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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * HDMI interface DSS driver for TI's OMAP4 family of SoCs.4 *5 * Copyright (C) 2010-2011 Texas Instruments Incorporated - https://www.ti.com/6 * Authors: Yong Zhi7 * Mythri pk <mythripk@ti.com>8 */9 10#define DSS_SUBSYS_NAME "HDMI"11 12#include <linux/kernel.h>13#include <linux/module.h>14#include <linux/err.h>15#include <linux/io.h>16#include <linux/interrupt.h>17#include <linux/mutex.h>18#include <linux/delay.h>19#include <linux/string.h>20#include <linux/platform_device.h>21#include <linux/pm_runtime.h>22#include <linux/clk.h>23#include <linux/regulator/consumer.h>24#include <linux/component.h>25#include <linux/of.h>26#include <linux/of_graph.h>27#include <sound/omap-hdmi-audio.h>28#include <media/cec.h>29 30#include <drm/drm_atomic.h>31#include <drm/drm_atomic_state_helper.h>32#include <drm/drm_edid.h>33 34#include "omapdss.h"35#include "hdmi4_core.h"36#include "hdmi4_cec.h"37#include "dss.h"38#include "hdmi.h"39 40static int hdmi_runtime_get(struct omap_hdmi *hdmi)41{42 int r;43 44 DSSDBG("hdmi_runtime_get\n");45 46 r = pm_runtime_get_sync(&hdmi->pdev->dev);47 if (WARN_ON(r < 0)) {48 pm_runtime_put_noidle(&hdmi->pdev->dev);49 return r;50 }51 return 0;52}53 54static void hdmi_runtime_put(struct omap_hdmi *hdmi)55{56 int r;57 58 DSSDBG("hdmi_runtime_put\n");59 60 r = pm_runtime_put_sync(&hdmi->pdev->dev);61 WARN_ON(r < 0 && r != -ENOSYS);62}63 64static irqreturn_t hdmi_irq_handler(int irq, void *data)65{66 struct omap_hdmi *hdmi = data;67 struct hdmi_wp_data *wp = &hdmi->wp;68 u32 irqstatus;69 70 irqstatus = hdmi_wp_get_irqstatus(wp);71 hdmi_wp_set_irqstatus(wp, irqstatus);72 73 if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&74 irqstatus & HDMI_IRQ_LINK_DISCONNECT) {75 /*76 * If we get both connect and disconnect interrupts at the same77 * time, turn off the PHY, clear interrupts, and restart, which78 * raises connect interrupt if a cable is connected, or nothing79 * if cable is not connected.80 */81 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);82 83 hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT |84 HDMI_IRQ_LINK_DISCONNECT);85 86 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);87 } else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {88 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON);89 } else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {90 hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);91 }92 if (irqstatus & HDMI_IRQ_CORE) {93 u32 intr4 = hdmi_read_reg(hdmi->core.base, HDMI_CORE_SYS_INTR4);94 95 hdmi_write_reg(hdmi->core.base, HDMI_CORE_SYS_INTR4, intr4);96 if (intr4 & 8)97 hdmi4_cec_irq(&hdmi->core);98 }99 100 return IRQ_HANDLED;101}102 103static int hdmi_power_on_core(struct omap_hdmi *hdmi)104{105 int r;106 107 if (hdmi->core.core_pwr_cnt++)108 return 0;109 110 r = regulator_enable(hdmi->vdda_reg);111 if (r)112 goto err_reg_enable;113 114 r = hdmi_runtime_get(hdmi);115 if (r)116 goto err_runtime_get;117 118 hdmi4_core_powerdown_disable(&hdmi->core);119 120 /* Make selection of HDMI in DSS */121 dss_select_hdmi_venc_clk_source(hdmi->dss, DSS_HDMI_M_PCLK);122 123 hdmi->core_enabled = true;124 125 return 0;126 127err_runtime_get:128 regulator_disable(hdmi->vdda_reg);129err_reg_enable:130 hdmi->core.core_pwr_cnt--;131 132 return r;133}134 135static void hdmi_power_off_core(struct omap_hdmi *hdmi)136{137 if (--hdmi->core.core_pwr_cnt)138 