1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Driver for the OV5645 camera sensor. 4 * 5 * Copyright (c) 2011-2015, The Linux Foundation. All rights reserved. 6 * Copyright (C) 2015 By Tech Design S.L. All Rights Reserved. 7 * Copyright (C) 2012-2013 Freescale Semiconductor, Inc. All Rights Reserved. 8 * 9 * Based on: 10 * - the OV5645 driver from QC msm-3.10 kernel on codeaurora.org: 11 * https://us.codeaurora.org/cgit/quic/la/kernel/msm-3.10/tree/drivers/ 12 * media/platform/msm/camera_v2/sensor/ov5645.c?h=LA.BR.1.2.4_rb1.41 13 * - the OV5640 driver posted on linux-media: 14 * https://www.mail-archive.com/linux-media%40vger.kernel.org/msg92671.html 15 */ 16 17 /* 18 */ 19 20 #include <linux/bitops.h> 21 #include <linux/clk.h> 22 #include <linux/delay.h> 23 #include <linux/device.h> 24 #include <linux/gpio/consumer.h> 25 #include <linux/i2c.h> 26 #include <linux/init.h> 27 #include <linux/module.h> 28 #include <linux/of.h> 29 #include <linux/of_graph.h> 30 #include <linux/regulator/consumer.h> 31 #include <linux/slab.h> 32 #include <linux/types.h> 33 #include <media/v4l2-ctrls.h> 34 #include <media/v4l2-fwnode.h> 35 #include <media/v4l2-subdev.h> 36 37 #define OV5645_SYSTEM_CTRL0 0x3008 38 #define OV5645_SYSTEM_CTRL0_START 0x02 39 #define OV5645_SYSTEM_CTRL0_STOP 0x42 40 #define OV5645_CHIP_ID_HIGH 0x300a 41 #define OV5645_CHIP_ID_HIGH_BYTE 0x56 42 #define OV5645_CHIP_ID_LOW 0x300b 43 #define OV5645_CHIP_ID_LOW_BYTE 0x45 44 #define OV5645_IO_MIPI_CTRL00 0x300e 45 #define OV5645_PAD_OUTPUT00 0x3019 46 #define OV5645_AWB_MANUAL_CONTROL 0x3406 47 #define OV5645_AWB_MANUAL_ENABLE BIT(0) 48 #define OV5645_AEC_PK_MANUAL 0x3503 49 #define OV5645_AEC_MANUAL_ENABLE BIT(0) 50 #define OV5645_AGC_MANUAL_ENABLE BIT(1) 51 #define OV5645_TIMING_TC_REG20 0x3820 52 #define OV5645_SENSOR_VFLIP BIT(1) 53 #define OV5645_ISP_VFLIP BIT(2) 54 #define OV5645_TIMING_TC_REG21 0x3821 55 #define OV5645_SENSOR_MIRROR BIT(1) 56 #define OV5645_MIPI_CTRL00 0x4800 57 #define OV5645_PRE_ISP_TEST_SETTING_1 0x503d 58 #define OV5645_TEST_PATTERN_MASK 0x3 59 #define OV5645_SET_TEST_PATTERN(x) ((x) & OV5645_TEST_PATTERN_MASK) 60 #define OV5645_TEST_PATTERN_ENABLE BIT(7) 61 #define OV5645_SDE_SAT_U 0x5583 62 #define OV5645_SDE_SAT_V 0x5584 63 64 /* regulator supplies */ 65 static const char * const ov5645_supply_name[] = { 66 "vdddo", /* Digital I/O (1.8V) supply */ 67 "vdda", /* Analog (2.8V) supply */ 68 "vddd", /* Digital Core (1.5V) supply */ 69 }; 70 71 #define OV5645_NUM_SUPPLIES ARRAY_SIZE(ov5645_supply_name) 72 73 struct reg_value { 74 u16 reg; 75 u8 val; 76 }; 77 78 struct ov5645_mode_info { 79 u32 width; 80 u32 height; 81 const struct reg_value *data; 82 u32 data_size; 83 u32 pixel_clock; 84 u32 link_freq; 85 }; 86 87 struct ov5645 { 88 struct i2c_client *i2c_client; 89 struct device *dev; 90 struct v4l2_subdev sd; 91 struct media_pad pad; 92 struct v4l2_fwnode_endpoint ep; 93 struct v4l2_mbus_framefmt fmt; 94 struct v4l2_rect crop; 95 struct clk *xclk; 96 97 struct regulator_bulk_data supplies[OV5645_NUM_SUPPLIES]; 98 99 const struct ov5645_mode_info *current_mode; 100 101 struct v4l2_ctrl_handler ctrls; 102 struct v4l2_ctrl *pixel_clock; 103 struct v4l2_ctrl *link_freq; 104 105 /* Cached register values */ 106 u8 aec_pk_manual; 107 u8 timing_tc_reg20; 108 u8 timing_tc_reg21; 109 110 struct mutex power_lock; /* lock to protect power state */ 111 int power_count; 112 113 struct gpio_desc *enable_gpio; 114 struct gpio_desc *rst_gpio; 115 }; 116 117 static inline struct ov5645 *to_ov5645(struct v4l2_subdev *sd) 118 { 119 return container_of(sd, struct ov5645, sd); 120 } 121 122 static const struct reg_value ov5645_global_init_setting[] = { 123 { 0x3103, 0x11 }, 124 { 0x3008, 0x82 }, 125 { 0x3008, 0x42 }, 126 { 0x3103, 0x03 }, 127 { 0x3503, 0x07 }, 128 { 0x3002, 0x1c }, 129 { 0x3006, 0xc3 }, 130 { 0x3017, 0x00 }, 131 { 0x3018, 0x00 }, 132 { 0x302e, 0x0b }, 133 { 0x3037, 0x13 }, 134 { 0x3108, 0x01 }, 135 { 0x3611, 0x06 }, 136 { 0x3500, 0x00 }, 137 { 0x3501, 0x01 }, 138 { 0x3502, 0x00 }, 139 { 0x350a, 0x00 }, 140 { 0x350b, 0x3f }, 141 { 0x3620, 0x33 }, 142 { 0x3621, 0xe0 }, 143 { 0x3622, 0x01 }, 144 { 0x3630, 0x2e }, 145 { 0x3631, 0x00 }, 