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; 446 447 if (adv7511->connector.dev) { 448 if (status == connector_status_disconnected) 449 cec_phys_addr_invalidate(adv7511->cec_adap); 450 drm_kms_helper_hotplug_event(adv7511->connector.dev); 451 } else { 452 drm_bridge_hpd_notify(&adv7511->bridge, status); 453 } 454 } 455 } 456 457 static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd) 458 { 459 unsigned int irq0, irq1; 460 int ret; 461 462 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0); 463 if (ret < 0) 464 return ret; 465 466 ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(1), &irq1); 467 if (ret < 0) 468 return ret; 469 470 regmap_write(adv7511->regmap, ADV7511_REG_INT(0), irq0); 471 regmap_write(adv7511->regmap, ADV7511_REG_INT(1), irq1); 472 473 if (process_hpd && irq0 & ADV7511_INT0_HPD && adv7511->bridge.encoder) 474 schedule_work(&adv7511->hpd_work); 475 476 if (irq0 & ADV7511_INT0_EDID_READY || irq1 & ADV7511_INT1_DDC_ERROR) { 477 adv7511->edid_read = true; 478 479 if (adv7511->i2c_main->irq) 480 wake_up_all(&adv7511->wq); 481 } 482 483 #ifdef CONFIG_DRM_I2C_ADV7511_CEC 484 adv7511_cec_irq_process(adv7511, irq1); 485 #endif 486 487 return 0; 488 } 489 490 static irqreturn_t adv7511_irq_handler(int irq, void *devid) 491 { 492 struct adv7511 *adv7511 = devid; 493 int ret; 494 495 ret = adv7511_irq_process(adv7511, true); 496 return ret < 0 ? IRQ_NONE : IRQ_HANDLED; 497 } 498 499 /* ----------------------------------------------------------------------------- 500 * EDID retrieval 501 */ 502 503 static int adv7511_wait_for_edid(struct adv7511 *adv7511, int timeout) 504 { 505 int ret; 506 507 if (adv7511->i2c_main->irq) { 508 ret = wait_event_interruptible_timeout(adv7511->wq, 509 adv7511->edid_read, msecs_to_jiffies(timeout)); 510 } else { 511 for (; timeout > 0; timeout -= 25) { 512 ret = adv7511_irq_process(adv7511, false); 513 if (ret < 0) 514 break; 515 516 if (adv7511->edid_read) 517 break; 518 519 msleep(25); 520 } 521 } 522 523 return adv7511->edid_read ? 0 : -EIO; 524 } 525 526 static int adv7511_get_edid_block(void *data, u8 *buf, unsigned int block, 527 size_t len) 528 { 529 struct adv7511 *adv7511 = data; 530 struct i2c_msg xfer[2]; 531 uint8_t offset; 532 unsigned int i; 533 int ret; 534 535 if (len > 128) 536 return -EINVAL; 537 538 if (adv7511->current_edid_segment != block / 2) { 539 unsigned int status; 540 541 ret = regmap_read(adv7511->regmap, ADV7511_REG_DDC_STATUS, 542 &status); 543 if (ret < 0) 544 return ret; 545 546 if (status != 2) { 547 adv7511->edid_read = false; 548 regmap_write(adv7511->regmap, ADV7511_REG_EDID_SEGMENT, 549 block); 550 ret = adv7511_wait_for_edid(adv7511, 200); 551 if (ret < 0) 552 return ret; 553 } 554 555 /* Break this apart, hopefully more I2C controllers will 556 * support 64 byte transfers than 256 byte transfers 557 */ 558 559 xfer[0].addr = adv7511->i2c_edid->addr; 560 xfer[0].flags = 0; 561 xfer[0].len = 1; 562 xfer[0].buf = &offset; 563 xfer[1].addr = adv7511->i2c_edid->addr; 564 xfer[1].flags = I2C_M_RD; 565 xfer[1].len = 64; 566 xfer[1].buf = adv7511->edid_buf; 567 568 offset = 0; 569 570 for (i = 0; i < 4; ++i) { 571 ret = i2c_transfer(adv7511->i2c_edid->adapter, xfer, 572 ARRAY_SIZE(xfer)); 573 if (ret < 0) 574 return ret; 575 else if (ret != 2) 576 return -EIO; 577 578 xfer[1].buf += 64; 579 offset += 64; 580 } 581 582 