drivers/gpu/drm/bridge/adv7511/adv7511_drv.c

   1 /*
   2  * Analog Devices ADV7511 HDMI transmitter driver
   3  *
   4  * Copyright 2012 Analog Devices Inc.
   5  *
   6  * Licensed under the GPL-2.
   7  */
   8
   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 <drm/drmP.h>
  16 #include <drm/drm_atomic.h>
  17 #include <drm/drm_atomic_helper.h>
  18 #include <drm/drm_edid.h>
  19
  20 #include "adv7511.h"
  21
  22 /* ADI recommended values for proper operation. */
  23 static const struct reg_sequence adv7511_fixed_registers[] = {
  24         { 0x98, 0x03 },
  25         { 0x9a, 0xe0 },
  26         { 0x9c, 0x30 },
  27         { 0x9d, 0x61 },
  28         { 0xa2, 0xa4 },
  29         { 0xa3, 0xa4 },
  30         { 0xe0, 0xd0 },
  31         { 0xf9, 0x00 },
  32         { 0x55, 0x02 },
  33 };
  34
  35 /* -----------------------------------------------------------------------------
  36  * Register access
  37  */
  38
  39 static const uint8_t adv7511_register_defaults[] = {
  40         0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 00 */
  41         0x00, 0x00, 0x01, 0x0e, 0xbc, 0x18, 0x01, 0x13,
  42         0x25, 0x37, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 10 */
  43         0x46, 0x62, 0x04, 0xa8, 0x00, 0x00, 0x1c, 0x84,
  44         0x1c, 0xbf, 0x04, 0xa8, 0x1e, 0x70, 0x02, 0x1e, /* 20 */
  45         0x00, 0x00, 0x04, 0xa8, 0x08, 0x12, 0x1b, 0xac,
  46         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 30 */
  47         0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0xb0,
  48         0x00, 0x50, 0x90, 0x7e, 0x79, 0x70, 0x00, 0x00, /* 40 */
  49         0x00, 0xa8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
  50         0x00, 0x00, 0x02, 0x0d, 0x00, 0x00, 0x00, 0x00, /* 50 */
  51         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  52         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 60 */
  53         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  54         0x01, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 70 */
  55         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  56         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 80 */
  57         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  58         0x00, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, 0x00, /* 90 */
  59         0x0b, 0x02, 0x00, 0x18, 0x5a, 0x60, 0x00, 0x00,
  60         0x00, 0x00, 0x80, 0x80, 0x08, 0x04, 0x00, 0x00, /* a0 */
  61         0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x40, 0x14,
  62         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* b0 */
  63         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  64         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* c0 */
  65         0x00, 0x03, 0x00, 0x00, 0x02, 0x00, 0x01, 0x04,
  66         0x30, 0xff, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, /* d0 */
  67         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x01,
  68         0x80, 0x75, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, /* e0 */
  69         0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  70         0x00, 0x00, 0x00, 0x00, 0x00, 0x75, 0x11, 0x00, /* f0 */
  71         0x00, 0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  72 };
  73
  74 static bool adv7511_register_volatile(struct device *dev, unsigned int reg)
  75 {
  76         switch (reg) {
  77         case ADV7511_REG_CHIP_REVISION:
  78         case ADV7511_REG_SPDIF_FREQ:
  79         case ADV7511_REG_CTS_AUTOMATIC1:
  80         case ADV7511_REG_CTS_AUTOMATIC2:
  81         case ADV7511_REG_VIC_DETECTED:
  82         case ADV7511_REG_VIC_SEND:
  83         case ADV7511_REG_AUX_VIC_DETECTED:
  84         case ADV7511_REG_STATUS:
  85         case ADV7511_REG_GC(1):
  86         case ADV7511_REG_INT(0):
  87         case ADV7511_REG_INT(1):
  88         case ADV7511_REG_PLL_STATUS:
  89         case ADV7511_REG_AN(0):
  90         case ADV7511_REG_AN(1):
  91         case ADV7511_REG_AN(2):
  92         case ADV7511_REG_AN(3):
  93         case ADV7511_REG_AN(4):
  94         case ADV7511_REG_AN(5):
  95         case ADV7511_REG_AN(6):
  96         case ADV7511_REG_AN(7):
  97         case ADV7511_REG_HDCP_STATUS:
  98         case ADV7511_REG_BCAPS:
  99         case ADV7511_REG_BKSV(0):
 100         case ADV7511_REG_BKSV(1):
 101         case ADV7511_REG_BKSV(2):
 102         case ADV7511_REG_BKSV(3):
 103         case ADV7511_REG_BKSV(4):
 104         case ADV7511_REG_DDC_STATUS:
 105         case ADV7511_REG_EDID_READ_CTRL:
 106         case ADV7511_REG_BSTATUS(0):
 107         case ADV7511_REG_BSTATUS(1):
 108         case ADV7511_REG_CHIP_ID_HIGH:
 109         case ADV7511_REG_CHIP_ID_LOW:
 110                 return true;
 111         }
 112
 113         return false;
 114 }
 115
 116 static const struct regmap_config adv7511_regmap_config = {
