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
 595         drm_mode_connector_update_edid_property(connector, edid);
 596         count = drm_add_edid_modes(connector, edid);
 597
 598         adv7511_set_config_csc(adv7511, connector, adv7511->rgb);
 599
 600         return count;
 601 }
 602
 603 static enum drm_connector_status
 604 adv7511_detect(struct adv7511 *adv7511, struct drm_connector *connector)
 605 {
 606         enum drm_connector_status status;
 607         unsigned int val;
 608         bool hpd;
 609         int ret;
 610
 611         ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
 612         if (ret < 0)
 613                 return connector_status_disconnected;
 614
 615         if (val & ADV7511_STATUS_HPD)
 616                 status = connector_status_connected;
 617         else
 618                 status = connector_status_disconnected;
 619
 620         hpd = adv7511_hpd(adv7511);
 621
 622         /* The chip resets itself when the cable is disconnected, so in case
 623          * there is a pending HPD interrupt and the cable is connected there was
 624          * at least one transition from disconnected to connected and the chip
 625          * has to be reinitialized. */
 626         if (status == connector_status_connected && hpd && adv7511->powered) {
 627                 regcache_mark_dirty(adv7511->regmap);
 628                 adv7511_power_on(adv7511);
 629                 adv7511_get_modes(adv7511, connector);
 630                 if (adv7511->status == connector_status_connected)
 631                         status = connector_status_disconnected;
 632         } else {
 633                 /* Renable HPD sensing */
 634                 regmap_update_bits(adv7511->regmap, ADV7511_REG_POWER2,
 635                                    ADV7511_REG_POWER2_HPD_SRC_MASK,
 636                                    ADV7511_REG_POWER2_HPD_SRC_BOTH);
 637         }
 638
 639         adv7511->status = status;
 640         return status;
 641 }
 642
 643 static int adv7511_mode_valid(struct adv7511 *adv7511,
 644                               struct drm_display_mode *mode)
 645 {
 646         if (mode->clock > 165000)
 647                 return MODE_CLOCK_HIGH;
 648
 649         return MODE_OK;
 650 }
 651
 652 static void adv7511_mode_set(struct adv7511 *adv7511,
 653                              struct drm_display_mode *mode,
 654                              struct drm_display_mode *adj_mode)
 655 {
 656         unsigned int low_refresh_rate;
 657         unsigned int hsync_polarity = 0;
 658         unsigned int vsync_polarity = 0;
 659
 660         if (adv7511->embedded_sync) {
 661                 unsigned int hsync_offset, hsync_len;
 662                 unsigned int vsync_offset, vsync_len;
 663
 664                 hsync_offset = adj_mode->crtc_hsync_start -
 665                                adj_mode->crtc_hdisplay;
 666                 vsync_offset = adj_mode->crtc_vsync_start -
 667                                adj_mode->crtc_vdisplay;
 668                 hsync_len = adj_mode->crtc_hsync_end -
 669                             adj_mode->crtc_hsync_start;
 670                 vsync_len = adj_mode->crtc_vsync_end -
 671                             adj_mode->crtc_vsync_start;
 672
 673                 /* The hardware vsync generator has a off-by-one bug */
 674                 vsync_offset += 1;
 675
 676                 regmap_write(adv7511->regmap, ADV7511_REG_HSYNC_PLACEMENT_MSB,
 677                              ((hsync_offset >> 10) & 0x7) << 5);
 678                 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(0),
 679                              (hsync_offset >> 2) & 0xff);
 680                 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(1),
 681                              ((hsync_offset & 0x3) << 6) |
 682                              ((hsync_len >> 4) & 0x3f));
 683                 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(2),
 684                              ((hsync_len & 0xf) << 4) |
 685                              ((vsync_offset >> 6) & 0xf));
 686                 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(3),
 687                              ((vsync_offset & 0x3f) << 2) |
 688                              ((vsync_len >> 8) & 0x3));
 689                 regmap_write(adv7511->regmap, ADV7511_REG_SYNC_DECODER(4),
 690                              vsync_len & 0xff);
 691
 692                 hsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PHSYNC);
 693                 vsync_polarity = !(adj_mode->flags & DRM_MODE_FLAG_PVSYNC);
 694         } else {
 695                 enum adv7511_sync_polarity mode_hsync_polarity;
 696                 enum adv7511_sync_polarity mode_vsync_polarity;
 697
 698                 /**
 699                  * If the input signal is always low or always high we want to
 700                  * invert or let it passthrough depending on the polarity of the
 701                  * current mode.
