1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * HDMI driver for OMAP5 4 * 5 * Copyright (C) 2014 Texas Instruments Incorporated 6 * 7 * Authors: 8 * Yong Zhi 9 * Mythri pk 10 * Archit Taneja <archit@ti.com> 11 * Tomi Valkeinen <tomi.valkeinen@ti.com> 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/of.h> 28 #include <linux/regulator/consumer.h> 29 #include <linux/component.h> 30 #include <video/omapfb_dss.h> 31 #include <sound/omap-hdmi-audio.h> 32 33 #include "hdmi5_core.h" 34 #include "dss.h" 35 #include "dss_features.h" 36 37 static struct omap_hdmi hdmi; 38 39 static int hdmi_runtime_get(void) 40 { 41 int r; 42 43 DSSDBG("hdmi_runtime_get\n"); 44 45 r = pm_runtime_resume_and_get(&hdmi.pdev->dev); 46 if (WARN_ON(r < 0)) 47 return r; 48 49 return 0; 50 } 51 52 static void hdmi_runtime_put(void) 53 { 54 int r; 55 56 DSSDBG("hdmi_runtime_put\n"); 57 58 r = pm_runtime_put_sync(&hdmi.pdev->dev); 59 WARN_ON(r < 0 && r != -ENOSYS); 60 } 61 62 static irqreturn_t hdmi_irq_handler(int irq, void *data) 63 { 64 struct hdmi_wp_data *wp = data; 65 u32 irqstatus; 66 67 irqstatus = hdmi_wp_get_irqstatus(wp); 68 hdmi_wp_set_irqstatus(wp, irqstatus); 69 70 if ((irqstatus & HDMI_IRQ_LINK_CONNECT) && 71 irqstatus & HDMI_IRQ_LINK_DISCONNECT) { 72 u32 v; 73 /* 74 * If we get both connect and disconnect interrupts at the same 75 * time, turn off the PHY, clear interrupts, and restart, which 76 * raises connect interrupt if a cable is connected, or nothing 77 * if cable is not connected. 78 */ 79 80 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF); 81 82 /* 83 * We always get bogus CONNECT & DISCONNECT interrupts when 84 * setting the PHY to LDOON. To ignore those, we force the RXDET 85 * line to 0 until the PHY power state has been changed. 86 */ 87 v = hdmi_read_reg(hdmi.phy.base, HDMI_TXPHY_PAD_CFG_CTRL); 88 v = FLD_MOD(v, 1, 15, 15); /* FORCE_RXDET_HIGH */ 89 v = FLD_MOD(v, 0, 14, 7); /* RXDET_LINE */ 90 hdmi_write_reg(hdmi.phy.base, HDMI_TXPHY_PAD_CFG_CTRL, v); 91 92 hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT | 93 HDMI_IRQ_LINK_DISCONNECT); 94 95 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON); 96 97 REG_FLD_MOD(hdmi.phy.base, HDMI_TXPHY_PAD_CFG_CTRL, 0, 15, 15); 98 99 } else if (irqstatus & HDMI_IRQ_LINK_CONNECT) { 100 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON); 101 } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) { 102 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON); 103 } 104 105 return IRQ_HANDLED; 106 } 107 108 static int hdmi_init_regulator(void) 109 { 110 struct regulator *reg; 111 112 if (hdmi.vdda_reg != NULL) 113 return 0; 114 115 reg = devm_regulator_get(&hdmi.pdev->dev, "vdda"); 116 if (IS_ERR(reg)) { 117 DSSERR("can't get VDDA regulator\n"); 118 return PTR_ERR(reg); 119 } 120 121 hdmi.vdda_reg = reg; 122 123 return 0; 124 } 125 126 static int hdmi_power_on_core(struct omap_dss_device *dssdev) 127 { 128 int r; 129 130 r = regulator_enable(hdmi.vdda_reg); 131 if (r) 132 return r; 133 134 r = hdmi_runtime_get(); 135 if (r) 136 goto err_runtime_get; 137 138 /* Make selection of HDMI in DSS */ 139 dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK); 140 141 hdmi.core_enabled = true; 142 143 return 0; 144 145 err_runtime_get: 146 regulator_disable(hdmi.vdda_reg); 