAX 0x3fff 69 #define OV8858_LONG_DIGIGAIN_STEP 1 70 #define OV8858_LONG_DIGIGAIN_DEFAULT 0x200 71 72 #define OV8858_REG_VTS OV8858_REG_16BIT(0x380e) 73 #define OV8858_VTS_MAX 0x7fff 74 75 #define OV8858_REG_TEST_PATTERN OV8858_REG_8BIT(0x5e00) 76 #define OV8858_TEST_PATTERN_ENABLE 0x80 77 #define OV8858_TEST_PATTERN_DISABLE 0x0 78 79 #define REG_NULL 0xffff 80 81 static const char * const ov8858_supply_names[] = { 82 "avdd", /* Analog power */ 83 "dovdd", /* Digital I/O power */ 84 "dvdd", /* Digital core power */ 85 }; 86 87 struct regval { 88 u16 addr; 89 u8 val; 90 }; 91 92 struct regval_modes { 93 const struct regval *mode_2lanes; 94 const struct regval *mode_4lanes; 95 }; 96 97 struct ov8858_mode { 98 u32 width; 99 u32 height; 100 u32 hts_def; 101 u32 vts_def; 102 u32 exp_def; 103 const struct regval_modes reg_modes; 104 }; 105 106 struct ov8858 { 107 struct clk *xvclk; 108 struct gpio_desc *reset_gpio; 109 struct gpio_desc *pwdn_gpio; 110 struct regulator_bulk_data supplies[ARRAY_SIZE(ov8858_supply_names)]; 111 112 struct v4l2_subdev subdev; 113 struct media_pad pad; 114 115 struct v4l2_ctrl_handler ctrl_handler; 116 struct v4l2_ctrl *exposure; 117 struct v4l2_ctrl *hblank; 118 struct v4l2_ctrl *vblank; 119 120 const struct regval *global_regs; 121 122 unsigned int num_lanes; 123 }; 124 125 static inline struct ov8858 *sd_to_ov8858(struct v4l2_subdev *sd) 126 { 127 return container_of(sd, struct ov8858, subdev); 128 } 129 130 static const struct regval ov8858_global_regs_r1a[] = { 131 {0x0100, 0x00}, 132 {0x0100, 0x00}, 133 {0x0100, 0x00}, 134 {0x0100, 0x00}, 135 {0x0302, 0x1e}, 136 {0x0303, 0x00}, 137 {0x0304, 0x03}, 138 {0x030e, 0x00}, 139 {0x030f, 0x09}, 140 {0x0312, 0x01}, 141 {0x031e, 0x0c}, 142 {0x3600, 0x00}, 143 {0x3601, 0x00}, 144 {0x3602, 0x00}, 145 {0x3603, 0x00}, 146 {0x3604, 0x22}, 147 {0x3605, 0x30}, 148 {0x3606, 0x00}, 149 {0x3607, 0x20}, 150 {0x3608, 0x11}, 151 {0x3609, 0x28}, 152 {0x360a, 0x00}, 153 {0x360b, 0x06}, 154 {0x360c, 0xdc}, 155 {0x360d, 0x40}, 156 {0x360e, 0x0c}, 157 {0x360f, 0x20}, 158 {0x3610, 0x07}, 159 {0x3611, 0x20}, 160 {0x3612, 0x88}, 161 {0x3613, 0x80}, 162 {0x3614, 0x58}, 163 {0x3615, 0x00}, 164 {0x3616, 0x4a}, 165 {0x3617, 0xb0}, 166 {0x3618, 0x56}, 167 {0x3619, 0x70}, 168 {0x361a, 0x99}, 169 {0x361b, 0x00}, 170 {0x361c, 0x07}, 171 {0x361d, 0x00}, 172 {0x361e, 0x00}, 173 {0x361f, 0x00}, 174 {0x3638, 0xff}, 175 {0x3633, 0x0c}, 176 {0x3634, 0x0c}, 177 {0x3635, 0x0c}, 178 {0x3636, 0x0c}, 179 {0x3645, 0x13}, 180 {0x3646, 0x83}, 181 {0x364a, 0x07}, 182 {0x3015, 0x01}, 183 {0x3018, 0x32}, 184 {0x3020, 0x93}, 185 {0x3022, 0x01}, 186 {0x3031, 0x0a}, 187 {0x3034, 0x00}, 188 {0x3106, 0x01}, 189 {0x3305, 0xf1}, 190 {0x3308, 0x00}, 191 {0x3309, 0x28}, 192 {0x330a, 0x00}, 193 {0x330b, 0x20}, 194 {0x330c, 0x00}, 195 {0x330d, 0x00}, 196 {0x330e, 0x00}, 197 {0x330f, 0x40}, 198 {0x3307, 0x04}, 199 {0x3500, 0x00}, 200 {0x3501, 0x4d}, 201 {0x3502, 0x40}, 202 {0x3503, 0x00}, 203 {0x3505, 0x80}, 204 {0x3508, 0x04}, 205 {0x3509, 0x00}, 206 {0x350c, 0x00}, 207 {0x350d, 0x80}, 208 {0x3510, 0x00}, 209 {0x3511, 0x02}, 210 {0x3512, 0x00}, 211 {0x3700, 0x18}, 212 {0x3701, 0x0c}, 213 {0x3702, 0x28}, 214 {0x3703, 0x19}, 215 {0x3704, 0x14}, 216 {0x3705, 0x00}, 217 {0x3706, 0x35}, 218 {0x3707, 0x04}, 219 {0x3708, 0x24}, 220 {0x3709, 0x33}, 221 {0x370a, 0x00}, 222 {0x370b, 0xb5}, 223 {0x370c, 0x04}, 224 {0x3718, 0x12}, 225 {0x3719, 0x31}, 226 {0x3712, 0x42}, 227 {0x3714, 0x24}, 228 {0x371e, 0x19}, 229 {0x371f, 0x40}, 230 {0x3720, 0x05}, 231 {0x3721, 0x05}, 232 {0x3724, 0x06}, 233 {0x3725, 0x01}, 234 {0x3726, 0x06}, 235 {0x3728, 0x05}, 236 {0x3729, 0x02}, 237 {0x372a, 0x03}, 238 {0x372b, 0x53}, 239 {0x372c, 0xa3}, 240 {0x372d, 0x53}, 241 {0x372e, 0x06}, 242 {0x372f, 0x10}, 243 {0x3730, 0x01}, 244 {0x3731, 0x06}, 245 {0x3732, 0x14}, 246 {0x3733, 0x10}, 247 {0x3734, 0x40}, 248 {0x3736, 0x20}, 249 {0x373a, 0x05}, 250 {0x373b, 0x06}, 251 {0x373c, 0x0a}, 252 {0x373e, 0x03}, 253 {0x3755, 0x10}, 254 {0x3758, 0x00}, 255 {0x3759, 0x4c}, 256 {0x375a, 0x06}, 257 {0x375b, 0x13}, 258 {0x375c, 0x20}, 259 {0x375d, 0x02}, 260 {0x375e, 0x00}, 261 {0x375f, 0x14}, 262 {0x3768, 0x22}, 263 {0x3769, 0x44}, 264 {0x376a, 0x44}, 265 {0x3761, 0x00}, 266 {0x3762, 0x00}, 267 {0x3763, 0x00}, 268 {0x3766, 0xff}, 269 {0x376b, 0x00}, 270 {0x3772, 0x23}, 271 {0x3773, 0x02}, 272 {0x3774, 0x16}, 273 {0x3775, 0x12}, 274 {0x3776, 0x04}, 275 {0x3777, 0x00}, 276 {0x3778, 0x1b}, 277 {0x37a0, 0x44}, 278 {0x37a1, 0x3d}, 279 {0x37a2, 0x3d}, 280 {0x37a3, 0x00}, 281 {0x37a4, 0x00}, 282 {0x37a5, 0x00}, 283 {0x37a6, 0x00}, 284 {0x37a7, 0x44}, 285 {0x37a8, 0x4c}, 286 {0x37a9, 0x4c}, 287 {0x3760, 0x00}, 288 {0x376f, 0x01}, 289 {0x37aa, 0x44}, 290 {0x37ab, 0x2e}, 291 {0x37ac, 0x2e}, 292 {0x37ad, 0x33}, 293 {0x37ae, 0x0d}, 294 {0x37af, 0x0d}, 295 {0x37b0, 0x00}, 296 {0x37b1, 0x00}, 297 {0x37b2, 0x00}, 298 {0x37b3, 0x42}, 299 {0x37b4, 0x42}, 300 {0x37b5, 0x33}, 301 {0x37b6, 0x00}, 302 {0x37b7, 0x00}, 303 {0x37b8, 0x00}, 304 {0x37b9, 0xff}, 305 {0x3800, 0x00}, 306 {0x3801, 0x0c}, 307 {0x3802, 0x00}, 308 {0x3803, 0x0c}, 309 {0x3804, 0x0c}, 310 {0x3805, 0xd3}, 311 {0x3806, 0x09}, 312 {0x3807, 0xa3}, 313 {0x3808, 0x06}, 314 {0x3809, 0x60}, 315 {0x380a, 0x04}, 316 {0x380b, 0xc8}, 317 {0x380c, 0x07}, 318 {0x380d, 0x88}, 319 {0x380e, 0x04}, 320 {0x380f, 0xdc}, 321 {0x3810, 0x00}, 322 {0x3811, 0x04}, 323 {0x3813, 0x02}, 324 {0x3814, 0x03}, 325 {0x3815, 0x01}, 326 {0x3820, 0x00}, 327 {0x3821, 0x67}, 328 {0x382a, 0x03}, 329 {0x382b, 0x01}, 330 {0x3830, 0x08}, 331 {0x3836, 0x02}, 332 {0x3837, 0x18}, 333 {0x3841, 0xff}, 334 {0x3846, 0x48}, 335 {0x3d85, 0x14}, 336 {0x3f08, 0x08}, 337 {0x3f0a, 0x80}, 338 {0x4000, 0xf1}, 339 {0x4001, 0x10}, 340 {0x4005, 0x10}, 341 {0x4002, 0x27}, 342 {0x4009, 0x81}, 343 {0x400b, 0x0c}, 344 {0x401b, 0x00}, 345 {0x401d, 0x00}, 346 {0x4020, 0x00}, 347 {0x4021, 0x04}, 348 {0x4022, 0x04}, 349 {0x4023, 0xb9}, 350 {0x4024, 0x05}, 351 {0x4025, 0x2a}, 352 {0x4026, 0x05}, 353 {0x4027, 0x2b}, 354 {0x4028, 0x00}, 355 {0x4029, 0x02}, 356 {0x402a, 0x04}, 357 {0x402b, 0x04}, 358 {0x402c, 0x02}, 359 {0x402d, 0x02}, 360 {0x402e, 0x08}, 361 {0x402f, 0x02}, 362 {0x401f, 0x00}, 363 {0x4034, 0x3f}, 364 {0x403d, 0x04}, 365 {0x4300, 0xff}, 366 {0x4301, 0x00}, 367 {0x4302, 0x0f}, 368 {0x4316, 0x00}, 369 {0x4500, 0x38}, 370 {0x4503, 0x18}, 371 {0x4600, 0x00}, 372 {0x4601, 0xcb}, 373 {0x481f, 0x32}, 374 {0x4837, 0x16}, 375 {0x4850, 0x10}, 376 {0x4851, 0x32}, 377 {0x4b00, 0x2a}, 378 {0x4b0d, 0x00}, 379 {0x4d00, 0x04}, 380 {0x4d01, 0x18}, 381 {0x4d02, 0xc3}, 382 {0x4d03, 0xff}, 383 {0x4d04, 0xff}, 384 {0x4d05, 0xff}, 385 {0x5000, 0x7e}, 386 {0x5001, 0x01}, 387 {0x5002, 0x08}, 388 {0x5003, 0x20}, 389 {0x5046, 0x12}, 390 {0x5901, 0x00}, 391 {0x5e00, 0x00}, 392 {0x5e01, 