return;139 140 hdmi->core_enabled = false;141 142 hdmi_runtime_put(hdmi);143 regulator_disable(hdmi->vdda_reg);144}145 146static int hdmi_power_on_full(struct omap_hdmi *hdmi)147{148 int r;149 const struct videomode *vm;150 struct hdmi_wp_data *wp = &hdmi->wp;151 struct dss_pll_clock_info hdmi_cinfo = { 0 };152 unsigned int pc;153 154 r = hdmi_power_on_core(hdmi);155 if (r)156 return r;157 158 /* disable and clear irqs */159 hdmi_wp_clear_irqenable(wp, ~HDMI_IRQ_CORE);160 hdmi_wp_set_irqstatus(wp, ~HDMI_IRQ_CORE);161 162 vm = &hdmi->cfg.vm;163 164 DSSDBG("hdmi_power_on hactive= %d vactive = %d\n", vm->hactive,165 vm->vactive);166 167 pc = vm->pixelclock;168 if (vm->flags & DISPLAY_FLAGS_DOUBLECLK)169 pc *= 2;170 171 /* DSS_HDMI_TCLK is bitclk / 10 */172 pc *= 10;173 174 dss_pll_calc_b(&hdmi->pll.pll, clk_get_rate(hdmi->pll.pll.clkin),175 pc, &hdmi_cinfo);176 177 r = dss_pll_enable(&hdmi->pll.pll);178 if (r) {179 DSSERR("Failed to enable PLL\n");180 goto err_pll_enable;181 }182 183 r = dss_pll_set_config(&hdmi->pll.pll, &hdmi_cinfo);184 if (r) {185 DSSERR("Failed to configure PLL\n");186 goto err_pll_cfg;187 }188 189 r = hdmi_phy_configure(&hdmi->phy, hdmi_cinfo.clkdco,190 hdmi_cinfo.clkout[0]);191 if (r) {192 DSSDBG("Failed to configure PHY\n");193 goto err_phy_cfg;194 }195 196 r = hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);197 if (r)198 goto err_phy_pwr;199 200 hdmi4_configure(&hdmi->core, &hdmi->wp, &hdmi->cfg);201 202 r = dss_mgr_enable(&hdmi->output);203 if (r)204 goto err_mgr_enable;205 206 r = hdmi_wp_video_start(&hdmi->wp);207 if (r)208 goto err_vid_enable;209 210 hdmi_wp_set_irqenable(wp,211 HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);212 213 return 0;214 215err_vid_enable:216 dss_mgr_disable(&hdmi->output);217err_mgr_enable:218 hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);219err_phy_pwr:220err_phy_cfg:221err_pll_cfg:222 dss_pll_disable(&hdmi->pll.pll);223err_pll_enable:224 hdmi_power_off_core(hdmi);225 return -EIO;226}227 228static void hdmi_power_off_full(struct omap_hdmi *hdmi)229{230 hdmi_wp_clear_irqenable(&hdmi->wp, ~HDMI_IRQ_CORE);231 232 hdmi_wp_video_stop(&hdmi->wp);233 234 dss_mgr_disable(&hdmi->output);235 236 hdmi_wp_set_phy_pwr(&hdmi->wp, HDMI_PHYPWRCMD_OFF);237 238 dss_pll_disable(&hdmi->pll.pll);239 240 hdmi_power_off_core(hdmi);241}242 243static int hdmi_dump_regs(struct seq_file *s, void *p)244{245 struct omap_hdmi *hdmi = s->private;246 247 mutex_lock(&hdmi->lock);248 249 if (hdmi_runtime_get(hdmi)) {250 mutex_unlock(&hdmi->lock);251 return 0;252 }253 254 hdmi_wp_dump(&hdmi->wp, s);255 hdmi_pll_dump(&hdmi->pll, s);256 hdmi_phy_dump(&hdmi->phy, s);257 hdmi4_core_dump(&hdmi->core, s);258 259 hdmi_runtime_put(hdmi);260 mutex_unlock(&hdmi->lock);261 return 0;262}263 264static void hdmi_start_audio_stream(struct omap_hdmi *hd)265{266 hdmi_wp_audio_enable(&hd->wp, true);267 hdmi4_audio_start(&hd->core, &hd->wp);268}269 270static void hdmi_stop_audio_stream(struct omap_hdmi *hd)271{272 hdmi4_audio_stop(&hd->core, &hd->wp);273 hdmi_wp_audio_enable(&hd->wp, false);274}275 276int hdmi4_core_enable(struct hdmi_core_data *core)277{278 struct omap_hdmi *hdmi = container_of(core, struct omap_hdmi, core);279 int r = 0;280 281 DSSDBG("ENTER omapdss_hdmi4_core_enable\n");282 283 mutex_lock(&hdmi->lock);284 285 r = hdmi_power_on_core(hdmi);286 if (r) {287 DSSERR("failed to power on device\n");288 goto err0;289 }290 291 mutex_unlock(&hdmi->lock);292 