147 148 return r; 149 } 150 151 static void hdmi_power_off_core(struct omap_dss_device *dssdev) 152 { 153 hdmi.core_enabled = false; 154 155 hdmi_runtime_put(); 156 regulator_disable(hdmi.vdda_reg); 157 } 158 159 static int hdmi_power_on_full(struct omap_dss_device *dssdev) 160 { 161 int r; 162 struct omap_video_timings *p; 163 struct omap_overlay_manager *mgr = hdmi.output.manager; 164 struct dss_pll_clock_info hdmi_cinfo = { 0 }; 165 166 r = hdmi_power_on_core(dssdev); 167 if (r) 168 return r; 169 170 p = &hdmi.cfg.timings; 171 172 DSSDBG("hdmi_power_on x_res= %d y_res = %d\n", p->x_res, p->y_res); 173 174 hdmi_pll_compute(&hdmi.pll, p->pixelclock, &hdmi_cinfo); 175 176 /* disable and clear irqs */ 177 hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff); 178 hdmi_wp_set_irqstatus(&hdmi.wp, 179 hdmi_wp_get_irqstatus(&hdmi.wp)); 180 181 r = dss_pll_enable(&hdmi.pll.pll); 182 if (r) { 183 DSSERR("Failed to enable PLL\n"); 184 goto err_pll_enable; 185 } 186 187 r = dss_pll_set_config(&hdmi.pll.pll, &hdmi_cinfo); 188 if (r) { 189 DSSERR("Failed to configure PLL\n"); 190 goto err_pll_cfg; 191 } 192 193 r = hdmi_phy_configure(&hdmi.phy, hdmi_cinfo.clkdco, 194 hdmi_cinfo.clkout[0]); 195 if (r) { 196 DSSDBG("Failed to start PHY\n"); 197 goto err_phy_cfg; 198 } 199 200 r = hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_LDOON); 201 if (r) 202 goto err_phy_pwr; 203 204 hdmi5_configure(&hdmi.core, &hdmi.wp, &hdmi.cfg); 205 206 /* bypass TV gamma table */ 207 dispc_enable_gamma_table(0); 208 209 /* tv size */ 210 dss_mgr_set_timings(mgr, p); 211 212 r = hdmi_wp_video_start(&hdmi.wp); 213 if (r) 214 goto err_vid_enable; 215 216 r = dss_mgr_enable(mgr); 217 if (r) 218 goto err_mgr_enable; 219 220 hdmi_wp_set_irqenable(&hdmi.wp, 221 HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT); 222 223 return 0; 224 225 err_mgr_enable: 226 hdmi_wp_video_stop(&hdmi.wp); 227 err_vid_enable: 228 hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF); 229 err_phy_pwr: 230 err_phy_cfg: 231 err_pll_cfg: 232 dss_pll_disable(&hdmi.pll.pll); 233 err_pll_enable: 234 hdmi_power_off_core(dssdev); 235 return -EIO; 236 } 237 238 static void hdmi_power_off_full(struct omap_dss_device *dssdev) 239 { 240 struct omap_overlay_manager *mgr = hdmi.output.manager; 241 242 hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff); 243 244 dss_mgr_disable(mgr); 245 246 hdmi_wp_video_stop(&hdmi.wp); 247 248 hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF); 249 250 dss_pll_disable(&hdmi.pll.pll); 251 252 hdmi_power_off_core(dssdev); 253 } 254 255 static int hdmi_display_check_timing(struct omap_dss_device *dssdev, 256 struct omap_video_timings *timings) 257 { 258 struct omap_dss_device *out = &hdmi.output; 259 260 /* TODO: proper interlace support */ 261 if (timings->interlace) 262 return -EINVAL; 263 264 if (!dispc_mgr_timings_ok(out->dispc_channel, timings)) 265 return -EINVAL; 266 267 return 0; 268 } 269 270 static void hdmi_display_set_timing(struct omap_dss_device *dssdev, 271 struct omap_video_timings *timings) 272 { 273 mutex_lock(&hdmi.lock); 274 275 hdmi.cfg.timings = *timings; 276 277 dispc_set_tv_pclk(timings->pixelclock); 278 279 mutex_unlock(&hdmi.lock); 280 } 281 282 static void hdmi_display_get_timings(struct omap_dss_device *dssdev, 