LXR linux/drivers/gpu/drm/radeon/r600

   1/*
   2 * Copyright 2008 Advanced Micro Devices, Inc.
   3 * Copyright 2008 Red Hat Inc.
   4 * Copyright 2009 Christian König.
   5 *
   6 * Permission is hereby granted, free of charge, to any person obtaining a
   7 * copy of this software and associated documentation files (the "Software"),
   8 * to deal in the Software without restriction, including without limitation
   9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10 * and/or sell copies of the Software, and to permit persons to whom the
  11 * Software is furnished to do so, subject to the following conditions:
  12 *
  13 * The above copyright notice and this permission notice shall be included in
  14 * all copies or substantial portions of the Software.
  15 *
  16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22 * OTHER DEALINGS IN THE SOFTWARE.
  23 *
  24 * Authors: Christian König
  25 */
  26#include <linux/hdmi.h>
  27#include <linux/gcd.h>
  28#include <drm/drmP.h>
  29#include <drm/radeon_drm.h>
  30#include "radeon.h"
  31#include "radeon_asic.h"
  32#include "radeon_audio.h"
  33#include "r600d.h"
  34#include "atom.h"
  35
  36/*
  37 * HDMI color format
  38 */
  39enum r600_hdmi_color_format {
  40        RGB = 0,
  41        YCC_422 = 1,
  42        YCC_444 = 2
  43};
  44
  45/*
  46 * IEC60958 status bits
  47 */
  48enum r600_hdmi_iec_status_bits {
  49        AUDIO_STATUS_DIG_ENABLE   = 0x01,
  50        AUDIO_STATUS_V            = 0x02,
  51        AUDIO_STATUS_VCFG         = 0x04,
  52        AUDIO_STATUS_EMPHASIS     = 0x08,
  53        AUDIO_STATUS_COPYRIGHT    = 0x10,
  54        AUDIO_STATUS_NONAUDIO     = 0x20,
  55        AUDIO_STATUS_PROFESSIONAL = 0x40,
  56        AUDIO_STATUS_LEVEL        = 0x80
  57};
  58
  59static struct r600_audio_pin r600_audio_status(struct radeon_device *rdev)
  60{
  61        struct r600_audio_pin status;
  62        uint32_t value;
  63
  64        value = RREG32(R600_AUDIO_RATE_BPS_CHANNEL);
  65
  66        /* number of channels */
  67        status.channels = (value & 0x7) + 1;
  68
  69        /* bits per sample */
  70        switch ((value & 0xF0) >> 4) {
  71        case 0x0:
  72                status.bits_per_sample = 8;
  73                break;
  74        case 0x1:
  75                status.bits_per_sample = 16;
  76                break;
  77        case 0x2:
  78                status.bits_per_sample = 20;
  79                break;
  80        case 0x3:
  81                status.bits_per_sample = 24;
  82                break;
  83        case 0x4:
  84                status.bits_per_sample = 32;
  85                break;
  86        default:
  87                dev_err(rdev->dev, "Unknown bits per sample 0x%x, using 16\n",
  88                        (int)value);
  89                status.bits_per_sample = 16;
  90        }
  91
  92        /* current sampling rate in HZ */
  93        if (value & 0x4000)
  94                status.rate = 44100;
  95        else
  96                status.rate = 48000;
  97        status.rate *= ((value >> 11) & 0x7) + 1;
  98        status.rate /= ((value >> 8) & 0x7) + 1;
  99
 100        value = RREG32(R600_AUDIO_STATUS_BITS);
 101
 102        /* iec 60958 status bits */
 103        status.status_bits = value & 0xff;
 104
 105        /* iec 60958 category code */
 106        status.category_code = (value >> 8) & 0xff;
 107