return 0;293 294err0:295 mutex_unlock(&hdmi->lock);296 return r;297}298 299void hdmi4_core_disable(struct hdmi_core_data *core)300{301 struct omap_hdmi *hdmi = container_of(core, struct omap_hdmi, core);302 303 DSSDBG("Enter omapdss_hdmi4_core_disable\n");304 305 mutex_lock(&hdmi->lock);306 307 hdmi_power_off_core(hdmi);308 309 mutex_unlock(&hdmi->lock);310}311 312/* -----------------------------------------------------------------------------313 * DRM Bridge Operations314 */315 316static int hdmi4_bridge_attach(struct drm_bridge *bridge,317 enum drm_bridge_attach_flags flags)318{319 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);320 321 if (!(flags & DRM_BRIDGE_ATTACH_NO_CONNECTOR))322 return -EINVAL;323 324 return drm_bridge_attach(bridge->encoder, hdmi->output.next_bridge,325 bridge, flags);326}327 328static void hdmi4_bridge_mode_set(struct drm_bridge *bridge,329 const struct drm_display_mode *mode,330 const struct drm_display_mode *adjusted_mode)331{332 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);333 334 mutex_lock(&hdmi->lock);335 336 drm_display_mode_to_videomode(adjusted_mode, &hdmi->cfg.vm);337 338 dispc_set_tv_pclk(hdmi->dss->dispc, adjusted_mode->clock * 1000);339 340 mutex_unlock(&hdmi->lock);341}342 343static void hdmi4_bridge_enable(struct drm_bridge *bridge,344 struct drm_bridge_state *bridge_state)345{346 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);347 struct drm_atomic_state *state = bridge_state->base.state;348 struct drm_connector_state *conn_state;349 struct drm_connector *connector;350 struct drm_crtc_state *crtc_state;351 unsigned long flags;352 int ret;353 354 /*355 * None of these should fail, as the bridge can't be enabled without a356 * valid CRTC to connector path with fully populated new states.357 */358 connector = drm_atomic_get_new_connector_for_encoder(state,359 bridge->encoder);360 if (WARN_ON(!connector))361 return;362 conn_state = drm_atomic_get_new_connector_state(state, connector);363 if (WARN_ON(!conn_state))364 return;365 crtc_state = drm_atomic_get_new_crtc_state(state, conn_state->crtc);366 if (WARN_ON(!crtc_state))367 return;368 369 hdmi->cfg.hdmi_dvi_mode = connector->display_info.is_hdmi370 ? HDMI_HDMI : HDMI_DVI;371 372 if (connector->display_info.is_hdmi) {373 const struct drm_display_mode *mode;374 struct hdmi_avi_infoframe avi;375 376 mode = &crtc_state->adjusted_mode;377 ret = drm_hdmi_avi_infoframe_from_display_mode(&avi, connector,378 mode);379 if (ret == 0)380 hdmi->cfg.infoframe = avi;381 }382 383 mutex_lock(&hdmi->lock);384 385 ret = hdmi_power_on_full(hdmi);386 if (ret) {387 DSSERR("failed to power on device\n");388 goto done;389 }390 391 if (hdmi->audio_configured) {392 ret = hdmi4_audio_config(&hdmi->core, &hdmi->wp,393 &hdmi->audio_config,394 hdmi->cfg.vm.pixelclock);395 if (ret) {396 DSSERR("Error restoring audio configuration: %d", ret);397 hdmi->audio_abort_cb(&hdmi->pdev->dev);398 hdmi->audio_configured = false;399 }400 }401 402 spin_lock_irqsave(&hdmi->audio_playing_lock, flags);403 if (hdmi->audio_configured && hdmi->audio_playing)404 hdmi_start_audio_stream(hdmi);405 hdmi->display_enabled = true;406 spin_unlock_irqrestore(&hdmi->audio_playing_lock, flags);407 408done:409 mutex_unlock(&hdmi->lock);410}411 412static void hdmi4_bridge_disable(struct drm_bridge *bridge,413 struct drm_bridge_state *bridge_state)414{415 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);416 unsigned long