0x41}, 393 {0x382d, 0x7f}, 394 {0x4825, 0x3a}, 395 {0x4826, 0x40}, 396 {0x4808, 0x25}, 397 {REG_NULL, 0x00}, 398 }; 399 400 static const struct regval ov8858_global_regs_r2a_2lane[] = { 401 /* 402 * MIPI=720Mbps, SysClk=144Mhz,Dac Clock=360Mhz. 403 * v00_01_00 (05/29/2014) : initial setting 404 * AM19 : 3617 <- 0xC0 405 * AM20 : change FWC_6K_EN to be default 0x3618=0x5a 406 */ 407 {0x0103, 0x01}, /* software reset */ 408 {0x0100, 0x00}, /* software standby */ 409 {0x0302, 0x1e}, /* pll1_multi */ 410 {0x0303, 0x00}, /* pll1_divm */ 411 {0x0304, 0x03}, /* pll1_div_mipi */ 412 {0x030e, 0x02}, /* pll2_rdiv */ 413 {0x030f, 0x04}, /* pll2_divsp */ 414 {0x0312, 0x03}, /* pll2_pre_div0, pll2_r_divdac */ 415 {0x031e, 0x0c}, /* pll1_no_lat */ 416 {0x3600, 0x00}, 417 {0x3601, 0x00}, 418 {0x3602, 0x00}, 419 {0x3603, 0x00}, 420 {0x3604, 0x22}, 421 {0x3605, 0x20}, 422 {0x3606, 0x00}, 423 {0x3607, 0x20}, 424 {0x3608, 0x11}, 425 {0x3609, 0x28}, 426 {0x360a, 0x00}, 427 {0x360b, 0x05}, 428 {0x360c, 0xd4}, 429 {0x360d, 0x40}, 430 {0x360e, 0x0c}, 431 {0x360f, 0x20}, 432 {0x3610, 0x07}, 433 {0x3611, 0x20}, 434 {0x3612, 0x88}, 435 {0x3613, 0x80}, 436 {0x3614, 0x58}, 437 {0x3615, 0x00}, 438 {0x3616, 0x4a}, 439 {0x3617, 0x90}, 440 {0x3618, 0x5a}, 441 {0x3619, 0x70}, 442 {0x361a, 0x99}, 443 {0x361b, 0x0a}, 444 {0x361c, 0x07}, 445 {0x361d, 0x00}, 446 {0x361e, 0x00}, 447 {0x361f, 0x00}, 448 {0x3638, 0xff}, 449 {0x3633, 0x0f}, 450 {0x3634, 0x0f}, 451 {0x3635, 0x0f}, 452 {0x3636, 0x12}, 453 {0x3645, 0x13}, 454 {0x3646, 0x83}, 455 {0x364a, 0x07}, 456 {0x3015, 0x00}, 457 {0x3018, 0x32}, /* MIPI 2 lane */ 458 {0x3020, 0x93}, /* Clock switch output normal, pclk_div =/1 */ 459 {0x3022, 0x01}, /* pd_mipi enable when rst_sync */ 460 {0x3031, 0x0a}, /* MIPI 10-bit mode */ 461 {0x3034, 0x00}, 462 {0x3106, 0x01}, /* sclk_div, sclk_pre_div */ 463 {0x3305, 0xf1}, 464 {0x3308, 0x00}, 465 {0x3309, 0x28}, 466 {0x330a, 0x00}, 467 {0x330b, 0x20}, 468 {0x330c, 0x00}, 469 {0x330d, 0x00}, 470 {0x330e, 0x00}, 471 {0x330f, 0x40}, 472 {0x3307, 0x04}, 473 {0x3500, 0x00}, /* exposure H */ 474 {0x3501, 0x4d}, /* exposure M */ 475 {0x3502, 0x40}, /* exposure L */ 476 {0x3503, 0x80}, /* gain delay ?, exposure delay 1 frame, real gain */ 477 {0x3505, 0x80}, /* gain option */ 478 {0x3508, 0x02}, /* gain H */ 479 {0x3509, 0x00}, /* gain L */ 480 {0x350c, 0x00}, /* short gain H */ 481 {0x350d, 0x80}, /* short gain L */ 482 {0x3510, 0x00}, /* short exposure H */ 483 {0x3511, 0x02}, /* short exposure M */ 484 {0x3512, 0x00}, /* short exposure L */ 485 {0x3700, 0x18}, 486 {0x3701, 0x0c}, 487 {0x3702, 0x28}, 488 {0x3703, 0x19}, 489 {0x3704, 0x14}, 490 {0x3705, 0x00}, 491 {0x3706, 0x82}, 492 {0x3707, 0x04}, 493 {0x3708, 0x24}, 494 {0x3709, 0x33}, 495 {0x370a, 0x01}, 496 {0x370b, 0x82}, 497 {0x370c, 0x04}, 498 {0x3718, 0x12}, 499 {0x3719, 0x31}, 500 {0x3712, 0x42}, 501 {0x3714, 0x24}, 502 {0x371e, 0x19}, 503 {0x371f, 0x40}, 504 {0x3720, 0x05}, 505 {0x3721, 0x05}, 506 {0x3724, 0x06}, 507 {0x3725, 0x01}, 508 {0x3726, 0x06}, 509 {0x3728, 0x05}, 510 {0x3729, 0x02}, 511 {0x372a, 0x03}, 512 {0x372b, 0x53}, 513 {0x372c, 0xa3}, 514 {0x372d, 0x53}, 515 {0x372e, 0x06}, 516 {0x372f, 0x10}, 517 {0x3730, 0x01}, 518 {0x3731, 0x06}, 519 {0x3732, 0x14}, 520 {0x3733, 0x10}, 521 {0x3734, 0x40}, 522 {0x3736, 0x20}, 523 {0x373a, 0x05}, 524 {0x373b, 0x06}, 525 {0x373c, 0x0a}, 526 {0x373e, 0x03}, 527 {0x3750, 0x0a}, 528 {0x3751, 0x0e}, 529 {0x3755, 0x10}, 530 {0x3758, 0x00}, 531 {0x3759, 0x4c}, 532 {0x375a, 0x06}, 533 {0x375b, 0x13}, 534 {0x375c, 0x20}, 535 {0x375d, 0x02}, 536 {0x375e, 0x00}, 537 {0x375f, 0x14}, 538 {0x3768, 0x22}, 539 {0x3769, 0x44}, 540 {0x376a, 0x44}, 541 {0x3761, 0x00}, 542 {0x3762, 0x00}, 543 {0x3763, 0x00}, 544 {0x3766, 0xff}, 545 {0x376b, 0x00}, 546 {0x3772, 0x23}, 547 {0x3773, 0x02}, 548 {0x3774, 0x16}, 549 {0x3775, 0x12}, 550 {0x3776, 0x04}, 551 {0x3777, 0x00}, 552 {0x3778, 0x17}, 553 {0x37a0, 0x44}, 554 {0x37a1, 0x3d}, 555 {0x37a2, 0x3d}, 556 {0x37a3, 0x00}, 557 {0x37a4, 0x00}, 558 {0x37a5, 0x00}, 559 {0x37a6, 0x00}, 560 {0x37a7, 0x44}, 561 {0x37a8, 0x4c}, 562 {0x37a9, 0x4c}, 563 {0x3760, 0x00}, 564 {0x376f, 0x01}, 565 {0x37aa, 0x44}, 566 {0x37ab, 0x2e}, 567 {0x37ac, 0x2e}, 568 {0x37ad, 0x33}, 569 {0x37ae, 0x0d}, 570 {0x37af, 0x0d}, 571 {0x37b0, 0x00}, 572 {0x37b1, 0x00}, 573 {0x37b2, 0x00}, 574 {0x37b3, 0x42}, 575 {0x37b4, 0x42}, 576 {0x37b5, 0x31}, 577 {0x37b6, 0x00}, 578 {0x37b7, 0x00}, 579 {0x37b8, 0x00}, 580 {0x37b9, 0xff}, 581 {0x3800, 0x00}, /* x start H */ 582 {0x3801, 0x0c}, /* x start L */ 583 {0x3802, 0x00}, /* y start H */ 584 {0x3803, 0x0c}, /* y start L */ 585 {0x3804, 0x0c}, /* x end H */ 586 {0x3805, 0xd3}, /* x end L */ 587 {0x3806, 0x09}, /* y end H */ 588 {0x3807, 0xa3}, /* y end L */ 589 {0x3808, 0x06}, /* x output size H */ 590 {0x3809, 0x60}, /* x output size L */ 591 {0x380a, 0x04}, /* y output size H */ 592 {0x380b, 0xc8}, /* y output size L */ 593 {0x380c, 0x07}, /* HTS H */ 594 {0x380d, 0x88}, /* HTS L */ 595 {0x380e, 0x04}, /* VTS H */ 596 {0x380f, 0xdc}, /* VTS L */ 597 {0x3810, 0x00}, /* ISP x win H */ 598 {0x3811, 0x04}, /* ISP x win L */ 599 {0x3813, 0x02}, /* ISP y win L */ 600 {0x3814, 0x03}, /* x odd inc */ 601 {0x3815, 0x01}, /* x even inc */ 602 {0x3820, 0x00}, /* vflip off */ 603 {0x3821, 0x67}, /* mirror on, bin on */ 604 {0x382a, 0x03}, /* y odd inc */ 605 {0x382b, 0x01}, /* y even inc */ 606 {0x3830, 0x08}, 607 {0x3836, 0x02}, 608 {0x3837, 0x18}, 609 {0x3841, 0xff}, /* window auto size enable */ 610 {0x3846, 0x48}, 611 {0x3d85, 0x16}, /* OTP power up load data enable with BIST */ 612 {0x3d8c, 0x73}, /* OTP setting start High */ 613 {0x3d8d, 0xde}, /* OTP setting start Low */ 614 {0x3f08, 0x08}, 615 {0x3f0a, 0x00}, 616 {0x4000, 0xf1}, /* out_range_trig, format_chg_trig */ 617 {0x4001, 0x10}, /* total 128 black column */ 618 {0x4005, 0x10}, /* BLC target L */ 619 {0x4002, 0x27}, /* value used to limit BLC offset */ 620 {0x4009, 0x81}, /* final BLC offset limitation enable */ 621 {0x400b, 0x0c}, /* DCBLC on, DCBLC manual mode on */ 622 {0x401b, 0x00}, /* zero line R coefficient */ 623 {0x401d, 0x00}, /* zoro line T coefficient */ 624 {0x4020, 0x00}, /* Anchor left start H */ 625 {0x4021, 0x04}, /* Anchor left start L */ 626 {0x4022, 0x06}, /* Anchor left end H */ 627 {0x4023, 0x00}, /* Anchor left end L */ 628 {0x4024, 0x0f}, /* Anchor right start H */ 629 {0x4025, 0x2a}, /* Anchor right start L */ 630 {0x4026, 0x0f}, /* Anchor right end H */ 631 {0x4027, 0x2b}, /* Anchor right end L */ 632 {0x4028, 0x00}, /* top zero line start */ 633 {0x4029, 0x02}, /* top zero line number */ 634 {0x402a, 0x04}, /* top black line start */ 635 {0x402b, 0x04}, /* top black line number */ 636 {0x402c, 0x00}, /* bottom zero line start */ 637 {0x402d, 0x02}, /* bottom