1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (c) 2021 Purism SPC 3 4 #include <asm/unaligned.h> 5 #include <linux/clk.h> 6 #include <linux/delay.h> 7 #include <linux/gpio/consumer.h> 8 #include <linux/i2c.h> 9 #include <linux/module.h> 10 #include <linux/pm_runtime.h> 11 #include <linux/pm.h> 12 #include <linux/property.h> 13 #include <linux/regulator/consumer.h> 14 #include <media/v4l2-ctrls.h> 15 #include <media/v4l2-device.h> 16 #include <media/v4l2-fwnode.h> 17 18 #define HI846_MEDIA_BUS_FORMAT MEDIA_BUS_FMT_SGBRG10_1X10 19 #define HI846_RGB_DEPTH 10 20 21 /* Frame length lines / vertical timings */ 22 #define HI846_REG_FLL 0x0006 23 #define HI846_FLL_MAX 0xffff 24 25 /* Horizontal timing */ 26 #define HI846_REG_LLP 0x0008 27 #define HI846_LINE_LENGTH 3800 28 29 #define HI846_REG_BINNING_MODE 0x000c 30 31 #define HI846_REG_IMAGE_ORIENTATION 0x000e 32 33 #define HI846_REG_UNKNOWN_0022 0x0022 34 35 #define HI846_REG_Y_ADDR_START_VACT_H 0x0026 36 #define HI846_REG_Y_ADDR_START_VACT_L 0x0027 37 #define HI846_REG_UNKNOWN_0028 0x0028 38 39 #define HI846_REG_Y_ADDR_END_VACT_H 0x002c 40 #define HI846_REG_Y_ADDR_END_VACT_L 0x002d 41 42 #define HI846_REG_Y_ODD_INC_FOBP 0x002e 43 #define HI846_REG_Y_EVEN_INC_FOBP 0x002f 44 45 #define HI846_REG_Y_ODD_INC_VACT 0x0032 46 #define HI846_REG_Y_EVEN_INC_VACT 0x0033 47 48 #define HI846_REG_GROUPED_PARA_HOLD 0x0046 49 50 #define HI846_REG_TG_ENABLE 0x004c 51 52 #define HI846_REG_UNKNOWN_005C 0x005c 53 54 #define HI846_REG_UNKNOWN_006A 0x006a 55 56 /* 57 * Long exposure time. Actually, exposure is a 20 bit value that 58 * includes the lower 4 bits of 0x0073 too. Only 16 bits are used 59 * right now 60 */ 61 #define HI846_REG_EXPOSURE 0x0074 62 #define HI846_EXPOSURE_MIN 6 63 #define HI846_EXPOSURE_MAX_MARGIN 2 64 #define HI846_EXPOSURE_STEP 1 65 66 /* Analog gain controls from sensor */ 67 #define HI846_REG_ANALOG_GAIN 0x0077 68 #define HI846_ANAL_GAIN_MIN 0 69 #define HI846_ANAL_GAIN_MAX 240 70 #define HI846_ANAL_GAIN_STEP 8 71 72 /* Digital gain controls from sensor */ 73 #define HI846_REG_MWB_GR_GAIN_H 0x0078 74 #define HI846_REG_MWB_GR_GAIN_L 0x0079 75 #define HI846_REG_MWB_GB_GAIN_H 0x007a 76 #define HI846_REG_MWB_GB_GAIN_L 0x007b 77 #define HI846_REG_MWB_R_GAIN_H 0x007c 78 #define HI846_REG_MWB_R_GAIN_L 0x007d 79 #define HI846_REG_MWB_B_GAIN_H 0x007e 80 #define HI846_REG_MWB_B_GAIN_L 0x007f 81 #define HI846_DGTL_GAIN_MIN 512 82 #define HI846_DGTL_GAIN_MAX 8191 83 #define HI846_DGTL_GAIN_STEP 1 84 #define HI846_DGTL_GAIN_DEFAULT 512 85 86 #define HI846_REG_X_ADDR_START_HACT_H 0x0120 87 #define HI846_REG_X_ADDR_END_HACT_H 0x0122 88 89 #define HI846_REG_UNKNOWN_012A 0x012a 90 91 #define HI846_REG_UNKNOWN_0200 0x0200 92 93 #define HI846_REG_UNKNOWN_021C 0x021c 94 #define HI846_REG_UNKNOWN_021E 0x021e 95 96 #define HI846_REG_UNKNOWN_0402 0x0402 97 #define HI846_REG_UNKNOWN_0404 0x0404 98 #define HI846_REG_UNKNOWN_0408 0x0408 99 #define HI846_REG_UNKNOWN_0410 0x0410 100 #define HI846_REG_UNKNOWN_0412 0x0412 101 #define HI846_REG_UNKNOWN_0414 0x0414 102 103 #define HI846_REG_UNKNOWN_0418 0x0418 104 105 #define HI846_REG_UNKNOWN_051E 0x051e 106 107 /* Formatter */ 108 #define HI846_REG_X_START_H 0x0804 109 #define HI846_REG_X_START_L 0x0805 110 111 /* MIPI */ 112 #define HI846_REG_UNKNOWN_0900 0x0900 113 #define HI846_REG_MIPI_TX_OP_EN 0x0901 114 #define HI846_REG_MIPI_TX_OP_MODE 0x0902 115 #define HI846_RAW8 BIT(5) 116 117 #define HI846_REG_UNKNOWN_090C 0x090c 118 #define HI846_REG_UNKNOWN_090E 0x090e 119 120 #define HI846_REG_UNKNOWN_0914 0x0914 121 #define HI846_REG_TLPX 0x0915 122 #define HI846_REG_TCLK_PREPARE 0x0916 123 #define HI846_REG_TCLK_ZERO 0x0917 124 #define HI846_REG_UNKNOWN_0918 0x0918 125 #define HI846_REG_THS_PREPARE 0x0919 126 #define HI846_REG_THS_ZERO 0x091a 127 #define HI846_REG_THS_TRAIL 0x091b 128 #define HI846_REG_TCLK_POST 0x091c 129 #define HI846_REG_TCLK_TRAIL_MIN 0x091d 130 #define HI846_REG_UNKNOWN_091E 0x091e 131 132 #define HI846_REG_UNKNOWN_0954 0x0954 133 #define HI846_REG_UNKNOWN_0956 0x0956 134 #define HI846_REG_UNKNOWN_0958 0x0958 135 #define HI846_REG_UNKNOWN_095A 0x095a 136 137 /* ISP Common */ 138 #define HI846_REG_MODE_SELECT 0x0a00 139 #define HI846_MODE_STANDBY 0x00 140 #define HI846_MODE_STREAMING 0x01 141 #define HI846_REG_FAST_STANDBY_MODE 0x0a02 142 #define HI846_REG_ISP_EN_H 0x0a04 143 144 /* Test Pattern Control */ 145 #define HI846_REG_ISP 0x0a05 146 #define HI846_REG_ISP_TPG_EN 0x01 147 #define HI846_REG_TEST_PATTERN 0x020a /* 1-9 */ 148 149 #define HI846_REG_UNKNOWN_0A0C 0x0a0c 150 151 /* Windowing */ 152 #define HI846_REG_X_OUTPUT_SIZE_H 0x0a12 153 #define HI846_REG_X_OUTPUT_SIZE_L 0x0a13 154 #define HI846_REG_Y_OUTPUT_SIZE_H 0x0a14 155 #define HI846_REG_Y_OUTPUT_SIZE_L 0x0a15 156 157 /* ISP Common */ 158 #define HI846_REG_PEDESTAL_EN 0x0a1a 159 160 #define HI846_REG_UNKNOWN_0A1E 0x0a1e 161 162 /* Horizontal Binning Mode */ 163 #define HI846_REG_HBIN_MODE 0x0a22 164 165 #define HI846_REG_UNKNOWN_0A24 0x0a24 166 #define HI846_REG_UNKNOWN_0B02 0x0b02 167 #define HI846_REG_UNKNOWN_0B10 0x0b10 168 #define HI846_REG_UNKNOWN_0B12 0x0b12 169 #define HI846_REG_UNKNOWN_0B14 0x0b14 170 171 /* BLC (Black Level Calibration) */ 172 #define HI846_REG_BLC_CTL0 0x0c00 173 174 #define HI846_REG_UNKNOWN_0C06 0x0c06 175 #define HI846_REG_UNKNOWN_0C10 0x0c10 176 #define HI846_REG_UNKNOWN_0C12 0x0c12 177 #define HI846_REG_UNKNOWN_0C14 0x0c14 178 #define HI846_REG_UNKNOWN_0C16 0x0c16 179 180 #define HI846_REG_UNKNOWN_0E04 0x0e04 181 182 #define HI846_REG_CHIP_ID_L 0x0f16 183 #define HI846_REG_CHIP_ID_H 0x0f17 184 #define HI846_CHIP_ID_L 0x46 185 #define HI846_CHIP_ID_H 0x08 186 187 #define HI846_REG_UNKNOWN_0F04 0x0f04 188 #define HI846_REG_UNKNOWN_0F08 0x0f08 189 190 /* PLL */ 191 #define HI846_REG_PLL_CFG_MIPI2_H 0x0f2a 192 #define HI846_REG_PLL_CFG_MIPI2_L 0x0f2b 193 194 #define HI846_REG_UNKNOWN_0F30 0x0f30 195 #define HI846_REG_PLL_CFG_RAMP1_H 0x0f32 196 #define HI846_REG_UNKNOWN_0F36 0x0f36 197 #define HI846_REG_PLL_CFG_MIPI1_H 0x0f38 198 199 #define HI846_REG_UNKNOWN_2008 0x2008 200 #define HI846_REG_UNKNOWN_326E 0x326e 201 202 struct hi846_reg { 203 u16 address; 204 u16 val; 205 }; 206 207 struct hi846_reg_list { 208 u32 num_of_regs; 209 const struct hi846_reg *regs; 210 }; 211 212 struct hi846_mode { 213 /* Frame width in pixels */ 214 u32 width; 215 216 /* Frame height in pixels */ 217 u32 height; 218 219 /* Horizontal timing size */ 220 u32 llp; 221 222 /* Link frequency needed for this resolution */ 223 u8 link_freq_index; 224 225 u16 fps; 226 227 /* Vertical timining size */ 228 u16 frame_len; 229 230 const struct hi846_reg_list reg_list_config; 231 const struct hi846_reg_list reg_list_2lane; 232 const struct hi846_reg_list reg_list_4lane; 233 234 /* Position inside of the 3264x2448 pixel array */ 235 struct v4l2_rect crop; 236 }; 237 238 static const struct hi846_reg hi846_init_2lane[] = { 239 {HI846_REG_MODE_SELECT, 0x0000}, 240 /* regs below are unknown */ 241 {0x2000, 0x100a}, 242 {0x2002, 0x00ff}, 243 {0x2004, 0x0007}, 244 {0x2006, 0x3fff}, 245 {0x2008, 0x3fff}, 246 {0x200a, 0xc216}, 247 {0x200c, 0x1292}, 248 {0x200e, 0xc01a}, 249 {0x2010, 0x403d}, 250 {0x2012, 0x000e}, 251 {0x2014, 0x403e}, 252 {0x2016, 0x0b80}, 253 {0x2018, 0x403f}, 254 {0x201a, 0x82ae}, 255 {0x201c, 0x1292}, 256 {0x201e, 0xc00c}, 257 {0x2020, 0x4130}, 258 {0x2022, 0x43e2}, 259 {0x2024, 0x0180}, 260 {0x2026, 0x4130}, 261 {0x2028, 0x7400}, 262 {0x202a, 0x5000}, 263 {0x202c, 0x0253}, 264 {0x202e, 0x0ad1}, 265 {0x2030, 0x2360}, 266 {0x2032, 