flags;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(hdmi);426 427 mutex_unlock(&hdmi->lock);428}429 430static void hdmi4_bridge_hpd_notify(struct drm_bridge *bridge,431 enum drm_connector_status status)432{433 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);434 435 if (status == connector_status_disconnected)436 hdmi4_cec_set_phys_addr(&hdmi->core, CEC_PHYS_ADDR_INVALID);437}438 439static const struct drm_edid *hdmi4_bridge_edid_read(struct drm_bridge *bridge,440 struct drm_connector *connector)441{442 struct omap_hdmi *hdmi = drm_bridge_to_hdmi(bridge);443 const struct drm_edid *drm_edid = NULL;444 unsigned int cec_addr;445 bool need_enable;446 int r;447 448 need_enable = hdmi->core_enabled == false;449 450 if (need_enable) {451 r = hdmi4_core_enable(&hdmi->core);452 if (r)453 return NULL;454 }455 456 mutex_lock(&hdmi->lock);457 r = hdmi_runtime_get(hdmi);458 BUG_ON(r);459 460 r = hdmi4_core_ddc_init(&hdmi->core);461 if (r)462 goto done;463 464 drm_edid = drm_edid_read_custom(connector, hdmi4_core_ddc_read, &hdmi->core);465 466done:467 hdmi_runtime_put(hdmi);468 mutex_unlock(&hdmi->lock);469 470 if (drm_edid) {471 /*472 * FIXME: The CEC physical address should be set using473 * hdmi4_cec_set_phys_addr(&hdmi->core,474 * connector->display_info.source_physical_address) from a path475 * that has read the EDID and called476 * drm_edid_connector_update().477 */478 const struct edid *edid = drm_edid_raw(drm_edid);479 unsigned int len = (edid->extensions + 1) * EDID_LENGTH;480 481 cec_addr = cec_get_edid_phys_addr((u8 *)edid, len, NULL);482 } else {483 cec_addr = CEC_PHYS_ADDR_INVALID;484 }485 486 hdmi4_cec_set_phys_addr(&hdmi->core, cec_addr);487 488 if (need_enable)489 hdmi4_core_disable(&hdmi->core);490 491 return drm_edid;492}493 494static const struct drm_bridge_funcs hdmi4_bridge_funcs = {495 .attach = hdmi4_bridge_attach,496 .mode_set = hdmi4_bridge_mode_set,497 .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state,498 .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state,499 .atomic_reset = drm_atomic_helper_bridge_reset,500 .atomic_enable = hdmi4_bridge_enable,501 .atomic_disable = hdmi4_bridge_disable,502 .hpd_notify = hdmi4_bridge_hpd_notify,503 .edid_read = hdmi4_bridge_edid_read,504};505 506static void hdmi4_bridge_init(struct omap_hdmi *hdmi)507{508 hdmi->bridge.funcs = &hdmi4_bridge_funcs;509 hdmi->bridge.of_node = hdmi->pdev->dev.of_node;510 hdmi->bridge.ops = DRM_BRIDGE_OP_EDID;511 hdmi->bridge.type = DRM_MODE_CONNECTOR_HDMIA;512 513 drm_bridge_add(&hdmi->bridge);514}515 516static void hdmi4_bridge_cleanup(struct omap_hdmi *hdmi)517{518 drm_bridge_remove(&hdmi->bridge);519}520 521/* -----------------------------------------------------------------------------522 * Audio Callbacks523 */524 525static int hdmi_audio_startup(struct device *dev,526 void (*abort_cb)(struct device *dev))527{528 struct omap_hdmi *hd = dev_get_drvdata(dev);529 530 mutex_lock(&hd->lock);531 532 WARN_ON(hd->audio_abort_cb != NULL);533 534 hd->audio_abort_cb = abort_cb;535 536 mutex_unlock(&hd->lock);537 538 return 0;539}540 541static int hdmi_audio_shutdown(struct device *dev)542{543 struct omap_hdmi *hd = dev_get_drvdata(dev);544 545 mutex_lock(&hd->lock);546 hd->audio_abort_cb = NULL;547 hd->audio_configured = false;548 hd->audio_playing = false;549 mutex_unlock(&hd->lock);550 551 return 0;552}553 554static int hdmi_audio_start(struct device *dev)555{556 struct omap_hdmi *hd = dev_get_drvdata(dev);557 