2492 lines · c
1// SPDX-License-Identifier: GPL-2.02// Copyright (c) 2019 Intel Corporation.3 4#include <linux/unaligned.h>5#include <linux/acpi.h>6#include <linux/clk.h>7#include <linux/delay.h>8#include <linux/gpio/consumer.h>9#include <linux/i2c.h>10#include <linux/module.h>11#include <linux/pm_runtime.h>12#include <linux/regulator/consumer.h>13#include <media/v4l2-ctrls.h>14#include <media/v4l2-device.h>15#include <media/v4l2-fwnode.h>16 17#define OV8856_REG_VALUE_08BIT 118#define OV8856_REG_VALUE_16BIT 219#define OV8856_REG_VALUE_24BIT 320 21#define OV8856_SCLK 144000000ULL22#define OV8856_XVCLK_19_2 1920000023#define OV8856_DATA_LANES 424#define OV8856_RGB_DEPTH 1025 26#define OV8856_REG_CHIP_ID 0x300a27#define OV8856_CHIP_ID 0x00885a28 29#define OV8856_REG_MODE_SELECT 0x010030#define OV8856_MODE_STANDBY 0x0031#define OV8856_MODE_STREAMING 0x0132 33/* module revisions */34#define OV8856_2A_MODULE 0x0135#define OV8856_1B_MODULE 0x0236 37/* the OTP read-out buffer is at 0x7000 and 0xf is the offset38 * of the byte in the OTP that means the module revision39 */40#define OV8856_MODULE_REVISION 0x700f41#define OV8856_OTP_MODE_CTRL 0x3d8442#define OV8856_OTP_LOAD_CTRL 0x3d8143#define OV8856_OTP_MODE_AUTO 0x0044#define OV8856_OTP_LOAD_CTRL_ENABLE BIT(0)45 46/* vertical-timings from sensor */47#define OV8856_REG_VTS 0x380e48#define OV8856_VTS_MAX 0x7fff49 50/* horizontal-timings from sensor */51#define OV8856_REG_HTS 0x380c52 53/* Exposure controls from sensor */54#define OV8856_REG_EXPOSURE 0x350055#define OV8856_EXPOSURE_MIN 656#define OV8856_EXPOSURE_MAX_MARGIN 657#define OV8856_EXPOSURE_STEP 158 59/* Analog gain controls from sensor */60#define OV8856_REG_ANALOG_GAIN 0x350861#define OV8856_ANAL_GAIN_MIN 12862#define OV8856_ANAL_GAIN_MAX 204763#define OV8856_ANAL_GAIN_STEP 164 65/* Digital gain controls from sensor */66#define OV8856_REG_DIGITAL_GAIN 0x350a67#define OV8856_REG_MWB_R_GAIN 0x501968#define OV8856_REG_MWB_G_GAIN 0x501b69#define OV8856_REG_MWB_B_GAIN 0x501d70#define OV8856_DGTL_GAIN_MIN 071#define OV8856_DGTL_GAIN_MAX 409572#define OV8856_DGTL_GAIN_STEP 173#define OV8856_DGTL_GAIN_DEFAULT 102474 75/* Test Pattern Control */76#define OV8856_REG_TEST_PATTERN 0x5e0077#define OV8856_TEST_PATTERN_ENABLE BIT(7)78#define OV8856_TEST_PATTERN_BAR_SHIFT 279 80#define NUM_REGS 781#define NUM_MODE_REGS 18782#define NUM_MODE_REGS_2 20083 84/* Flip Mirror Controls from sensor */85#define OV8856_REG_FORMAT1 0x382086#define OV8856_REG_FORMAT2 0x382187#define OV8856_REG_FORMAT1_OP_1 BIT(1)88#define OV8856_REG_FORMAT1_OP_2 BIT(2)89#define OV8856_REG_FORMAT1_OP_3 BIT(6)90#define OV8856_REG_FORMAT2_OP_1 BIT(1)91#define OV8856_REG_FORMAT2_OP_2 BIT(2)92#define OV8856_REG_FORMAT2_OP_3 BIT(6)93#define OV8856_REG_FLIP_OPT_1 0x376b94#define OV8856_REG_FLIP_OPT_2 0x500195#define OV8856_REG_FLIP_OPT_3 0x502e96#define OV8856_REG_MIRROR_OPT_1 0x500497#define OV8856_REG_FLIP_OP_0 BIT(0)98#define OV8856_REG_FLIP_OP_1 BIT(1)99#define OV8856_REG_FLIP_OP_2 BIT(2)100#define OV8856_REG_MIRROR_OP_1 BIT(1)101#define OV8856_REG_MIRROR_OP_2 BIT(2)102 103#define to_ov8856(_sd) container_of(_sd, struct ov8856, sd)104 105static const char * const ov8856_supply_names[] = {106 "dovdd", /* Digital I/O power */107 "avdd", /* Analog power */108 "dvdd", /* Digital core power */109};110 111enum {112 OV8856_MEDIA_BUS_FMT_SBGGR10_1X10,113 OV8856_MEDIA_BUS_FMT_SGRBG10_1X10,114};115 116struct ov8856_reg {117 u16 address;118 u8 val;119};120 121struct ov8856_reg_list {122 u32 num_of_regs;123 const struct ov8856_reg *regs;124};125 126struct ov8856_link_freq_config {127 const struct ov8856_reg_list reg_list;128};129 130struct ov8856_mode {131 /* Frame width in pixels */132 u32 width;133 134 /* Frame height in pixels */135 u32 height;136 137 /* Horizontal timining size */138 u32 hts;139 140 /* Default vertical timining size */141 u32 vts_def;142 143 /* Min vertical timining size */144 u32 vts_min;145 146 /* Link frequency needed for this resolution */147 u32 link_freq_index;148 149 /* Sensor register settings for this resolution */150 const struct ov8856_reg_list reg_list;151 152 /* Number of data lanes */153 u8 data_lanes;154 155 /* Default MEDIA_BUS_FMT for this mode */156 u32 default_mbus_index;157};158 159struct ov8856_mipi_data_rates {160 const struct ov8856_reg regs_0[NUM_REGS];161 const struct ov8856_reg regs_1[NUM_REGS];162};163 164static const struct ov8856_mipi_data_rates mipi_data_rate_lane_2 = {165 //mipi_data_rate_1440mbps166 {167 {0x0103, 0x01},168 {0x0100, 0x00},169 {0x0302, 0x43},170 {0x0303, 0x00},171 {0x030b, 0x02},172 {0x030d, 0x4b},173 {0x031e, 0x0c}174 },175 //mipi_data_rate_720mbps176 {177 {0x0103, 0x01},178 {0x0100, 0x00},179 {0x0302, 0x4b},180 {0x0303, 0x01},181 {0x030b, 0x02},182 {0x030d, 0x4b},183 {0x031e, 0x0c}184 }185};186 187static const struct ov8856_mipi_data_rates mipi_data_rate_lane_4 = {188 //mipi_data_rate_720mbps189 {190 {0x0103, 0x01},191 {0x0100, 0x00},192 {0x0302, 0x4b},193 {0x0303, 0x01},194 {0x030b, 0x02},195 {0x030d, 0x4b},196 {0x031e, 0x0c}197 },198 //mipi_data_rate_360mbps199 {200 {0x0103, 0x01},201 {0x0100, 0x00},202 {0x0302, 0x4b},203 {0x0303, 0x03},204 {0x030b, 0x02},205 {0x030d, 0x4b},206 {0x031e, 0x0c}207 }208};209 210static const struct ov8856_reg lane_2_mode_3280x2464[] = {211 /* 3280x2464 resolution */212 {0x3000, 0x20},213 {0x3003, 0x08},214 {0x300e, 0x20},215 {0x3010, 0x00},216 {0x3015, 0x84},217 {0x3018, 0x32},218 {0x3021, 0x23},219 {0x3033, 0x24},220 {0x3500, 0x00},221 {0x3501, 0x9a},222 {0x3502, 0x20},223 {0x3503, 0x08},224 {0x3505, 0x83},225 {0x3508, 0x01},226 {0x3509, 0x80},227 {0x350c, 0x00},228 {0x350d, 0x80},229 {0x350e, 0x04},230 {0x350f, 0x00},231 {0x3510, 0x00},232 {0x3511, 0x02},233 {0x3512, 0x00},234 {0x3600, 0x72},235 {0x3601, 0x40},236 {0x3602, 0x30},237 {0x3610, 0xc5},238 {0x3611, 0x58},239 {0x3612, 0x5c},240 {0x3613, 0xca},241 {0x3614, 0x50},242 {0x3628, 0xff},243 {0x3629, 0xff},244 {0x362a, 0xff},245 {0x3633, 0x10},246 {0x3634, 0x10},247 {0x3635, 0x10},248 {0x3636, 0x10},249 {0x3663, 0x08},250 {0x3669, 0x34},251 {0x366e, 0x10},252 {0x3706, 0x86},253 {0x370b, 0x7e},254 {0x3714, 0x23},255 {0x3730, 0x12},256 {0x3733, 0x10},257 {0x3764, 0x00},258 {0x3765, 0x00},259 {0x3769, 0x62},260 {0x376a, 0x2a},261 {0x376b, 0x30},262 {0x3780, 0x00},263 {0x3781, 0x24},264 {0x3782, 0x00},265 {0x3783, 0x23},266 {0x3798, 0x2f},267 {0x37a1, 0x60},268 {0x37a8, 0x6a},269 {0x37ab, 0x3f},270 {0x37c2, 0x04},271 {0x37c3, 0xf1},272 {0x37c9, 0x80},273 {0x37cb, 0x16},274 {0x37cc, 0x16},275 {0x37cd, 0x16},276 {0x37ce, 0x16},277 {0x3800, 0x00},278 {0x3801, 0x00},279 {0x3802, 0x00},280 {0x3803, 0x06},281 {0x3804, 0x0c},282 {0x3805, 0xdf},283 {0x3806, 0x09},284 {0x3807, 0xa7},285 {0x3808, 0x0c},286 {0x3809, 0xd0},287 {0x380a, 0x09},288 {0x380b, 0xa0},289 {0x380c, 0x07},290 {0x380d, 0x88},291 {0x380e, 0x09},292 {0x380f, 0xb8},293 {0x3810, 0x00},294 {0x3811, 0x00},295 {0x3812, 0x00},296 {0x3813, 0x01},297 {0x3814, 0x01},298 {0x3815, 0x01},299 {0x3816, 0x00},300 {0x3817, 0x00},301 {0x3818, 0x00},302 {0x3819, 0x00},303 {0x3820, 0x80},304 {0x3821, 0x46},305 {0x382a, 0x01},306 {0x382b, 0x01},307 {0x3830, 0x06},308 {0x3836, 0x02},309 {0x3837, 0x10},310 {0x3862, 0x04},311 {0x3863, 0x08},312 {0x3cc0, 0x33},313 {0x3d85, 0x14},314 {0x3d8c, 0x73},315 {0x3d8d, 0xde},316 {0x4001, 