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 48static struct omap_hdmi hdmi; 49 50static 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 64static 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 74static 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 120static 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 148static 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 167err_runtime_get: 168 regulator_disable(hdmi.vdda_reg); 169 170 return r; 171} 172 173static 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 181static int hdmi_power_on_full(struct omap_dss_device *dssdev) 182{ 183 int r; 184 struct omap_video_timings *p; 185 struct omap_overlay_manager *mgr = hdmi.output.manager; 186 struct dss_pll_clock_info hdmi_cinfo = { 0 }; 187 188 r = hdmi_power_on_core(dssdev); 189 if (r) 190 return r; 191 192 p = &hdmi.cfg.timings; 193 194 DSSDBG("hdmi_power_on x_res= %d y_res = %d\n", p->x_res, p->y_res); 195 196 hdmi_pll_compute(&hdmi.pll, p->pixelclock, &hdmi_cinfo); 197 198 /* disable and clear irqs */ 199 hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff); 200 hdmi_wp_set_irqstatus(&hdmi.wp, 201 hdmi_wp_get_irqstatus(&hdmi.wp)); 202 203 r = dss_pll_enable(&hdmi.pll.pll); 204 if (r) { 205 DSSERR("Failed to enable PLL\n"); 206 goto err_pll_enable; 207 } 208 209 r = dss_pll_set_config(&hdmi.pll.pll, &hdmi_cinfo); 210 if (r) { 211 DSSERR("Failed to configure PLL\n"); 212 goto err_pll_cfg; 213 } 214 215 r = hdmi_phy_configure(&hdmi.phy, hdmi_cinfo.clkdco, 216 hdmi_cinfo.clkout[0]); 217 if (r) { 218 DSSDBG("Failed to start PHY\n"); 219 goto err_phy_cfg; 220 } 221 222 r = hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_LDOON); 223 if (r) 224 goto err_phy_pwr; 225 226 hdmi5_configure(&hdmi.core, &hdmi.wp, &hdmi.cfg); 227 228 /* bypass TV gamma table */ 229 dispc_enable_gamma_table(0); 230 231 /* tv size */ 232 dss_mgr_set_timings(mgr, p); 233 234 r = hdmi_wp_video_start(&hdmi.wp); 235 if (r) 236 goto err_vid_enable; 237 238 r = dss_mgr_enable(mgr); 239 if (r) 240 goto err_mgr_enable; 241 242 hdmi_wp_set_irqenable(&hdmi.wp, 243 HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT); 244 245 return 0; 246 247err_mgr_enable: 248 hdmi_wp_video_stop(&hdmi.wp); 249err_vid_enable: 250 hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF); 251err_phy_pwr: 252err_phy_cfg: 253err_pll_cfg: 254 dss_pll_disable(&hdmi.pll.pll); 255err_pll_enable: 256 hdmi_power_off_core(dssdev); 257 return -EIO; 258} 259 260static void hdmi_power_off_full(struct omap_dss_device *dssdev) 261{ 262 struct omap_overlay_manager *mgr = hdmi.output.manager; 263 264 hdmi_wp_clear_irqenable(&hdmi.wp, 0xffffffff); 265 266 dss_mgr_disable(mgr); 267 268 hdmi_wp_video_stop(&hdmi.wp); 269 270 hdmi_wp_set_phy_pwr(&hdmi.wp, HDMI_PHYPWRCMD_OFF); 271 272 dss_pll_disable(&hdmi.pll.pll); 273 274 hdmi_power_off_core(dssdev); 275} 276 277static int hdmi_display_check_timing(struct omap_dss_device *dssdev, 278 struct omap_video_timings *timings) 279{ 280 struct omap_dss_device *out = &hdmi.output; 281 282 /* TODO: proper interlace support */ 283 if (timings->interlace) 284 return -EINVAL; 285 286 if (!dispc_mgr_timings_ok(out->dispc_channel, timings)) 287 return -EINVAL; 288 289 return 0; 290} 291 292static void hdmi_display_set_timing(struct omap_dss_device *dssdev, 293 struct