146 { 0x3632, 0x32 }, 147 { 0x3633, 0x52 }, 148 { 0x3634, 0x70 }, 149 { 0x3635, 0x13 }, 150 { 0x3636, 0x03 }, 151 { 0x3703, 0x5a }, 152 { 0x3704, 0xa0 }, 153 { 0x3705, 0x1a }, 154 { 0x3709, 0x12 }, 155 { 0x370b, 0x61 }, 156 { 0x370f, 0x10 }, 157 { 0x3715, 0x78 }, 158 { 0x3717, 0x01 }, 159 { 0x371b, 0x20 }, 160 { 0x3731, 0x12 }, 161 { 0x3901, 0x0a }, 162 { 0x3905, 0x02 }, 163 { 0x3906, 0x10 }, 164 { 0x3719, 0x86 }, 165 { 0x3810, 0x00 }, 166 { 0x3811, 0x10 }, 167 { 0x3812, 0x00 }, 168 { 0x3821, 0x01 }, 169 { 0x3824, 0x01 }, 170 { 0x3826, 0x03 }, 171 { 0x3828, 0x08 }, 172 { 0x3a19, 0xf8 }, 173 { 0x3c01, 0x34 }, 174 { 0x3c04, 0x28 }, 175 { 0x3c05, 0x98 }, 176 { 0x3c07, 0x07 }, 177 { 0x3c09, 0xc2 }, 178 { 0x3c0a, 0x9c }, 179 { 0x3c0b, 0x40 }, 180 { 0x3c01, 0x34 }, 181 { 0x4001, 0x02 }, 182 { 0x4514, 0x00 }, 183 { 0x4520, 0xb0 }, 184 { 0x460b, 0x37 }, 185 { 0x460c, 0x20 }, 186 { 0x4818, 0x01 }, 187 { 0x481d, 0xf0 }, 188 { 0x481f, 0x50 }, 189 { 0x4823, 0x70 }, 190 { 0x4831, 0x14 }, 191 { 0x5000, 0xa7 }, 192 { 0x5001, 0x83 }, 193 { 0x501d, 0x00 }, 194 { 0x501f, 0x00 }, 195 { 0x503d, 0x00 }, 196 { 0x505c, 0x30 }, 197 { 0x5181, 0x59 }, 198 { 0x5183, 0x00 }, 199 { 0x5191, 0xf0 }, 200 { 0x5192, 0x03 }, 201 { 0x5684, 0x10 }, 202 { 0x5685, 0xa0 }, 203 { 0x5686, 0x0c }, 204 { 0x5687, 0x78 }, 205 { 0x5a00, 0x08 }, 206 { 0x5a21, 0x00 }, 207 { 0x5a24, 0x00 }, 208 { 0x3008, 0x02 }, 209 { 0x3503, 0x00 }, 210 { 0x5180, 0xff }, 211 { 0x5181, 0xf2 }, 212 { 0x5182, 0x00 }, 213 { 0x5183, 0x14 }, 214 { 0x5184, 0x25 }, 215 { 0x5185, 0x24 }, 216 { 0x5186, 0x09 }, 217 { 0x5187, 0x09 }, 218 { 0x5188, 0x0a }, 219 { 0x5189, 0x75 }, 220 { 0x518a, 0x52 }, 221 { 0x518b, 0xea }, 222 { 0x518c, 0xa8 }, 223 { 0x518d, 0x42 }, 224 { 0x518e, 0x38 }, 225 { 0x518f, 0x56 }, 226 { 0x5190, 0x42 }, 227 { 0x5191, 0xf8 }, 228 { 0x5192, 0x04 }, 229 { 0x5193, 0x70 }, 230 { 0x5194, 0xf0 }, 231 { 0x5195, 0xf0 }, 232 { 0x5196, 0x03 }, 233 { 0x5197, 0x01 }, 234 { 0x5198, 0x04 }, 235 { 0x5199, 0x12 }, 236 { 0x519a, 0x04 }, 237 { 0x519b, 0x00 }, 238 { 0x519c, 0x06 }, 239 { 0x519d, 0x82 }, 240 { 0x519e, 0x38 }, 241 { 0x5381, 0x1e }, 242 { 0x5382, 0x5b }, 243 { 0x5383, 0x08 }, 244 { 0x5384, 0x0a }, 245 { 0x5385, 0x7e }, 246 { 0x5386, 0x88 }, 247 { 0x5387, 0x7c }, 248 { 0x5388, 0x6c }, 249 { 0x5389, 0x10 }, 250 { 0x538a, 0x01 }, 251 { 0x538b, 0x98 }, 252 { 0x5300, 0x08 }, 253 { 0x5301, 0x30 }, 254 { 0x5302, 0x10 }, 255 { 0x5303, 0x00 }, 256 { 0x5304, 0x08 }, 257 { 0x5305, 0x30 }, 258 { 0x5306, 0x08 }, 259 { 0x5307, 0x16 }, 260 { 0x5309, 0x08 }, 261 { 0x530a, 0x30 }, 262 { 0x530b, 0x04 }, 263 { 0x530c, 0x06 }, 264 { 0x5480, 0x01 }, 265 { 0x5481, 0x08 }, 266 { 0x5482, 0x14 }, 267 { 0x5483, 0x28 }, 268 { 0x5484, 0x51 }, 269 { 0x5485, 0x65 }, 270 { 0x5486, 0x71 }, 271 { 0x5487, 0x7d }, 272 { 0x5488, 0x87 }, 273 { 0x5489, 0x91 }, 274 { 0x548a, 0x9a }, 275 { 0x548b, 0xaa }, 276 { 0x548c, 0xb8 }, 277 { 0x548d, 0xcd }, 278 { 0x548e, 0xdd }, 279 { 0x548f, 0xea }, 280 { 0x5490, 0x1d }, 281 { 0x5580, 0x02 }, 282 { 0x5583, 0x40 }, 283 { 0x5584, 0x10 }, 284 { 0x5589, 0x10 }, 285 { 0x558a, 0x00 }, 286 { 0x558b, 0xf8 }, 287 { 0x5800, 0x3f }, 288 { 0x5801, 0x16 }, 289 { 0x5802, 0x0e }, 290 { 0x5803, 0x0d }, 291 { 0x5804, 0x17 }, 292 { 0x5805, 0x3f }, 293 { 0x5806, 0x0b }, 294 { 0x5807, 0x06 }, 295 { 0x5808, 0x04 }, 296 { 0x5809, 0x04 }, 297 { 0x580a, 0x06 }, 298 { 0x580b, 0x0b }, 299 { 0x580c, 0x09 }, 300 { 0x580d, 0x03 }, 301 { 0x580e, 0x00 }, 302 { 0x580f, 0x00 }, 303 { 0x5810, 0x03 }, 304 { 0x5811, 0x08 }, 305 { 0x5812, 0x0a }, 306 { 0x5813, 0x03 }, 307 { 0x5814, 0x00 }, 308 { 0x5815, 0x00 }, 309 { 0x5816, 0x04 }, 310 { 0x5817, 0x09 }, 311 { 0x5818, 0x0f }, 312 { 0x5819, 0x08 }, 313 { 0x581a, 0x06 }, 314 { 0x581b, 0x06 }, 315 { 0x581c, 0x08 }, 316 { 0x581d, 0x0c }, 317 { 0x581e, 0x3f }, 318 { 0x581f, 0x1e }, 319 { 0x5820, 0x12 }, 320 { 0x5821, 0x13 }, 321 { 0x5822, 0x21 }, 322 { 0x5823, 0x3f }, 323 { 0x5824, 0x68 }, 324 { 0x5825, 0x28 }, 325 { 0x5826, 0x2c }, 326 { 0x5827, 0x28 }, 327 { 0x5828, 0x08 }, 328 { 0x5829, 0x48 }, 329 { 0x582a, 0x64 }, 330 { 0x582b, 0x62 }, 331 { 0x582c, 0x64 }, 332 { 0x582d, 0x28 }, 333 { 0x582e, 0x46 }, 334 { 0x582f, 0x62 }, 335 { 0x5830, 0x60 }, 336 { 0x5831, 