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

   1 /*
   2  * HDMI driver for OMAP5
   3  *
   4  * Copyright (C) 2014 Texas Instruments Incorporated
   5  *
   6  * Authors:
   7  *      Yong Zhi
   8  *      Mythri pk
   9  *      Archit Taneja <archit@ti.com>
  10  *      Tomi Valkeinen <tomi.valkeinen@ti.com>
  11  *
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms of the GNU General Public License version 2 as published by
  14  * the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but WITHOUT
  17  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  19  * more details.
  20  *
  21  * You should have received a copy of the GNU General Public License along with
  22  * this program.  If not, see <http://www.gnu.org/licenses/>.
  23  */
  24
  25 #define DSS_SUBSYS_NAME "HDMI"
  26
  27 #include <linux/kernel.h>
  28 #include <linux/module.h>
  29 #include <linux/err.h>
  30 #include <linux/io.h>
  31 #include <linux/interrupt.h>
  32 #include <linux/mutex.h>
  33 #include <linux/delay.h>
  34 #include <linux/string.h>
  35 #include <linux/platform_device.h>
  36 #include <linux/pm_runtime.h>
  37 #include <linux/clk.h>
  38 #include <linux/gpio.h>
  39 #include <linux/regulator/consumer.h>
  40 #include <linux/component.h>
  41 #include <video/omapdss.h>
  42 #include <sound/omap-hdmi-audio.h>
  43
  44 #include "hdmi5_core.h"
  45 #include "dss.h"
  46 #include "dss_features.h"
  47
  48 static struct omap_hdmi hdmi;
  49
  50 static int hdmi_runtime_get(void)
  51 {
  52         int r;
  53
  54         DSSDBG("hdmi_runtime_get\n");
  55
  56         r = pm_runtime_get_sync(&hdmi.pdev->dev);
  57         WARN_ON(r < 0);
  58         if (r < 0)
  59                 return r;
  60
  61         return 0;
  62 }
  63
  64 static void hdmi_runtime_put(void)
  65 {
  66         int r;
  67
  68         DSSDBG("hdmi_runtime_put\n");
  69
  70         r = pm_runtime_put_sync(&hdmi.pdev->dev);
  71         WARN_ON(r < 0 && r != -ENOSYS);
  72 }
  73
  74 static irqreturn_t hdmi_irq_handler(int irq, void *data)
  75 {
  76         struct hdmi_wp_data *wp = data;
  77         u32 irqstatus;
  78
  79         irqstatus = hdmi_wp_get_irqstatus(wp);
  80         hdmi_wp_set_irqstatus(wp, irqstatus);
  81
  82         if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&
  83                         irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
  84                 u32 v;
  85                 /*
  86                  * If we get both connect and disconnect interrupts at the same
  87                  * time, turn off the PHY, clear interrupts, and restart, which
  88                  * raises connect interrupt if a cable is connected, or nothing
  89                  * if cable is not connected.
  90                  */
  91
  92                 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);
  93
  94                 /*
  95                  * We always get bogus CONNECT & DISCONNECT interrupts when
  96                  * setting the PHY to LDOON. To ignore those, we force the RXDET
  97                  * line to 0 until the PHY power state has been changed.
