drivers/video/fbdev/omap2/omapfb/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/omapfb_dss.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         if (WARN_ON(r < 0)) {
  58                 pm_runtime_put_sync(&hdmi.pdev->dev);
  59                 return r;
  60         }
  61
  62         return 0;
  63 }
  64
  65 static void hdmi_runtime_put(void)
  66 {
  67         int r;
  68
  69         DSSDBG("hdmi_runtime_put\n");
  70
  71         r = pm_runtime_put_sync(&hdmi.pdev->dev);
  72         WARN_ON(r < 0 && r != -ENOSYS);
  73 }
  74
  75 static irqreturn_t hdmi_irq_handler(int irq, void *data)
  76 {
  77         struct hdmi_wp_data *wp = data;
  78         u32 irqstatus;
  79
  80         irqstatus = hdmi_wp_get_irqstatus(wp);
  81         hdmi_wp_set_irqstatus(wp, irqstatus);
  82
  83         if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&
  84                         irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
  85                 u32 v;
  86                 /*
  87                  * If we get both connect and disconnect interrupts at the same
  88                  * time, turn off the PHY, clear interrupts, and restart, which
  89                  * raises connect interrupt if a cable is connected, or nothing
  90                  * if cable is not connected.
  91                  */
  92
  93                 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);
  94
  95                 /*
  96                  * We always get bogus CONNECT & DISCONNECT interrupts when
  97                  * setting the PHY to LDOON. To ignore those, we force the RXDET
  98                  * line to 0 until the PHY power state has been changed.
  99                  */
 100                 v = hdmi_read_reg(hdmi.phy.base, HDMI_TXPHY_PAD_CFG_CTRL);
 101                 v = FLD_MOD(v, 1, 15, 15); /* FORCE_RXDET_HIGH */
 102                 v = FLD_MOD(v, 0, 14, 7); /* RXDET_LINE */
 103                 hdmi_write_reg(hdmi.phy.base, HDMI_TXPHY_PAD_CFG_CTRL, v);
 104
 105                 hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT |
 106                                 HDMI_IRQ_LINK_DISCONNECT);
 107
 108                 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
 109
 110                 REG_FLD_MOD(hdmi.phy.base, HDMI_TXPHY_PAD_CFG_CTRL, 0, 15, 15);
 111
 112         } else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
 113                 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON);
 114         } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
 115                 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
 116         }
 117
 118         return IRQ_HANDLED;
 119 }
 120
 121 static int hdmi_init_regulator(void)
 122 {
 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         hdmi.vdda_reg = reg;
 135
 136         return 0;
 137 }
 138
 139 static int hdmi_power_on_core(struct omap_dss_device *dssdev)
 140 {
 141         int r;
 142
 143         r = regulator_enable(hdmi.vdda_reg);
 144         if (r)
 145                 return r;
 146
 147         r = hdmi_runtime_get();
 148         if (r)
 149                 goto err_runtime_get;
 150
 151         /* Make selection of HDMI in DSS */
 152         dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK);
 153
 154         hdmi.core_enabled = true;
 155
 156         return 0;
 157
 158 err_runtime_get:
 159         regulator_disable(hdmi.vdda_reg);
 160
 161         return r;
 162 }
 163
 164 static void hdmi_power_off_core(struct omap_dss_device *dssdev)
 165 {
 166         hdmi.core_enabled = false;
 167
 168         hdmi_runtime_put();
 169         regulator_disable(hdmi.vdda_reg);
 170 }
 171
 172 static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 173 {
 174         int r;
 175         struct omap_video_timings *p;
 176         struct omap_overlay_manager *mgr = hdmi.output.manager;
 177         struct dss_pll_clock_info hdmi_cinfo = { 0 };
 178
 179         r = hdmi_power_on_core(dssdev);
 180         if (r)
 181                 return r;
 182
 183         p = &hdmi.cfg.timings;
 184