 702                  **/
 703                 if (adj_mode->flags & DRM_MODE_FLAG_NHSYNC)
 704                         mode_hsync_polarity = ADV7511_SYNC_POLARITY_LOW;
 705                 else
 706                         mode_hsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
 707
 708                 if (adj_mode->flags & DRM_MODE_FLAG_NVSYNC)
 709                         mode_vsync_polarity = ADV7511_SYNC_POLARITY_LOW;
 710                 else
 711                         mode_vsync_polarity = ADV7511_SYNC_POLARITY_HIGH;
 712
 713                 if (adv7511->hsync_polarity != mode_hsync_polarity &&
 714                     adv7511->hsync_polarity !=
 715                     ADV7511_SYNC_POLARITY_PASSTHROUGH)
 716                         hsync_polarity = 1;
 717
 718                 if (adv7511->vsync_polarity != mode_vsync_polarity &&
 719                     adv7511->vsync_polarity !=
 720                     ADV7511_SYNC_POLARITY_PASSTHROUGH)
 721                         vsync_polarity = 1;
 722         }
 723
 724         if (mode->vrefresh <= 24000)
 725                 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_24HZ;
 726         else if (mode->vrefresh <= 25000)
 727                 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_25HZ;
 728         else if (mode->vrefresh <= 30000)
 729                 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_30HZ;
 730         else
 731                 low_refresh_rate = ADV7511_LOW_REFRESH_RATE_NONE;
 732
 733         regmap_update_bits(adv7511->regmap, 0xfb,
 734                 0x6, low_refresh_rate << 1);
 735         regmap_update_bits(adv7511->regmap, 0x17,
 736                 0x60, (vsync_polarity << 6) | (hsync_polarity << 5));
 737
 738         if (adv7511->type == ADV7533)
 739                 adv7533_mode_set(adv7511, adj_mode);
 740
 741         drm_mode_copy(&adv7511->curr_mode, adj_mode);
 742
 743         /*
 744          * TODO Test first order 4:2:2 to 4:4:4 up conversion method, which is
 745          * supposed to give better results.
 746          */
 747
 748         adv7511->f_tmds = mode->clock;
 749 }
 750
 751 /* Connector funcs */
 752 static struct adv7511 *connector_to_adv7511(struct drm_connector *connector)
 753 {
 754         return container_of(connector, struct adv7511, connector);
 755 }
 756
 757 static int adv7511_connector_get_modes(struct drm_connector *connector)
 758 {
 759         struct adv7511 *adv = connector_to_adv7511(connector);
 760
 761         return adv7511_get_modes(adv, connector);
 762 }
 763
 764 static enum drm_mode_status
 765 adv7511_connector_mode_valid(struct drm_connector *connector,
 766                              struct drm_display_mode *mode)
 767 {
 768         struct adv7511 *adv = connector_to_adv7511(connector);
 769
 770         return adv7511_mode_valid(adv, mode);
 771 }
 772
 773 static struct drm_connector_helper_funcs adv7511_connector_helper_funcs = {
 774         .get_modes = adv7511_connector_get_modes,
 775         .mode_valid = adv7511_connector_mode_valid,
 776 };
 777
 778 static enum drm_connector_status
 779 adv7511_connector_detect(struct drm_connector *connector, bool force)
 780 {
 781         struct adv7511 *adv = connector_to_adv7511(connector);
 782
 783         return adv7511_detect(adv, connector);
 784 }
 785
 786 static const struct drm_connector_funcs adv7511_connector_funcs = {
 787         .fill_modes = drm_helper_probe_single_connector_modes,
 788         .detect = adv7511_connector_detect,
 789         .destroy = drm_connector_cleanup,
 790         .reset = drm_atomic_helper_connector_reset,
 791         .atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
 792         .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
 793 };
 794
 795 /* Bridge funcs */
 796 static struct adv7511 *bridge_to_adv7511(struct drm_bridge *bridge)
