drivers/video/rockchip/hdmi/rockchip-hdmi-core.c

   1 #include <linux/delay.h>
   2 #include "rockchip-hdmi.h"
   3 #include "rockchip-hdmi-cec.h"
   4
   5 struct hdmi_delayed_work {
   6         struct delayed_work work;
   7         struct hdmi *hdmi;
   8         int event;
   9         void *data;
  10 };
  11
  12 struct hdmi_id_ref_info {
  13         struct hdmi *hdmi;
  14         int id;
  15         int ref;
  16 } ref_info[HDMI_MAX_ID];
  17
  18 static int uboot_vic;
  19 static void hdmi_work_queue(struct work_struct *work);
  20
  21 struct delayed_work *hdmi_submit_work(struct hdmi *hdmi,
  22                                       int event, int delay, void *data)
  23 {
  24         struct hdmi_delayed_work *work;
  25
  26         DBG("%s event %04x delay %d", __func__, event, delay);
  27
  28         work = kmalloc(sizeof(*work), GFP_ATOMIC);
  29
  30         if (work) {
  31                 INIT_DELAYED_WORK(&work->work, hdmi_work_queue);
  32                 work->hdmi = hdmi;
  33                 work->event = event;
  34                 work->data = data;
  35                 queue_delayed_work(hdmi->workqueue,
  36                                    &work->work,
  37                                    msecs_to_jiffies(delay));
  38         } else {
  39                 pr_warn("HDMI: Cannot allocate memory to create work\n");
  40                 return 0;
  41         }
  42
  43         return &work->work;
  44 }
  45
  46 static void hdmi_send_uevent(struct hdmi *hdmi, int uevent)
  47 {
  48         char *envp[3];
  49
  50         envp[0] = "INTERFACE=HDMI";
  51         envp[1] = kmalloc(32, GFP_KERNEL);
  52         if (envp[1] == NULL)
  53                 return;
  54         sprintf(envp[1], "SCREEN=%d", hdmi->ddev->property);
  55         envp[2] = NULL;
  56         kobject_uevent_env(&hdmi->ddev->dev->kobj, uevent, envp);
  57         kfree(envp[1]);
  58 }
  59
  60 static inline void hdmi_wq_set_output(struct hdmi *hdmi, int mute)
  61 {
  62         DBG("%s mute %d", __func__, mute);
  63         if (hdmi->ops->setmute)
  64                 hdmi->ops->setmute(hdmi, mute);
  65 }
  66
  67 static inline void hdmi_wq_set_audio(struct hdmi *hdmi)
  68 {
  69         DBG("%s", __func__);
  70         if (hdmi->ops->setaudio)
  71                 hdmi->ops->setaudio(hdmi, &hdmi->audio);
  72 }
  73
  74 static void hdmi_wq_set_video(struct hdmi *hdmi)
  75 {
  76         struct hdmi_video       video;
  77
  78         DBG("%s", __func__);
  79
  80         video.vic = hdmi->vic & HDMI_VIC_MASK;
  81         video.sink_hdmi = hdmi->edid.sink_hdmi;
  82         video.format_3d = hdmi->mode_3d;
  83         /* For DVI, output RGB */
  84         if (hdmi->edid.sink_hdmi == 0) {
  85                 video.color_output = HDMI_COLOR_RGB_0_255;
  86         } else {
  87                 if (hdmi->colormode == HDMI_COLOR_AUTO) {
  88                         if (hdmi->edid.ycbcr444)
  89                                 video.color_output = HDMI_COLOR_YCBCR444;
  90                         else if (hdmi->edid.ycbcr422)
  91                                 video.color_output = HDMI_COLOR_YCBCR422;
  92                         else
  93                                 video.color_output = HDMI_COLOR_RGB_16_235;
  94                 } else {
  95                         video.color_output = hdmi->colormode;
  96                 }
  97         }
  98         if ((hdmi->property->feature & SUPPORT_DEEP_10BIT) &&
  99             (hdmi->edid.deepcolor & HDMI_DEEP_COLOR_30BITS)) {
 100                 if (hdmi->colordepth == HDMI_DEPP_COLOR_AUTO ||
 101                     hdmi->colordepth == 10)
 102                         video.color_output_depth = 10;
 103         } else {
 104                 video.color_output_depth = 8;
 105         }
 106         if (hdmi->vic & HDMI_VIDEO_YUV420)
 107                 video.color_output = HDMI_COLOR_YCBCR420;
 108         pr_info("hdmi output corlor mode is %d\n", video.color_output);
 109         video.color_input = HDMI_COLOR_RGB_0_255;