zoro line number */ 638 {0x402e, 0x04}, /* bottom black line start */ 639 {0x402f, 0x04}, /* bottom black line number */ 640 {0x401f, 0x00}, /* interpolation x/y disable, Anchor one disable */ 641 {0x4034, 0x3f}, 642 {0x403d, 0x04}, /* md_precision_en */ 643 {0x4300, 0xff}, /* clip max H */ 644 {0x4301, 0x00}, /* clip min H */ 645 {0x4302, 0x0f}, /* clip min L, clip max L */ 646 {0x4316, 0x00}, 647 {0x4500, 0x58}, 648 {0x4503, 0x18}, 649 {0x4600, 0x00}, 650 {0x4601, 0xcb}, 651 {0x481f, 0x32}, /* clk prepare min */ 652 {0x4837, 0x16}, /* global timing */ 653 {0x4850, 0x10}, /* lane 1 = 1, lane 0 = 0 */ 654 {0x4851, 0x32}, /* lane 3 = 3, lane 2 = 2 */ 655 {0x4b00, 0x2a}, 656 {0x4b0d, 0x00}, 657 {0x4d00, 0x04}, /* temperature sensor */ 658 {0x4d01, 0x18}, 659 {0x4d02, 0xc3}, 660 {0x4d03, 0xff}, 661 {0x4d04, 0xff}, 662 {0x4d05, 0xff}, /* temperature sensor */ 663 {0x5000, 0xfe}, /* lenc on, slave/master AWB gain/statistics enable */ 664 {0x5001, 0x01}, /* BLC on */ 665 {0x5002, 0x08}, /* H scale off, WBMATCH off, OTP_DPC */ 666 {0x5003, 0x20}, /* DPC_DBC buffer control enable, WB */ 667 {0x501e, 0x93}, /* enable digital gain */ 668 {0x5046, 0x12}, 669 {0x5780, 0x3e}, /* DPC */ 670 {0x5781, 0x0f}, 671 {0x5782, 0x44}, 672 {0x5783, 0x02}, 673 {0x5784, 0x01}, 674 {0x5785, 0x00}, 675 {0x5786, 0x00}, 676 {0x5787, 0x04}, 677 {0x5788, 0x02}, 678 {0x5789, 0x0f}, 679 {0x578a, 0xfd}, 680 {0x578b, 0xf5}, 681 {0x578c, 0xf5}, 682 {0x578d, 0x03}, 683 {0x578e, 0x08}, 684 {0x578f, 0x0c}, 685 {0x5790, 0x08}, 686 {0x5791, 0x04}, 687 {0x5792, 0x00}, 688 {0x5793, 0x52}, 689 {0x5794, 0xa3}, /* DPC */ 690 {0x5871, 0x0d}, /* Lenc */ 691 {0x5870, 0x18}, 692 {0x586e, 0x10}, 693 {0x586f, 0x08}, 694 {0x58f7, 0x01}, 695 {0x58f8, 0x3d}, /* Lenc */ 696 {0x5901, 0x00}, /* H skip off, V skip off */ 697 {0x5b00, 0x02}, /* OTP DPC start address */ 698 {0x5b01, 0x10}, /* OTP DPC start address */ 699 {0x5b02, 0x03}, /* OTP DPC end address */ 700 {0x5b03, 0xcf}, /* OTP DPC end address */ 701 {0x5b05, 0x6c}, /* recover method = 2b11, */ 702 {0x5e00, 0x00}, /* use 0x3ff to test pattern off */ 703 {0x5e01, 0x41}, /* window cut enable */ 704 {0x382d, 0x7f}, 705 {0x4825, 0x3a}, /* lpx_p_min */ 706 {0x4826, 0x40}, /* hs_prepare_min */ 707 {0x4808, 0x25}, /* wake up delay in 1/1024 s */ 708 {0x3763, 0x18}, 709 {0x3768, 0xcc}, 710 {0x470b, 0x28}, 711 {0x4202, 0x00}, 712 {0x400d, 0x10}, /* BLC offset trigger L */ 713 {0x4040, 0x04}, /* BLC gain th2 */ 714 {0x403e, 0x04}, /* BLC gain th1 */ 715 {0x4041, 0xc6}, /* BLC */ 716 {0x3007, 0x80}, 717 {0x400a, 0x01}, 718 {REG_NULL, 0x00}, 719 }; 720 721 /* 722 * Xclk 24Mhz 723 * max_framerate 30fps 724 * mipi_datarate per lane 720Mbps 725 */ 726 static const struct regval ov8858_1632x1224_regs_2lane[] = { 727 /* 728 * MIPI=720Mbps, SysClk=144Mhz,Dac Clock=360Mhz. 729 * v00_01_00 (05/29/2014) : initial setting 730 * AM19 : 3617 <- 0xC0 731 * AM20 : change FWC_6K_EN to be default 0x3618=0x5a 732 */ 733 {0x0100, 0x00}, 734 {0x3501, 0x4d}, /* exposure M */ 735 {0x3502, 0x40}, /* exposure L */ 736 {0x3778, 0x17}, 737 {0x3808, 0x06}, /* x output size H */ 738 {0x3809, 0x60}, /* x output size L */ 739 {0x380a, 0x04}, /* y output size H */ 740 {0x380b, 0xc8}, /* y output size L */ 741 {0x380c, 0x07}, /* HTS H */ 742 {0x380d, 0x88}, /* HTS L */ 743 {0x380e, 0x04}, /* VTS H */ 744 {0x380f, 0xdc}, /* VTS L */ 745 {0x3814, 0x03}, /* x odd inc */ 746 {0x3821, 0x67}, /* mirror on, bin on */ 747 {0x382a, 0x03}, /* y odd inc */ 748 {0x3830, 0x08}, 749 {0x3836, 0x02}, 750 {0x3f0a, 0x00}, 751 {0x4001, 0x10}, /* total 128 black column */ 752 {0x4022, 0x06}, /* Anchor left end H */ 753 {0x4023, 0x00}, /* Anchor left end L */ 754 {0x4025, 0x2a}, /* Anchor right start L */ 755 {0x4027, 0x2b}, /* Anchor right end L */ 756 {0x402b, 0x04}, /* top black line number */ 757 {0x402f, 0x04}, /* bottom black line number */ 758 {0x4500, 0x58}, 759 {0x4600, 0x00}, 760 {0x4601, 0xcb}, 761 {0x382d, 0x7f}, 762 {0x0100, 0x01}, 763 {REG_NULL, 0x00}, 764 }; 765 766 /* 767 * Xclk 24Mhz 768 * max_framerate 15fps 769 * mipi_datarate per lane 720Mbps 770 */ 771 static const struct regval ov8858_3264x2448_regs_2lane[] = { 772 {0x0100, 0x00}, 773 {0x3501, 0x9a}, /* exposure M */ 774 {0x3502, 0x20}, /* exposure L */ 775 {0x3778, 0x1a}, 776 {0x3808, 0x0c}, /* x output size H */ 777 {0x3809, 0xc0}, /* x output size L */ 778 {0x380a, 0x09}, /* y output size H */ 779 {0x380b, 0x90}, /* y output size L */ 780 {0x380c, 0x07}, /* HTS H */ 781 {0x380d, 0x94}, /* HTS L */ 782 {0x380e, 0x09}, /* VTS H */ 783 {0x380f, 0xaa}, /* VTS L */ 784 {0x3814, 0x01}, /* x odd inc */ 785 {0x3821, 0x46}, /* mirror on, bin off */ 786 {0x382a, 0x01}, /* y odd inc */ 787 {0x3830, 0x06}, 788 {0x3836, 0x01}, 789 {0x3f0a, 0x00}, 790 {0x4001, 0x00}, /* total 256 black column */ 791 {0x4022, 0x0c}, /* Anchor left end H */ 792 {0x4023, 0x60}, /* Anchor left end L */ 793 {0x4025, 0x36}, /* Anchor right start L */ 794 {0x4027, 0x37}, /* Anchor right end L */ 795 {0x402b, 0x08}, /* top black line number */ 796 {0x402f, 0x08}, /* bottom black line number */ 797 {0x4500, 0x58}, 798 {0x4600, 0x01}, 799 {0x4601, 0x97}, 800 {0x382d, 0xff}, 801 {REG_NULL, 0x00}, 802 }; 803 804 static const struct regval ov8858_global_regs_r2a_4lane[] = { 805 /* 806 * MIPI=720Mbps, SysClk=144Mhz,Dac Clock=360Mhz. 807 * v00_01_00 (05/29/2014) : initial setting 808 * AM19 : 3617 <- 0xC0 809 * AM20 : change FWC_6K_EN to be default 0x3618=0x5a 810 */ 811 {0x0103, 0x01}, /* software reset for OVTATool only */ 812 {0x0103, 0x01}, /* software reset */ 813 {0x0100, 0x00}, /* software standby */ 814 {0x0302, 0x1e}, /* pll1_multi */ 815 {0x0303, 0x00}, /* pll1_divm */ 816 {0x0304, 0x03}, /* pll1_div_mipi */ 817 {0x030e, 0x00}, /* pll2_rdiv */ 818 {0x030f, 0x04}, /* pll2_divsp */ 819 {0x0312, 0x01}, /* pll2_pre_div0, pll2_r_divdac */ 820 {0x031e, 0x0c}, /* pll1_no_lat */ 821 {0x3600, 0x00}, 822 {0x3601, 0x00}, 823 {0x3602, 0x00}, 824 {0x3603, 0x00}, 825 {0x3604, 0x22}, 826 {0x3605, 0x20}, 827 {0x3606, 0x00}, 828 {0x3607, 0x20}, 829 {0x3608, 0x11}, 830 {0x3609, 0x28}, 831 {0x360a, 0x00}, 832 {0x360b, 0x05}, 833 {0x360c, 0xd4}, 834 {0x360d, 0x40}, 835 {0x360e, 0x0c}, 836 {0x360f, 0x20}, 837 {0x3610, 0x07}, 838 {0x3611, 0x20}, 839 {0x3612, 0x88}, 840 {0x3613, 0x80}, 841 {0x3614, 0x58}, 842 {0x3615, 0x00}, 843 {0x3616, 0x4a}, 844 {0x3617, 0x90}, 845 {0x3618, 0x5a}, 846 {0x3619, 0x70}, 847 {0x361a, 0x99}, 848 {0x361b, 0x0a}, 849 {0x361c, 0x07}, 850 {0x361d, 0x00}, 851 {0x361e, 0x00}, 852 {0x361f, 0x00}, 853 {0x3638, 0xff}, 854 {0x3633, 0x0f}, 855 {0x3634, 0x0f}, 856 {0x3635, 0x0f}, 857 {0x3636, 0x12}, 858 {0x3645, 0x13}, 859 {0x3646, 0x83}, 860 {0x364a, 0x07}, 861 {0x3015, 0x01}, 862 {0x3018, 0x72}, /* MIPI 4 lane */ 863 {0x3020, 0x93}, /* Clock