10 #include <linux/hdmi.h>
26 #include <sound/hdmi-codec.h>
164 	struct sti_hdmi *hdmi;  member
177 u32 hdmi_read(struct sti_hdmi *hdmi, int offset)  in hdmi_read()  argument
179 	return readl(hdmi->regs + offset);  in hdmi_read()
182 void hdmi_write(struct sti_hdmi *hdmi, u32 val, int offset)  in hdmi_write()  argument
184 	writel(val, hdmi->regs + offset);  in hdmi_write()
188  * HDMI interrupt handler threaded
195 	struct sti_hdmi *hdmi = arg;  in hdmi_irq_thread()  local
198 	if (hdmi->irq_status & HDMI_INT_HOT_PLUG) {  in hdmi_irq_thread()
199 		hdmi->hpd = readl(hdmi->regs + HDMI_STA) & HDMI_STA_HOT_PLUG;  in hdmi_irq_thread()
200 		if (hdmi->drm_dev)  in hdmi_irq_thread()
201 			drm_helper_hpd_irq_event(hdmi->drm_dev);  in hdmi_irq_thread()
207 	if (hdmi->irq_status & (HDMI_INT_SW_RST | HDMI_INT_DLL_LCK)) {  in hdmi_irq_thread()
208 		hdmi->event_received = true;  in hdmi_irq_thread()
209 		wake_up_interruptible(&hdmi->wait_event);  in hdmi_irq_thread()
213 	if (hdmi->irq_status & HDMI_INT_AUDIO_FIFO_XRUN)  in hdmi_irq_thread()
220  * HDMI interrupt handler
227 	struct sti_hdmi *hdmi = arg;  in hdmi_irq()  local
230 	hdmi->irq_status = hdmi_read(hdmi, HDMI_INT_STA);  in hdmi_irq()
233 	hdmi_write(hdmi, hdmi->irq_status, HDMI_INT_CLR);  in hdmi_irq()
236 	hdmi_read(hdmi, HDMI_INT_STA);  in hdmi_irq()
242  * Set hdmi active area depending on the drm display mode selected
244  * @hdmi: pointer on the hdmi internal structure
246 static void hdmi_active_area(struct sti_hdmi *hdmi)  in hdmi_active_area()  argument
251 	xmin = sti_vtg_get_pixel_number(hdmi->mode, 1);  in hdmi_active_area()
252 	xmax = sti_vtg_get_pixel_number(hdmi->mode, hdmi->mode.hdisplay);  in hdmi_active_area()
253 	ymin = sti_vtg_get_line_number(hdmi->mode, 0);  in hdmi_active_area()
254 	ymax = sti_vtg_get_line_number(hdmi->mode, hdmi->mode.vdisplay - 1);  in hdmi_active_area()
256 	hdmi_write(hdmi, xmin, HDMI_ACTIVE_VID_XMIN);  in hdmi_active_area()
257 	hdmi_write(hdmi, xmax, HDMI_ACTIVE_VID_XMAX);  in hdmi_active_area()
258 	hdmi_write(hdmi, ymin, HDMI_ACTIVE_VID_YMIN);  in hdmi_active_area()
259 	hdmi_write(hdmi, ymax, HDMI_ACTIVE_VID_YMAX);  in hdmi_active_area()
263  * Overall hdmi configuration
265  * @hdmi: pointer on the hdmi internal structure
267 static void hdmi_config(struct sti_hdmi *hdmi)  in hdmi_config()  argument
269 	struct drm_connector *connector = hdmi->drm_connector;  in hdmi_config()
283 	if (hdmi->mode.flags & DRM_MODE_FLAG_NHSYNC) {  in hdmi_config()
289 	if (hdmi->mode.flags & DRM_MODE_FLAG_NVSYNC) {  in hdmi_config()
294 	/* Enable HDMI */  in hdmi_config()
297 	hdmi_write(hdmi, conf, HDMI_CFG);  in hdmi_config()
303  * @hdmi: pointer on the hdmi internal structure
306 static void hdmi_infoframe_reset(struct sti_hdmi *hdmi,  in hdmi_infoframe_reset()  argument
331 	val = hdmi_read(hdmi, HDMI_SW_DI_CFG);  in hdmi_infoframe_reset()
333 	hdmi_write(hdmi, val, HDMI_SW_DI_CFG);  in hdmi_infoframe_reset()