 117         .reg_bits = 8,
 118         .val_bits = 8,
 119
 120         .max_register = 0xff,
 121         .cache_type = REGCACHE_RBTREE,
 122         .reg_defaults_raw = adv7511_register_defaults,
 123         .num_reg_defaults_raw = ARRAY_SIZE(adv7511_register_defaults),
 124
 125         .volatile_reg = adv7511_register_volatile,
 126 };
 127
 128 /* -----------------------------------------------------------------------------
 129  * Hardware configuration
 130  */
 131
 132 static void adv7511_set_colormap(struct adv7511 *adv7511, bool enable,
 133                                  const uint16_t *coeff,
 134                                  unsigned int scaling_factor)
 135 {
 136         unsigned int i;
 137
 138         regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1),
 139                            ADV7511_CSC_UPDATE_MODE, ADV7511_CSC_UPDATE_MODE);
 140
 141         if (enable) {
 142                 for (i = 0; i < 12; ++i) {
 143                         regmap_update_bits(adv7511->regmap,
 144                                            ADV7511_REG_CSC_UPPER(i),
 145                                            0x1f, coeff[i] >> 8);
 146                         regmap_write(adv7511->regmap,
 147                                      ADV7511_REG_CSC_LOWER(i),
 148                                      coeff[i] & 0xff);
 149                 }
 150         }
 151
 152         if (enable)
 153                 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0),
 154                                    0xe0, 0x80 | (scaling_factor << 5));
 155         else
 156                 regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(0),
 157                                    0x80, 0x00);
 158
 159         regmap_update_bits(adv7511->regmap, ADV7511_REG_CSC_UPPER(1),
 160                            ADV7511_CSC_UPDATE_MODE, 0);
 161 }
 162
 163 static int adv7511_packet_enable(struct adv7511 *adv7511, unsigned int packet)
 164 {
 165         if (packet & 0xff)
 166                 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0,
 167                                    packet, 0xff);
 168
 169         if (packet & 0xff00) {
 170                 packet >>= 8;
 171                 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1,
 172                                    packet, 0xff);
 173         }
 174
 175         return 0;
 176 }
 177
 178 static int adv7511_packet_disable(struct adv7511 *adv7511, unsigned int packet)
 179 {
 180         if (packet & 0xff)
 181                 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE0,
 182                                    packet, 0x00);
 183
 184         if (packet & 0xff00) {
 185                 packet >>= 8;
 186                 regmap_update_bits(adv7511->regmap, ADV7511_REG_PACKET_ENABLE1,
 187                                    packet, 0x00);
 188         }
 189
 190         return 0;
 191 }
 192
 193 /* Coefficients for adv7511 color space conversion */
 194 static const uint16_t adv7511_csc_ycbcr_to_rgb[] = {
 195         0x0734, 0x04ad, 0x0000, 0x1c1b,
 196         0x1ddc, 0x04ad, 0x1f24, 0x0135,
 197         0x0000, 0x04ad, 0x087c, 0x1b77,
 198 };
 199
 200 static void adv7511_set_config_csc(struct adv7511 *adv7511,
 201                                    struct drm_connector *connector,
 202                                    bool rgb)
 203 {
 204         struct adv7511_video_config config;
 205         bool output_format_422, output_format_ycbcr;
 206         unsigned int mode;
 207         uint8_t infoframe[17];
 208
 209         if (adv7511->edid)
 210                 config.hdmi_mode = drm_detect_hdmi_monitor(adv7511->edid);
 211         else
 212                 config.hdmi_mode = false;
 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_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(1),
 343                              ADV7511_INT1_DDC_ERROR);
 344         }
 345
 346         /*
 347          * Per spec it is allowed to pulse the HPD signal to indicate that the
 348          * EDID information has changed. Some monitors do this when they wakeup
 349          * from standby or are enabled. When the HPD goes low the adv7511 is
 350          * reset and the outputs are disabled which might cause the monitor to
 351          * go to standby again. To avoid this we ignore the HPD pin for the
 352          * first few seconds after enabling the output.
 353          */
 354         regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
 355                            ADV7511_REG_POWER2_HPD_SRC_MASK,
 356                            ADV7511_REG_POWER2_HPD_SRC_NONE);
 357 }
 358
 359 static void adv7511_power_on(struct adv7511 *adv7511)
 360 {
 361         __adv7511_power_on(adv7511);
 362
 363         /*
 364          * Most of the registers are reset during power down or when HPD is low.