omap_video_timings *timings) 294{ 295 mutex_lock(&hdmi.lock); 296 297 hdmi.cfg.timings = *timings; 298 299 dispc_set_tv_pclk(timings->pixelclock); 300 301 mutex_unlock(&hdmi.lock); 302} 303 304static void hdmi_display_get_timings(struct omap_dss_device *dssdev, 305 struct omap_video_timings *timings) 306{ 307 *timings = hdmi.cfg.timings; 308} 309 310static void hdmi_dump_regs(struct seq_file *s) 311{ 312 mutex_lock(&hdmi.lock); 313 314 if (hdmi_runtime_get()) { 315 mutex_unlock(&hdmi.lock); 316 return; 317 } 318 319 hdmi_wp_dump(&hdmi.wp, s); 320 hdmi_pll_dump(&hdmi.pll, s); 321 hdmi_phy_dump(&hdmi.phy, s); 322 hdmi5_core_dump(&hdmi.core, s); 323 324 hdmi_runtime_put(); 325 mutex_unlock(&hdmi.lock); 326} 327 328static int read_edid(u8 *buf, int len) 329{ 330 int r; 331 int idlemode; 332 333 mutex_lock(&hdmi.lock); 334 335 r = hdmi_runtime_get(); 336 BUG_ON(r); 337 338 idlemode = REG_GET(hdmi.wp.base, HDMI_WP_SYSCONFIG, 3, 2); 339 /* No-idle mode */ 340 REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2); 341 342 r = hdmi5_read_edid(&hdmi.core, buf, len); 343 344 REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, idlemode, 3, 2); 345 346 hdmi_runtime_put(); 347 mutex_unlock(&hdmi.lock); 348 349 return r; 350} 351 352static void hdmi_start_audio_stream(struct omap_hdmi *hd) 353{ 354 REG_FLD_MOD(hdmi.wp.base, HDMI_WP_SYSCONFIG, 1, 3, 2); 355 hdmi_wp_audio_enable(&hd->wp, true); 356 hdmi_wp_audio_core_req_enable(&hd->wp, true); 357} 358 359static void hdmi_stop_audio_stream(struct omap_hdmi *hd) 360{ 361 hdmi_wp_audio_core_req_enable(&hd->wp, false); 362 hdmi_wp_audio_enable(&hd->wp, false); 363 REG_FLD_MOD(hd->wp.base, HDMI_WP_SYSCONFIG, hd->wp_idlemode, 3, 2); 364} 365 366static int hdmi_display_enable(struct omap_dss_device *dssdev) 367{ 368 struct omap_dss_device *out = &hdmi.output; 369 unsigned long flags; 370 int r = 0; 371 372 DSSDBG("ENTER hdmi_display_enable\n"); 373 374 mutex_lock(&hdmi.lock); 375 376 if (out == NULL || out->manager == NULL) { 377 DSSERR("failed to enable display: no output/manager\n"); 378 r = -ENODEV; 379 goto err0; 380 } 381 382 r = hdmi_power_on_full(dssdev); 383 if (r) { 384 DSSERR("failed to power on device\n"); 385 goto err0; 386 } 387 388 if (hdmi.audio_configured) { 389 r = hdmi5_audio_config(&hdmi.core, &hdmi.wp, &hdmi.audio_config, 390 hdmi.cfg.timings.pixelclock); 391 if (r) { 392 DSSERR("Error restoring audio configuration: %d", r); 393 hdmi.audio_abort_cb(&hdmi.pdev->dev); 394 hdmi.audio_configured = false; 395 } 396 } 397 398 spin_lock_irqsave(&hdmi.audio_playing_lock, flags); 399 if (hdmi.audio_configured && hdmi.audio_playing) 400 hdmi_start_audio_stream(&hdmi); 401 hdmi.display_enabled = true; 402 spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags); 403 404 mutex_unlock(&hdmi.lock); 405 return 0; 406 407err0: 408 mutex_unlock(&hdmi.lock); 409 return r; 410} 411 412static void hdmi_display_disable(struct omap_dss_device *dssdev) 413{ 414 unsigned long flags; 415 416 DSSDBG("Enter hdmi_display_disable\n"); 417 418 mutex_lock(&hdmi.lock); 419 420 spin_lock_irqsave(&hdmi.audio_playing_lock, flags); 421 hdmi_stop_audio_stream(&hdmi); 422 hdmi.display_enabled = false; 423 spin_unlock_irqrestore(&hdmi.audio_playing_lock, flags); 424 425 hdmi_power_off_full(dssdev); 426 427 mutex_unlock(&hdmi.lock); 428} 429 430static