 110         if (hdmi->property->feature & SUPPORT_YCBCR_INPUT) {
 111                 if (video.color_output == HDMI_COLOR_YCBCR444 ||
 112                     video.color_output == HDMI_COLOR_YCBCR422)
 113                         video.color_input = HDMI_COLOR_YCBCR444;
 114                 else if (video.color_output == HDMI_COLOR_YCBCR420)
 115                         video.color_input = HDMI_COLOR_YCBCR420;
 116         }
 117         hdmi->colormode_input = video.color_input;
 118         hdmi_set_lcdc(hdmi);
 119         if (hdmi->ops->setvideo)
 120                 hdmi->ops->setvideo(hdmi, &video);
 121 }
 122
 123 static void hdmi_wq_parse_edid(struct hdmi *hdmi)
 124 {
 125         struct hdmi_edid *pedid;
 126         unsigned char *buff = NULL;
 127         int rc = HDMI_ERROR_SUCESS, extendblock = 0, i, trytimes;
 128
 129         if (hdmi == NULL)
 130                 return;
 131
 132         DBG("%s", __func__);
 133
 134         pedid = &(hdmi->edid);
 135         fb_destroy_modelist(&pedid->modelist);
 136         memset(pedid, 0, sizeof(struct hdmi_edid));
 137         INIT_LIST_HEAD(&pedid->modelist);
 138
 139         buff = kmalloc(HDMI_EDID_BLOCK_SIZE, GFP_KERNEL);
 140         if (buff == NULL) {
 141                 dev_err(hdmi->dev,
 142                         "[%s] can not allocate memory for edid buff.\n",
 143                         __func__);
 144                 rc = HDMI_ERROR_FALSE;
 145                 goto out;
 146         }
 147
 148         if (hdmi->ops->getedid == NULL) {
 149                 rc = HDMI_ERROR_FALSE;
 150                 goto out;
 151         }
 152
 153         /* Read base block edid.*/
 154         for (trytimes = 0; trytimes < 3; trytimes++) {
 155                 if (trytimes)
 156                         msleep(50);
 157                 memset(buff, 0 , HDMI_EDID_BLOCK_SIZE);
 158                 rc = hdmi->ops->getedid(hdmi, 0, buff);
 159                 if (rc) {
 160                         dev_err(hdmi->dev,
 161                                 "[HDMI] read edid base block error\n");
 162                         continue;
 163                 }
 164
 165                 rc = hdmi_edid_parse_base(buff, &extendblock, pedid);
 166                 if (rc) {
 167                         dev_err(hdmi->dev,
 168                                 "[HDMI] parse edid base block error\n");
 169                         continue;
 170                 }
 171                 if (!rc)
 172                         break;
 173         }
 174         if (rc)
 175                 goto out;
 176
 177         for (i = 1; i < extendblock + 1; i++) {
 178                 for (trytimes = 0; trytimes < 3; trytimes++) {
 179                         if (trytimes)
 180                                 msleep(20);
 181                         memset(buff, 0 , HDMI_EDID_BLOCK_SIZE);
 182                         rc = hdmi->ops->getedid(hdmi, i, buff);
 183                         if (rc) {
 184                                 dev_err(hdmi->dev,
 185                                         "[HDMI] read edid block %d error\n",
 186                                         i);
 187                                 continue;
 188                         }
 189
 190                         rc = hdmi_edid_parse_extensions(buff, pedid);
 191                         if (rc) {
 192                                 dev_err(hdmi->dev,
 193                                         "[HDMI] parse edid block %d error\n",
 194                                         i);
 195                                 continue;
 196                         }
 197
 198                         if (!rc)
 199                                 break;
 200                 }
 201         }
 202 out:
 203         kfree(buff);
 204         rc = hdmi_ouputmode_select(hdmi, rc);
 205 }
 206
 207 static void hdmi_wq_insert(struct hdmi *hdmi)
 208 {
 209         DBG("%s", __func__);
 210         if (hdmi->ops->insert)
 211                 hdmi->ops->insert(hdmi);