283 struct omap_video_timings *timings) 284 { 285 *timings = hdmi.cfg.timings; 286 } 287 288 static void hdmi_dump_regs(struct seq_file *s) 289 { 290 mutex_lock(&hdmi.lock); 291 292 if (hdmi_runtime_get()) { 293 mutex_unlock(&hdmi.lock); 294 return; 295 } 296 297 hdmi_wp_dump(&hdmi.wp, s); 298 hdmi_pll_dump(&hdmi.pll, s); 299 hdmi_phy_dump(&hdmi.phy, s); 300 hdmi5_core_dump(&hdmi.core, s); 301 302 hdmi_runtime_put(); 303 mutex_unlock(&hdmi.lock); 304 } 305 306 static int read_edid(u8 *buf, int len) 307 { 308 int r; 309 int idlemode; 310 311 mutex_lock(&hdmi.lock); 312 313 r = hdmi_runtime_get(); 314 BUG_ON(r); 315 316 idlemode = REG_GET(hdmi.wp.base, HDMI_WP_SYSCONFIG, 3, 2); 317 /* No-idle mode */ 318 REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2); 319 320 r = hdmi5_read_edid(&hdmi.core, buf, len); 321 322 REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, idlemode, 3, 2); 323 324 hdmi_runtime_put(); 325 mutex_unlock(&hdmi.lock); 326 327 return r; 328 } 329 330 static void hdmi_start_audio_stream(struct omap_hdmi *hd) 331 { 332 REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2); 333 hdmi_wp_audio_enable(&hd->wp, true); 334 hdmi_wp_audio_core_req_enable(&hd->wp, true); 335 } 336 337 static void hdmi_stop_audio_stream(struct omap_hdmi *hd) 338 { 339 hdmi_wp_audio_core_req_enable(&hd->wp, false); 340 hdmi_wp_audio_enable(&hd->wp, false); 341 REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, hd->wp_idlemode, 3, 2); 342 } 343 344 static int hdmi_display_enable(struct omap_dss_device *dssdev) 345 { 346 struct omap_dss_device *out = &hdmi.output; 347 unsigned long flags; 348 int r = 0; 349 350 DSSDBG("ENTER hdmi_display_enable\n"); 351 352 mutex_lock(&hdmi.lock); 353 354 if (out->manager == NULL) { 355 DSSERR("failed to enable display: no output/manager\n"); 356 r = -ENODEV; 357 goto err0; 358 } 359 360 r = hdmi_power_on_full(dssdev); 361 if (r) { 362 DSSERR("failed to power on device\n"); 363 goto err0; 364 } 365 366 if (hdmi.audio_configured) { 367 r = hdmi5_audio_config(&hdmi.core, &hdmi.wp, &hdmi.audio_config, 368 hdmi.cfg.timings.pixelclock); 369 if (r) { 370 DSSERR("Error restoring audio configuration: %d", r); 371 hdmi.audio_abort_cb(&hdmi.pdev->dev); 372 hdmi.audio_configured = false; 373 } 374 } 375 376 spin_lock_irqsave(&hdmi.audio_playing_lock, flags); 377 if (hdmi.audio_configured && hdmi.audio_playing) 378 hdmi_start_audio_stream(&hdmi); 379 hdmi.display_enabled = true; 380 spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags); 381 382 mutex_unlock(&hdmi.lock); 383 return 0; 384 385 err0: 386 mutex_unlock(&hdmi.lock); 387 return r; 388 } 389 390 static void hdmi_display_disable(struct omap_dss_device *dssdev) 391 { 392 unsigned long flags; 393 394 DSSDBG("Enter hdmi_display_disable\n"); 395 396 mutex_lock(&hdmi.lock); 397 398 spin_lock_irqsave(&hdmi.audio_playing_lock, flags); 399 hdmi_stop_audio_stream(&hdmi); 400 hdmi.display_enabled = false; 401 spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags); 402 403 hdmi_power_off_full(dssdev); 404 405 mutex_unlock(&hdmi.lock); 406 } 407 408 static int hdmi_core_enable(struct omap_dss_device *dssdev) 409 { 410 int r = 0; 411 412 DSSDBG("ENTER omapdss_hdmi_core_enable\n"); 413 414 mutex_lock(&hdmi.lock); 415 416 r = hdmi_power_on_core(dssdev); 