 365          */
 366         regcache_sync(adv7511->regmap);
 367
 368         if (adv7511->type == ADV7533)
 369                 adv7533_dsi_power_on(adv7511);
 370         adv7511->powered = true;
 371 }
 372
 373 static void __adv7511_power_off(struct adv7511 *adv7511)
 374 {
 375         /* TODO: setup additional power down modes */
 376         regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER,
 377                            ADV7511_POWER_POWER_DOWN,
 378                            ADV7511_POWER_POWER_DOWN);
 379         regcache_mark_dirty(adv7511->regmap);
 380 }
 381
 382 static void adv7511_power_off(struct adv7511 *adv7511)
 383 {
 384         __adv7511_power_off(adv7511);
 385         if (adv7511->type == ADV7533)
 386                 adv7533_dsi_power_off(adv7511);
 387         adv7511->powered = false;
 388 }
 389
 390 /* -----------------------------------------------------------------------------
 391  * Interrupt and hotplug detection
 392  */
 393
 394 static bool adv7511_hpd(struct adv7511 *adv7511)
 395 {
 396         unsigned int irq0;
 397         int ret;
 398
 399         ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
 400         if (ret < 0)
 401                 return false;
 402
 403         if (irq0 & ADV7511_INT0_HPD) {
 404                 regmap_write(adv7511->regmap, ADV7511_REG_INT(0),
 405                              ADV7511_INT0_HPD);
 406                 return true;
 407         }
 408
 409         return false;
 410 }
 411
 412 static void adv7511_hpd_work(struct work_struct *work)
 413 {
 414         struct adv7511 *adv7511 = container_of(work, struct adv7511, hpd_work);
 415         enum drm_connector_status status;
 416         unsigned int val;
 417         int ret;
 418
 419         ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
 420         if (ret < 0)
 421                 status = connector_status_disconnected;
 422         else if (val & ADV7511_STATUS_HPD)
 423                 status = connector_status_connected;
 424         else
 425                 status = connector_status_disconnected;
 426
 427         if (adv7511->connector.status != status) {
 428                 adv7511->connector.status = status;
 429                 drm_kms_helper_hotplug_event(adv7511->connector.dev);
 430         }
 431 }
 432
 433 static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd)
 434 {
 435         unsigned int irq0, irq1;
 436         int ret;
 437
 438         ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
 439         if (ret < 0)
 440                 return ret;
 441
 442         ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(1), &irq1);
 443         if (ret < 0)
 444                 return ret;
 445
 446         regmap_write(adv7511->regmap, ADV7511_REG_INT(0), irq0);
 447         regmap_write(adv7511->regmap, ADV7511_REG_INT(1), irq1);
 448
 449         if (process_hpd && irq0 & ADV7511_INT0_HPD && adv7511->bridge.encoder)
 450                 schedule_work(&adv7511->hpd_work);
 451
 452         if (irq0 & ADV7511_INT0_EDID_READY || irq1 & ADV7511_INT1_DDC_ERROR) {
 453                 adv7511->edid_read = true;
 454
 455                 if (adv7511->i2c_main->irq)
 456                         wake_up_all(&adv7511->wq);
 457         }
 458
 459         return 0;
 460 }
 461
 462 static irqreturn_t adv7511_irq_handler(int irq, void *devid)
 463 {
 464         struct adv7511 *adv7511 = devid;
 465         int ret;
 466
 467         ret = adv7511_irq_process(adv7511, true);
 468         return ret < 0 ? IRQ_NONE : IRQ_HANDLED;
 469 }
 470
 471 /* -----------------------------------------------------------------------------
 472  * EDID retrieval
 473  */
 474
 475 static int adv7511_wait_for_edid(struct adv7511 *adv7511, int timeout)
 476 {
 477         int ret;
 478
 479         if (adv7511->i2c_main->irq) {
 480                 ret = wait_event_interruptible_timeout(adv7511->wq,
 481                                 adv7511->edid_read, msecs_to_jiffies(timeout));
 482         } else {
 483                 for (; timeout > 0; timeout -= 25) {
 484                         ret = adv7511_irq_process(adv7511, false);
 485                         if (ret < 0)
 486                                 break;
 487
 488                         if (adv7511->edid_read)
 489                                 break;
 490
 491                         msleep(25);
 492                 }
 493         }
 494
 495         return adv7511->edid_read ? 0 : -EIO;
 496 }
 497
 498 static int adv7511_get_edid_block(void *data, u8 *buf, unsigned int block,
 499                                   size_t len)
 500 {
 501         struct adv7511 *adv7511 = data;
 502         struct i2c_msg xfer[2];
 503         uint8_t offset;
 504         unsigned int i;
 505         int ret;
 506
 507         if (len > 128)
 508                 return -EINVAL;
 509
 510         if (adv7511->current_edid_segment != block / 2) {
 511                 unsigned int status;
 512
 513                 ret = regmap_read(adv7511->regmap, ADV7511_REG_DDC_STATUS,
 514                                   &status);
 515                 if (ret < 0)
 516                         return ret;
 517
 518                 if (status != 2) {
 519                         adv7511->edid_read = false;
 520                         regmap_write(adv7511->regmap, ADV7511_REG_EDID_SEGMENT,
 521                                      block);
 522                         ret = adv7511_wait_for_edid(adv7511, 200);
 523                         if (ret < 0)
 524                                 return ret;
 525                 }
 526
 527                 /* Break this apart, hopefully more I2C controllers will
 528                  * support 64 byte transfers than 256 byte transfers
 529                  */
 530
 531                 xfer[0].addr = adv7511->i2c_edid->addr;
 532                 xfer[0].flags = 0;
 533                 xfer[0].len = 1;
 534                 xfer[0].buf = &offset;
 535                 xfer[1].addr = adv7511->i2c_edid->addr;
 536                 xfer[1].flags = I2C_M_RD;
 537                 xfer[1].len = 64;
 538                 xfer[1].buf = adv7511->edid_buf;
 539
 540                 offset = 0;
 541
 542                 for (i = 0; i < 4; ++i) {
 543                         ret = i2c_transfer(adv7511->i2c_edid->adapter, xfer,
 544                                            ARRAY_SIZE(xfer));
 545                         if (ret < 0)
 546                                 return ret;
 547                         else if (ret != 2)
