drivers/gpu/drm/omapdrm/dss/hdmi5.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * HDMI driver for OMAP5
   4  *
   5  * Copyright (C) 2014 Texas Instruments Incorporated - https://www.ti.com/
   6  *
   7  * Authors:
   8  *      Yong Zhi
   9  *      Mythri pk
  10  *      Archit Taneja <[email protected]>
  11  *      Tomi Valkeinen <[email protected]>
  12  */
  13
  14 #define DSS_SUBSYS_NAME "HDMI"
  15
  16 #include <linux/kernel.h>
  17 #include <linux/module.h>
  18 #include <linux/err.h>
  19 #include <linux/io.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/mutex.h>
  22 #include <linux/delay.h>
  23 #include <linux/string.h>
  24 #include <linux/platform_device.h>
  25 #include <linux/pm_runtime.h>
  26 #include <linux/clk.h>
  27 #include <linux/regulator/consumer.h>
  28 #include <linux/component.h>
  29 #include <linux/of.h>
  30 #include <linux/of_graph.h>
  31 #include <sound/omap-hdmi-audio.h>
  32
  33 #include <drm/drm_atomic.h>
  34 #include <drm/drm_atomic_state_helper.h>
  35
  36 #include "omapdss.h"
  37 #include "hdmi5_core.h"
  38 #include "dss.h"
  39
  40 static int hdmi_runtime_get(struct omap_hdmi *hdmi)
  41 {
  42         int r;
  43
  44         DSSDBG("hdmi_runtime_get\n");
  45
  46         r = pm_runtime_get_sync(&hdmi->pdev->dev);
  47         if (WARN_ON(r < 0)) {
  48                 pm_runtime_put_noidle(&hdmi->pdev->dev);
  49                 return r;
  50         }
  51         return 0;
  52 }
  53
  54 static void hdmi_runtime_put(struct omap_hdmi *hdmi)
  55 {
  56         int r;
  57
  58         DSSDBG("hdmi_runtime_put\n");
  59
  60         r = pm_runtime_put_sync(&hdmi->pdev->dev);
  61         WARN_ON(r < 0 && r != -ENOSYS);
  62 }
  63
  64 static irqreturn_t hdmi_irq_handler(int irq, void *data)
  65 {
  66         struct omap_hdmi *hdmi = data;
  67         struct hdmi_wp_data *wp = &hdmi->wp;
  68         u32 irqstatus;
  69
  70         irqstatus = hdmi_wp_get_irqstatus(wp);
  71         hdmi_wp_set_irqstatus(wp, irqstatus);
  72
  73         if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&
  74                         irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
  75                 u32 v;
  76                 /*
  77                  * If we get both connect and disconnect interrupts at the same
  78                  * time, turn off the PHY, clear interrupts, and restart, which
  79                  * raises connect interrupt if a cable is connected, or nothing
  80                  * if cable is not connected.
  81                  */
  82
  83                 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);
  84
  85                 /*
  86                  * We always get bogus CONNECT & DISCONNECT interrupts when
  87                  * setting the PHY to LDOON. To ignore those, we force the RXDET
  88                  * line to 0 until the PHY power state has been changed.