0x0009}, 267 {0x2034, 0x5020}, 268 {0x2036, 0x000b}, 269 {0x2038, 0x0002}, 270 {0x203a, 0x0044}, 271 {0x203c, 0x0016}, 272 {0x203e, 0x1792}, 273 {0x2040, 0x7002}, 274 {0x2042, 0x154f}, 275 {0x2044, 0x00d5}, 276 {0x2046, 0x000b}, 277 {0x2048, 0x0019}, 278 {0x204a, 0x1698}, 279 {0x204c, 0x000e}, 280 {0x204e, 0x099a}, 281 {0x2050, 0x0058}, 282 {0x2052, 0x7000}, 283 {0x2054, 0x1799}, 284 {0x2056, 0x0310}, 285 {0x2058, 0x03c3}, 286 {0x205a, 0x004c}, 287 {0x205c, 0x064a}, 288 {0x205e, 0x0001}, 289 {0x2060, 0x0007}, 290 {0x2062, 0x0bc7}, 291 {0x2064, 0x0055}, 292 {0x2066, 0x7000}, 293 {0x2068, 0x1550}, 294 {0x206a, 0x158a}, 295 {0x206c, 0x0004}, 296 {0x206e, 0x1488}, 297 {0x2070, 0x7010}, 298 {0x2072, 0x1508}, 299 {0x2074, 0x0004}, 300 {0x2076, 0x0016}, 301 {0x2078, 0x03d5}, 302 {0x207a, 0x0055}, 303 {0x207c, 0x08ca}, 304 {0x207e, 0x2019}, 305 {0x2080, 0x0007}, 306 {0x2082, 0x7057}, 307 {0x2084, 0x0fc7}, 308 {0x2086, 0x5041}, 309 {0x2088, 0x12c8}, 310 {0x208a, 0x5060}, 311 {0x208c, 0x5080}, 312 {0x208e, 0x2084}, 313 {0x2090, 0x12c8}, 314 {0x2092, 0x7800}, 315 {0x2094, 0x0802}, 316 {0x2096, 0x040f}, 317 {0x2098, 0x1007}, 318 {0x209a, 0x0803}, 319 {0x209c, 0x080b}, 320 {0x209e, 0x3803}, 321 {0x20a0, 0x0807}, 322 {0x20a2, 0x0404}, 323 {0x20a4, 0x0400}, 324 {0x20a6, 0xffff}, 325 {0x20a8, 0xf0b2}, 326 {0x20aa, 0xffef}, 327 {0x20ac, 0x0a84}, 328 {0x20ae, 0x1292}, 329 {0x20b0, 0xc02e}, 330 {0x20b2, 0x4130}, 331 {0x23fe, 0xc056}, 332 {0x3232, 0xfc0c}, 333 {0x3236, 0xfc22}, 334 {0x3248, 0xfca8}, 335 {0x326a, 0x8302}, 336 {0x326c, 0x830a}, 337 {0x326e, 0x0000}, 338 {0x32ca, 0xfc28}, 339 {0x32cc, 0xc3bc}, 340 {0x32ce, 0xc34c}, 341 {0x32d0, 0xc35a}, 342 {0x32d2, 0xc368}, 343 {0x32d4, 0xc376}, 344 {0x32d6, 0xc3c2}, 345 {0x32d8, 0xc3e6}, 346 {0x32da, 0x0003}, 347 {0x32dc, 0x0003}, 348 {0x32de, 0x00c7}, 349 {0x32e0, 0x0031}, 350 {0x32e2, 0x0031}, 351 {0x32e4, 0x0031}, 352 {0x32e6, 0xfc28}, 353 {0x32e8, 0xc3bc}, 354 {0x32ea, 0xc384}, 355 {0x32ec, 0xc392}, 356 {0x32ee, 0xc3a0}, 357 {0x32f0, 0xc3ae}, 358 {0x32f2, 0xc3c4}, 359 {0x32f4, 0xc3e6}, 360 {0x32f6, 0x0003}, 361 {0x32f8, 0x0003}, 362 {0x32fa, 0x00c7}, 363 {0x32fc, 0x0031}, 364 {0x32fe, 0x0031}, 365 {0x3300, 0x0031}, 366 {0x3302, 0x82ca}, 367 {0x3304, 0xc164}, 368 {0x3306, 0x82e6}, 369 {0x3308, 0xc19c}, 370 {0x330a, 0x001f}, 371 {0x330c, 0x001a}, 372 {0x330e, 0x0034}, 373 {0x3310, 0x0000}, 374 {0x3312, 0x0000}, 375 {0x3314, 0xfc94}, 376 {0x3316, 0xc3d8}, 377 /* regs above are unknown */ 378 {HI846_REG_MODE_SELECT, 0x0000}, 379 {HI846_REG_UNKNOWN_0E04, 0x0012}, 380 {HI846_REG_Y_ODD_INC_FOBP, 0x1111}, 381 {HI846_REG_Y_ODD_INC_VACT, 0x1111}, 382 {HI846_REG_UNKNOWN_0022, 0x0008}, 383 {HI846_REG_Y_ADDR_START_VACT_H, 0x0040}, 384 {HI846_REG_UNKNOWN_0028, 0x0017}, 385 {HI846_REG_Y_ADDR_END_VACT_H, 0x09cf}, 386 {HI846_REG_UNKNOWN_005C, 0x2101}, 387 {HI846_REG_FLL, 0x09de}, 388 {HI846_REG_LLP, 0x0ed8}, 389 {HI846_REG_IMAGE_ORIENTATION, 0x0100}, 390 {HI846_REG_BINNING_MODE, 0x0022}, 391 {HI846_REG_HBIN_MODE, 0x0000}, 392 {HI846_REG_UNKNOWN_0A24, 0x0000}, 393 {HI846_REG_X_START_H, 0x0000}, 394 {HI846_REG_X_OUTPUT_SIZE_H, 0x0cc0}, 395 {HI846_REG_Y_OUTPUT_SIZE_H, 0x0990}, 396 {HI846_REG_EXPOSURE, 0x09d8}, 397 {HI846_REG_ANALOG_GAIN, 0x0000}, 398 {HI846_REG_GROUPED_PARA_HOLD, 0x0000}, 399 {HI846_REG_UNKNOWN_051E, 0x0000}, 400 {HI846_REG_UNKNOWN_0200, 0x0400}, 401 {HI846_REG_PEDESTAL_EN, 0x0c00}, 402 {HI846_REG_UNKNOWN_0A0C, 0x0010}, 403 {HI846_REG_UNKNOWN_0A1E, 0x0ccf}, 404 {HI846_REG_UNKNOWN_0402, 0x0110}, 405 {HI846_REG_UNKNOWN_0404, 0x00f4}, 406 {HI846_REG_UNKNOWN_0408, 0x0000}, 407 {HI846_REG_UNKNOWN_0410, 0x008d}, 408 {HI846_REG_UNKNOWN_0412, 0x011a}, 409 {HI846_REG_UNKNOWN_0414, 0x864c}, 410 {HI846_REG_UNKNOWN_021C, 0x0003}, 411 {HI846_REG_UNKNOWN_021E, 0x0235}, 412 {HI846_REG_BLC_CTL0, 0x9150}, 413 {HI846_REG_UNKNOWN_0C06, 0x0021}, 414 {HI846_REG_UNKNOWN_0C10, 0x0040}, 415 {HI846_REG_UNKNOWN_0C12, 0x0040}, 416 {HI846_REG_UNKNOWN_0C14, 0x0040}, 417 {HI846_REG_UNKNOWN_0C16, 0x0040}, 418 {HI846_REG_FAST_STANDBY_MODE, 0x0100}, 419 {HI846_REG_ISP_EN_H, 0x014a}, 420 {HI846_REG_UNKNOWN_0418, 0x0000}, 421 {HI846_REG_UNKNOWN_012A, 0x03b4}, 422 {HI846_REG_X_ADDR_START_HACT_H, 0x0046}, 423 {HI846_REG_X_ADDR_END_HACT_H, 0x0376}, 424 {HI846_REG_UNKNOWN_0B02, 0xe04d}, 425 {HI846_REG_UNKNOWN_0B10, 0x6821}, 426 {HI846_REG_UNKNOWN_0B12, 0x0120}, 427 {HI846_REG_UNKNOWN_0B14, 0x0001}, 428 {HI846_REG_UNKNOWN_2008, 0x38fd}, 429 {HI846_REG_UNKNOWN_326E, 0x0000}, 430 {HI846_REG_UNKNOWN_0900, 0x0320}, 431 {HI846_REG_MIPI_TX_OP_MODE, 0xc31a}, 432 {HI846_REG_UNKNOWN_0914, 0xc109}, 433 {HI846_REG_TCLK_PREPARE, 0x061a}, 434 {HI846_REG_UNKNOWN_0918, 0x0306}, 435 {HI846_REG_THS_ZERO, 0x0b09}, 436 {HI846_REG_TCLK_POST, 0x0c07}, 437 {HI846_REG_UNKNOWN_091E, 0x0a00}, 438 {HI846_REG_UNKNOWN_090C, 0x042a}, 439 {HI846_REG_UNKNOWN_090E, 0x006b}, 440 {HI846_REG_UNKNOWN_0954, 0x0089}, 441 {HI846_REG_UNKNOWN_0956, 0x0000}, 442 {HI846_REG_UNKNOWN_0958, 0xca00}, 443 {HI846_REG_UNKNOWN_095A, 0x9240}, 444 {HI846_REG_UNKNOWN_0F08, 0x2f04}, 445 {HI846_REG_UNKNOWN_0F30, 0x001f}, 446 {HI846_REG_UNKNOWN_0F36, 0x001f}, 447 {HI846_REG_UNKNOWN_0F04, 0x3a00}, 448 {HI846_REG_PLL_CFG_RAMP1_H, 0x025a}, 449 {HI846_REG_PLL_CFG_MIPI1_H, 0x025a}, 450 {HI846_REG_PLL_CFG_MIPI2_H, 0x0024}, 451 {HI846_REG_UNKNOWN_006A, 0x0100}, 452 {HI846_REG_TG_ENABLE, 0x0100}, 453 }; 454 455 static const struct hi846_reg hi846_init_4lane[] = { 456 {0x2000, 0x987a}, 457 {0x2002, 0x00ff}, 458 {0x2004, 0x0047}, 459 {0x2006, 0x3fff}, 460 {0x2008, 0x3fff}, 461 {0x200a, 0xc216}, 462 {0x200c, 0x1292}, 463 {0x200e, 0xc01a}, 464 {0x2010, 0x403d}, 465 {0x2012, 0x000e}, 466 {0x2014, 0x403e}, 467 {0x2016, 0x0b80}, 468 {0x2018, 0x403f}, 469 {0x201a, 0x82ae}, 470 {0x201c, 0x1292}, 471 {0x201e, 0xc00c}, 472 {0x2020, 0x4130}, 473 {0x2022, 0x43e2}, 474 {0x2024, 0x0180}, 475 {0x2026, 0x4130}, 476 {0x2028, 0x7400}, 477 {0x202a, 0x5000}, 478 {0x202c, 0x0253}, 479 {0x202e, 0x0ad1}, 480 {0x2030, 0x2360}, 481 {0x2032, 0x0009}, 482 {0x2034, 0x5020}, 483 {0x2036, 0x000b}, 484 {0x2038, 0x0002}, 485 {0x203a, 0x0044}, 486 {0x203c, 0x0016}, 487 {0x203e, 0x1792}, 488 {0x2040, 0x7002}, 489 {0x2042, 0x154f}, 490 {0x2044, 0x00d5}, 491 {0x2046, 0x000b}, 492 {0x2048, 0x0019}, 493 {0x204a, 0x1698}, 494 {0x204c, 0x000e}, 495 {0x204e, 0x099a}, 496 {0x2050, 0x0058}, 497 {0x2052, 0x7000}, 498 {0x2054, 0x1799}, 499 {0x2056, 0x0310}, 500 {0x2058, 0x03c3}, 501 {0x205a, 0x004c}, 502 {0x205c, 0x064a}, 503 {0x205e, 0x0001}, 504 {0x2060, 0x0007}, 505 {0x2062, 0x0bc7}, 506 {0x2064, 0x0055}, 507 {0x2066, 0x7000}, 508 {0x2068, 0x1550}, 509 {0x206a, 0x158a}, 510 {0x206c, 0x0004}, 511 {0x206e, 0x1488}, 512 {0x2070, 0x7010}, 513 {0x2072, 0x1508}, 514 {0x2074, 0x0004}, 515 {0x2076, 0x0016}, 516 {0x2078, 0x03d5}, 517 {0x207a, 0x0055}, 518 {0x207c, 0x08ca}, 519 {0x207e, 0x2019}, 520 {0x2080, 0x0007}, 521 {0x2082, 0x7057}, 522 {0x2084, 0x0fc7}, 523 {0x2086, 0x5041}, 524 {0x2088, 0x12c8}, 525 {0x208a, 0x5060}, 526 {0x208c, 0x5080}, 527 {0x208e, 0x2084}, 528 {0x2090, 0x12c8}, 529 {0x2092, 0x7800}, 530 {0x2094, 0x0802}, 531 {0x2096, 0x040f}, 532 {0x2098, 0x1007}, 533 {0x209a, 0x0803}, 534 {0x209c, 0x080b}, 535 {0x209e, 0x3803}, 536 {0x20a0, 0x0807}, 537 {0x20a2, 0x0404}, 538 {0x20a4, 0x0400}, 539 {0x20a6, 0xffff}, 540 {0x20a8, 0xf0b2}, 541 {0x20aa, 0xffef}, 542 {0x20ac, 0x0a84}, 543 {0x20ae, 0x1292}, 544 {0x20b0, 0xc02e}, 545 {0x20b2, 0x4130}, 546 {0x20b4, 0xf0b2}, 547 {0x20b6, 0xffbf}, 548 {0x20b8, 0x2004}, 549 {0x20ba, 0x403f}, 550 {0x20bc, 0x00c3}, 551 {0x20be, 0x4fe2}, 552 {0x20c0, 0x8318}, 553 {0x20c2, 