 212         hdmi_wq_parse_edid(hdmi);
 213         if (hdmi->property->feature & SUPPORT_CEC)
 214                 rockchip_hdmi_cec_set_pa(hdmi->edid.cecaddress);
 215         hdmi_send_uevent(hdmi, KOBJ_ADD);
 216         if (hdmi->enable) {
 217                 /*hdmi->autoset = 0;*/
 218                 hdmi_wq_set_video(hdmi);
 219                 #ifdef CONFIG_SWITCH
 220                 switch_set_state(&(hdmi->switchdev), 1);
 221                 #endif
 222                 hdmi_wq_set_audio(hdmi);
 223                 hdmi_wq_set_output(hdmi, hdmi->mute);
 224                 if (hdmi->ops->hdcp_cb)
 225                         hdmi->ops->hdcp_cb(hdmi);
 226                 if (hdmi->ops->setcec)
 227                         hdmi->ops->setcec(hdmi);
 228         }
 229         if (hdmi->uboot)
 230                 hdmi->uboot = 0;
 231 }
 232
 233 static void hdmi_wq_remove(struct hdmi *hdmi)
 234 {
 235         struct list_head *pos, *n;
 236         struct rk_screen screen;
 237
 238         DBG("%s", __func__);
 239         if (hdmi->ops->remove)
 240                 hdmi->ops->remove(hdmi);
 241         if (hdmi->hotplug == HDMI_HPD_ACTIVED) {
 242                 screen.type = SCREEN_HDMI;
 243                 rk_fb_switch_screen(&screen, 0, hdmi->lcdc->id);
 244         }
 245         #ifdef CONFIG_SWITCH
 246         switch_set_state(&(hdmi->switchdev), 0);
 247         #endif
 248         list_for_each_safe(pos, n, &hdmi->edid.modelist) {
 249                 list_del(pos);
 250                 kfree(pos);
 251         }
 252         kfree(hdmi->edid.audio);
 253         if (hdmi->edid.specs) {
 254                 kfree(hdmi->edid.specs->modedb);
 255                 kfree(hdmi->edid.specs);
 256         }
 257         memset(&hdmi->edid, 0, sizeof(struct hdmi_edid));
 258         hdmi_init_modelist(hdmi);
 259         hdmi->mute      = HDMI_AV_UNMUTE;
 260         hdmi->mode_3d = HDMI_3D_NONE;
 261         hdmi->uboot = 0;
 262         hdmi->hotplug = HDMI_HPD_REMOVED;
 263         hdmi_send_uevent(hdmi, KOBJ_REMOVE);
 264 }
 265
 266 static void hdmi_work_queue(struct work_struct *work)
 267 {
 268         struct hdmi_delayed_work *hdmi_w =
 269                 container_of(work, struct hdmi_delayed_work, work.work);
 270         struct hdmi *hdmi = hdmi_w->hdmi;
 271         int event = hdmi_w->event;
 272         int hpd = HDMI_HPD_REMOVED;
 273
 274         mutex_lock(&hdmi->lock);
 275
 276         DBG("\nhdmi_work_queue() - evt= %x %d\n",
 277             (event & 0xFF00) >> 8,
 278             event & 0xFF);
 279
 280         switch (event) {
 281         case HDMI_ENABLE_CTL:
 282                 if (!hdmi->enable) {
 283                         hdmi->enable = 1;
 284                         if (!hdmi->sleep) {
 285                                 if (hdmi->ops->enable)
 286                                         hdmi->ops->enable(hdmi);
 287                                 if (hdmi->hotplug == HDMI_HPD_ACTIVED)
 288                                         hdmi_wq_insert(hdmi);
 289                         }
 290                 }
 291                 break;
 292         case HDMI_RESUME_CTL:
 293                 if (hdmi->sleep) {
 294                         if (hdmi->ops->enable)
 295                                 hdmi->ops->enable(hdmi);
 296                         hdmi->sleep = 0;
 297                 }
 298                 break;
 299         case HDMI_DISABLE_CTL:
 300                 if (hdmi->enable) {
 301                         if (!hdmi->sleep) {
 302                                 if (hdmi->ops->disable)
 303                                         hdmi->ops->disable(hdmi);
 304                                 hdmi_wq_remove(hdmi);
 305                         }
 306                         hdmi->enable = 0;
 307                 }
 308                 break;
 309         case HDMI_SUSPEND_CTL:
 310                 if (!hdmi->sleep) {
 311                         hdmi_wq_set_output(hdmi,
 312                                            HDMI_VIDEO_MUTE | HDMI_AUDIO_MUTE);