 108        return status;
 109}
 110
 111/*
 112 * update all hdmi interfaces with current audio parameters
 113 */
 114void r600_audio_update_hdmi(struct work_struct *work)
 115{
 116        struct radeon_device *rdev = container_of(work, struct radeon_device,
 117                                                  audio_work);
 118        struct drm_device *dev = rdev->ddev;
 119        struct r600_audio_pin audio_status = r600_audio_status(rdev);
 120        struct drm_encoder *encoder;
 121        bool changed = false;
 122
 123        if (rdev->audio.pin[0].channels != audio_status.channels ||
 124            rdev->audio.pin[0].rate != audio_status.rate ||
 125            rdev->audio.pin[0].bits_per_sample != audio_status.bits_per_sample ||
 126            rdev->audio.pin[0].status_bits != audio_status.status_bits ||
 127            rdev->audio.pin[0].category_code != audio_status.category_code) {
 128                rdev->audio.pin[0] = audio_status;
 129                changed = true;
 130        }
 131
 132        list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 133                if (!radeon_encoder_is_digital(encoder))
 134                        continue;
 135                if (changed || r600_hdmi_buffer_status_changed(encoder))
 136                        r600_hdmi_update_audio_settings(encoder);
 137        }
 138}
 139
 140/* enable the audio stream */
 141void r600_audio_enable(struct radeon_device *rdev,
 142                       struct r600_audio_pin *pin,
 143                       u8 enable_mask)
 144{
 145        u32 tmp = RREG32(AZ_HOT_PLUG_CONTROL);
 146
 147        if (!pin)
 148                return;
 149
 150        if (enable_mask) {
 151                tmp |= AUDIO_ENABLED;
 152                if (enable_mask & 1)
 153                        tmp |= PIN0_AUDIO_ENABLED;
 154                if (enable_mask & 2)
 155                        tmp |= PIN1_AUDIO_ENABLED;
 156                if (enable_mask & 4)
 157                        tmp |= PIN2_AUDIO_ENABLED;
 158                if (enable_mask & 8)
 159                        tmp |= PIN3_AUDIO_ENABLED;
 160        } else {
 161                tmp &= ~(AUDIO_ENABLED |
 162                         PIN0_AUDIO_ENABLED |
 163                         PIN1_AUDIO_ENABLED |
 164                         PIN2_AUDIO_ENABLED |
 165                         PIN3_AUDIO_ENABLED);
 166        }
 167
 168        WREG32(AZ_HOT_PLUG_CONTROL, tmp);
 169}
 170
 171struct r600_audio_pin *r600_audio_get_pin(struct radeon_device *rdev)
 172{
 173        /* only one pin on 6xx-NI */
 174        return &rdev->audio.pin[0];
 175}
 176
 177void r600_hdmi_update_acr(struct drm_encoder *encoder, long offset,
 178        const struct radeon_hdmi_acr *acr)
 179{
 180        struct drm_device *dev = encoder->dev;
 181        struct radeon_device *rdev = dev->dev_private;
 182
 183        /* DCE 3.0 uses register that's normally for CRC_CONTROL */
 184        uint32_t acr_ctl = ASIC_IS_DCE3(rdev) ? DCE3_HDMI0_ACR_PACKET_CONTROL :
 185                                       HDMI0_ACR_PACKET_CONTROL;
 186        WREG32_P(acr_ctl + offset,
 187                HDMI0_ACR_SOURCE |              /* select SW CTS value */
 188                HDMI0_ACR_AUTO_SEND,    /* allow hw to sent ACR packets when required */
 189                ~(HDMI0_ACR_SOURCE |
 190                HDMI0_ACR_AUTO_SEND));
 191