417 if (r) { 418 DSSERR("failed to power on device\n"); 419 goto err0; 420 } 421 422 mutex_unlock(&hdmi.lock); 423 return 0; 424 425 err0: 426 mutex_unlock(&hdmi.lock); 427 return r; 428 } 429 430 static void hdmi_core_disable(struct omap_dss_device *dssdev) 431 { 432 DSSDBG("Enter omapdss_hdmi_core_disable\n"); 433 434 mutex_lock(&hdmi.lock); 435 436 hdmi_power_off_core(dssdev); 437 438 mutex_unlock(&hdmi.lock); 439 } 440 441 static int hdmi_connect(struct omap_dss_device *dssdev, 442 struct omap_dss_device *dst) 443 { 444 struct omap_overlay_manager *mgr; 445 int r; 446 447 r = hdmi_init_regulator(); 448 if (r) 449 return r; 450 451 mgr = omap_dss_get_overlay_manager(dssdev->dispc_channel); 452 if (!mgr) 453 return -ENODEV; 454 455 r = dss_mgr_connect(mgr, dssdev); 456 if (r) 457 return r; 458 459 r = omapdss_output_set_device(dssdev, dst); 460 if (r) { 461 DSSERR("failed to connect output to new device: %s\n", 462 dst->name); 463 dss_mgr_disconnect(mgr, dssdev); 464 return r; 465 } 466 467 return 0; 468 } 469 470 static void hdmi_disconnect(struct omap_dss_device *dssdev, 471 struct omap_dss_device *dst) 472 { 473 WARN_ON(dst != dssdev->dst); 474 475 if (dst != dssdev->dst) 476 return; 477 478 omapdss_output_unset_device(dssdev); 479 480 if (dssdev->manager) 481 dss_mgr_disconnect(dssdev->manager, dssdev); 482 } 483 484 static int hdmi_read_edid(struct omap_dss_device *dssdev, 485 u8 *edid, int len) 486 { 487 bool need_enable; 488 int r; 489 490 need_enable = hdmi.core_enabled == false; 491 492 if (need_enable) { 493 r = hdmi_core_enable(dssdev); 494 if (r) 495 return r; 496 } 497 498 r = read_edid(edid, len); 499 500 if (need_enable) 501 hdmi_core_disable(dssdev); 502 503 return r; 504 } 505 506 static int hdmi_set_infoframe(struct omap_dss_device *dssdev, 507 const struct hdmi_avi_infoframe *avi) 508 { 509 hdmi.cfg.infoframe = *avi; 510 return 0; 511 } 512 513 static int hdmi_set_hdmi_mode(struct omap_dss_device *dssdev, 514 bool hdmi_mode) 515 { 516 hdmi.cfg.hdmi_dvi_mode = hdmi_mode ? HDMI_HDMI : HDMI_DVI; 517 return 0; 518 } 519 520 static const struct omapdss_hdmi_ops hdmi_ops = { 521 .connect = hdmi_connect, 522 .disconnect = hdmi_disconnect, 523 524 .enable = hdmi_display_enable, 525 .disable = hdmi_display_disable, 526 527 .check_timings = hdmi_display_check_timing, 528 .set_timings = hdmi_display_set_timing, 529 .get_timings = hdmi_display_get_timings, 530 531 .read_edid = hdmi_read_edid, 532 .set_infoframe = hdmi_set_infoframe, 533 .set_hdmi_mode = hdmi_set_hdmi_mode, 534 }; 535 536 static void hdmi_init_output(struct platform_device *pdev) 537 { 538 struct omap_dss_device *out = &hdmi.output; 539 540 out->dev = &pdev->dev; 541 out->id = OMAP_DSS_OUTPUT_HDMI; 542 out->output_type = OMAP_DISPLAY_TYPE_HDMI; 543 out->name = "hdmi.0"; 544 out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT; 545 out->ops.hdmi = &hdmi_ops; 546 out->owner = THIS_MODULE; 547 548 omapdss_register_output(out); 549 } 550 551 static void hdmi_uninit_output(struct platform_device *pdev) 552 { 553 struct omap_dss_device *out = &hdmi.output; 554 555 omapdss_unregister_output(out); 556 } 557 558 static int hdmi_probe_of(struct platform_device *pdev) 559 { 560 struct device_node *node = pdev->dev.of_node; 561 struct device_node *ep; 562 