0x62 }, 337 { 0x5832, 0x26 }, 338 { 0x5833, 0x48 }, 339 { 0x5834, 0x66 }, 340 { 0x5835, 0x44 }, 341 { 0x5836, 0x64 }, 342 { 0x5837, 0x28 }, 343 { 0x5838, 0x66 }, 344 { 0x5839, 0x48 }, 345 { 0x583a, 0x2c }, 346 { 0x583b, 0x28 }, 347 { 0x583c, 0x26 }, 348 { 0x583d, 0xae }, 349 { 0x5025, 0x00 }, 350 { 0x3a0f, 0x30 }, 351 { 0x3a10, 0x28 }, 352 { 0x3a1b, 0x30 }, 353 { 0x3a1e, 0x26 }, 354 { 0x3a11, 0x60 }, 355 { 0x3a1f, 0x14 }, 356 { 0x0601, 0x02 }, 357 { 0x3008, 0x42 }, 358 { 0x3008, 0x02 }, 359 { OV5645_IO_MIPI_CTRL00, 0x40 }, 360 { OV5645_MIPI_CTRL00, 0x24 }, 361 { OV5645_PAD_OUTPUT00, 0x70 } 362 }; 363 364 static const struct reg_value ov5645_setting_sxga[] = { 365 { 0x3612, 0xa9 }, 366 { 0x3614, 0x50 }, 367 { 0x3618, 0x00 }, 368 { 0x3034, 0x18 }, 369 { 0x3035, 0x21 }, 370 { 0x3036, 0x70 }, 371 { 0x3600, 0x09 }, 372 { 0x3601, 0x43 }, 373 { 0x3708, 0x66 }, 374 { 0x370c, 0xc3 }, 375 { 0x3800, 0x00 }, 376 { 0x3801, 0x00 }, 377 { 0x3802, 0x00 }, 378 { 0x3803, 0x06 }, 379 { 0x3804, 0x0a }, 380 { 0x3805, 0x3f }, 381 { 0x3806, 0x07 }, 382 { 0x3807, 0x9d }, 383 { 0x3808, 0x05 }, 384 { 0x3809, 0x00 }, 385 { 0x380a, 0x03 }, 386 { 0x380b, 0xc0 }, 387 { 0x380c, 0x07 }, 388 { 0x380d, 0x68 }, 389 { 0x380e, 0x03 }, 390 { 0x380f, 0xd8 }, 391 { 0x3813, 0x06 }, 392 { 0x3814, 0x31 }, 393 { 0x3815, 0x31 }, 394 { 0x3820, 0x47 }, 395 { 0x3a02, 0x03 }, 396 { 0x3a03, 0xd8 }, 397 { 0x3a08, 0x01 }, 398 { 0x3a09, 0xf8 }, 399 { 0x3a0a, 0x01 }, 400 { 0x3a0b, 0xa4 }, 401 { 0x3a0e, 0x02 }, 402 { 0x3a0d, 0x02 }, 403 { 0x3a14, 0x03 }, 404 { 0x3a15, 0xd8 }, 405 { 0x3a18, 0x00 }, 406 { 0x4004, 0x02 }, 407 { 0x4005, 0x18 }, 408 { 0x4300, 0x32 }, 409 { 0x4202, 0x00 } 410 }; 411 412 static const struct reg_value ov5645_setting_1080p[] = { 413 { 0x3612, 0xab }, 414 { 0x3614, 0x50 }, 415 { 0x3618, 0x04 }, 416 { 0x3034, 0x18 }, 417 { 0x3035, 0x11 }, 418 { 0x3036, 0x54 }, 419 { 0x3600, 0x08 }, 420 { 0x3601, 0x33 }, 421 { 0x3708, 0x63 }, 422 { 0x370c, 0xc0 }, 423 { 0x3800, 0x01 }, 424 { 0x3801, 0x50 }, 425 { 0x3802, 0x01 }, 426 { 0x3803, 0xb2 }, 427 { 0x3804, 0x08 }, 428 { 0x3805, 0xef }, 429 { 0x3806, 0x05 }, 430 { 0x3807, 0xf1 }, 431 { 0x3808, 0x07 }, 432 { 0x3809, 0x80 }, 433 { 0x380a, 0x04 }, 434 { 0x380b, 0x38 }, 435 { 0x380c, 0x09 }, 436 { 0x380d, 0xc4 }, 437 { 0x380e, 0x04 }, 438 { 0x380f, 0x60 }, 439 { 0x3813, 0x04 }, 440 { 0x3814, 0x11 }, 441 { 0x3815, 0x11 }, 442 { 0x3820, 0x47 }, 443 { 0x4514, 0x88 }, 444 { 0x3a02, 0x04 }, 445 { 0x3a03, 0x60 }, 446 { 0x3a08, 0x01 }, 447 { 0x3a09, 0x50 }, 448 { 0x3a0a, 0x01 }, 449 { 0x3a0b, 0x18 }, 450 { 0x3a0e, 0x03 }, 451 { 0x3a0d, 0x04 }, 452 { 0x3a14, 0x04 }, 453 { 0x3a15, 0x60 }, 454 { 0x3a18, 0x00 }, 455 { 0x4004, 0x06 }, 456 { 0x4005, 0x18 }, 457 { 0x4300, 0x32 }, 458 { 0x4202, 0x00 }, 459 { 0x4837, 0x0b } 460 }; 461 462 static const struct reg_value ov5645_setting_full[] = { 463 { 0x3612, 0xab }, 464 { 0x3614, 0x50 }, 465 { 0x3618, 0x04 }, 466 { 0x3034, 0x18 }, 467 { 0x3035, 0x11 }, 468 { 0x3036, 0x54 }, 469 { 0x3600, 0x08 }, 470 { 0x3601, 0x33 }, 471 { 0x3708, 0x63 }, 472 { 0x370c, 0xc0 }, 473 { 0x3800, 0x00 }, 474 { 0x3801, 0x00 }, 475 { 0x3802, 0x00 }, 476 { 0x3803, 0x00 }, 477 { 0x3804, 0x0a }, 478 { 0x3805, 0x3f }, 479 { 0x3806, 0x07 }, 480 { 0x3807, 0x9f }, 481 { 0x3808, 0x0a }, 482 { 0x3809, 0x20 }, 483 { 0x380a, 0x07 }, 484 { 0x380b, 0x98 }, 485 { 0x380c, 0x0b }, 486 { 0x380d, 0x1c }, 487 { 0x380e, 0x07 }, 488 { 0x380f, 0xb0 }, 489 { 0x3813, 0x06 }, 490 { 0x3814, 0x11 }, 491 { 0x3815, 0x11 }, 492 { 0x3820, 0x47 }, 493 { 0x4514, 0x88 }, 494 { 0x3a02, 0x07 }, 495 { 0x3a03, 0xb0 }, 496 { 0x3a08, 0x01 }, 497 { 0x3a09, 0x27 }, 498 { 0x3a0a, 0x00 }, 499 { 0x3a0b, 0xf6 }, 500 { 0x3a0e, 0x06 }, 501 { 0x3a0d, 0x08 }, 502 { 0x3a14, 0x07 }, 503 { 0x3a15, 0xb0 }, 504 { 0x3a18, 0x01 }, 505 { 0x4004, 0x06 }, 506 { 0x4005, 0x18 }, 507 { 0x4300, 0x32 }, 508 { 0x4837, 0x0b }, 509 { 0x4202, 0x00 } 510 }; 511 512 static const s64 link_freq[] = { 513 224000000, 514 336000000 515 }; 516 517 static const struct ov5645_mode_info ov5645_mode_info_data[] = { 518 { 519 .width = 1280, 520 .height = 960, 521 .data = ov5645_setting_sxga, 522 .data_size = ARRAY_SIZE(ov5645_setting_sxga), 523 .pixel_clock = 112000000, 524 .link_freq = 0 /* an index in link_freq[] */ 525 }, 526 { 527 .width = 1920, 528 .height = 1080, 529 .data = ov5645_setting_1080p, 530 .data_size = ARRAY_SIZE(ov5645_setting_1080p), 531 .pixel_clock = 168000000, 532 .link_freq = 1 /* an index in link_freq[] */ 533 }, 534 { 535 .width = 2592, 536 .height = 1944, 537 .data = ov5645_setting_full, 538 .data_size = ARRAY_SIZE(ov5645_setting_full), 539 .pixel_clock = 168000000, 540 .link_freq = 1 /* an index in link_freq[] */ 541 }, 542 }; 543 544 static int ov5645_write_reg(struct ov5645 *ov5645, u16 reg, u8 val) 545 { 546 u8 regbuf[3]; 547 int ret; 548 549 regbuf[0] = reg >> 8; 550 regbuf[1] = reg & 0xff; 551 regbuf[2] = val; 552 553 ret = i2c_master_send(ov5645->i2c_client, regbuf, 3); 554 if (ret < 0) { 555 dev_err(ov5645->dev, "%s: write reg error %d: reg=%x, val=%x\n", 556 __func__, ret, reg, val); 557 return ret; 558 } 559 560 return 0; 561 } 562 563 static int ov5645_read_reg(struct ov5645 *ov5645, u16 reg, u8 *val) 564 { 565 u8 regbuf[2]; 566 int ret; 567 568 regbuf[0] = reg >> 8; 569 regbuf[1] = reg & 0xff; 570 571 ret = i2c_master_send(ov5645->i2c_client, regbuf, 2); 572 if (ret < 0) { 573 dev_err(ov5645->dev, "%s: write reg error %d: reg=%x\n", 574 __func__, ret, reg); 575 return ret; 576 } 577 578 ret = i2c_master_recv(ov5645->i2c_client, val, 1); 579 if (ret < 0) { 580 dev_err(ov5645->dev, "%s: read reg error %d: reg=%x\n", 581 __func__, ret, reg); 582 return ret; 583 } 584 585 return 0; 586 } 587 588 static int ov5645_set_aec_mode(struct ov5645 *ov5645, u32 mode) 589 { 590 u8 val = ov5645->aec_pk_manual; 591 int ret; 592 593 if (mode == V4L2_EXPOSURE_AUTO) 594 val &= ~OV5645_AEC_MANUAL_ENABLE; 595 else /* V4L2_EXPOSURE_MANUAL */ 596 val |= OV5645_AEC_MANUAL_ENABLE; 597 598 ret = ov5645_write_reg(ov5645, OV5645_AEC_PK_MANUAL, val); 599 if (!ret) 600 ov5645->aec_pk_manual = val; 601 602 return ret; 603 } 604 605 static int ov5645_set_agc_mode(struct ov5645 *ov5645, u32 enable) 606 { 607 u8 val = ov5645->aec_pk_manual; 608 int ret; 609 610 if (enable) 611 val &= ~OV5645_AGC_MANUAL_ENABLE; 612 else 613 val |= OV5645_AGC_MANUAL_ENABLE; 614 615 ret = ov5645_write_reg(ov5645, OV5645_AEC_PK_MANUAL, val); 616 if (!ret) 617 ov5645->aec_pk_manual = val; 618 619 return ret; 620 } 621 622 static int ov5645_set_register_array(struct ov5645 *ov5645, 623 const struct reg_value *settings, 624 unsigned int num_settings) 625 { 626 unsigned int i; 627 int ret; 628 629 for (i = 0; i < num_settings; ++i, ++settings) { 630 ret = ov5645_write_reg(ov5645, settings->reg, settings->val); 631 if (ret < 0) 632 return ret; 633 } 634 635 return 0; 636 } 637 638 static int ov5645_set_power_on(struct ov5645 *ov5645) 639 { 640 int ret; 641 642 ret = regulator_bulk_enable(OV5645_NUM_SUPPLIES, ov5645->supplies); 643 if (ret < 0) 644 return ret; 645 646 ret = clk_prepare_enable(ov5645->xclk); 647 if (ret < 0) { 648 dev_err(ov5645->dev, "clk prepare enable failed\n"); 649 regulator_bulk_disable(OV5645_NUM_SUPPLIES, ov5645->supplies); 650 return ret; 651 } 652 653 usleep_range(5000, 15000); 654 gpiod_set_value_cansleep(ov5645->enable_gpio, 1); 655 656 usleep_range(1000, 2000); 657 gpiod_set_value_cansleep(ov5645->rst_gpio, 0); 658 659 msleep(20); 660 661 return 0; 662 } 663 664 static void ov5645_set_power_off(struct ov5645 *ov5645) 665 { 666 gpiod_set_value_cansleep(ov5645->rst_gpio, 1); 667 gpiod_set_value_cansleep(ov5645->enable_gpio, 0); 668 clk_disable_unprepare(ov5645->xclk); 669 regulator_bulk_disable(OV5645_NUM_SUPPLIES, ov5645->supplies); 670 } 671 672 static int ov5645_s_power(struct v4l2_subdev *sd, int on) 673 { 674 struct ov5645 *ov5645 = to_ov5645(sd); 675 int ret = 0; 676 677 mutex_lock(&ov5645->power_lock); 678 679 /* If the power count is modified from 0 to != 0 or from != 0 to 0, 680 * update the power state. 681 */ 682 if (ov5645->power_count == !on) { 683 if (on) { 684 ret = ov5645_set_power_on(ov5645); 685 if (ret < 0) 686 goto exit; 687 688 ret = ov5645_set_register_array(ov5645, 689 ov5645_global_init_setting, 690 ARRAY_SIZE(ov5645_global_init_setting)); 691 if (ret < 0) { 692 dev_err(ov5645->dev, 693 "could not set init registers\n"); 694 ov5645_set_power_off(ov5645); 695 goto exit; 696 } 697 698 usleep_range(500, 1000); 699 } else { 700 ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00, 0x58); 701 ov5645_set_power_off(ov5645); 702 } 703 } 704 705 /* Update the power count. */ 706 ov5645->power_count += on ? 