  98                  */
  99                 v = hdmi_read_reg(hdmi.phy.base, HDMI_TXPHY_PAD_CFG_CTRL);
 100                 v = FLD_MOD(v, 1, 15, 15); /* FORCE_RXDET_HIGH */
 101                 v = FLD_MOD(v, 0, 14, 7); /* RXDET_LINE */
 102                 hdmi_write_reg(hdmi.phy.base, HDMI_TXPHY_PAD_CFG_CTRL, v);
 103
 104                 hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT |
 105                                 HDMI_IRQ_LINK_DISCONNECT);
 106
 107                 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
 108
 109                 REG_FLD_MOD(hdmi.phy.base, HDMI_TXPHY_PAD_CFG_CTRL, 0, 15, 15);
 110
 111         } else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
 112                 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON);
 113         } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
 114                 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
 115         }
 116
 117         return IRQ_HANDLED;
 118 }
 119
 120 static int hdmi_init_regulator(void)
 121 {
 122         int r;
 123         struct regulator *reg;
 124
 125         if (hdmi.vdda_reg != NULL)
 126                 return 0;
 127
 128         reg = devm_regulator_get(&hdmi.pdev->dev, "vdda");
 129         if (IS_ERR(reg)) {
 130                 DSSERR("can't get VDDA regulator\n");
 131                 return PTR_ERR(reg);
 132         }
 133
 134         if (regulator_can_change_voltage(reg)) {
 135                 r = regulator_set_voltage(reg, 1800000, 1800000);
 136                 if (r) {
 137                         devm_regulator_put(reg);
 138                         DSSWARN("can't set the regulator voltage\n");
 139                         return r;
 140                 }
 141         }
 142
 143         hdmi.vdda_reg = reg;
 144
 145         return 0;
 146 }
 147
 148 static int hdmi_power_on_core(struct omap_dss_device *dssdev)
 149 {
 150         int r;
 151
 152         r = regulator_enable(hdmi.vdda_reg);
 153         if (r)
 154                 return r;
 155
 156         r = hdmi_runtime_get();
 157         if (r)
 158                 goto err_runtime_get;
 159
 160         /* Make selection of HDMI in DSS */
 161         dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK);
 162
 163         hdmi.core_enabled = true;
 164
 165         return 0;
 166
 167 err_runtime_get:
 168         regulator_disable(hdmi.vdda_reg);
 169
 170         return r;
 171 }
 172
 173 static void hdmi_power_off_core(struct omap_dss_device *dssdev)
 174 {
 175         hdmi.core_enabled = false;
 176
 177         hdmi_runtime_put();
 178         regulator_disable(hdmi.vdda_reg);
 179 }
 180
 181 static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 182 {
 183         int r;
 184         struct omap_video_timings *p;
 185         enum omap_channel channel = dssdev->dispc_channel;
 186         struct dss_pll_clock_info hdmi_cinfo = { 0 };
 187         unsigned pc;
 188
 189         r = hdmi_power_on_core(dssdev);
 190         if (r)
 191                 return r;
 192
 193         p = &hdmi.cfg.timings;
 194
 195         DSSDBG("hdmi_power_on x_res= %d y_res = %d\n", p->x_res, p->y_res);
 196
 197         pc = p->pixelclock;
 198         if (p->double_pixel)
 199                 pc *= 2;
 200
 201         hdmi_pll_compute(&hdmi.pll, pc, &hdmi_cinfo);
 202
 203         /* disable and clear irqs */
 204         hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff);
 205         hdmi_wp_set_irqstatus(&hdmi.wp,
 206                         hdmi_wp_get_irqstatus(&hdmi.wp));
 207
 208         r = dss_pll_enable(&hdmi.pll.pll);
 209         if (r) {
 210                 DSSERR("Failed to enable PLL\n");
 211                 goto err_pll_enable;
 212         }
 213
 214         r = dss_pll_set_config(&hdmi.pll.pll, &hdmi_cinfo);
 215         if (r) {
 216                 DSSERR("Failed to configure PLL\n");
 217                 goto err_pll_cfg;
