1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Analog Devices ADV7511 HDMI transmitter driver 4 * 5 * Copyright 2012 Analog Devices Inc. 6 */ 7 8 #include <linux/clk.h> 9 #include <linux/device.h> 10 #include <linux/gpio/consumer.h> 11 #include <linux/module.h> 12 #include <linux/of_device.h> 13 #include <linux/slab.h> 14 15 #include <media/cec.h> 16 17 #include <drm/drm_atomic.h> 18 #include <drm/drm_atomic_helper.h> 19 #include <drm/drm_edid.h> 20 #include <drm/drm_print.h> 21 #include <drm/drm_probe_helper.h> 22 23 #include "adv7511.h" 24 25 /* ADI recommended values for proper operation. */ 26 static const struct reg_sequence adv7511_fixed_registers[] = { 27 { 0x98, 0x03 }, 28 { 0x9a, 0xe0 }, 29 { 0x9c, 0x30 }, 30 { 0x9d, 0x61 }, 31 { 0xa2, 0xa4 }, 32 { 0xa3, 0xa4 }, 33 { 0xe0, 0xd0 }, 34 { 0xf9, 0x00 }, 35 { 0x55, 0x02 }, 36 }; 37 38 /* ----------------------------------------------------------------------------- 39 * Register access 40 */ 41 42 static const uint8_t adv7511_register_defaults[] = { 43 0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00 */ 44 0x00, 0x00, 0x01, 0x0e, 0xbc, 0x18, 0x01, 0x13, 45 0x25, 0x37, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 10 */ 46 0x46, 0x62, 0x04, 0xa8, 0x00, 0x00, 0x1c, 0x84, 47 0x1c, 0xbf, 0x04, 0xa8, 0x1e, 0x70, 0x02, 0x1e, /* 20 */ 48 0x00, 0x00, 0x04, 0xa8, 0x08, 0x12, 0x1b, 0xac, 49 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 30 */ 50 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0xb0, 51 0x00, 0x50, 0x90, 0x7e, 0x79, 0x70, 0x00, 0x00, /* 40 */ 52 0x00, 0xa8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 53 0x00, 0x00, 0x02, 0x0d, 0x00, 0x00, 0x00, 0x00, /* 50 */ 54 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 55 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 60 */ 56 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 57 0x01, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 70 */ 58 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 59 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 80 */ 60 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 61 0x00, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 90 */ 62 0x0b, 0x02, 0x00, 0x18, 0x5a, 0x60, 0x00, 0x00, 63 0x00, 0x00, 0x80, 0x80, 0x08, 0x04, 0x00, 0x00, /* a0 */ 64 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x40, 0x14, 65 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* b0 */ 66 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 67 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* c0 */ 68 0x00, 0x03, 0x00, 0x00, 0x02, 0x00, 0x01, 0x04, 69 0x30, 0xff, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, /* d0 */ 70 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x01, 71 0x80, 0x75, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, /* e0 */ 72 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 73 0x00, 0x00, 0x00, 0x00, 0x00, 0x75, 0x11, 0x00, /* f0 */ 74 0x00, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 75 }; 76 77 static bool adv7511_register_volatile(struct device *dev, unsigned int reg) 78 { 79 switch (reg) { 80 case ADV7511_REG_CHIP_REVISION: 81 case ADV7511_REG_SPDIF_FREQ: 82 case ADV7511_REG_CTS_AUTOMATIC1: 83 case ADV7511_REG_CTS_AUTOMATIC2: 84 case ADV7511_REG_VIC_DETECTED: 85 case ADV7511_REG_VIC_SEND: 86 case ADV7511_REG_AUX_VIC_DETECTED: 87 case ADV7511_REG_STATUS: 88 case ADV7511_REG_GC(1): 89 case ADV7511_REG_INT(0): 90 case ADV7511_REG_INT(1): 91 case ADV7511_REG_PLL_STATUS: 92 case ADV7511_REG_AN(0): 93 case ADV7511_REG_AN(1): 94 case ADV7511_REG_AN(2): 95 case ADV7511_REG_AN(3): 96 case ADV7511_REG_AN(4): 97 case ADV7511_REG_AN(5): 98 case ADV7511_REG_AN(6): 99 case ADV7511_REG_AN(7): 100 case ADV7511_REG_HDCP_STATUS: 101 case ADV7511_REG_BCAPS: 102 case ADV7511_REG_BKSV(0): 103 case ADV7511_REG_BKSV(1): 104 case ADV7511_REG_BKSV(2): 105 case ADV7511_REG_BKSV(3): 106 case ADV7511_REG_BKSV(4): 107 case ADV7511_REG_DDC_STATUS: 108 case ADV7511_REG_EDID_READ_CTRL: 109 case ADV7511_REG_BSTATUS(0): 110 case ADV7511_REG_BSTATUS(1): 111 case ADV7511_REG_CHIP_ID_HIGH: 112 case ADV7511_REG_CHIP_ID_LOW: 113 return true; 114 } 115 116 return false; 117 } 118 119 static const struct regmap_config adv7511_regmap_config = { 120 .reg_bits = 8, 121 .val_bits = 8, 122 123 .max_register = 0xff, 124 .cache_type = REGCACHE_RBTREE, 125 .reg_defaults_raw = adv7511_register_defaults, 126 .num_reg_defaults_raw = ARRAY_SIZE(adv7511_register_defaults), 127 128 .volatile_reg = adv7511_register_volatile, 129 }; 130 131 /* ----------------------------------------------------------------------------- 132 * Hardware configuration 133 */ 134 135 static void adv7511_set_colormap(struct adv7511 *adv7511, bool enable, 136 const uint16_t *coeff, 137 unsigned int scaling_factor) 138 { 139 unsigned int i; 140 141 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1), 142 ADV7511_CSC_UPDATE_MODE, ADV7511_CSC_UPDATE_MODE); 143 144 if (enable) { 145 for (i = 0; i < 12; ++i) { 146 regmap_update_bits(adv7511->regmap, 147 ADV7511_REG_CSC_UPPER(i), 148 0x1f, coeff[i] >> 8); 149 regmap_write(adv7511->regmap, 150 ADV7511_REG_CSC_LOWER(i), 151 coeff[i] & 0xff); 152 } 153 } 154 155 if (enable) 156 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0), 157 0xe0, 0x80 | (scaling_factor << 5)); 158 else 159 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0), 160 0x80, 0x00); 161 162 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1), 163 ADV7511_CSC_UPDATE_MODE, 0); 164 } 165 166 static int adv7511_packet_enable(struct adv7511 *adv7511, unsigned int packet) 167 { 168 if (packet & 0xff) 169 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0, 170 packet, 0xff); 171 172 if (packet & 0xff00) { 173 packet >>= 8; 174 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1, 175 packet, 0xff); 176 } 177 178 return 0; 179 } 180 181 static int adv7511_packet_disable(struct adv7511 *adv7511, unsigned int packet) 182 { 183 if (packet & 0xff) 184 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0, 185 packet, 0x00); 186 187 if (packet & 0xff00) { 188 packet >>= 8; 189 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1, 190 packet, 0x00); 191 } 192 193 return 0; 194 } 195 196 /* Coefficients for adv7511 color space conversion */ 197 static const uint16_t adv7511_csc_ycbcr_to_rgb[] = { 198 0x0734, 0x04ad, 0x0000, 0x1c1b, 199 0x1ddc, 0x04ad, 0x1f24, 0x0135, 200 0x0000, 0x04ad, 0x087c, 0x1b77, 201 }; 202 203 static void adv7511_set_config_csc(struct adv7511 *adv7511, 204 struct drm_connector *connector, 205 bool rgb, bool hdmi_mode) 206 { 207 struct adv7511_video_config config; 208 bool output_format_422, output_format_ycbcr; 209 unsigned int mode; 210 uint8_t infoframe[17]; 211 212 config.hdmi_mode = hdmi_mode; 213 214 hdmi_avi_infoframe_init(&config.avi_infoframe); 215 216 config.avi_infoframe.scan_mode = HDMI_SCAN_MODE_UNDERSCAN; 217 218 if (rgb) { 219 config.csc_enable = false; 220 config.avi_infoframe.colorspace = HDMI_COLORSPACE_RGB; 221 } else { 222 config.csc_scaling_factor = ADV7511_CSC_SCALING_4; 223 config.csc_coefficents = adv7511_csc_ycbcr_to_rgb; 224 225 if ((connector->display_info.color_formats & 226 DRM_COLOR_FORMAT_YCRCB422) && 227 config.hdmi_mode) { 228 config.csc_enable = false; 229 config.avi_infoframe.colorspace = 230 HDMI_COLORSPACE_YUV422; 231 } else { 232 config.csc_enable = true; 233 config.avi_infoframe.colorspace = HDMI_COLORSPACE_RGB; 234 } 235 } 236 237 if (config.hdmi_mode) { 238 mode = ADV7511_HDMI_CFG_MODE_HDMI; 239 240 switch (config.avi_infoframe.colorspace) { 241 case HDMI_COLORSPACE_YUV444: 242 output_format_422 = false; 243 output_format_ycbcr = true; 244 break; 245 case HDMI_COLORSPACE_YUV422: 246 output_format_422 = true; 247 output_format_ycbcr = true; 248 break; 249 default: 250 output_format_422 = false; 251 output_format_ycbcr = false; 252 break; 253 } 254 } else { 255 mode = ADV7511_HDMI_CFG_MODE_DVI; 256 output_format_422 = false; 257 output_format_ycbcr = false; 258 } 259 260 adv7511_packet_disable(adv7511, ADV7511_PACKET_ENABLE_AVI_INFOFRAME); 261 262 adv7511_set_colormap(adv7511, config.csc_enable, 263 config.csc_coefficents, 264 config.csc_scaling_factor); 265 266 regmap_update_bits(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG1, 0x81, 267 (output_format_422 << 7) | output_format_ycbcr); 268 269 regmap_update_bits(adv7511->regmap, ADV7511_REG_HDCP_HDMI_CFG, 270 ADV7511_HDMI_CFG_MODE_MASK, mode); 271 272 hdmi_avi_infoframe_pack(&config.avi_infoframe, infoframe, 273 sizeof(infoframe)); 274 275 /* The AVI infoframe id is not configurable */ 276 regmap_bulk_write(adv7511->regmap, ADV7511_REG_AVI_INFOFRAME_VERSION, 277 infoframe + 1, sizeof(infoframe) - 1); 278 279 adv7511_packet_enable(adv7511, ADV7511_PACKET_ENABLE_AVI_INFOFRAME); 280 } 281 282 static void adv7511_set_link_config(struct adv7511 *adv7511, 283 const struct adv7511_link_config *config) 284 { 285 /* 286 * The input style values documented in the datasheet don't match the 287 * hardware register field values :-( 288 */ 289 static const unsigned int input_styles[4] = { 0, 2, 1, 3 }; 290 291 unsigned int clock_delay; 292 unsigned int color_depth; 293 unsigned int input_id; 294 295 clock_delay = (config->clock_delay + 1200) / 400; 296 color_depth = config->input_color_depth == 8 ? 3 297 : (config->input_color_depth == 10 ? 1 : 2); 298 299 /* TODO Support input ID 6 */ 300 if (config->input_colorspace != HDMI_COLORSPACE_YUV422) 301 input_id = config->input_clock == ADV7511_INPUT_CLOCK_DDR 302 ? 5 : 0; 303 else if (config->input_clock == ADV7511_INPUT_CLOCK_DDR) 304 input_id = config->embedded_sync ? 8 : 7; 305 else if (config->input_clock == ADV7511_INPUT_CLOCK_2X) 306 input_id = config->embedded_sync ? 4 : 3; 307 else 308 input_id = config->embedded_sync ? 