 797 {
 798         return container_of(bridge, struct adv7511, bridge);
 799 }
 800
 801 static void adv7511_bridge_enable(struct drm_bridge *bridge)
 802 {
 803         struct adv7511 *adv = bridge_to_adv7511(bridge);
 804
 805         adv7511_power_on(adv);
 806 }
 807
 808 static void adv7511_bridge_disable(struct drm_bridge *bridge)
 809 {
 810         struct adv7511 *adv = bridge_to_adv7511(bridge);
 811
 812         adv7511_power_off(adv);
 813 }
 814
 815 static void adv7511_bridge_mode_set(struct drm_bridge *bridge,
 816                                     struct drm_display_mode *mode,
 817                                     struct drm_display_mode *adj_mode)
 818 {
 819         struct adv7511 *adv = bridge_to_adv7511(bridge);
 820
 821         adv7511_mode_set(adv, mode, adj_mode);
 822 }
 823
 824 static int adv7511_bridge_attach(struct drm_bridge *bridge)
 825 {
 826         struct adv7511 *adv = bridge_to_adv7511(bridge);
 827         int ret;
 828
 829         if (!bridge->encoder) {
 830                 DRM_ERROR("Parent encoder object not found");
 831                 return -ENODEV;
 832         }
 833
 834         adv->connector.polled = DRM_CONNECTOR_POLL_HPD;
 835
 836         ret = drm_connector_init(bridge->dev, &adv->connector,
 837                                  &adv7511_connector_funcs,
 838                                  DRM_MODE_CONNECTOR_HDMIA);
 839         if (ret) {
 840                 DRM_ERROR("Failed to initialize connector with drm\n");
 841                 return ret;
 842         }
 843         drm_connector_helper_add(&adv->connector,
 844                                  &adv7511_connector_helper_funcs);
 845         drm_mode_connector_attach_encoder(&adv->connector, bridge->encoder);
 846
 847         if (adv->type == ADV7533)
 848                 ret = adv7533_attach_dsi(adv);
 849
 850         if (adv->i2c_main->irq)
 851                 regmap_write(adv->regmap, ADV7511_REG_INT_ENABLE(0),
 852                              ADV7511_INT0_HPD);
 853
 854         return ret;
 855 }
 856
 857 static const struct drm_bridge_funcs adv7511_bridge_funcs = {
 858         .enable = adv7511_bridge_enable,
 859         .disable = adv7511_bridge_disable,
 860         .mode_set = adv7511_bridge_mode_set,
 861         .attach = adv7511_bridge_attach,
 862 };
 863
 864 /* -----------------------------------------------------------------------------
 865  * Probe & remove
 866  */
 867
 868 static const char * const adv7511_supply_names[] = {
 869         "avdd",
 870         "dvdd",
 871         "pvdd",
 872         "bgvdd",
 873         "dvdd-3v",
 874 };
 875
 876 static const char * const adv7533_supply_names[] = {
 877         "avdd",
 878         "dvdd",
 879         "pvdd",
 880         "a2vdd",
 881         "v3p3",
 882         "v1p2",
 883 };
 884
 885 static int adv7511_init_regulators(struct adv7511 *adv)
 886 {
 887         struct device *dev = &adv->i2c_main->dev;
 888         const char * const *supply_names;
 889         unsigned int i;
 890         int ret;
 891
 892         if (adv->type == ADV7511) {
 893                 supply_names = adv7511_supply_names;
 894                 adv->num_supplies = ARRAY_SIZE(adv7511_supply_names);
 895         } else {
 896                 supply_names = adv7533_supply_names;
 897                 adv->num_supplies = ARRAY_SIZE(adv7533_supply_names);
 898         }
 899
 900         adv->supplies = devm_kcalloc(dev, adv->num_supplies,
 901                                      sizeof(*adv->supplies), GFP_KERNEL);
 902         if (!adv->supplies)
 903                 return -ENOMEM;
 904
 905         for (i = 0; i < adv->num_supplies; i++)
 906                 adv->supplies[i].supply = supply_names[i];
 907
 908         ret = devm_regulator_bulk_get(dev, adv->num_supplies, adv->supplies);
 909         if (ret)