0xe0},317 {0x4003, 0x40},318 {0x4008, 0x00},319 {0x4009, 0x0b},320 {0x400a, 0x00},321 {0x400b, 0x84},322 {0x400f, 0x80},323 {0x4010, 0xf0},324 {0x4011, 0xff},325 {0x4012, 0x02},326 {0x4013, 0x01},327 {0x4014, 0x01},328 {0x4015, 0x01},329 {0x4042, 0x00},330 {0x4043, 0x80},331 {0x4044, 0x00},332 {0x4045, 0x80},333 {0x4046, 0x00},334 {0x4047, 0x80},335 {0x4048, 0x00},336 {0x4049, 0x80},337 {0x4041, 0x03},338 {0x404c, 0x20},339 {0x404d, 0x00},340 {0x404e, 0x20},341 {0x4203, 0x80},342 {0x4307, 0x30},343 {0x4317, 0x00},344 {0x4503, 0x08},345 {0x4601, 0x80},346 {0x4800, 0x44},347 {0x4816, 0x53},348 {0x481b, 0x58},349 {0x481f, 0x27},350 {0x4837, 0x0c},351 {0x483c, 0x0f},352 {0x484b, 0x05},353 {0x5000, 0x57},354 {0x5001, 0x0a},355 {0x5004, 0x06},356 {0x502e, 0x03},357 {0x5030, 0x41},358 {0x5795, 0x02},359 {0x5796, 0x20},360 {0x5797, 0x20},361 {0x5798, 0xd5},362 {0x5799, 0xd5},363 {0x579a, 0x00},364 {0x579b, 0x50},365 {0x579c, 0x00},366 {0x579d, 0x2c},367 {0x579e, 0x0c},368 {0x579f, 0x40},369 {0x57a0, 0x09},370 {0x57a1, 0x40},371 {0x5780, 0x14},372 {0x5781, 0x0f},373 {0x5782, 0x44},374 {0x5783, 0x02},375 {0x5784, 0x01},376 {0x5785, 0x01},377 {0x5786, 0x00},378 {0x5787, 0x04},379 {0x5788, 0x02},380 {0x5789, 0x0f},381 {0x578a, 0xfd},382 {0x578b, 0xf5},383 {0x578c, 0xf5},384 {0x578d, 0x03},385 {0x578e, 0x08},386 {0x578f, 0x0c},387 {0x5790, 0x08},388 {0x5791, 0x04},389 {0x5792, 0x00},390 {0x5793, 0x52},391 {0x5794, 0xa3},392 {0x59f8, 0x3d},393 {0x5a08, 0x02},394 {0x5b00, 0x02},395 {0x5b01, 0x10},396 {0x5b02, 0x03},397 {0x5b03, 0xcf},398 {0x5b05, 0x6c},399 {0x5e00, 0x00}400};401 402static const struct ov8856_reg lane_2_mode_1640x1232[] = {403 /* 1640x1232 resolution */404 {0x3000, 0x20},405 {0x3003, 0x08},406 {0x300e, 0x20},407 {0x3010, 0x00},408 {0x3015, 0x84},409 {0x3018, 0x32},410 {0x3021, 0x23},411 {0x3033, 0x24},412 {0x3500, 0x00},413 {0x3501, 0x4c},414 {0x3502, 0xe0},415 {0x3503, 0x08},416 {0x3505, 0x83},417 {0x3508, 0x01},418 {0x3509, 0x80},419 {0x350c, 0x00},420 {0x350d, 0x80},421 {0x350e, 0x04},422 {0x350f, 0x00},423 {0x3510, 0x00},424 {0x3511, 0x02},425 {0x3512, 0x00},426 {0x3600, 0x72},427 {0x3601, 0x40},428 {0x3602, 0x30},429 {0x3610, 0xc5},430 {0x3611, 0x58},431 {0x3612, 0x5c},432 {0x3613, 0xca},433 {0x3614, 0x50},434 {0x3628, 0xff},435 {0x3629, 0xff},436 {0x362a, 0xff},437 {0x3633, 0x10},438 {0x3634, 0x10},439 {0x3635, 0x10},440 {0x3636, 0x10},441 {0x3663, 0x08},442 {0x3669, 0x34},443 {0x366e, 0x08},444 {0x3706, 0x86},445 {0x370b, 0x7e},446 {0x3714, 0x27},447 {0x3730, 0x12},448 {0x3733, 0x10},449 {0x3764, 0x00},450 {0x3765, 0x00},451 {0x3769, 0x62},452 {0x376a, 0x2a},453 {0x376b, 0x30},454 {0x3780, 0x00},455 {0x3781, 0x24},456 {0x3782, 0x00},457 {0x3783, 0x23},458 {0x3798, 0x2f},459 {0x37a1, 0x60},460 {0x37a8, 0x6a},461 {0x37ab, 0x3f},462 {0x37c2, 0x14},463 {0x37c3, 0xf1},464 {0x37c9, 0x80},465 {0x37cb, 0x16},466 {0x37cc, 0x16},467 {0x37cd, 0x16},468 {0x37ce, 0x16},469 {0x3800, 0x00},470 {0x3801, 0x00},471 {0x3802, 0x00},472 {0x3803, 0x00},473 {0x3804, 0x0c},474 {0x3805, 0xdf},475 {0x3806, 0x09},476 {0x3807, 0xaf},477 {0x3808, 0x06},478 {0x3809, 0x68},479 {0x380a, 0x04},480 {0x380b, 0xd0},481 {0x380c, 0x0c},482 {0x380d, 0x60},483 {0x380e, 0x05},484 {0x380f, 0xea},485 {0x3810, 0x00},486 {0x3811, 0x04},487 {0x3812, 0x00},488 {0x3813, 0x05},489 {0x3814, 0x03},490 {0x3815, 0x01},491 {0x3816, 0x00},492 {0x3817, 0x00},493 {0x3818, 0x00},494 {0x3819, 0x00},495 {0x3820, 0x90},496 {0x3821, 0x67},497 {0x382a, 0x03},498 {0x382b, 0x01},499 {0x3830, 0x06},500 {0x3836, 0x02},501 {0x3837, 0x10},502 {0x3862, 0x04},503 {0x3863, 0x08},504 {0x3cc0, 0x33},505 {0x3d85, 0x14},506 {0x3d8c, 0x73},507 {0x3d8d, 0xde},508 {0x4001, 0xe0},509 {0x4003, 0x40},510 {0x4008, 0x00},511 {0x4009, 0x05},512 {0x400a, 0x00},513 {0x400b, 0x84},514 {0x400f, 0x80},515 {0x4010, 0xf0},516 {0x4011, 0xff},517 {0x4012, 0x02},518 {0x4013, 0x01},519 {0x4014, 0x01},520 {0x4015, 0x01},521 {0x4042, 0x00},522 {0x4043, 0x80},523 {0x4044, 0x00},524 {0x4045, 0x80},525 {0x4046, 0x00},526 {0x4047, 0x80},527 {0x4048, 0x00},528 {0x4049, 0x80},529 {0x4041, 0x03},530 {0x404c, 0x20},531 {0x404d, 0x00},532 {0x404e, 0x20},533 {0x4203, 0x80},534 {0x4307, 0x30},535 {0x4317, 0x00},536 {0x4503, 0x08},537 {0x4601, 0x80},538 {0x4800, 0x44},539 {0x4816, 0x53},540 {0x481b, 0x58},541 {0x481f, 0x27},542 {0x4837, 0x16},543 {0x483c, 0x0f},544 {0x484b, 0x05},545 {0x5000, 0x57},546 {0x5001, 0x0a},547 {0x5004, 0x06},548 {0x502e, 0x03},549 {0x5030, 0x41},550 {0x5795, 0x00},551 {0x5796, 0x10},552 {0x5797, 0x10},553 {0x5798, 0x73},554 {0x5799, 0x73},555 {0x579a, 0x00},556 {0x579b, 0x28},557 {0x579c, 0x00},558 {0x579d, 0x16},559 {0x579e, 0x06},560 {0x579f, 0x20},561 {0x57a0, 0x04},562 {0x57a1, 0xa0},563 {0x5780, 0x14},564 {0x5781, 0x0f},565 {0x5782, 0x44},566 {0x5783, 0x02},567 {0x5784, 0x01},568 {0x5785, 0x01},569 {0x5786, 0x00},570 {0x5787, 0x04},571 {0x5788, 0x02},572 {0x5789, 0x0f},573 {0x578a, 0xfd},574 {0x578b, 0xf5},575 {0x578c, 0xf5},576 {0x578d, 0x03},577 {0x578e, 0x08},578 {0x578f, 0x0c},579 {0x5790, 0x08},580 {0x5791, 0x04},581 {0x5792, 0x00},582 {0x5793, 0x52},583 {0x5794, 0xa3},584 {0x59f8, 0x3d},585 {0x5a08, 0x02},586 {0x5b00, 0x02},587 {0x5b01, 0x10},588 {0x5b02, 0x03},589 {0x5b03, 0xcf},590 {0x5b05, 0x6c},591 {0x5e00, 0x00}592};593 594static const struct ov8856_reg lane_4_mode_3280x2464[] = {595 /* 3280x2464 resolution */596 {0x3000, 0x20},597 {0x3003, 0x08},598 {0x300e, 0x20},599 {0x3010, 0x00},600 {0x3015, 0x84},601 {0x3018, 0x72},602 {0x3021, 0x23},603 {0x3033, 0x24},604 {0x3500, 0x00},605 {0x3501, 0x9a},606 {0x3502, 0x20},607 {0x3503, 0x08},608 {0x3505, 0x83},609 {0x3508, 0x01},610 {0x3509, 0x80},611 {0x350c, 0x00},612 {0x350d, 0x80},613 {0x350e, 0x04},614 {0x350f, 0x00},615 {0x3510, 0x00},616 {0x3511, 0x02},617 {0x3512, 0x00},618 {0x3600, 0x72},619 {0x3601, 0x40},620 {0x3602, 0x30},621 {0x3610, 0xc5},622 {0x3611, 0x58},623 {0x3612, 0x5c},624 {0x3613, 0xca},625 {0x3614, 0x20},626 {0x3628, 0xff},627 {0x3629, 0xff},628 {0x362a, 0xff},629 {0x3633, 0x10},630 {0x3634, 0x10},631 {0x3635, 0x10},632 {0x3636, 0x10},633 {0x3663, 0x08},634 {0x3669, 0x34},635 {0x366e, 0x10},636 {0x3706, 0x86},637 {0x370b, 0x7e},638 {0x3714, 0x23},639 {0x3730, 0x12},640 {0x3733, 0x10},641 {0x3764, 0x00},642 {0x3765, 0x00},643 {0x3769, 0x62},644 {0x376a, 0x2a},645 {0x376b, 0x30},646 {0x3780, 0x00},647 {0x3781, 0x24},648 {0x3782, 0x00},649 {0x3783, 0x23},650 {0x3798, 0x2f},651 {0x37a1, 0x60},652 {0x37a8, 0x6a},653 {0x37ab, 0x3f},654 {0x37c2, 0x04},655 {0x37c3, 0xf1},656 {0x37c9, 0x80},657 {0x37cb, 0x16},658 {0x37cc, 0x16},659 {0x37cd, 0x16},660 {0x37ce, 0x16},661 {0x3800, 0x00},662 {0x3801, 0x00},663 {0x3802, 0x00},664 {0x3803, 0x06},665 {0x3804, 0x0c},666 {0x3805, 0xdf},667 {0x3806, 0x09},668 {0x3807, 0xa7},669 {0x3808, 0x0c},670 {0x3809, 0xd0},671 {0x380a, 0x09},672 {0x380b, 0xa0},673 {0x380c, 0x07},674 {0x380d, 0x88},675 {0x380e, 0x09},676 {0x380f, 0xb8},677 {0x3810, 0x00},678 {0x3811, 0x00},679 {0x3812, 0x00},680 {0x3813, 0x01},681 {0x3814, 0x01},682 {0x3815, 0x01},683 {0x3816, 0x00},684 {0x3817, 0x00},685 {0x3818, 0x00},686 {0x3819, 0x10},687 {0x3820, 0x80},688 {0x3821, 0x46},689 {0x382a, 0x01},690 {0x382b, 0x01},691 {0x3830, 0x06},692 {0x3836, 0x02},693 {0x3862, 0x04},694 {0x3863, 0x08},695 {0x3cc0, 0x33},696 {0x3d85, 0x17},697 {0x3d8c, 0x73},698 {0x3d8d, 0xde},699 {0x4001, 0xe0},700 {0x4003, 0x40},701 {0x4008, 0x00},702 {0x4009, 0x0b},703 {0x400a, 0x00},704 {0x400b, 0x84},705 {0x400f, 0x80},706 {0x4010, 0xf0},707 {0x4011, 0xff},708 {0x4012, 0x02},709 {0x4013, 0x01},710 {0x4014, 0x01},711 {0x4015, 0x01},712 {0x4042, 0x00},713 {0x4043, 0x80},714 {0x4044, 0x00},715 {0x4045, 0x80},716 {0x4046, 0x00},717 {0x4047, 0x80},718 {0x4048, 0x00},719 {0x4049, 0x80},720 {0x4041, 0x03},721 {0x404c, 0x20},722 {0x404d, 0x00},723 {0x404e, 0x20},724 {0x4203, 0x80},725 {0x4307, 0x30},726 {0x4317, 0x00},727 {0x4503, 0x08},728 {0x4601, 0x80},729 {0x4800, 0x44},730 {0x4816, 0x53},731 {0x481b, 0x58},732 {0x481f, 0x27},733 {0x4837, 0x16},734 {0x483c, 0x0f},735 {0x484b, 0x05},736 {0x5000, 0x57},737 {0x5001, 0x0a},738 {0x5004, 0x06},739 {0x502e, 0x03},740 {0x5030, 0x41},741 {0x5780, 0x14},742 {0x5781, 0x0f},743 {0x5782, 0x44},744 {0x5783, 0x02},745 {0x5784, 0x01},746 {0x5785, 0x01},747 {0x5786, 0x00},748 {0x5787, 0x04},749 {0x5788, 0x02},750 {0x5789, 0x0f},751 {0x578a, 0xfd},752 {0x578b, 0xf5},753 {0x578c, 0xf5},754 {0x578d, 0x03},755 {0x578e, 0x08},756 {0x578f, 0x0c},757 {0x5790, 0x08},758 {0x5791, 0x04},759 {0x5792, 0x00},760 {0x5793, 0x52},761 {0x5794, 0xa3},762 {0x5795, 0x02},763 {0x5796, 0x20},764 {0x5797, 0x20},765 {0x5798, 0xd5},766 {0x5799, 0xd5},767 {0x579a, 0x00},768 {0x579b, 0x50},769 {0x579c, 0x00},770 {0x579d, 0x2c},771 {0x579e, 0x0c},772 {0x579f, 0x40},773 {0x57a0, 0x09},774 {0x57a1, 0x40},775 {0x59f8, 0x3d},776 {0x5a08, 0x02},777 {0x5b00, 0x02},778 {0x5b01, 0x10},779 {0x5b02, 0x03},780 {0x5b03, 0xcf},781 {0x5b05, 0x6c},782 {0x5e00, 0x00}783};784 785static const struct ov8856_reg lane_4_mode_1640x1232[] = {786 /* 1640x1232 resolution */787 {0x3000, 0x20},788 {0x3003, 0x08},789 {0x300e, 0x20},790 {0x3010, 0x00},791 {0x3015, 0x84},792 {0x3018, 0x72},793 {0x3021, 0x23},794 {0x3033, 0x24},795 {0x3500, 0x00},796 {0x3501, 0x4c},797 {0x3502, 0xe0},798 {0x3503, 0x08},799 {0x3505, 0x83},800 {0x3508, 0x01},801 {0x3509, 0x80},802 {0x350c, 0x00},803 {0x350d, 0x80},804 {0x350e, 0x04},805 {0x350f, 0x00},806 {0x3510, 0x00},807 {0x3511, 0x02},808 {0x3512, 0x00},809 {0x3600, 0x72},810 {0x3601, 0x40},811 {0x3602, 0x30},812 {0x3610, 0xc5},813 {0x3611, 0x58},814 {0x3612, 0x5c},815 {0x3613, 0xca},816 {0x3614, 0x20},817 {0x3628, 0xff},818 {0x3629, 0xff},819 {0x362a, 0xff},820 {0x3633, 0x10},821 {0x3634, 0x10},822 {0x3635, 0x10},823 {0x3636, 0x10},824 {0x3663, 0x08},825 {0x3669, 0x34},826 {0x366e, 0x08},827 {0x3706, 0x86},828 {0x370b, 0x7e},829 {0x3714, 0x27},830 {0x3730, 0x12},831 {0x3733, 0x10},832 {0x3764, 0x00},833 {0x3765, 0x00},834 {0x3769, 0x62},835 {0x376a, 0x2a},836 {0x376b, 0x30},837 {0x3780, 0x00},838 {0x3781, 0x24},839 {0x3782, 0x00},840 {0x3783, 0x23},841 {0x3798, 0x2f},842 {0x37a1, 0x60},843 {0x37a8, 0x6a},844 {0x37ab, 0x3f},845 {0x37c2, 0x14},846 {0x37c3, 0xf1},847 {0x37c9, 0x80},848 {0x37cb, 0x16},849 {0x37cc, 0x16},850 {0x37cd, 0x16},851 {0x37ce, 0x16},852 {0x3800, 0x00},853 {0x3801, 0x00},854 {0x3802, 0x00},855 {0x3803, 0x00},856 {0x3804, 0x0c},857 {0x3805, 0xdf},858 {0x3806, 0x09},859 {0x3807, 0xaf},860 {0x3808, 0x06},861 {0x3809, 0x68},862 {0x380a, 0x04},863 {0x380b, 0xd0},864 {0x380c, 0x0e},865 {0x380d, 0xec},866 {0x380e, 0x04},867 {0x380f, 0xe8},868 {0x3810, 0x00},869 {0x3811, 0x04},870 {0x3812, 0x00},871 {0x3813, 0x05},872 {0x3814, 0x03},873 {0x3815, 0x01},874 {0x3816, 0x00},875 {0x3817, 0x00},876 {0x3818, 0x00},877 {0x3819, 0x10},878 {0x3820, 0x90},879 {0x3821, 0x67},880 {0x382a, 0x03},881 {0x382b, 0x01},882 {0x3830, 0x06},883 {0x3836, 0x02},884 {0x3862, 0x04},885 {0x3863, 0x08},886 {0x3cc0, 0x33},887 {0x3d85, 0x17},888 {0x3d8c, 0x73},889 {0x3d8d, 0xde},890 {0x4001, 0xe0},891 {0x4003, 0x40},892 {0x4008, 0x00},893 {0x4009, 0x05},894 {0x400a, 0x00},895 {0x400b, 0x84},896 {0x400f, 0x80},897 {0x4010, 0xf0},898 {0x4011, 0xff},899 {0x4012, 0x02},900 {0x4013, 0x01},901 {0x4014, 0x01},902 {0x4015, 0x01},903 {0x4042, 0x00},904 {0x4043, 0x80},905 {0x4044, 0x00},906 {0x4045, 0x80},907 {0x4046, 0x00},908 {0x4047, 0x80},909 {0x4048, 0x00},910 {0x4049, 0x80},911 {0x4041, 0x03},912 {0x404c, 0x20},913 {0x404d, 0x00},914 {0x404e, 0x20},915 {0x4203, 0x80},916 {0x4307, 0x30},917 {0x4317, 0x00},918 {0x4503, 0x08},919 {0x4601, 0x80},920 {0x4800, 0x44},921 {0x4816, 0x53},922 {0x481b, 0x58},923 {0x481f, 0x27},924 {0x4837, 0x16},925 {0x483c, 0x0f},926 {0x484b, 0x05},927 {0x5000, 0x57},928 {0x5001, 0x0a},929 {0x5004, 0x06},930 {0x502e, 0x03},931 {0x5030, 0x41},932 {0x5780, 0x14},933 {0x5781, 0x0f},934 {0x5782, 0x44},935 {0x5783, 0x02},936 {0x5784, 0x01},937 {0x5785, 0x01},938 {0x5786, 0x00},939 {0x5787, 0x04},940 {0x5788, 0x02},941 {0x5789, 0x0f},942 {0x578a, 0xfd},943 {0x578b, 0xf5},944 {0x578c, 0xf5},945 {0x578d, 0x03},946 {0x578e, 0x08},947 {0x578f, 0x0c},948 {0x5790, 0x08},949 {0x5791, 0x04},950 {0x5792, 0x00},951 {0x5793, 0x52},952 {0x5794, 0xa3},953 {0x5795, 0x00},954 {0x5796, 0x10},955 {0x5797, 0x10},956 {0x5798, 0x73},957 {0x5799, 0x73},958 {0x579a, 0x00},959 {0x579b, 0x28},960 {0x579c, 0x00},961 {0x579d, 0x16},962 {0x579e, 0x06},963 {0x579f, 0x20},964 {0x57a0, 0x04},965 {0x57a1, 0xa0},966 {0x59f8, 0x3d},967 {0x5a08, 0x02},968 {0x5b00, 0x02},969 {0x5b01, 0x10},970 {0x5b02, 0x03},971 {0x5b03, 0xcf},972 {0x5b05, 0x6c},973 {0x5e00, 0x00}974};975 976static const struct ov8856_reg lane_4_mode_3264x2448[] = {977 /* 3264x2448 resolution */978 {0x0103, 0x01},979 {0x0302, 0x3c},980 {0x0303, 0x01},981 {0x031e, 0x0c},982 {0x3000, 0x20},983 {0x3003, 0x08},984 {0x300e, 0x20},985 {0x3010, 0x00},986 {0x3015, 0x84},987 {0x3018, 0x72},988 {0x3021, 0x23},989 {0x3033, 0x24},990 {0x3500, 0x00},991 {0x3501, 0x9a},992 {0x3502, 0x20},993 {0x3503, 0x08},994 {0x3505, 0x83},995 {0x3508, 0x01},996 {0x3509, 0x80},997 {0x350c, 0x00},998 {0x350d, 0x80},999 {0x350e, 0x04},1000 {0x350f, 0x00},1001 {0x3510, 0x00},1002 {0x3511, 0x02},1003 {0x3512, 0x00},1004 {0x3600, 0x72},1005 {0x3601, 0x40},1006 {0x3602, 0x30},1007 {0x3610, 0xc5},1008 {0x3611, 0x58},1009 {0x3612, 0x5c},1010 {0x3613, 0xca},1011 {0x3614, 0x60},1012 {0x3628, 0xff},1013 {0x3629, 0xff},1014 {0x362a, 0xff},1015 {0x3633, 0x10},1016 {0x3634, 0x10},1017 {0x3635, 0x10},1018 {0x3636, 0x10},1019 {0x3663, 0x08},1020 {0x3669, 0x34},1021 {0x366d, 0x00},1022 {0x366e, 0x10},1023 {0x3706, 0x86},1024 {0x370b, 0x7e},1025 {0x3714, 0x23},1026 {0x3730, 0x12},1027 {0x3733, 0x10},1028 {0x3764, 0x00},1029 {0x3765, 0x00},1030 {0x3769, 0x62},1031 {0x376a, 0x2a},1032 {0x376b, 0x30},1033 {0x3780, 0x00},1034 {0x3781, 0x24},1035 {0x3782, 0x00},1036 {0x3783, 0x23},1037 {0x3798, 0x2f},1038 {0x37a1, 0x60},1039 {0x37a8, 0x6a},1040 {0x37ab, 0x3f},1041 {0x37c2, 0x04},1042 {0x37c3, 0xf1},1043 {0x37c9, 0x80},1044 {0x37cb, 0x16},1045 {0x37cc, 0x16},1046 {0x37cd, 0x16},1047 {0x37ce, 0x16},1048 {0x3800, 0x00},1049 {0x3801, 0x00},1050 {0x3802, 0x00},1051 {0x3803, 0x0c},1052 {0x3804, 0x0c},1053 {0x3805, 0xdf},1054 {0x3806, 0x09},1055 {0x3807, 0xa3},1056 {0x3808, 0x0c},1057 {0x3809, 0xc0},1058 {0x380a, 0x09},1059 {0x380b, 0x90},1060 {0x380c, 0x07},1061 {0x380d, 0x8c},1062 {0x380e, 0x09},1063 {0x380f, 0xb2},1064 {0x3810, 0x00},1065 {0x3811, 0x04},1066 {0x3812, 0x00},1067 {0x3813, 0x02},1068 {0x3814, 0x01},1069 {0x3815, 0x01},1070 {0x3816, 0x00},1071 {0x3817, 0x00},1072 {0x3818, 0x00},1073 {0x3819, 0x10},1074 {0x3820, 0x80},1075 {0x3821, 