 313                         if (hdmi->ops->disable)
 314                                 hdmi->ops->disable(hdmi);
 315                         if (hdmi->enable)
 316                                 hdmi_wq_remove(hdmi);
 317                         hdmi->sleep = 1;
 318                 }
 319                 break;
 320         case HDMI_HPD_CHANGE:
 321                 if (hdmi->ops->getstatus)
 322                         hpd = hdmi->ops->getstatus(hdmi);
 323                 DBG("hdmi_work_queue() - hpd is %d hotplug is %d",
 324                     hpd, hdmi->hotplug);
 325                 if (hpd != hdmi->hotplug) {
 326                         if (hpd == HDMI_HPD_ACTIVED) {
 327                                 hdmi->hotplug = hpd;
 328                                 hdmi_wq_insert(hdmi);
 329                         } else if (hdmi->hotplug == HDMI_HPD_ACTIVED) {
 330                                 hdmi_wq_remove(hdmi);
 331                         }
 332                         hdmi->hotplug = hpd;
 333                 }
 334                 break;
 335         case HDMI_SET_VIDEO:
 336                 if (hdmi->enable && !hdmi->sleep) {
 337                         hdmi_wq_set_output(hdmi,
 338                                            HDMI_VIDEO_MUTE | HDMI_AUDIO_MUTE);
 339                         if (rk_fb_get_display_policy() == DISPLAY_POLICY_BOX)
 340                                 msleep(2000);
 341                         else
 342                                 msleep(1000);
 343                         hdmi_wq_set_video(hdmi);
 344                         hdmi_send_uevent(hdmi, KOBJ_CHANGE);
 345                         hdmi_wq_set_audio(hdmi);
 346                         hdmi_wq_set_output(hdmi, hdmi->mute);
 347                         if (hdmi->ops->hdcp_cb)
 348                                 hdmi->ops->hdcp_cb(hdmi);
 349                 }
 350                 break;
 351         case HDMI_SET_AUDIO:
 352                 if ((hdmi->mute & HDMI_AUDIO_MUTE) == 0 &&
 353                     hdmi->enable && !hdmi->sleep) {
 354                         hdmi_wq_set_output(hdmi, HDMI_AUDIO_MUTE);
 355                         hdmi_wq_set_audio(hdmi);
 356                         hdmi_wq_set_output(hdmi, hdmi->mute);
 357                 }
 358                 break;
 359         case HDMI_MUTE_AUDIO:
 360         case HDMI_UNMUTE_AUDIO:
 361                 if (hdmi->mute & HDMI_AUDIO_MUTE ||
 362                     !hdmi->enable || hdmi->sleep ||
 363                     hdmi->hotplug != HDMI_HPD_ACTIVED)
 364                         break;
 365                 if (event == HDMI_MUTE_AUDIO)
 366                         hdmi_wq_set_output(hdmi, hdmi->mute |
 367                                            HDMI_AUDIO_MUTE);
 368                 else
 369                         hdmi_wq_set_output(hdmi,
 370                                            hdmi->mute & (~HDMI_AUDIO_MUTE));
 371                 break;
 372         case HDMI_SET_3D:
 373                 if (hdmi->ops->setvsi) {
 374                         if (hdmi->mode_3d != HDMI_3D_NONE)
 375                                 hdmi->ops->setvsi(hdmi, hdmi->mode_3d,
 376                                                   HDMI_VIDEO_FORMAT_3D);
 377                         else if ((hdmi->vic & HDMI_TYPE_MASK) == 0)
 378                                 hdmi->ops->setvsi(hdmi, hdmi->vic,
 379                                                   HDMI_VIDEO_FORMAT_NORMAL);
 380                 }
 381                 break;
 382         case HDMI_SET_COLOR:
 383                 hdmi_wq_set_output(hdmi,
 384                                    HDMI_VIDEO_MUTE | HDMI_AUDIO_MUTE);
 385                 msleep(100);
 386                 hdmi_wq_set_video(hdmi);
 387                 hdmi_wq_set_output(hdmi, hdmi->mute);
 388                 break;
 389         case HDMI_ENABLE_HDCP:
 390                 if (hdmi->hotplug == HDMI_HPD_ACTIVED && hdmi->ops->hdcp_cb)
 391                         hdmi->ops->hdcp_cb(hdmi);