 910                 return ret;
 911
 912         return regulator_bulk_enable(adv->num_supplies, adv->supplies);
 913 }
 914
 915 static void adv7511_uninit_regulators(struct adv7511 *adv)
 916 {
 917         regulator_bulk_disable(adv->num_supplies, adv->supplies);
 918 }
 919
 920 static int adv7511_parse_dt(struct device_node *np,
 921                             struct adv7511_link_config *config)
 922 {
 923         const char *str;
 924         int ret;
 925
 926         of_property_read_u32(np, "adi,input-depth", &config->input_color_depth);
 927         if (config->input_color_depth != 8 && config->input_color_depth != 10 &&
 928             config->input_color_depth != 12)
 929                 return -EINVAL;
 930
 931         ret = of_property_read_string(np, "adi,input-colorspace", &str);
 932         if (ret < 0)
 933                 return ret;
 934
 935         if (!strcmp(str, "rgb"))
 936                 config->input_colorspace = HDMI_COLORSPACE_RGB;
 937         else if (!strcmp(str, "yuv422"))
 938                 config->input_colorspace = HDMI_COLORSPACE_YUV422;
 939         else if (!strcmp(str, "yuv444"))
 940                 config->input_colorspace = HDMI_COLORSPACE_YUV444;
 941         else
 942                 return -EINVAL;
 943
 944         ret = of_property_read_string(np, "adi,input-clock", &str);
 945         if (ret < 0)
 946                 return ret;
 947
 948         if (!strcmp(str, "1x"))
 949                 config->input_clock = ADV7511_INPUT_CLOCK_1X;
 950         else if (!strcmp(str, "2x"))
 951                 config->input_clock = ADV7511_INPUT_CLOCK_2X;
 952         else if (!strcmp(str, "ddr"))
 953                 config->input_clock = ADV7511_INPUT_CLOCK_DDR;
 954         else
 955                 return -EINVAL;
 956
 957         if (config->input_colorspace == HDMI_COLORSPACE_YUV422 ||
 958             config->input_clock != ADV7511_INPUT_CLOCK_1X) {
 959                 ret = of_property_read_u32(np, "adi,input-style",
 960                                            &config->input_style);
 961                 if (ret)
 962                         return ret;
 963
 964                 if (config->input_style < 1 || config->input_style > 3)
 965                         return -EINVAL;
 966
 967                 ret = of_property_read_string(np, "adi,input-justification",
 968                                               &str);
 969                 if (ret < 0)
 970                         return ret;
 971
 972                 if (!strcmp(str, "left"))
 973                         config->input_justification =
 974                                 ADV7511_INPUT_JUSTIFICATION_LEFT;
 975                 else if (!strcmp(str, "evenly"))
 976                         config->input_justification =
 977                                 ADV7511_INPUT_JUSTIFICATION_EVENLY;
 978                 else if (!strcmp(str, "right"))
 979                         config->input_justification =
 980                                 ADV7511_INPUT_JUSTIFICATION_RIGHT;
 981                 else
 982                         return -EINVAL;
 983
 984         } else {
 985                 config->input_style = 1;
 986                 config->input_justification = ADV7511_INPUT_JUSTIFICATION_LEFT;
 987         }
 988
 989         of_property_read_u32(np, "adi,clock-delay", &config->clock_delay);
 990         if (config->clock_delay < -1200 || config->clock_delay > 1600)
 991                 return -EINVAL;
 992
 993         config->embedded_sync = of_property_read_bool(np, "adi,embedded-sync");
 994
 995         /* Hardcode the sync pulse configurations for now. */
 996         config->sync_pulse = ADV7511_INPUT_SYNC_PULSE_NONE;
 997         config->vsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
 998         config->hsync_polarity = ADV7511_SYNC_POLARITY_PASSTHROUGH;