 192        WREG32_P(HDMI0_ACR_32_0 + offset,
 193                HDMI0_ACR_CTS_32(acr->cts_32khz),
 194                ~HDMI0_ACR_CTS_32_MASK);
 195        WREG32_P(HDMI0_ACR_32_1 + offset,
 196                HDMI0_ACR_N_32(acr->n_32khz),
 197                ~HDMI0_ACR_N_32_MASK);
 198
 199        WREG32_P(HDMI0_ACR_44_0 + offset,
 200                HDMI0_ACR_CTS_44(acr->cts_44_1khz),
 201                ~HDMI0_ACR_CTS_44_MASK);
 202        WREG32_P(HDMI0_ACR_44_1 + offset,
 203                HDMI0_ACR_N_44(acr->n_44_1khz),
 204                ~HDMI0_ACR_N_44_MASK);
 205
 206        WREG32_P(HDMI0_ACR_48_0 + offset,
 207                HDMI0_ACR_CTS_48(acr->cts_48khz),
 208                ~HDMI0_ACR_CTS_48_MASK);
 209        WREG32_P(HDMI0_ACR_48_1 + offset,
 210                HDMI0_ACR_N_48(acr->n_48khz),
 211                ~HDMI0_ACR_N_48_MASK);
 212}
 213
 214/*
 215 * build a HDMI Video Info Frame
 216 */
 217void r600_set_avi_packet(struct radeon_device *rdev, u32 offset,
 218                         unsigned char *buffer, size_t size)
 219{
 220        uint8_t *frame = buffer + 3;
 221
 222        WREG32(HDMI0_AVI_INFO0 + offset,
 223                frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
 224        WREG32(HDMI0_AVI_INFO1 + offset,
 225                frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x7] << 24));
 226        WREG32(HDMI0_AVI_INFO2 + offset,
 227                frame[0x8] | (frame[0x9] << 8) | (frame[0xA] << 16) | (frame[0xB] << 24));
 228        WREG32(HDMI0_AVI_INFO3 + offset,
 229                frame[0xC] | (frame[0xD] << 8) | (buffer[1] << 24));
 230
 231        WREG32_OR(HDMI0_INFOFRAME_CONTROL1 + offset,
 232                  HDMI0_AVI_INFO_LINE(2));      /* anything other than 0 */
 233
 234        WREG32_OR(HDMI0_INFOFRAME_CONTROL0 + offset,
 235                  HDMI0_AVI_INFO_SEND | /* enable AVI info frames */
 236                  HDMI0_AVI_INFO_CONT); /* send AVI info frames every frame/field */
 237
 238}
 239
 240/*
 241 * build a Audio Info Frame
 242 */
 243static void r600_hdmi_update_audio_infoframe(struct drm_encoder *encoder,
 244                                             const void *buffer, size_t size)
 245{
 246        struct drm_device *dev = encoder->dev;
 247        struct radeon_device *rdev = dev->dev_private;
 248        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 249        struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 250        uint32_t offset = dig->afmt->offset;
 251        const u8 *frame = buffer + 3;
 252
 253        WREG32(HDMI0_AUDIO_INFO0 + offset,
 254                frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
 255        WREG32(HDMI0_AUDIO_INFO1 + offset,
 256                frame[0x4] | (frame[0x5] << 8) | (frame[0x6] << 16) | (frame[0x8] << 24));
 257}
 258
 259/*
 260 * test if audio buffer is filled enough to start playing
 261 */
 262static bool r600_hdmi_is_audio_buffer_filled(struct drm_encoder *encoder)
 263{
 264        struct drm_device *dev = encoder->dev;
 265        struct radeon_device *rdev = dev->dev_private;
 266        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 267        struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 268        uint32_t offset = dig->afmt->offset;
 269
 270        return (RREG32(HDMI0_STATUS + offset) & 0x10) != 0;
 271}
 272
 273/*
 274 * have buffer status changed since last call?