unsigned long flags;558 559 spin_lock_irqsave(&hd->audio_playing_lock, flags);560 561 if (hd->display_enabled) {562 if (!hdmi_mode_has_audio(&hd->cfg))563 DSSERR("%s: Video mode does not support audio\n",564 __func__);565 hdmi_start_audio_stream(hd);566 }567 hd->audio_playing = true;568 569 spin_unlock_irqrestore(&hd->audio_playing_lock, flags);570 return 0;571}572 573static void hdmi_audio_stop(struct device *dev)574{575 struct omap_hdmi *hd = dev_get_drvdata(dev);576 unsigned long flags;577 578 WARN_ON(!hdmi_mode_has_audio(&hd->cfg));579 580 spin_lock_irqsave(&hd->audio_playing_lock, flags);581 582 if (hd->display_enabled)583 hdmi_stop_audio_stream(hd);584 hd->audio_playing = false;585 586 spin_unlock_irqrestore(&hd->audio_playing_lock, flags);587}588 589static int hdmi_audio_config(struct device *dev,590 struct omap_dss_audio *dss_audio)591{592 struct omap_hdmi *hd = dev_get_drvdata(dev);593 int ret = 0;594 595 mutex_lock(&hd->lock);596 597 if (hd->display_enabled) {598 ret = hdmi4_audio_config(&hd->core, &hd->wp, dss_audio,599 hd->cfg.vm.pixelclock);600 if (ret)601 goto out;602 }603 604 hd->audio_configured = true;605 hd->audio_config = *dss_audio;606out:607 mutex_unlock(&hd->lock);608 609 return ret;610}611 612static const struct omap_hdmi_audio_ops hdmi_audio_ops = {613 .audio_startup = hdmi_audio_startup,614 .audio_shutdown = hdmi_audio_shutdown,615 .audio_start = hdmi_audio_start,616 .audio_stop = hdmi_audio_stop,617 .audio_config = hdmi_audio_config,618};619 620static int hdmi_audio_register(struct omap_hdmi *hdmi)621{622 struct omap_hdmi_audio_pdata pdata = {623 .dev = &hdmi->pdev->dev,624 .version = 4,625 .audio_dma_addr = hdmi_wp_get_audio_dma_addr(&hdmi->wp),626 .ops = &hdmi_audio_ops,627 };628 629 hdmi->audio_pdev = platform_device_register_data(630 &hdmi->pdev->dev, "omap-hdmi-audio", PLATFORM_DEVID_AUTO,631 &pdata, sizeof(pdata));632 633 if (IS_ERR(hdmi->audio_pdev))634 return PTR_ERR(hdmi->audio_pdev);635 636 return 0;637}638 639/* -----------------------------------------------------------------------------640 * Component Bind & Unbind641 */642 643static int hdmi4_bind(struct device *dev, struct device *master, void *data)644{645 struct dss_device *dss = dss_get_device(master);646 struct omap_hdmi *hdmi = dev_get_drvdata(dev);647 int r;648 649 hdmi->dss = dss;650 651 r = hdmi_runtime_get(hdmi);652 if (r)653 return r;654 655 r = hdmi_pll_init(dss, hdmi->pdev, &hdmi->pll, &hdmi->wp);656 if (r)657 goto err_runtime_put;658 659 r = hdmi4_cec_init(hdmi->pdev, &hdmi->core, &hdmi->wp);660 if (r)661 goto err_pll_uninit;662 663 r = hdmi_audio_register(hdmi);664 if (r) {665 DSSERR("Registering HDMI audio failed\n");666 goto err_cec_uninit;667 }668 669 hdmi->debugfs = dss_debugfs_create_file(dss, "hdmi", hdmi_dump_regs,670 hdmi);671 672 hdmi_runtime_put(hdmi);673 674 return 0;675 676err_cec_uninit:677 hdmi4_cec_uninit(&hdmi->core);678err_pll_uninit:679 hdmi_pll_uninit(&hdmi->pll);680err_runtime_put:681 hdmi_runtime_put(hdmi);682 return r;683}684 685static void hdmi4_unbind(struct device *dev, struct device *master, void *data)686{687 struct omap_hdmi *hdmi = dev_get_drvdata(dev);688 689 dss_debugfs_remove_file(hdmi->debugfs);690 691 if (hdmi->audio_pdev)692 platform_device_unregister(hdmi->audio_pdev);693 694 hdmi4_cec_uninit(&hdmi->core);695 hdmi_pll_uninit(&hdmi->pll);696}697 698static const struct component_ops hdmi4_component_ops = {699 .bind = hdmi4_bind,700 .unbind = hdmi4_unbind,701};702 