int r; 563 564 ep = omapdss_of_get_first_endpoint(node); 565 if (!ep) 566 return 0; 567 568 r = hdmi_parse_lanes_of(pdev, ep, &hdmi.phy); 569 if (r) 570 goto err; 571 572 of_node_put(ep); 573 return 0; 574 575 err: 576 of_node_put(ep); 577 return r; 578 } 579 580 /* Audio callbacks */ 581 static int hdmi_audio_startup(struct device *dev, 582 void (*abort_cb)(struct device *dev)) 583 { 584 struct omap_hdmi *hd = dev_get_drvdata(dev); 585 int ret = 0; 586 587 mutex_lock(&hd->lock); 588 589 if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) { 590 ret = -EPERM; 591 goto out; 592 } 593 594 hd->audio_abort_cb = abort_cb; 595 596 out: 597 mutex_unlock(&hd->lock); 598 599 return ret; 600 } 601 602 static int hdmi_audio_shutdown(struct device *dev) 603 { 604 struct omap_hdmi *hd = dev_get_drvdata(dev); 605 606 mutex_lock(&hd->lock); 607 hd->audio_abort_cb = NULL; 608 hd->audio_configured = false; 609 hd->audio_playing = false; 610 mutex_unlock(&hd->lock); 611 612 return 0; 613 } 614 615 static int hdmi_audio_start(struct device *dev) 616 { 617 struct omap_hdmi *hd = dev_get_drvdata(dev); 618 unsigned long flags; 619 620 WARN_ON(!hdmi_mode_has_audio(&hd->cfg)); 621 622 spin_lock_irqsave(&hd->audio_playing_lock, flags); 623 624 if (hd->display_enabled) 625 hdmi_start_audio_stream(hd); 626 hd->audio_playing = true; 627 628 spin_unlock_irqrestore(&hd->audio_playing_lock, flags); 629 return 0; 630 } 631 632 static void hdmi_audio_stop(struct device *dev) 633 { 634 struct omap_hdmi *hd = dev_get_drvdata(dev); 635 unsigned long flags; 636 637 WARN_ON(!hdmi_mode_has_audio(&hd->cfg)); 638 639 spin_lock_irqsave(&hd->audio_playing_lock, flags); 640 641 if (hd->display_enabled) 642 hdmi_stop_audio_stream(hd); 643 hd->audio_playing = false; 644 645 spin_unlock_irqrestore(&hd->audio_playing_lock, flags); 646 } 647 648 static int hdmi_audio_config(struct device *dev, 649 struct omap_dss_audio *dss_audio) 650 { 651 struct omap_hdmi *hd = dev_get_drvdata(dev); 652 int ret; 653 654 mutex_lock(&hd->lock); 655 656 if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) { 657 ret = -EPERM; 658 goto out; 659 } 660 661 ret = hdmi5_audio_config(&hd->core, &hd->wp, dss_audio, 662 hd->cfg.timings.pixelclock); 663 664 if (!ret) { 665 hd->audio_configured = true; 666 hd->audio_config = *dss_audio; 667 } 668 out: 669 mutex_unlock(&hd->lock); 670 671 return ret; 672 } 673 674 static const struct omap_hdmi_audio_ops hdmi_audio_ops = { 675 .audio_startup = hdmi_audio_startup, 676 .audio_shutdown = hdmi_audio_shutdown, 677 .audio_start = hdmi_audio_start, 678 .audio_stop = hdmi_audio_stop, 679 .audio_config = hdmi_audio_config, 680 }; 681 682 static int hdmi_audio_register(struct device *dev) 683 { 684 struct omap_hdmi_audio_pdata pdata = { 685 .dev = dev, 686 .version = 5, 687 .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi.wp), 688 .ops = &hdmi_audio_ops, 689 }; 690 691 hdmi.audio_pdev = platform_device_register_data( 692 dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO, 693 &pdata, sizeof(pdata)); 694 695 if (IS_ERR(hdmi.audio_pdev)) 696 return PTR_ERR(hdmi.audio_pdev); 697 698 hdmi_runtime_get(); 699 hdmi.wp_idlemode = 700 REG_GET(hdmi.wp.base, HDMI_WP_SYSCONFIG, 3, 2); 701 hdmi_runtime_put(); 702 703 return 0; 704 } 705 706 /* HDMI HW IP initialisation */ 707 static int hdmi5_bind(struct device *dev, struct device *master, void *data) 708 { 709 struct platform_device *pdev = to_platform_device(dev); 710 int r; 711 int irq; 712 713 hdmi.pdev = pdev; 714 platform_set_drvdata(pdev, &hdmi); 715 716 mutex_init(&hdmi.lock); 717 spin_lock_init(&hdmi.audio_playing_lock); 718 719 if (pdev->dev.of_node) { 720 r = hdmi_probe_of(pdev); 721 if (r) 722 return r; 723 } 724 725 r = hdmi_wp_init(pdev, &hdmi.wp); 726 if (r) 727 return r; 728 729 r = hdmi_pll_init(pdev, &hdmi.pll, &hdmi.wp); 730 if (r) 731 return r; 732 733 r = hdmi_phy_init(pdev, &hdmi.phy); 734 if (r) 735 goto err; 736 737 r = hdmi5_core_init(pdev, &hdmi.core); 738 if (r) 739 goto err; 740 741 irq = platform_get_irq(pdev, 0); 742 if (irq < 0) { 743 DSSERR("platform_get_irq failed\n"); 744 r = -ENODEV; 745 goto err; 746 } 747 748 r = devm_request_threaded_irq(&pdev->dev, irq, 749 NULL, hdmi_irq_handler, 750 IRQF_ONESHOT, "OMAP HDMI", &hdmi.wp); 751 if (r) { 752 DSSERR("HDMI IRQ request failed\n"); 753 goto err; 754 } 755 756 pm_runtime_enable(&pdev->dev); 757 758 hdmi_init_output(pdev); 759 760 r = hdmi_audio_register(&pdev->dev); 761 if (r) { 762 DSSERR("Registering HDMI audio failed %d\n", r); 763 hdmi_uninit_output(pdev); 764 pm_runtime_disable(&pdev->dev); 765 return r; 766 } 767 768 dss_debugfs_create_file("hdmi", hdmi_dump_regs); 769 770 return 0; 771 err: 772 hdmi_pll_uninit(&hdmi.pll); 773 return r; 774 } 775 776 static void hdmi5_unbind(struct device *dev, struct device *master, void *data) 777 { 778 struct platform_device *pdev = to_platform_device(dev); 779 780 if (hdmi.audio_pdev) 781 platform_device_unregister(hdmi.audio_pdev); 782 783 hdmi_uninit_output(pdev); 784 785 hdmi_pll_uninit(&hdmi.pll); 786 787 pm_runtime_disable(&pdev->dev); 788 } 789 790 static const struct component_ops hdmi5_component_ops = { 791 .bind = hdmi5_bind, 792 .unbind = hdmi5_unbind, 793 }; 794 795 static int hdmi5_probe(struct platform_device *pdev) 796 { 797 return component_add(&pdev->dev, &hdmi5_component_ops); 798 } 799 800 static int hdmi5_remove(struct platform_device *pdev) 801 { 802 component_del(&pdev->dev, &hdmi5_component_ops); 803 return 0; 804 } 805 806 static int hdmi_runtime_suspend(struct device *dev) 807 { 808 dispc_runtime_put(); 809 810 return 0; 811 } 812 813 static int hdmi_runtime_resume(struct device *dev) 814 { 815 int r; 816 817 r = dispc_runtime_get(); 818 if (r < 0) 819 return r; 820 821 return 0; 822 } 823 824 static const struct dev_pm_ops hdmi_pm_ops = { 825 .runtime_suspend = hdmi_runtime_suspend, 826 .runtime_resume = hdmi_runtime_resume, 827 }; 828 829 static const struct of_device_id hdmi_of_match[] = { 830 { .compatible = "ti,omap5-hdmi", }, 831 { .compatible = "ti,dra7-hdmi", }, 832 {}, 833 }; 834 835 static struct platform_driver omapdss_hdmihw_driver = { 836 .probe = hdmi5_probe, 837 .remove = hdmi5_remove, 838 .driver = { 839 .name = "omapdss_hdmi5", 840 .pm = &hdmi_pm_ops, 841 .of_match_table = hdmi_of_match, 842 .suppress_bind_attrs = true, 843 }, 844 }; 845 846 int __init hdmi5_init_platform_driver(void) 847 { 848 return platform_driver_register(&omapdss_hdmihw_driver); 849 } 850 851 void hdmi5_uninit_platform_driver(void) 852 { 853 platform_driver_unregister(&omapdss_hdmihw_driver); 854 } 855