adv7511->current_edid_segment = block / 2; 583 } 584 585 if (block % 2 == 0) 586 memcpy(buf, adv7511->edid_buf, len); 587 else 588 memcpy(buf, adv7511->edid_buf + 128, len); 589 590 return 0; 591 } 592 593 /* ----------------------------------------------------------------------------- 594 * ADV75xx helpers 595 */ 596 597 static struct edid *adv7511_get_edid(struct adv7511 *adv7511, 598 struct drm_connector *connector) 599 { 600 struct edid *edid; 601 602 /* Reading the EDID only works if the device is powered */ 603 if (!adv7511->powered) { 604 unsigned int edid_i2c_addr = 605 (adv7511->i2c_edid->addr << 1); 606 607 __adv7511_power_on(adv7511); 608 609 /* Reset the EDID_I2C_ADDR register as it might be cleared */ 610 regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR, 611 edid_i2c_addr); 612 } 613 614 edid = drm_do_get_edid(connector, adv7511_get_edid_block, adv7511); 615 616 if (!adv7511->powered) 617 __adv7511_power_off(adv7511); 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 return edid; 625 } 626 627 static int adv7511_get_modes(struct adv7511 *adv7511, 628 struct drm_connector *connector) 629 { 630 struct edid *edid; 631 unsigned int count; 632 633 edid = adv7511_get_edid(adv7511, connector); 634 635 drm_connector_update_edid_property(connector, edid); 636 count = drm_add_edid_modes(connector, edid); 637 638 kfree(edid); 639 640 return count; 641 } 642 643 static enum drm_connector_status 644 adv7511_detect(struct adv7511 *adv7511, struct drm_connector *connector) 645 { 646 enum drm_connector_status status; 647 unsigned int val; 648 bool hpd; 649 int ret; 650 651 ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val); 652 if (ret < 0) 653 return connector_status_disconnected; 654 655 if (val & ADV7511_STATUS_HPD) 656 status = connector_status_connected; 657 else 658 status = connector_status_disconnected; 659 660 hpd = adv7511_hpd(adv7511); 661 662 /* The chip resets itself when the cable is disconnected, so in case 663 * there is a pending HPD interrupt and the cable is connected there was 664 * at least one transition from disconnected to connected and the chip 665 * has to be reinitialized. */ 666 if (status == connector_status_connected && hpd && adv7511->powered) { 667 regcache_mark_dirty(adv7511->regmap); 668 adv7511_power_on(adv7511); 669 if (connector) 670 adv7511_get_modes(adv7511, connector); 671 if (adv7511->status == connector_status_connected) 672 status = connector_status_disconnected; 673 } else { 674 /* Renable HPD sensing */ 675 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2, 676 ADV7511_REG_POWER2_HPD_SRC_MASK, 677 ADV7511_REG_POWER2_HPD_SRC_BOTH); 678 } 679 680 adv7511->status = status; 681 return status; 682 } 683 684 static enum drm_mode_status adv7511_mode_valid(struct adv7511 *adv7511, 685 struct drm_display_mode *mode) 686 { 687 if (mode->clock > 165000) 688 return MODE_CLOCK_HIGH; 689 690 return MODE_OK; 691 } 692 693 static void adv7511_mode_set(struct adv7511 *adv7511, 694 const struct drm_display_mode *mode, 695 const struct drm_display_mode *adj_mode) 696 { 697 unsigned int low_refresh_rate; 698 unsigned int hsync_polarity = 0; 699 unsigned int vsync_polarity = 0; 700 701 if (adv7511->embedded_sync) { 702 unsigned int hsync_offset, hsync_len; 703 unsigned int vsync_offset, vsync_len; 704 705 hsync_offset = adj_mode->crtc_hsync_start - 706 adj_mode->crtc_hdisplay; 707 