switch output normal, pclk_div =/1 */ 864 {0x3022, 0x01}, /* pd_mipi enable when rst_sync */ 865 {0x3031, 0x0a}, /* MIPI 10-bit mode */ 866 {0x3034, 0x00}, 867 {0x3106, 0x01}, /* sclk_div, sclk_pre_div */ 868 {0x3305, 0xf1}, 869 {0x3308, 0x00}, 870 {0x3309, 0x28}, 871 {0x330a, 0x00}, 872 {0x330b, 0x20}, 873 {0x330c, 0x00}, 874 {0x330d, 0x00}, 875 {0x330e, 0x00}, 876 {0x330f, 0x40}, 877 {0x3307, 0x04}, 878 {0x3500, 0x00}, /* exposure H */ 879 {0x3501, 0x4d}, /* exposure M */ 880 {0x3502, 0x40}, /* exposure L */ 881 {0x3503, 0x80}, /* gain delay ?, exposure delay 1 frame, real gain */ 882 {0x3505, 0x80}, /* gain option */ 883 {0x3508, 0x02}, /* gain H */ 884 {0x3509, 0x00}, /* gain L */ 885 {0x350c, 0x00}, /* short gain H */ 886 {0x350d, 0x80}, /* short gain L */ 887 {0x3510, 0x00}, /* short exposure H */ 888 {0x3511, 0x02}, /* short exposure M */ 889 {0x3512, 0x00}, /* short exposure L */ 890 {0x3700, 0x30}, 891 {0x3701, 0x18}, 892 {0x3702, 0x50}, 893 {0x3703, 0x32}, 894 {0x3704, 0x28}, 895 {0x3705, 0x00}, 896 {0x3706, 0x82}, 897 {0x3707, 0x08}, 898 {0x3708, 0x48}, 899 {0x3709, 0x66}, 900 {0x370a, 0x01}, 901 {0x370b, 0x82}, 902 {0x370c, 0x07}, 903 {0x3718, 0x14}, 904 {0x3719, 0x31}, 905 {0x3712, 0x44}, 906 {0x3714, 0x24}, 907 {0x371e, 0x31}, 908 {0x371f, 0x7f}, 909 {0x3720, 0x0a}, 910 {0x3721, 0x0a}, 911 {0x3724, 0x0c}, 912 {0x3725, 0x02}, 913 {0x3726, 0x0c}, 914 {0x3728, 0x0a}, 915 {0x3729, 0x03}, 916 {0x372a, 0x06}, 917 {0x372b, 0xa6}, 918 {0x372c, 0xa6}, 919 {0x372d, 0xa6}, 920 {0x372e, 0x0c}, 921 {0x372f, 0x20}, 922 {0x3730, 0x02}, 923 {0x3731, 0x0c}, 924 {0x3732, 0x28}, 925 {0x3733, 0x10}, 926 {0x3734, 0x40}, 927 {0x3736, 0x30}, 928 {0x373a, 0x0a}, 929 {0x373b, 0x0b}, 930 {0x373c, 0x14}, 931 {0x373e, 0x06}, 932 {0x3750, 0x0a}, 933 {0x3751, 0x0e}, 934 {0x3755, 0x10}, 935 {0x3758, 0x00}, 936 {0x3759, 0x4c}, 937 {0x375a, 0x0c}, 938 {0x375b, 0x26}, 939 {0x375c, 0x20}, 940 {0x375d, 0x04}, 941 {0x375e, 0x00}, 942 {0x375f, 0x28}, 943 {0x3768, 0x22}, 944 {0x3769, 0x44}, 945 {0x376a, 0x44}, 946 {0x3761, 0x00}, 947 {0x3762, 0x00}, 948 {0x3763, 0x00}, 949 {0x3766, 0xff}, 950 {0x376b, 0x00}, 951 {0x3772, 0x46}, 952 {0x3773, 0x04}, 953 {0x3774, 0x2c}, 954 {0x3775, 0x13}, 955 {0x3776, 0x08}, 956 {0x3777, 0x00}, 957 {0x3778, 0x17}, 958 {0x37a0, 0x88}, 959 {0x37a1, 0x7a}, 960 {0x37a2, 0x7a}, 961 {0x37a3, 0x00}, 962 {0x37a4, 0x00}, 963 {0x37a5, 0x00}, 964 {0x37a6, 0x00}, 965 {0x37a7, 0x88}, 966 {0x37a8, 0x98}, 967 {0x37a9, 0x98}, 968 {0x3760, 0x00}, 969 {0x376f, 0x01}, 970 {0x37aa, 0x88}, 971 {0x37ab, 0x5c}, 972 {0x37ac, 0x5c}, 973 {0x37ad, 0x55}, 974 {0x37ae, 0x19}, 975 {0x37af, 0x19}, 976 {0x37b0, 0x00}, 977 {0x37b1, 0x00}, 978 {0x37b2, 0x00}, 979 {0x37b3, 0x84}, 980 {0x37b4, 0x84}, 981 {0x37b5, 0x60}, 982 {0x37b6, 0x00}, 983 {0x37b7, 0x00}, 984 {0x37b8, 0x00}, 985 {0x37b9, 0xff}, 986 {0x3800, 0x00}, /* x start H */ 987 {0x3801, 0x0c}, /* x start L */ 988 {0x3802, 0x00}, /* y start H */ 989 {0x3803, 0x0c}, /* y start L */ 990 {0x3804, 0x0c}, /* x end H */ 991 {0x3805, 0xd3}, /* x end L */ 992 {0x3806, 0x09}, /* y end H */ 993 {0x3807, 0xa3}, /* y end L */ 994 {0x3808, 0x06}, /* x output size H */ 995 {0x3809, 0x60}, /* x output size L */ 996 {0x380a, 0x04}, /* y output size H */ 997 {0x380b, 0xc8}, /* y output size L */ 998 {0x380c, 0x07}, /* HTS H */ 999 {0x380d, 0x88}, /* HTS L */ 1000 {0x380e, 0x04}, /* VTS H */ 1001 {0x380f, 0xdc}, /* VTS L */ 1002 {0x3810, 0x00}, /* ISP x win H */ 1003 {0x3811, 0x04}, /* ISP x win L */ 1004 {0x3813, 0x02}, /* ISP y win L */ 1005 {0x3814, 0x03}, /* x odd inc */ 1006 {0x3815, 0x01}, /* x even inc */ 1007 {0x3820, 0x00}, /* vflip off */ 1008 {0x3821, 0x67}, /* mirror on, bin o */ 1009 {0x382a, 0x03}, /* y odd inc */ 1010 {0x382b, 0x01}, /* y even inc */ 1011 {0x3830, 0x08}, 1012 {0x3836, 0x02}, 1013 {0x3837, 0x18}, 1014 {0x3841, 0xff}, /* window auto size enable */ 1015 {0x3846, 0x48}, 1016 {0x3d85, 0x16}, /* OTP power up load data/setting enable */ 1017 {0x3d8c, 0x73}, /* OTP setting start High */ 1018 {0x3d8d, 0xde}, /* OTP setting start Low */ 1019 {0x3f08, 0x10}, 1020 {0x3f0a, 0x00}, 1021 {0x4000, 0xf1}, /* out_range/format_chg/gain/exp_chg trig enable */ 1022 {0x4001, 0x10}, /* total 128 black column */ 1023 {0x4005, 0x10}, /* BLC target L */ 1024 {0x4002, 0x27}, /* value used to limit BLC offset */ 1025 {0x4009, 0x81}, /* final BLC offset limitation enable */ 1026 {0x400b, 0x0c}, /* DCBLC on, DCBLC manual mode on */ 1027 {0x401b, 0x00}, /* zero line R coefficient */ 1028 {0x401d, 0x00}, /* zoro line T coefficient */ 1029 {0x4020, 0x00}, /* Anchor left start H */ 1030 {0x4021, 0x04}, /* Anchor left start L */ 1031 {0x4022, 0x06}, /* Anchor left end H */ 1032 {0x4023, 0x00}, /* Anchor left end L */ 1033 {0x4024, 0x0f}, /* Anchor right start H */ 1034 {0x4025, 0x2a}, /* Anchor right start L */ 1035 {0x4026, 0x0f}, /* Anchor right end H */ 1036 {0x4027, 0x2b}, /* Anchor right end L */ 1037 {0x4028, 0x00}, /* top zero line start */ 1038 {0x4029, 0x02}, /* top zero line number */ 1039 {0x402a, 0x04}, /* top black line start */ 1040 {0x402b, 0x04}, /* top black line number */ 1041 {0x402c, 0x00}, /* bottom zero line start */ 1042 {0x402d, 0x02}, /* bottom zoro line number */ 1043 {0x402e, 0x04}, /* bottom black line start */ 1044 {0x402f, 0x04}, /* bottom black line number */ 1045 {0x401f, 0x00}, /* interpolation x/y disable, Anchor one disable */ 1046 {0x4034, 0x3f}, 1047 {0x403d, 0x04}, /* md_precision_en */ 1048 {0x4300, 0xff}, /* clip max H */ 1049 {0x4301, 0x00}, /* clip min H */ 1050 {0x4302, 0x0f}, /* clip min L, clip max L */ 1051 {0x4316, 0x00}, 1052 {0x4500, 0x58}, 1053 {0x4503, 0x18}, 1054 {0x4600, 0x00}, 1055 {0x4601, 0xcb}, 1056 {0x481f, 0x32}, /* clk prepare min */ 1057 {0x4837, 0x16}, /* global timing */ 1058 {0x4850, 0x10}, /* lane 1 = 1, lane 0 = 0 */ 1059 {0x4851, 0x32}, /* lane 3 = 3, lane 2 = 2 */ 1060 {0x4b00, 0x2a}, 1061 {0x4b0d, 0x00}, 1062 {0x4d00, 0x04}, /* temperature sensor */ 1063 {0x4d01, 0x18}, 1064 {0x4d02, 0xc3}, 1065 {0x4d03, 0xff}, 1066 {0x4d04, 0xff}, 1067 {0x4d05, 0xff}, /* temperature sensor */ 1068 {0x5000, 0xfe}, /* lenc on, slave/master AWB gain/statistics enable */ 1069 {0x5001, 0x01}, /* BLC on */ 1070 {0x5002, 0x08}, /* WBMATCH sensor's gain, H scale/WBMATCH/OTP_DPC off */ 1071 {0x5003, 0x20}, /* DPC_DBC buffer control enable, WB */ 1072 {0x501e, 0x93}, /* enable digital gain */ 1073 {0x5046, 0x12}, 1074 {0x5780, 0x3e}, /* DPC */ 1075 {0x5781, 0x0f}, 1076 {0x5782, 0x44}, 1077 {0x5783, 0x02}, 1078 {0x5784, 0x01}, 1079 {0x5785, 0x00}, 1080 {0x5786, 0x00}, 1081 {0x5787, 0x04}, 1082 {0x5788, 0x02}, 1083 {0x5789, 0x0f}, 1084 {0x578a, 0xfd}, 1085 {0x578b, 0xf5}, 1086 {0x578c, 0xf5}, 1087 {0x578d, 0x03}, 1088 {0x578e, 0x08}, 1089 {0x578f, 0x0c}, 1090 {0x5790, 