0x46},1076 {0x382a, 0x01},1077 {0x382b, 0x01},1078 {0x3830, 0x06},1079 {0x3836, 0x02},1080 {0x3862, 0x04},1081 {0x3863, 0x08},1082 {0x3cc0, 0x33},1083 {0x3d85, 0x17},1084 {0x3d8c, 0x73},1085 {0x3d8d, 0xde},1086 {0x4001, 0xe0},1087 {0x4003, 0x40},1088 {0x4008, 0x00},1089 {0x4009, 0x0b},1090 {0x400a, 0x00},1091 {0x400b, 0x84},1092 {0x400f, 0x80},1093 {0x4010, 0xf0},1094 {0x4011, 0xff},1095 {0x4012, 0x02},1096 {0x4013, 0x01},1097 {0x4014, 0x01},1098 {0x4015, 0x01},1099 {0x4042, 0x00},1100 {0x4043, 0x80},1101 {0x4044, 0x00},1102 {0x4045, 0x80},1103 {0x4046, 0x00},1104 {0x4047, 0x80},1105 {0x4048, 0x00},1106 {0x4049, 0x80},1107 {0x4041, 0x03},1108 {0x404c, 0x20},1109 {0x404d, 0x00},1110 {0x404e, 0x20},1111 {0x4203, 0x80},1112 {0x4307, 0x30},1113 {0x4317, 0x00},1114 {0x4502, 0x50},1115 {0x4503, 0x08},1116 {0x4601, 0x80},1117 {0x4800, 0x44},1118 {0x4816, 0x53},1119 {0x481b, 0x50},1120 {0x481f, 0x27},1121 {0x4823, 0x3c},1122 {0x482b, 0x00},1123 {0x4831, 0x66},1124 {0x4837, 0x16},1125 {0x483c, 0x0f},1126 {0x484b, 0x05},1127 {0x5000, 0x77},1128 {0x5001, 0x0a},1129 {0x5003, 0xc8},1130 {0x5004, 0x04},1131 {0x5006, 0x00},1132 {0x5007, 0x00},1133 {0x502e, 0x03},1134 {0x5030, 0x41},1135 {0x5780, 0x14},1136 {0x5781, 0x0f},1137 {0x5782, 0x44},1138 {0x5783, 0x02},1139 {0x5784, 0x01},1140 {0x5785, 0x01},1141 {0x5786, 0x00},1142 {0x5787, 0x04},1143 {0x5788, 0x02},1144 {0x5789, 0x0f},1145 {0x578a, 0xfd},1146 {0x578b, 0xf5},1147 {0x578c, 0xf5},1148 {0x578d, 0x03},1149 {0x578e, 0x08},1150 {0x578f, 0x0c},1151 {0x5790, 0x08},1152 {0x5791, 0x04},1153 {0x5792, 0x00},1154 {0x5793, 0x52},1155 {0x5794, 0xa3},1156 {0x5795, 0x02},1157 {0x5796, 0x20},1158 {0x5797, 0x20},1159 {0x5798, 0xd5},1160 {0x5799, 0xd5},1161 {0x579a, 0x00},1162 {0x579b, 0x50},1163 {0x579c, 0x00},1164 {0x579d, 0x2c},1165 {0x579e, 0x0c},1166 {0x579f, 0x40},1167 {0x57a0, 0x09},1168 {0x57a1, 0x40},1169 {0x59f8, 0x3d},1170 {0x5a08, 0x02},1171 {0x5b00, 0x02},1172 {0x5b01, 0x10},1173 {0x5b02, 0x03},1174 {0x5b03, 0xcf},1175 {0x5b05, 0x6c},1176 {0x5e00, 0x00},1177 {0x5e10, 0xfc}1178};1179 1180static const struct ov8856_reg lane_4_mode_1632x1224[] = {1181 /* 1632x1224 resolution */1182 {0x0103, 0x01},1183 {0x0302, 0x3c},1184 {0x0303, 0x01},1185 {0x031e, 0x0c},1186 {0x3000, 0x20},1187 {0x3003, 0x08},1188 {0x300e, 0x20},1189 {0x3010, 0x00},1190 {0x3015, 0x84},1191 {0x3018, 0x72},1192 {0x3021, 0x23},1193 {0x3033, 0x24},1194 {0x3500, 0x00},1195 {0x3501, 0x4c},1196 {0x3502, 0xe0},1197 {0x3503, 0x08},1198 {0x3505, 0x83},1199 {0x3508, 0x01},1200 {0x3509, 0x80},1201 {0x350c, 0x00},1202 {0x350d, 0x80},1203 {0x350e, 0x04},1204 {0x350f, 0x00},1205 {0x3510, 0x00},1206 {0x3511, 0x02},1207 {0x3512, 0x00},1208 {0x3600, 0x72},1209 {0x3601, 0x40},1210 {0x3602, 0x30},1211 {0x3610, 0xc5},1212 {0x3611, 0x58},1213 {0x3612, 0x5c},1214 {0x3613, 0xca},1215 {0x3614, 0x60},1216 {0x3628, 0xff},1217 {0x3629, 0xff},1218 {0x362a, 0xff},1219 {0x3633, 0x10},1220 {0x3634, 0x10},1221 {0x3635, 0x10},1222 {0x3636, 0x10},1223 {0x3663, 0x08},1224 {0x3669, 0x34},1225 {0x366d, 0x00},1226 {0x366e, 0x08},1227 {0x3706, 0x86},1228 {0x370b, 0x7e},1229 {0x3714, 0x27},1230 {0x3730, 0x12},1231 {0x3733, 0x10},1232 {0x3764, 0x00},1233 {0x3765, 0x00},1234 {0x3769, 0x62},1235 {0x376a, 0x2a},1236 {0x376b, 0x30},1237 {0x3780, 0x00},1238 {0x3781, 0x24},1239 {0x3782, 0x00},1240 {0x3783, 0x23},1241 {0x3798, 0x2f},1242 {0x37a1, 0x60},1243 {0x37a8, 0x6a},1244 {0x37ab, 0x3f},1245 {0x37c2, 0x14},1246 {0x37c3, 0xf1},1247 {0x37c9, 0x80},1248 {0x37cb, 0x16},1249 {0x37cc, 0x16},1250 {0x37cd, 0x16},1251 {0x37ce, 0x16},1252 {0x3800, 0x00},1253 {0x3801, 0x00},1254 {0x3802, 0x00},1255 {0x3803, 0x0c},1256 {0x3804, 0x0c},1257 {0x3805, 0xdf},1258 {0x3806, 0x09},1259 {0x3807, 0xa3},1260 {0x3808, 0x06},1261 {0x3809, 0x60},1262 {0x380a, 0x04},1263 {0x380b, 0xc8},1264 {0x380c, 0x07},1265 {0x380d, 0x8c},1266 {0x380e, 0x09},1267 {0x380f, 0xb2},1268 {0x3810, 0x00},1269 {0x3811, 0x02},1270 {0x3812, 0x00},1271 {0x3813, 0x02},1272 {0x3814, 0x03},1273 {0x3815, 0x01},1274 {0x3816, 0x00},1275 {0x3817, 0x00},1276 {0x3818, 0x00},1277 {0x3819, 0x10},1278 {0x3820, 0x80},1279 {0x3821, 0x47},1280 {0x382a, 0x03},1281 {0x382b, 0x01},1282 {0x3830, 0x06},1283 {0x3836, 0x02},1284 {0x3862, 0x04},1285 {0x3863, 0x08},1286 {0x3cc0, 0x33},1287 {0x3d85, 0x17},1288 {0x3d8c, 0x73},1289 {0x3d8d, 0xde},1290 {0x4001, 0xe0},1291 {0x4003, 0x40},1292 {0x4008, 0x00},1293 {0x4009, 0x05},1294 {0x400a, 0x00},1295 {0x400b, 0x84},1296 {0x400f, 0x80},1297 {0x4010, 0xf0},1298 {0x4011, 0xff},1299 {0x4012, 0x02},1300 {0x4013, 0x01},1301 {0x4014, 0x01},1302 {0x4015, 0x01},1303 {0x4042, 0x00},1304 {0x4043, 0x80},1305 {0x4044, 0x00},1306 {0x4045, 0x80},1307 {0x4046, 0x00},1308 {0x4047, 0x80},1309 {0x4048, 0x00},1310 {0x4049, 0x80},1311 {0x4041, 0x03},1312 {0x404c, 0x20},1313 {0x404d, 0x00},1314 {0x404e, 0x20},1315 {0x4203, 0x80},1316 {0x4307, 0x30},1317 {0x4317, 0x00},1318 {0x4502, 0x50},1319 {0x4503, 0x08},1320 {0x4601, 0x80},1321 {0x4800, 0x44},1322 {0x4816, 0x53},1323 {0x481b, 0x50},1324 {0x481f, 0x27},1325 {0x4823, 0x3c},1326 {0x482b, 0x00},1327 {0x4831, 0x66},1328 {0x4837, 0x16},1329 {0x483c, 0x0f},1330 {0x484b, 0x05},1331 {0x5000, 0x77},1332 {0x5001, 0x0a},1333 {0x5003, 0xc8},1334 {0x5004, 0x04},1335 {0x5006, 0x00},1336 {0x5007, 0x00},1337 {0x502e, 0x03},1338 {0x5030, 0x41},1339 {0x5795, 0x00},1340 {0x5796, 0x10},1341 {0x5797, 0x10},1342 {0x5798, 0x73},1343 {0x5799, 0x73},1344 {0x579a, 0x00},1345 {0x579b, 0x28},1346 {0x579c, 0x00},1347 {0x579d, 0x16},1348 {0x579e, 0x06},1349 {0x579f, 0x20},1350 {0x57a0, 0x04},1351 {0x57a1, 0xa0},1352 {0x5780, 0x14},1353 {0x5781, 0x0f},1354 {0x5782, 0x44},1355 {0x5783, 0x02},1356 {0x5784, 0x01},1357 {0x5785, 0x01},1358 {0x5786, 0x00},1359 {0x5787, 0x04},1360 {0x5788, 0x02},1361 {0x5789, 0x0f},1362 {0x578a, 0xfd},1363 {0x578b, 0xf5},1364 {0x578c, 0xf5},1365 {0x578d, 0x03},1366 {0x578e, 0x08},1367 {0x578f, 0x0c},1368 {0x5790, 0x08},1369 {0x5791, 0x04},1370 {0x5792, 0x00},1371 {0x5793, 0x52},1372 {0x5794, 0xa3},1373 {0x59f8, 0x3d},1374 {0x5a08, 0x02},1375 {0x5b00, 0x02},1376 {0x5b01, 0x10},1377 {0x5b02, 0x03},1378 {0x5b03, 0xcf},1379 {0x5b05, 0x6c},1380 {0x5e00, 0x00},1381 {0x5e10, 0xfc}1382};1383 1384static const struct ov8856_reg mipi_data_mbus_sbggr10_1x10[] = {1385 {0x3813, 0x02},1386};1387 1388static const struct ov8856_reg mipi_data_mbus_sgrbg10_1x10[] = {1389 {0x3813, 0x01},1390};1391 1392static const u32 ov8856_mbus_codes[] = {1393 MEDIA_BUS_FMT_SBGGR10_1X10,1394 MEDIA_BUS_FMT_SGRBG10_1X101395};1396 1397static const char * const ov8856_test_pattern_menu[] = {1398 "Disabled",1399 "Standard Color Bar",1400 "Top-Bottom Darker Color Bar",1401 "Right-Left Darker Color Bar",1402 "Bottom-Top Darker Color Bar"1403};1404 1405static const struct ov8856_reg_list bayer_offset_configs[] = {1406 [OV8856_MEDIA_BUS_FMT_SBGGR10_1X10] = {1407 .num_of_regs = ARRAY_SIZE(mipi_data_mbus_sbggr10_1x10),1408 .regs = mipi_data_mbus_sbggr10_1x10,1409 },1410 [OV8856_MEDIA_BUS_FMT_SGRBG10_1X10] = {1411 .num_of_regs = ARRAY_SIZE(mipi_data_mbus_sgrbg10_1x10),1412 .regs = mipi_data_mbus_sgrbg10_1x10,1413 }1414};1415 1416struct ov8856 {1417 struct v4l2_subdev sd;1418 struct media_pad pad;1419 struct v4l2_ctrl_handler ctrl_handler;1420 1421 struct clk *xvclk;1422 struct gpio_desc *reset_gpio;1423 struct regulator_bulk_data