0x43cf}, 554 {0x20c4, 0x0000}, 555 {0x20c6, 0x9382}, 556 {0x20c8, 0xc314}, 557 {0x20ca, 0x2003}, 558 {0x20cc, 0x12b0}, 559 {0x20ce, 0xcab0}, 560 {0x20d0, 0x4130}, 561 {0x20d2, 0x12b0}, 562 {0x20d4, 0xc90a}, 563 {0x20d6, 0x4130}, 564 {0x20d8, 0x42d2}, 565 {0x20da, 0x8318}, 566 {0x20dc, 0x00c3}, 567 {0x20de, 0x9382}, 568 {0x20e0, 0xc314}, 569 {0x20e2, 0x2009}, 570 {0x20e4, 0x120b}, 571 {0x20e6, 0x120a}, 572 {0x20e8, 0x1209}, 573 {0x20ea, 0x1208}, 574 {0x20ec, 0x1207}, 575 {0x20ee, 0x1206}, 576 {0x20f0, 0x4030}, 577 {0x20f2, 0xc15e}, 578 {0x20f4, 0x4130}, 579 {0x20f6, 0x1292}, 580 {0x20f8, 0xc008}, 581 {0x20fa, 0x4130}, 582 {0x20fc, 0x42d2}, 583 {0x20fe, 0x82a1}, 584 {0x2100, 0x00c2}, 585 {0x2102, 0x1292}, 586 {0x2104, 0xc040}, 587 {0x2106, 0x4130}, 588 {0x2108, 0x1292}, 589 {0x210a, 0xc006}, 590 {0x210c, 0x42a2}, 591 {0x210e, 0x7324}, 592 {0x2110, 0x9382}, 593 {0x2112, 0xc314}, 594 {0x2114, 0x2011}, 595 {0x2116, 0x425f}, 596 {0x2118, 0x82a1}, 597 {0x211a, 0xf25f}, 598 {0x211c, 0x00c1}, 599 {0x211e, 0xf35f}, 600 {0x2120, 0x2406}, 601 {0x2122, 0x425f}, 602 {0x2124, 0x00c0}, 603 {0x2126, 0xf37f}, 604 {0x2128, 0x522f}, 605 {0x212a, 0x4f82}, 606 {0x212c, 0x7324}, 607 {0x212e, 0x425f}, 608 {0x2130, 0x82d4}, 609 {0x2132, 0xf35f}, 610 {0x2134, 0x4fc2}, 611 {0x2136, 0x01b3}, 612 {0x2138, 0x93c2}, 613 {0x213a, 0x829f}, 614 {0x213c, 0x2421}, 615 {0x213e, 0x403e}, 616 {0x2140, 0xfffe}, 617 {0x2142, 0x40b2}, 618 {0x2144, 0xec78}, 619 {0x2146, 0x831c}, 620 {0x2148, 0x40b2}, 621 {0x214a, 0xec78}, 622 {0x214c, 0x831e}, 623 {0x214e, 0x40b2}, 624 {0x2150, 0xec78}, 625 {0x2152, 0x8320}, 626 {0x2154, 0xb3d2}, 627 {0x2156, 0x008c}, 628 {0x2158, 0x2405}, 629 {0x215a, 0x4e0f}, 630 {0x215c, 0x503f}, 631 {0x215e, 0xffd8}, 632 {0x2160, 0x4f82}, 633 {0x2162, 0x831c}, 634 {0x2164, 0x90f2}, 635 {0x2166, 0x0003}, 636 {0x2168, 0x008c}, 637 {0x216a, 0x2401}, 638 {0x216c, 0x4130}, 639 {0x216e, 0x421f}, 640 {0x2170, 0x831c}, 641 {0x2172, 0x5e0f}, 642 {0x2174, 0x4f82}, 643 {0x2176, 0x831e}, 644 {0x2178, 0x5e0f}, 645 {0x217a, 0x4f82}, 646 {0x217c, 0x8320}, 647 {0x217e, 0x3ff6}, 648 {0x2180, 0x432e}, 649 {0x2182, 0x3fdf}, 650 {0x2184, 0x421f}, 651 {0x2186, 0x7100}, 652 {0x2188, 0x4f0e}, 653 {0x218a, 0x503e}, 654 {0x218c, 0xffd8}, 655 {0x218e, 0x4e82}, 656 {0x2190, 0x7a04}, 657 {0x2192, 0x421e}, 658 {0x2194, 0x831c}, 659 {0x2196, 0x5f0e}, 660 {0x2198, 0x4e82}, 661 {0x219a, 0x7a06}, 662 {0x219c, 0x0b00}, 663 {0x219e, 0x7304}, 664 {0x21a0, 0x0050}, 665 {0x21a2, 0x40b2}, 666 {0x21a4, 0xd081}, 667 {0x21a6, 0x0b88}, 668 {0x21a8, 0x421e}, 669 {0x21aa, 0x831e}, 670 {0x21ac, 0x5f0e}, 671 {0x21ae, 0x4e82}, 672 {0x21b0, 0x7a0e}, 673 {0x21b2, 0x521f}, 674 {0x21b4, 0x8320}, 675 {0x21b6, 0x4f82}, 676 {0x21b8, 0x7a10}, 677 {0x21ba, 0x0b00}, 678 {0x21bc, 0x7304}, 679 {0x21be, 0x007a}, 680 {0x21c0, 0x40b2}, 681 {0x21c2, 0x0081}, 682 {0x21c4, 0x0b88}, 683 {0x21c6, 0x4392}, 684 {0x21c8, 0x7a0a}, 685 {0x21ca, 0x0800}, 686 {0x21cc, 0x7a0c}, 687 {0x21ce, 0x0b00}, 688 {0x21d0, 0x7304}, 689 {0x21d2, 0x022b}, 690 {0x21d4, 0x40b2}, 691 {0x21d6, 0xd081}, 692 {0x21d8, 0x0b88}, 693 {0x21da, 0x0b00}, 694 {0x21dc, 0x7304}, 695 {0x21de, 0x0255}, 696 {0x21e0, 0x40b2}, 697 {0x21e2, 0x0081}, 698 {0x21e4, 0x0b88}, 699 {0x21e6, 0x4130}, 700 {0x23fe, 0xc056}, 701 {0x3232, 0xfc0c}, 702 {0x3236, 0xfc22}, 703 {0x3238, 0xfcfc}, 704 {0x323a, 0xfd84}, 705 {0x323c, 0xfd08}, 706 {0x3246, 0xfcd8}, 707 {0x3248, 0xfca8}, 708 {0x324e, 0xfcb4}, 709 {0x326a, 0x8302}, 710 {0x326c, 0x830a}, 711 {0x326e, 0x0000}, 712 {0x32ca, 0xfc28}, 713 {0x32cc, 0xc3bc}, 714 {0x32ce, 0xc34c}, 715 {0x32d0, 0xc35a}, 716 {0x32d2, 0xc368}, 717 {0x32d4, 0xc376}, 718 {0x32d6, 0xc3c2}, 719 {0x32d8, 0xc3e6}, 720 {0x32da, 0x0003}, 721 {0x32dc, 0x0003}, 722 {0x32de, 0x00c7}, 723 {0x32e0, 0x0031}, 724 {0x32e2, 0x0031}, 725 {0x32e4, 0x0031}, 726 {0x32e6, 0xfc28}, 727 {0x32e8, 0xc3bc}, 728 {0x32ea, 0xc384}, 729 {0x32ec, 0xc392}, 730 {0x32ee, 0xc3a0}, 731 {0x32f0, 0xc3ae}, 732 {0x32f2, 0xc3c4}, 733 {0x32f4, 0xc3e6}, 734 {0x32f6, 0x0003}, 735 {0x32f8, 0x0003}, 736 {0x32fa, 0x00c7}, 737 {0x32fc, 0x0031}, 738 {0x32fe, 0x0031}, 739 {0x3300, 0x0031}, 740 {0x3302, 0x82ca}, 741 {0x3304, 0xc164}, 742 {0x3306, 0x82e6}, 743 {0x3308, 0xc19c}, 744 {0x330a, 0x001f}, 745 {0x330c, 0x001a}, 746 {0x330e, 0x0034}, 747 {0x3310, 0x0000}, 748 {0x3312, 0x0000}, 749 {0x3314, 0xfc94}, 750 {0x3316, 0xc3d8}, 751 752 {0x0a00, 0x0000}, 753 {0x0e04, 0x0012}, 754 {0x002e, 0x1111}, 755 {0x0032, 0x1111}, 756 {0x0022, 0x0008}, 757 {0x0026, 0x0040}, 758 {0x0028, 0x0017}, 759 {0x002c, 0x09cf}, 760 {0x005c, 0x2101}, 761 {0x0006, 0x09de}, 762 {0x0008, 0x0ed8}, 763 {0x000e, 0x0100}, 764 {0x000c, 0x0022}, 765 {0x0a22, 0x0000}, 766 {0x0a24, 0x0000}, 767 {0x0804, 0x0000}, 768 {0x0a12, 0x0cc0}, 769 {0x0a14, 0x0990}, 770 {0x0074, 0x09d8}, 771 {0x0076, 0x0000}, 772 {0x051e, 0x0000}, 773 {0x0200, 0x0400}, 774 {0x0a1a, 0x0c00}, 775 {0x0a0c, 0x0010}, 776 {0x0a1e, 0x0ccf}, 777 {0x0402, 0x0110}, 778 {0x0404, 0x00f4}, 779 {0x0408, 0x0000}, 780 {0x0410, 0x008d}, 781 {0x0412, 0x011a}, 782 {0x0414, 0x864c}, 783 /* for OTP */ 784 {0x021c, 0x0003}, 785 {0x021e, 0x0235}, 786 /* for OTP */ 787 {0x0c00, 0x9950}, 788 {0x0c06, 0x0021}, 789 {0x0c10, 0x0040}, 790 {0x0c12, 0x0040}, 791 {0x0c14, 0x0040}, 792 {0x0c16, 0x0040}, 793 {0x0a02, 0x0100}, 794 {0x0a04, 0x015a}, 795 {0x0418, 0x0000}, 796 {0x0128, 0x0028}, 797 {0x012a, 0xffff}, 798 {0x0120, 0x0046}, 799 {0x0122, 0x0376}, 800 {0x012c, 0x0020}, 801 {0x012e, 0xffff}, 802 {0x0124, 0x0040}, 803 {0x0126, 0x0378}, 804 {0x0746, 0x0050}, 805 {0x0748, 0x01d5}, 806 {0x074a, 0x022b}, 807 {0x074c, 0x03b0}, 808 {0x0756, 0x043f}, 809 {0x0758, 0x3f1d}, 810 {0x0b02, 0xe04d}, 811 {0x0b10, 0x6821}, 812 {0x0b12, 0x0120}, 813 {0x0b14, 0x0001}, 814 {0x2008, 0x38fd}, 815 {0x326e, 0x0000}, 816 {0x0900, 0x0300}, 817 {0x0902, 0xc319}, 818 {0x0914, 0xc109}, 819 {0x0916, 0x061a}, 820 {0x0918, 0x0407}, 821 {0x091a, 0x0a0b}, 822 {0x091c, 0x0e08}, 823 {0x091e, 0x0a00}, 824 {0x090c, 0x0427}, 825 {0x090e, 0x0059}, 826 {0x0954, 0x0089}, 827 {0x0956, 0x0000}, 828 {0x0958, 0xca80}, 829 {0x095a, 0x9240}, 830 {0x0f08, 0x2f04}, 831 {0x0f30, 0x001f}, 832 {0x0f36, 0x001f}, 833 {0x0f04, 0x3a00}, 834 {0x0f32, 0x025a}, 835 {0x0f38, 0x025a}, 836 {0x0f2a, 0x4124}, 837 {0x006a, 0x0100}, 838 {0x004c, 0x0100}, 839 {0x0044, 0x0001}, 840 }; 841 842 static const struct hi846_reg mode_640x480_config[] = { 843 {HI846_REG_MODE_SELECT, 0x0000}, 844 {HI846_REG_Y_ODD_INC_FOBP, 0x7711}, 845 {HI846_REG_Y_ODD_INC_VACT, 0x7711}, 846 {HI846_REG_Y_ADDR_START_VACT_H, 0x0148}, 847 {HI846_REG_Y_ADDR_END_VACT_H, 0x08c7}, 848 {HI846_REG_UNKNOWN_005C, 0x4404}, 849 {HI846_REG_FLL, 0x0277}, 850 {HI846_REG_LLP, 0x0ed8}, 851 {HI846_REG_BINNING_MODE, 0x0322}, 852 {HI846_REG_HBIN_MODE, 0x0200}, 853 {HI846_REG_UNKNOWN_0A24, 0x0000}, 854 {HI846_REG_X_START_H, 0x0058}, 855 {HI846_REG_X_OUTPUT_SIZE_H, 0x0280}, 856 {HI846_REG_Y_OUTPUT_SIZE_H, 0x01e0}, 857 858 /* For OTP */ 859 {HI846_REG_UNKNOWN_021C, 0x0003}, 860 {HI846_REG_UNKNOWN_021E, 0x0235}, 861 862 {HI846_REG_ISP_EN_H, 0x016a}, 863 {HI846_REG_UNKNOWN_0418, 0x0210}, 864 {HI846_REG_UNKNOWN_0B02, 0xe04d}, 865 {HI846_REG_UNKNOWN_0B10, 0x7021}, 866 {HI846_REG_UNKNOWN_0B12, 0x0120}, 867 {HI846_REG_UNKNOWN_0B14, 0x0001}, 868 {HI846_REG_UNKNOWN_2008, 0x38fd}, 869 {HI846_REG_UNKNOWN_326E, 0x0000}, 870 }; 871 872 static const struct hi846_reg mode_640x480_mipi_2lane[] = { 873 {HI846_REG_UNKNOWN_0900, 0x0300}, 874 {HI846_REG_MIPI_TX_OP_MODE, 0x4319}, 875 {HI846_REG_UNKNOWN_0914, 0xc105}, 876 {HI846_REG_TCLK_PREPARE, 0x030c}, 877 {HI846_REG_UNKNOWN_0918, 