0x08}, 1091 {0x5791, 0x04}, 1092 {0x5792, 0x00}, 1093 {0x5793, 0x52}, 1094 {0x5794, 0xa3}, /* DPC */ 1095 {0x5871, 0x0d}, /* Lenc */ 1096 {0x5870, 0x18}, 1097 {0x586e, 0x10}, 1098 {0x586f, 0x08}, 1099 {0x58f7, 0x01}, 1100 {0x58f8, 0x3d}, /* Lenc */ 1101 {0x5901, 0x00}, /* H skip off, V skip off */ 1102 {0x5b00, 0x02}, /* OTP DPC start address */ 1103 {0x5b01, 0x10}, /* OTP DPC start address */ 1104 {0x5b02, 0x03}, /* OTP DPC end address */ 1105 {0x5b03, 0xcf}, /* OTP DPC end address */ 1106 {0x5b05, 0x6c}, /* recover method = 2b11 */ 1107 {0x5e00, 0x00}, /* use 0x3ff to test pattern off */ 1108 {0x5e01, 0x41}, /* window cut enable */ 1109 {0x382d, 0x7f}, 1110 {0x4825, 0x3a}, /* lpx_p_min */ 1111 {0x4826, 0x40}, /* hs_prepare_min */ 1112 {0x4808, 0x25}, /* wake up delay in 1/1024 s */ 1113 {0x3763, 0x18}, 1114 {0x3768, 0xcc}, 1115 {0x470b, 0x28}, 1116 {0x4202, 0x00}, 1117 {0x400d, 0x10}, /* BLC offset trigger L */ 1118 {0x4040, 0x04}, /* BLC gain th2 */ 1119 {0x403e, 0x04}, /* BLC gain th1 */ 1120 {0x4041, 0xc6}, /* BLC */ 1121 {0x3007, 0x80}, 1122 {0x400a, 0x01}, 1123 {REG_NULL, 0x00}, 1124 }; 1125 1126 /* 1127 * Xclk 24Mhz 1128 * max_framerate 60fps 1129 * mipi_datarate per lane 720Mbps 1130 */ 1131 static const struct regval ov8858_1632x1224_regs_4lane[] = { 1132 {0x0100, 0x00}, 1133 {0x3501, 0x4d}, /* exposure M */ 1134 {0x3502, 0x40}, /* exposure L */ 1135 {0x3808, 0x06}, /* x output size H */ 1136 {0x3809, 0x60}, /* x output size L */ 1137 {0x380a, 0x04}, /* y output size H */ 1138 {0x380b, 0xc8}, /* y output size L */ 1139 {0x380c, 0x07}, /* HTS H */ 1140 {0x380d, 0x88}, /* HTS L */ 1141 {0x380e, 0x04}, /* VTS H */ 1142 {0x380f, 0xdc}, /* VTS L */ 1143 {0x3814, 0x03}, /* x odd inc */ 1144 {0x3821, 0x67}, /* mirror on, bin on */ 1145 {0x382a, 0x03}, /* y odd inc */ 1146 {0x3830, 0x08}, 1147 {0x3836, 0x02}, 1148 {0x3f0a, 0x00}, 1149 {0x4001, 0x10}, /* total 128 black column */ 1150 {0x4022, 0x06}, /* Anchor left end H */ 1151 {0x4023, 0x00}, /* Anchor left end L */ 1152 {0x4025, 0x2a}, /* Anchor right start L */ 1153 {0x4027, 0x2b}, /* Anchor right end L */ 1154 {0x402b, 0x04}, /* top black line number */ 1155 {0x402f, 0x04}, /* bottom black line number */ 1156 {0x4500, 0x58}, 1157 {0x4600, 0x00}, 1158 {0x4601, 0xcb}, 1159 {0x382d, 0x7f}, 1160 {0x0100, 0x01}, 1161 {REG_NULL, 0x00}, 1162 }; 1163 1164 /* 1165 * Xclk 24Mhz 1166 * max_framerate 30fps 1167 * mipi_datarate per lane 720Mbps 1168 */ 1169 static const struct regval ov8858_3264x2448_regs_4lane[] = { 1170 {0x0100, 0x00}, 1171 {0x3501, 0x9a}, /* exposure M */ 1172 {0x3502, 0x20}, /* exposure L */ 1173 {0x3808, 0x0c}, /* x output size H */ 1174 {0x3809, 0xc0}, /* x output size L */ 1175 {0x380a, 0x09}, /* y output size H */ 1176 {0x380b, 0x90}, /* y output size L */ 1177 {0x380c, 0x07}, /* HTS H */ 1178 {0x380d, 0x94}, /* HTS L */ 1179 {0x380e, 0x09}, /* VTS H */ 1180 {0x380f, 0xaa}, /* VTS L */ 1181 {0x3814, 0x01}, /* x odd inc */ 1182 {0x3821, 0x46}, /* mirror on, bin off */ 1183 {0x382a, 0x01}, /* y odd inc */ 1184 {0x3830, 0x06}, 1185 {0x3836, 0x01}, 1186 {0x3f0a, 0x00}, 1187 {0x4001, 0x00}, /* total 256 black column */ 1188 {0x4022, 0x0c}, /* Anchor left end H */ 1189 {0x4023, 0x60}, /* Anchor left end L */ 1190 {0x4025, 0x36}, /* Anchor right start L */ 1191 {0x4027, 0x37}, /* Anchor right end L */ 1192 {0x402b, 0x08}, /* top black line number */ 1193 {0x402f, 0x08}, /* interpolation x/y disable, Anchor one disable */ 1194 {0x4500, 0x58}, 1195 {0x4600, 0x01}, 1196 {0x4601, 0x97}, 1197 {0x382d, 0xff}, 1198 {REG_NULL, 0x00}, 1199 }; 1200 1201 static const struct ov8858_mode ov8858_modes[] = { 1202 { 1203 .width = 3264, 1204 .height = 2448, 1205 .exp_def = 2464, 1206 .hts_def = 1940 * 2, 1207 .vts_def = 2472, 1208 .reg_modes = { 1209 .mode_2lanes = ov8858_3264x2448_regs_2lane, 1210 .mode_4lanes = ov8858_3264x2448_regs_4lane, 1211 }, 1212 }, 1213 { 1214 .width = 1632, 1215 .height = 1224, 1216 .exp_def = 1232, 1217 .hts_def = 1928 * 2, 1218 .vts_def = 1244, 1219 .reg_modes = { 1220 .mode_2lanes = ov8858_1632x1224_regs_2lane, 1221 .mode_4lanes = ov8858_1632x1224_regs_4lane, 1222 }, 1223 }, 1224 }; 1225 1226 static const s64 link_freq_menu_items[] = { 1227 OV8858_LINK_FREQ 1228 }; 1229 1230 static const char * const ov8858_test_pattern_menu[] = { 1231 "Disabled", 1232 "Vertical Color Bar Type 1", 1233 "Vertical Color Bar Type 2", 1234 "Vertical Color Bar Type 3", 1235 "Vertical Color Bar Type 4" 1236 }; 1237 1238 /* ---------------------------------------------------------------------------- 1239 * HW access 1240 */ 1241 1242 static int ov8858_write(struct ov8858 *ov8858, u32 reg, u32 val, int *err) 1243 { 1244 struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev); 1245 unsigned int len = (reg >> OV8858_REG_SIZE_SHIFT) & 3; 1246 u16 addr = reg & OV8858_REG_ADDR_MASK; 1247 u8 buf[6]; 1248 int ret; 1249 1250 if (err && *err) 1251 return *err; 1252 1253 put_unaligned_be16(addr, buf); 1254 put_unaligned_be32(val << (8 * (4 - len)), buf + 2); 1255 1256 ret = i2c_master_send(client, buf, len + 2); 1257 if (ret != len + 2) { 1258 ret = ret < 0 ? ret : -EIO; 1259 if (err) 1260 *err = ret; 1261 1262 dev_err(&client->dev, 1263 "Failed to write reg %u: %d\n", addr, ret); 1264 return ret; 1265 } 1266 1267 return 0; 1268 } 1269 1270 static int ov8858_write_array(struct ov8858 *ov8858, const struct regval *regs) 1271 { 1272 unsigned int i; 1273 int ret = 0; 1274 1275 for (i = 0; ret == 0 && regs[i].addr != REG_NULL; ++i) { 1276 ov8858_write(ov8858, OV8858_REG_8BIT(regs[i].addr), 1277 regs[i].val, &ret); 1278 } 1279 1280 return ret; 1281 } 1282 1283 static int ov8858_read(struct ov8858 *ov8858, u32 reg, u32 *val) 1284 { 1285 struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev); 1286 __be16 reg_addr_be = cpu_to_be16(reg & OV8858_REG_ADDR_MASK); 1287 unsigned int len = (reg >> OV8858_REG_SIZE_SHIFT) & 3; 1288 struct i2c_msg msgs[2]; 1289 __be32 data_be = 0; 1290 u8 *data_be_p; 1291 int ret; 1292 1293 data_be_p = (u8 *)&data_be; 1294 1295 /* Write register address */ 1296 msgs[0].addr = client->addr; 1297 msgs[0].flags = 0; 1298 msgs[0].len = 2; 1299 msgs[0].buf = (u8 *)®_addr_be; 1300 1301 /* Read data from register */ 1302 msgs[1].addr = client->addr; 1303 msgs[1].flags = I2C_M_RD; 1304 msgs[1].len = len; 1305 msgs[1].buf = &data_be_p[4 - len]; 1306 1307 ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); 1308 if (ret != ARRAY_SIZE(msgs)) { 1309 ret = ret < 0 ? ret : -EIO; 1310 dev_err(&client->dev, 1311 "Failed to read reg %u: %d\n", reg, ret); 1312 return ret; 1313 } 1314 1315 *val = be32_to_cpu(data_be); 1316 1317 return 0; 1318 } 1319 1320 /* ---------------------------------------------------------------------------- 1321 * Streaming 1322 */ 1323 1324 static