1 : -1; 707 WARN_ON(ov5645->power_count < 0); 708 709 exit: 710 mutex_unlock(&ov5645->power_lock); 711 712 return ret; 713 } 714 715 static int ov5645_set_saturation(struct ov5645 *ov5645, s32 value) 716 { 717 u32 reg_value = (value * 0x10) + 0x40; 718 int ret; 719 720 ret = ov5645_write_reg(ov5645, OV5645_SDE_SAT_U, reg_value); 721 if (ret < 0) 722 return ret; 723 724 return ov5645_write_reg(ov5645, OV5645_SDE_SAT_V, reg_value); 725 } 726 727 static int ov5645_set_hflip(struct ov5645 *ov5645, s32 value) 728 { 729 u8 val = ov5645->timing_tc_reg21; 730 int ret; 731 732 if (value == 0) 733 val &= ~(OV5645_SENSOR_MIRROR); 734 else 735 val |= (OV5645_SENSOR_MIRROR); 736 737 ret = ov5645_write_reg(ov5645, OV5645_TIMING_TC_REG21, val); 738 if (!ret) 739 ov5645->timing_tc_reg21 = val; 740 741 return ret; 742 } 743 744 static int ov5645_set_vflip(struct ov5645 *ov5645, s32 value) 745 { 746 u8 val = ov5645->timing_tc_reg20; 747 int ret; 748 749 if (value == 0) 750 val |= (OV5645_SENSOR_VFLIP | OV5645_ISP_VFLIP); 751 else 752 val &= ~(OV5645_SENSOR_VFLIP | OV5645_ISP_VFLIP); 753 754 ret = ov5645_write_reg(ov5645, OV5645_TIMING_TC_REG20, val); 755 if (!ret) 756 ov5645->timing_tc_reg20 = val; 757 758 return ret; 759 } 760 761 static int ov5645_set_test_pattern(struct ov5645 *ov5645, s32 value) 762 { 763 u8 val = 0; 764 765 if (value) { 766 val = OV5645_SET_TEST_PATTERN(value - 1); 767 val |= OV5645_TEST_PATTERN_ENABLE; 768 } 769 770 return ov5645_write_reg(ov5645, OV5645_PRE_ISP_TEST_SETTING_1, val); 771 } 772 773 static const char * const ov5645_test_pattern_menu[] = { 774 "Disabled", 775 "Vertical Color Bars", 776 "Pseudo-Random Data", 777 "Color Square", 778 "Black Image", 779 }; 780 781 static int ov5645_set_awb(struct ov5645 *ov5645, s32 enable_auto) 782 { 783 u8 val = 0; 784 785 if (!enable_auto) 786 val = OV5645_AWB_MANUAL_ENABLE; 787 788 return ov5645_write_reg(ov5645, OV5645_AWB_MANUAL_CONTROL, val); 789 } 790 791 static int ov5645_s_ctrl(struct v4l2_ctrl *ctrl) 792 { 793 struct ov5645 *ov5645 = container_of(ctrl->handler, 794 struct ov5645, ctrls); 795 int ret; 796 797 mutex_lock(&ov5645->power_lock); 798 if (!ov5645->power_count) { 799 mutex_unlock(&ov5645->power_lock); 800 return 0; 801 } 802 803 switch (ctrl->id) { 804 case V4L2_CID_SATURATION: 805 ret = ov5645_set_saturation(ov5645, ctrl->val); 806 break; 807 case V4L2_CID_AUTO_WHITE_BALANCE: 808 ret = ov5645_set_awb(ov5645, ctrl->val); 809 break; 810 case V4L2_CID_AUTOGAIN: 811 ret = ov5645_set_agc_mode(ov5645, ctrl->val); 812 break; 813 case V4L2_CID_EXPOSURE_AUTO: 814 ret = ov5645_set_aec_mode(ov5645, ctrl->val); 815 break; 816 case V4L2_CID_TEST_PATTERN: 817 ret = ov5645_set_test_pattern(ov5645, ctrl->val); 818 break; 819 case V4L2_CID_HFLIP: 820 ret = ov5645_set_hflip(ov5645, ctrl->val); 821 break; 822 case V4L2_CID_VFLIP: 823 ret = ov5645_set_vflip(ov5645, ctrl->val); 824 break; 825 default: 826 ret = -EINVAL; 827 break; 828 } 829 830 mutex_unlock(&ov5645->power_lock); 831 832 return ret; 833 } 834 835 static const struct v4l2_ctrl_ops ov5645_ctrl_ops = { 836 .s_ctrl = ov5645_s_ctrl, 837 }; 838 839 static int ov5645_enum_mbus_code(struct v4l2_subdev *sd, 840 struct v4l2_subdev_pad_config *cfg, 841 struct v4l2_subdev_mbus_code_enum *code) 842 { 843 if (code->index > 0) 844 return -EINVAL; 845 846 code->code = MEDIA_BUS_FMT_UYVY8_2X8; 847 848 return 0; 849 } 850 851 static int ov5645_enum_frame_size(struct v4l2_subdev *subdev, 852 struct v4l2_subdev_pad_config *cfg, 853 struct v4l2_subdev_frame_size_enum *fse) 854 { 855 if (fse->code != MEDIA_BUS_FMT_UYVY8_2X8) 856 return -EINVAL; 857 858 if (fse->index >= ARRAY_SIZE(ov5645_mode_info_data)) 859 return -EINVAL; 860 861 fse->min_width = ov5645_mode_info_data[fse->index].width; 862 fse->max_width = ov5645_mode_info_data[fse->index].width; 863 fse->min_height = ov5645_mode_info_data[fse->index].height; 864 fse->max_height = ov5645_mode_info_data[fse->index].height; 865 