0x0304}, 878 {HI846_REG_THS_ZERO, 0x0708}, 879 {HI846_REG_TCLK_POST, 0x0b04}, 880 {HI846_REG_UNKNOWN_091E, 0x0500}, 881 {HI846_REG_UNKNOWN_090C, 0x0208}, 882 {HI846_REG_UNKNOWN_090E, 0x009a}, 883 {HI846_REG_UNKNOWN_0954, 0x0089}, 884 {HI846_REG_UNKNOWN_0956, 0x0000}, 885 {HI846_REG_UNKNOWN_0958, 0xca80}, 886 {HI846_REG_UNKNOWN_095A, 0x9240}, 887 {HI846_REG_PLL_CFG_MIPI2_H, 0x4924}, 888 {HI846_REG_TG_ENABLE, 0x0100}, 889 }; 890 891 static const struct hi846_reg mode_1280x720_config[] = { 892 {HI846_REG_MODE_SELECT, 0x0000}, 893 {HI846_REG_Y_ODD_INC_FOBP, 0x3311}, 894 {HI846_REG_Y_ODD_INC_VACT, 0x3311}, 895 {HI846_REG_Y_ADDR_START_VACT_H, 0x0238}, 896 {HI846_REG_Y_ADDR_END_VACT_H, 0x07d7}, 897 {HI846_REG_UNKNOWN_005C, 0x4202}, 898 {HI846_REG_FLL, 0x034a}, 899 {HI846_REG_LLP, 0x0ed8}, 900 {HI846_REG_BINNING_MODE, 0x0122}, 901 {HI846_REG_HBIN_MODE, 0x0100}, 902 {HI846_REG_UNKNOWN_0A24, 0x0000}, 903 {HI846_REG_X_START_H, 0x00b0}, 904 {HI846_REG_X_OUTPUT_SIZE_H, 0x0500}, 905 {HI846_REG_Y_OUTPUT_SIZE_H, 0x02d0}, 906 {HI846_REG_EXPOSURE, 0x0344}, 907 908 /* For OTP */ 909 {HI846_REG_UNKNOWN_021C, 0x0003}, 910 {HI846_REG_UNKNOWN_021E, 0x0235}, 911 912 {HI846_REG_ISP_EN_H, 0x016a}, 913 {HI846_REG_UNKNOWN_0418, 0x0410}, 914 {HI846_REG_UNKNOWN_0B02, 0xe04d}, 915 {HI846_REG_UNKNOWN_0B10, 0x6c21}, 916 {HI846_REG_UNKNOWN_0B12, 0x0120}, 917 {HI846_REG_UNKNOWN_0B14, 0x0005}, 918 {HI846_REG_UNKNOWN_2008, 0x38fd}, 919 {HI846_REG_UNKNOWN_326E, 0x0000}, 920 }; 921 922 static const struct hi846_reg mode_1280x720_mipi_2lane[] = { 923 {HI846_REG_UNKNOWN_0900, 0x0300}, 924 {HI846_REG_MIPI_TX_OP_MODE, 0x4319}, 925 {HI846_REG_UNKNOWN_0914, 0xc109}, 926 {HI846_REG_TCLK_PREPARE, 0x061a}, 927 {HI846_REG_UNKNOWN_0918, 0x0407}, 928 {HI846_REG_THS_ZERO, 0x0a0b}, 929 {HI846_REG_TCLK_POST, 0x0e08}, 930 {HI846_REG_UNKNOWN_091E, 0x0a00}, 931 {HI846_REG_UNKNOWN_090C, 0x0427}, 932 {HI846_REG_UNKNOWN_090E, 0x0145}, 933 {HI846_REG_UNKNOWN_0954, 0x0089}, 934 {HI846_REG_UNKNOWN_0956, 0x0000}, 935 {HI846_REG_UNKNOWN_0958, 0xca80}, 936 {HI846_REG_UNKNOWN_095A, 0x9240}, 937 {HI846_REG_PLL_CFG_MIPI2_H, 0x4124}, 938 {HI846_REG_TG_ENABLE, 0x0100}, 939 }; 940 941 static const struct hi846_reg mode_1280x720_mipi_4lane[] = { 942 /* 360Mbps */ 943 {HI846_REG_UNKNOWN_0900, 0x0300}, 944 {HI846_REG_MIPI_TX_OP_MODE, 0xc319}, 945 {HI846_REG_UNKNOWN_0914, 0xc105}, 946 {HI846_REG_TCLK_PREPARE, 0x030c}, 947 {HI846_REG_UNKNOWN_0918, 0x0304}, 948 {HI846_REG_THS_ZERO, 0x0708}, 949 {HI846_REG_TCLK_POST, 0x0b04}, 950 {HI846_REG_UNKNOWN_091E, 0x0500}, 951 {HI846_REG_UNKNOWN_090C, 0x0208}, 952 {HI846_REG_UNKNOWN_090E, 0x008a}, 953 {HI846_REG_UNKNOWN_0954, 0x0089}, 954 {HI846_REG_UNKNOWN_0956, 0x0000}, 955 {HI846_REG_UNKNOWN_0958, 0xca80}, 956 {HI846_REG_UNKNOWN_095A, 0x9240}, 957 {HI846_REG_PLL_CFG_MIPI2_H, 0x4924}, 958 {HI846_REG_TG_ENABLE, 0x0100}, 959 }; 960 961 static const struct hi846_reg mode_1632x1224_config[] = { 962 {HI846_REG_MODE_SELECT, 0x0000}, 963 {HI846_REG_Y_ODD_INC_FOBP, 0x3311}, 964 {HI846_REG_Y_ODD_INC_VACT, 0x3311}, 965 {HI846_REG_Y_ADDR_START_VACT_H, 0x0040}, 966 {HI846_REG_Y_ADDR_END_VACT_H, 0x09cf}, 967 {HI846_REG_UNKNOWN_005C, 0x4202}, 968 {HI846_REG_FLL, 0x09de}, 969 {HI846_REG_LLP, 0x0ed8}, 970 {HI846_REG_BINNING_MODE, 0x0122}, 971 {HI846_REG_HBIN_MODE, 0x0100}, 972 {HI846_REG_UNKNOWN_0A24, 0x0000}, 973 {HI846_REG_X_START_H, 0x0000}, 974 {HI846_REG_X_OUTPUT_SIZE_H, 0x0660}, 975 {HI846_REG_Y_OUTPUT_SIZE_H, 0x04c8}, 976 {HI846_REG_EXPOSURE, 0x09d8}, 977 978 /* For OTP */ 979 {HI846_REG_UNKNOWN_021C, 0x0003}, 980 {HI846_REG_UNKNOWN_021E, 0x0235}, 981 982 {HI846_REG_ISP_EN_H, 0x016a}, 983 {HI846_REG_UNKNOWN_0418, 0x0000}, 984 {HI846_REG_UNKNOWN_0B02, 0xe04d}, 985 {HI846_REG_UNKNOWN_0B10, 0x6c21}, 986 {HI846_REG_UNKNOWN_0B12, 0x0120}, 987 {HI846_REG_UNKNOWN_0B14, 0x0005}, 988 {HI846_REG_UNKNOWN_2008, 0x38fd}, 989 {HI846_REG_UNKNOWN_326E, 0x0000}, 990 }; 991 992 static const struct hi846_reg mode_1632x1224_mipi_2lane[] = { 993 {HI846_REG_UNKNOWN_0900, 0x0300}, 994 {HI846_REG_MIPI_TX_OP_MODE, 0x4319}, 995 {HI846_REG_UNKNOWN_0914, 0xc109}, 996 {HI846_REG_TCLK_PREPARE, 0x061a}, 997 {HI846_REG_UNKNOWN_0918, 0x0407}, 998 {HI846_REG_THS_ZERO, 0x0a0b}, 999 {HI846_REG_TCLK_POST, 0x0e08}, 1000 {HI846_REG_UNKNOWN_091E, 0x0a00}, 1001 {HI846_REG_UNKNOWN_090C, 0x0427}, 1002 {HI846_REG_UNKNOWN_090E, 0x0069}, 1003 {HI846_REG_UNKNOWN_0954, 0x0089}, 1004 {HI846_REG_UNKNOWN_0956, 0x0000}, 1005 {HI846_REG_UNKNOWN_0958, 0xca80}, 1006 {HI846_REG_UNKNOWN_095A, 0x9240}, 1007 {HI846_REG_PLL_CFG_MIPI2_H, 0x4124}, 1008 {HI846_REG_TG_ENABLE, 0x0100}, 1009 }; 1010 1011 static const struct hi846_reg mode_1632x1224_mipi_4lane[] = { 1012 {HI846_REG_UNKNOWN_0900, 0x0300}, 1013 {HI846_REG_MIPI_TX_OP_MODE, 0xc319}, 1014 {HI846_REG_UNKNOWN_0914, 0xc105}, 1015 {HI846_REG_TCLK_PREPARE, 0x030c}, 1016 {HI846_REG_UNKNOWN_0918, 0x0304}, 1017 {HI846_REG_THS_ZERO, 0x0708}, 1018 {HI846_REG_TCLK_POST, 0x0b04}, 1019 {HI846_REG_UNKNOWN_091E, 0x0500}, 1020 {HI846_REG_UNKNOWN_090C, 0x0208}, 1021 {HI846_REG_UNKNOWN_090E, 0x001c}, 1022 {HI846_REG_UNKNOWN_0954, 0x0089}, 1023 {HI846_REG_UNKNOWN_0956, 0x0000}, 1024 {HI846_REG_UNKNOWN_0958, 0xca80}, 1025 {HI846_REG_UNKNOWN_095A, 0x9240}, 1026 {HI846_REG_PLL_CFG_MIPI2_H, 0x4924}, 1027 {HI846_REG_TG_ENABLE, 0x0100}, 1028 }; 1029 1030 static const char * const hi846_test_pattern_menu[] = { 1031 "Disabled", 1032 "Solid Colour", 1033 "100% Colour Bars", 1034 "Fade To Grey Colour Bars", 1035 "PN9", 1036 "Gradient Horizontal", 1037 "Gradient Vertical", 1038 "Check Board", 1039 "Slant Pattern", 1040 "Resolution Pattern", 1041 }; 1042 1043 #define FREQ_INDEX_640 0 1044 #define FREQ_INDEX_1280 1 1045 static const s64 hi846_link_freqs[] = { 1046 [FREQ_INDEX_640] = 80000000, 1047 [FREQ_INDEX_1280] = 200000000, 1048 }; 1049 1050 static const struct hi846_reg_list hi846_init_regs_list_2lane = { 1051 .num_of_regs = ARRAY_SIZE(hi846_init_2lane), 1052 .regs = hi846_init_2lane, 1053 }; 1054 1055 static const struct hi846_reg_list hi846_init_regs_list_4lane = { 1056 .num_of_regs = ARRAY_SIZE(hi846_init_4lane), 1057 .regs = hi846_init_4lane, 1058 }; 1059 1060 static const struct hi846_mode supported_modes[] = { 1061 { 1062 .width = 640, 1063 .height = 480, 1064 .link_freq_index = FREQ_INDEX_640, 1065 .fps = 120, 1066 .frame_len = 631, 1067 .llp = HI846_LINE_LENGTH, 1068 .reg_list_config = { 1069 .num_of_regs = ARRAY_SIZE(mode_640x480_config), 1070 .regs = mode_640x480_config, 1071 }, 1072 .reg_list_2lane = { 1073 .num_of_regs = ARRAY_SIZE(mode_640x480_mipi_2lane), 1074 .regs = mode_640x480_mipi_2lane, 1075 }, 1076 .reg_list_4lane = { 1077 .num_of_regs = 0, 1078 }, 1079 .crop = { 1080 .left = 0x58, 1081 .top = 0x148, 1082 .width = 640 * 4, 1083 .height = 480 * 4, 1084 }, 1085 }, 1086 { 1087 .width = 1280, 1088 .height = 720, 1089 .link_freq_index = FREQ_INDEX_1280, 1090 .fps = 90, 1091 .frame_len = 842, 1092 .llp = HI846_LINE_LENGTH, 1093 .reg_list_config = { 1094 .num_of_regs = ARRAY_SIZE(mode_1280x720_config), 1095 .regs = mode_1280x720_config, 1096 }, 1097 .reg_list_2lane = { 1098 .num_of_regs = ARRAY_SIZE(mode_1280x720_mipi_2lane), 1099 .regs = mode_1280x720_mipi_2lane, 1100 }, 1101 .reg_list_4lane = { 1102 .num_of_regs = ARRAY_SIZE(mode_1280x720_mipi_4lane), 1103 .regs = mode_1280x720_mipi_4lane, 1104 }, 1105 .crop = { 1106 .left = 0xb0, 1107 .top = 0x238, 1108 .width = 1280 * 2, 1109 .height = 720 * 2, 1110 }, 1111 }, 1112 { 1113 .width = 1632, 1114 .height = 1224, 1115 .link_freq_index = FREQ_INDEX_1280, 1116 .fps = 30, 1117 .frame_len = 2526, 1118 .llp = HI846_LINE_LENGTH, 1119 .reg_list_config = { 1120 .num_of_regs = ARRAY_SIZE(mode_1632x1224_config), 1121 .regs = mode_1632x1224_config, 1122 }, 1123 .reg_list_2lane = { 1124 .num_of_regs = ARRAY_SIZE(mode_1632x1224_mipi_2lane), 1125 .regs = mode_1632x1224_mipi_2lane, 1126 }, 1127 .reg_list_4lane = { 1128 .num_of_regs = ARRAY_SIZE(mode_1632x1224_mipi_4lane), 1129 .regs = mode_1632x1224_mipi_4lane, 1130 }, 1131 .crop = { 1132 .left = 0x0, 1133 .top = 0x0, 1134 .width = 1632 * 2, 1135 .height = 1224 * 2, 1136 }, 1137 } 1138 }; 1139 1140 struct hi846_datafmt { 1141 u32 code; 1142 enum v4l2_colorspace colorspace; 1143 }; 1144 1145 static const char * const hi846_supply_names[] = { 1146 "vddio", /* Digital I/O (1.8V or 2.8V) */ 1147 "vdda", /* Analog (2.8V) */ 1148 "vddd", /* Digital Core (1.2V) */ 1149 }; 1150 1151 #define HI846_NUM_SUPPLIES ARRAY_SIZE(hi846_supply_names) 1152 1153 struct hi846 { 1154 struct gpio_desc *rst_gpio; 1155 struct gpio_desc *shutdown_gpio; 1156 struct regulator_bulk_data supplies[HI846_NUM_SUPPLIES]; 1157 struct clk *clock; 1158 const struct hi846_datafmt *fmt; 1159 struct v4l2_subdev sd; 1160 struct media_pad pad; 1161 struct v4l2_ctrl_handler ctrl_handler; 1162 u8 nr_lanes; 1163 1164 struct v4l2_ctrl *link_freq; 1165 struct v4l2_ctrl *pixel_rate; 1166 struct v4l2_ctrl *vblank; 1167 struct v4l2_ctrl *hblank; 1168 struct v4l2_ctrl *exposure; 1169 1170 struct mutex mutex; /* protect cur_mode, streaming and chip access */ 1171 const struct hi846_mode *cur_mode; 1172 bool streaming; 1173 }; 1174 1175 static inline struct hi846 *to_hi846(struct v4l2_subdev *sd) 1176 { 1177 return container_of(sd, struct hi846, sd); 1178 } 1179 1180 static const struct hi846_datafmt hi846_colour_fmts[] = { 1181 { HI846_MEDIA_BUS_FORMAT, V4L2_COLORSPACE_RAW }, 1182 }; 1183 1184 static const struct hi846_datafmt *hi846_find_datafmt(u32 code) 1185 { 1186 unsigned int i; 1187 1188 for (i = 0; i < ARRAY_SIZE(hi846_colour_fmts); i++) 1189 if (hi846_colour_fmts[i].code == code) 1190 return &hi846_colour_fmts[i]; 1191 1192 return NULL; 1193 } 1194 1195 static inline u8 hi846_get_link_freq_index(struct hi846 *hi846) 1196 { 1197 return hi846->cur_mode->link_freq_index; 1198 } 1199 1200 static u64 hi846_get_link_freq(struct hi846 *hi846) 1201 { 1202 u8 index = hi846_get_link_freq_index(hi846); 1203 1204 return hi846_link_freqs[index]; 1205 } 1206 1207 static u64 hi846_calc_pixel_rate(struct hi846 *hi846) 1208 { 1209 u64 link_freq = hi846_get_link_freq(hi846); 1210 u64 pixel_rate = link_freq * 2 * hi846->nr_lanes; 1211 1212 do_div(pixel_rate, HI846_RGB_DEPTH); 1213 1214 return pixel_rate; 1215 } 1216 1217 static int hi846_read_reg(struct hi846 *hi846, u16 reg, u8 *val) 1218 { 1219 struct i2c_client *client = v4l2_get_subdevdata(&hi846->sd); 1220 struct i2c_msg msgs[2]; 1221 u8 addr_buf[2]; 1222 u8 data_buf[1] = {0}; 1223 int ret; 1224 1225 put_unaligned_be16(reg, addr_buf); 1226 msgs[0].addr = client->addr; 1227 msgs[0].flags = 0; 1228 msgs[0].len = sizeof(addr_buf); 1229 msgs[0].buf = addr_buf; 1230 msgs[1].addr = client->addr; 1231 msgs[1].flags = I2C_M_RD; 1232 msgs[1].len = 1; 1233 msgs[1].buf = data_buf; 1234 1235 ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); 1236 if (ret != ARRAY_SIZE(msgs)) { 1237 dev_err(&client->dev, "i2c read error: %d\n", ret); 1238 return -EIO; 1239 } 1240 1241 *val = data_buf[0]; 1242 1243 return 0; 1244 } 1245 1246 static int hi846_write_reg(struct hi846 *hi846, u16 reg, u8 val) 1247 { 1248 struct i2c_client *client = v4l2_get_subdevdata(&hi846->sd); 1249 u8 buf[3] = { reg >> 8, reg & 0xff, val }; 1250 struct i2c_msg msg[] = { 1251 { .addr = client->addr, .flags = 0, 1252 .len = ARRAY_SIZE(buf), .buf = buf }, 1253 }; 1254 int ret; 1255 1256 ret = i2c_transfer(client->adapter, msg, ARRAY_SIZE(msg)); 1257 if (ret != ARRAY_SIZE(msg)) { 1258 dev_err(&client->dev, "i2c write error\n"); 1259 return -EIO; 1260 } 1261 1262 return 0; 1263 } 1264 1265 static void hi846_write_reg_16(struct hi846 *hi846, u16 reg, u16 val, int *err) 1266 { 1267 struct i2c_client *client = v4l2_get_subdevdata(&hi846->sd); 1268 u8 buf[4]; 1269 int ret; 1270 1271 if (*err < 0) 1272 return; 1273 1274 put_unaligned_be16(reg, buf); 1275 put_unaligned_be16(val, buf + 2); 1276 ret = i2c_master_send(client, buf, sizeof(buf)); 1277 if (ret != sizeof(buf)) { 1278 dev_err(&client->dev, "i2c_master_send != %zu: %d\n", 1279 sizeof(buf), ret); 1280 *err = -EIO; 1281 } 1282 } 1283 1284 static int hi846_write_reg_list(struct hi846 *hi846, 1285 const struct hi846_reg_list *r_list) 1286 { 1287 struct i2c_client *client = v4l2_get_subdevdata(&hi846->sd); 1288 unsigned int i; 1289 int ret = 0; 1290 1291 for (i = 0; i < r_list->num_of_regs; i++) { 1292 hi846_write_reg_16(hi846, r_list->regs[i].address, 1293 r_list->regs[i].val, &ret); 1294 if (ret) { 1295 dev_err_ratelimited(&client->dev, 1296 "failed to write reg 0x%4.4x: %d", 1297 r_list->regs[i].address, ret); 1298 return ret; 1299 } 1300 } 1301 1302 return 0; 1303 } 1304 1305 static int hi846_update_digital_gain(struct hi846 *hi846, u16 d_gain) 1306 { 1307 int ret = 0; 1308 1309 hi846_write_reg_16(hi846, HI846_REG_MWB_GR_GAIN_H, d_gain, &ret); 1310 hi846_write_reg_16(hi846, HI846_REG_MWB_GB_GAIN_H, d_gain, &ret); 1311 hi846_write_reg_16(hi846, HI846_REG_MWB_R_GAIN_H, d_gain, &ret); 1312 hi846_write_reg_16(hi846, HI846_REG_MWB_B_GAIN_H, d_gain, &ret); 1313 1314 return ret; 1315 } 1316 1317 static int hi846_test_pattern(struct hi846 *hi846, u32 pattern) 1318 { 1319 int ret; 1320 u8 val; 1321 1322 if (pattern) { 1323 ret = hi846_read_reg(hi846, HI846_REG_ISP, &val); 1324 if (ret) 1325 return ret; 1326 1327 ret = hi846_write_reg(hi846, HI846_REG_ISP, 1328 val | HI846_REG_ISP_TPG_EN); 1329 if (ret) 1330 return ret; 1331 } 1332 1333 return hi846_write_reg(hi846, HI846_REG_TEST_PATTERN, pattern); 1334 } 1335 1336 static int hi846_set_ctrl(struct v4l2_ctrl *ctrl) 1337 { 1338 struct hi846 *hi846 = container_of(ctrl->handler, 1339 struct hi846, ctrl_handler); 1340 struct i2c_client *client = v4l2_get_subdevdata(&hi846->sd); 1341 s64 exposure_max; 1342 int ret = 0; 1343 u32 shutter, frame_len; 1344 1345 /* Propagate change of current control to all related controls */ 1346 if (ctrl->id == V4L2_CID_VBLANK) { 1347 /* Update max exposure while meeting expected vblanking */ 1348 exposure_max = hi846->cur_mode->height + ctrl->val - 1349 HI846_EXPOSURE_MAX_MARGIN; 1350 __v4l2_ctrl_modify_range(hi846->exposure, 1351 hi846->exposure->minimum, 1352 exposure_max, hi846->exposure->step, 1353 exposure_max); 1354 } 1355 1356 ret = pm_runtime_get_if_in_use(&client->dev); 1357 if (!ret || ret == -EAGAIN) 1358 return 0; 1359 1360 switch (ctrl->id) { 1361 case V4L2_CID_ANALOGUE_GAIN: 1362 ret = hi846_write_reg(hi846, HI846_REG_ANALOG_GAIN, ctrl->val); 1363 break; 1364 1365 case V4L2_CID_DIGITAL_GAIN: 1366 ret = hi846_update_digital_gain(hi846, ctrl->val); 1367 break; 1368 1369 case V4L2_CID_EXPOSURE: 1370 shutter = ctrl->val; 1371 frame_len = hi846->cur_mode->frame_len; 1372 1373 if (shutter > frame_len - 6) { /* margin */ 1374 frame_len = shutter + 6; 1375 if (frame_len > 0xffff) { /* max frame len */ 1376 frame_len = 0xffff; 1377 } 1378 } 1379 1380 if (shutter < 6) 1381 shutter = 6; 1382 if (shutter > (0xffff - 6)) 1383 shutter = 0xffff - 6; 1384 1385 hi846_write_reg_16(hi846, HI846_REG_FLL, frame_len, &ret); 1386 hi846_write_reg_16(hi846, HI846_REG_EXPOSURE, shutter, &ret); 1387 break; 1388 1389 case V4L2_CID_VBLANK: 1390 /* Update FLL that meets expected vertical blanking */ 1391 