 218         }
 219
 220         r = hdmi_phy_configure(&hdmi.phy, hdmi_cinfo.clkdco,
 221                 hdmi_cinfo.clkout[0]);
 222         if (r) {
 223                 DSSDBG("Failed to start PHY\n");
 224                 goto err_phy_cfg;
 225         }
 226
 227         r = hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_LDOON);
 228         if (r)
 229                 goto err_phy_pwr;
 230
 231         hdmi5_configure(&hdmi.core, &hdmi.wp, &hdmi.cfg);
 232
 233         /* bypass TV gamma table */
 234         dispc_enable_gamma_table(0);
 235
 236         /* tv size */
 237         dss_mgr_set_timings(channel, p);
 238
 239         r = dss_mgr_enable(channel);
 240         if (r)
 241                 goto err_mgr_enable;
 242
 243         r = hdmi_wp_video_start(&hdmi.wp);
 244         if (r)
 245                 goto err_vid_enable;
 246
 247         hdmi_wp_set_irqenable(&hdmi.wp,
 248                         HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
 249
 250         return 0;
 251
 252 err_vid_enable:
 253         dss_mgr_disable(channel);
 254 err_mgr_enable:
 255         hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF);
 256 err_phy_pwr:
 257 err_phy_cfg:
 258 err_pll_cfg:
 259         dss_pll_disable(&hdmi.pll.pll);
 260 err_pll_enable:
 261         hdmi_power_off_core(dssdev);
 262         return -EIO;
 263 }
 264
 265 static void hdmi_power_off_full(struct omap_dss_device *dssdev)
 266 {
 267         enum omap_channel channel = dssdev->dispc_channel;
 268
 269         hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff);
 270
 271         hdmi_wp_video_stop(&hdmi.wp);
 272
 273         dss_mgr_disable(channel);
 274
 275         hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF);
 276
 277         dss_pll_disable(&hdmi.pll.pll);
 278
 279         hdmi_power_off_core(dssdev);
 280 }
 281
 282 static int hdmi_display_check_timing(struct omap_dss_device *dssdev,
 283                                         struct omap_video_timings *timings)
 284 {
 285         if (!dispc_mgr_timings_ok(dssdev->dispc_channel, timings))
 286                 return -EINVAL;
 287
 288         return 0;
 289 }
 290
 291 static void hdmi_display_set_timing(struct omap_dss_device *dssdev,
 292                 struct omap_video_timings *timings)
 293 {
 294         mutex_lock(&hdmi.lock);
 295
 296         hdmi.cfg.timings = *timings;
 297
 298         dispc_set_tv_pclk(timings->pixelclock);
 299
 300         mutex_unlock(&hdmi.lock);
 301 }
 302
 303 static void hdmi_display_get_timings(struct omap_dss_device *dssdev,
 304                 struct omap_video_timings *timings)
 305 {
 306         *timings = hdmi.cfg.timings;
 307 }
 308
 309 static void hdmi_dump_regs(struct seq_file *s)
 310 {
 311         mutex_lock(&hdmi.lock);
 312
 313         if (hdmi_runtime_get()) {
 314                 mutex_unlock(&hdmi.lock);
 315                 return;
 316         }
 317
 318         hdmi_wp_dump(&hdmi.wp, s);
 319         hdmi_pll_dump(&hdmi.pll, s);
 320         hdmi_phy_dump(&hdmi.phy, s);
 321         hdmi5_core_dump(&hdmi.core, s);
 322
 323         hdmi_runtime_put();
 324         mutex_unlock(&hdmi.lock);
 325 }
 326
 327 static int read_edid(u8 *buf, int len)
 328 {
 329         int r;
 330         int idlemode;
 331
 332         mutex_lock(&hdmi.lock);
 333
 334         r = hdmi_runtime_get();
 335         BUG_ON(r);
 336
 337         idlemode = REG_GET(hdmi.wp.base, HDMI_WP_SYSCONFIG, 3, 2);
 338         /* No-idle mode */
 339         REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
 340
 341         r = hdmi5_read_edid(&hdmi.core,  buf, len);
 342
 343         REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, idlemode, 3, 2);
 344
 345         hdmi_runtime_put();
 346         mutex_unlock(&hdmi.lock);
 347
 348         return r;
 349 }
 350
 351 static void hdmi_start_audio_stream(struct omap_hdmi *hd)
 352 {