 185         DSSDBG("hdmi_power_on x_res= %d y_res = %d\n", p->x_res, p->y_res);
 186
 187         hdmi_pll_compute(&hdmi.pll, p->pixelclock, &hdmi_cinfo);
 188
 189         /* disable and clear irqs */
 190         hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff);
 191         hdmi_wp_set_irqstatus(&hdmi.wp,
 192                         hdmi_wp_get_irqstatus(&hdmi.wp));
 193
 194         r = dss_pll_enable(&hdmi.pll.pll);
 195         if (r) {
 196                 DSSERR("Failed to enable PLL\n");
 197                 goto err_pll_enable;
 198         }
 199
 200         r = dss_pll_set_config(&hdmi.pll.pll, &hdmi_cinfo);
 201         if (r) {
 202                 DSSERR("Failed to configure PLL\n");
 203                 goto err_pll_cfg;
 204         }
 205
 206         r = hdmi_phy_configure(&hdmi.phy, hdmi_cinfo.clkdco,
 207                 hdmi_cinfo.clkout[0]);
 208         if (r) {
 209                 DSSDBG("Failed to start PHY\n");
 210                 goto err_phy_cfg;
 211         }
 212
 213         r = hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_LDOON);
 214         if (r)
 215                 goto err_phy_pwr;
 216
 217         hdmi5_configure(&hdmi.core, &hdmi.wp, &hdmi.cfg);
 218
 219         /* bypass TV gamma table */
 220         dispc_enable_gamma_table(0);
 221
 222         /* tv size */
 223         dss_mgr_set_timings(mgr, p);
 224
 225         r = hdmi_wp_video_start(&hdmi.wp);
 226         if (r)
 227                 goto err_vid_enable;
 228
 229         r = dss_mgr_enable(mgr);
 230         if (r)
 231                 goto err_mgr_enable;
 232
 233         hdmi_wp_set_irqenable(&hdmi.wp,
 234                         HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
 235
 236         return 0;
 237
 238 err_mgr_enable:
 239         hdmi_wp_video_stop(&hdmi.wp);
 240 err_vid_enable:
 241         hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF);
 242 err_phy_pwr:
 243 err_phy_cfg:
 244 err_pll_cfg:
 245         dss_pll_disable(&hdmi.pll.pll);
 246 err_pll_enable:
 247         hdmi_power_off_core(dssdev);
 248         return -EIO;
 249 }
 250
 251 static void hdmi_power_off_full(struct omap_dss_device *dssdev)
 252 {
 253         struct omap_overlay_manager *mgr = hdmi.output.manager;
 254
 255         hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff);
 256
 257         dss_mgr_disable(mgr);
 258
 259         hdmi_wp_video_stop(&hdmi.wp);
 260
 261         hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF);
 262
 263         dss_pll_disable(&hdmi.pll.pll);
 264
 265         hdmi_power_off_core(dssdev);
 266 }
 267
 268 static int hdmi_display_check_timing(struct omap_dss_device *dssdev,
 269                                         struct omap_video_timings *timings)
 270 {
 271         struct omap_dss_device *out = &hdmi.output;
 272
 273         /* TODO: proper interlace support */
 274         if (timings->interlace)
 275                 return -EINVAL;
 276
 277         if (!dispc_mgr_timings_ok(out->dispc_channel, timings))
 278                 return -EINVAL;
 279
 280         return 0;
 281 }
 282
 283 static void hdmi_display_set_timing(struct omap_dss_device *dssdev,
 284                 struct omap_video_timings *timings)
 285 {
 286         mutex_lock(&hdmi.lock);
 287
 288         hdmi.cfg.timings = *timings;
 289
 290         dispc_set_tv_pclk(timings->pixelclock);
 291
 292         mutex_unlock(&hdmi.lock);
 293 }
 294
 295 static void hdmi_display_get_timings(struct omap_dss_device *dssdev,
 296                 struct omap_video_timings *timings)
 297 {
 298         *timings = hdmi.cfg.timings;
 299 }
 300
 301 static void hdmi_dump_regs(struct seq_file *s)
 302 {
 303         mutex_lock(&hdmi.lock);
 304
 305         if (hdmi_runtime_get()) {
 306                 mutex_unlock(&hdmi.lock);
 307                 return;
 308         }
 309
 310         hdmi_wp_dump(&hdmi.wp, s);
 311         hdmi_pll_dump(&hdmi.pll, s);
 312         hdmi_phy_dump(&hdmi.phy, s);
 313         hdmi5_core_dump(&hdmi.core, s);
 314
 315         hdmi_runtime_put();
 316         mutex_unlock(&hdmi.lock);
 317 }
 318
 319 static int read_edid(u8 *buf, int len)