336 	hdmi_write(hdmi, 0x0, head_offset);  in hdmi_infoframe_reset()
338 		hdmi_write(hdmi, 0x0, pack_offset + i);  in hdmi_infoframe_reset()
344  * @ptr: pointer on the hdmi internal structure
361  * @hdmi: pointer on the hdmi internal structure
365 static void hdmi_infoframe_write_infopack(struct sti_hdmi *hdmi,  in hdmi_infoframe_write_infopack()  argument
398 	val = hdmi_read(hdmi, HDMI_SW_DI_CFG);  in hdmi_infoframe_write_infopack()
400 	hdmi_write(hdmi, val, HDMI_SW_DI_CFG);  in hdmi_infoframe_write_infopack()
405 	writel(val, hdmi->regs + head_offset);  in hdmi_infoframe_write_infopack()
419 		writel(val, hdmi->regs + pack_offset + i);  in hdmi_infoframe_write_infopack()
423 	val = hdmi_read(hdmi, HDMI_SW_DI_CFG);  in hdmi_infoframe_write_infopack()
425 	hdmi_write(hdmi, val, HDMI_SW_DI_CFG);  in hdmi_infoframe_write_infopack()
432  * contains information about HDMI transmission mode such as color space,
435  * @hdmi: pointer on the hdmi internal structure
439 static int hdmi_avi_infoframe_config(struct sti_hdmi *hdmi)  in hdmi_avi_infoframe_config()  argument
441 	struct drm_display_mode *mode = &hdmi->mode;  in hdmi_avi_infoframe_config()
449 						       hdmi->drm_connector, mode);  in hdmi_avi_infoframe_config()
456 	infoframe.colorspace = hdmi->colorspace;  in hdmi_avi_infoframe_config()
466 	hdmi_infoframe_write_infopack(hdmi, buffer, ret);  in hdmi_avi_infoframe_config()
475  * contains information about HDMI transmission mode such as audio codec,
478  * @hdmi: pointer on the hdmi internal structure
482 static int hdmi_audio_infoframe_config(struct sti_hdmi *hdmi)  in hdmi_audio_infoframe_config()  argument
484 	struct hdmi_audio_params *audio = &hdmi->audio;  in hdmi_audio_infoframe_config()
498 		hdmi_infoframe_write_infopack(hdmi, buffer, ret);  in hdmi_audio_infoframe_config()
501 		val = hdmi_read(hdmi, HDMI_SW_DI_CFG);  in hdmi_audio_infoframe_config()
504 		hdmi_write(hdmi, val, HDMI_SW_DI_CFG);  in hdmi_audio_infoframe_config()
516  * @hdmi: pointer on the hdmi internal structure
521 static int hdmi_vendor_infoframe_config(struct sti_hdmi *hdmi)  in hdmi_vendor_infoframe_config()  argument
523 	struct drm_display_mode *mode = &hdmi->mode;  in hdmi_vendor_infoframe_config()
531 							  hdmi->drm_connector,  in hdmi_vendor_infoframe_config()
549 	hdmi_infoframe_write_infopack(hdmi, buffer, ret);  in hdmi_vendor_infoframe_config()
557  * Software reset of the hdmi subsystem
559  * @hdmi: pointer on the hdmi internal structure
562 static void hdmi_swreset(struct sti_hdmi *hdmi)  in hdmi_swreset()  argument
568 	/* Enable hdmi_audio clock only during hdmi reset */  in hdmi_swreset()
569 	if (clk_prepare_enable(hdmi->clk_audio))  in hdmi_swreset()
573 	hdmi->event_received = false;  in hdmi_swreset()
575 	val = hdmi_read(hdmi, HDMI_CFG);  in hdmi_swreset()
577 	hdmi_write(hdmi, val, HDMI_CFG);  in hdmi_swreset()