 548                                 return -EIO;
 549
 550                         xfer[1].buf += 64;
 551                         offset += 64;
 552                 }
 553
 554                 adv7511->current_edid_segment = block / 2;
 555         }
 556
 557         if (block % 2 == 0)
 558                 memcpy(buf, adv7511->edid_buf, len);
 559         else
 560                 memcpy(buf, adv7511->edid_buf + 128, len);
 561
 562         return 0;
 563 }
 564
 565 /* -----------------------------------------------------------------------------
 566  * ADV75xx helpers
 567  */
 568
 569 static int adv7511_get_modes(struct adv7511 *adv7511,
 570                              struct drm_connector *connector)
 571 {
 572         struct edid *edid;
 573         unsigned int count;
 574
 575         /* Reading the EDID only works if the device is powered */
 576         if (!adv7511->powered) {
 577                 unsigned int edid_i2c_addr =
 578                                         (adv7511->i2c_main->addr << 1) + 4;
 579
 580                 __adv7511_power_on(adv7511);
 581
 582                 /* Reset the EDID_I2C_ADDR register as it might be cleared */
 583                 regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR,
 584                              edid_i2c_addr);
 585         }
 586
 587         edid = drm_do_get_edid(connector, adv7511_get_edid_block, adv7511);
 588
 589         if (!adv7511->powered)
 590                 __adv7511_power_off(adv7511);
 591
 592         kfree(adv7511->edid);
 593         adv7511->edid = edid;
 594         if (!edid)
 595                 return 0;
 596
 597         drm_mode_connector_update_edid_property(connector, edid);
 598         count = drm_add_edid_modes(connector, edid);
 599
 600         adv7511_set_config_csc(adv7511, connector, adv7511->rgb);
 601
 602         return count;
 603 }
 604
 605 static enum drm_connector_status
 606 adv7511_detect(struct adv7511 *adv7511, struct drm_connector *connector)
 607 {
 608         enum drm_connector_status status;
 609         unsigned int val;
 610         bool hpd;
 611         int ret;
 612
 613         ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
 614         if (ret < 0)
 615                 return connector_status_disconnected;
 616
 617         if (val & ADV7511_STATUS_HPD)
 618                 status = connector_status_connected;
 619         else
 620                 status = connector_status_disconnected;
 621
 622         hpd = adv7511_hpd(adv7511);
 623
 624         /* The chip resets itself when the cable is disconnected, so in case
 625          * there is a pending HPD interrupt and the cable is connected there was
 626          * at least one transition from disconnected to connected and the chip
 627          * has to be reinitialized. */
 628         if (status == connector_status_connected && hpd && adv7511->powered) {
 629                 regcache_mark_dirty(adv7511->regmap);
 630                 adv7511_power_on(adv7511);
 631                 adv7511_get_modes(adv7511, connector);
 632                 if (adv7511->status == connector_status_connected)
 633                         status = connector_status_disconnected;
 634         } else {
 635                 /* Renable HPD sensing */
 636                 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
 637                                    ADV7511_REG_POWER2_HPD_SRC_MASK,
 638                                    ADV7511_REG_POWER2_HPD_SRC_BOTH);
 639         }
 640
 641         adv7511->status = status;
 642         return status;
 643 }
 644
 645 static int adv7511_mode_valid(struct adv7511 *adv7511,
 646                               struct drm_display_mode *mode)
 647 {
 648         if (mode->clock > 165000)
 649                 return MODE_CLOCK_HIGH;
 650
 651         return MODE_OK;
 652 }
 653
 654 static void adv7511_mode_set(struct adv7511 *adv7511,
 655                              struct drm_display_mode *mode,
 656                              struct drm_display_mode *adj_mode)
 657 {
 658         unsigned int low_refresh_rate;
 659         unsigned int hsync_polarity = 0;
 660         unsigned int vsync_polarity = 0;
 661
 662         if (adv7511->embedded_sync) {
 663                 unsigned int hsync_offset, hsync_len;
 664                 unsigned int vsync_offset, vsync_len;
 665
 666                 hsync_offset = adj_mode->crtc_hsync_start -
 667                                adj_mode->crtc_hdisplay;
 668                 vsync_offset = adj_mode->crtc_vsync_start -
 669                                adj_mode->crtc_vdisplay;
 670                 hsync_len = adj_mode->crtc_hsync_end -
 671                             adj_mode->crtc_hsync_start;
 672                 vsync_len = adj_mode->crtc_vsync_end -
 673                             adj_mode->crtc_vsync_start;
 674
 675                 /* The hardware vsync generator has a off-by-one bug */
 676                 vsync_offset += 1;
 677
 678                 regmap_write(adv7511->regmap, ADV7511_REG_HSYNC_PLACEMENT_MSB,
 679                              ((hsync_offset >> 10) & 0x7) << 5);
 680                 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(0),
 681                              (hsync_offset >> 2) & 0xff);
 682                 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(1),
 683                              ((hsync_offset & 0x3) << 6) |
 684                              ((hsync_len >> 4) & 0x3f));
 685                 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(2),
 686                              ((hsync_len & 0xf) << 4) |
 687                              ((vsync_offset >> 6) & 0xf));
 688                 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(3),
 689                              ((vsync_offset & 0x3f) << 2) |
 690                              ((vsync_len >> 8) & 0x3));
 691                 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(4),
 692                              vsync_len & 0xff);
 693
 694                 hsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PHSYNC);
 695                 vsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PVSYNC);
 696         } else {
 697                 enum adv7511_sync_polarity mode_hsync_polarity;
 698                 enum adv7511_sync_polarity mode_vsync_polarity;
 699
 700                 /**
 701                  * If the input signal is always low or always high we want to
 702                  * invert or let it passthrough depending on the polarity of the
 703                  * current mode.