supplies[ARRAY_SIZE(ov8856_supply_names)];1424 1425 /* V4L2 Controls */1426 struct v4l2_ctrl *link_freq;1427 struct v4l2_ctrl *pixel_rate;1428 struct v4l2_ctrl *vblank;1429 struct v4l2_ctrl *hblank;1430 struct v4l2_ctrl *exposure;1431 1432 /* Current mode */1433 const struct ov8856_mode *cur_mode;1434 1435 /* Application specified mbus format */1436 u32 cur_mbus_index;1437 1438 /* To serialize asynchronus callbacks */1439 struct mutex mutex;1440 1441 /* lanes index */1442 u8 nlanes;1443 1444 const struct ov8856_lane_cfg *priv_lane;1445 u8 modes_size;1446 1447 /* True if the device has been identified */1448 bool identified;1449};1450 1451struct ov8856_lane_cfg {1452 const s64 link_freq_menu_items[2];1453 const struct ov8856_link_freq_config link_freq_configs[2];1454 const struct ov8856_mode supported_modes[4];1455};1456 1457static const struct ov8856_lane_cfg lane_cfg_2 = {1458 {1459 720000000,1460 360000000,1461 },1462 {{1463 .reg_list = {1464 .num_of_regs =1465 ARRAY_SIZE(mipi_data_rate_lane_2.regs_0),1466 .regs = mipi_data_rate_lane_2.regs_0,1467 }1468 },1469 {1470 .reg_list = {1471 .num_of_regs =1472 ARRAY_SIZE(mipi_data_rate_lane_2.regs_1),1473 .regs = mipi_data_rate_lane_2.regs_1,1474 }1475 }},1476 {{1477 .width = 3280,1478 .height = 2464,1479 .hts = 1928,1480 .vts_def = 2488,1481 .vts_min = 2488,1482 .reg_list = {1483 .num_of_regs =1484 ARRAY_SIZE(lane_2_mode_3280x2464),1485 .regs = lane_2_mode_3280x2464,1486 },1487 .link_freq_index = 0,1488 .data_lanes = 2,1489 .default_mbus_index = OV8856_MEDIA_BUS_FMT_SGRBG10_1X10,1490 },1491 {1492 .width = 1640,1493 .height = 1232,1494 .hts = 3168,1495 .vts_def = 1514,1496 .vts_min = 1514,1497 .reg_list = {1498 .num_of_regs =1499 ARRAY_SIZE(lane_2_mode_1640x1232),1500 .regs = lane_2_mode_1640x1232,1501 },1502 .link_freq_index = 1,1503 .data_lanes = 2,1504 .default_mbus_index = OV8856_MEDIA_BUS_FMT_SGRBG10_1X10,1505 }}1506};1507 1508static const struct ov8856_lane_cfg lane_cfg_4 = {1509 {1510 360000000,1511 180000000,1512 },1513 {{1514 .reg_list = {1515 .num_of_regs =1516 ARRAY_SIZE(mipi_data_rate_lane_4.regs_0),1517 .regs = mipi_data_rate_lane_4.regs_0,1518 }1519 },1520 {1521 .reg_list = {1522 .num_of_regs =1523 ARRAY_SIZE(mipi_data_rate_lane_4.regs_1),1524 .regs = mipi_data_rate_lane_4.regs_1,1525 }1526 }},1527 {{1528 .width = 3280,1529 .height = 2464,1530 .hts = 1928,1531 .vts_def = 2488,1532 .vts_min = 2488,1533 .reg_list = {1534 .num_of_regs =1535 ARRAY_SIZE(lane_4_mode_3280x2464),1536 .regs = lane_4_mode_3280x2464,1537 },1538 .link_freq_index = 0,1539 .data_lanes = 4,1540 .default_mbus_index = OV8856_MEDIA_BUS_FMT_SGRBG10_1X10,1541 },1542 {1543 .width = 1640,1544 .height = 1232,1545 .hts = 3820,1546 .vts_def = 1256,1547 .vts_min = 1256,1548 .reg_list = {1549 .num_of_regs =1550 ARRAY_SIZE(lane_4_mode_1640x1232),1551 .regs = lane_4_mode_1640x1232,1552 },1553 .link_freq_index = 1,1554 .data_lanes = 4,1555 .default_mbus_index = OV8856_MEDIA_BUS_FMT_SGRBG10_1X10,1556 },1557 {1558 .width = 3264,1559 .height = 2448,1560 .hts = 1932,1561 .vts_def = 2482,1562 .vts_min = 2482,1563 .reg_list = {1564 .num_of_regs =1565 ARRAY_SIZE(lane_4_mode_3264x2448),1566 .regs = lane_4_mode_3264x2448,1567 },1568 .link_freq_index = 0,1569 .data_lanes = 4,1570 .default_mbus_index = OV8856_MEDIA_BUS_FMT_SBGGR10_1X10,1571 },1572 {1573 .width = 1632,1574 .height = 1224,1575 .hts = 1932,1576 .vts_def = 2482,1577 .vts_min = 2482,1578 .reg_list = {1579 .num_of_regs =1580 ARRAY_SIZE(lane_4_mode_1632x1224),1581 .regs = lane_4_mode_1632x1224,1582 },1583 .link_freq_index = 1,1584 .data_lanes = 4,1585 .default_mbus_index = OV8856_MEDIA_BUS_FMT_SBGGR10_1X10,1586 }}1587};1588 1589static unsigned int ov8856_modes_num(const struct ov8856 *ov8856)1590{1591 unsigned int i, count = 0;1592 1593 for (i = 0; i < ARRAY_SIZE(ov8856->priv_lane->supported_modes); i++) {1594 if (ov8856->priv_lane->supported_modes[i].width == 0)1595 break;1596 count++;1597 }1598 1599 return count;1600}1601 1602static u64 to_rate(const s64 *link_freq_menu_items,1603 u32 f_index, u8 nlanes)1604{1605 u64 pixel_rate = link_freq_menu_items[f_index] * 2 * nlanes;1606 1607 do_div(pixel_rate, OV8856_RGB_DEPTH);1608 1609 return pixel_rate;1610}1611 1612static u64 to_pixels_per_line(const s64 *link_freq_menu_items, u32 hts,1613 u32 f_index, u8 nlanes)1614{1615 u64 ppl = hts * to_rate(link_freq_menu_items, f_index, nlanes);1616 1617 do_div(ppl, OV8856_SCLK);1618 1619 return ppl;1620}1621 1622static int ov8856_read_reg(struct ov8856 *ov8856, u16 reg, u16 len, u32 *val)1623{1624 struct i2c_client *client = v4l2_get_subdevdata(&ov8856->sd);1625 struct i2c_msg msgs[2];1626 u8 addr_buf[2];1627 u8 data_buf[4] = {0};1628 int ret;1629 1630 if (len > 4)1631 return -EINVAL;1632 1633 put_unaligned_be16(reg, addr_buf);1634 msgs[0].addr = client->addr;1635 msgs[0].flags = 0;1636 msgs[0].len = sizeof(addr_buf);1637 msgs[0].buf = addr_buf;1638 msgs[1].addr = client->addr;1639 msgs[1].flags = I2C_M_RD;1640 msgs[1].len = len;1641 msgs[1].buf = &data_buf[4 - len];1642 1643 ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));1644 if (ret != ARRAY_SIZE(msgs))1645 return -EIO;1646 1647 *val = get_unaligned_be32(data_buf);1648 1649 return 0;1650}1651 1652static int ov8856_write_reg(struct ov8856 *ov8856, u16 reg, u16 len, u32 val)1653{1654 struct i2c_client *client = v4l2_get_subdevdata(&ov8856->sd);1655 u8 buf[6];1656 1657 if (len > 4)1658 return -EINVAL;1659 1660 put_unaligned_be16(reg, buf);1661 put_unaligned_be32(val << 8 * (4 - len), buf + 2);1662 if (i2c_master_send(client, buf, len + 2) != len + 2)1663 return -EIO;1664 1665 return 0;1666}1667 1668static int ov8856_write_reg_list(struct ov8856 *ov8856,1669 const struct ov8856_reg_list *r_list)1670{1671 struct i2c_client *client = v4l2_get_subdevdata(&ov8856->sd);1672 unsigned int i;1673 int ret;1674 1675 for (i = 0; i < r_list->num_of_regs; i++) {1676 ret = ov8856_write_reg(ov8856, r_list->regs[i].address, 1,1677 r_list->regs[i].val);1678 if (ret) {1679 dev_err_ratelimited(&client->dev,1680 "failed to write reg 0x%4.4x. error = %d",1681 r_list->regs[i].address, ret);1682 return ret;1683 }1684 }1685 1686 return 0;1687}1688 1689static int ov8856_identify_module(struct ov8856 *ov8856)1690{1691 struct i2c_client *client = v4l2_get_subdevdata(&ov8856->sd);1692 int ret;1693 u32 val;1694 1695 if (ov8856->identified)1696 return 0;1697 1698 ret = ov8856_read_reg(ov8856, OV8856_REG_CHIP_ID,1699 OV8856_REG_VALUE_24BIT, &val);1700 if (ret)1701 return ret;1702 1703 if (val != OV8856_CHIP_ID) {1704 dev_err(&client->dev, "chip id mismatch: %x!