866 return 0; 867 } 868 869 static struct v4l2_mbus_framefmt * 870 __ov5645_get_pad_format(struct ov5645 *ov5645, 871 struct v4l2_subdev_pad_config *cfg, 872 unsigned int pad, 873 enum v4l2_subdev_format_whence which) 874 { 875 switch (which) { 876 case V4L2_SUBDEV_FORMAT_TRY: 877 return v4l2_subdev_get_try_format(&ov5645->sd, cfg, pad); 878 case V4L2_SUBDEV_FORMAT_ACTIVE: 879 return &ov5645->fmt; 880 default: 881 return NULL; 882 } 883 } 884 885 static int ov5645_get_format(struct v4l2_subdev *sd, 886 struct v4l2_subdev_pad_config *cfg, 887 struct v4l2_subdev_format *format) 888 { 889 struct ov5645 *ov5645 = to_ov5645(sd); 890 891 format->format = *__ov5645_get_pad_format(ov5645, cfg, format->pad, 892 format->which); 893 return 0; 894 } 895 896 static struct v4l2_rect * 897 __ov5645_get_pad_crop(struct ov5645 *ov5645, struct v4l2_subdev_pad_config *cfg, 898 unsigned int pad, enum v4l2_subdev_format_whence which) 899 { 900 switch (which) { 901 case V4L2_SUBDEV_FORMAT_TRY: 902 return v4l2_subdev_get_try_crop(&ov5645->sd, cfg, pad); 903 case V4L2_SUBDEV_FORMAT_ACTIVE: 904 return &ov5645->crop; 905 default: 906 return NULL; 907 } 908 } 909 910 static int ov5645_set_format(struct v4l2_subdev *sd, 911 struct v4l2_subdev_pad_config *cfg, 912 struct v4l2_subdev_format *format) 913 { 914 struct ov5645 *ov5645 = to_ov5645(sd); 915 struct v4l2_mbus_framefmt *__format; 916 struct v4l2_rect *__crop; 917 const struct ov5645_mode_info *new_mode; 918 int ret; 919 920 __crop = __ov5645_get_pad_crop(ov5645, cfg, format->pad, 921 format->which); 922 923 new_mode = v4l2_find_nearest_size(ov5645_mode_info_data, 924 ARRAY_SIZE(ov5645_mode_info_data), 925 width, height, 926 format->format.width, format->format.height); 927 928 __crop->width = new_mode->width; 929 __crop->height = new_mode->height; 930 931 if (format->which == V4L2_SUBDEV_FORMAT_ACTIVE) { 932 ret = v4l2_ctrl_s_ctrl_int64(ov5645->pixel_clock, 933 new_mode->pixel_clock); 934 if (ret < 0) 935 return ret; 936 937 ret = v4l2_ctrl_s_ctrl(ov5645->link_freq, 938 new_mode->link_freq); 939 if (ret < 0) 940 return ret; 941 942 ov5645->current_mode = new_mode; 943 } 944 945 __format = __ov5645_get_pad_format(ov5645, cfg, format->pad, 946 format->which); 947 __format->width = __crop->width; 948 __format->height = __crop->height; 949 __format->code = MEDIA_BUS_FMT_UYVY8_2X8; 950 __format->field = V4L2_FIELD_NONE; 951 __format->colorspace = V4L2_COLORSPACE_SRGB; 952 953 format->format = *__format; 954 955 return 0; 956 } 957 958 static int ov5645_entity_init_cfg(struct v4l2_subdev *subdev, 959 struct v4l2_subdev_pad_config *cfg) 960 { 961 struct v4l2_subdev_format fmt = { 0 }; 962 963 fmt.which = cfg ? V4L2_SUBDEV_FORMAT_TRY : V4L2_SUBDEV_FORMAT_ACTIVE; 964 fmt.format.width = 1920; 965 fmt.format.height = 1080; 966 967 ov5645_set_format(subdev, cfg, &fmt); 968 969 return 0; 970 } 971 972 static int ov5645_get_selection(struct v4l2_subdev *sd, 973 struct v4l2_subdev_pad_config *cfg, 974 struct v4l2_subdev_selection *sel) 975 { 976 struct ov5645 *ov5645 = to_ov5645(sd); 977 978 if (sel->target != V4L2_SEL_TGT_CROP) 979 return -EINVAL; 980 981 sel->r = *__ov5645_get_pad_crop(ov5645, cfg, sel->pad, 982 sel->which); 983 return 0; 984 } 985 986 static int ov5645_s_stream(struct v4l2_subdev *subdev, int enable) 987 { 988 struct ov5645 *ov5645 = to_ov5645(subdev); 989 int ret; 990 991 if (enable) { 992 ret = ov5645_set_register_array(ov5645, 993 ov5645->current_mode->data, 994 ov5645->current_mode->data_size); 995 if (ret < 0) { 996 dev_err(ov5645->dev, "could not set mode %dx%d\n", 997 ov5645->current_mode->width, 998 ov5645->current_mode->height); 999 return ret; 1000 } 1001 ret = v4l2_ctrl_handler_setup(&ov5645->ctrls); 1002 if (ret < 0) { 1003 dev_err(ov5645->dev, "could not sync v4l2 controls\n"); 1004 return ret; 1005 } 1006 1007 ret = ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00, 0x45); 1008 if (ret < 0) 1009 return ret; 1010 1011 ret = ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0, 1012 OV5645_SYSTEM_CTRL0_START); 1013 if (ret < 0) 1014 return ret; 1015 } else { 1016 ret = ov5645_write_reg(ov5645, OV5645_IO_MIPI_CTRL00, 0x40); 1017 if (ret < 0) 1018 return ret; 1019 