 320 {
 321         int r;
 322         int idlemode;
 323
 324         mutex_lock(&hdmi.lock);
 325
 326         r = hdmi_runtime_get();
 327         BUG_ON(r);
 328
 329         idlemode = REG_GET(hdmi.wp.base, HDMI_WP_SYSCONFIG, 3, 2);
 330         /* No-idle mode */
 331         REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
 332
 333         r = hdmi5_read_edid(&hdmi.core,  buf, len);
 334
 335         REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, idlemode, 3, 2);
 336
 337         hdmi_runtime_put();
 338         mutex_unlock(&hdmi.lock);
 339
 340         return r;
 341 }
 342
 343 static void hdmi_start_audio_stream(struct omap_hdmi *hd)
 344 {
 345         REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2);
 346         hdmi_wp_audio_enable(&hd->wp, true);
 347         hdmi_wp_audio_core_req_enable(&hd->wp, true);
 348 }
 349
 350 static void hdmi_stop_audio_stream(struct omap_hdmi *hd)
 351 {
 352         hdmi_wp_audio_core_req_enable(&hd->wp, false);
 353         hdmi_wp_audio_enable(&hd->wp, false);
 354         REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, hd->wp_idlemode, 3, 2);
 355 }
 356
 357 static int hdmi_display_enable(struct omap_dss_device *dssdev)
 358 {
 359         struct omap_dss_device *out = &hdmi.output;
 360         unsigned long flags;
 361         int r = 0;
 362
 363         DSSDBG("ENTER hdmi_display_enable\n");
 364
 365         mutex_lock(&hdmi.lock);
 366
 367         if (out->manager == NULL) {
 368                 DSSERR("failed to enable display: no output/manager\n");
 369                 r = -ENODEV;
 370                 goto err0;
 371         }
 372
 373         r = hdmi_power_on_full(dssdev);
 374         if (r) {
 375                 DSSERR("failed to power on device\n");
 376                 goto err0;
 377         }
 378
 379         if (hdmi.audio_configured) {
 380                 r = hdmi5_audio_config(&hdmi.core, &hdmi.wp, &hdmi.audio_config,
 381                                        hdmi.cfg.timings.pixelclock);
 382                 if (r) {
 383                         DSSERR("Error restoring audio configuration: %d", r);
 384                         hdmi.audio_abort_cb(&hdmi.pdev->dev);
 385                         hdmi.audio_configured = false;
 386                 }
 387         }
 388
 389         spin_lock_irqsave(&hdmi.audio_playing_lock, flags);
 390         if (hdmi.audio_configured && hdmi.audio_playing)
 391                 hdmi_start_audio_stream(&hdmi);
 392         hdmi.display_enabled = true;
 393         spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags);
 394
 395         mutex_unlock(&hdmi.lock);
 396         return 0;
 397
 398 err0:
 399         mutex_unlock(&hdmi.lock);
 400         return r;
 401 }
 402
 403 static void hdmi_display_disable(struct omap_dss_device *dssdev)
 404 {
 405         unsigned long flags;
 406
 407         DSSDBG("Enter hdmi_display_disable\n");
 408
 409         mutex_lock(&hdmi.lock);
 410
 411         spin_lock_irqsave(&hdmi.audio_playing_lock, flags);
 412         hdmi_stop_audio_stream(&hdmi);
 413         hdmi.display_enabled = false;
 414         spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags);
 415
 416         hdmi_power_off_full(dssdev);
 417
 418         mutex_unlock(&hdmi.lock);
 419 }
 420
 421 static int hdmi_core_enable(struct omap_dss_device *dssdev)
 422 {
 423         int r = 0;
 424
 425         DSSDBG("ENTER omapdss_hdmi_core_enable\n");
 426
 427         mutex_lock(&hdmi.lock);
 428
 429         r = hdmi_power_on_core(dssdev);
 430         if (r) {
 431                 DSSERR("failed to power on device\n");
 432                 goto err0;
 433         }
 434
 435         mutex_unlock(&hdmi.lock);
 436         return 0;
 437
 438 err0:
 439         mutex_unlock(&hdmi.lock);
 440         return r;
 441 }
 442
 443 static void hdmi_core_disable(struct omap_dss_device *dssdev)
 444 {
 445         DSSDBG("Enter omapdss_hdmi_core_disable\n");
 446
 447         mutex_lock(&hdmi.lock);
 448
 449         hdmi_power_off_core(dssdev);
 450
 451         mutex_unlock(&hdmi.lock);
 452 }
 453