int ov8858_start_stream(struct ov8858 *ov8858, 1325 struct v4l2_subdev_state *state) 1326 { 1327 struct v4l2_mbus_framefmt *format; 1328 const struct ov8858_mode *mode; 1329 const struct regval *reg_list; 1330 int ret; 1331 1332 ret = ov8858_write_array(ov8858, ov8858->global_regs); 1333 if (ret) 1334 return ret; 1335 1336 format = v4l2_subdev_state_get_format(state, 0); 1337 mode = v4l2_find_nearest_size(ov8858_modes, ARRAY_SIZE(ov8858_modes), 1338 width, height, format->width, 1339 format->height); 1340 1341 reg_list = ov8858->num_lanes == 4 1342 ? mode->reg_modes.mode_4lanes 1343 : mode->reg_modes.mode_2lanes; 1344 1345 ret = ov8858_write_array(ov8858, reg_list); 1346 if (ret) 1347 return ret; 1348 1349 /* 200 usec max to let PLL stabilize. */ 1350 fsleep(200); 1351 1352 ret = __v4l2_ctrl_handler_setup(&ov8858->ctrl_handler); 1353 if (ret) 1354 return ret; 1355 1356 ret = ov8858_write(ov8858, OV8858_REG_SC_CTRL0100, 1357 OV8858_MODE_STREAMING, NULL); 1358 if (ret) 1359 return ret; 1360 1361 /* t5 (fixed) = 10msec before entering streaming state */ 1362 fsleep(10000); 1363 1364 return 0; 1365 } 1366 1367 static int ov8858_stop_stream(struct ov8858 *ov8858) 1368 { 1369 return ov8858_write(ov8858, OV8858_REG_SC_CTRL0100, 1370 OV8858_MODE_SW_STANDBY, NULL); 1371 } 1372 1373 static int ov8858_s_stream(struct v4l2_subdev *sd, int on) 1374 { 1375 struct i2c_client *client = v4l2_get_subdevdata(sd); 1376 struct ov8858 *ov8858 = sd_to_ov8858(sd); 1377 struct v4l2_subdev_state *state; 1378 int ret = 0; 1379 1380 state = v4l2_subdev_lock_and_get_active_state(sd); 1381 1382 if (on) { 1383 ret = pm_runtime_resume_and_get(&client->dev); 1384 if (ret < 0) 1385 goto unlock_and_return; 1386 1387 ret = ov8858_start_stream(ov8858, state); 1388 if (ret) { 1389 dev_err(&client->dev, "Failed to start streaming\n"); 1390 pm_runtime_put_sync(&client->dev); 1391 goto unlock_and_return; 1392 } 1393 } else { 1394 ov8858_stop_stream(ov8858); 1395 pm_runtime_mark_last_busy(&client->dev); 1396 pm_runtime_put_autosuspend(&client->dev); 1397 } 1398 1399 unlock_and_return: 1400 v4l2_subdev_unlock_state(state); 1401 1402 return ret; 1403 } 1404 1405 static const struct v4l2_subdev_video_ops ov8858_video_ops = { 1406 .s_stream = ov8858_s_stream, 1407 }; 1408 1409 /* ---------------------------------------------------------------------------- 1410 * Pad ops 1411 */ 1412 1413 static int ov8858_set_fmt(struct v4l2_subdev *sd, 1414 struct v4l2_subdev_state *state, 1415 struct v4l2_subdev_format *fmt) 1416 { 1417 struct ov8858 *ov8858 = sd_to_ov8858(sd); 1418 const struct ov8858_mode *mode; 1419 s64 h_blank, vblank_def; 1420 1421 mode = v4l2_find_nearest_size(ov8858_modes, ARRAY_SIZE(ov8858_modes), 1422 width, height, fmt->format.width, 1423 fmt->format.height); 1424 1425 fmt->format.code = MEDIA_BUS_FMT_SBGGR10_1X10; 1426 fmt->format.width = mode->width; 1427 fmt->format.height = mode->height; 1428 fmt->format.field = V4L2_FIELD_NONE; 1429 1430 /* Store the format in the current subdev state. */ 1431 *v4l2_subdev_state_get_format(state, 0) = fmt->format; 1432 1433 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) 1434 return 0; 1435 1436 /* Adjust control limits when a new mode is applied. */ 1437 h_blank = mode->hts_def - mode->width; 1438 __v4l2_ctrl_modify_range(ov8858->hblank, h_blank, h_blank, 1, 1439 h_blank); 1440 1441 vblank_def = mode->vts_def - mode->height; 1442 __v4l2_ctrl_modify_range(ov8858->vblank, vblank_def, 1443 OV8858_VTS_MAX - mode->height, 1, 1444 vblank_def); 1445 1446 return 0; 1447 } 1448 1449 static int ov8858_enum_frame_sizes(struct v4l2_subdev *sd, 1450 struct v4l2_subdev_state *state, 1451 struct v4l2_subdev_frame_size_enum *fse) 1452 { 1453 if (fse->index >= ARRAY_SIZE(ov8858_modes)) 1454 return -EINVAL; 1455 1456 if (fse->code != MEDIA_BUS_FMT_SBGGR10_1X10) 1457 return -EINVAL; 1458 1459 fse->min_width = ov8858_modes[fse->index].width; 1460 fse->max_width = ov8858_modes[fse->index].width; 1461 fse->max_height = ov8858_modes[fse->index].height; 1462 fse->min_height = ov8858_modes[fse->index].height; 1463 1464 return 0; 1465 } 1466 1467 static int ov8858_enum_mbus_code(struct v4l2_subdev *sd, 1468 struct v4l2_subdev_state *state, 1469 struct v4l2_subdev_mbus_code_enum *code) 1470 { 1471 if (code->index != 0) 1472 return -EINVAL; 1473 1474 code->code = MEDIA_BUS_FMT_SBGGR10_1X10; 1475 1476 return 0; 1477 } 1478 1479 static int ov8858_init_state(struct v4l2_subdev *sd, 1480 struct v4l2_subdev_state *sd_state) 1481 { 1482 const struct ov8858_mode *def_mode = &ov8858_modes[0]; 1483 struct v4l2_subdev_format fmt = { 1484 .which = V4L2_SUBDEV_FORMAT_TRY, 1485 .format = { 1486 .width = def_mode->width, 1487 .height = def_mode->height, 1488 }, 1489 }; 1490 1491 ov8858_set_fmt(sd, sd_state, &fmt); 1492 1493 return 0; 1494 } 1495 1496 static const struct v4l2_subdev_pad_ops ov8858_pad_ops = { 1497 .enum_mbus_code = ov8858_enum_mbus_code, 1498 .enum_frame_size = ov8858_enum_frame_sizes, 1499 .get_fmt = v4l2_subdev_get_fmt, 1500 .set_fmt = ov8858_set_fmt, 1501 }; 1502 1503 static const struct v4l2_subdev_core_ops ov8858_core_ops = { 1504 .subscribe_event = v4l2_ctrl_subdev_subscribe_event, 1505 .unsubscribe_event = v4l2_event_subdev_unsubscribe, 1506 }; 1507 1508 static const struct v4l2_subdev_ops ov8858_subdev_ops = { 1509 .core = &ov8858_core_ops, 1510 .video = &ov8858_video_ops, 1511 .pad = &ov8858_pad_ops, 1512 }; 1513 1514 static const struct v4l2_subdev_internal_ops ov8858_internal_ops = { 1515 .init_state = ov8858_init_state, 1516 }; 1517 1518 /* ---------------------------------------------------------------------------- 1519 * Controls handling 1520 */ 1521 1522 static int ov8858_enable_test_pattern(struct ov8858 *ov8858, u32 pattern) 1523 { 1524 u32 val; 1525 1526 if (pattern) 1527 val = (pattern - 1) | OV8858_TEST_PATTERN_ENABLE; 1528 else 1529 val = OV8858_TEST_PATTERN_DISABLE; 1530 1531 return ov8858_write(ov8858, OV8858_REG_TEST_PATTERN, val, NULL); 1532 } 1533 1534 static int ov8858_set_ctrl(struct v4l2_ctrl *ctrl) 1535 { 1536 struct ov8858 *ov8858 = container_of(ctrl->handler, 1537 struct ov8858, ctrl_handler); 1538 1539 struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev); 1540 struct v4l2_mbus_framefmt *format; 1541 struct v4l2_subdev_state *state; 1542 u16 digi_gain; 1543 s64 max_exp; 1544 int ret; 1545 1546 /* 1547 * The control handler and the subdev state use the same mutex and the 1548 * mutex is guaranteed to be locked: 1549 * - by the core when s_ctrl is called int the VIDIOC_S_CTRL call path 1550 * - by the driver when s_ctrl is called in the s_stream(1) call path 1551 */ 1552 state = v4l2_subdev_get_locked_active_state(&ov8858->subdev); 1553 format = v4l2_subdev_state_get_format(state, 0); 1554 1555 /* Propagate change of current control to all related controls */ 1556 switch (ctrl->id) { 1557 case V4L2_CID_VBLANK: 1558 /* Update max exposure while meeting expected vblanking */ 1559 max_exp = format->height + ctrl->val - OV8858_EXPOSURE_MARGIN; 1560 __v4l2_ctrl_modify_range(ov8858->exposure, 1561 ov8858->exposure->minimum, max_exp, 1562 ov8858->exposure->step, 1563 ov8858->exposure->default_value); 1564 break; 1565 } 1566 1567 if (!pm_runtime_get_if_in_use(&client->dev)) 1568 return 0; 1569 1570 switch (ctrl->id) { 1571 case V4L2_CID_EXPOSURE: 1572 /* 4 least significant bits of exposure are fractional part */ 1573 ret = ov8858_write(ov8858, OV8858_REG_LONG_EXPO, 1574 ctrl->val << 4, NULL); 1575 break; 1576 case V4L2_CID_ANALOGUE_GAIN: 1577 ret = ov8858_write(ov8858, OV8858_REG_LONG_GAIN, 1578 ctrl->val, NULL); 1579 break; 1580 case V4L2_CID_DIGITAL_GAIN: 1581 /* 1582 * Digital gain is assembled as: 1583 * 0x350a[7:0] = dgain[13:6] 1584 * 0x350b[5:0] = dgain[5:0] 1585 * Reassemble the control value to write it in one go. 1586 */ 1587 digi_gain = (ctrl->val & OV8858_LONG_DIGIGAIN_L_MASK) 1588 | ((ctrl->val & OV8858_LONG_DIGIGAIN_H_MASK) << 1589 OV8858_LONG_DIGIGAIN_H_SHIFT); 1590 ret = ov8858_write(ov8858, OV8858_REG_LONG_DIGIGAIN, 1591 digi_gain, NULL); 1592 break; 1593 case V4L2_CID_VBLANK: 1594 ret = ov8858_write(ov8858, OV8858_REG_VTS, 1595 ctrl->val + format->height, NULL); 1596 break; 1597 case V4L2_CID_TEST_PATTERN: 1598 ret = ov8858_enable_test_pattern(ov8858, ctrl->val); 1599 break; 1600 default: 1601 ret = -EINVAL; 1602 dev_warn(&client->dev, "%s Unhandled id: 0x%x\n", 1603 __func__, ctrl->id); 1604 break; 1605 } 1606 1607 pm_runtime_put(&client->dev); 1608 1609 return ret; 1610 } 1611 1612 static const struct v4l2_ctrl_ops ov8858_ctrl_ops = { 1613 .s_ctrl = ov8858_set_ctrl, 1614 }; 1615 1616 /* ---------------------------------------------------------------------------- 1617 * Power Management 1618 */ 1619 1620 static int ov8858_power_on(struct ov8858 *ov8858) 1621 { 1622 struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev); 1623 struct device *dev = &client->dev; 1624 unsigned long delay_us; 1625 int ret; 1626 1627 if (clk_get_rate(ov8858->xvclk) != OV8858_XVCLK_FREQ) 1628 dev_warn(dev, "xvclk mismatched, modes are based on 24MHz\n"); 1629 1630 ret = clk_prepare_enable(ov8858->xvclk); 1631 if (ret < 0) { 1632 dev_err(dev, "Failed to enable xvclk\n"); 1633 return ret; 1634 } 1635 1636 ret = regulator_bulk_enable(ARRAY_SIZE(ov8858_supply_names), 1637 ov8858->supplies); 1638 if (ret < 0) { 1639 dev_err(dev, "Failed to enable regulators\n"); 1640 goto disable_clk; 1641 } 1642 1643 /* 1644 * The chip manual only suggests 8192 cycles prior to first SCCB 1645 * transaction, but a double sleep between the release of gpios 1646 * helps with sporadic failures observed at probe time. 1647 */ 1648 delay_us = DIV_ROUND_UP(8192, OV8858_XVCLK_FREQ / 1000 / 1000); 1649 1650 gpiod_set_value_cansleep(ov8858->reset_gpio, 0); 1651 fsleep(delay_us); 1652 gpiod_set_value_cansleep(ov8858->pwdn_gpio, 0); 1653 fsleep(delay_us); 1654 1655 return 0; 1656 1657 disable_clk: 1658 clk_disable_unprepare(ov8858->xvclk); 1659 1660 return ret; 1661 } 1662 1663 static void ov8858_power_off(struct ov8858 *ov8858) 1664 { 1665 gpiod_set_value_cansleep(ov8858->pwdn_gpio, 1); 1666 clk_disable_unprepare(ov8858->xvclk); 1667 gpiod_set_value_cansleep(ov8858->reset_gpio, 1); 1668 1669 regulator_bulk_disable(ARRAY_SIZE(ov8858_supply_names), 1670 ov8858->supplies); 1671 } 1672 1673 static int ov8858_runtime_resume(struct device *dev) 1674 { 1675 struct i2c_client *client = to_i2c_client(dev); 1676 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1677 struct ov8858 *ov8858 = sd_to_ov8858(sd); 1678 1679 return ov8858_power_on(ov8858); 1680 } 1681 1682 static int ov8858_runtime_suspend(struct device *dev) 1683 { 1684 struct i2c_client *client = to_i2c_client(dev); 1685 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1686 struct ov8858 *ov8858 = sd_to_ov8858(sd); 1687 1688 ov8858_power_off(ov8858); 1689 1690 return 0; 1691 } 1692 1693 static const struct dev_pm_ops ov8858_pm_ops = { 1694 SET_RUNTIME_PM_OPS(ov8858_runtime_suspend, 1695 ov8858_runtime_resume, NULL) 1696 }; 1697 1698 /* ---------------------------------------------------------------------------- 1699 * Probe and initialization 1700 */ 1701 1702 static int ov8858_init_ctrls(struct ov8858 *ov8858) 1703 { 1704 struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev); 1705 struct v4l2_ctrl_handler *handler = &ov8858->ctrl_handler; 1706 const struct ov8858_mode *mode = &ov8858_modes[0]; 1707 struct v4l2_fwnode_device_properties props; 1708 s64 exposure_max, vblank_def; 1709 unsigned int pixel_rate; 1710 struct v4l2_ctrl *ctrl; 1711 u32 h_blank; 1712 int ret; 1713 1714 ret = v4l2_ctrl_handler_init(handler, 10); 1715 if (ret) 1716 return ret; 1717 1718 ctrl = v4l2_ctrl_new_int_menu(handler, NULL, V4L2_CID_LINK_FREQ, 1719 0, 0, link_freq_menu_items); 1720 if (ctrl) 1721 ctrl->flags |= V4L2_CTRL_FLAG_READ_ONLY; 1722 1723 /* pixel rate = link frequency * 2 * lanes / bpp */ 1724 pixel_rate = OV8858_LINK_FREQ * 2 * ov8858->num_lanes / 10; 1725 v4l2_ctrl_new_std(handler, NULL, V4L2_CID_PIXEL_RATE, 1726 0, pixel_rate, 1, pixel_rate); 1727 1728 h_blank = mode->hts_def - mode->width; 1729 ov8858->hblank = v4l2_ctrl_new_std(handler, NULL, V4L2_CID_HBLANK, 1730 h_blank, h_blank, 1, h_blank); 1731 if (ov8858->hblank) 1732 ov8858->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; 1733 1734 vblank_def = mode->vts_def - mode->height; 1735 ov8858->vblank = v4l2_ctrl_new_std(handler, &ov8858_ctrl_ops, 1736 V4L2_CID_VBLANK, vblank_def, 1737 OV8858_VTS_MAX - mode->height, 1738 1, vblank_def); 1739 1740 exposure_max = mode->vts_def - OV8858_EXPOSURE_MARGIN; 1741 ov8858->exposure = v4l2_ctrl_new_std(handler, &ov8858_ctrl_ops, 1742 V4L2_CID_EXPOSURE, 1743 OV8858_EXPOSURE_MIN, 1744 exposure_max, OV8858_EXPOSURE_STEP, 1745 mode->exp_def); 1746 1747 v4l2_ctrl_new_std(handler, &ov8858_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, 1748 OV8858_LONG_GAIN_MIN, OV8858_LONG_GAIN_MAX, 1749 OV8858_LONG_GAIN_STEP, OV8858_LONG_GAIN_DEFAULT); 1750 1751 v4l2_ctrl_new_std(handler, &ov8858_ctrl_ops, V4L2_CID_DIGITAL_GAIN, 1752 OV8858_LONG_DIGIGAIN_MIN, OV8858_LONG_DIGIGAIN_MAX, 1753 OV8858_LONG_DIGIGAIN_STEP, 1754 OV8858_LONG_DIGIGAIN_DEFAULT); 1755 1756 v4l2_ctrl_new_std_menu_items(handler, &ov8858_ctrl_ops, 1757 V4L2_CID_TEST_PATTERN, 1758 ARRAY_SIZE(ov8858_test_pattern_menu) - 1, 1759 0, 0, ov8858_test_pattern_menu); 1760 1761 if (handler->error) { 1762 ret = handler->error; 1763 goto err_free_handler; 1764 } 1765 1766 ret = v4l2_fwnode_device_parse(&client->dev, &props); 1767 if (ret) 1768 goto