580 	wait_event_interruptible_timeout(hdmi->wait_event,  in hdmi_swreset()
581 					 hdmi->event_received,  in hdmi_swreset()
589 	if ((hdmi_read(hdmi, HDMI_STA) & HDMI_STA_SW_RST) == 0)  in hdmi_swreset()
590 		DRM_DEBUG_DRIVER("Warning: HDMI sw reset timeout occurs\n");  in hdmi_swreset()
592 	val = hdmi_read(hdmi, HDMI_CFG);  in hdmi_swreset()
594 	hdmi_write(hdmi, val, HDMI_CFG);  in hdmi_swreset()
597 	clk_disable_unprepare(hdmi->clk_audio);  in hdmi_swreset()
603 					hdmi_read(hdmi, reg))
612 	DBGFS_PRINT_STR("mode:", tmp ? "HDMI" : "DVI");  in hdmi_dbg_cfg()
639 	DBGFS_PRINT_STR("hdmi cable:", tmp ? "connected" : "not connected");  in hdmi_dbg_sta()
673 	struct sti_hdmi *hdmi = (struct sti_hdmi *)node->info_ent->data;  in hdmi_dbg_show()  local
675 	seq_printf(s, "HDMI: (vaddr = 0x%p)", hdmi->regs);  in hdmi_dbg_show()
677 	hdmi_dbg_cfg(s, hdmi_read(hdmi, HDMI_CFG));  in hdmi_dbg_show()
680 	hdmi_dbg_sta(s, hdmi_read(hdmi, HDMI_STA));  in hdmi_dbg_show()
683 	DBGFS_PRINT_INT("Xmin:", hdmi_read(hdmi, HDMI_ACTIVE_VID_XMIN));  in hdmi_dbg_show()
686 	DBGFS_PRINT_INT("Xmax:", hdmi_read(hdmi, HDMI_ACTIVE_VID_XMAX));  in hdmi_dbg_show()
689 	DBGFS_PRINT_INT("Ymin:", hdmi_read(hdmi, HDMI_ACTIVE_VID_YMIN));  in hdmi_dbg_show()
692 	DBGFS_PRINT_INT("Ymax:", hdmi_read(hdmi, HDMI_ACTIVE_VID_YMAX));  in hdmi_dbg_show()
694 	hdmi_dbg_sw_di_cfg(s, hdmi_read(hdmi, HDMI_SW_DI_CFG));  in hdmi_dbg_show()
735 	{ "hdmi", hdmi_dbg_show, 0, NULL },
738 static void hdmi_debugfs_init(struct sti_hdmi *hdmi, struct drm_minor *minor)  in hdmi_debugfs_init()  argument
743 		hdmi_debugfs_files[i].data = hdmi;  in hdmi_debugfs_init()
752 	struct sti_hdmi *hdmi = bridge->driver_private;  in sti_hdmi_disable()  local
754 	u32 val = hdmi_read(hdmi, HDMI_CFG);  in sti_hdmi_disable()
756 	if (!hdmi->enabled)  in sti_hdmi_disable()
761 	/* Disable HDMI */  in sti_hdmi_disable()
763 	hdmi_write(hdmi, val, HDMI_CFG);  in sti_hdmi_disable()
765 	hdmi_write(hdmi, 0xffffffff, HDMI_INT_CLR);  in sti_hdmi_disable()
768 	hdmi->phy_ops->stop(hdmi);  in sti_hdmi_disable()
771 	hdmi_infoframe_reset(hdmi, HDMI_IFRAME_SLOT_AVI);  in sti_hdmi_disable()
772 	hdmi_infoframe_reset(hdmi, HDMI_IFRAME_SLOT_AUDIO);  in sti_hdmi_disable()
773 	hdmi_infoframe_reset(hdmi, HDMI_IFRAME_SLOT_VENDOR);  in sti_hdmi_disable()
776 	hdmi_write(hdmi, 0x0000, HDMI_DFLT_CHL0_DAT);  in sti_hdmi_disable()
777 	hdmi_write(hdmi, 0x0000, HDMI_DFLT_CHL1_DAT);  in sti_hdmi_disable()
778 	hdmi_write(hdmi, 0x0060, HDMI_DFLT_CHL2_DAT);  in sti_hdmi_disable()
780 	/* Disable/unprepare hdmi clock */  in sti_hdmi_disable()
781 	clk_disable_unprepare(hdmi->clk_phy);  in sti_hdmi_disable()
782 	clk_disable_unprepare(hdmi->clk_tmds);  in sti_hdmi_disable()
783 	clk_disable_unprepare(hdmi->clk_pix);  in sti_hdmi_disable()
785 	hdmi->enabled = false;  in sti_hdmi_disable()
787 	cec_notifier_set_phys_addr(hdmi->notifier, CEC_PHYS_ADDR_INVALID);  in sti_hdmi_disable()