 999
1000         return 0;
1001 }
1002
1003 static int adv7511_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
1004 {
1005         struct adv7511_link_config link_config;
1006         struct adv7511 *adv7511;
1007         struct device *dev = &i2c->dev;
1008         unsigned int main_i2c_addr = i2c->addr << 1;
1009         unsigned int edid_i2c_addr = main_i2c_addr + 4;
1010         unsigned int val;
1011         int ret;
1012
1013         if (!dev->of_node)
1014                 return -EINVAL;
1015
1016         adv7511 = devm_kzalloc(dev, sizeof(*adv7511), GFP_KERNEL);
1017         if (!adv7511)
1018                 return -ENOMEM;
1019
1020         adv7511->i2c_main = i2c;
1021         adv7511->powered = false;
1022         adv7511->status = connector_status_disconnected;
1023
1024         if (dev->of_node)
1025                 adv7511->type = (enum adv7511_type)of_device_get_match_data(dev);
1026         else
1027                 adv7511->type = id->driver_data;
1028
1029         memset(&link_config, 0, sizeof(link_config));
1030
1031         if (adv7511->type == ADV7511)
1032                 ret = adv7511_parse_dt(dev->of_node, &link_config);
1033         else
1034                 ret = adv7533_parse_dt(dev->of_node, adv7511);
1035         if (ret)
1036                 return ret;
1037
1038         ret = adv7511_init_regulators(adv7511);
1039         if (ret) {
1040                 dev_err(dev, "failed to init regulators\n");
1041                 return ret;
1042         }
1043
1044         /*
1045          * The power down GPIO is optional. If present, toggle it from active to
1046          * inactive to wake up the encoder.
1047          */
1048         adv7511->gpio_pd = devm_gpiod_get_optional(dev, "pd", GPIOD_OUT_HIGH);
1049         if (IS_ERR(adv7511->gpio_pd)) {
1050                 ret = PTR_ERR(adv7511->gpio_pd);
1051                 goto uninit_regulators;
1052         }
1053
1054         if (adv7511->gpio_pd) {
1055                 mdelay(5);
1056                 gpiod_set_value_cansleep(adv7511->gpio_pd, 0);
1057         }
1058
1059         adv7511->regmap = devm_regmap_init_i2c(i2c, &adv7511_regmap_config);
1060         if (IS_ERR(adv7511->regmap)) {
1061                 ret = PTR_ERR(adv7511->regmap);
1062                 goto uninit_regulators;
1063         }
1064
1065         ret = regmap_read(adv7511->regmap, ADV7511_REG_CHIP_REVISION, &val);
1066         if (ret)
1067                 goto uninit_regulators;
1068         dev_dbg(dev, "Rev. %d\n", val);
1069
1070         if (adv7511->type == ADV7511)
1071                 ret = regmap_register_patch(adv7511->regmap,
1072                                             adv7511_fixed_registers,
1073                                             ARRAY_SIZE(adv7511_fixed_registers));
1074         else
1075                 ret = adv7533_patch_registers(adv7511);
1076         if (ret)
1077                 goto uninit_regulators;
1078
1079         regmap_write(adv7511->regmap, ADV7511_REG_EDID_I2C_ADDR, edid_i2c_addr);
1080         regmap_write(adv7511->regmap, ADV7511_REG_PACKET_I2C_ADDR,
1081                      main_i2c_addr - 0xa);
1082         regmap_write(adv7511->regmap, ADV7511_REG_CEC_I2C_ADDR,
1083                      main_i2c_addr - 2);
1084
1085         adv7511_packet_disable(adv7511, 0xffff);
1086
1087         adv7511->i2c_edid = i2c_new_dummy(i2c->adapter, edid_i2c_addr >> 1);
1088         if (!adv7511->i2c_edid) {
1089                 ret = -ENOMEM;
1090                 goto uninit_regulators;
1091         }
1092
1093         if (adv7511->type == ADV7533) {
1094                 ret = adv7533_init_cec(adv7511);
1095                 if (ret)
1096                         goto err_i2c_unregister_edid;
1097         }
1098
1099         INIT_WORK(&adv7511->hpd_work, adv7511_hpd_work);
1100
1101         if (i2c->irq) {