vsync_offset = adj_mode->crtc_vsync_start - 708 adj_mode->crtc_vdisplay; 709 hsync_len = adj_mode->crtc_hsync_end - 710 adj_mode->crtc_hsync_start; 711 vsync_len = adj_mode->crtc_vsync_end - 712 adj_mode->crtc_vsync_start; 713 714 /* The hardware vsync generator has a off-by-one bug */ 715 vsync_offset += 1; 716 717 regmap_write(adv7511->regmap, ADV7511_REG_HSYNC_PLACEMENT_MSB, 718 ((hsync_offset >> 10) & 0x7) << 5); 719 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(0), 720 (hsync_offset >> 2) & 0xff); 721 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(1), 722 ((hsync_offset & 0x3) << 6) | 723 ((hsync_len >> 4) & 0x3f)); 724 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(2), 725 ((hsync_len & 0xf) << 4) | 726 ((vsync_offset >> 6) & 0xf)); 727 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(3), 728 ((vsync_offset & 0x3f) << 2) | 729 ((vsync_len >> 8) & 0x3)); 730 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(4), 731 vsync_len & 0xff); 732 733 hsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PHSYNC); 734 vsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PVSYNC); 735 } else { 736 enum adv7511_sync_polarity mode_hsync_polarity; 737 enum adv7511_sync_polarity mode_vsync_polarity; 738 739 /** 740 * If the input signal is always low or always high we want to 741 * invert or let it passthrough depending on the polarity of the 742 * current mode. 743 **/ 744 if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC) 745 mode_hsync_polarity = ADV7511_SYNC_POLARITY_LOW; 746 else 747 mode_hsync_polarity = ADV7511_SYNC_POLARITY_HIGH; 748 749 if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC) 750 mode_vsync_polarity = ADV7511_SYNC_POLARITY_LOW; 751 else 752 mode_vsync_polarity = ADV7511_SYNC_POLARITY_HIGH; 753 754 if (adv7511->hsync_polarity != mode_hsync_polarity && 755 adv7511->hsync_polarity != 756 ADV7511_SYNC_POLARITY_PASSTHROUGH) 757 hsync_polarity = 1; 758 759 if (adv7511->vsync_polarity != mode_vsync_polarity && 760 adv7511->vsync_polarity != 761 ADV7511_SYNC_POLARITY_PASSTHROUGH) 762 vsync_polarity = 1; 763 } 764 765 if (drm_mode_vrefresh(mode) <= 24) 766 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_24HZ; 767 else if (drm_mode_vrefresh(mode) <= 25) 768 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_25HZ; 769 else if (drm_mode_vrefresh(mode) <= 30) 770 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_30HZ; 771 else 772 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE; 773 774 regmap_update_bits(adv7511->regmap, 0xfb, 775 0x6, low_refresh_rate << 1); 776 regmap_update_bits(adv7511->regmap, 0x17, 777 0x60, (vsync_polarity << 6) | (hsync_polarity << 5)); 778 779 if (adv7511->type == ADV7533 || adv7511->type == ADV7535) 780 adv7533_mode_set(adv7511, adj_mode); 781 782 drm_mode_copy(&adv7511->curr_mode, adj_mode); 783 784 /* 785 * TODO Test first order 4:2:2 to 4:4:4 up conversion method, which is 786 * supposed to give better results. 