=%x",1705 OV8856_CHIP_ID, val);1706 return -ENXIO;1707 }1708 1709 ov8856->identified = true;1710 1711 return 0;1712}1713 1714static int ov8856_update_digital_gain(struct ov8856 *ov8856, u32 d_gain)1715{1716 return ov8856_write_reg(ov8856, OV8856_REG_DIGITAL_GAIN,1717 OV8856_REG_VALUE_16BIT, d_gain);1718}1719 1720static int ov8856_test_pattern(struct ov8856 *ov8856, u32 pattern)1721{1722 if (pattern)1723 pattern = (pattern - 1) << OV8856_TEST_PATTERN_BAR_SHIFT |1724 OV8856_TEST_PATTERN_ENABLE;1725 1726 return ov8856_write_reg(ov8856, OV8856_REG_TEST_PATTERN,1727 OV8856_REG_VALUE_08BIT, pattern);1728}1729 1730static int ov8856_set_ctrl_hflip(struct ov8856 *ov8856, u32 ctrl_val)1731{1732 int ret;1733 u32 val;1734 1735 ret = ov8856_read_reg(ov8856, OV8856_REG_MIRROR_OPT_1,1736 OV8856_REG_VALUE_08BIT, &val);1737 if (ret)1738 return ret;1739 1740 ret = ov8856_write_reg(ov8856, OV8856_REG_MIRROR_OPT_1,1741 OV8856_REG_VALUE_08BIT,1742 ctrl_val ? val & ~OV8856_REG_MIRROR_OP_2 :1743 val | OV8856_REG_MIRROR_OP_2);1744 1745 if (ret)1746 return ret;1747 1748 ret = ov8856_read_reg(ov8856, OV8856_REG_FORMAT2,1749 OV8856_REG_VALUE_08BIT, &val);1750 if (ret)1751 return ret;1752 1753 return ov8856_write_reg(ov8856, OV8856_REG_FORMAT2,1754 OV8856_REG_VALUE_08BIT,1755 ctrl_val ? val & ~OV8856_REG_FORMAT2_OP_1 &1756 ~OV8856_REG_FORMAT2_OP_2 &1757 ~OV8856_REG_FORMAT2_OP_3 :1758 val | OV8856_REG_FORMAT2_OP_1 |1759 OV8856_REG_FORMAT2_OP_2 |1760 OV8856_REG_FORMAT2_OP_3);1761}1762 1763static int ov8856_set_ctrl_vflip(struct ov8856 *ov8856, u8 ctrl_val)1764{1765 int ret;1766 u32 val;1767 1768 ret = ov8856_read_reg(ov8856, OV8856_REG_FLIP_OPT_1,1769 OV8856_REG_VALUE_08BIT, &val);1770 if (ret)1771 return ret;1772 1773 ret = ov8856_write_reg(ov8856, OV8856_REG_FLIP_OPT_1,1774 OV8856_REG_VALUE_08BIT,1775 ctrl_val ? val | OV8856_REG_FLIP_OP_1 |1776 OV8856_REG_FLIP_OP_2 :1777 val & ~OV8856_REG_FLIP_OP_1 &1778 ~OV8856_REG_FLIP_OP_2);1779 1780 ret = ov8856_read_reg(ov8856, OV8856_REG_FLIP_OPT_2,1781 OV8856_REG_VALUE_08BIT, &val);1782 if (ret)1783 return ret;1784 1785 ret = ov8856_write_reg(ov8856, OV8856_REG_FLIP_OPT_2,1786 OV8856_REG_VALUE_08BIT,1787 ctrl_val ? val | OV8856_REG_FLIP_OP_2 :1788 val & ~OV8856_REG_FLIP_OP_2);1789 1790 ret = ov8856_read_reg(ov8856, OV8856_REG_FLIP_OPT_3,1791 OV8856_REG_VALUE_08BIT, &val);1792 if (ret)1793 return ret;1794 1795 ret = ov8856_write_reg(ov8856, OV8856_REG_FLIP_OPT_3,1796 OV8856_REG_VALUE_08BIT,1797 ctrl_val ? val & ~OV8856_REG_FLIP_OP_0 &1798 ~OV8856_REG_FLIP_OP_1 :1799 val | OV8856_REG_FLIP_OP_0 |1800 OV8856_REG_FLIP_OP_1);1801 1802 ret = ov8856_read_reg(ov8856, OV8856_REG_FORMAT1,1803 OV8856_REG_VALUE_08BIT, &val);1804 if (ret)1805 return ret;1806 1807 return ov8856_write_reg(ov8856, OV8856_REG_FORMAT1,1808 OV8856_REG_VALUE_08BIT,1809 ctrl_val ? val | OV8856_REG_FORMAT1_OP_1 |1810 OV8856_REG_FORMAT1_OP_3 |1811 OV8856_REG_FORMAT1_OP_2 :1812 val & ~OV8856_REG_FORMAT1_OP_1 &1813 ~OV8856_REG_FORMAT1_OP_3 &1814 ~OV8856_REG_FORMAT1_OP_2);1815}1816 1817static int ov8856_set_ctrl(struct v4l2_ctrl *ctrl)1818{1819 struct ov8856 *ov8856 = container_of(ctrl->handler,1820 struct ov8856, ctrl_handler);1821 struct i2c_client *client = v4l2_get_subdevdata(&ov8856->sd);1822 s64 exposure_max;1823 int ret = 0;1824 1825 /* Propagate change of current control to all related controls */1826 if (ctrl->id == V4L2_CID_VBLANK) {1827 /* Update max exposure while meeting expected vblanking */1828 exposure_max = ov8856->cur_mode->height + ctrl->val -1829 OV8856_EXPOSURE_MAX_MARGIN;1830 __v4l2_ctrl_modify_range(ov8856->exposure,1831 ov8856->exposure->minimum,1832 exposure_max, ov8856->exposure->step,1833 exposure_max);1834 }1835 1836 /* V4L2 controls values will be applied only when power is already up */1837 if (!pm_runtime_get_if_in_use(&client->dev))1838 return 0;1839 1840 switch (ctrl->id) {1841 case V4L2_CID_ANALOGUE_GAIN:1842 ret = ov8856_write_reg(ov8856, OV8856_REG_ANALOG_GAIN,1843 OV8856_REG_VALUE_16BIT, ctrl->val);1844 break;1845 1846 case V4L2_CID_DIGITAL_GAIN:1847 ret = ov8856_update_digital_gain(ov8856, ctrl->val);1848 break;1849 1850 case V4L2_CID_EXPOSURE:1851 /* 4 least significant bits of expsoure are fractional part */1852 ret = ov8856_write_reg(ov8856, OV8856_REG_EXPOSURE,1853 OV8856_REG_VALUE_24BIT, ctrl->val << 4);1854 break;1855 1856 case V4L2_CID_VBLANK:1857 ret = ov8856_write_reg(ov8856, OV8856_REG_VTS,1858 OV8856_REG_VALUE_16BIT,1859 ov8856->cur_mode->height + ctrl->val);1860 break;1861 1862 case V4L2_CID_TEST_PATTERN:1863 ret = ov8856_test_pattern(ov8856, ctrl->val);1864 break;1865 1866 case V4L2_CID_HFLIP:1867 ret = ov8856_set_ctrl_hflip(ov8856, ctrl->val);1868 break;1869 1870 case V4L2_CID_VFLIP:1871 ret = ov8856_set_ctrl_vflip(ov8856, ctrl->val);1872 break;1873 1874 default:1875 ret = -EINVAL;1876 break;1877 }1878 1879 pm_runtime_put(&client->dev);1880 1881 return ret;1882}1883 1884static const struct v4l2_ctrl_ops ov8856_ctrl_ops = {1885 .s_ctrl = ov8856_set_ctrl,1886};1887 1888static int ov8856_init_controls(struct ov8856 *ov8856)1889{1890 struct v4l2_ctrl_handler *ctrl_hdlr;1891 s64 exposure_max, h_blank;1892 int ret;1893 1894 ctrl_hdlr = &ov8856->ctrl_handler;1895 ret = v4l2_ctrl_handler_init(ctrl_hdlr, 8);1896 if (ret)1897 return ret;1898 1899 ctrl_hdlr->lock = &ov8856->mutex;1900 ov8856->link_freq = v4l2_ctrl_new_int_menu(ctrl_hdlr, &ov8856_ctrl_ops,1901 V4L2_CID_LINK_FREQ,1902 ARRAY_SIZE1903 (ov8856->priv_lane->link_freq_menu_items)1904 - 1,1905 0, ov8856->priv_lane->link_freq_menu_items);1906 if (ov8856->link_freq)1907 ov8856->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY;1908 1909 ov8856->pixel_rate = v4l2_ctrl_new_std(ctrl_hdlr, &ov8856_ctrl_ops,1910 V4L2_CID_PIXEL_RATE, 0,1911 to_rate(ov8856->priv_lane->link_freq_menu_items,1912 0,1913 ov8856->cur_mode->data_lanes), 1,1914 to_rate(ov8856->priv_lane->link_freq_menu_items,1915 0,1916 ov8856->cur_mode->data_lanes));1917 ov8856->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov8856_ctrl_ops,1918 V4L2_CID_VBLANK,1919 ov8856->cur_mode->vts_min - ov8856->cur_mode->height,1920 OV8856_VTS_MAX - ov8856->cur_mode->height, 1,1921 ov8856->cur_mode->vts_def -1922 ov8856->cur_mode->height);1923 h_blank = to_pixels_per_line(ov8856->priv_lane->link_freq_menu_items,1924 ov8856->cur_mode->hts,1925 ov8856->cur_mode->link_freq_index,1926 ov8856->cur_mode->data_lanes) -1927 ov8856->cur_mode->width;1928 ov8856->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &ov8856_ctrl_ops,1929 V4L2_CID_HBLANK, h_blank, h_blank, 1,1930 h_blank);1931 if (ov8856->hblank)1932 ov8856->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY;1933 1934 v4l2_ctrl_new_std(ctrl_hdlr, &ov8856_ctrl_ops, V4L2_CID_ANALOGUE_GAIN,1935 OV8856_ANAL_GAIN_MIN, OV8856_ANAL_GAIN_MAX,1936 OV8856_ANAL_GAIN_STEP, OV8856_ANAL_GAIN_MIN);1937 v4l2_ctrl_new_std(ctrl_hdlr, &ov8856_ctrl_ops, V4L2_CID_DIGITAL_GAIN,1938 OV8856_DGTL_GAIN_MIN, OV8856_DGTL_GAIN_MAX,1939 OV8856_DGTL_GAIN_STEP, OV8856_DGTL_GAIN_DEFAULT);1940 exposure_max = ov8856->cur_mode->vts_def - OV8856_EXPOSURE_MAX_MARGIN;1941 ov8856->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &ov8856_ctrl_ops,1942 V4L2_CID_EXPOSURE,1943 OV8856_EXPOSURE_MIN, exposure_max,1944 OV8856_EXPOSURE_STEP,1945 exposure_max);1946 v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &ov8856_ctrl_ops,1947 V4L2_CID_TEST_PATTERN,1948 ARRAY_SIZE(ov8856_test_pattern_menu) - 1,1949 0, 0, ov8856_test_pattern_menu);1950 v4l2_ctrl_new_std(ctrl_hdlr, &ov8856_ctrl_ops,1951 V4L2_CID_HFLIP, 0, 1, 1, 0);1952 v4l2_ctrl_new_std(ctrl_hdlr, &ov8856_ctrl_ops,1953 V4L2_CID_VFLIP, 0, 1, 1, 0);1954 if (ctrl_hdlr->error)1955 return ctrl_hdlr->error;1956 1957 ov8856->sd.ctrl_handler = ctrl_hdlr;1958 1959 return 0;1960}1961 1962static void ov8856_update_pad_format(struct ov8856 *ov8856,1963 const struct ov8856_mode *mode,1964 struct v4l2_mbus_framefmt *fmt)1965{1966 int index;1967 1968 fmt->width = mode->width;1969 fmt->height = mode->height;1970 for (index = 0; index < ARRAY_SIZE(ov8856_mbus_codes); ++index)1971 if (ov8856_mbus_codes[index] == fmt->code)1972 