2 : 1; 309 310 regmap_update_bits(adv7511->regmap, ADV7511_REG_I2C_FREQ_ID_CFG, 0xf, 311 input_id); 312 regmap_update_bits(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG1, 0x7e, 313 (color_depth << 4) | 314 (input_styles[config->input_style] << 2)); 315 regmap_write(adv7511->regmap, ADV7511_REG_VIDEO_INPUT_CFG2, 316 config->input_justification << 3); 317 regmap_write(adv7511->regmap, ADV7511_REG_TIMING_GEN_SEQ, 318 config->sync_pulse << 2); 319 320 regmap_write(adv7511->regmap, 0xba, clock_delay << 5); 321 322 adv7511->embedded_sync = config->embedded_sync; 323 adv7511->hsync_polarity = config->hsync_polarity; 324 adv7511->vsync_polarity = config->vsync_polarity; 325 adv7511->rgb = config->input_colorspace == HDMI_COLORSPACE_RGB; 326 } 327 328 static void __adv7511_power_on(struct adv7511 *adv7511) 329 { 330 adv7511->current_edid_segment = -1; 331 332 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER, 333 ADV7511_POWER_POWER_DOWN, 0); 334 if (adv7511->i2c_main->irq) { 335 /* 336 * Documentation says the INT_ENABLE registers are reset in 337 * POWER_DOWN mode. My 7511w preserved the bits, however. 338 * Still, let's be safe and stick to the documentation. 339 */ 340 regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(0), 341 ADV7511_INT0_EDID_READY | ADV7511_INT0_HPD); 342 regmap_update_bits(adv7511->regmap, 343 ADV7511_REG_INT_ENABLE(1), 344 ADV7511_INT1_DDC_ERROR, 345 ADV7511_INT1_DDC_ERROR); 346 } 347 348 /* 349 * Per spec it is allowed to pulse the HPD signal to indicate that the 350 * EDID information has changed. Some monitors do this when they wakeup 351 * from standby or are enabled. When the HPD goes low the adv7511 is 352 * reset and the outputs are disabled which might cause the monitor to 353 * go to standby again. To avoid this we ignore the HPD pin for the 354 * first few seconds after enabling the output. 355 */ 356 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2, 357 ADV7511_REG_POWER2_HPD_SRC_MASK, 358 ADV7511_REG_POWER2_HPD_SRC_NONE); 359 } 360 361 static void adv7511_power_on(struct adv7511 *adv7511) 362 { 363 __adv7511_power_on(adv7511); 364 365 /* 366 * Most of the registers are reset during power down or when HPD is low. 367 */ 368 regcache_sync(adv7511->regmap); 369 370 if (adv7511->type == ADV7533 || adv7511->type == ADV7535) 371 adv7533_dsi_power_on(adv7511); 372 adv7511->powered = true; 373 } 374 375 static void __adv7511_power_off(struct adv7511 *adv7511) 376 { 377 /* TODO: setup additional power down modes */ 378 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER, 379 ADV7511_POWER_POWER_DOWN, 380 ADV7511_POWER_POWER_DOWN); 381 regmap_update_bits(adv7511->regmap, 382 ADV7511_REG_INT_ENABLE(1), 383 ADV7511_INT1_DDC_ERROR, 0); 384 regcache_mark_dirty(adv7511->regmap); 385 } 386 387 static void adv7511_power_off(struct adv7511 *adv7511) 388 { 389 __adv7511_power_off(adv7511); 390 if (adv7511->type == ADV7533 || adv7511->type == ADV7535) 391 adv7533_dsi_power_off(adv7511); 392 adv7511->powered = false; 393 } 394 395 /* ----------------------------------------------------------------------------- 396 * Interrupt and hotplug detection 397 */ 398 399 static bool adv7511_hpd(struct adv7511 *adv7511) 400 { 401 unsigned int irq0; 402 int ret; 403 404 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0); 405 if (ret < 0) 406 return false; 407 408 if (irq0 & ADV7511_INT0_HPD) { 409 regmap_write(adv7511->regmap, ADV7511_REG_INT(0), 410 ADV7511_INT0_HPD); 411 return true; 412 } 413 414 return false; 415 } 416 417 static void adv7511_hpd_work(struct work_struct *work) 418 { 419 struct adv7511 *adv7511 = container_of(work, struct adv7511, hpd_work); 420 enum drm_connector_status status; 421 unsigned int val; 422 int ret; 423 424 ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val); 425 if (ret < 0) 426 status = connector_status_disconnected; 427 else if (val & ADV7511_STATUS_HPD) 428 status = connector_status_connected; 429 else 430 status = connector_status_disconnected; 431 432 /* 433 * The bridge resets its registers on unplug. So when we get a plug 434 * event and we're already supposed to be powered, cycle the bridge to 435 * restore its state. 436 */ 437 if (status == connector_status_connected && 438 adv7511->connector.status == connector_status_disconnected && 439 adv7511->powered) { 440 regcache_mark_dirty(adv7511->regmap); 441 adv7511_power_on(adv7511); 442 } 443 444 if (adv7511->connector.status != status) { 445 adv7511->connector.status = status; 446 if (status == connector_status_disconnected) 447 cec_phys_addr_invalidate(adv7511->cec_adap); 448 drm_kms_helper_hotplug_event(adv7511->connector.dev); 449 } 450 } 451 452 static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd) 453 { 454 unsigned int irq0, irq1; 455 int ret; 456 457 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0); 458 if (ret < 0) 459 return ret; 460 461 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(1), &irq1); 462 if (ret < 0) 463 return ret; 464 465 regmap_write(adv7511->regmap, ADV7511_REG_INT(0), irq0); 466 regmap_write(adv7511->regmap, ADV7511_REG_INT(1), irq1); 