787 */ 788 789 adv7511->f_tmds = mode->clock; 790 } 791 792 /* ----------------------------------------------------------------------------- 793 * DRM Connector Operations 794 */ 795 796 static struct adv7511 *connector_to_adv7511(struct drm_connector *connector) 797 { 798 return container_of(connector, struct adv7511, connector); 799 } 800 801 static int adv7511_connector_get_modes(struct drm_connector *connector) 802 { 803 struct adv7511 *adv = connector_to_adv7511(connector); 804 805 return adv7511_get_modes(adv, connector); 806 } 807 808 static enum drm_mode_status 809 adv7511_connector_mode_valid(struct drm_connector *connector, 810 struct drm_display_mode *mode) 811 { 812 struct adv7511 *adv = connector_to_adv7511(connector); 813 814 return adv7511_mode_valid(adv, mode); 815 } 816 817 static struct drm_connector_helper_funcs adv7511_connector_helper_funcs = { 818 .get_modes = adv7511_connector_get_modes, 819 .mode_valid = adv7511_connector_mode_valid, 820 }; 821 822 static enum drm_connector_status 823 adv7511_connector_detect(struct drm_connector *connector, bool force) 824 { 825 struct adv7511 *adv = connector_to_adv7511(connector); 826 827 return adv7511_detect(adv, connector); 828 } 829 830 static const struct drm_connector_funcs adv7511_connector_funcs = { 831 .fill_modes = drm_helper_probe_single_connector_modes, 832 .detect = adv7511_connector_detect, 833 .destroy = drm_connector_cleanup, 834 .reset = drm_atomic_helper_connector_reset, 835 .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state, 836 .atomic_destroy_state = drm_atomic_helper_connector_destroy_state, 837 }; 838 839 static int adv7511_connector_init(struct adv7511 *adv) 840 { 841 struct drm_bridge *bridge = &adv->bridge; 842 int ret; 843 844 if (!bridge->encoder) { 845 DRM_ERROR("Parent encoder object not found"); 846 return -ENODEV; 847 } 848 849 if (adv->i2c_main->irq) 850 adv->connector.polled = DRM_CONNECTOR_POLL_HPD; 851 else 852 adv->connector.polled = DRM_CONNECTOR_POLL_CONNECT | 853 DRM_CONNECTOR_POLL_DISCONNECT; 854 855 ret = drm_connector_init(bridge->dev, &adv->connector, 856 &adv7511_connector_funcs, 857 DRM_MODE_CONNECTOR_HDMIA); 858 if (ret < 0) { 859 DRM_ERROR("Failed to initialize connector with drm\n"); 860 return ret; 861 } 862 drm_connector_helper_add(&adv->connector, 863 &adv7511_connector_helper_funcs); 864 drm_connector_attach_encoder(&adv->connector, bridge->encoder); 865 866 return 0; 867 } 868 869 /* ----------------------------------------------------------------------------- 870 * DRM Bridge Operations 871 */ 872 873 static struct adv7511 *bridge_to_adv7511(struct drm_bridge *bridge) 874 { 875 return container_of(bridge, struct adv7511, bridge); 876 } 877 878 static void adv7511_bridge_enable(struct drm_bridge *bridge) 879 { 880 struct adv7511 *adv = bridge_to_adv7511(bridge); 881 882 adv7511_power_on(adv); 883 } 884 885 static void adv7511_bridge_disable(struct drm_bridge *bridge) 886 { 887 struct adv7511 *adv = bridge_to_adv7511(bridge); 888 889 adv7511_power_off(adv); 890 } 891 892 static void adv7511_bridge_mode_set(struct drm_bridge *bridge, 893 const struct drm_display_mode *mode, 894 const struct drm_display_mode *adj_mode) 895 { 896 struct adv7511 *adv = bridge_to_adv7511(bridge); 897 898 adv7511_mode_set(adv, mode, adj_mode); 899 } 900 901 static int adv7511_bridge_attach(struct drm_bridge *bridge, 902 enum drm_bridge_attach_flags flags) 903 { 904 struct adv7511 *adv = bridge_to_adv7511(bridge); 905 int ret = 0; 906 907 if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR)) { 908 ret = adv7511_connector_init(adv); 909 if (ret < 0) 910 return ret; 911 } 912 913 if (adv->i2c_main->irq) 914 regmap_write(adv->regmap, ADV7511_REG_INT_ENABLE(0), 915 ADV7511_INT0_HPD); 916 917 return ret; 918 } 919 920 static enum drm_connector_status