1102                 init_waitqueue_head(&adv7511->wq);
1103
1104                 ret = devm_request_threaded_irq(dev, i2c->irq, NULL,
1105                                                 adv7511_irq_handler,
1106                                                 IRQF_ONESHOT, dev_name(dev),
1107                                                 adv7511);
1108                 if (ret)
1109                         goto err_unregister_cec;
1110         }
1111
1112         /* CEC is unused for now */
1113         regmap_write(adv7511->regmap, ADV7511_REG_CEC_CTRL,
1114                      ADV7511_CEC_CTRL_POWER_DOWN);
1115
1116         adv7511_power_off(adv7511);
1117
1118         i2c_set_clientdata(i2c, adv7511);
1119
1120         if (adv7511->type == ADV7511)
1121                 adv7511_set_link_config(adv7511, &link_config);
1122
1123         adv7511->bridge.funcs = &adv7511_bridge_funcs;
1124         adv7511->bridge.of_node = dev->of_node;
1125
1126         drm_bridge_add(&adv7511->bridge);
1127
1128         adv7511_audio_init(dev, adv7511);
1129
1130         return 0;
1131
1132 err_unregister_cec:
1133         adv7533_uninit_cec(adv7511);
1134 err_i2c_unregister_edid:
1135         i2c_unregister_device(adv7511->i2c_edid);
1136 uninit_regulators:
1137         adv7511_uninit_regulators(adv7511);
1138
1139         return ret;
1140 }
1141
1142 static int adv7511_remove(struct i2c_client *i2c)
1143 {
1144         struct adv7511 *adv7511 = i2c_get_clientdata(i2c);
1145
1146         if (adv7511->type == ADV7533) {
1147                 adv7533_detach_dsi(adv7511);
1148                 adv7533_uninit_cec(adv7511);
1149         }
1150
1151         adv7511_uninit_regulators(adv7511);
1152
1153         drm_bridge_remove(&adv7511->bridge);
1154
1155         adv7511_audio_exit(adv7511);
1156
1157         i2c_unregister_device(adv7511->i2c_edid);
1158
1159         kfree(adv7511->edid);
1160
1161         return 0;
1162 }
1163
1164 static const struct i2c_device_id adv7511_i2c_ids[] = {
1165         { "adv7511", ADV7511 },
1166         { "adv7511w", ADV7511 },
1167         { "adv7513", ADV7511 },
1168 #ifdef CONFIG_DRM_I2C_ADV7533
1169         { "adv7533", ADV7533 },
1170 #endif
1171         { }
1172 };
1173 MODULE_DEVICE_TABLE(i2c, adv7511_i2c_ids);
1174
1175 static const struct of_device_id adv7511_of_ids[] = {
1176         { .compatible = "adi,adv7511", .data = (void *)ADV7511 },
1177         { .compatible = "adi,adv7511w", .data = (void *)ADV7511 },
1178         { .compatible = "adi,adv7513", .data = (void *)ADV7511 },
1179 #ifdef CONFIG_DRM_I2C_ADV7533
1180         { .compatible = "adi,adv7533", .data = (void *)ADV7533 },
1181 #endif
1182         { }
1183 };
1184 MODULE_DEVICE_TABLE(of, adv7511_of_ids);
1185
1186 static struct mipi_dsi_driver adv7533_dsi_driver = {
1187         .driver.name = "adv7533",
1188 };
1189
1190 static struct i2c_driver adv7511_driver = {
1191         .driver = {
1192                 .name = "adv7511",
1193                 .of_match_table = adv7511_of_ids,
1194         },
1195         .id_table = adv7511_i2c_ids,
1196         .probe = adv7511_probe,
1197         .remove = adv7511_remove,
1198 };
1199
1200 static int __init adv7511_init(void)
1201 {
1202         if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
1203                 mipi_dsi_driver_register(&adv7533_dsi_driver);
1204
1205         return i2c_add_driver(&adv7511_driver);
1206 }
1207 module_init(adv7511_init);
1208
1209 static void __exit adv7511_exit(void)
1210 {
1211         i2c_del_driver(&adv7511_driver);
1212
1213         if (IS_ENABLED(CONFIG_DRM_MIPI_DSI))
1214                 mipi_dsi_driver_unregister(&adv7533_dsi_driver);
1215 }
1216 module_exit(adv7511_exit);
1217
1218 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
1219 MODULE_DESCRIPTION("ADV7511 HDMI transmitter driver");
1220 MODULE_LICENSE("GPL");