break;1973 if (index == ARRAY_SIZE(ov8856_mbus_codes))1974 index = mode->default_mbus_index;1975 fmt->code = ov8856_mbus_codes[index];1976 ov8856->cur_mbus_index = index;1977 fmt->field = V4L2_FIELD_NONE;1978}1979 1980static int ov8856_start_streaming(struct ov8856 *ov8856)1981{1982 struct i2c_client *client = v4l2_get_subdevdata(&ov8856->sd);1983 const struct ov8856_reg_list *reg_list;1984 int link_freq_index, ret;1985 1986 ret = ov8856_identify_module(ov8856);1987 if (ret)1988 return ret;1989 1990 link_freq_index = ov8856->cur_mode->link_freq_index;1991 reg_list = &ov8856->priv_lane->link_freq_configs[link_freq_index].reg_list;1992 1993 ret = ov8856_write_reg_list(ov8856, reg_list);1994 if (ret) {1995 dev_err(&client->dev, "failed to set plls");1996 return ret;1997 }1998 1999 reg_list = &ov8856->cur_mode->reg_list;2000 ret = ov8856_write_reg_list(ov8856, reg_list);2001 if (ret) {2002 dev_err(&client->dev, "failed to set mode");2003 return ret;2004 }2005 2006 reg_list = &bayer_offset_configs[ov8856->cur_mbus_index];2007 ret = ov8856_write_reg_list(ov8856, reg_list);2008 if (ret) {2009 dev_err(&client->dev, "failed to set mbus format");2010 return ret;2011 }2012 2013 ret = __v4l2_ctrl_handler_setup(ov8856->sd.ctrl_handler);2014 if (ret)2015 return ret;2016 2017 ret = ov8856_write_reg(ov8856, OV8856_REG_MODE_SELECT,2018 OV8856_REG_VALUE_08BIT, OV8856_MODE_STREAMING);2019 if (ret) {2020 dev_err(&client->dev, "failed to set stream");2021 return ret;2022 }2023 2024 return 0;2025}2026 2027static void ov8856_stop_streaming(struct ov8856 *ov8856)2028{2029 struct i2c_client *client = v4l2_get_subdevdata(&ov8856->sd);2030 2031 if (ov8856_write_reg(ov8856, OV8856_REG_MODE_SELECT,2032 OV8856_REG_VALUE_08BIT, OV8856_MODE_STANDBY))2033 dev_err(&client->dev, "failed to set stream");2034}2035 2036static int ov8856_set_stream(struct v4l2_subdev *sd, int enable)2037{2038 struct ov8856 *ov8856 = to_ov8856(sd);2039 struct i2c_client *client = v4l2_get_subdevdata(sd);2040 int ret = 0;2041 2042 mutex_lock(&ov8856->mutex);2043 if (enable) {2044 ret = pm_runtime_resume_and_get(&client->dev);2045 if (ret < 0) {2046 mutex_unlock(&ov8856->mutex);2047 return ret;2048 }2049 2050 ret = ov8856_start_streaming(ov8856);2051 if (ret) {2052 enable = 0;2053 ov8856_stop_streaming(ov8856);2054 pm_runtime_put(&client->dev);2055 }2056 } else {2057 ov8856_stop_streaming(ov8856);2058 pm_runtime_put(&client->dev);2059 }2060 2061 mutex_unlock(&ov8856->mutex);2062 2063 return ret;2064}2065 2066static int ov8856_power_on(struct device *dev)2067{2068 struct v4l2_subdev *sd = dev_get_drvdata(dev);2069 struct ov8856 *ov8856 = to_ov8856(sd);2070 int ret;2071 2072 if (is_acpi_node(dev_fwnode(dev)))2073 return 0;2074 2075 ret = clk_prepare_enable(ov8856->xvclk);2076 if (ret < 0) {2077 dev_err(dev, "failed to enable xvclk\n");2078 return ret;2079 }2080 2081 if (ov8856->reset_gpio) {2082 gpiod_set_value_cansleep(ov8856->reset_gpio, 1);2083 usleep_range(1000, 2000);2084 }2085 2086 ret = regulator_bulk_enable(ARRAY_SIZE(ov8856_supply_names),2087 ov8856->supplies);2088 if (ret < 0) {2089 dev_err(dev, "failed to enable regulators\n");2090 goto disable_clk;2091 }2092 2093 gpiod_set_value_cansleep(ov8856->reset_gpio, 0);2094 usleep_range(1500, 1800);2095 2096 return 0;2097 2098disable_clk:2099 gpiod_set_value_cansleep(ov8856->reset_gpio, 1);2100 clk_disable_unprepare(ov8856->xvclk);2101 2102 return ret;2103}2104 2105static int ov8856_power_off(struct device *dev)2106{2107 struct v4l2_subdev *sd = dev_get_drvdata(dev);2108 struct ov8856 *ov8856 = to_ov8856(sd);2109 2110 if (is_acpi_node(dev_fwnode(dev)))2111 return 0;2112 2113 gpiod_set_value_cansleep(ov8856->reset_gpio, 1);2114 regulator_bulk_disable(ARRAY_SIZE(ov8856_supply_names),2115 ov8856->supplies);2116 clk_disable_unprepare(ov8856->xvclk);2117 2118 return 0;2119}2120 2121static int ov8856_set_format(struct v4l2_subdev *sd,2122 struct v4l2_subdev_state *sd_state,2123 struct v4l2_subdev_format *fmt)2124{2125 struct ov8856 *ov8856 = to_ov8856(sd);2126 const struct ov8856_mode *mode;2127 s32 vblank_def, h_blank;2128 2129 mode = v4l2_find_nearest_size(ov8856->priv_lane->supported_modes,2130 ov8856->modes_size,2131 width, height, fmt->format.width,2132 fmt->format.height);2133 2134 mutex_lock(&ov8856->mutex);2135 ov8856_update_pad_format(ov8856, mode, &fmt->format);2136 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY) {2137 *v4l2_subdev_state_get_format(sd_state, fmt->pad) = fmt->format;2138 } else {2139 ov8856->cur_mode = mode;2140 __v4l2_ctrl_s_ctrl(ov8856->link_freq, mode->link_freq_index);2141 __v4l2_ctrl_s_ctrl_int64(ov8856->pixel_rate,2142 to_rate(ov8856->priv_lane->link_freq_menu_items,2143 mode->link_freq_index,2144 ov8856->cur_mode->data_lanes));2145 2146 /* Update limits and set FPS to default */2147 vblank_def = mode->vts_def - mode->height;2148 __v4l2_ctrl_modify_range(ov8856->vblank,2149 mode->vts_min - mode->height,2150 OV8856_VTS_MAX - mode->height, 1,2151 vblank_def);2152 __v4l2_ctrl_s_ctrl(ov8856->vblank, vblank_def);2153 h_blank = to_pixels_per_line(ov8856->priv_lane->link_freq_menu_items,2154 mode->hts,2155 mode->link_freq_index,2156 ov8856->cur_mode->data_lanes)2157 - mode->width;2158 __v4l2_ctrl_modify_range(ov8856->hblank, h_blank, h_blank, 1,2159 h_blank);2160 }2161 2162 mutex_unlock(&ov8856->mutex);2163 2164 return 0;2165}2166 2167static int ov8856_get_format(struct v4l2_subdev *sd,2168 struct v4l2_subdev_state *sd_state,2169 struct v4l2_subdev_format *fmt)2170{2171 struct ov8856 *ov8856 = to_ov8856(sd);2172 2173 mutex_lock(&ov8856->mutex);2174 if (fmt->which == V4L2_SUBDEV_FORMAT_TRY)2175 fmt->format = *v4l2_subdev_state_get_format(sd_state,2176 fmt->pad);2177 else2178 ov8856_update_pad_format(ov8856, ov8856->cur_mode, &fmt->format);2179 2180 mutex_unlock(&ov8856->mutex);2181 2182 return 0;2183}2184 2185static int ov8856_enum_mbus_code(struct v4l2_subdev *sd,2186 struct v4l2_subdev_state *sd_state,2187 struct v4l2_subdev_mbus_code_enum *code)2188{2189 if (code->index >= ARRAY_SIZE(ov8856_mbus_codes))2190 return -EINVAL;2191 2192 code->code = ov8856_mbus_codes[code->index];2193 2194 return 0;2195}2196 2197static int ov8856_enum_frame_size(struct v4l2_subdev *sd,2198 struct v4l2_subdev_state *sd_state,2199 struct v4l2_subdev_frame_size_enum *fse)2200{2201 struct ov8856 *ov8856 = to_ov8856(sd);2202 int index;2203 2204 if (fse->index >= ov8856->modes_size)2205 return -EINVAL;2206 2207 for (index = 0; index < ARRAY_SIZE(ov8856_mbus_codes); ++index)2208 if (fse->code == ov8856_mbus_codes[index])2209 break;2210 if (index == ARRAY_SIZE(ov8856_mbus_codes))2211 return -EINVAL;2212 2213 fse->min_width = ov8856->priv_lane->supported_modes[fse->index].width;2214 fse->max_width = fse->min_width;2215 fse->min_height = ov8856->priv_lane->supported_modes[fse->index].height;2216 fse->max_height = fse->min_height;2217 2218 return 0;2219}2220 2221static int ov8856_open(struct v4l2_subdev *sd, struct v4l2_subdev_fh *fh)2222{2223 struct ov8856 *ov8856 = to_ov8856(sd);2224 2225 mutex_lock(&ov8856->mutex);2226 ov8856_update_pad_format(ov8856, &ov8856->priv_lane->supported_modes[0],2227 v4l2_subdev_state_get_format(fh->state, 0));2228 mutex_unlock(&ov8856->mutex);2229 2230 return 0;2231}2232 2233static const struct v4l2_subdev_video_ops ov8856_video_ops = {2234 .s_stream = ov8856_set_stream,2235};2236 2237static const struct v4l2_subdev_pad_ops ov8856_pad_ops = {2238 .set_fmt = ov8856_set_format,2239 .get_fmt = ov8856_get_format,2240 .enum_mbus_code = ov8856_enum_mbus_code,2241 .enum_frame_size = ov8856_enum_frame_size,2242};2243 2244static const struct v4l2_subdev_ops ov8856_subdev_ops = {2245 .video = &ov8856_video_ops,2246 .pad = &ov8856_pad_ops,2247};2248 2249static const struct media_entity_operations ov8856_subdev_entity_ops = {2250 .link_validate = v4l2_subdev_link_validate,2251};2252 2253static const struct v4l2_subdev_internal_ops ov8856_internal_ops = {2254 .open = ov8856_open,2255};2256 2257 2258static int ov8856_get_hwcfg(struct ov8856 *ov8856, struct device *dev)2259{2260 struct fwnode_handle *ep;2261 struct fwnode_handle *fwnode = dev_fwnode(dev);2262 struct v4l2_fwnode_endpoint bus_cfg = {2263 .bus_type = V4L2_MBUS_CSI2_DPHY2264 };2265 u32 xvclk_rate;2266 int ret;2267 unsigned int i, j;2268 2269 if (!fwnode)2270 return -ENXIO;2271 2272 ret = fwnode_property_read_u32(fwnode, "clock-frequency", &xvclk_rate);2273 if (ret)2274 return ret;2275 2276 if (!is_acpi_node(fwnode)) {2277 ov8856->xvclk = devm_clk_get(dev, "xvclk");2278 if (IS_ERR(ov8856->xvclk)) {2279 dev_err(dev, "could not get xvclk clock (%pe)\n",2280 ov8856->xvclk);2281 return PTR_ERR(ov8856->xvclk);2282 }2283 2284 clk_set_rate(ov8856->xvclk, xvclk_rate);2285 xvclk_rate = clk_get_rate(ov8856->xvclk);2286 2287 ov8856->reset_gpio = devm_gpiod_get_optional(dev, "reset",2288 GPIOD_OUT_LOW);2289 if (IS_ERR(ov8856->reset_gpio))2290 return PTR_ERR(ov8856->reset_gpio);2291 2292 for (i = 0; i < ARRAY_SIZE(ov8856_supply_names); i++)2293 ov8856->supplies[i].supply = ov8856_supply_names[i];2294 2295 ret = devm_regulator_bulk_get(dev,2296 ARRAY_SIZE(ov8856_supply_names),2297 ov8856->supplies);2298 if (ret)2299 return ret;2300 }2301 2302 if (xvclk_rate != OV8856_XVCLK_19_2)2303 dev_warn(dev, "external clock rate %u is unsupported",2304 xvclk_rate);2305 2306 ep = fwnode_graph_get_next_endpoint(fwnode, NULL);2307 if (!ep)2308 return -ENXIO;2309 2310 ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg);2311 fwnode_handle_put(ep);2312 if (ret)2313 return ret;2314 2315 /* Get number of data lanes */2316 if (bus_cfg.bus.mipi_csi2.num_data_lanes != 2 &&2317 bus_cfg.bus.mipi_csi2.num_data_lanes != 4) {2318 dev_err(dev, "number of CSI2 data lanes %d is not supported",2319 bus_cfg.bus.mipi_csi2.num_data_lanes);2320 ret = -EINVAL;2321 goto check_hwcfg_error;2322 }2323 2324 dev_dbg(dev, "Using %u data lanes\n", ov8856->cur_mode->data_lanes);2325 2326 if (bus_cfg.bus.mipi_csi2.num_data_lanes == 2)2327 ov8856->priv_lane = &lane_cfg_2;2328 else2329 ov8856->priv_lane = &lane_cfg_4;2330 2331 ov8856->modes_size = ov8856_modes_num(ov8856);2332 2333 if (!bus_cfg.nr_of_link_frequencies) {2334 dev_err(dev, "no link frequencies defined");2335 ret = -EINVAL;2336 goto check_hwcfg_error;2337 }2338 2339 for (i = 0; i < ARRAY_SIZE(ov8856->priv_lane->link_freq_menu_items); i++) {2340 for (j = 0; j < bus_cfg.nr_of_link_frequencies; j++) {2341 if (ov8856->priv_lane->link_freq_menu_items[i] ==2342 bus_cfg.link_frequencies[j])2343 break;2344 }2345 2346 if (j == bus_cfg.nr_of_link_frequencies) {2347 dev_err(dev, "no link frequency %lld supported",2348 ov8856->priv_lane->link_freq_menu_items[i]);2349 ret = -EINVAL;2350 goto check_hwcfg_error;2351 }2352 }2353 2354check_hwcfg_error:2355 v4l2_fwnode_endpoint_free(&bus_cfg);2356 2357 return ret;2358}2359 2360static void ov8856_remove(struct i2c_client *client)2361{2362 struct v4l2_subdev *sd = i2c_get_clientdata(client);2363 struct ov8856 *ov8856 = to_ov8856(sd);2364 2365 v4l2_async_unregister_subdev(sd);2366 media_entity_cleanup(&sd->entity);2367 v4l2_ctrl_handler_free(sd->ctrl_handler);2368 pm_runtime_disable(&client->dev);2369 mutex_destroy(&ov8856->mutex);2370 2371 ov8856_power_off(&client->dev);2372}2373 2374static int ov8856_probe(struct i2c_client *client)2375{2376 struct ov8856 *ov8856;2377 int ret;2378 bool full_power;2379 2380 ov8856 = devm_kzalloc(&client->dev, sizeof(*ov8856), GFP_KERNEL);2381 if (!ov8856)2382 return -ENOMEM;2383 2384 ret = ov8856_get_hwcfg(ov8856, &client->dev);2385 if (ret) {2386 dev_err(&client->dev, "failed to get HW configuration: %d",2387 ret);2388 return ret;2389 }2390 2391 v4l2_i2c_subdev_init(&ov8856->sd, client, &ov8856_subdev_ops);2392 2393 full_power = acpi_dev_state_d0(&client->dev);2394 if (full_power) {2395 ret = ov8856_power_on(&client->dev);2396 if (ret) {2397 dev_err(&client->dev, "failed to power on\n");2398 return ret;2399 }2400 2401 ret = ov8856_identify_module(ov8856);2402 if (ret) {2403 dev_err(&client->dev, "failed to find sensor: %d", ret);2404 goto probe_power_off;2405 }2406 }2407 2408 mutex_init(&ov8856->mutex);2409 ov8856->cur_mode = &ov8856->priv_lane->supported_modes[0];2410 ov8856->cur_mbus_index = ov8856->cur_mode->default_mbus_index;2411 ret = ov8856_init_controls(ov8856);2412 if (ret) {2413 dev_err(&client->dev, "failed to init controls: %d", ret);2414 goto probe_error_v4l2_ctrl_handler_free;2415 }2416 2417 ov8856->sd.internal_ops = &ov8856_internal_ops;2418 ov8856->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;2419 ov8856->sd.entity.ops = &ov8856_subdev_entity_ops;2420 ov8856->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR;2421 ov8856->pad.flags = MEDIA_PAD_FL_SOURCE;2422 ret = media_entity_pads_init(&ov8856->sd.entity, 1, &ov8856->pad);2423 if (ret) {2424 dev_err(&client->dev, "failed to init entity pads: %d", ret);2425 goto probe_error_v4l2_ctrl_handler_free;2426 }2427 2428 ret = v4l2_async_register_subdev_sensor(&ov8856->sd);2429 if (ret < 0) {2430 dev_err(&client->dev, "failed to register V4L2 subdev: %d",2431 ret);2432 goto probe_error_media_entity_cleanup;2433 }2434 2435 /* Set the device's state to active if it's in D0 state. */2436 if (full_power)2437 pm_runtime_set_active(&client->dev);2438 pm_runtime_enable(&client->dev);2439 pm_runtime_idle(&client->dev);2440 2441 return 0;2442 2443probe_error_media_entity_cleanup:2444 media_entity_cleanup(&ov8856->sd.entity);2445 2446probe_error_v4l2_ctrl_handler_free:2447 v4l2_ctrl_handler_free(ov8856->sd.ctrl_handler);2448 mutex_destroy(&ov8856->mutex);2449 2450probe_power_off:2451 ov8856_power_off(&client->dev);2452 2453 return ret;2454}2455 2456static const struct dev_pm_ops ov8856_pm_ops = {2457 SET_RUNTIME_PM_OPS(ov8856_power_off, ov8856_power_on, NULL)2458};2459 2460#ifdef CONFIG_ACPI2461static const struct acpi_device_id ov8856_acpi_ids[] = {2462 {"OVTI8856"},2463 {}2464};2465 2466MODULE_DEVICE_TABLE(acpi, ov8856_acpi_ids);2467#endif2468 2469static const struct of_device_id ov8856_of_match[] = {2470 { .compatible = "ovti,ov8856" },2471 { /* sentinel */ }2472};2473MODULE_DEVICE_TABLE(of, ov8856_of_match);2474 2475static struct i2c_driver ov8856_i2c_driver = {2476 .driver = {2477 .name = "ov8856",2478 .pm = &ov8856_pm_ops,2479 .acpi_match_table = ACPI_PTR(ov8856_acpi_ids),2480 .of_match_table = ov8856_of_match,2481 },2482 .probe = ov8856_probe,2483 .remove = ov8856_remove,2484 .flags = I2C_DRV_ACPI_WAIVE_D0_PROBE,2485};2486 2487module_i2c_driver(ov8856_i2c_driver);2488 2489MODULE_AUTHOR("Ben Kao <ben.kao@intel.com>");2490MODULE_DESCRIPTION("OmniVision OV8856 sensor driver");2491MODULE_LICENSE("GPL v2");2492