err_free_handler; 1769 1770 ret = v4l2_ctrl_new_fwnode_properties(handler, &ov8858_ctrl_ops, 1771 &props); 1772 if (ret) 1773 goto err_free_handler; 1774 1775 ov8858->subdev.ctrl_handler = handler; 1776 1777 return 0; 1778 1779 err_free_handler: 1780 dev_err(&client->dev, "Failed to init controls: %d\n", ret); 1781 v4l2_ctrl_handler_free(handler); 1782 1783 return ret; 1784 } 1785 1786 static int ov8858_check_sensor_id(struct ov8858 *ov8858) 1787 { 1788 struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev); 1789 u32 id = 0; 1790 int ret; 1791 1792 ret = ov8858_read(ov8858, OV8858_REG_CHIP_ID, &id); 1793 if (ret) 1794 return ret; 1795 1796 if (id != OV8858_CHIP_ID) { 1797 dev_err(&client->dev, "Unexpected sensor id 0x%x\n", id); 1798 return -ENODEV; 1799 } 1800 1801 ret = ov8858_read(ov8858, OV8858_REG_SUB_ID, &id); 1802 if (ret) 1803 return ret; 1804 1805 dev_info(&client->dev, "Detected OV8858 sensor, revision 0x%x\n", id); 1806 1807 if (id == OV8858_R2A) { 1808 /* R2A supports 2 and 4 lanes modes. */ 1809 ov8858->global_regs = ov8858->num_lanes == 4 1810 ? ov8858_global_regs_r2a_4lane 1811 : ov8858_global_regs_r2a_2lane; 1812 } else if (ov8858->num_lanes == 2) { 1813 /* 1814 * R1A only supports 2 lanes mode and it's only partially 1815 * supported. 1816 */ 1817 ov8858->global_regs = ov8858_global_regs_r1a; 1818 dev_warn(&client->dev, "R1A may not work well!\n"); 1819 } else { 1820 dev_err(&client->dev, 1821 "Unsupported number of data lanes for R1A revision.\n"); 1822 return -EINVAL; 1823 } 1824 1825 return 0; 1826 } 1827 1828 static int ov8858_configure_regulators(struct ov8858 *ov8858) 1829 { 1830 struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev); 1831 unsigned int i; 1832 1833 for (i = 0; i < ARRAY_SIZE(ov8858_supply_names); i++) 1834 ov8858->supplies[i].supply = ov8858_supply_names[i]; 1835 1836 return devm_regulator_bulk_get(&client->dev, 1837 ARRAY_SIZE(ov8858_supply_names), 1838 ov8858->supplies); 1839 } 1840 1841 static int ov8858_parse_of(struct ov8858 *ov8858) 1842 { 1843 struct v4l2_fwnode_endpoint vep = { .bus_type = V4L2_MBUS_CSI2_DPHY }; 1844 struct i2c_client *client = v4l2_get_subdevdata(&ov8858->subdev); 1845 struct device *dev = &client->dev; 1846 struct fwnode_handle *endpoint; 1847 int ret; 1848 1849 endpoint = fwnode_graph_get_next_endpoint(dev_fwnode(dev), NULL); 1850 if (!endpoint) { 1851 dev_err(dev, "Failed to get endpoint\n"); 1852 return -EINVAL; 1853 } 1854 1855 ret = v4l2_fwnode_endpoint_parse(endpoint, &vep); 1856 fwnode_handle_put(endpoint); 1857 if (ret) { 1858 dev_err(dev, "Failed to parse endpoint: %d\n", ret); 1859 return ret; 1860 } 1861 1862 ov8858->num_lanes = vep.bus.mipi_csi2.num_data_lanes; 1863 switch (ov8858->num_lanes) { 1864 case 4: 1865 case 2: 1866 break; 1867 default: 1868 dev_err(dev, "Unsupported number of data lanes %u\n", 1869 ov8858->num_lanes); 1870 return -EINVAL; 1871 } 1872 1873 return 0; 1874 } 1875 1876 static int ov8858_probe(struct i2c_client *client) 1877 { 1878 struct device *dev = &client->dev; 1879 struct v4l2_subdev *sd; 1880 struct ov8858 *ov8858; 1881 int ret; 1882 1883 ov8858 = devm_kzalloc(dev, sizeof(*ov8858), GFP_KERNEL); 1884 if (!ov8858) 1885 return -ENOMEM; 1886 1887 ov8858->xvclk = devm_clk_get(dev, "xvclk"); 1888 if (IS_ERR(ov8858->xvclk)) 1889 return dev_err_probe(dev, PTR_ERR(ov8858->xvclk), 1890 "Failed to get xvclk\n"); 1891 1892 ov8858->reset_gpio = devm_gpiod_get_optional(dev, "reset", 1893 GPIOD_OUT_HIGH); 1894 if (IS_ERR(ov8858->reset_gpio)) 1895 return dev_err_probe(dev, PTR_ERR(ov8858->reset_gpio), 1896 "Failed to get reset gpio\n"); 1897 1898 ov8858->pwdn_gpio = devm_gpiod_get_optional(dev, "powerdown", 1899 GPIOD_OUT_HIGH); 1900 if (IS_ERR(ov8858->pwdn_gpio)) 1901 return dev_err_probe(dev, PTR_ERR(ov8858->pwdn_gpio), 1902 "Failed to get powerdown gpio\n"); 1903 1904 v4l2_i2c_subdev_init(&ov8858->subdev, client, &ov8858_subdev_ops); 1905 ov8858->subdev.internal_ops = &ov8858_internal_ops; 1906 1907 ret = ov8858_configure_regulators(ov8858); 1908 if (ret) 1909 return dev_err_probe(dev, ret, "Failed to get regulators\n"); 1910 1911 ret = ov8858_parse_of(ov8858); 1912 if (ret) 1913 return ret; 1914 1915 ret = ov8858_init_ctrls(ov8858); 1916 if (ret) 1917 return ret; 1918 1919 sd = &ov8858->subdev; 1920 sd->flags |= V4L2_SUBDEV_FL_HAS_DEVNODE | V4L2_SUBDEV_FL_HAS_EVENTS; 1921 ov8858->pad.flags = MEDIA_PAD_FL_SOURCE; 1922 sd->entity.function = MEDIA_ENT_F_CAM_SENSOR; 1923 ret = media_entity_pads_init(&sd->entity, 1, &ov8858->pad); 1924 if (ret < 0) 1925 goto err_free_handler; 1926 1927 sd->state_lock = ov8858->ctrl_handler.lock; 1928 ret = v4l2_subdev_init_finalize(sd); 1929 if (ret < 0) { 1930 dev_err(&client->dev, "Subdev initialization error %d\n", ret); 1931 goto err_clean_entity; 1932 } 1933 1934 ret = ov8858_power_on(ov8858); 1935 if (ret) 1936 goto err_clean_entity; 1937 1938 pm_runtime_set_active(dev); 1939 pm_runtime_get_noresume(dev); 1940 pm_runtime_enable(dev); 1941 1942 ret = ov8858_check_sensor_id(ov8858); 1943 if (ret) 1944 goto err_power_off; 1945 1946 pm_runtime_set_autosuspend_delay(dev, 1000); 1947 pm_runtime_use_autosuspend(dev); 1948 1949 ret = v4l2_async_register_subdev_sensor(sd); 1950 if (ret) { 1951 dev_err(dev, "v4l2 async register subdev failed\n"); 1952 goto err_power_off; 1953 } 1954 1955 pm_runtime_mark_last_busy(dev); 1956 pm_runtime_put_autosuspend(dev); 1957 1958 return 0; 1959 1960 err_power_off: 1961 pm_runtime_disable(dev); 1962 pm_runtime_put_noidle(dev); 1963 ov8858_power_off(ov8858); 1964 err_clean_entity: 1965 media_entity_cleanup(&sd->entity); 1966 err_free_handler: 1967 v4l2_ctrl_handler_free(&ov8858->ctrl_handler); 1968 1969 return ret; 1970 } 1971 1972 static void ov8858_remove(struct i2c_client *client) 1973 { 1974 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1975 struct ov8858 *ov8858 = sd_to_ov8858(sd); 1976 1977 v4l2_async_unregister_subdev(sd); 1978 media_entity_cleanup(&sd->entity); 1979 v4l2_ctrl_handler_free(&ov8858->ctrl_handler); 1980 1981 pm_runtime_disable(&client->dev); 1982 if (!pm_runtime_status_suspended(&client->dev)) 1983 ov8858_power_off(ov8858); 1984 pm_runtime_set_suspended(&client->dev); 1985 } 1986 1987 static const struct of_device_id ov8858_of_match[] = { 1988 { .compatible = "ovti,ov8858" }, 1989 { /* sentinel */ }, 1990 }; 1991 MODULE_DEVICE_TABLE(of, ov8858_of_match); 1992 1993 static struct i2c_driver ov8858_i2c_driver = { 1994 .driver = { 1995 .name = "ov8858", 1996 .pm = &ov8858_pm_ops, 1997 .of_match_table = ov8858_of_match, 1998 }, 1999 .probe = ov8858_probe, 2000 .remove = ov8858_remove, 2001 }; 2002 2003 module_i2c_driver(ov8858_i2c_driver); 2004 2005 MODULE_DESCRIPTION("OmniVision OV8858 sensor driver"); 2006 MODULE_LICENSE("GPL"); 2007