 704                  **/
 705                 if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC)
 706                         mode_hsync_polarity = ADV7511_SYNC_POLARITY_LOW;
 707                 else
 708                         mode_hsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
 709
 710                 if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC)
 711                         mode_vsync_polarity = ADV7511_SYNC_POLARITY_LOW;
 712                 else
 713                         mode_vsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
 714
 715                 if (adv7511->hsync_polarity != mode_hsync_polarity &&
 716                     adv7511->hsync_polarity !=
 717                     ADV7511_SYNC_POLARITY_PASSTHROUGH)
 718                         hsync_polarity = 1;
 719
 720                 if (adv7511->vsync_polarity != mode_vsync_polarity &&
 721                     adv7511->vsync_polarity !=
 722                     ADV7511_SYNC_POLARITY_PASSTHROUGH)
 723                         vsync_polarity = 1;
 724         }
 725
 726         if (mode->vrefresh <= 24000)
 727                 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_24HZ;
 728         else if (mode->vrefresh <= 25000)
 729                 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_25HZ;
 730         else if (mode->vrefresh <= 30000)
 731                 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_30HZ;
 732         else
 733                 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
 734
 735         regmap_update_bits(adv7511->regmap, 0xfb,
 736                 0x6, low_refresh_rate << 1);
 737         regmap_update_bits(adv7511->regmap, 0x17,
 738                 0x60, (vsync_polarity << 6) | (hsync_polarity << 5));
 739
 740         if (adv7511->type == ADV7533)
 741                 adv7533_mode_set(adv7511, adj_mode);
 742
 743         drm_mode_copy(&adv7511->curr_mode, adj_mode);
 744
 745         /*
 746          * TODO Test first order 4:2:2 to 4:4:4 up conversion method, which is
 747          * supposed to give better results.
 748          */
 749
 750         adv7511->f_tmds = mode->clock;
 751 }
 752
 753 /* Connector funcs */
 754 static struct adv7511 *connector_to_adv7511(struct drm_connector *connector)
 755 {
 756         return container_of(connector, struct adv7511, connector);
 757 }
 758
 759 static int adv7511_connector_get_modes(struct drm_connector *connector)
 760 {
 761         struct adv7511 *adv = connector_to_adv7511(connector);
 762
 763         return adv7511_get_modes(adv, connector);
 764 }
 765
 766 static enum drm_mode_status
 767 adv7511_connector_mode_valid(struct drm_connector *connector,
 768                              struct drm_display_mode *mode)
 769 {
 770         struct adv7511 *adv = connector_to_adv7511(connector);
 771
 772         return adv7511_mode_valid(adv, mode);
 773 }
 774
 775 static struct drm_connector_helper_funcs adv7511_connector_helper_funcs = {
 776         .get_modes = adv7511_connector_get_modes,
 777         .mode_valid = adv7511_connector_mode_valid,
 778 };
 779
 780 static enum drm_connector_status
 781 adv7511_connector_detect(struct drm_connector *connector, bool force)
 782 {
 783         struct adv7511 *adv = connector_to_adv7511(connector);
 784
 785         return adv7511_detect(adv, connector);
 786 }
 787
 788 static struct drm_connector_funcs adv7511_connector_funcs = {
 789         .dpms = drm_atomic_helper_connector_dpms,
 790         .fill_modes = drm_helper_probe_single_connector_modes,
 791         .detect = adv7511_connector_detect,
 792         .destroy = drm_connector_cleanup,
 793         .reset = drm_atomic_helper_connector_reset,
 794         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
 795         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 796 };
 797
 798 /* Bridge funcs */
 799 static struct adv7511 *bridge_to_adv7511(struct drm_bridge *bridge)
 800 {
 801         return container_of(bridge, struct adv7511, bridge);
 802 }
 803
 804 static void adv7511_bridge_enable(struct drm_bridge *bridge)
 805 {
 806         struct adv7511 *adv = bridge_to_adv7511(bridge);
 807
 808         adv7511_power_on(adv);
 809 }
 810
 811 static void adv7511_bridge_disable(struct drm_bridge *bridge)
 812 {
 813         struct adv7511 *adv = bridge_to_adv7511(bridge);
 814
 815         adv7511_power_off(adv);
 816 }
 817
 818 static void adv7511_bridge_mode_set(struct drm_bridge *bridge,
 819                                     struct drm_display_mode *mode,
 820                                     struct drm_display_mode *adj_mode)
 821 {
 822         struct adv7511 *adv = bridge_to_adv7511(bridge);
 823
 824         adv7511_mode_set(adv, mode, adj_mode);
 825 }
 826
 827 static int adv7511_bridge_attach(struct drm_bridge *bridge)
 828 {
 829         struct adv7511 *adv = bridge_to_adv7511(bridge);