 353         REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
 354         hdmi_wp_audio_enable(&hd->wp, true);
 355         hdmi_wp_audio_core_req_enable(&hd->wp, true);
 356 }
 357
 358 static void hdmi_stop_audio_stream(struct omap_hdmi *hd)
 359 {
 360         hdmi_wp_audio_core_req_enable(&hd->wp, false);
 361         hdmi_wp_audio_enable(&hd->wp, false);
 362         REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, hd->wp_idlemode, 3, 2);
 363 }
 364
 365 static int hdmi_display_enable(struct omap_dss_device *dssdev)
 366 {
 367         struct omap_dss_device *out = &hdmi.output;
 368         unsigned long flags;
 369         int r = 0;
 370
 371         DSSDBG("ENTER hdmi_display_enable\n");
 372
 373         mutex_lock(&hdmi.lock);
 374
 375         if (!out->dispc_channel_connected) {
 376                 DSSERR("failed to enable display: no output/manager\n");
 377                 r = -ENODEV;
 378                 goto err0;
 379         }
 380
 381         r = hdmi_power_on_full(dssdev);
 382         if (r) {
 383                 DSSERR("failed to power on device\n");
 384                 goto err0;
 385         }
 386
 387         if (hdmi.audio_configured) {
 388                 r = hdmi5_audio_config(&hdmi.core, &hdmi.wp, &hdmi.audio_config,
 389                                        hdmi.cfg.timings.pixelclock);
 390                 if (r) {
 391                         DSSERR("Error restoring audio configuration: %d", r);
 392                         hdmi.audio_abort_cb(&hdmi.pdev->dev);
 393                         hdmi.audio_configured = false;
 394                 }
 395         }
 396
 397         spin_lock_irqsave(&hdmi.audio_playing_lock, flags);
 398         if (hdmi.audio_configured && hdmi.audio_playing)
 399                 hdmi_start_audio_stream(&hdmi);
 400         hdmi.display_enabled = true;
 401         spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags);
 402
 403         mutex_unlock(&hdmi.lock);
 404         return 0;
 405
 406 err0:
 407         mutex_unlock(&hdmi.lock);
 408         return r;
 409 }
 410
 411 static void hdmi_display_disable(struct omap_dss_device *dssdev)
 412 {
 413         unsigned long flags;
 414
 415         DSSDBG("Enter hdmi_display_disable\n");
 416
 417         mutex_lock(&hdmi.lock);
 418
 419         spin_lock_irqsave(&hdmi.audio_playing_lock, flags);
 420         hdmi_stop_audio_stream(&hdmi);
 421         hdmi.display_enabled = false;
 422         spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags);
 423
 424         hdmi_power_off_full(dssdev);
 425
 426         mutex_unlock(&hdmi.lock);
 427 }
 428
 429 static int hdmi_core_enable(struct omap_dss_device *dssdev)
 430 {
 431         int r = 0;
 432
 433         DSSDBG("ENTER omapdss_hdmi_core_enable\n");
 434
 435         mutex_lock(&hdmi.lock);
 436
 437         r = hdmi_power_on_core(dssdev);
 438         if (r) {
 439                 DSSERR("failed to power on device\n");
 440                 goto err0;
 441         }
 442
 443         mutex_unlock(&hdmi.lock);
 444         return 0;
 445
 446 err0:
 447         mutex_unlock(&hdmi.lock);
 448         return r;
 449 }
 450
 451 static void hdmi_core_disable(struct omap_dss_device *dssdev)
 452 {
 453         DSSDBG("Enter omapdss_hdmi_core_disable\n");
 454
 455         mutex_lock(&hdmi.lock);
 456
 457         hdmi_power_off_core(dssdev);
 458
 459         mutex_unlock(&hdmi.lock);
 460 }
 461
 462 static int hdmi_connect(struct omap_dss_device *dssdev,
 463                 struct omap_dss_device *dst)
 464 {
 465         enum omap_channel channel = dssdev->dispc_channel;
 466         int r;
 467
 468         r = hdmi_init_regulator();
 469         if (r)
 470                 return r;
 471
 472         r = dss_mgr_connect(channel, dssdev);
 473         if (r)
 474                 return r;
 475
 476         r = omapdss_output_set_device(dssdev, dst);
 477         if (r) {
 478                 DSSERR("failed to connect output to new device: %s\n",