 392                 break;
 393         default:
 394                 pr_err("HDMI: hdmi_work_queue() unkown event\n");
 395                 break;
 396         }
 397
 398         kfree(hdmi_w->data);
 399         kfree(hdmi_w);
 400
 401         DBG("\nhdmi_work_queue() - exit evt= %x %d\n",
 402             (event & 0xFF00) >> 8,
 403             event & 0xFF);
 404         mutex_unlock(&hdmi->lock);
 405 }
 406
 407 struct hdmi *rockchip_hdmi_register(struct hdmi_property *property,
 408                                     struct hdmi_ops *ops)
 409 {
 410         struct hdmi *hdmi;
 411         char name[32];
 412         int i;
 413
 414         if (property == NULL || ops == NULL) {
 415                 pr_err("HDMI: %s invalid parameter\n", __func__);
 416                 return NULL;
 417         }
 418
 419         for (i = 0; i < HDMI_MAX_ID; i++) {
 420                 if (ref_info[i].ref == 0)
 421                         break;
 422         }
 423         if (i == HDMI_MAX_ID)
 424                 return NULL;
 425
 426         DBG("hdmi_register() - video source %d display %d",
 427             property->videosrc,  property->display);
 428
 429         hdmi = kmalloc(sizeof(*hdmi), GFP_KERNEL);
 430         if (!hdmi) {
 431                 pr_err("HDMI: no memory to allocate hdmi device.\n");
 432                 return NULL;
 433         }
 434         memset(hdmi, 0, sizeof(struct hdmi));
 435         mutex_init(&hdmi->lock);
 436
 437         hdmi->property = property;
 438         hdmi->ops = ops;
 439         hdmi->enable = false;
 440         hdmi->mute = HDMI_AV_UNMUTE;
 441         hdmi->hotplug = HDMI_HPD_REMOVED;
 442         hdmi->autoset = HDMI_AUTO_CONFIG;
 443         if (uboot_vic > 0) {
 444                 hdmi->vic = uboot_vic;
 445                 hdmi->uboot = 1;
 446                 hdmi->autoset = 0;
 447         } else if (hdmi->autoset) {
 448                 hdmi->vic = 0;
 449         } else {
 450                 hdmi->vic = hdmi->property->defaultmode;
 451         }
 452         hdmi->colormode = HDMI_VIDEO_DEFAULT_COLORMODE;
 453         hdmi->colordepth = HDMI_DEPP_COLOR_AUTO;
 454         hdmi->mode_3d = HDMI_3D_NONE;
 455         hdmi->audio.type = HDMI_AUDIO_DEFAULT_TYPE;
 456         hdmi->audio.channel = HDMI_AUDIO_DEFAULT_CHANNEL;
 457         hdmi->audio.rate = HDMI_AUDIO_DEFAULT_RATE;
 458         hdmi->audio.word_length = HDMI_AUDIO_DEFAULT_WORDLENGTH;
 459         hdmi->xscale = 100;
 460         hdmi->yscale = 100;
 461         hdmi_init_modelist(hdmi);
 462
 463 #ifndef CONFIG_ARCH_RK29
 464         if (hdmi->property->videosrc == DISPLAY_SOURCE_LCDC0)
 465                 hdmi->lcdc = rk_get_lcdc_drv("lcdc0");
 466         else
 467                 hdmi->lcdc = rk_get_lcdc_drv("lcdc1");
 468 #endif
 469         memset(name, 0, 32);
 470         sprintf(name, "hdmi-%s", hdmi->property->name);
 471         hdmi->workqueue = create_singlethread_workqueue(name);
 472         if (hdmi->workqueue == NULL) {
 473                 pr_err("HDMI,: create workqueue failed.\n");
 474                 goto err_create_wq;
 475         }
 476         hdmi->ddev = hdmi_register_display_sysfs(hdmi, NULL);
 477         if (hdmi->ddev == NULL) {
 478                 pr_err("HDMI : register display sysfs failed.\n");
 479                 goto err_register_display;
 480         }
 481         hdmi->id = i;
 482         #ifdef CONFIG_SWITCH
 483         if (hdmi->id == 0) {
 484                 hdmi->switchdev.name = "hdmi";
 485         } else {
 486                 hdmi->switchdev.name = kzalloc(32, GFP_KERNEL);
 487                 memset((char *)hdmi->switchdev.name, 0, 32);
 488                 sprintf((char *)hdmi->switchdev.name, "hdmi%d", hdmi->id);
 489         }
 490         switch_dev_register(&(hdmi->switchdev));
 491         #endif
 492
 493         ref_info[i].hdmi = hdmi;
 494         ref_info[i].ref = 1;
 495         return hdmi;
 496
 497 err_register_display:
 498         destroy_workqueue(hdmi->workqueue);