int hdmi_core_enable(struct omap_dss_device *dssdev) 431{ 432 int r = 0; 433 434 DSSDBG("ENTER omapdss_hdmi_core_enable\n"); 435 436 mutex_lock(&hdmi.lock); 437 438 r = hdmi_power_on_core(dssdev); 439 if (r) { 440 DSSERR("failed to power on device\n"); 441 goto err0; 442 } 443 444 mutex_unlock(&hdmi.lock); 445 return 0; 446 447err0: 448 mutex_unlock(&hdmi.lock); 449 return r; 450} 451 452static void hdmi_core_disable(struct omap_dss_device *dssdev) 453{ 454 DSSDBG("Enter omapdss_hdmi_core_disable\n"); 455 456 mutex_lock(&hdmi.lock); 457 458 hdmi_power_off_core(dssdev); 459 460 mutex_unlock(&hdmi.lock); 461} 462 463static int hdmi_connect(struct omap_dss_device *dssdev, 464 struct omap_dss_device *dst) 465{ 466 struct omap_overlay_manager *mgr; 467 int r; 468 469 r = hdmi_init_regulator(); 470 if (r) 471 return r; 472 473 mgr = omap_dss_get_overlay_manager(dssdev->dispc_channel); 474 if (!mgr) 475 return -ENODEV; 476 477 r = dss_mgr_connect(mgr, dssdev); 478 if (r) 479 return r; 480 481 r = omapdss_output_set_device(dssdev, dst); 482 if (r) { 483 DSSERR("failed to connect output to new device: %s\n", 484 dst->name); 485 dss_mgr_disconnect(mgr, dssdev); 486 return r; 487 } 488 489 return 0; 490} 491 492static void hdmi_disconnect(struct omap_dss_device *dssdev, 493 struct omap_dss_device *dst) 494{ 495 WARN_ON(dst != dssdev->dst); 496 497 if (dst != dssdev->dst) 498 return; 499 500 omapdss_output_unset_device(dssdev); 501 502 if (dssdev->manager) 503 dss_mgr_disconnect(dssdev->manager, dssdev); 504} 505 506static int hdmi_read_edid(struct omap_dss_device *dssdev, 507 u8 *edid, int len) 508{ 509 bool need_enable; 510 int r; 511 512 need_enable = hdmi.core_enabled == false; 513 514 if (need_enable) { 515 r = hdmi_core_enable(dssdev); 516 if (r) 517 return r; 518 } 519 520 r = read_edid(edid, len); 521 522 if (need_enable) 523 hdmi_core_disable(dssdev); 524 525 return r; 526} 527 528static int hdmi_set_infoframe(struct omap_dss_device *dssdev, 529 const struct hdmi_avi_infoframe *avi) 530{ 531 hdmi.cfg.infoframe = *avi; 532 return 0; 533} 534 535static int hdmi_set_hdmi_mode(struct omap_dss_device *dssdev, 536 bool hdmi_mode) 537{ 538 hdmi.cfg.hdmi_dvi_mode = hdmi_mode ? HDMI_HDMI : HDMI_DVI; 539 return 0; 540} 541 542static const struct omapdss_hdmi_ops hdmi_ops = { 543 .connect = hdmi_connect, 544 .disconnect = hdmi_disconnect, 545 546 .enable = hdmi_display_enable, 547 .disable = hdmi_display_disable, 548 549 .check_timings = hdmi_display_check_timing, 550 .set_timings = hdmi_display_set_timing, 551 .get_timings = hdmi_display_get_timings, 552 553 .read_edid = hdmi_read_edid, 554 .set_infoframe = hdmi_set_infoframe, 555 .set_hdmi_mode = hdmi_set_hdmi_mode, 556}; 557 558static void hdmi_init_output(struct platform_device *pdev) 559{ 560 struct omap_dss_device *out = &hdmi.output; 561 562 out->dev = &pdev->dev; 563 out->id = OMAP_DSS_OUTPUT_HDMI; 564 out->output_type = OMAP_DISPLAY_TYPE_HDMI; 565 out->name = "hdmi.0"; 566 out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT; 567 out->ops.hdmi = &hdmi_ops; 568 out->owner = THIS_MODULE; 569 570 omapdss_register_output(out); 571} 572 573static void hdmi_uninit_output(struct platform_device *pdev) 574{ 575 struct omap_dss_device *out = &hdmi.output; 576 577 omapdss_unregister_output(out); 578} 579 580static int hdmi_probe_of(struct