 479                                 dst->name);
 480                 dss_mgr_disconnect(channel, dssdev);
 481                 return r;
 482         }
 483
 484         return 0;
 485 }
 486
 487 static void hdmi_disconnect(struct omap_dss_device *dssdev,
 488                 struct omap_dss_device *dst)
 489 {
 490         enum omap_channel channel = dssdev->dispc_channel;
 491
 492         WARN_ON(dst != dssdev->dst);
 493
 494         if (dst != dssdev->dst)
 495                 return;
 496
 497         omapdss_output_unset_device(dssdev);
 498
 499         dss_mgr_disconnect(channel, dssdev);
 500 }
 501
 502 static int hdmi_read_edid(struct omap_dss_device *dssdev,
 503                 u8 *edid, int len)
 504 {
 505         bool need_enable;
 506         int r;
 507
 508         need_enable = hdmi.core_enabled == false;
 509
 510         if (need_enable) {
 511                 r = hdmi_core_enable(dssdev);
 512                 if (r)
 513                         return r;
 514         }
 515
 516         r = read_edid(edid, len);
 517
 518         if (need_enable)
 519                 hdmi_core_disable(dssdev);
 520
 521         return r;
 522 }
 523
 524 static int hdmi_set_infoframe(struct omap_dss_device *dssdev,
 525                 const struct hdmi_avi_infoframe *avi)
 526 {
 527         hdmi.cfg.infoframe = *avi;
 528         return 0;
 529 }
 530
 531 static int hdmi_set_hdmi_mode(struct omap_dss_device *dssdev,
 532                 bool hdmi_mode)
 533 {
 534         hdmi.cfg.hdmi_dvi_mode = hdmi_mode ? HDMI_HDMI : HDMI_DVI;
 535         return 0;
 536 }
 537
 538 static const struct omapdss_hdmi_ops hdmi_ops = {
 539         .connect                = hdmi_connect,
 540         .disconnect             = hdmi_disconnect,
 541
 542         .enable                 = hdmi_display_enable,
 543         .disable                = hdmi_display_disable,
 544
 545         .check_timings          = hdmi_display_check_timing,
 546         .set_timings            = hdmi_display_set_timing,
 547         .get_timings            = hdmi_display_get_timings,
 548
 549         .read_edid              = hdmi_read_edid,
 550         .set_infoframe          = hdmi_set_infoframe,
 551         .set_hdmi_mode          = hdmi_set_hdmi_mode,
 552 };
 553
 554 static void hdmi_init_output(struct platform_device *pdev)
 555 {
 556         struct omap_dss_device *out = &hdmi.output;
 557
 558         out->dev = &pdev->dev;
 559         out->id = OMAP_DSS_OUTPUT_HDMI;
 560         out->output_type = OMAP_DISPLAY_TYPE_HDMI;
 561         out->name = "hdmi.0";
 562         out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
 563         out->ops.hdmi = &hdmi_ops;
 564         out->owner = THIS_MODULE;
 565
 566         omapdss_register_output(out);
 567 }
 568
 569 static void hdmi_uninit_output(struct platform_device *pdev)
 570 {
 571         struct omap_dss_device *out = &hdmi.output;
 572
 573         omapdss_unregister_output(out);
 574 }
 575
 576 static int hdmi_probe_of(struct platform_device *pdev)
 577 {
 578         struct device_node *node = pdev->dev.of_node;
 579         struct device_node *ep;
 580         int r;
 581
 582         ep = omapdss_of_get_first_endpoint(node);
 583         if (!ep)
 584                 return 0;
 585
 586         r = hdmi_parse_lanes_of(pdev, ep, &hdmi.phy);
 587         if (r)
 588                 goto err;
 589
 590         of_node_put(ep);
 591         return 0;
 592
 593 err:
 594         of_node_put(ep);
 595         return r;
 596 }
 597
 598 /* Audio callbacks */
 599 static int hdmi_audio_startup(struct device *dev,
 600                               void (*abort_cb)(struct device *dev))
 601 {
 602         struct omap_hdmi *hd = dev_get_drvdata(dev);
 603         int ret = 0;
 604
 605         mutex_lock(&hd->lock);
 606
 607         if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) {
 608                 ret = -EPERM;