 275 */
 276int r600_hdmi_buffer_status_changed(struct drm_encoder *encoder)
 277{
 278        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 279        struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 280        int status, result;
 281
 282        if (!dig->afmt || !dig->afmt->enabled)
 283                return 0;
 284
 285        status = r600_hdmi_is_audio_buffer_filled(encoder);
 286        result = dig->afmt->last_buffer_filled_status != status;
 287        dig->afmt->last_buffer_filled_status = status;
 288
 289        return result;
 290}
 291
 292/*
 293 * write the audio workaround status to the hardware
 294 */
 295void r600_hdmi_audio_workaround(struct drm_encoder *encoder)
 296{
 297        struct drm_device *dev = encoder->dev;
 298        struct radeon_device *rdev = dev->dev_private;
 299        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 300        struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 301        uint32_t offset = dig->afmt->offset;
 302        bool hdmi_audio_workaround = false; /* FIXME */
 303        u32 value;
 304
 305        if (!hdmi_audio_workaround ||
 306            r600_hdmi_is_audio_buffer_filled(encoder))
 307                value = 0; /* disable workaround */
 308        else
 309                value = HDMI0_AUDIO_TEST_EN; /* enable workaround */
 310        WREG32_P(HDMI0_AUDIO_PACKET_CONTROL + offset,
 311                 value, ~HDMI0_AUDIO_TEST_EN);
 312}
 313
 314void r600_hdmi_audio_set_dto(struct radeon_device *rdev,
 315                             struct radeon_crtc *crtc, unsigned int clock)
 316{
 317        struct radeon_encoder *radeon_encoder;
 318        struct radeon_encoder_atom_dig *dig;
 319
 320        if (!crtc)
 321                return;
 322
 323        radeon_encoder = to_radeon_encoder(crtc->encoder);
 324        dig = radeon_encoder->enc_priv;
 325
 326        if (!dig)
 327                return;
 328
 329        if (dig->dig_encoder == 0) {
 330                WREG32(DCCG_AUDIO_DTO0_PHASE, 24000 * 100);
 331                WREG32(DCCG_AUDIO_DTO0_MODULE, clock * 100);
 332                WREG32(DCCG_AUDIO_DTO_SELECT, 0); /* select DTO0 */
 333        } else {
 334                WREG32(DCCG_AUDIO_DTO1_PHASE, 24000 * 100);
 335                WREG32(DCCG_AUDIO_DTO1_MODULE, clock * 100);
 336                WREG32(DCCG_AUDIO_DTO_SELECT, 1); /* select DTO1 */
 337        }
 338}
 339
 340void r600_set_vbi_packet(struct drm_encoder *encoder, u32 offset)
 341{
 342        struct drm_device *dev = encoder->dev;
 343        struct radeon_device *rdev = dev->dev_private;
 344
 345        WREG32_OR(HDMI0_VBI_PACKET_CONTROL + offset,
 346                HDMI0_NULL_SEND |       /* send null packets when required */
 347                HDMI0_GC_SEND |         /* send general control packets */
 348                HDMI0_GC_CONT);         /* send general control packets every frame */
 349}
 350
 351void r600_set_audio_packet(struct drm_encoder *encoder, u32 offset)
 352{
 353        struct drm_device *dev = encoder->dev;
 354        struct radeon_device *rdev = dev->dev_private;
 355
 356        WREG32_P(HDMI0_AUDIO_PACKET_CONTROL + offset,
 357                HDMI0_AUDIO_SAMPLE_SEND |                       /* send audio packets */
 358                HDMI0_AUDIO_DELAY_EN(1) |                       /* default audio delay */
 359                HDMI0_AUDIO_PACKETS_PER_LINE(3) |       /* should be suffient for all audio modes and small enough for all hblanks */
 360                HDMI0_60958_CS_UPDATE,                          /* allow 60958 channel status fields to be updated */
 361                ~(HDMI0_AUDIO_SAMPLE_SEND |
 362                HDMI0_AUDIO_DELAY_EN_MASK |