 830         int ret;
 831
 832         if (!bridge->encoder) {
 833                 DRM_ERROR("Parent encoder object not found");
 834                 return -ENODEV;
 835         }
 836
 837         adv->connector.polled = DRM_CONNECTOR_POLL_HPD;
 838
 839         ret = drm_connector_init(bridge->dev, &adv->connector,
 840                                  &adv7511_connector_funcs,
 841                                  DRM_MODE_CONNECTOR_HDMIA);
 842         if (ret) {
 843                 DRM_ERROR("Failed to initialize connector with drm\n");
 844                 return ret;
 845         }
 846         drm_connector_helper_add(&adv->connector,
 847                                  &adv7511_connector_helper_funcs);
 848         drm_mode_connector_attach_encoder(&adv->connector, bridge->encoder);
 849
 850         if (adv->type == ADV7533)
 851                 ret = adv7533_attach_dsi(adv);
 852
 853         if (adv->i2c_main->irq)
 854                 regmap_write(adv->regmap, ADV7511_REG_INT_ENABLE(0),
 855                              ADV7511_INT0_HPD);
 856
 857         return ret;
 858 }
 859
 860 static struct drm_bridge_funcs adv7511_bridge_funcs = {
 861         .enable = adv7511_bridge_enable,
 862         .disable = adv7511_bridge_disable,
 863         .mode_set = adv7511_bridge_mode_set,
 864         .attach = adv7511_bridge_attach,
 865 };
 866
 867 /* -----------------------------------------------------------------------------
 868  * Probe & remove
 869  */
 870
 871 static const char * const adv7511_supply_names[] = {
 872         "avdd",
 873         "dvdd",
 874         "pvdd",
 875         "bgvdd",
 876         "dvdd-3v",
 877 };
 878
 879 static const char * const adv7533_supply_names[] = {
 880         "avdd",
 881         "dvdd",
 882         "pvdd",
 883         "a2vdd",
 884         "v3p3",
 885         "v1p2",
 886 };
 887
 888 static int adv7511_init_regulators(struct adv7511 *adv)
 889 {
 890         struct device *dev = &adv->i2c_main->dev;
 891         const char * const *supply_names;
 892         unsigned int i;
 893         int ret;
 894
 895         if (adv->type == ADV7511) {
 896                 supply_names = adv7511_supply_names;
 897                 adv->num_supplies = ARRAY_SIZE(adv7511_supply_names);
 898         } else {
 899                 supply_names = adv7533_supply_names;
 900                 adv->num_supplies = ARRAY_SIZE(adv7533_supply_names);
 901         }
 902
 903         adv->supplies = devm_kcalloc(dev, adv->num_supplies,
 904                                      sizeof(*adv->supplies), GFP_KERNEL);
 905         if (!adv->supplies)
 906                 return -ENOMEM;
 907
 908         for (i = 0; i < adv->num_supplies; i++)
 909                 adv->supplies[i].supply = supply_names[i];
 910
 911         ret = devm_regulator_bulk_get(dev, adv->num_supplies, adv->supplies);
 912         if (ret)
 913                 return ret;
 914
 915         return regulator_bulk_enable(adv->num_supplies, adv->supplies);
 916 }
 917
 918 static void adv7511_uninit_regulators(struct adv7511 *adv)
 919 {
 920         regulator_bulk_disable(adv->num_supplies, adv->supplies);
 921 }
 922
 923 static int adv7511_parse_dt(struct device_node *np,
 924                             struct adv7511_link_config *config)
 925 {
 926         const char *str;
 927         int ret;
 928
 929         of_property_read_u32(np, "adi,input-depth", &config->input_color_depth);
 930         if (config->input_color_depth != 8 && config->input_color_depth != 10 &&
 931             config->input_color_depth != 12)
 932                 return -EINVAL;
 933
 934         ret = of_property_read_string(np, "adi,input-colorspace", &str);
 935         if (ret < 0)
 936                 return ret;
 937
 938         if (!strcmp(str, "rgb"))
 939                 config->input_colorspace = HDMI_COLORSPACE_RGB;
 940         else if (!strcmp(str, "yuv422"))
 941                 config->input_colorspace = HDMI_COLORSPACE_YUV422;
 942         else if (!strcmp(str, "yuv444"))
 943                 config->input_colorspace = HDMI_COLORSPACE_YUV444;
 944         else
 945                 return -EINVAL;
 946
 947         ret = of_property_read_string(np, "adi,input-clock", &str);
 948         if (ret < 0)
 949                 return ret;
 950
 951         if (!strcmp(str, "1x"))
 952                 config->input_clock = ADV7511_INPUT_CLOCK_1X;
 953         else if (!strcmp(str, "2x"))
 954                 config->input_clock = ADV7511_INPUT_CLOCK_2X;
 955         else if (!strcmp(str, "ddr"))
 956                 config->input_clock = ADV7511_INPUT_CLOCK_DDR;
 957         else
 958                 return -EINVAL;
 959
 960         if (config->input_colorspace == HDMI_COLORSPACE_YUV422 ||
 961             config->input_clock != ADV7511_INPUT_CLOCK_1X) {
 962                 ret = of_property_read_u32(np, "adi,input-style",