adv7511_bridge_detect(struct drm_bridge *bridge) 921 { 922 struct adv7511 *adv = bridge_to_adv7511(bridge); 923 924 return adv7511_detect(adv, NULL); 925 } 926 927 static struct edid *adv7511_bridge_get_edid(struct drm_bridge *bridge, 928 struct drm_connector *connector) 929 { 930 struct adv7511 *adv = bridge_to_adv7511(bridge); 931 932 return adv7511_get_edid(adv, connector); 933 } 934 935 static void adv7511_bridge_hpd_notify(struct drm_bridge *bridge, 936 enum drm_connector_status status) 937 { 938 struct adv7511 *adv = bridge_to_adv7511(bridge); 939 940 if (status == connector_status_disconnected) 941 cec_phys_addr_invalidate(adv->cec_adap); 942 } 943 944 static const struct drm_bridge_funcs adv7511_bridge_funcs = { 945 .enable = adv7511_bridge_enable, 946 .disable = adv7511_bridge_disable, 947 .mode_set = adv7511_bridge_mode_set, 948 .attach = adv7511_bridge_attach, 949 .detect = adv7511_bridge_detect, 950 .get_edid = adv7511_bridge_get_edid, 951 .hpd_notify = adv7511_bridge_hpd_notify, 952 }; 953 954 /* ----------------------------------------------------------------------------- 955 * Probe & remove 956 */ 957 958 static const char * const adv7511_supply_names[] = { 959 "avdd", 960 "dvdd", 961 "pvdd", 962 "bgvdd", 963 "dvdd-3v", 964 }; 965 966 static const char * const adv7533_supply_names[] = { 967 "avdd", 968 "dvdd", 969 "pvdd", 970 "a2vdd", 971 "v3p3", 972 "v1p2", 973 }; 974 975 static int adv7511_init_regulators(struct adv7511 *adv) 976 { 977 struct device *dev = &adv->i2c_main->dev; 978 const char * const *supply_names; 979 unsigned int i; 980 int ret; 981 982 if (adv->type == ADV7511) { 983 supply_names = adv7511_supply_names; 984 adv->num_supplies = ARRAY_SIZE(adv7511_supply_names); 985 } else { 986 supply_names = adv7533_supply_names; 987 adv->num_supplies = ARRAY_SIZE(adv7533_supply_names); 988 } 989 990 adv->supplies = devm_kcalloc(dev, adv->num_supplies, 991 sizeof(*adv->supplies), GFP_KERNEL); 992 if (!adv->supplies) 993 return -ENOMEM; 994 995 for (i = 0; i < adv->num_supplies; i++) 996 adv->supplies[i].supply = supply_names[i]; 997 998 ret = devm_regulator_bulk_get(dev, adv->num_supplies, adv->supplies); 999 if (ret) 1000 return ret; 1001 1002 return regulator_bulk_enable(adv->num_supplies, adv->supplies); 1003 } 1004 1005 static void adv7511_uninit_regulators(struct adv7511 *adv) 1006 { 1007 regulator_bulk_disable(adv->num_supplies, adv->supplies); 1008 } 1009 1010 static bool adv7511_cec_register_volatile(struct device *dev, unsigned int reg) 1011 { 1012 struct i2c_client *i2c = to_i2c_client(dev); 1013 struct adv7511 *adv7511 = i2c_get_clientdata(i2c); 1014 1015 if (adv7511->type == ADV7533 || adv7511->type == ADV7535) 1016 reg -= ADV7533_REG_CEC_OFFSET; 1017 1018 switch (reg) { 1019 case ADV7511_REG_CEC_RX_FRAME_HDR: 1020 case ADV7511_REG_CEC_RX_FRAME_DATA0... 1021 ADV7511_REG_CEC_RX_FRAME_DATA0 + 14: 1022 case ADV7511_REG_CEC_RX_FRAME_LEN: 1023 case ADV7511_REG_CEC_RX_BUFFERS: 1024 case ADV7511_REG_CEC_TX_LOW_DRV_CNT: 1025 return true; 1026 } 1027 1028 return false; 1029 } 1030 1031 static const struct regmap_config adv7511_cec_regmap_config = { 1032 .reg_bits = 8, 1033 .val_bits = 8, 1034 1035 .max_register = 0xff, 1036 .cache_type = REGCACHE_RBTREE, 1037 .volatile_reg = adv7511_cec_register_volatile, 1038 }; 1039 1040 static int adv7511_init_cec_regmap(struct adv7511 *adv) 1041 { 1042 int