platform_device *pdev) 581{ 582 struct device_node *node = pdev->dev.of_node; 583 struct device_node *ep; 584 int r; 585 586 ep = omapdss_of_get_first_endpoint(node); 587 if (!ep) 588 return 0; 589 590 r = hdmi_parse_lanes_of(pdev, ep, &hdmi.phy); 591 if (r) 592 goto err; 593 594 of_node_put(ep); 595 return 0; 596 597err: 598 of_node_put(ep); 599 return r; 600} 601 602/* Audio callbacks */ 603static int hdmi_audio_startup(struct device *dev, 604 void (*abort_cb)(struct device *dev)) 605{ 606 struct omap_hdmi *hd = dev_get_drvdata(dev); 607 int ret = 0; 608 609 mutex_lock(&hd->lock); 610 611 if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) { 612 ret = -EPERM; 613 goto out; 614 } 615 616 hd->audio_abort_cb = abort_cb; 617 618out: 619 mutex_unlock(&hd->lock); 620 621 return ret; 622} 623 624static int hdmi_audio_shutdown(struct device *dev) 625{ 626 struct omap_hdmi *hd = dev_get_drvdata(dev); 627 628 mutex_lock(&hd->lock); 629 hd->audio_abort_cb = NULL; 630 hd->audio_configured = false; 631 hd->audio_playing = false; 632 mutex_unlock(&hd->lock); 633 634 return 0; 635} 636 637static int hdmi_audio_start(struct device *dev) 638{ 639 struct omap_hdmi *hd = dev_get_drvdata(dev); 640 unsigned long flags; 641 642 WARN_ON(!hdmi_mode_has_audio(&hd->cfg)); 643 644 spin_lock_irqsave(&hd->audio_playing_lock, flags); 645 646 if (hd->display_enabled) 647 hdmi_start_audio_stream(hd); 648 hd->audio_playing = true; 649 650 spin_unlock_irqrestore(&hd->audio_playing_lock, flags); 651 return 0; 652} 653 654static void hdmi_audio_stop(struct device *dev) 655{ 656 struct omap_hdmi *hd = dev_get_drvdata(dev); 657 unsigned long flags; 658 659 WARN_ON(!hdmi_mode_has_audio(&hd->cfg)); 660 661 spin_lock_irqsave(&hd->audio_playing_lock, flags); 662 663 if (hd->display_enabled) 664 hdmi_stop_audio_stream(hd); 665 hd->audio_playing = false; 666 667 spin_unlock_irqrestore(&hd->audio_playing_lock, flags); 668} 669 670static int hdmi_audio_config(struct device *dev, 671 struct omap_dss_audio *dss_audio) 672{ 673 struct omap_hdmi *hd = dev_get_drvdata(dev); 674 int ret; 675 676 mutex_lock(&hd->lock); 677 678 if (!hdmi_mode_has_audio(&hd->cfg) || !hd->display_enabled) { 679 ret = -EPERM; 680 goto out; 681 } 682 683 ret = hdmi5_audio_config(&hd->core, &hd->wp, dss_audio, 684 hd->cfg.timings.pixelclock); 685 686 if (!ret) { 687 hd->audio_configured = true; 688 hd->audio_config = *dss_audio; 689 } 690out: 691 mutex_unlock(&hd->lock); 692 693 return ret; 694} 695 696static const struct omap_hdmi_audio_ops hdmi_audio_ops = { 697 .audio_startup = hdmi_audio_startup, 698 .audio_shutdown = hdmi_audio_shutdown, 699 .audio_start = hdmi_audio_start, 700 .audio_stop = hdmi_audio_stop, 701 .audio_config = hdmi_audio_config, 702}; 703 704static int hdmi_audio_register(struct device *dev) 705{ 706 struct omap_hdmi_audio_pdata pdata = { 707 .dev = dev, 708 .dss_version = omapdss_get_version(), 709 .