 963                                            &config->input_style);
 964                 if (ret)
 965                         return ret;
 966
 967                 if (config->input_style < 1 || config->input_style > 3)
 968                         return -EINVAL;
 969
 970                 ret = of_property_read_string(np, "adi,input-justification",
 971                                               &str);
 972                 if (ret < 0)
 973                         return ret;
 974
 975                 if (!strcmp(str, "left"))
 976                         config->input_justification =
 977                                 ADV7511_INPUT_JUSTIFICATION_LEFT;
 978                 else if (!strcmp(str, "evenly"))
 979                         config->input_justification =
 980                                 ADV7511_INPUT_JUSTIFICATION_EVENLY;
 981                 else if (!strcmp(str, "right"))
 982                         config->input_justification =
 983                                 ADV7511_INPUT_JUSTIFICATION_RIGHT;
 984                 else
 985                         return -EINVAL;
 986
 987         } else {
 988                 config->input_style = 1;
 989                 config->input_justification = ADV7511_INPUT_JUSTIFICATION_LEFT;
 990         }
 991
 992         of_property_read_u32(np, "adi,clock-delay", &config->clock_delay);
 993         if (config->clock_delay < -1200 || config->clock_delay > 1600)
 994                 return -EINVAL;
 995
 996         config->embedded_sync = of_property_read_bool(np, "adi,embedded-sync");
 997
 998         /* Hardcode the sync pulse configurations for now. */
 999         config->sync_pulse = ADV7511_INPUT_SYNC_PULSE_NONE;
1000         config->vsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
1001         config->hsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
1002
1003         return 0;
1004 }
1005
1006 static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
1007 {
1008         struct adv7511_link_config link_config;
1009         struct adv7511 *adv7511;
1010         struct device *dev = &i2c->dev;
1011         unsigned int main_i2c_addr = i2c->addr << 1;
1012         unsigned int edid_i2c_addr = main_i2c_addr + 4;
1013         unsigned int val;
1014         int ret;
1015
1016         if (!dev->of_node)
1017                 return -EINVAL;
1018
1019         adv7511 = devm_kzalloc(dev, sizeof(*adv7511), GFP_KERNEL);
1020         if (!adv7511)
1021                 return -ENOMEM;
1022
1023         adv7511->i2c_main = i2c;
1024         adv7511->powered = false;
1025         adv7511->status = connector_status_disconnected;
1026
1027         if (dev->of_node)
1028                 adv7511->type = (enum adv7511_type)of_device_get_match_data(dev);
1029         else
1030                 adv7511->type = id->driver_data;
1031
1032         memset(&link_config, 0, sizeof(link_config));
1033
1034         if (adv7511->type == ADV7511)
1035                 ret = adv7511_parse_dt(dev->of_node, &link_config);
1036         else
1037                 ret = adv7533_parse_dt(dev->of_node, adv7511);
1038         if (ret)
1039                 return ret;
1040
1041         ret = adv7511_init_regulators(adv7511);
1042         if (ret) {
1043                 dev_err(dev, "failed to init regulators\n");
1044                 return ret;
1045         }
1046
1047         /*
1048          * The power down GPIO is optional. If present, toggle it from active to
1049          * inactive to wake up the encoder.
1050          */
1051         adv7511->gpio_pd = devm_gpiod_get_optional(dev, "pd", GPIOD_OUT_HIGH);
1052         if (IS_ERR(adv7511->gpio_pd)) {
1053                 ret = PTR_ERR(adv7511->gpio_pd);
1054                 goto uninit_regulators;
1055         }
1056
1057         if (adv7511->gpio_pd) {
1058                 mdelay(5);
1059                 gpiod_set_value_cansleep(adv7511->gpio_pd, 0);
1060         }
1061
1062         adv7511->regmap = devm_regmap_init_i2c(i2c, &adv7511_regmap_config);
1063         if (IS_ERR(adv7511->regmap)) {
1064                 ret = PTR_ERR(adv7511->regmap);
1065                 goto uninit_regulators;
1066         }
1067
1068         ret = regmap_read(adv7511->regmap, ADV7511_REG_CHIP_REVISION, &val);
1069         if (ret)
1070                 goto uninit_regulators;
1071         dev_dbg(dev, "Rev. %d\n", val);
1072
1073         if (adv7511->type == ADV7511)
1074                 ret = regmap_register_patch(adv7511->regmap,
1075                                             adv7511_fixed_registers,
1076                                             ARRAY_SIZE(adv7511_fixed_registers));
1077         else
1078                 ret = adv7533_patch_registers(adv7511);
1079         if (ret)
1080                 goto uninit_regulators;
1081
1082         regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR, edid_i2c_addr);