467 468 if (process_hpd && irq0 & ADV7511_INT0_HPD && adv7511->bridge.encoder) 469 schedule_work(&adv7511->hpd_work); 470 471 if (irq0 & ADV7511_INT0_EDID_READY || irq1 & ADV7511_INT1_DDC_ERROR) { 472 adv7511->edid_read = true; 473 474 if (adv7511->i2c_main->irq) 475 wake_up_all(&adv7511->wq); 476 } 477 478 #ifdef CONFIG_DRM_I2C_ADV7511_CEC 479 adv7511_cec_irq_process(adv7511, irq1); 480 #endif 481 482 return 0; 483 } 484 485 static irqreturn_t adv7511_irq_handler(int irq, void *devid) 486 { 487 struct adv7511 *adv7511 = devid; 488 int ret; 489 490 ret = adv7511_irq_process(adv7511, true); 491 return ret < 0 ? IRQ_NONE : IRQ_HANDLED; 492 } 493 494 /* ----------------------------------------------------------------------------- 495 * EDID retrieval 496 */ 497 498 static int adv7511_wait_for_edid(struct adv7511 *adv7511, int timeout) 499 { 500 int ret; 501 502 if (adv7511->i2c_main->irq) { 503 ret = wait_event_interruptible_timeout(adv7511->wq, 504 adv7511->edid_read, msecs_to_jiffies(timeout)); 505 } else { 506 for (; timeout > 0; timeout -= 25) { 507 ret = adv7511_irq_process(adv7511, false); 508 if (ret < 0) 509 break; 510 511 if (adv7511->edid_read) 512 break; 513 514 msleep(25); 515 } 516 } 517 518 return adv7511->edid_read ? 0 : -EIO; 519 } 520 521 static int adv7511_get_edid_block(void *data, u8 *buf, unsigned int block, 522 size_t len) 523 { 524 struct adv7511 *adv7511 = data; 525 struct i2c_msg xfer[2]; 526 uint8_t offset; 527 unsigned int i; 528 int ret; 529 530 if (len > 128) 531 return -EINVAL; 532 533 if (adv7511->current_edid_segment != block / 2) { 534 unsigned int status; 535 536 ret = regmap_read(adv7511->regmap, ADV7511_REG_DDC_STATUS, 537 &status); 538 if (ret < 0) 539 return ret; 540 541 if (status != 2) { 542 adv7511->edid_read = false; 543 regmap_write(adv7511->regmap, ADV7511_REG_EDID_SEGMENT, 544 block); 545 ret = adv7511_wait_for_edid(adv7511, 200); 546 if (ret < 0) 547 return ret; 548 } 549 550 /* Break this apart, hopefully more I2C controllers will 551 * support 64 byte transfers than 256 byte transfers 552 */ 553 554 xfer[0].addr = adv7511->i2c_edid->addr; 555 xfer[0].flags = 0; 556 xfer[0].len = 1; 557 xfer[0].buf = &offset; 558 xfer[1].addr = adv7511->i2c_edid->addr; 559 xfer[1].flags = I2C_M_RD; 560 xfer[1].len = 64; 561 xfer[1].buf = adv7511->edid_buf; 562 563 offset = 0; 564 565 for (i = 0; i < 4; ++i) { 566 ret = i2c_transfer(adv7511->i2c_edid->adapter, xfer, 567 ARRAY_SIZE(xfer)); 568 if (ret < 0) 569 return ret; 570 else if (ret != 2) 571 return -EIO; 572 573 xfer[1].buf += 64; 574 offset += 64; 575 } 576 577 adv7511->current_edid_segment = block / 2; 578 } 579 580 if (block % 2 == 0) 581 memcpy(buf, adv7511->edid_buf, len); 582 else 583 memcpy(buf, adv7511->edid_buf + 128, len); 584 585 return 0; 586 } 587 588 /* ----------------------------------------------------------------------------- 589 * ADV75xx helpers 590 */ 591 592 static int adv7511_get_modes(struct adv7511 *adv7511, 593 struct drm_connector *connector) 594 { 595 struct edid *edid; 596 unsigned int count; 597 598 /* Reading the EDID only works if the device is powered */ 599 if (!adv7511->powered) { 600 unsigned int edid_i2c_addr = 601 (adv7511->i2c_edid->addr << 1); 602 603 __adv7511_power_on(adv7511); 604 605 /* Reset the EDID_I2C_ADDR register as it might be cleared */ 606 regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR, 607 edid_i2c_addr); 608 } 609 610 edid = drm_do_get_edid(connector, adv7511_get_edid_block, adv7511); 611 612 if (!adv7511->powered) 613 __adv7511_power_off(adv7511); 614 615 616 drm_connector_update_edid_property(connector, edid); 617 count = drm_add_edid_modes(connector, edid); 618 619 adv7511_set_config_csc(adv7511, connector, adv7511->rgb, 620 drm_detect_hdmi_monitor(edid)); 621 622 cec_s_phys_addr_from_edid(adv7511->cec_adap, edid); 623 624 kfree(edid); 625 626 return count; 627 } 628 629 static enum drm_connector_status 630 adv7511_detect(struct adv7511 *adv7511, struct drm_connector *connector) 631 { 632 enum drm_connector_status status; 633 unsigned int val; 634 bool hpd; 635 int ret; 636 637 ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val); 638 if (ret < 0) 639 return connector_status_disconnected; 640 641 if (val & ADV7511_STATUS_HPD) 642 status = connector_status_connected; 643 else 644 status = connector_status_disconnected; 645 646 hpd = adv7511_hpd(adv7511); 647 648 /* The chip resets itself when the cable is disconnected, so in case 649 * there is a pending HPD interrupt and the cable is connected there was 650 * at least one transition from disconnected to connected and the chip 651 * has to be reinitialized. */ 652 if (status == connector_status_connected && hpd && adv7511->powered) { 653 regcache_mark_dirty(adv7511->regmap); 654 adv7511_power_on(adv7511); 655 adv7511_get_modes(adv7511, connector); 656 if (adv7511->status == connector_status_connected) 657 status = connector_status_disconnected; 658 } else { 659 /* Renable HPD sensing */ 660 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2, 661 ADV7511_REG_POWER2_HPD_SRC_MASK, 662 ADV7511_REG_POWER2_HPD_SRC_BOTH); 663 } 664 665 adv7511->status = status; 666 return status; 667 } 668 669 static enum drm_mode_status adv7511_mode_valid(struct adv7511 *adv7511, 670 struct drm_display_mode *mode) 671 { 672 if (mode->clock > 165000) 673 return MODE_CLOCK_HIGH; 674 675 return MODE_OK; 676 } 677 678 static void adv7511_mode_set(struct adv7511 *adv7511, 679 const struct drm_display_mode *mode, 680 const struct drm_display_mode *adj_mode) 681 { 682 unsigned int low_refresh_rate; 683 unsigned int hsync_polarity = 0; 684 unsigned int vsync_polarity = 0; 685 686 if (adv7511->embedded_sync) { 687 unsigned int hsync_offset, hsync_len; 688 unsigned int vsync_offset, vsync_len; 689 690 hsync_offset = adj_mode->crtc_hsync_start - 691 adj_mode->crtc_hdisplay; 692 vsync_offset = adj_mode->crtc_vsync_start - 693 adj_mode->crtc_vdisplay; 694 hsync_len = adj_mode->crtc_hsync_end - 695 adj_mode->crtc_hsync_start; 696 vsync_len = adj_mode->crtc_vsync_end - 697 adj_mode->crtc_vsync_start; 698 699 /* The hardware vsync generator has a off-by-one bug */ 700 vsync_offset += 1; 701 702 regmap_write(adv7511->regmap, ADV7511_REG_HSYNC_PLACEMENT_MSB, 703 ((hsync_offset >> 10) & 0x7) << 5); 704 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(0), 705 (hsync_offset >> 2) & 0xff); 706 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(1), 707 ((hsync_offset & 0x3) << 6) | 708 ((hsync_len >> 4) & 0x3f)); 709 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(2), 710 ((hsync_len & 0xf) << 4) | 711 ((vsync_offset >> 6) & 0xf)); 712 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(3), 713 ((vsync_offset & 0x3f) << 2) | 714 ((vsync_len >> 8) & 0x3)); 715 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(4), 716 vsync_len & 0xff); 717 718 hsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PHSYNC); 719 vsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PVSYNC); 720 } else { 721 enum adv7511_sync_polarity mode_hsync_polarity; 722 enum adv7511_sync_polarity mode_vsync_polarity; 723 724 /** 725 * If the input signal is always low or always high we want to 726 * invert or let it passthrough depending on the polarity of the 727 * current mode. 728 **/ 729 if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC) 730 mode_hsync_polarity = ADV7511_SYNC_POLARITY_LOW; 731 else 732 mode_hsync_polarity = ADV7511_SYNC_POLARITY_HIGH; 733 734 if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC) 735 mode_vsync_polarity = ADV7511_SYNC_POLARITY_LOW; 736 else 737 mode_vsync_polarity = ADV7511_SYNC_POLARITY_HIGH; 738 739 if (adv7511->hsync_polarity != mode_hsync_polarity && 740 adv7511->hsync_polarity != 741 ADV7511_SYNC_POLARITY_PASSTHROUGH) 742 hsync_polarity = 1; 743 744 if (adv7511->vsync_polarity != mode_vsync_polarity && 745 adv7511->vsync_polarity != 746 ADV7511_SYNC_POLARITY_PASSTHROUGH) 747 vsync_polarity = 1; 748 } 749 750 if (drm_mode_vrefresh(mode) <= 24) 751 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_24HZ; 752 else if (drm_mode_vrefresh(mode) <= 25) 753 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_25HZ; 754 else if (drm_mode_vrefresh(mode) <= 30) 755 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_30HZ; 756 else 757 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE; 758 759 regmap_update_bits(adv7511->regmap, 0xfb, 760 0x6, low_refresh_rate << 1); 761 regmap_update_bits(adv7511->regmap, 0x17, 762 0x60, (vsync_polarity << 6) | (hsync_polarity << 5)); 763 764 if (adv7511->type == ADV7533 || adv7511->type == ADV7535) 765 adv7533_mode_set(adv7511, adj_mode); 766 767 drm_mode_copy(&adv7511->curr_mode, adj_mode); 768 769 /* 770 * TODO Test first order 4:2:2 to 4:4:4 up conversion method, which is 771 * supposed to give better results. 772 */ 773 774 adv7511->f_tmds = mode->clock; 775 } 776 777 /* Connector funcs */ 778 static struct adv7511 *connector_to_adv7511(struct drm_connector *connector) 779 { 780 return container_of(connector, struct adv7511, connector); 781 } 782 783 static int adv7511_connector_get_modes(struct drm_connector *connector) 784 { 785 struct adv7511 *adv = connector_to_adv7511(connector); 786 787 return adv7511_get_modes(adv, connector); 788 } 789 790 static enum drm_mode_status 791 adv7511_connector_mode_valid(struct drm_connector *connector, 792 struct drm_display_mode *mode) 793 { 794 struct adv7511 *adv = connector_to_adv7511(connector); 795 796 return adv7511_mode_valid(adv, mode); 797 } 798 799 static struct drm_connector_helper_funcs adv7511_connector_helper_funcs = { 800 .get_modes = adv7511_connector_get_modes, 801 .mode_valid = adv7511_connector_mode_valid, 802 }; 803 804 static enum drm_connector_status 805 adv7511_connector_detect(struct drm_connector *connector, bool force) 806 { 807 struct adv7511 *adv = connector_to_adv7511(connector); 808 809 return