  89                  */
  90                 v = hdmi_read_reg(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL);
  91                 v = FLD_MOD(v, 1, 15, 15); /* FORCE_RXDET_HIGH */
  92                 v = FLD_MOD(v, 0, 14, 7); /* RXDET_LINE */
  93                 hdmi_write_reg(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL, v);
  94
  95                 hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT |
  96                                 HDMI_IRQ_LINK_DISCONNECT);
  97
  98                 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
  99
 100                 REG_FLD_MOD(hdmi->phy.base, HDMI_TXPHY_PAD_CFG_CTRL, 0, 15, 15);
 101
 102         } else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
 103                 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON);
 104         } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
 105                 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
 106         }
 107
 108         return IRQ_HANDLED;
 109 }
 110
 111 static int hdmi_power_on_core(struct omap_hdmi *hdmi)
 112 {
 113         int r;
 114
 115         r = regulator_enable(hdmi->vdda_reg);
 116         if (r)
 117                 return r;
 118
 119         r = hdmi_runtime_get(hdmi);
 120         if (r)
 121                 goto err_runtime_get;
 122
 123         /* Make selection of HDMI in DSS */
 124         dss_select_hdmi_venc_clk_source(hdmi->dss, DSS_HDMI_M_PCLK);
 125
 126         hdmi->core_enabled = true;
 127
 128         return 0;
 129
 130 err_runtime_get:
 131         regulator_disable(hdmi->vdda_reg);
 132
 133         return r;
 134 }
 135
 136 static void hdmi_power_off_core(struct omap_hdmi *hdmi)
 137 {
 138         hdmi->core_enabled = false;
 139
 140         hdmi_runtime_put(hdmi);
 141         regulator_disable(hdmi->vdda_reg);
 142 }
 143
 144 static int hdmi_power_on_full(struct omap_hdmi *hdmi)
 145 {
 146         int r;
 147         const struct videomode *vm;
 148         struct dss_pll_clock_info hdmi_cinfo = { 0 };
 149         unsigned int pc;
 150
 151         r = hdmi_power_on_core(hdmi);
 152         if (r)
 153                 return r;
 154
 155         vm = &hdmi->cfg.vm;
 156
 157         DSSDBG("hdmi_power_on hactive= %d vactive = %d\n", vm->hactive,
 158                vm->vactive);
 159
 160         pc = vm->pixelclock;
 161         if (vm->flags & DISPLAY_FLAGS_DOUBLECLK)
 162                 pc *= 2;
 163
 164         /* DSS_HDMI_TCLK is bitclk / 10 */
 165         pc *= 10;
 166
 167         dss_pll_calc_b(&hdmi->pll.pll, clk_get_rate(hdmi->pll.pll.clkin),
 168                 pc, &hdmi_cinfo);
 169
 170         /* disable and clear irqs */
 171         hdmi_wp_clear_irqenable(&hdmi->wp, 0xffffffff);
 172         hdmi_wp_set_irqstatus(&hdmi->wp,
 173                         hdmi_wp_get_irqstatus(&hdmi->wp));
 174
 175         r = dss_pll_enable(&hdmi->pll.pll);
 176         if (r) {
 177                 DSSERR("Failed to enable PLL\n");
 178                 goto err_pll_enable;
 179         }
 180
 181         r = dss_pll_set_config(&hdmi->pll.pll, &hdmi_cinfo);
 182         if (r) {
 183                 DSSERR("Failed to configure PLL\n");
 184                 goto err_pll_cfg;
 185         }
 186
 187         r = hdmi_phy_configure(&hdmi->phy, hdmi_cinfo.clkdco,
 188                 hdmi_cinfo.clkout[0]);
 189         if (r) {
 190                 DSSDBG("Failed to start PHY\n");
 191                 goto err_phy_cfg;
 192         }
 193
 194         r = hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_LDOON);
 195         if (r)
 196                 goto err_phy_pwr;
 197
 198         hdmi5_configure(&hdmi->core, &hdmi->wp, &hdmi->cfg);
 199
 200         r = dss_mgr_enable(&hdmi->output);
 201         if (r)
 202                 goto err_mgr_enable;
 203
 204         r = hdmi_wp_video_start(&hdmi->wp);
 205         if (r)
 206                 goto err_vid_enable;
 207
 208         hdmi_wp_set_irqenable(&hdmi->wp,
 209                         HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
 210
 211         return 0;
 212
 213 err_vid_enable:
 214         dss_mgr_disable(&hdmi->output);
 215 err_mgr_enable:
 216         hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
 217 err_phy_pwr:
 218 err_phy_cfg:
 219 err_pll_cfg:
 220         dss_pll_disable(&hdmi->pll.pll);
 221 err_pll_enable:
 222         hdmi_power_off_core(hdmi);
 223         return -EIO;
 224 }
 225
 226 static void hdmi_power_off_full(struct omap_hdmi *hdmi)
 227 {
 228         hdmi_wp_clear_irqenable(&hdmi->wp, 0xffffffff);
 229
 230         hdmi_wp_video_stop(&hdmi->wp);
 231
 232         dss_mgr_disable(&hdmi->output);
 233
 234         hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);
 235
 236         dss_pll_disable(&hdmi->pll.pll);
 237
 238         hdmi_power_off_core(hdmi);
 239 }
 240
 241 static int hdmi_dump_regs(struct seq_file *s, void *p)
 242 {
 243         struct omap_hdmi *hdmi = s->private;
 244
 245         mutex_lock(&hdmi->lock);
 246
 247         if (hdmi_runtime_get(hdmi)) {
 248                 mutex_unlock(&hdmi->lock);
 249                 return 0;
 250         }
 251
 252         hdmi_wp_dump(&hdmi->wp, s);
 253         hdmi_pll_dump(&hdmi->pll, s);
 254         hdmi_phy_dump(&hdmi->phy, s);
 255         hdmi5_core_dump(&hdmi->core, s);
 256
 257         hdmi_runtime_put(hdmi);
 258         mutex_unlock(&hdmi->lock);
 259         return 0;
 260 }
 261
 262 static void hdmi_start_audio_stream(struct omap_hdmi *hd)
 263 {
 264         REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
 265         hdmi_wp_audio_enable(&hd->wp, true);
 266         hdmi_wp_audio_core_req_enable(&hd->wp, true);
 267 }
 268
 269 static void hdmi_stop_audio_stream(struct omap_hdmi *hd)
 270 {
 271         hdmi_wp_audio_core_req_enable(&hd->wp, false);
 272         hdmi_wp_audio_enable(&hd->wp, false);
 273         REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, hd->wp_idlemode, 3, 2);
 274 }
 275
 276 static int hdmi_core_enable(struct omap_hdmi *hdmi)
 277 {
 278         int r = 0;
 279
 280         DSSDBG("ENTER omapdss_hdmi_core_enable\n");
 281
 282         mutex_lock(&hdmi->lock);
 283
 284         r = hdmi_power_on_core(hdmi);
 285         if (r) {
 286                 DSSERR("failed to power on device\n");
 287                 goto err0;
 288         }
 289
 290         mutex_unlock(&hdmi->lock);
 291         return 0;
 292
 293 err0:
 294         mutex_unlock(&hdmi->lock);
 295         return r;
 296 }
 297
 298 static void hdmi_core_disable(struct omap_hdmi *hdmi)
 299 {
 300         DSSDBG("Enter omapdss_hdmi_core_disable\n");
 301
 302         mutex_lock(&hdmi->lock);
 303
 304         hdmi_power_off_core(hdmi);
 305
 306         mutex_unlock(&hdmi->lock);
 307 }
 308
 309 /* -----------------------------------------------------------------------------
 310  * DRM Bridge Operations
 311  */
 312
 313 static int hdmi5_bridge_attach(struct drm_bridge *bridge,
 314                                enum drm_bridge_attach_flags flags)
 315 {
 316         struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
 317
 318         if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR))
 319                 return -EINVAL;
 320
 321         return drm_bridge_attach(bridge->encoder, hdmi->output.next_bridge,
 322                                  bridge, flags);
 323 }
 324
 325 static void hdmi5_bridge_mode_set(struct drm_bridge *bridge,
 326                                   const struct drm_display_mode *mode,
 327                                   const struct drm_display_mode *adjusted_mode)
 328 {
 329         struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
 330
 331         mutex_lock(&hdmi->lock);
 332
 333         drm_display_mode_to_videomode(adjusted_mode, &hdmi->cfg.vm);
 334
 335         dispc_set_tv_pclk(hdmi->dss->dispc, adjusted_mode->clock * 1000);
 336
 337         mutex_unlock(&hdmi->lock);
 338 }
 339
 340 static void hdmi5_bridge_enable(struct drm_bridge *bridge,
 341                                 struct drm_bridge_state *bridge_state)
 342 {
 343         struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
 344         struct drm_atomic_state *state = bridge_state->base.state;
 345         struct drm_connector_state *conn_state;
 346         struct drm_connector *connector;
 347         struct drm_crtc_state *crtc_state;
 348         unsigned long flags;
 349         int ret;
 350
 351         /*
 352          * None of these should fail, as the bridge can't be enabled without a
 353          * valid CRTC to connector path with fully populated new states.