1083         regmap_write(adv7511->regmap, ADV7511_REG_PACKET_I2C_ADDR,
1084                      main_i2c_addr - 0xa);
1085         regmap_write(adv7511->regmap, ADV7511_REG_CEC_I2C_ADDR,
1086                      main_i2c_addr - 2);
1087
1088         adv7511_packet_disable(adv7511, 0xffff);
1089
1090         adv7511->i2c_edid = i2c_new_dummy(i2c->adapter, edid_i2c_addr >> 1);
1091         if (!adv7511->i2c_edid) {
1092                 ret = -ENOMEM;
1093                 goto uninit_regulators;
1094         }
1095
1096         if (adv7511->type == ADV7533) {
1097                 ret = adv7533_init_cec(adv7511);
1098                 if (ret)
1099                         goto err_i2c_unregister_edid;
1100         }
1101
1102         INIT_WORK(&adv7511->hpd_work, adv7511_hpd_work);
1103
1104         if (i2c->irq) {
1105                 init_waitqueue_head(&adv7511->wq);
1106
1107                 ret = devm_request_threaded_irq(dev, i2c->irq, NULL,
1108                                                 adv7511_irq_handler,
1109                                                 IRQF_ONESHOT, dev_name(dev),
1110                                                 adv7511);
1111                 if (ret)
1112                         goto err_unregister_cec;
1113         }
1114
1115         /* CEC is unused for now */
1116         regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL,
1117                      ADV7511_CEC_CTRL_POWER_DOWN);
1118
1119         adv7511_power_off(adv7511);
1120
1121         i2c_set_clientdata(i2c, adv7511);
1122
1123         if (adv7511->type == ADV7511)
1124                 adv7511_set_link_config(adv7511, &link_config);
1125
1126         adv7511->bridge.funcs = &adv7511_bridge_funcs;
1127         adv7511->bridge.of_node = dev->of_node;
1128
1129         ret = drm_bridge_add(&adv7511->bridge);
1130         if (ret) {
1131                 dev_err(dev, "failed to add adv7511 bridge\n");
1132                 goto err_unregister_cec;
1133         }
1134
1135         adv7511_audio_init(dev, adv7511);
1136
1137         return 0;
1138
1139 err_unregister_cec:
1140         adv7533_uninit_cec(adv7511);
1141 err_i2c_unregister_edid:
1142         i2c_unregister_device(adv7511->i2c_edid);
1143 uninit_regulators:
1144         adv7511_uninit_regulators(adv7511);
1145
1146         return ret;
1147 }
1148
1149 static int adv7511_remove(struct i2c_client *i2c)
1150 {
1151         struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
1152
1153         if (adv7511->type == ADV7533) {
1154                 adv7533_detach_dsi(adv7511);
1155                 adv7533_uninit_cec(adv7511);
1156         }
1157
1158         adv7511_uninit_regulators(adv7511);
1159
1160         drm_bridge_remove(&adv7511->bridge);
1161
1162         adv7511_audio_exit(adv7511);
1163
1164         i2c_unregister_device(adv7511->i2c_edid);
1165
1166         kfree(adv7511->edid);
1167
1168         return 0;
1169 }
1170
1171 static const struct i2c_device_id adv7511_i2c_ids[] = {
1172         { "adv7511", ADV7511 },
1173         { "adv7511w", ADV7511 },
1174         { "adv7513", ADV7511 },
1175 #ifdef CONFIG_DRM_I2C_ADV7533
1176         { "adv7533", ADV7533 },
1177 #endif
1178         { }
1179 };
1180 MODULE_DEVICE_TABLE(i2c, adv7511_i2c_ids);
1181
1182 static const struct of_device_id adv7511_of_ids[] = {
1183         { .compatible = "adi,adv7511", .data = (void *)ADV7511 },
1184         { .compatible = "adi,adv7511w", .data = (void *)ADV7511 },
1185         { .compatible = "adi,adv7513", .data = (void *)ADV7511 },
1186 #ifdef CONFIG_DRM_I2C_ADV7533
1187         { .compatible = "adi,adv7533", .data = (void *)ADV7533 },
1188 #endif
1189         { }
1190 };
1191 MODULE_DEVICE_TABLE(of, adv7511_of_ids);
1192
1193 static struct mipi_dsi_driver adv7533_dsi_driver = {
1194         .driver.name = "adv7533",
1195 };
1196
1197 static struct i2c_driver adv7511_driver = {
1198         .driver = {
1199                 .name = "adv7511",
1200                 .of_match_table = adv7511_of_ids,
1201         },
1202         .id_table = adv7511_i2c_ids,
1203         .probe = adv7511_probe,
1204         .remove = adv7511_remove,
1205 };
1206
1207 static int __init adv7511_init(void)
1208 {
1209         if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
1210                 mipi_dsi_driver_register(&adv7533_dsi_driver);
1211
1212         return i2c_add_driver(&adv7511_driver);
1213 }
1214 module_init(adv7511_init);
1215
1216 static void __exit adv7511_exit(void)
1217 {
1218         i2c_del_driver(&adv7511_driver);
1219
1220         if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
1221                 mipi_dsi_driver_unregister(&adv7533_dsi_driver);
1222 }
1223 module_exit(adv7511_exit);
1224
1225 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
1226 MODULE_DESCRIPTION("ADV7511 HDMI transmitter driver");
1227 MODULE_LICENSE("GPL");