1020 ret = ov5645_write_reg(ov5645, OV5645_SYSTEM_CTRL0, 1021 OV5645_SYSTEM_CTRL0_STOP); 1022 if (ret < 0) 1023 return ret; 1024 } 1025 1026 return 0; 1027 } 1028 1029 static const struct v4l2_subdev_core_ops ov5645_core_ops = { 1030 .s_power = ov5645_s_power, 1031 }; 1032 1033 static const struct v4l2_subdev_video_ops ov5645_video_ops = { 1034 .s_stream = ov5645_s_stream, 1035 }; 1036 1037 static const struct v4l2_subdev_pad_ops ov5645_subdev_pad_ops = { 1038 .init_cfg = ov5645_entity_init_cfg, 1039 .enum_mbus_code = ov5645_enum_mbus_code, 1040 .enum_frame_size = ov5645_enum_frame_size, 1041 .get_fmt = ov5645_get_format, 1042 .set_fmt = ov5645_set_format, 1043 .get_selection = ov5645_get_selection, 1044 }; 1045 1046 static const struct v4l2_subdev_ops ov5645_subdev_ops = { 1047 .core = &ov5645_core_ops, 1048 .video = &ov5645_video_ops, 1049 .pad = &ov5645_subdev_pad_ops, 1050 }; 1051 1052 static int ov5645_probe(struct i2c_client *client) 1053 { 1054 struct device *dev = &client->dev; 1055 struct device_node *endpoint; 1056 struct ov5645 *ov5645; 1057 u8 chip_id_high, chip_id_low; 1058 unsigned int i; 1059 u32 xclk_freq; 1060 int ret; 1061 1062 ov5645 = devm_kzalloc(dev, sizeof(struct ov5645), GFP_KERNEL); 1063 if (!ov5645) 1064 return -ENOMEM; 1065 1066 ov5645->i2c_client = client; 1067 ov5645->dev = dev; 1068 1069 endpoint = of_graph_get_next_endpoint(dev->of_node, NULL); 1070 if (!endpoint) { 1071 dev_err(dev, "endpoint node not found\n"); 1072 return -EINVAL; 1073 } 1074 1075 ret = v4l2_fwnode_endpoint_parse(of_fwnode_handle(endpoint), 1076 &ov5645->ep); 1077 1078 of_node_put(endpoint); 1079 1080 if (ret < 0) { 1081 dev_err(dev, "parsing endpoint node failed\n"); 1082 return ret; 1083 } 1084 1085 if (ov5645->ep.bus_type != V4L2_MBUS_CSI2_DPHY) { 1086 dev_err(dev, "invalid bus type, must be CSI2\n"); 1087 return -EINVAL; 1088 } 1089 1090 /* get system clock (xclk) */ 1091 ov5645->xclk = devm_clk_get(dev, "xclk"); 1092 if (IS_ERR(ov5645->xclk)) { 1093 dev_err(dev, "could not get xclk"); 1094 return PTR_ERR(ov5645->xclk); 1095 } 1096 1097 ret = of_property_read_u32(dev->of_node, "clock-frequency", &xclk_freq); 1098 if (ret) { 1099 dev_err(dev, "could not get xclk frequency\n"); 1100 return ret; 1101 } 1102 1103 /* external clock must be 24MHz, allow 1% tolerance */ 1104 if (xclk_freq < 23760000 || xclk_freq > 24240000) { 1105 dev_err(dev, "external clock frequency %u is not supported\n", 1106 xclk_freq); 1107 return -EINVAL; 1108 } 1109 1110 ret = clk_set_rate(ov5645->xclk, xclk_freq); 1111 if (ret) { 1112 dev_err(dev, "could not set xclk frequency\n"); 1113 return ret; 1114 } 1115 1116 for (i = 0; i < OV5645_NUM_SUPPLIES; i++) 1117 ov5645->supplies[i].supply = ov5645_supply_name[i]; 1118 1119 ret = devm_regulator_bulk_get(dev, OV5645_NUM_SUPPLIES, 1120 ov5645->supplies); 1121 if (ret < 0) 1122 return ret; 1123 1124 ov5645->enable_gpio = devm_gpiod_get(dev, "enable", GPIOD_OUT_HIGH); 1125 if (IS_ERR(ov5645->enable_gpio)) { 1126 dev_err(dev, "cannot get enable gpio\n"); 1127 return PTR_ERR(ov5645->enable_gpio); 1128 } 1129 1130 ov5645->rst_gpio = devm_gpiod_get(dev, "reset", GPIOD_OUT_HIGH); 1131 if (IS_ERR(ov5645->rst_gpio)) { 1132 dev_err(dev, "cannot get reset gpio\n"); 1133 return PTR_ERR(ov5645->rst_gpio); 1134 } 1135 1136 mutex_init(&ov5645->power_lock); 1137 1138 v4l2_ctrl_handler_init(&ov5645->ctrls, 9); 1139 v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops, 1140 V4L2_CID_SATURATION, -4, 4, 1, 0); 1141 v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops, 1142 V4L2_CID_HFLIP, 0, 1, 1, 0); 1143 v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops, 1144 V4L2_CID_VFLIP, 0, 1, 1, 0); 1145 v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops, 1146 V4L2_CID_AUTOGAIN, 0, 1, 1, 1); 1147 v4l2_ctrl_new_std(&ov5645->ctrls, &ov5645_ctrl_ops, 1148 V4L2_CID_AUTO_WHITE_BALANCE, 0, 1, 1, 1); 1149 v4l2_ctrl_new_std_menu(&ov5645->ctrls, &ov5645_ctrl_ops, 1150 V4L2_CID_EXPOSURE_AUTO, V4L2_EXPOSURE_MANUAL, 1151 0, V4L2_EXPOSURE_AUTO); 1152 v4l2_ctrl_new_std_menu_items(&ov5645->ctrls, &ov5645_ctrl_ops, 1153 V4L2_CID_TEST_PATTERN, 1154 ARRAY_SIZE(ov5645_test_pattern_menu) - 1, 1155 0, 0, ov5645_test_pattern_menu); 