 354          */
 355         connector = drm_atomic_get_new_connector_for_encoder(state,
 356                                                              bridge->encoder);
 357         if (WARN_ON(!connector))
 358                 return;
 359         conn_state = drm_atomic_get_new_connector_state(state, connector);
 360         if (WARN_ON(!conn_state))
 361                 return;
 362         crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);
 363         if (WARN_ON(!crtc_state))
 364                 return;
 365
 366         hdmi->cfg.hdmi_dvi_mode = connector->display_info.is_hdmi
 367                                 ? HDMI_HDMI : HDMI_DVI;
 368
 369         if (connector->display_info.is_hdmi) {
 370                 const struct drm_display_mode *mode;
 371                 struct hdmi_avi_infoframe avi;
 372
 373                 mode = &crtc_state->adjusted_mode;
 374                 ret = drm_hdmi_avi_infoframe_from_display_mode(&avi, connector,
 375                                                                mode);
 376                 if (ret == 0)
 377                         hdmi->cfg.infoframe = avi;
 378         }
 379
 380         mutex_lock(&hdmi->lock);
 381
 382         ret = hdmi_power_on_full(hdmi);
 383         if (ret) {
 384                 DSSERR("failed to power on device\n");
 385                 goto done;
 386         }
 387
 388         if (hdmi->audio_configured) {
 389                 ret = hdmi5_audio_config(&hdmi->core, &hdmi->wp,
 390                                          &hdmi->audio_config,
 391                                          hdmi->cfg.vm.pixelclock);
 392                 if (ret) {
 393                         DSSERR("Error restoring audio configuration: %d", ret);
 394                         hdmi->audio_abort_cb(&hdmi->pdev->dev);
 395                         hdmi->audio_configured = false;
 396                 }
 397         }
 398
 399         spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
 400         if (hdmi->audio_configured && hdmi->audio_playing)
 401                 hdmi_start_audio_stream(hdmi);
 402         hdmi->display_enabled = true;
 403         spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
 404
 405 done:
 406         mutex_unlock(&hdmi->lock);
 407 }
 408
 409 static void hdmi5_bridge_disable(struct drm_bridge *bridge,
 410                                  struct drm_bridge_state *bridge_state)
 411 {
 412         struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
 413         unsigned long flags;
 414
 415         mutex_lock(&hdmi->lock);
 416
 417         spin_lock_irqsave(&hdmi->audio_playing_lock, flags);
 418         hdmi_stop_audio_stream(hdmi);
 419         hdmi->display_enabled = false;
 420         spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);
 421
 422         hdmi_power_off_full(hdmi);
 423
 424         mutex_unlock(&hdmi->lock);
 425 }
 426
 427 static struct edid *hdmi5_bridge_get_edid(struct drm_bridge *bridge,
 428                                           struct drm_connector *connector)
 429 {
 430         struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);
 431         struct edid *edid;
 432         bool need_enable;
 433         int idlemode;
 434         int r;
 435
 436         need_enable = hdmi->core_enabled == false;
 437
 438         if (need_enable) {
 439                 r = hdmi_core_enable(hdmi);
 440                 if (r)
 441                         return NULL;
 442         }
 443
 444         mutex_lock(&hdmi->lock);
 445         r = hdmi_runtime_get(hdmi);
 446         BUG_ON(r);
 447
 448         idlemode = REG_GET(hdmi->wp.base, HDMI_WP_SYSCONFIG, 3, 2);
 449         /* No-idle mode */
 450         REG_FLD_MOD(hdmi->wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
 451
 452         hdmi5_core_ddc_init(&hdmi->core);
 453
 454         edid = drm_do_get_edid(connector, hdmi5_core_ddc_read, &hdmi->core);