 609                 goto out;
 610         }
 611
 612         hd->audio_abort_cb = abort_cb;
 613
 614 out:
 615         mutex_unlock(&hd->lock);
 616
 617         return ret;
 618 }
 619
 620 static int hdmi_audio_shutdown(struct device *dev)
 621 {
 622         struct omap_hdmi *hd = dev_get_drvdata(dev);
 623
 624         mutex_lock(&hd->lock);
 625         hd->audio_abort_cb = NULL;
 626         hd->audio_configured = false;
 627         hd->audio_playing = false;
 628         mutex_unlock(&hd->lock);
 629
 630         return 0;
 631 }
 632
 633 static int hdmi_audio_start(struct device *dev)
 634 {
 635         struct omap_hdmi *hd = dev_get_drvdata(dev);
 636         unsigned long flags;
 637
 638         WARN_ON(!hdmi_mode_has_audio(&hd->cfg));
 639
 640         spin_lock_irqsave(&hd->audio_playing_lock, flags);
 641
 642         if (hd->display_enabled)
 643                 hdmi_start_audio_stream(hd);
 644         hd->audio_playing = true;
 645
 646         spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
 647         return 0;
 648 }
 649
 650 static void hdmi_audio_stop(struct device *dev)
 651 {
 652         struct omap_hdmi *hd = dev_get_drvdata(dev);
 653         unsigned long flags;
 654
 655         WARN_ON(!hdmi_mode_has_audio(&hd->cfg));
 656
 657         spin_lock_irqsave(&hd->audio_playing_lock, flags);
 658
 659         if (hd->display_enabled)
 660                 hdmi_stop_audio_stream(hd);
 661         hd->audio_playing = false;
 662
 663         spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
 664 }
 665
 666 static int hdmi_audio_config(struct device *dev,
 667                              struct omap_dss_audio *dss_audio)
 668 {
 669         struct omap_hdmi *hd = dev_get_drvdata(dev);
 670         int ret;
 671
 672         mutex_lock(&hd->lock);
 673
 674         if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) {
 675                 ret = -EPERM;
 676                 goto out;
 677         }
 678
 679         ret = hdmi5_audio_config(&hd->core, &hd->wp, dss_audio,
 680                                  hd->cfg.timings.pixelclock);
 681
 682         if (!ret) {
 683                 hd->audio_configured = true;
 684                 hd->audio_config = *dss_audio;
 685         }
 686 out:
 687         mutex_unlock(&hd->lock);
 688
 689         return ret;
 690 }
 691
 692 static const struct omap_hdmi_audio_ops hdmi_audio_ops = {
 693         .audio_startup = hdmi_audio_startup,
 694         .audio_shutdown = hdmi_audio_shutdown,
 695         .audio_start = hdmi_audio_start,
 696         .audio_stop = hdmi_audio_stop,
 697         .audio_config = hdmi_audio_config,
 698 };
 699
 700 static int hdmi_audio_register(struct device *dev)
 701 {
 702         struct omap_hdmi_audio_pdata pdata = {
 703                 .dev = dev,
 704                 .dss_version = omapdss_get_version(),
 705                 .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi.wp),
 706                 .ops = &hdmi_audio_ops,
 707         };
 708
 709         hdmi.audio_pdev = platform_device_register_data(
 710                 dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO,
 711                 &pdata, sizeof(pdata));
 712
 713         if (IS_ERR(hdmi.audio_pdev))
 714                 return PTR_ERR(hdmi.audio_pdev);
 715
 716         hdmi_runtime_get();
 717         hdmi.wp_idlemode =
 718                 REG_GET(hdmi.wp.base, HDMI_WP_SYSCONFIG, 3, 2);
 719         hdmi_runtime_put();
 720
 721         return 0;
 722 }
 723
 724 /* HDMI HW IP initialisation */
 725 static int hdmi5_bind(struct device *dev, struct device *master, void *data)
 726 {
 727         struct platform_device *pdev = to_platform_device(dev);
 728         int r;
 729         int irq;
 730
 731         hdmi.pdev = pdev;
 732         dev_set_drvdata(&pdev->dev, &hdmi);
 733
 734         mutex_init(&hdmi.lock);
 735         spin_lock_init(&hdmi.audio_playing_lock);