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi.wp), 710 .ops = &hdmi_audio_ops, 711 }; 712 713 hdmi.audio_pdev = platform_device_register_data( 714 dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO, 715 &pdata, sizeof(pdata)); 716 717 if (IS_ERR(hdmi.audio_pdev)) 718 return PTR_ERR(hdmi.audio_pdev); 719 720 hdmi_runtime_get(); 721 hdmi.wp_idlemode = 722 REG_GET(hdmi.wp.base, HDMI_WP_SYSCONFIG, 3, 2); 723 hdmi_runtime_put(); 724 725 return 0; 726} 727 728/* HDMI HW IP initialisation */ 729static int hdmi5_bind(struct device *dev, struct device *master, void *data) 730{ 731 struct platform_device *pdev = to_platform_device(dev); 732 int r; 733 int irq; 734 735 hdmi.pdev = pdev; 736 dev_set_drvdata(&pdev->dev, &hdmi); 737 738 mutex_init(&hdmi.lock); 739 spin_lock_init(&hdmi.audio_playing_lock); 740 741 if (pdev->dev.of_node) { 742 r = hdmi_probe_of(pdev); 743 if (r) 744 return r; 745 } 746 747 r = hdmi_wp_init(pdev, &hdmi.wp); 748 if (r) 749 return r; 750 751 r = hdmi_pll_init(pdev, &hdmi.pll, &hdmi.wp); 752 if (r) 753 return r; 754 755 r = hdmi_phy_init(pdev, &hdmi.phy); 756 if (r) 757 goto err; 758 759 r = hdmi5_core_init(pdev, &hdmi.core); 760 if (r) 761 goto err; 762 763 irq = platform_get_irq(pdev, 0); 764 if (irq < 0) { 765 DSSERR("platform_get_irq failed\n"); 766 r = -ENODEV; 767 goto err; 768 } 769 770 r = devm_request_threaded_irq(&pdev->dev, irq, 771 NULL, hdmi_irq_handler, 772 IRQF_ONESHOT, "OMAP HDMI", &hdmi.wp); 773 if (r) { 774 DSSERR("HDMI IRQ request failed\n"); 775 goto err; 776 } 777 778 pm_runtime_enable(&pdev->dev); 779 780 hdmi_init_output(pdev); 781 782 r = hdmi_audio_register(&pdev->dev); 783 if (r) { 784 DSSERR("Registering HDMI audio failed %d\n", r); 785 hdmi_uninit_output(pdev); 786 pm_runtime_disable(&pdev->dev); 787 return r; 788 } 789 790 dss_debugfs_create_file("hdmi", hdmi_dump_regs); 791 792 return 0; 793err: 794 hdmi_pll_uninit(&hdmi.pll); 795 return r; 796} 797 798static void hdmi5_unbind(struct device *dev, struct device *master, void *data) 799{ 800 struct platform_device *pdev = to_platform_device(dev); 801 802 if (hdmi.audio_pdev) 803 platform_device_unregister(hdmi.audio_pdev); 804 805 hdmi_uninit_output(pdev); 806 807 hdmi_pll_uninit(&hdmi.pll); 808 809 pm_runtime_disable(&pdev->dev); 810} 811 812static const struct component_ops hdmi5_component_ops = { 813 .bind = hdmi5_bind, 814 .unbind = hdmi5_unbind, 815}; 816 817static int hdmi5_probe(struct platform_device *pdev) 818{ 819 return component_add(&pdev->dev, &hdmi5_component_ops); 820} 821 822static int hdmi5_remove(struct platform_device *pdev) 823{ 824 component_del(&pdev->dev, &hdmi5_component_ops); 825 return 0; 826} 827 828static int hdmi_runtime_suspend(struct device *dev) 829{ 830 dispc_runtime_put(); 831 832 return 0; 833} 834 835static int hdmi_runtime_resume(struct device *dev) 836{ 837 int r; 838 839 r = dispc_runtime_get(); 840 if (r < 0) 841 return r; 842 843 return 0; 844} 845 846static const struct dev_pm_ops hdmi_pm_ops = { 847 .runtime_suspend = hdmi_runtime_suspend, 848 .runtime_resume = hdmi_runtime_resume, 849}; 850 851static const struct of_device_id hdmi_of_match[] = { 852 { .compatible = "ti,omap5-hdmi", }, 853 { .compatible = "ti,dra7-hdmi", }, 854 {}, 855}; 856 857static struct platform_driver omapdss_hdmihw_driver = { 858 .probe = hdmi5_probe, 859 .remove = hdmi5_remove, 860 .driver = { 861 .name = "omapdss_hdmi5", 862 .pm = &hdmi_pm_ops, 863 .of_match_table = hdmi_of_match, 864 .suppress_bind_attrs = true, 865 }, 866}; 867 868int __init hdmi5_init_platform_driver(void) 869{ 870 return platform_driver_register(&omapdss_hdmihw_driver); 871} 872 873void hdmi5_uninit_platform_driver(void) 874{ 875 platform_driver_unregister(&omapdss_hdmihw_driver); 876} 877