1156 ov5645->pixel_clock = v4l2_ctrl_new_std(&ov5645->ctrls, 1157 &ov5645_ctrl_ops, 1158 V4L2_CID_PIXEL_RATE, 1159 1, INT_MAX, 1, 1); 1160 ov5645->link_freq = v4l2_ctrl_new_int_menu(&ov5645->ctrls, 1161 &ov5645_ctrl_ops, 1162 V4L2_CID_LINK_FREQ, 1163 ARRAY_SIZE(link_freq) - 1, 1164 0, link_freq); 1165 if (ov5645->link_freq) 1166 ov5645->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; 1167 1168 ov5645->sd.ctrl_handler = &ov5645->ctrls; 1169 1170 if (ov5645->ctrls.error) { 1171 dev_err(dev, "%s: control initialization error %d\n", 1172 __func__, ov5645->ctrls.error); 1173 ret = ov5645->ctrls.error; 1174 goto free_ctrl; 1175 } 1176 1177 v4l2_i2c_subdev_init(&ov5645->sd, client, &ov5645_subdev_ops); 1178 ov5645->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; 1179 ov5645->pad.flags = MEDIA_PAD_FL_SOURCE; 1180 ov5645->sd.dev = &client->dev; 1181 ov5645->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; 1182 1183 ret = media_entity_pads_init(&ov5645->sd.entity, 1, &ov5645->pad); 1184 if (ret < 0) { 1185 dev_err(dev, "could not register media entity\n"); 1186 goto free_ctrl; 1187 } 1188 1189 ret = ov5645_s_power(&ov5645->sd, true); 1190 if (ret < 0) { 1191 dev_err(dev, "could not power up OV5645\n"); 1192 goto free_entity; 1193 } 1194 1195 ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_HIGH, &chip_id_high); 1196 if (ret < 0 || chip_id_high != OV5645_CHIP_ID_HIGH_BYTE) { 1197 dev_err(dev, "could not read ID high\n"); 1198 ret = -ENODEV; 1199 goto power_down; 1200 } 1201 ret = ov5645_read_reg(ov5645, OV5645_CHIP_ID_LOW, &chip_id_low); 1202 if (ret < 0 || chip_id_low != OV5645_CHIP_ID_LOW_BYTE) { 1203 dev_err(dev, "could not read ID low\n"); 1204 ret = -ENODEV; 1205 goto power_down; 1206 } 1207 1208 dev_info(dev, "OV5645 detected at address 0x%02x\n", client->addr); 1209 1210 ret = ov5645_read_reg(ov5645, OV5645_AEC_PK_MANUAL, 1211 &ov5645->aec_pk_manual); 1212 if (ret < 0) { 1213 dev_err(dev, "could not read AEC/AGC mode\n"); 1214 ret = -ENODEV; 1215 goto power_down; 1216 } 1217 1218 ret = ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG20, 1219 &ov5645->timing_tc_reg20); 1220 if (ret < 0) { 1221 dev_err(dev, "could not read vflip value\n"); 1222 ret = -ENODEV; 1223 goto power_down; 1224 } 1225 1226 ret = ov5645_read_reg(ov5645, OV5645_TIMING_TC_REG21, 1227 &ov5645->timing_tc_reg21); 1228 if (ret < 0) { 1229 dev_err(dev, "could not read hflip value\n"); 1230 ret = -ENODEV; 1231 goto power_down; 1232 } 1233 1234 ov5645_s_power(&ov5645->sd, false); 1235 1236 ret = v4l2_async_register_subdev(&ov5645->sd); 1237 if (ret < 0) { 1238 dev_err(dev, "could not register v4l2 device\n"); 1239 goto free_entity; 1240 } 1241 1242 ov5645_entity_init_cfg(&ov5645->sd, NULL); 1243 1244 return 0; 1245 1246 power_down: 1247 ov5645_s_power(&ov5645->sd, false); 1248 free_entity: 1249 media_entity_cleanup(&ov5645->sd.entity); 1250 free_ctrl: 1251 v4l2_ctrl_handler_free(&ov5645->ctrls); 1252 mutex_destroy(&ov5645->power_lock); 1253 1254 return ret; 1255 } 1256 1257 static int ov5645_remove(struct i2c_client *client) 1258 { 1259 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1260 struct ov5645 *ov5645 = to_ov5645(sd); 1261 1262 v4l2_async_unregister_subdev(&ov5645->sd); 1263 media_entity_cleanup(&ov5645->sd.entity); 1264 v4l2_ctrl_handler_free(&ov5645->ctrls); 1265 mutex_destroy(&ov5645->power_lock); 1266 1267 return 0; 1268 } 1269 1270 static const struct i2c_device_id ov5645_id[] = { 1271 { "ov5645", 0 }, 1272 {} 1273 }; 1274 MODULE_DEVICE_TABLE(i2c, ov5645_id); 1275 1276 static const struct of_device_id ov5645_of_match[] = { 1277 { .compatible = "ovti,ov5645" }, 1278 { /* sentinel */ } 1279 }; 1280 MODULE_DEVICE_TABLE(of, ov5645_of_match); 1281 1282 static struct i2c_driver ov5645_i2c_driver = { 1283 .driver = { 1284 .of_match_table = of_match_ptr(ov5645_of_match), 1285 .name = "ov5645", 1286 }, 1287 .probe_new = ov5645_probe, 1288 .remove = ov5645_remove, 1289 .id_table = ov5645_id, 1290 }; 1291 1292 module_i2c_driver(ov5645_i2c_driver); 1293 1294 MODULE_DESCRIPTION("Omnivision OV5645 Camera Driver"); 1295 MODULE_AUTHOR("Todor Tomov <todor.tomov@linaro.org>"); 1296 MODULE_LICENSE("GPL v2"); 1297