ret; 1043 1044 adv->i2c_cec = i2c_new_ancillary_device(adv->i2c_main, "cec", 1045 ADV7511_CEC_I2C_ADDR_DEFAULT); 1046 if (IS_ERR(adv->i2c_cec)) 1047 return PTR_ERR(adv->i2c_cec); 1048 i2c_set_clientdata(adv->i2c_cec, adv); 1049 1050 adv->regmap_cec = devm_regmap_init_i2c(adv->i2c_cec, 1051 &adv7511_cec_regmap_config); 1052 if (IS_ERR(adv->regmap_cec)) { 1053 ret = PTR_ERR(adv->regmap_cec); 1054 goto err; 1055 } 1056 1057 if (adv->type == ADV7533 || adv->type == ADV7535) { 1058 ret = adv7533_patch_cec_registers(adv); 1059 if (ret) 1060 goto err; 1061 } 1062 1063 return 0; 1064 err: 1065 i2c_unregister_device(adv->i2c_cec); 1066 return ret; 1067 } 1068 1069 static int adv7511_parse_dt(struct device_node *np, 1070 struct adv7511_link_config *config) 1071 { 1072 const char *str; 1073 int ret; 1074 1075 of_property_read_u32(np, "adi,input-depth", &config->input_color_depth); 1076 if (config->input_color_depth != 8 && config->input_color_depth != 10 && 1077 config->input_color_depth != 12) 1078 return -EINVAL; 1079 1080 ret = of_property_read_string(np, "adi,input-colorspace", &str); 1081 if (ret < 0) 1082 return ret; 1083 1084 if (!strcmp(str, "rgb")) 1085 config->input_colorspace = HDMI_COLORSPACE_RGB; 1086 else if (!strcmp(str, "yuv422")) 1087 config->input_colorspace = HDMI_COLORSPACE_YUV422; 1088 else if (!strcmp(str, "yuv444")) 1089 config->input_colorspace = HDMI_COLORSPACE_YUV444; 1090 else 1091 return -EINVAL; 1092 1093 ret = of_property_read_string(np, "adi,input-clock", &str); 1094 if (ret < 0) 1095 return ret; 1096 1097 if (!strcmp(str, "1x")) 1098 config->input_clock = ADV7511_INPUT_CLOCK_1X; 1099 else if (!strcmp(str, "2x")) 1100 config->input_clock = ADV7511_INPUT_CLOCK_2X; 1101 else if (!strcmp(str, "ddr")) 1102 config->input_clock = ADV7511_INPUT_CLOCK_DDR; 1103 else 1104 return -EINVAL; 1105 1106 if (config->input_colorspace == HDMI_COLORSPACE_YUV422 || 1107 config->input_clock != ADV7511_INPUT_CLOCK_1X) { 1108 ret = of_property_read_u32(np, "adi,input-style", 1109 &config->input_style); 1110 if (ret) 1111 return ret; 1112 1113 if (config->input_style < 1 || config->input_style > 3) 1114 return -EINVAL; 1115 1116 ret = of_property_read_string(np, "adi,input-justification", 1117 &str); 1118 if (ret < 0) 1119 return ret; 1120 1121 if (!strcmp(str, "left")) 1122 config->input_justification = 1123 ADV7511_INPUT_JUSTIFICATION_LEFT; 1124 else if (!strcmp(str, "evenly")) 1125 config->input_justification = 1126 ADV7511_INPUT_JUSTIFICATION_EVENLY; 1127 else if (!strcmp(str, "right")) 1128 config->input_justification = 1129 ADV7511_INPUT_JUSTIFICATION_RIGHT; 1130 else 1131 return -EINVAL; 1132 1133 } else { 1134 config->input_style = 1; 1135 config->input_justification = ADV7511_INPUT_JUSTIFICATION_LEFT; 1136 } 1137 1138 of_property_read_u32(np, "adi,clock-delay", &config->clock_delay); 1139 if (config->clock_delay < -1200 || config->clock_delay > 1600) 1140 return -EINVAL; 1141 1142 config->embedded_sync = of_property_read_bool(np, "adi,embedded-sync"); 1143 1144 /* Hardcode the sync pulse configurations for now. */ 1145 config->sync_pulse = ADV7511_INPUT_SYNC_PULSE_NONE; 1146 config->vsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH; 1147 config->hsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH; 1148 1149 return 0; 1150 } 1151 1152 static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id) 1153 { 1154 