adv7511_detect(adv, connector); 810 } 811 812 static const struct drm_connector_funcs adv7511_connector_funcs = { 813 .fill_modes = drm_helper_probe_single_connector_modes, 814 .detect = adv7511_connector_detect, 815 .destroy = drm_connector_cleanup, 816 .reset = drm_atomic_helper_connector_reset, 817 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, 818 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 819 }; 820 821 /* Bridge funcs */ 822 static struct adv7511 *bridge_to_adv7511(struct drm_bridge *bridge) 823 { 824 return container_of(bridge, struct adv7511, bridge); 825 } 826 827 static void adv7511_bridge_enable(struct drm_bridge *bridge) 828 { 829 struct adv7511 *adv = bridge_to_adv7511(bridge); 830 831 adv7511_power_on(adv); 832 } 833 834 static void adv7511_bridge_disable(struct drm_bridge *bridge) 835 { 836 struct adv7511 *adv = bridge_to_adv7511(bridge); 837 838 adv7511_power_off(adv); 839 } 840 841 static void adv7511_bridge_mode_set(struct drm_bridge *bridge, 842 const struct drm_display_mode *mode, 843 const struct drm_display_mode *adj_mode) 844 { 845 struct adv7511 *adv = bridge_to_adv7511(bridge); 846 847 adv7511_mode_set(adv, mode, adj_mode); 848 } 849 850 static int adv7511_bridge_attach(struct drm_bridge *bridge, 851 enum drm_bridge_attach_flags flags) 852 { 853 struct adv7511 *adv = bridge_to_adv7511(bridge); 854 int ret; 855 856 if (flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR) { 857 DRM_ERROR("Fix bridge driver to make connector optional!"); 858 return -EINVAL; 859 } 860 861 if (!bridge->encoder) { 862 DRM_ERROR("Parent encoder object not found"); 863 return -ENODEV; 864 } 865 866 if (adv->i2c_main->irq) 867 adv->connector.polled = DRM_CONNECTOR_POLL_HPD; 868 else 869 adv->connector.polled = DRM_CONNECTOR_POLL_CONNECT | 870 DRM_CONNECTOR_POLL_DISCONNECT; 871 872 ret = drm_connector_init(bridge->dev, &adv->connector, 873 &adv7511_connector_funcs, 874 DRM_MODE_CONNECTOR_HDMIA); 875 if (ret) { 876 DRM_ERROR("Failed to initialize connector with drm\n"); 877 return ret; 878 } 879 drm_connector_helper_add(&adv->connector, 880 &adv7511_connector_helper_funcs); 881 drm_connector_attach_encoder(&adv->connector, bridge->encoder); 882 883 if (adv->type == ADV7533 || adv->type == ADV7535) 884 ret = adv7533_attach_dsi(adv); 885 886 if (adv->i2c_main->irq) 887 regmap_write(adv->regmap, ADV7511_REG_INT_ENABLE(0), 888 ADV7511_INT0_HPD); 889 890 return ret; 891 } 892 893 static const struct drm_bridge_funcs adv7511_bridge_funcs = { 894 .enable = adv7511_bridge_enable, 895 .disable = adv7511_bridge_disable, 896 .mode_set = adv7511_bridge_mode_set, 897 .attach = adv7511_bridge_attach, 898 }; 899 900 /* ----------------------------------------------------------------------------- 901 * Probe & remove 902 */ 903 904 static const char * const adv7511_supply_names[] = { 905 "avdd", 906 "dvdd", 907 "pvdd", 908 "bgvdd", 909 "dvdd-3v", 910 }; 911 912 static const char * const adv7533_supply_names[] = { 913 "avdd", 914 "dvdd", 915 "pvdd", 916 "a2vdd", 917 "v3p3", 918 "v1p2", 919 }; 920 921 static int adv7511_init_regulators(struct adv7511 *adv) 922 { 923 struct device *dev = &adv->i2c_main->dev; 924 const char * const *supply_names; 925 unsigned int i; 926 int ret; 927 928 if (adv->type == ADV7511) { 929 supply_names = adv7511_supply_names; 930 adv->num_supplies = ARRAY_SIZE(adv7511_supply_names); 931 } else { 932 supply_names = adv7533_supply_names; 933 adv->num_supplies = ARRAY_SIZE(adv7533_supply_names); 934 } 935 936 adv->supplies = devm_kcalloc(dev, adv->num_supplies, 937 sizeof(*adv->supplies), GFP_KERNEL); 938 if (!adv->supplies) 939 return -ENOMEM; 940 941 for (i = 0; i < adv->num_supplies; i++) 942 adv->supplies[i].supply = supply_names[i]; 943 944 ret = devm_regulator_bulk_get(dev, adv->num_supplies, adv->supplies); 945 if (ret) 946 return ret; 947 948 return regulator_bulk_enable(adv->num_supplies, adv->supplies); 949 } 950 951 static void adv7511_uninit_regulators(struct adv7511 *adv) 952 { 953 regulator_bulk_disable(adv->num_supplies, adv->supplies); 954 } 955 956 static bool adv7511_cec_register_volatile(struct device *dev, unsigned int reg) 957 { 958 struct i2c_client *i2c = to_i2c_client(dev); 959 struct adv7511 *adv7511 = i2c_get_clientdata(i2c); 960 961 if (adv7511->type == ADV7533 || adv7511->type == ADV7535) 962 reg -= ADV7533_REG_CEC_OFFSET; 963 964 switch (reg) { 965 case ADV7511_REG_CEC_RX_FRAME_HDR: 966 case ADV7511_REG_CEC_RX_FRAME_DATA0... 