 454 static int hdmi_connect(struct omap_dss_device *dssdev,
 455                 struct omap_dss_device *dst)
 456 {
 457         struct omap_overlay_manager *mgr;
 458         int r;
 459
 460         r = hdmi_init_regulator();
 461         if (r)
 462                 return r;
 463
 464         mgr = omap_dss_get_overlay_manager(dssdev->dispc_channel);
 465         if (!mgr)
 466                 return -ENODEV;
 467
 468         r = dss_mgr_connect(mgr, dssdev);
 469         if (r)
 470                 return r;
 471
 472         r = omapdss_output_set_device(dssdev, dst);
 473         if (r) {
 474                 DSSERR("failed to connect output to new device: %s\n",
 475                                 dst->name);
 476                 dss_mgr_disconnect(mgr, dssdev);
 477                 return r;
 478         }
 479
 480         return 0;
 481 }
 482
 483 static void hdmi_disconnect(struct omap_dss_device *dssdev,
 484                 struct omap_dss_device *dst)
 485 {
 486         WARN_ON(dst != dssdev->dst);
 487
 488         if (dst != dssdev->dst)
 489                 return;
 490
 491         omapdss_output_unset_device(dssdev);
 492
 493         if (dssdev->manager)
 494                 dss_mgr_disconnect(dssdev->manager, dssdev);
 495 }
 496
 497 static int hdmi_read_edid(struct omap_dss_device *dssdev,
 498                 u8 *edid, int len)
 499 {
 500         bool need_enable;
 501         int r;
 502
 503         need_enable = hdmi.core_enabled == false;
 504
 505         if (need_enable) {
 506                 r = hdmi_core_enable(dssdev);
 507                 if (r)
 508                         return r;
 509         }
 510
 511         r = read_edid(edid, len);
 512
 513         if (need_enable)
 514                 hdmi_core_disable(dssdev);
 515
 516         return r;
 517 }
 518
 519 static int hdmi_set_infoframe(struct omap_dss_device *dssdev,
 520                 const struct hdmi_avi_infoframe *avi)
 521 {
 522         hdmi.cfg.infoframe = *avi;
 523         return 0;
 524 }
 525
 526 static int hdmi_set_hdmi_mode(struct omap_dss_device *dssdev,
 527                 bool hdmi_mode)
 528 {
 529         hdmi.cfg.hdmi_dvi_mode = hdmi_mode ? HDMI_HDMI : HDMI_DVI;
 530         return 0;
 531 }
 532
 533 static const struct omapdss_hdmi_ops hdmi_ops = {
 534         .connect                = hdmi_connect,
 535         .disconnect             = hdmi_disconnect,
 536
 537         .enable                 = hdmi_display_enable,
 538         .disable                = hdmi_display_disable,
 539
 540         .check_timings          = hdmi_display_check_timing,
 541         .set_timings            = hdmi_display_set_timing,
 542         .get_timings            = hdmi_display_get_timings,
 543
 544         .read_edid              = hdmi_read_edid,
 545         .set_infoframe          = hdmi_set_infoframe,
 546         .set_hdmi_mode          = hdmi_set_hdmi_mode,
 547 };
 548
 549 static void hdmi_init_output(struct platform_device *pdev)
 550 {
 551         struct omap_dss_device *out = &hdmi.output;
 552
 553         out->dev = &pdev->dev;
 554         out->id = OMAP_DSS_OUTPUT_HDMI;
 555         out->output_type = OMAP_DISPLAY_TYPE_HDMI;
 556         out->name = "hdmi.0";
 557         out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
 558         out->ops.hdmi = &hdmi_ops;
 559         out->owner = THIS_MODULE;
 560
 561         omapdss_register_output(out);
 562 }
 563
 564 static void hdmi_uninit_output(struct platform_device *pdev)
 565 {
 566         struct omap_dss_device *out = &hdmi.output;
 567
 568         omapdss_unregister_output(out);
 569 }
 570
 571 static int hdmi_probe_of(struct platform_device *pdev)
 572 {
 573         struct device_node *node = pdev->dev.of_node;
 574         struct device_node *ep;
 575         int r;
 576
 577         ep = omapdss_of_get_first_endpoint(node);
 578         if (!ep)
 579                 return 0;
 580
 581         r = hdmi_parse_lanes_of(pdev, ep, &hdmi.phy);
 582         if (r)
 583                 goto err;
 584
 585         of_node_put(ep);
 586         return 0;
 587
 588 err:
 589         of_node_put(ep);