struct adv7511_link_config link_config; 1155 struct adv7511 *adv7511; 1156 struct device *dev = &i2c->dev; 1157 unsigned int val; 1158 int ret; 1159 1160 if (!dev->of_node) 1161 return -EINVAL; 1162 1163 adv7511 = devm_kzalloc(dev, sizeof(*adv7511), GFP_KERNEL); 1164 if (!adv7511) 1165 return -ENOMEM; 1166 1167 adv7511->i2c_main = i2c; 1168 adv7511->powered = false; 1169 adv7511->status = connector_status_disconnected; 1170 1171 if (dev->of_node) 1172 adv7511->type = (enum adv7511_type)of_device_get_match_data(dev); 1173 else 1174 adv7511->type = id->driver_data; 1175 1176 memset(&link_config, 0, sizeof(link_config)); 1177 1178 if (adv7511->type == ADV7511) 1179 ret = adv7511_parse_dt(dev->of_node, &link_config); 1180 else 1181 ret = adv7533_parse_dt(dev->of_node, adv7511); 1182 if (ret) 1183 return ret; 1184 1185 ret = adv7511_init_regulators(adv7511); 1186 if (ret) { 1187 dev_err(dev, "failed to init regulators\n"); 1188 return ret; 1189 } 1190 1191 /* 1192 * The power down GPIO is optional. If present, toggle it from active to 1193 * inactive to wake up the encoder. 1194 */ 1195 adv7511->gpio_pd = devm_gpiod_get_optional(dev, "pd", GPIOD_OUT_HIGH); 1196 if (IS_ERR(adv7511->gpio_pd)) { 1197 ret = PTR_ERR(adv7511->gpio_pd); 1198 goto uninit_regulators; 1199 } 1200 1201 if (adv7511->gpio_pd) { 1202 usleep_range(5000, 6000); 1203 gpiod_set_value_cansleep(adv7511->gpio_pd, 0); 1204 } 1205 1206 adv7511->regmap = devm_regmap_init_i2c(i2c, &adv7511_regmap_config); 1207 if (IS_ERR(adv7511->regmap)) { 1208 ret = PTR_ERR(adv7511->regmap); 1209 goto uninit_regulators; 1210 } 1211 1212 ret = regmap_read(adv7511->regmap, ADV7511_REG_CHIP_REVISION, &val); 1213 if (ret) 1214 goto uninit_regulators; 1215 dev_dbg(dev, "Rev. %d\n", val); 1216 1217 if (adv7511->type == ADV7511) 1218 ret = regmap_register_patch(adv7511->regmap, 1219 adv7511_fixed_registers, 1220 ARRAY_SIZE(adv7511_fixed_registers)); 1221 else 1222 ret = adv7533_patch_registers(adv7511); 1223 if (ret) 1224 goto uninit_regulators; 1225 1226 adv7511_packet_disable(adv7511, 0xffff); 1227 1228 adv7511->i2c_edid = i2c_new_ancillary_device(i2c, "edid", 1229 ADV7511_EDID_I2C_ADDR_DEFAULT); 1230 if (IS_ERR(adv7511->i2c_edid)) { 1231 ret = PTR_ERR(adv7511->i2c_edid); 1232 goto uninit_regulators; 1233 } 1234 1235 regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR, 1236 adv7511->i2c_edid->addr << 1); 1237 1238 adv7511->i2c_packet = i2c_new_ancillary_device(i2c, "packet", 1239 ADV7511_PACKET_I2C_ADDR_DEFAULT); 1240 if (IS_ERR(adv7511->i2c_packet)) { 1241 ret = PTR_ERR(adv7511->i2c_packet); 1242 goto err_i2c_unregister_edid; 1243 } 1244 1245 regmap_write(adv7511->regmap, ADV7511_REG_PACKET_I2C_ADDR, 1246 adv7511->i2c_packet->addr << 1); 1247 1248 ret = adv7511_init_cec_regmap(adv7511); 1249 if (ret) 1250 goto err_i2c_unregister_packet; 1251 1252 regmap_write(adv7511->regmap, ADV7511_REG_CEC_I2C_ADDR, 1253 adv7511->i2c_cec->addr << 1); 1254 1255 INIT_WORK(&adv7511->hpd_work, adv7511_hpd_work); 1256 1257 if (i2c->irq) { 1258 init_waitqueue_head(&adv7511->wq); 1259 1260 ret = devm_request_threaded_irq(dev, i2c->irq, NULL, 1261 adv7511_irq_handler, 1262 IRQF_ONESHOT, dev_name(dev), 1263 adv7511); 1264 if (ret) 1265 goto err_unregister_cec; 1266 } 1267 1268 adv7511_power_off(adv7511); 1269 1270 i2c_set_clientdata(i2c, adv7511); 1271 1272 if (adv7511->type == ADV7511) 1273 adv7511_set_link_config(adv7511, &link_config); 1274 1275 ret = adv7511_cec_init(dev, adv7511); 1276 if (ret) 1277 goto err_unregister_cec; 1278 1279 adv7511->bridge.funcs = &adv7511_bridge_funcs; 1280 adv7511->bridge.ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID 1281 | DRM_BRIDGE_OP_HPD; 1282 adv7511->bridge.of_node = dev->of_node; 1283 adv7511->bridge.type = DRM_MODE_CONNECTOR_HDMIA; 1284 1285 drm_bridge_add(&adv7511->bridge); 1286 1287 adv7511_audio_init(dev, adv7511); 1288 1289 if (adv7511->type == ADV7533 || adv7511->type == ADV7535) { 1290 ret = adv7533_attach_dsi(adv7511); 1291 if (ret) 1292 goto err_unregister_audio; 1293 } 1294 1295 return 0; 1296 1297 err_unregister_audio: 1298 adv7511_audio_exit(adv7511); 1299 drm_bridge_remove(&adv7511->bridge); 1300 err_unregister_cec: 1301 i2c_unregister_device(adv7511->i2c_cec); 1302 clk_disable_unprepare(adv7511->cec_clk); 1303 err_i2c_unregister_packet: 1304 i2c_unregister_device(adv7511->i2c_packet); 1305 err_i2c_unregister_edid: 1306 i2c_unregister_device(adv7511->i2c_edid); 1307 uninit_regulators: 1308 adv7511_uninit_regulators(adv7511); 1309 1310 return ret; 1311 } 1312 1313 static int adv7511_remove(struct i2c_client *i2c) 1314 { 1315 struct adv7511 *adv7511 = i2c_get_clientdata(i2c); 1316 1317 i2c_unregister_device(adv7511->i2c_cec); 1318 clk_disable_unprepare(adv7511->cec_clk); 1319 1320 adv7511_uninit_regulators(adv7511); 1321 1322 drm_bridge_remove(&adv7511->bridge); 1323 1324 adv7511_audio_exit(adv7511); 1325 1326 cec_unregister_adapter(adv7511->cec_adap); 1327 1328 i2c_unregister_device(adv7511->i2c_packet); 1329 i2c_unregister_device(adv7511->i2c_edid); 1330 1331 return 0; 1332 } 1333 1334 static const struct i2c_device_id adv7511_i2c_ids[] = { 1335 { "adv7511", ADV7511 }, 1336 { "adv7511w", ADV7511 }, 1337 { "adv7513", ADV7511 }, 1338 { "adv7533", ADV7533 }, 1339 { "adv7535", ADV7535 }, 1340 { } 1341 }; 1342 MODULE_DEVICE_TABLE(i2c, adv7511_i2c_ids); 1343 1344 static const struct of_device_id adv7511_of_ids[] = { 1345 { .compatible = "adi,adv7511", .data = (void *)ADV7511 }, 1346 { .compatible = "adi,adv7511w", .data = (void *)ADV7511 }, 1347 { .compatible = "adi,adv7513", .data = (void *)ADV7511 }, 1348 { .compatible = "adi,adv7533", .data = (void *)ADV7533 }, 1349 { .compatible = "adi,adv7535", .data = (void *)ADV7535 }, 1350 { } 1351 }; 1352 MODULE_DEVICE_TABLE(of, adv7511_of_ids); 1353 1354 static struct mipi_dsi_driver adv7533_dsi_driver = { 1355 .driver.name = "adv7533", 1356 }; 1357 1358 static struct i2c_driver adv7511_driver = { 1359 .driver = { 1360 .name = "adv7511", 1361 .of_match_table = adv7511_of_ids, 1362 }, 1363 .id_table = adv7511_i2c_ids, 1364 .probe = adv7511_probe, 1365 .remove = adv7511_remove, 1366 }; 1367 1368 static int __init adv7511_init(void) 1369 { 1370 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) 1371 mipi_dsi_driver_register(&adv7533_dsi_driver); 1372 1373 return i2c_add_driver(&adv7511_driver); 1374 } 1375 module_init(adv7511_init); 1376 1377 static void __exit adv7511_exit(void) 1378 { 1379 i2c_del_driver(&adv7511_driver); 1380 1381 if (IS_ENABLED(CONFIG_DRM_MIPI_DSI)) 1382 mipi_dsi_driver_unregister(&adv7533_dsi_driver); 1383 } 1384 module_exit(adv7511_exit); 1385 1386 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>"); 1387 MODULE_DESCRIPTION("ADV7511 HDMI transmitter driver"); 1388 MODULE_LICENSE("GPL"); 1389