967 ADV7511_REG_CEC_RX_FRAME_DATA0 + 14: 968 case ADV7511_REG_CEC_RX_FRAME_LEN: 969 case ADV7511_REG_CEC_RX_BUFFERS: 970 case ADV7511_REG_CEC_TX_LOW_DRV_CNT: 971 return true; 972 } 973 974 return false; 975 } 976 977 static const struct regmap_config adv7511_cec_regmap_config = { 978 .reg_bits = 8, 979 .val_bits = 8, 980 981 .max_register = 0xff, 982 .cache_type = REGCACHE_RBTREE, 983 .volatile_reg = adv7511_cec_register_volatile, 984 }; 985 986 static int adv7511_init_cec_regmap(struct adv7511 *adv) 987 { 988 int ret; 989 990 adv->i2c_cec = i2c_new_ancillary_device(adv->i2c_main, "cec", 991 ADV7511_CEC_I2C_ADDR_DEFAULT); 992 if (IS_ERR(adv->i2c_cec)) 993 return PTR_ERR(adv->i2c_cec); 994 i2c_set_clientdata(adv->i2c_cec, adv); 995 996 adv->regmap_cec = devm_regmap_init_i2c(adv->i2c_cec, 997 &adv7511_cec_regmap_config); 998 if (IS_ERR(adv->regmap_cec)) { 999 ret = PTR_ERR(adv->regmap_cec); 1000 goto err; 1001 } 1002 1003 if (adv->type == ADV7533 || adv->type == ADV7535) { 1004 ret = adv7533_patch_cec_registers(adv); 1005 if (ret) 1006 goto err; 1007 } 1008 1009 return 0; 1010 err: 1011 i2c_unregister_device(adv->i2c_cec); 1012 return ret; 1013 } 1014 1015 static int adv7511_parse_dt(struct device_node *np, 1016 struct adv7511_link_config *config) 1017 { 1018 const char *str; 1019 int ret; 1020 1021 of_property_read_u32(np, "adi,input-depth", &config->input_color_depth); 1022 if (config->input_color_depth != 8 && config->input_color_depth != 10 && 1023 config->input_color_depth != 12) 1024 return -EINVAL; 1025 1026 ret = of_property_read_string(np, "adi,input-colorspace", &str); 1027 if (ret < 0) 1028 return ret; 1029 1030 if (!strcmp(str, "rgb")) 1031 config->input_colorspace = HDMI_COLORSPACE_RGB; 1032 else if (!strcmp(str, "yuv422")) 1033 config->input_colorspace = HDMI_COLORSPACE_YUV422; 1034 else if (!strcmp(str, "yuv444")) 1035 config->input_colorspace = HDMI_COLORSPACE_YUV444; 1036 else 1037 return -EINVAL; 1038 1039 ret = of_property_read_string(np, "adi,input-clock", &str); 1040 if (ret < 0) 1041 return ret; 1042 1043 if (!strcmp(str, "1x")) 1044 config->input_clock = ADV7511_INPUT_CLOCK_1X; 1045 else if (!strcmp(str, "2x")) 1046 config->input_clock = ADV7511_INPUT_CLOCK_2X; 1047 else if (!strcmp(str, "ddr")) 1048 config->input_clock = ADV7511_INPUT_CLOCK_DDR; 1049 else 1050 return -EINVAL; 1051 1052 if (config->input_colorspace == HDMI_COLORSPACE_YUV422 || 1053 config->input_clock != ADV7511_INPUT_CLOCK_1X) { 1054 ret = of_property_read_u32(np, "adi,input-style", 1055 &config->input_style); 1056 if (ret) 1057 return ret; 1058 1059 if (config->input_style < 1 || config->input_style > 3) 1060 return -EINVAL; 1061 1062 ret = of_property_read_string(np, "adi,input-justification", 1063 &str); 1064 if (ret < 0) 1065 return ret; 1066 1067 if (!strcmp(str, "left")) 1068 config->input_justification = 1069 ADV7511_INPUT_JUSTIFICATION_LEFT; 1070 else if (!strcmp(str, "evenly")) 1071 config->input_justification = 1072 ADV7511_INPUT_JUSTIFICATION_EVENLY; 1073 else if (!strcmp(str, "right")) 1074 config->input_justification = 1075 ADV7511_INPUT_JUSTIFICATION_RIGHT; 1076 else 1077 return -EINVAL; 1078 1079 } else { 1080 config->input_style = 1; 1081 config->input_justification = ADV7511_INPUT_JUSTIFICATION_LEFT; 1082 } 1083 1084 of_property_read_u32(np, "adi,clock-delay", &config->clock_delay); 1085 if (config->clock_delay < -1200 || config->clock_delay > 1600) 1086 return -EINVAL; 1087 1088 config->embedded_sync = of_property_read_bool(np, "adi,embedded-sync"); 1089 1090 /* Hardcode the sync pulse configurations for now. */ 1091 config->sync_pulse = ADV7511_INPUT_SYNC_PULSE_NONE; 1092 config->vsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH; 1093 config->hsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH; 1094 1095 return 0; 1096 } 1097 1098 static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id) 1099 { 1100 struct adv7511_link_config link_config; 1101 struct adv7511 *adv7511; 1102 struct device *dev = &i2c->dev; 1103 unsigned int val; 1104 int ret; 1105 1106 if (!dev->of_node) 1107 return -EINVAL; 1108 1109 adv7511 = devm_kzalloc(dev, sizeof(*adv7511), GFP_KERNEL); 1110 if (!adv7511) 1111 return -ENOMEM; 1112 1113 adv7511->i2c_main = i2c; 1114 adv7511->powered = false; 1115 adv7511->status = connector_status_disconnected; 1116 1117 if (dev->of_node) 1118 adv7511->type = (enum adv7511_type)of_device_get_match_data(dev); 1119 else 1120 adv7511->type = id->driver_data; 1121 1122 memset(&link_config, 0, sizeof(link_config)); 1123 1124 if (adv7511->type == ADV7511) 1125 ret = adv7511_parse_dt(dev->of_node, &link_config); 1126 else 1127 ret = adv7533_parse_dt(dev->of_node, adv7511); 1128 if (ret) 1129 return ret; 1130 1131 ret = adv7511_init_regulators(adv7511); 1132 if (ret) { 1133 dev_err(dev, "failed to init regulators\n"); 1134 return ret; 1135 } 1136 1137 /* 1138 * The power down GPIO is optional. If present, toggle it from active to 1139 * inactive to wake up the encoder. 