 363                HDMI0_AUDIO_PACKETS_PER_LINE_MASK |
 364                HDMI0_60958_CS_UPDATE));
 365
 366        WREG32_OR(HDMI0_INFOFRAME_CONTROL0 + offset,
 367                HDMI0_AUDIO_INFO_SEND |         /* enable audio info frames (frames won't be set until audio is enabled) */
 368                HDMI0_AUDIO_INFO_UPDATE);       /* required for audio info values to be updated */
 369
 370        WREG32_P(HDMI0_INFOFRAME_CONTROL1 + offset,
 371                HDMI0_AUDIO_INFO_LINE(2),       /* anything other than 0 */
 372                ~HDMI0_AUDIO_INFO_LINE_MASK);
 373
 374        WREG32_AND(HDMI0_GENERIC_PACKET_CONTROL + offset,
 375                ~(HDMI0_GENERIC0_SEND |
 376                HDMI0_GENERIC0_CONT |
 377                HDMI0_GENERIC0_UPDATE |
 378                HDMI0_GENERIC1_SEND |
 379                HDMI0_GENERIC1_CONT |
 380                HDMI0_GENERIC0_LINE_MASK |
 381                HDMI0_GENERIC1_LINE_MASK));
 382
 383        WREG32_P(HDMI0_60958_0 + offset,
 384                HDMI0_60958_CS_CHANNEL_NUMBER_L(1),
 385                ~(HDMI0_60958_CS_CHANNEL_NUMBER_L_MASK |
 386                HDMI0_60958_CS_CLOCK_ACCURACY_MASK));
 387
 388        WREG32_P(HDMI0_60958_1 + offset,
 389                HDMI0_60958_CS_CHANNEL_NUMBER_R(2),
 390                ~HDMI0_60958_CS_CHANNEL_NUMBER_R_MASK);
 391}
 392
 393void r600_set_mute(struct drm_encoder *encoder, u32 offset, bool mute)
 394{
 395        struct drm_device *dev = encoder->dev;
 396        struct radeon_device *rdev = dev->dev_private;
 397
 398        if (mute)
 399                WREG32_OR(HDMI0_GC + offset, HDMI0_GC_AVMUTE);
 400        else
 401                WREG32_AND(HDMI0_GC + offset, ~HDMI0_GC_AVMUTE);
 402}
 403
 404/**
 405 * r600_hdmi_update_audio_settings - Update audio infoframe
 406 *
 407 * @encoder: drm encoder
 408 *
 409 * Gets info about current audio stream and updates audio infoframe.
 410 */
 411void r600_hdmi_update_audio_settings(struct drm_encoder *encoder)
 412{
 413        struct drm_device *dev = encoder->dev;
 414        struct radeon_device *rdev = dev->dev_private;
 415        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 416        struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 417        struct r600_audio_pin audio = r600_audio_status(rdev);
 418        uint8_t buffer[HDMI_INFOFRAME_HEADER_SIZE + HDMI_AUDIO_INFOFRAME_SIZE];
 419        struct hdmi_audio_infoframe frame;
 420        uint32_t offset;
 421        uint32_t value;
 422        ssize_t err;
 423
 424        if (!dig->afmt || !dig->afmt->enabled)
 425                return;
 426        offset = dig->afmt->offset;
 427
 428        DRM_DEBUG("%s with %d channels, %d Hz sampling rate, %d bits per sample,\n",
 429                 r600_hdmi_is_audio_buffer_filled(encoder) ? "playing" : "stopped",
 430                  audio.channels, audio.rate, audio.bits_per_sample);
 431        DRM_DEBUG("0x%02X IEC60958 status bits and 0x%02X category code\n",
 432                  (int)audio.status_bits, (int)audio.category_code);
 433
 434        err = hdmi_audio_infoframe_init(&frame);
 435        if (err < 0) {
 436                DRM_ERROR("failed to setup audio infoframe\n");
 437                return;
 438        }
 439
 440        frame.channels = audio.channels;
 441
 442        err = hdmi_audio_infoframe_pack(&frame, buffer, sizeof(buffer));
 443        if (err < 0) {
 444                DRM_ERROR("failed to pack audio infoframe\n");
 445                return;
 446        }
 447
 448        value = RREG32(HDMI0_AUDIO_PACKET_CONTROL + offset);
 449        if (value & HDMI0_AUDIO_TEST_EN)
 450                WREG32(HDMI0_AUDIO_PACKET_CONTROL + offset,
 451                       value & ~HDMI0_AUDIO_TEST_EN);
 452