 499 err_create_wq:
 500         kfree(hdmi);
 501         return NULL;
 502 }
 503
 504 void rockchip_hdmi_unregister(struct hdmi *hdmi)
 505 {
 506         if (hdmi) {
 507                 flush_workqueue(hdmi->workqueue);
 508                 destroy_workqueue(hdmi->workqueue);
 509                 #ifdef CONFIG_SWITCH
 510                 switch_dev_unregister(&(hdmi->switchdev));
 511                 #endif
 512                 hdmi_unregister_display_sysfs(hdmi);
 513                 fb_destroy_modelist(&hdmi->edid.modelist);
 514                 kfree(hdmi->edid.audio);
 515                 if (hdmi->edid.specs) {
 516                         kfree(hdmi->edid.specs->modedb);
 517                         kfree(hdmi->edid.specs);
 518                 }
 519                 kfree(hdmi);
 520
 521                 ref_info[hdmi->id].ref = 0;
 522                 ref_info[hdmi->id].hdmi = NULL;
 523
 524                 hdmi = NULL;
 525         }
 526 }
 527
 528 int hdmi_get_hotplug(void)
 529 {
 530         if (ref_info[0].hdmi)
 531                 return ref_info[0].hdmi->hotplug;
 532         else
 533                 return HDMI_HPD_REMOVED;
 534 }
 535
 536 int hdmi_config_audio(struct hdmi_audio *audio)
 537 {
 538         int i;
 539         struct hdmi *hdmi;
 540
 541         if (audio == NULL)
 542                 return HDMI_ERROR_FALSE;
 543
 544         for (i = 0; i < HDMI_MAX_ID; i++) {
 545                 if (ref_info[i].ref == 0)
 546                         continue;
 547                 hdmi = ref_info[i].hdmi;
 548
 549                 /*
 550                 if (memcmp(audio, &hdmi->audio, sizeof(struct hdmi_audio)) == 0)
 551                         continue;
 552                 */
 553                 /*for (j = 0; j < hdmi->edid.audio_num; j++) {
 554                         if (audio->type == hdmi->edid.audio_num)
 555                                 break;
 556                 }*/
 557
 558                 /*if ( (j == hdmi->edid.audio_num) ||
 559                         (audio->channel > hdmi->edid.audio[j].channel) ||
 560                         ((audio->rate & hdmi->edid.audio[j].rate) == 0)||
 561                         ((audio->type == HDMI_AUDIO_LPCM) &&
 562                         ((audio->word_length &
 563                           hdmi->edid.audio[j].word_length) == 0)) ) {
 564                         pr_warn("[%s] warning : input audio type
 565                                 not supported in hdmi sink\n", __func__);
 566                         continue;
 567                 }*/
 568                 memcpy(&hdmi->audio, audio, sizeof(struct hdmi_audio));
 569                 hdmi_submit_work(hdmi, HDMI_SET_AUDIO, 0, NULL);
 570         }
 571         return 0;
 572 }
 573
 574 void hdmi_audio_mute(int mute)
 575 {
 576         int i;
 577         struct hdmi *hdmi;
 578
 579         for (i = 0; i < HDMI_MAX_ID; i++) {
 580                 if (ref_info[i].ref == 0)
 581                         continue;
 582                 hdmi = ref_info[i].hdmi;
 583
 584                 if (mute)
 585                         hdmi_submit_work(hdmi, HDMI_MUTE_AUDIO, 0, NULL);
 586                 else
 587                         hdmi_submit_work(hdmi, HDMI_UNMUTE_AUDIO, 0, NULL);
 588         }
 589 }
 590
 591 static int __init bootloader_setup(char *str)
 592 {
 593         if (str) {
 594                 pr_info("hdmi init vic is %s\n", str);
 595                 if (kstrtoint(str, 0, &uboot_vic) < 0)
 596                         uboot_vic = 0;
 597         }
 598         return 0;
 599 }
 600
 601 early_param("hdmi.vic", bootloader_setup);
 602
 603 static int __init hdmi_class_init(void)
 604 {
 605         int i;
 606
 607         for (i = 0; i < HDMI_MAX_ID; i++) {
 608                 ref_info[i].id = i;
 609                 ref_info[i].ref = 0;
 610                 ref_info[i].hdmi = NULL;
 611         }
 612         pr_info("Rockchip hdmi driver version 2.0\n.");
 613         return 0;
 614 }
 615
 616 subsys_initcall(hdmi_class_init);