 455
 456         hdmi5_core_ddc_uninit(&hdmi->core);
 457
 458         REG_FLD_MOD(hdmi->wp.base, HDMI_WP_SYSCONFIG, idlemode, 3, 2);
 459
 460         hdmi_runtime_put(hdmi);
 461         mutex_unlock(&hdmi->lock);
 462
 463         if (need_enable)
 464                 hdmi_core_disable(hdmi);
 465
 466         return (struct edid *)edid;
 467 }
 468
 469 static const struct drm_bridge_funcs hdmi5_bridge_funcs = {
 470         .attach = hdmi5_bridge_attach,
 471         .mode_set = hdmi5_bridge_mode_set,
 472         .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,
 473         .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,
 474         .atomic_reset = drm_atomic_helper_bridge_reset,
 475         .atomic_enable = hdmi5_bridge_enable,
 476         .atomic_disable = hdmi5_bridge_disable,
 477         .get_edid = hdmi5_bridge_get_edid,
 478 };
 479
 480 static void hdmi5_bridge_init(struct omap_hdmi *hdmi)
 481 {
 482         hdmi->bridge.funcs = &hdmi5_bridge_funcs;
 483         hdmi->bridge.of_node = hdmi->pdev->dev.of_node;
 484         hdmi->bridge.ops = DRM_BRIDGE_OP_EDID;
 485         hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA;
 486
 487         drm_bridge_add(&hdmi->bridge);
 488 }
 489
 490 static void hdmi5_bridge_cleanup(struct omap_hdmi *hdmi)
 491 {
 492         drm_bridge_remove(&hdmi->bridge);
 493 }
 494
 495 /* -----------------------------------------------------------------------------
 496  * Audio Callbacks
 497  */
 498
 499 static int hdmi_audio_startup(struct device *dev,
 500                               void (*abort_cb)(struct device *dev))
 501 {
 502         struct omap_hdmi *hd = dev_get_drvdata(dev);
 503
 504         mutex_lock(&hd->lock);
 505
 506         WARN_ON(hd->audio_abort_cb != NULL);
 507
 508         hd->audio_abort_cb = abort_cb;
 509
 510         mutex_unlock(&hd->lock);
 511
 512         return 0;
 513 }
 514
 515 static int hdmi_audio_shutdown(struct device *dev)
 516 {
 517         struct omap_hdmi *hd = dev_get_drvdata(dev);
 518
 519         mutex_lock(&hd->lock);
 520         hd->audio_abort_cb = NULL;
 521         hd->audio_configured = false;
 522         hd->audio_playing = false;
 523         mutex_unlock(&hd->lock);
 524
 525         return 0;
 526 }
 527
 528 static int hdmi_audio_start(struct device *dev)
 529 {
 530         struct omap_hdmi *hd = dev_get_drvdata(dev);
 531         unsigned long flags;
 532
 533         spin_lock_irqsave(&hd->audio_playing_lock, flags);
 534
 535         if (hd->display_enabled) {
 536                 if (!hdmi_mode_has_audio(&hd->cfg))
 537                         DSSERR("%s: Video mode does not support audio\n",
 538                                __func__);
 539                 hdmi_start_audio_stream(hd);
 540         }
 541         hd->audio_playing = true;
 542
 543         spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
 544         return 0;
 545 }
 546
 547 static void hdmi_audio_stop(struct device *dev)
 548 {
 549         struct omap_hdmi *hd = dev_get_drvdata(dev);
 550         unsigned long flags;
 551
 552         if (!hdmi_mode_has_audio(&hd->cfg))
 553                 DSSERR("%s: Video mode does not support audio\n", __func__);
 554
 555         spin_lock_irqsave(&hd->audio_playing_lock, flags);
 556
 557         if (hd->display_enabled)
 558                 hdmi_stop_audio_stream(hd);
 559         hd->audio_playing = false;
 560
 561         spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
 562 }
 563
 564 static int hdmi_audio_config(struct device *dev,
 565                              struct omap_dss_audio *dss_audio)
 566 {
 567         struct omap_hdmi *hd = dev_get_drvdata(dev);
 568         int ret = 0;
 569
 570         mutex_lock(&hd->lock);
 571
 572         if (hd->display_enabled) {
 573                 ret = hdmi5_audio_config(&hd->core, &hd->wp, dss_audio,