 590         return r;
 591 }
 592
 593 /* Audio callbacks */
 594 static int hdmi_audio_startup(struct device *dev,
 595                               void (*abort_cb)(struct device *dev))
 596 {
 597         struct omap_hdmi *hd = dev_get_drvdata(dev);
 598         int ret = 0;
 599
 600         mutex_lock(&hd->lock);
 601
 602         if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) {
 603                 ret = -EPERM;
 604                 goto out;
 605         }
 606
 607         hd->audio_abort_cb = abort_cb;
 608
 609 out:
 610         mutex_unlock(&hd->lock);
 611
 612         return ret;
 613 }
 614
 615 static int hdmi_audio_shutdown(struct device *dev)
 616 {
 617         struct omap_hdmi *hd = dev_get_drvdata(dev);
 618
 619         mutex_lock(&hd->lock);
 620         hd->audio_abort_cb = NULL;
 621         hd->audio_configured = false;
 622         hd->audio_playing = false;
 623         mutex_unlock(&hd->lock);
 624
 625         return 0;
 626 }
 627
 628 static int hdmi_audio_start(struct device *dev)
 629 {
 630         struct omap_hdmi *hd = dev_get_drvdata(dev);
 631         unsigned long flags;
 632
 633         WARN_ON(!hdmi_mode_has_audio(&hd->cfg));
 634
 635         spin_lock_irqsave(&hd->audio_playing_lock, flags);
 636
 637         if (hd->display_enabled)
 638                 hdmi_start_audio_stream(hd);
 639         hd->audio_playing = true;
 640
 641         spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
 642         return 0;
 643 }
 644
 645 static void hdmi_audio_stop(struct device *dev)
 646 {
 647         struct omap_hdmi *hd = dev_get_drvdata(dev);
 648         unsigned long flags;
 649
 650         WARN_ON(!hdmi_mode_has_audio(&hd->cfg));
 651
 652         spin_lock_irqsave(&hd->audio_playing_lock, flags);
 653
 654         if (hd->display_enabled)
 655                 hdmi_stop_audio_stream(hd);
 656         hd->audio_playing = false;
 657
 658         spin_unlock_irqrestore(&hd->audio_playing_lock, flags);
 659 }
 660
 661 static int hdmi_audio_config(struct device *dev,
 662                              struct omap_dss_audio *dss_audio)
 663 {
 664         struct omap_hdmi *hd = dev_get_drvdata(dev);
 665         int ret;
 666
 667         mutex_lock(&hd->lock);
 668
 669         if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) {
 670                 ret = -EPERM;
 671                 goto out;
 672         }
 673
 674         ret = hdmi5_audio_config(&hd->core, &hd->wp, dss_audio,
 675                                  hd->cfg.timings.pixelclock);
 676
 677         if (!ret) {
 678                 hd->audio_configured = true;
 679                 hd->audio_config = *dss_audio;
 680         }
 681 out:
 682         mutex_unlock(&hd->lock);
 683
 684         return ret;
 685 }
 686
 687 static const struct omap_hdmi_audio_ops hdmi_audio_ops = {
 688         .audio_startup = hdmi_audio_startup,
 689         .audio_shutdown = hdmi_audio_shutdown,
 690         .audio_start = hdmi_audio_start,
 691         .audio_stop = hdmi_audio_stop,
 692         .audio_config = hdmi_audio_config,
 693 };
 694
 695 static int hdmi_audio_register(struct device *dev)
 696 {
 697         struct omap_hdmi_audio_pdata pdata = {
 698                 .dev = dev,
 699                 .version = 5,
 700                 .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi.wp),
 701                 .ops = &hdmi_audio_ops,
 702         };
 703
 704         hdmi.audio_pdev = platform_device_register_data(
 705                 dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO,
 706                 &pdata, sizeof(pdata));
 707
 708         if (IS_ERR(hdmi.audio_pdev))
 709                 return PTR_ERR(hdmi.audio_pdev);
 710
 711         hdmi_runtime_get();
 712         hdmi.wp_idlemode =
 713                 REG_GET(hdmi.wp.base, HDMI_WP_SYSCONFIG, 3, 2);
 714         hdmi_runtime_put();
 715
 716         return 0;
 717 }
 718
 719 /* HDMI HW IP initialisation */
 720 static int hdmi5_bind(struct device *dev, struct device *master, void *data)
 721 {
 722         struct platform_device *pdev = to_platform_device(dev);
 723         int r;