 736
 737         if (pdev->dev.of_node) {
 738                 r = hdmi_probe_of(pdev);
 739                 if (r)
 740                         return r;
 741         }
 742
 743         r = hdmi_wp_init(pdev, &hdmi.wp);
 744         if (r)
 745                 return r;
 746
 747         r = hdmi_pll_init(pdev, &hdmi.pll, &hdmi.wp);
 748         if (r)
 749                 return r;
 750
 751         r = hdmi_phy_init(pdev, &hdmi.phy);
 752         if (r)
 753                 goto err;
 754
 755         r = hdmi5_core_init(pdev, &hdmi.core);
 756         if (r)
 757                 goto err;
 758
 759         irq = platform_get_irq(pdev, 0);
 760         if (irq < 0) {
 761                 DSSERR("platform_get_irq failed\n");
 762                 r = -ENODEV;
 763                 goto err;
 764         }
 765
 766         r = devm_request_threaded_irq(&pdev->dev, irq,
 767                         NULL, hdmi_irq_handler,
 768                         IRQF_ONESHOT, "OMAP HDMI", &hdmi.wp);
 769         if (r) {
 770                 DSSERR("HDMI IRQ request failed\n");
 771                 goto err;
 772         }
 773
 774         pm_runtime_enable(&pdev->dev);
 775
 776         hdmi_init_output(pdev);
 777
 778         r = hdmi_audio_register(&pdev->dev);
 779         if (r) {
 780                 DSSERR("Registering HDMI audio failed %d\n", r);
 781                 hdmi_uninit_output(pdev);
 782                 pm_runtime_disable(&pdev->dev);
 783                 return r;
 784         }
 785
 786         dss_debugfs_create_file("hdmi", hdmi_dump_regs);
 787
 788         return 0;
 789 err:
 790         hdmi_pll_uninit(&hdmi.pll);
 791         return r;
 792 }
 793
 794 static void hdmi5_unbind(struct device *dev, struct device *master, void *data)
 795 {
 796         struct platform_device *pdev = to_platform_device(dev);
 797
 798         if (hdmi.audio_pdev)
 799                 platform_device_unregister(hdmi.audio_pdev);
 800
 801         hdmi_uninit_output(pdev);
 802
 803         hdmi_pll_uninit(&hdmi.pll);
 804
 805         pm_runtime_disable(&pdev->dev);
 806 }
 807
 808 static const struct component_ops hdmi5_component_ops = {
 809         .bind   = hdmi5_bind,
 810         .unbind = hdmi5_unbind,
 811 };
 812
 813 static int hdmi5_probe(struct platform_device *pdev)
 814 {
 815         return component_add(&pdev->dev, &hdmi5_component_ops);
 816 }
 817
 818 static int hdmi5_remove(struct platform_device *pdev)
 819 {
 820         component_del(&pdev->dev, &hdmi5_component_ops);
 821         return 0;
 822 }
 823
 824 static int hdmi_runtime_suspend(struct device *dev)
 825 {
 826         dispc_runtime_put();
 827
 828         return 0;
 829 }
 830
 831 static int hdmi_runtime_resume(struct device *dev)
 832 {
 833         int r;
 834
 835         r = dispc_runtime_get();
 836         if (r < 0)
 837                 return r;
 838
 839         return 0;
 840 }
 841
 842 static const struct dev_pm_ops hdmi_pm_ops = {
 843         .runtime_suspend = hdmi_runtime_suspend,
 844         .runtime_resume = hdmi_runtime_resume,
 845 };
 846
 847 static const struct of_device_id hdmi_of_match[] = {
 848         { .compatible = "ti,omap5-hdmi", },
 849         { .compatible = "ti,dra7-hdmi", },
 850         {},
 851 };
 852
 853 static struct platform_driver omapdss_hdmihw_driver = {
 854         .probe          = hdmi5_probe,
 855         .remove         = hdmi5_remove,
 856         .driver         = {
 857                 .name   = "omapdss_hdmi5",
 858                 .pm     = &hdmi_pm_ops,
 859                 .of_match_table = hdmi_of_match,
 860                 .suppress_bind_attrs = true,
 861         },
 862 };
 863
 864 int __init hdmi5_init_platform_driver(void)
 865 {
 866         return platform_driver_register(&omapdss_hdmihw_driver);
 867 }
 868
 869 void hdmi5_uninit_platform_driver(void)
 870 {
 871         platform_driver_unregister(&omapdss_hdmihw_driver);
 872 }