hi846_write_reg_16(hi846, HI846_REG_FLL, 1392 hi846->cur_mode->height + ctrl->val, &ret); 1393 break; 1394 case V4L2_CID_TEST_PATTERN: 1395 ret = hi846_test_pattern(hi846, ctrl->val); 1396 break; 1397 1398 default: 1399 ret = -EINVAL; 1400 break; 1401 } 1402 1403 pm_runtime_put(&client->dev); 1404 1405 return ret; 1406 } 1407 1408 static const struct v4l2_ctrl_ops hi846_ctrl_ops = { 1409 .s_ctrl = hi846_set_ctrl, 1410 }; 1411 1412 static int hi846_init_controls(struct hi846 *hi846) 1413 { 1414 struct v4l2_ctrl_handler *ctrl_hdlr; 1415 s64 exposure_max, h_blank; 1416 int ret; 1417 struct i2c_client *client = v4l2_get_subdevdata(&hi846->sd); 1418 struct v4l2_fwnode_device_properties props; 1419 1420 ctrl_hdlr = &hi846->ctrl_handler; 1421 ret = v4l2_ctrl_handler_init(ctrl_hdlr, 10); 1422 if (ret) 1423 return ret; 1424 1425 ctrl_hdlr->lock = &hi846->mutex; 1426 1427 hi846->link_freq = 1428 v4l2_ctrl_new_int_menu(ctrl_hdlr, &hi846_ctrl_ops, 1429 V4L2_CID_LINK_FREQ, 1430 ARRAY_SIZE(hi846_link_freqs) - 1, 1431 0, hi846_link_freqs); 1432 if (hi846->link_freq) 1433 hi846->link_freq->flags |= V4L2_CTRL_FLAG_READ_ONLY; 1434 1435 hi846->pixel_rate = 1436 v4l2_ctrl_new_std(ctrl_hdlr, &hi846_ctrl_ops, 1437 V4L2_CID_PIXEL_RATE, 0, 1438 hi846_calc_pixel_rate(hi846), 1, 1439 hi846_calc_pixel_rate(hi846)); 1440 hi846->vblank = v4l2_ctrl_new_std(ctrl_hdlr, &hi846_ctrl_ops, 1441 V4L2_CID_VBLANK, 1442 hi846->cur_mode->frame_len - 1443 hi846->cur_mode->height, 1444 HI846_FLL_MAX - 1445 hi846->cur_mode->height, 1, 1446 hi846->cur_mode->frame_len - 1447 hi846->cur_mode->height); 1448 1449 h_blank = hi846->cur_mode->llp - hi846->cur_mode->width; 1450 1451 hi846->hblank = v4l2_ctrl_new_std(ctrl_hdlr, &hi846_ctrl_ops, 1452 V4L2_CID_HBLANK, h_blank, h_blank, 1, 1453 h_blank); 1454 if (hi846->hblank) 1455 hi846->hblank->flags |= V4L2_CTRL_FLAG_READ_ONLY; 1456 1457 v4l2_ctrl_new_std(ctrl_hdlr, &hi846_ctrl_ops, V4L2_CID_ANALOGUE_GAIN, 1458 HI846_ANAL_GAIN_MIN, HI846_ANAL_GAIN_MAX, 1459 HI846_ANAL_GAIN_STEP, HI846_ANAL_GAIN_MIN); 1460 v4l2_ctrl_new_std(ctrl_hdlr, &hi846_ctrl_ops, V4L2_CID_DIGITAL_GAIN, 1461 HI846_DGTL_GAIN_MIN, HI846_DGTL_GAIN_MAX, 1462 HI846_DGTL_GAIN_STEP, HI846_DGTL_GAIN_DEFAULT); 1463 exposure_max = hi846->cur_mode->frame_len - HI846_EXPOSURE_MAX_MARGIN; 1464 hi846->exposure = v4l2_ctrl_new_std(ctrl_hdlr, &hi846_ctrl_ops, 1465 V4L2_CID_EXPOSURE, 1466 HI846_EXPOSURE_MIN, exposure_max, 1467 HI846_EXPOSURE_STEP, 1468 exposure_max); 1469 v4l2_ctrl_new_std_menu_items(ctrl_hdlr, &hi846_ctrl_ops, 1470 V4L2_CID_TEST_PATTERN, 1471 ARRAY_SIZE(hi846_test_pattern_menu) - 1, 1472 0, 0, hi846_test_pattern_menu); 1473 if (ctrl_hdlr->error) { 1474 dev_err(&client->dev, "v4l ctrl handler error: %d\n", 1475 ctrl_hdlr->error); 1476 ret = ctrl_hdlr->error; 1477 goto error; 1478 } 1479 1480 ret = v4l2_fwnode_device_parse(&client->dev, &props); 1481 if (ret) 1482 goto error; 1483 1484 ret = v4l2_ctrl_new_fwnode_properties(ctrl_hdlr, &hi846_ctrl_ops, 1485 &props); 1486 if (ret) 1487 goto error; 1488 1489 hi846->sd.ctrl_handler = ctrl_hdlr; 1490 1491 return 0; 1492 1493 error: 1494 v4l2_ctrl_handler_free(ctrl_hdlr); 1495 return ret; 1496 } 1497 1498 static int hi846_set_video_mode(struct hi846 *hi846, int fps) 1499 { 1500 struct i2c_client *client = v4l2_get_subdevdata(&hi846->sd); 1501 u64 frame_length; 1502 int ret = 0; 1503 int dummy_lines; 1504 u64 link_freq = hi846_get_link_freq(hi846); 1505 1506 dev_dbg(&client->dev, "%s: link freq: %llu\n", __func__, 1507 hi846_get_link_freq(hi846)); 1508 1509 do_div(link_freq, fps); 1510 frame_length = link_freq; 1511 do_div(frame_length, HI846_LINE_LENGTH); 1512 1513 dummy_lines = (frame_length > hi846->cur_mode->frame_len) ? 1514 (frame_length - hi846->cur_mode->frame_len) : 0; 1515 1516 frame_length = hi846->cur_mode->frame_len + dummy_lines; 1517 1518 dev_dbg(&client->dev, "%s: frame length calculated: %llu\n", __func__, 1519 frame_length); 1520 1521 hi846_write_reg_16(hi846, HI846_REG_FLL, frame_length & 0xFFFF, &ret); 1522 hi846_write_reg_16(hi846, HI846_REG_LLP, 1523 HI846_LINE_LENGTH & 0xFFFF, &ret); 1524 1525 return ret; 1526 } 1527 1528 static int hi846_start_streaming(struct hi846 *hi846) 1529 { 1530 struct i2c_client *client = v4l2_get_subdevdata(&hi846->sd); 1531 int ret = 0; 1532 u8 val; 1533 1534 if (hi846->nr_lanes == 2) 1535 ret = hi846_write_reg_list(hi846, &hi846_init_regs_list_2lane); 1536 else 1537 ret = hi846_write_reg_list(hi846, &hi846_init_regs_list_4lane); 1538 if (ret) { 1539 dev_err(&client->dev, "failed to set plls: %d\n", ret); 1540 return ret; 1541 } 1542 1543 ret = hi846_write_reg_list(hi846, &hi846->cur_mode->reg_list_config); 1544 if (ret) { 1545 dev_err(&client->dev, "failed to set mode: %d\n", ret); 1546 return ret; 1547 } 1548 1549 if (hi846->nr_lanes == 2) 1550 ret = hi846_write_reg_list(hi846, 1551 &hi846->cur_mode->reg_list_2lane); 1552 else 1553 ret = hi846_write_reg_list(hi846, 1554 &hi846->cur_mode->reg_list_4lane); 1555 if (ret) { 1556 dev_err(&client->dev, "failed to set mipi mode: %d\n", ret); 1557 return ret; 1558 } 1559 1560 hi846_set_video_mode(hi846, hi846->cur_mode->fps); 1561 1562 ret = __v4l2_ctrl_handler_setup(hi846->sd.ctrl_handler); 1563 if (ret) 1564 return ret; 1565 1566 /* 1567 * Reading 0x0034 is purely done for debugging reasons: It is not 1568 * documented in the DS but only mentioned once: 1569 * "If 0x0034[2] bit is disabled , Visible pixel width and height is 0." 1570 * So even though that sounds like we won't see anything, we don't 1571 * know more about this, so in that case only inform the user but do 1572 * nothing more. 1573 */ 1574 ret = hi846_read_reg(hi846, 0x0034, &val); 1575 if (ret) 1576 return ret; 1577 if (!(val & BIT(2))) 1578 dev_info(&client->dev, "visible pixel width and height is 0\n"); 1579 1580 ret = hi846_write_reg(hi846, HI846_REG_MODE_SELECT, 1581 HI846_MODE_STREAMING); 1582 if (ret) { 1583 dev_err(&client->dev, "failed to start stream"); 1584 return ret; 1585 } 1586 1587 hi846->streaming = 1; 1588 1589 dev_dbg(&client->dev, "%s: started streaming successfully\n", __func__); 1590 1591 return ret; 1592 } 1593 1594 static void hi846_stop_streaming(struct hi846 *hi846) 1595 { 1596 struct i2c_client *client = v4l2_get_subdevdata(&hi846->sd); 1597 1598 if (hi846_write_reg(hi846, HI846_REG_MODE_SELECT, HI846_MODE_STANDBY)) 1599 dev_err(&client->dev, "failed to stop stream"); 1600 1601 hi846->streaming = 0; 1602 } 1603 1604 static int hi846_set_stream(struct v4l2_subdev *sd, int enable) 1605 { 1606 struct hi846 *hi846 = to_hi846(sd); 1607 struct i2c_client *client = v4l2_get_subdevdata(sd); 1608 int ret = 0; 1609 1610 mutex_lock(&hi846->mutex); 1611 1612 if (enable) { 1613 ret = pm_runtime_resume_and_get(&client->dev); 1614 if (ret) 1615 goto out; 1616 1617 ret = hi846_start_streaming(hi846); 1618 } 1619 1620 if (!enable || ret) { 1621 hi846_stop_streaming(hi846); 1622 pm_runtime_put(&client->dev); 1623 } 1624 1625 out: 1626 mutex_unlock(&hi846->mutex); 1627 1628 return ret; 1629 } 1630 1631 static int hi846_power_on(struct hi846 *hi846) 1632 { 1633 int ret; 1634 1635 ret = regulator_bulk_enable(HI846_NUM_SUPPLIES, hi846->supplies); 1636 if (ret < 0) 1637 return ret; 1638 1639 ret = clk_prepare_enable(hi846->clock); 1640 if (ret < 0) 1641 goto err_reg; 1642 1643 if (hi846->shutdown_gpio) 1644 gpiod_set_value_cansleep(hi846->shutdown_gpio, 0); 1645 1646 /* 30us = 2400 cycles at 80Mhz */ 1647 usleep_range(30, 60); 1648 if (hi846->rst_gpio) 1649 gpiod_set_value_cansleep(hi846->rst_gpio, 0); 1650 usleep_range(30, 60); 1651 