 453        WREG32_OR(HDMI0_CONTROL + offset,
 454                  HDMI0_ERROR_ACK);
 455
 456        WREG32_AND(HDMI0_INFOFRAME_CONTROL0 + offset,
 457                   ~HDMI0_AUDIO_INFO_SOURCE);
 458
 459        r600_hdmi_update_audio_infoframe(encoder, buffer, sizeof(buffer));
 460
 461        WREG32_OR(HDMI0_INFOFRAME_CONTROL0 + offset,
 462                  HDMI0_AUDIO_INFO_CONT |
 463                  HDMI0_AUDIO_INFO_UPDATE);
 464}
 465
 466/*
 467 * enable the HDMI engine
 468 */
 469void r600_hdmi_enable(struct drm_encoder *encoder, bool enable)
 470{
 471        struct drm_device *dev = encoder->dev;
 472        struct radeon_device *rdev = dev->dev_private;
 473        struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 474        struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 475        u32 hdmi = HDMI0_ERROR_ACK;
 476
 477        if (!dig || !dig->afmt)
 478                return;
 479
 480        /* Older chipsets require setting HDMI and routing manually */
 481        if (!ASIC_IS_DCE3(rdev)) {
 482                if (enable)
 483                        hdmi |= HDMI0_ENABLE;
 484                switch (radeon_encoder->encoder_id) {
 485                case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
 486                        if (enable) {
 487                                WREG32_OR(AVIVO_TMDSA_CNTL, AVIVO_TMDSA_CNTL_HDMI_EN);
 488                                hdmi |= HDMI0_STREAM(HDMI0_STREAM_TMDSA);
 489                        } else {
 490                                WREG32_AND(AVIVO_TMDSA_CNTL, ~AVIVO_TMDSA_CNTL_HDMI_EN);
 491                        }
 492                        break;
 493                case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
 494                        if (enable) {
 495                                WREG32_OR(AVIVO_LVTMA_CNTL, AVIVO_LVTMA_CNTL_HDMI_EN);
 496                                hdmi |= HDMI0_STREAM(HDMI0_STREAM_LVTMA);
 497                        } else {
 498                                WREG32_AND(AVIVO_LVTMA_CNTL, ~AVIVO_LVTMA_CNTL_HDMI_EN);
 499                        }
 500                        break;
 501                case ENCODER_OBJECT_ID_INTERNAL_DDI:
 502                        if (enable) {
 503                                WREG32_OR(DDIA_CNTL, DDIA_HDMI_EN);
 504                                hdmi |= HDMI0_STREAM(HDMI0_STREAM_DDIA);
 505                        } else {
 506                                WREG32_AND(DDIA_CNTL, ~DDIA_HDMI_EN);
 507                        }
 508                        break;
 509                case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1:
 510                        if (enable)
 511                                hdmi |= HDMI0_STREAM(HDMI0_STREAM_DVOA);
 512                        break;
 513                default:
 514                        dev_err(rdev->dev, "Invalid encoder for HDMI: 0x%X\n",
 515                                radeon_encoder->encoder_id);
 516                        break;
 517                }
 518                WREG32(HDMI0_CONTROL + dig->afmt->offset, hdmi);
 519        }
 520
 521        if (rdev->irq.installed) {
 522                /* if irq is available use it */
 523                /* XXX: shouldn't need this on any asics.  Double check DCE2/3 */
 524                if (enable)
 525                        radeon_irq_kms_enable_afmt(rdev, dig->afmt->id);
 526                else
 527                        radeon_irq_kms_disable_afmt(rdev, dig->afmt->id);
 528        }
 529
 530        dig->afmt->enabled = enable;
 531
 532        DRM_DEBUG("%sabling HDMI interface @ 0x%04X for encoder 0x%x\n",
 533                  enable ? "En" : "Dis", dig->afmt->offset, radeon_encoder->encoder_id);
 534}
 535
 536