 574                                          hd->cfg.vm.pixelclock);
 575                 if (ret)
 576                         goto out;
 577         }
 578
 579         hd->audio_configured = true;
 580         hd->audio_config = *dss_audio;
 581 out:
 582         mutex_unlock(&hd->lock);
 583
 584         return ret;
 585 }
 586
 587 static const struct omap_hdmi_audio_ops hdmi_audio_ops = {
 588         .audio_startup = hdmi_audio_startup,
 589         .audio_shutdown = hdmi_audio_shutdown,
 590         .audio_start = hdmi_audio_start,
 591         .audio_stop = hdmi_audio_stop,
 592         .audio_config = hdmi_audio_config,
 593 };
 594
 595 static int hdmi_audio_register(struct omap_hdmi *hdmi)
 596 {
 597         struct omap_hdmi_audio_pdata pdata = {
 598                 .dev = &hdmi->pdev->dev,
 599                 .version = 5,
 600                 .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi->wp),
 601                 .ops = &hdmi_audio_ops,
 602         };
 603
 604         hdmi->audio_pdev = platform_device_register_data(
 605                 &hdmi->pdev->dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO,
 606                 &pdata, sizeof(pdata));
 607
 608         if (IS_ERR(hdmi->audio_pdev))
 609                 return PTR_ERR(hdmi->audio_pdev);
 610
 611         hdmi_runtime_get(hdmi);
 612         hdmi->wp_idlemode =
 613                 REG_GET(hdmi->wp.base, HDMI_WP_SYSCONFIG, 3, 2);
 614         hdmi_runtime_put(hdmi);
 615
 616         return 0;
 617 }
 618
 619 /* -----------------------------------------------------------------------------
 620  * Component Bind & Unbind
 621  */
 622
 623 static int hdmi5_bind(struct device *dev, struct device *master, void *data)
 624 {
 625         struct dss_device *dss = dss_get_device(master);
 626         struct omap_hdmi *hdmi = dev_get_drvdata(dev);
 627         int r;
 628
 629         hdmi->dss = dss;
 630
 631         r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp);
 632         if (r)
 633                 return r;
 634
 635         r = hdmi_audio_register(hdmi);
 636         if (r) {
 637                 DSSERR("Registering HDMI audio failed %d\n", r);
 638                 goto err_pll_uninit;
 639         }
 640
 641         hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs,
 642                                                 hdmi);
 643
 644         return 0;
 645
 646 err_pll_uninit:
 647         hdmi_pll_uninit(&hdmi->pll);
 648         return r;
 649 }
 650
 651 static void hdmi5_unbind(struct device *dev, struct device *master, void *data)
 652 {
 653         struct omap_hdmi *hdmi = dev_get_drvdata(dev);
 654
 655         dss_debugfs_remove_file(hdmi->debugfs);
 656
 657         if (hdmi->audio_pdev)
 658                 platform_device_unregister(hdmi->audio_pdev);
 659
 660         hdmi_pll_uninit(&hdmi->pll);
 661 }
 662
 663 static const struct component_ops hdmi5_component_ops = {
 664         .bind   = hdmi5_bind,
 665         .unbind = hdmi5_unbind,
 666 };
 667
 668 /* -----------------------------------------------------------------------------
 669  * Probe & Remove, Suspend & Resume
 670  */
 671
 672 static int hdmi5_init_output(struct omap_hdmi *hdmi)
 673 {
 674         struct omap_dss_device *out = &hdmi->output;
 675         int r;
 676
 677         hdmi5_bridge_init(hdmi);
 678
 679         out->dev = &hdmi->pdev->dev;
 680         out->id = OMAP_DSS_OUTPUT_HDMI;
 681         out->type = OMAP_DISPLAY_TYPE_HDMI;
 682         out->name = "hdmi.0";
 683         out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
 684         out->of_port = 0;
 685
 686         r = omapdss_device_init_output(out, &hdmi->bridge);
 687         if (r < 0) {
 688                 hdmi5_bridge_cleanup(hdmi);
 689                 return r;
 690         }
 691
 692         omapdss_device_register(out);
 693
 694         return 0;
 695 }
 696
 697 static void hdmi5_uninit_output(struct omap_hdmi *hdmi)