1652 return 0; 1653 1654 err_reg: 1655 regulator_bulk_disable(HI846_NUM_SUPPLIES, hi846->supplies); 1656 1657 return ret; 1658 } 1659 1660 static int hi846_power_off(struct hi846 *hi846) 1661 { 1662 if (hi846->rst_gpio) 1663 gpiod_set_value_cansleep(hi846->rst_gpio, 1); 1664 1665 if (hi846->shutdown_gpio) 1666 gpiod_set_value_cansleep(hi846->shutdown_gpio, 1); 1667 1668 clk_disable_unprepare(hi846->clock); 1669 return regulator_bulk_disable(HI846_NUM_SUPPLIES, hi846->supplies); 1670 } 1671 1672 static int __maybe_unused hi846_suspend(struct device *dev) 1673 { 1674 struct i2c_client *client = to_i2c_client(dev); 1675 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1676 struct hi846 *hi846 = to_hi846(sd); 1677 1678 return hi846_power_off(hi846); 1679 } 1680 1681 static int __maybe_unused hi846_resume(struct device *dev) 1682 { 1683 struct i2c_client *client = to_i2c_client(dev); 1684 struct v4l2_subdev *sd = i2c_get_clientdata(client); 1685 struct hi846 *hi846 = to_hi846(sd); 1686 1687 return hi846_power_on(hi846); 1688 } 1689 1690 static int hi846_set_format(struct v4l2_subdev *sd, 1691 struct v4l2_subdev_state *sd_state, 1692 struct v4l2_subdev_format *format) 1693 { 1694 struct hi846 *hi846 = to_hi846(sd); 1695 struct v4l2_mbus_framefmt *mf = &format->format; 1696 struct i2c_client *client = v4l2_get_subdevdata(sd); 1697 const struct hi846_datafmt *fmt = hi846_find_datafmt(mf->code); 1698 u32 tgt_fps; 1699 s32 vblank_def, h_blank; 1700 1701 if (!fmt) { 1702 mf->code = hi846_colour_fmts[0].code; 1703 mf->colorspace = hi846_colour_fmts[0].colorspace; 1704 fmt = &hi846_colour_fmts[0]; 1705 } 1706 1707 if (format->which == V4L2_SUBDEV_FORMAT_TRY) { 1708 *v4l2_subdev_get_try_format(sd, sd_state, format->pad) = *mf; 1709 return 0; 1710 } 1711 1712 if (hi846->nr_lanes == 2) { 1713 if (!hi846->cur_mode->reg_list_2lane.num_of_regs) { 1714 dev_err(&client->dev, 1715 "this mode is not supported for 2 lanes\n"); 1716 return -EINVAL; 1717 } 1718 } else { 1719 if (!hi846->cur_mode->reg_list_4lane.num_of_regs) { 1720 dev_err(&client->dev, 1721 "this mode is not supported for 4 lanes\n"); 1722 return -EINVAL; 1723 } 1724 } 1725 1726 mutex_lock(&hi846->mutex); 1727 1728 if (hi846->streaming) { 1729 mutex_unlock(&hi846->mutex); 1730 return -EBUSY; 1731 } 1732 1733 hi846->fmt = fmt; 1734 1735 hi846->cur_mode = 1736 v4l2_find_nearest_size(supported_modes, 1737 ARRAY_SIZE(supported_modes), 1738 width, height, mf->width, mf->height); 1739 dev_dbg(&client->dev, "%s: found mode: %dx%d\n", __func__, 1740 hi846->cur_mode->width, hi846->cur_mode->height); 1741 1742 tgt_fps = hi846->cur_mode->fps; 1743 dev_dbg(&client->dev, "%s: target fps: %d\n", __func__, tgt_fps); 1744 1745 mf->width = hi846->cur_mode->width; 1746 mf->height = hi846->cur_mode->height; 1747 mf->code = HI846_MEDIA_BUS_FORMAT; 1748 mf->field = V4L2_FIELD_NONE; 1749 1750 __v4l2_ctrl_s_ctrl(hi846->link_freq, hi846_get_link_freq_index(hi846)); 1751 __v4l2_ctrl_s_ctrl_int64(hi846->pixel_rate, 1752 hi846_calc_pixel_rate(hi846)); 1753 1754 /* Update limits and set FPS to default */ 1755 vblank_def = hi846->cur_mode->frame_len - hi846->cur_mode->height; 1756 __v4l2_ctrl_modify_range(hi846->vblank, 1757 hi846->cur_mode->frame_len - 1758 hi846->cur_mode->height, 1759 HI846_FLL_MAX - hi846->cur_mode->height, 1, 1760 vblank_def); 1761 __v4l2_ctrl_s_ctrl(hi846->vblank, vblank_def); 1762 1763 h_blank = hi846->cur_mode->llp - hi846->cur_mode->width; 1764 1765 __v4l2_ctrl_modify_range(hi846->hblank, h_blank, h_blank, 1, 1766 h_blank); 1767 1768 dev_dbg(&client->dev, "Set fmt w=%d h=%d code=0x%x colorspace=0x%x\n", 1769 mf->width, mf->height, 1770 fmt->code, fmt->colorspace); 1771 1772 mutex_unlock(&hi846->mutex); 1773 1774 return 0; 1775 } 1776 1777 static int hi846_get_format(struct v4l2_subdev *sd, 1778 struct v4l2_subdev_state *sd_state, 1779 struct v4l2_subdev_format *format) 1780 { 1781 struct hi846 *hi846 = to_hi846(sd); 1782 struct v4l2_mbus_framefmt *mf = &format->format; 1783 struct i2c_client *client = v4l2_get_subdevdata(sd); 1784 1785 if (format->which == V4L2_SUBDEV_FORMAT_TRY) { 1786 format->format = *v4l2_subdev_get_try_format(&hi846->sd, 1787 sd_state, 1788 format->pad); 1789 return 0; 1790 } 1791 1792 mutex_lock(&hi846->mutex); 1793 mf->code = HI846_MEDIA_BUS_FORMAT; 1794 mf->colorspace = V4L2_COLORSPACE_RAW; 1795 mf->field = V4L2_FIELD_NONE; 1796 mf->width = hi846->cur_mode->width; 1797 mf->height = hi846->cur_mode->height; 1798 mutex_unlock(&hi846->mutex); 1799 dev_dbg(&client->dev, 1800 "Get format w=%d h=%d code=0x%x colorspace=0x%x\n", 1801 mf->width, mf->height, mf->code, mf->colorspace); 1802 1803 return 0; 1804 } 1805 1806 static int hi846_enum_mbus_code(struct v4l2_subdev *sd, 1807 struct v4l2_subdev_state *sd_state, 1808 struct v4l2_subdev_mbus_code_enum *code) 1809 { 1810 if (code->pad || code->index > 0) 1811 return -EINVAL; 1812 1813 code->code = HI846_MEDIA_BUS_FORMAT; 1814 1815 return 0; 1816 } 1817 1818 static int hi846_enum_frame_size(struct v4l2_subdev *sd, 1819 struct v4l2_subdev_state *sd_state, 1820 struct v4l2_subdev_frame_size_enum *fse) 1821 { 1822 struct i2c_client *client = v4l2_get_subdevdata(sd); 1823 1824 if (fse->pad || fse->index >= ARRAY_SIZE(supported_modes)) 1825 return -EINVAL; 1826 1827 if (fse->code != HI846_MEDIA_BUS_FORMAT) { 1828 dev_err(&client->dev, "frame size enum not matching\n"); 1829 return -EINVAL; 1830 } 1831 1832 fse->min_width = supported_modes[fse->index].width; 1833 fse->max_width = supported_modes[fse->index].width; 1834 fse->min_height = supported_modes[fse->index].height; 1835 fse->max_height = supported_modes[fse->index].height; 1836 1837 dev_dbg(&client->dev, "%s: max width: %d max height: %d\n", __func__, 1838 fse->max_width, fse->max_height); 1839 1840 return 0; 1841 } 1842 1843 static int hi846_get_selection(struct v4l2_subdev *sd, 1844 struct v4l2_subdev_state *sd_state, 1845 struct v4l2_subdev_selection *sel) 1846 { 1847 struct hi846 *hi846 = to_hi846(sd); 1848 1849 switch (sel->target) { 1850 case V4L2_SEL_TGT_CROP: 1851 case V4L2_SEL_TGT_CROP_DEFAULT: 1852 mutex_lock(&hi846->mutex); 1853 switch (sel->which) { 1854 case V4L2_SUBDEV_FORMAT_TRY: 1855 v4l2_subdev_get_try_crop(sd, sd_state, sel->pad); 1856 break; 1857 case V4L2_SUBDEV_FORMAT_ACTIVE: 1858 sel->r = hi846->cur_mode->crop; 1859 break; 1860 } 1861 mutex_unlock(&hi846->mutex); 1862 return 0; 1863 case V4L2_SEL_TGT_CROP_BOUNDS: 1864 case V4L2_SEL_TGT_NATIVE_SIZE: 1865 sel->r.top = 0; 1866 sel->r.left = 0; 1867 sel->r.width = 3264; 1868 sel->r.height = 2448; 1869 return 0; 1870 default: 1871 return -EINVAL; 1872 } 1873 } 1874 1875 static int hi846_init_cfg(struct v4l2_subdev *sd, 1876 struct v4l2_subdev_state *sd_state) 1877 { 1878 struct hi846 *hi846 = to_hi846(sd); 1879 struct v4l2_mbus_framefmt *mf; 1880 1881 mf = v4l2_subdev_get_try_format(sd, sd_state, 0); 1882 1883 mutex_lock(&hi846->mutex); 1884 mf->code = HI846_MEDIA_BUS_FORMAT; 1885 mf->colorspace = V4L2_COLORSPACE_RAW; 1886 mf->field = V4L2_FIELD_NONE; 1887 mf->width = hi846->cur_mode->width; 1888 mf->height = hi846->cur_mode->height; 1889 mutex_unlock(&hi846->mutex); 1890 1891 return 0; 1892 } 1893 1894 static const struct v4l2_subdev_video_ops hi846_video_ops = { 1895 .s_stream = hi846_set_stream, 1896 }; 1897 1898 static const struct v4l2_subdev_pad_ops hi846_pad_ops = { 1899 .init_cfg = hi846_init_cfg, 1900 .enum_frame_size = hi846_enum_frame_size, 1901 .enum_mbus_code = hi846_enum_mbus_code, 1902 .set_fmt = hi846_set_format, 1903 .get_fmt = hi846_get_format, 1904 .get_selection = hi846_get_selection, 1905 }; 1906 1907 static const struct v4l2_subdev_ops hi846_subdev_ops = { 1908 .video = &hi846_video_ops, 1909 .pad = &hi846_pad_ops, 1910 }; 1911 1912 static const struct media_entity_operations hi846_subdev_entity_ops = { 1913 .link_validate = v4l2_subdev_link_validate, 1914 }; 1915 1916 static int hi846_identify_module(struct hi846 *hi846) 1917 { 1918 struct i2c_client *client = v4l2_get_subdevdata(&hi846->sd); 1919 int ret; 1920 u8 hi, lo; 1921 1922 ret = hi846_read_reg(hi846, HI846_REG_CHIP_ID_L, &lo); 1923 if (ret) 1924 return ret; 1925 1926 if (lo != HI846_CHIP_ID_L) { 1927 dev_err(&client->dev, "wrong chip id low byte: %x", lo); 1928 return -ENXIO; 1929 } 1930 1931 ret = hi846_read_reg(hi846, HI846_REG_CHIP_ID_H, &hi); 1932 if (ret) 1933 return ret; 1934 1935 if (hi != HI846_CHIP_ID_H) { 1936 dev_err(&client->dev, "wrong chip id high byte: %x", hi); 1937 return -ENXIO; 1938 } 1939 1940 dev_info(&client->dev, "chip id %02X %02X using %d mipi lanes\n", 1941 hi, lo, hi846->nr_lanes); 1942 1943 return 0; 1944 } 1945 1946 static s64 hi846_check_link_freqs(struct hi846 *hi846, 1947 struct v4l2_fwnode_endpoint *ep) 1948 { 1949 const s64 *freqs = hi846_link_freqs; 1950 int freqs_count = ARRAY_SIZE(hi846_link_freqs); 1951 int i, j; 1952 1953 for (i = 0; i < freqs_count; i++) { 1954 for (j = 0; j < ep->nr_of_link_frequencies; j++) 1955 if (freqs[i] == ep->link_frequencies[j]) 1956 break; 1957 if (j == ep->nr_of_link_frequencies) 1958 return freqs[i]; 1959 } 1960 1961 return 0; 1962 } 1963 1964 static int hi846_parse_dt(struct hi846 *hi846, struct device *dev) 1965 { 1966 struct fwnode_handle *ep; 1967 struct fwnode_handle *fwnode = dev_fwnode(dev); 1968 struct v4l2_fwnode_endpoint bus_cfg = { 1969 .bus_type = V4L2_MBUS_CSI2_DPHY 1970 }; 1971 int ret; 1972 s64 fq; 1973 1974 ep = fwnode_graph_get_next_endpoint(fwnode, NULL); 1975 if (!ep) { 1976 dev_err(dev, "unable to find endpoint node\n"); 1977 return -ENXIO; 1978 } 1979 1980 ret = v4l2_fwnode_endpoint_alloc_parse(ep, &bus_cfg); 1981 fwnode_handle_put(ep); 1982 if (ret) { 1983 dev_err(dev, "failed to parse endpoint node: %d\n", ret); 1984 return ret; 1985 } 1986 1987 if (bus_cfg.bus.mipi_csi2.num_data_lanes != 2 && 1988 bus_cfg.bus.mipi_csi2.num_data_lanes != 4) { 1989 dev_err(dev, "number of CSI2 data lanes %d is not supported", 1990 bus_cfg.bus.mipi_csi2.num_data_lanes); 1991 ret = -EINVAL; 1992 goto check_hwcfg_error; 1993 } 1994 1995 hi846->nr_lanes = bus_cfg.bus.mipi_csi2.num_data_lanes; 1996 1997 if (!bus_cfg.nr_of_link_frequencies) { 1998 dev_err(dev, "link-frequency property not found in DT\n"); 1999 ret = -EINVAL; 2000 goto check_hwcfg_error; 2001 } 2002 2003 /* Check that link frequences for all the modes are in device tree */ 2004 fq = hi846_check_link_freqs(hi846, &bus_cfg); 2005 if (fq) { 2006 dev_err(dev, "Link frequency of %lld is not supported\n", fq); 2007 ret = -EINVAL; 2008 goto check_hwcfg_error; 2009 } 2010 2011 v4l2_fwnode_endpoint_free(&bus_cfg); 2012 2013 hi846->rst_gpio = devm_gpiod_get_optional(dev, "reset", GPIOD_OUT_LOW); 2014 if (IS_ERR(hi846->rst_gpio)) { 2015 dev_err(dev, "failed to get reset gpio: %pe\n", 2016 hi846->rst_gpio); 2017 return PTR_ERR(hi846->rst_gpio); 2018 } 2019 2020 hi846->shutdown_gpio = devm_gpiod_get_optional(dev, "shutdown", 2021 GPIOD_OUT_LOW); 2022 if (IS_ERR(hi846->shutdown_gpio)) { 2023 dev_err(dev, "failed to get shutdown gpio: %pe\n", 2024 hi846->shutdown_gpio); 2025 return PTR_ERR(hi846->shutdown_gpio); 2026 } 2027 2028 return 0; 2029 2030 check_hwcfg_error: 2031 v4l2_fwnode_endpoint_free(&bus_cfg); 2032 return ret; 2033 } 2034 2035 static int hi846_probe(struct i2c_client *client) 2036 { 2037 struct hi846 *hi846; 2038 int ret; 2039 int i; 2040 u32 mclk_freq; 2041 2042 hi846 = devm_kzalloc(&client->dev, sizeof(*hi846), GFP_KERNEL); 2043 if (!hi846) 2044 return -ENOMEM; 2045 2046 ret = hi846_parse_dt(hi846, &client->dev); 2047 if (ret) { 2048 dev_err(&client->dev, "failed to check HW configuration: %d", 2049 ret); 2050 return ret; 2051 } 2052 2053 hi846->clock = devm_clk_get(&client->dev, NULL); 2054 if (IS_ERR(hi846->clock)) { 2055 dev_err(&client->dev, "failed to get clock: %pe\n", 2056 hi846->clock); 2057 return PTR_ERR(hi846->clock); 2058 } 2059 2060 mclk_freq = clk_get_rate(hi846->clock); 2061 if (mclk_freq != 25000000) 2062 dev_warn(&client->dev, 2063 "External clock freq should be 25000000, not %u.\n", 2064 mclk_freq); 2065 2066 for (i = 0; i < HI846_NUM_SUPPLIES; i++) 2067 hi846->supplies[i].supply = hi846_supply_names[i]; 2068 2069 ret = devm_regulator_bulk_get(&client->dev, HI846_NUM_SUPPLIES, 2070 hi846->supplies); 2071 if (ret < 0) 2072 return ret; 2073 2074 v4l2_i2c_subdev_init(&hi846->sd, client, &hi846_subdev_ops); 2075 2076 mutex_init(&hi846->mutex); 2077 2078 ret = hi846_power_on(hi846); 2079 if (ret) 2080 goto err_mutex; 2081 2082 ret = hi846_identify_module(hi846); 2083 if (ret) 2084 goto err_power_off; 2085 2086 hi846->cur_mode = &supported_modes[0]; 2087 2088 ret = hi846_init_controls(hi846); 2089 if (ret) { 2090 dev_err(&client->dev, "failed to init controls: %d", ret); 2091 goto err_power_off; 2092 } 2093 2094 hi846->sd.flags |= V4L2_SUBDEV_FL_HAS_DEVNODE; 2095 hi846->sd.entity.ops = &hi846_subdev_entity_ops; 2096 hi846->sd.entity.function = MEDIA_ENT_F_CAM_SENSOR; 2097 hi846->pad.flags = MEDIA_PAD_FL_SOURCE; 2098 ret = media_entity_pads_init(&hi846->sd.entity, 1, &hi846->pad); 2099 if (ret) { 2100 dev_err(&client->dev, "failed to init entity pads: %d", ret); 2101 goto err_v4l2_ctrl_handler_free; 2102 } 2103 2104 ret = v4l2_async_register_subdev_sensor(&hi846->sd); 2105 if (ret < 0) { 2106 dev_err(&client->dev, "failed to register V4L2 subdev: %d", 2107 ret); 2108 goto err_media_entity_cleanup; 2109 } 2110 2111 pm_runtime_set_active(&client->dev); 2112 pm_runtime_enable(&client->dev); 2113 pm_runtime_idle(&client->dev); 2114 2115 return 0; 2116 2117 err_media_entity_cleanup: 2118 media_entity_cleanup(&hi846->sd.entity); 2119 2120 err_v4l2_ctrl_handler_free: 2121 v4l2_ctrl_handler_free(hi846->sd.ctrl_handler); 2122 2123 err_power_off: 2124 hi846_power_off(hi846); 2125 2126 err_mutex: 2127 mutex_destroy(&hi846->mutex); 2128 2129 return ret; 2130 } 2131 2132 static void hi846_remove(struct i2c_client *client) 2133 { 2134 struct v4l2_subdev *sd = i2c_get_clientdata(client); 2135 struct hi846 *hi846 = to_hi846(sd); 2136 2137 v4l2_async_unregister_subdev(sd); 2138 media_entity_cleanup(&sd->entity); 2139 v4l2_ctrl_handler_free(sd->ctrl_handler); 2140 2141 pm_runtime_disable(&client->dev); 2142 if (!pm_runtime_status_suspended(&client->dev)) 2143 hi846_suspend(&client->dev); 2144 pm_runtime_set_suspended(&client->dev); 2145 2146 mutex_destroy(&hi846->mutex); 2147 } 2148 2149 static const struct dev_pm_ops hi846_pm_ops = { 2150 SET_RUNTIME_PM_OPS(hi846_suspend, hi846_resume, NULL) 2151 }; 2152 2153 static const struct of_device_id hi846_of_match[] = { 2154 { .compatible = "hynix,hi846", }, 2155 {}, 2156 }; 2157 MODULE_DEVICE_TABLE(of, hi846_of_match); 2158 2159 static struct i2c_driver hi846_i2c_driver = { 2160 .driver = { 2161 .name = "hi846", 2162 .pm = &hi846_pm_ops, 2163 .of_match_table = hi846_of_match, 2164 }, 2165 .probe = hi846_probe, 2166 .remove = hi846_remove, 2167 }; 2168 2169 module_i2c_driver(hi846_i2c_driver); 2170 2171 MODULE_AUTHOR("Angus Ainslie <angus@akkea.ca>"); 2172 MODULE_AUTHOR("Martin Kepplinger <martin.kepplinger@puri.sm>"); 2173 MODULE_DESCRIPTION("Hynix HI846 sensor driver"); 2174 MODULE_LICENSE("GPL v2"); 2175