 724         int irq;
 725
 726         hdmi.pdev = pdev;
 727         dev_set_drvdata(&pdev->dev, &hdmi);
 728
 729         mutex_init(&hdmi.lock);
 730         spin_lock_init(&hdmi.audio_playing_lock);
 731
 732         if (pdev->dev.of_node) {
 733                 r = hdmi_probe_of(pdev);
 734                 if (r)
 735                         return r;
 736         }
 737
 738         r = hdmi_wp_init(pdev, &hdmi.wp);
 739         if (r)
 740                 return r;
 741
 742         r = hdmi_pll_init(pdev, &hdmi.pll, &hdmi.wp);
 743         if (r)
 744                 return r;
 745
 746         r = hdmi_phy_init(pdev, &hdmi.phy);
 747         if (r)
 748                 goto err;
 749
 750         r = hdmi5_core_init(pdev, &hdmi.core);
 751         if (r)
 752                 goto err;
 753
 754         irq = platform_get_irq(pdev, 0);
 755         if (irq < 0) {
 756                 DSSERR("platform_get_irq failed\n");
 757                 r = -ENODEV;
 758                 goto err;
 759         }
 760
 761         r = devm_request_threaded_irq(&pdev->dev, irq,
 762                         NULL, hdmi_irq_handler,
 763                         IRQF_ONESHOT, "OMAP HDMI", &hdmi.wp);
 764         if (r) {
 765                 DSSERR("HDMI IRQ request failed\n");
 766                 goto err;
 767         }
 768
 769         pm_runtime_enable(&pdev->dev);
 770
 771         hdmi_init_output(pdev);
 772
 773         r = hdmi_audio_register(&pdev->dev);
 774         if (r) {
 775                 DSSERR("Registering HDMI audio failed %d\n", r);
 776                 hdmi_uninit_output(pdev);
 777                 pm_runtime_disable(&pdev->dev);
 778                 return r;
 779         }
 780
 781         dss_debugfs_create_file("hdmi", hdmi_dump_regs);
 782
 783         return 0;
 784 err:
 785         hdmi_pll_uninit(&hdmi.pll);
 786         return r;
 787 }
 788
 789 static void hdmi5_unbind(struct device *dev, struct device *master, void *data)
 790 {
 791         struct platform_device *pdev = to_platform_device(dev);
 792
 793         if (hdmi.audio_pdev)
 794                 platform_device_unregister(hdmi.audio_pdev);
 795
 796         hdmi_uninit_output(pdev);
 797
 798         hdmi_pll_uninit(&hdmi.pll);
 799
 800         pm_runtime_disable(&pdev->dev);
 801 }
 802
 803 static const struct component_ops hdmi5_component_ops = {
 804         .bind   = hdmi5_bind,
 805         .unbind = hdmi5_unbind,
 806 };
 807
 808 static int hdmi5_probe(struct platform_device *pdev)
 809 {
 810         return component_add(&pdev->dev, &hdmi5_component_ops);
 811 }
 812
 813 static int hdmi5_remove(struct platform_device *pdev)
 814 {
 815         component_del(&pdev->dev, &hdmi5_component_ops);
 816         return 0;
 817 }
 818
 819 static int hdmi_runtime_suspend(struct device *dev)
 820 {
 821         dispc_runtime_put();
 822
 823         return 0;
 824 }
 825
 826 static int hdmi_runtime_resume(struct device *dev)
 827 {
 828         int r;
 829
 830         r = dispc_runtime_get();
 831         if (r < 0)
 832                 return r;
 833
 834         return 0;
 835 }
 836
 837 static const struct dev_pm_ops hdmi_pm_ops = {
 838         .runtime_suspend = hdmi_runtime_suspend,
 839         .runtime_resume = hdmi_runtime_resume,
 840 };
 841
 842 static const struct of_device_id hdmi_of_match[] = {
 843         { .compatible = "ti,omap5-hdmi", },
 844         { .compatible = "ti,dra7-hdmi", },
 845         {},
 846 };
 847
 848 static struct platform_driver omapdss_hdmihw_driver = {
 849         .probe          = hdmi5_probe,
 850         .remove         = hdmi5_remove,
 851         .driver         = {
 852                 .name   = "omapdss_hdmi5",
 853                 .pm     = &hdmi_pm_ops,
 854                 .of_match_table = hdmi_of_match,
 855                 .suppress_bind_attrs = true,
 856         },
 857 };
 858
 859 int __init hdmi5_init_platform_driver(void)
 860 {
 861         return platform_driver_register(&omapdss_hdmihw_driver);
 862 }
 863
 864 void hdmi5_uninit_platform_driver(void)
 865 {
 866         platform_driver_unregister(&omapdss_hdmihw_driver);
 867 }