703/* -----------------------------------------------------------------------------704 * Probe & Remove, Suspend & Resume705 */706 707static int hdmi4_init_output(struct omap_hdmi *hdmi)708{709 struct omap_dss_device *out = &hdmi->output;710 int r;711 712 hdmi4_bridge_init(hdmi);713 714 out->dev = &hdmi->pdev->dev;715 out->id = OMAP_DSS_OUTPUT_HDMI;716 out->type = OMAP_DISPLAY_TYPE_HDMI;717 out->name = "hdmi.0";718 out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;719 out->of_port = 0;720 721 r = omapdss_device_init_output(out, &hdmi->bridge);722 if (r < 0) {723 hdmi4_bridge_cleanup(hdmi);724 return r;725 }726 727 omapdss_device_register(out);728 729 return 0;730}731 732static void hdmi4_uninit_output(struct omap_hdmi *hdmi)733{734 struct omap_dss_device *out = &hdmi->output;735 736 omapdss_device_unregister(out);737 omapdss_device_cleanup_output(out);738 739 hdmi4_bridge_cleanup(hdmi);740}741 742static int hdmi4_probe_of(struct omap_hdmi *hdmi)743{744 struct platform_device *pdev = hdmi->pdev;745 struct device_node *node = pdev->dev.of_node;746 struct device_node *ep;747 int r;748 749 ep = of_graph_get_endpoint_by_regs(node, 0, 0);750 if (!ep)751 return 0;752 753 r = hdmi_parse_lanes_of(pdev, ep, &hdmi->phy);754 of_node_put(ep);755 return r;756}757 758static int hdmi4_probe(struct platform_device *pdev)759{760 struct omap_hdmi *hdmi;761 int irq;762 int r;763 764 hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);765 if (!hdmi)766 return -ENOMEM;767 768 hdmi->pdev = pdev;769 770 dev_set_drvdata(&pdev->dev, hdmi);771 772 mutex_init(&hdmi->lock);773 spin_lock_init(&hdmi->audio_playing_lock);774 775 r = hdmi4_probe_of(hdmi);776 if (r)777 goto err_free;778 779 r = hdmi_wp_init(pdev, &hdmi->wp, 4);780 if (r)781 goto err_free;782 783 r = hdmi_phy_init(pdev, &hdmi->phy, 4);784 if (r)785 goto err_free;786 787 r = hdmi4_core_init(pdev, &hdmi->core);788 if (r)789 goto err_free;790 791 irq = platform_get_irq(pdev, 0);792 if (irq < 0) {793 DSSERR("platform_get_irq failed\n");794 r = -ENODEV;795 goto err_free;796 }797 798 r = devm_request_threaded_irq(&pdev->dev, irq,799 NULL, hdmi_irq_handler,800 IRQF_ONESHOT, "OMAP HDMI", hdmi);801 if (r) {802 DSSERR("HDMI IRQ request failed\n");803 goto err_free;804 }805 806 hdmi->vdda_reg = devm_regulator_get(&pdev->dev, "vdda");807 if (IS_ERR(hdmi->vdda_reg)) {808 r = PTR_ERR(hdmi->vdda_reg);809 if (r != -EPROBE_DEFER)810 DSSERR("can't get VDDA regulator\n");811 goto err_free;812 }813 814 pm_runtime_enable(&pdev->dev);815 816 r = hdmi4_init_output(hdmi);817 if (r)818 goto err_pm_disable;819 820 r = component_add(&pdev->dev, &hdmi4_component_ops);821 if (r)822 goto err_uninit_output;823 824 return 0;825 826err_uninit_output:827 hdmi4_uninit_output(hdmi);828err_pm_disable:829 pm_runtime_disable(&pdev->dev);830err_free:831 kfree(hdmi);832 return r;833}834 835static void hdmi4_remove(struct platform_device *pdev)836{837 struct omap_hdmi *hdmi = platform_get_drvdata(pdev);838 839 component_del(&pdev->dev, &hdmi4_component_ops);840 841 hdmi4_uninit_output(hdmi);842 843 pm_runtime_disable(&pdev->dev);844 845 kfree(hdmi);846}847 848static const struct of_device_id hdmi_of_match[] = {849 { .compatible = "ti,omap4-hdmi", },850 {},851};852 853struct platform_driver omapdss_hdmi4hw_driver = {854 .probe = hdmi4_probe,855 .remove_new = hdmi4_remove,856 .driver = {857 .name = "omapdss_hdmi",858 .of_match_table = hdmi_of_match,859 .suppress_bind_attrs = true,860 },861};862