 698 {
 699         struct omap_dss_device *out = &hdmi->output;
 700
 701         omapdss_device_unregister(out);
 702         omapdss_device_cleanup_output(out);
 703
 704         hdmi5_bridge_cleanup(hdmi);
 705 }
 706
 707 static int hdmi5_probe_of(struct omap_hdmi *hdmi)
 708 {
 709         struct platform_device *pdev = hdmi->pdev;
 710         struct device_node *node = pdev->dev.of_node;
 711         struct device_node *ep;
 712         int r;
 713
 714         ep = of_graph_get_endpoint_by_regs(node, 0, 0);
 715         if (!ep)
 716                 return 0;
 717
 718         r = hdmi_parse_lanes_of(pdev, ep, &hdmi->phy);
 719         of_node_put(ep);
 720         return r;
 721 }
 722
 723 static int hdmi5_probe(struct platform_device *pdev)
 724 {
 725         struct omap_hdmi *hdmi;
 726         int irq;
 727         int r;
 728
 729         hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
 730         if (!hdmi)
 731                 return -ENOMEM;
 732
 733         hdmi->pdev = pdev;
 734
 735         dev_set_drvdata(&pdev->dev, hdmi);
 736
 737         mutex_init(&hdmi->lock);
 738         spin_lock_init(&hdmi->audio_playing_lock);
 739
 740         r = hdmi5_probe_of(hdmi);
 741         if (r)
 742                 goto err_free;
 743
 744         r = hdmi_wp_init(pdev, &hdmi->wp, 5);
 745         if (r)
 746                 goto err_free;
 747
 748         r = hdmi_phy_init(pdev, &hdmi->phy, 5);
 749         if (r)
 750                 goto err_free;
 751
 752         r = hdmi5_core_init(pdev, &hdmi->core);
 753         if (r)
 754                 goto err_free;
 755
 756         irq = platform_get_irq(pdev, 0);
 757         if (irq < 0) {
 758                 DSSERR("platform_get_irq failed\n");
 759                 r = -ENODEV;
 760                 goto err_free;
 761         }
 762
 763         r = devm_request_threaded_irq(&pdev->dev, irq,
 764                         NULL, hdmi_irq_handler,
 765                         IRQF_ONESHOT, "OMAP HDMI", hdmi);
 766         if (r) {
 767                 DSSERR("HDMI IRQ request failed\n");
 768                 goto err_free;
 769         }
 770
 771         hdmi->vdda_reg = devm_regulator_get(&pdev->dev, "vdda");
 772         if (IS_ERR(hdmi->vdda_reg)) {
 773                 r = PTR_ERR(hdmi->vdda_reg);
 774                 if (r != -EPROBE_DEFER)
 775                         DSSERR("can't get VDDA regulator\n");
 776                 goto err_free;
 777         }
 778
 779         pm_runtime_enable(&pdev->dev);
 780
 781         r = hdmi5_init_output(hdmi);
 782         if (r)
 783                 goto err_pm_disable;
 784
 785         r = component_add(&pdev->dev, &hdmi5_component_ops);
 786         if (r)
 787                 goto err_uninit_output;
 788
 789         return 0;
 790
 791 err_uninit_output:
 792         hdmi5_uninit_output(hdmi);
 793 err_pm_disable:
 794         pm_runtime_disable(&pdev->dev);
 795 err_free:
 796         kfree(hdmi);
 797         return r;
 798 }
 799
 800 static int hdmi5_remove(struct platform_device *pdev)
 801 {
 802         struct omap_hdmi *hdmi = platform_get_drvdata(pdev);
 803
 804         component_del(&pdev->dev, &hdmi5_component_ops);
 805
 806         hdmi5_uninit_output(hdmi);
 807
 808         pm_runtime_disable(&pdev->dev);
 809
 810         kfree(hdmi);
 811         return 0;
 812 }
 813
 814 static const struct of_device_id hdmi_of_match[] = {
 815         { .compatible = "ti,omap5-hdmi", },
 816         { .compatible = "ti,dra7-hdmi", },
 817         {},
 818 };
 819
 820 struct platform_driver omapdss_hdmi5hw_driver = {
 821         .probe          = hdmi5_probe,
 822         .remove         = hdmi5_remove,
 823         .driver         = {
 824                 .name   = "omapdss_hdmi5",
 825                 .of_match_table = hdmi_of_match,
 826                 .suppress_bind_attrs = true,
 827         },
 828 };