1140 */ 1141 adv7511->gpio_pd = devm_gpiod_get_optional(dev, "pd", GPIOD_OUT_HIGH); 1142 if (IS_ERR(adv7511->gpio_pd)) { 1143 ret = PTR_ERR(adv7511->gpio_pd); 1144 goto uninit_regulators; 1145 } 1146 1147 if (adv7511->gpio_pd) { 1148 usleep_range(5000, 6000); 1149 gpiod_set_value_cansleep(adv7511->gpio_pd, 0); 1150 } 1151 1152 adv7511->regmap = devm_regmap_init_i2c(i2c, &adv7511_regmap_config); 1153 if (IS_ERR(adv7511->regmap)) { 1154 ret = PTR_ERR(adv7511->regmap); 1155 goto uninit_regulators; 1156 } 1157 1158 ret = regmap_read(adv7511->regmap, ADV7511_REG_CHIP_REVISION, &val); 1159 if (ret) 1160 goto uninit_regulators; 1161 dev_dbg(dev, "Rev. %d\n", val); 1162 1163 if (adv7511->type == ADV7511) 1164 ret = regmap_register_patch(adv7511->regmap, 1165 adv7511_fixed_registers, 1166 ARRAY_SIZE(adv7511_fixed_registers)); 1167 else 1168 ret = adv7533_patch_registers(adv7511); 1169 if (ret) 1170 goto uninit_regulators; 1171 1172 adv7511_packet_disable(adv7511, 0xffff); 1173 1174 adv7511->i2c_edid = i2c_new_ancillary_device(i2c, "edid", 1175 ADV7511_EDID_I2C_ADDR_DEFAULT); 1176 if (IS_ERR(adv7511->i2c_edid)) { 1177 ret = PTR_ERR(adv7511->i2c_edid); 1178 goto uninit_regulators; 1179 } 1180 1181 regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR, 1182 adv7511->i2c_edid->addr << 1); 1183 1184 adv7511->i2c_packet = i2c_new_ancillary_device(i2c, "packet", 1185 ADV7511_PACKET_I2C_ADDR_DEFAULT); 1186 if (IS_ERR(adv7511->i2c_packet)) { 1187 ret = PTR_ERR(adv7511->i2c_packet); 1188 goto err_i2c_unregister_edid; 1189 } 1190 1191 regmap_write(adv7511->regmap, ADV7511_REG_PACKET_I2C_ADDR, 1192 adv7511->i2c_packet->addr << 1); 1193 1194 ret = adv7511_init_cec_regmap(adv7511); 1195 if (ret) 1196 goto err_i2c_unregister_packet; 1197 1198 regmap_write(adv7511->regmap, ADV7511_REG_CEC_I2C_ADDR, 1199 adv7511->i2c_cec->addr << 1); 1200 1201 INIT_WORK(&adv7511->hpd_work, adv7511_hpd_work); 1202 1203 if (i2c->irq) { 1204 init_waitqueue_head(&adv7511->wq); 1205 1206 ret = devm_request_threaded_irq(dev, i2c->irq, NULL, 1207 adv7511_irq_handler, 1208 IRQF_ONESHOT, dev_name(dev), 1209 adv7511); 1210 if (ret) 1211 goto err_unregister_cec; 1212 } 1213 1214 adv7511_power_off(adv7511); 1215 1216 i2c_set_clientdata(i2c, adv7511); 1217 1218 if (adv7511->type == ADV7511) 1219 adv7511_set_link_config(adv7511, &link_config); 1220 1221 ret = adv7511_cec_init(dev, adv7511); 1222 if (ret) 1223 goto err_unregister_cec; 1224 1225 adv7511->bridge.funcs = &adv7511_bridge_funcs; 1226 adv7511->bridge.of_node = dev->of_node; 1227 1228 drm_bridge_add(&adv7511->bridge); 1229 1230 adv7511_audio_init(dev, adv7511); 1231 return 0; 1232 1233 err_unregister_cec: 1234 i2c_unregister_device(adv7511->i2c_cec); 1235 if (adv7511->cec_clk) 1236 clk_disable_unprepare(adv7511->cec_clk); 1237 err_i2c_unregister_packet: 1238 i2c_unregister_device(adv7511->i2c_packet); 1239 err_i2c_unregister_edid: 1240 i2c_unregister_device(adv7511->i2c_edid); 1241 uninit_regulators: 1242 adv7511_uninit_regulators(adv7511); 1243 1244 return ret; 1245 } 1246 1247 static int adv7511_remove(struct i2c_client *i2c) 1248 { 1249 struct adv7511 *adv7511 = i2c_get_clientdata(i2c); 1250 1251 if (adv7511->type == ADV7533 || adv7511->type == ADV7535) 1252 adv7533_detach_dsi(adv7511); 1253 i2c_unregister_device(adv7511->i2c_cec); 1254 if (adv7511->cec_clk) 1255 clk_disable_unprepare(adv7511->cec_clk); 1256 1257 adv7511_uninit_regulators(adv7511); 1258 1259 drm_bridge_remove(&adv7511->bridge); 1260 1261 adv7511_audio_exit(adv7511); 1262 1263 cec_unregister_adapter(adv7511->cec_adap); 1264 1265 i2c_unregister_device(adv7511->i2c_packet); 1266 i2c_unregister_device(adv7511->i2c_edid); 1267 1268 return 0; 1269 } 1270 1271 static const struct i2c_device_id adv7511_i2c_ids[] = { 1272 { "adv7511", ADV7511 }, 1273 { "adv7511w", ADV7511 }, 1274 { "adv7513", ADV7511 }, 1275 { "adv7533", ADV7533 }, 1276 { "adv7535", ADV7535 }, 1277 { } 1278 }; 1279 MODULE_DEVICE_TABLE(i2c, adv7511_i2c_ids); 1280 1281 static const struct of_device_id adv7511_of_ids[] = { 1282 { .compatible = "adi,adv7511", .data = (void *)ADV7511 }, 1283 { .compatible = "adi,adv7511w", .data = (void *)ADV7511 }, 1284 { .compatible = "adi,adv7513", .data = (void *)ADV7511 }, 1285 { .compatible = "adi,adv7533", .data = (void *)ADV7533 }, 1286 { .compatible = "adi,adv7535", .data = (void *)ADV7535 }, 1287 { } 1288 }; 1289 MODULE_DEVICE_TABLE(of, adv7511_of_ids); 1290 1291 static struct mipi_dsi_driver adv7533_dsi_driver = { 1292 .driver.name = "adv7533", 1293 }; 1294 1295 static struct i2c_driver adv7511_driver = { 1296 .driver = { 1297 .name = "adv7511", 1298 .of_match_table = adv7511_of_ids, 1299 }, 1300 .id_table = adv7511_i2c_ids, 1301 .probe = adv7511_probe, 1302 .remove = adv7511_remove, 1303 }; 1304 1305 static int __init adv7511_init(void) 1306 { 1307 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) 1308 mipi_dsi_driver_register(&adv7533_dsi_driver); 1309 1310 return i2c_add_driver(&adv7511_driver); 1311 } 1312 module_init(adv7511_init); 1313 1314 static void __exit adv7511_exit(void) 1315 { 1316 i2c_del_driver(&adv7511_driver); 1317 1318 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) 1319 mipi_dsi_driver_unregister(&adv7533_dsi_driver); 1320 } 1321 module_exit(adv7511_exit); 1322 1323 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); 1324 MODULE_DESCRIPTION("ADV7511 HDMI transmitter driver"); 1325 MODULE_LICENSE("GPL"); 1326