798  * Values computed are based on table described in HDMI specification 1.4b
836 static int hdmi_audio_configure(struct sti_hdmi *hdmi)  in hdmi_audio_configure()  argument
839 	struct hdmi_audio_params *params = &hdmi->audio;  in hdmi_audio_configure()
844 	if (!hdmi->enabled)  in hdmi_audio_configure()
851 			 params->sample_rate, hdmi->mode.clock * 1000, n);  in hdmi_audio_configure()
852 	hdmi_write(hdmi, n, HDMI_AUDN);  in hdmi_audio_configure()
854 	/* update HDMI registers according to configuration */  in hdmi_audio_configure()
877 	hdmi_write(hdmi, audio_cfg, HDMI_AUDIO_CFG);  in hdmi_audio_configure()
879 	return hdmi_audio_infoframe_config(hdmi);  in hdmi_audio_configure()
884 	struct sti_hdmi *hdmi = bridge->driver_private;  in sti_hdmi_pre_enable()  local
888 	if (hdmi->enabled)  in sti_hdmi_pre_enable()
892 	if (clk_prepare_enable(hdmi->clk_pix))  in sti_hdmi_pre_enable()
894 	if (clk_prepare_enable(hdmi->clk_tmds))  in sti_hdmi_pre_enable()
896 	if (clk_prepare_enable(hdmi->clk_phy))  in sti_hdmi_pre_enable()
899 	hdmi->enabled = true;  in sti_hdmi_pre_enable()
901 	/* Program hdmi serializer and start phy */  in sti_hdmi_pre_enable()
902 	if (!hdmi->phy_ops->start(hdmi)) {  in sti_hdmi_pre_enable()
903 		DRM_ERROR("Unable to start hdmi phy\n");  in sti_hdmi_pre_enable()
907 	/* Program hdmi active area */  in sti_hdmi_pre_enable()
908 	hdmi_active_area(hdmi);  in sti_hdmi_pre_enable()
911 	hdmi_write(hdmi, HDMI_WORKING_INT, HDMI_INT_EN);  in sti_hdmi_pre_enable()
913 	/* Program hdmi config */  in sti_hdmi_pre_enable()
914 	hdmi_config(hdmi);  in sti_hdmi_pre_enable()
917 	if (hdmi_avi_infoframe_config(hdmi))  in sti_hdmi_pre_enable()
920 	if (hdmi->audio.enabled) {  in sti_hdmi_pre_enable()
921 		if (hdmi_audio_configure(hdmi))  in sti_hdmi_pre_enable()
924 		hdmi_audio_infoframe_config(hdmi);  in sti_hdmi_pre_enable()
928 	if (hdmi_vendor_infoframe_config(hdmi))  in sti_hdmi_pre_enable()
932 	hdmi_swreset(hdmi);  in sti_hdmi_pre_enable()
939 	struct sti_hdmi *hdmi = bridge->driver_private;  in sti_hdmi_set_mode()  local
945 	drm_mode_copy(&hdmi->mode, mode);  in sti_hdmi_set_mode()
948 	ret = clk_set_rate(hdmi->clk_pix, mode->clock * 1000);  in sti_hdmi_set_mode()
954 	ret = clk_set_rate(hdmi->clk_phy, mode->clock * 1000);  in sti_hdmi_set_mode()
979 	struct sti_hdmi *hdmi = hdmi_connector->hdmi;  in sti_hdmi_connector_get_modes()  local
985 	edid = drm_get_edid(connector, hdmi->ddc_adapt);  in sti_hdmi_connector_get_modes()
989 	cec_notifier_set_phys_addr_from_edid(hdmi->notifier, edid);  in sti_hdmi_connector_get_modes()
995 		      (connector->display_info.is_hdmi ? "hdmi monitor" : "dvi monitor"),  in sti_hdmi_connector_get_modes()
1002 	DRM_ERROR("Can't read HDMI EDID\n");  in sti_hdmi_connector_get_modes()
1018 	struct sti_hdmi *hdmi = hdmi_connector->hdmi;  in sti_hdmi_connector_mode_valid()  local
1021 	result = clk_round_rate(hdmi->clk_pix, target);  in sti_hdmi_connector_mode_valid()
1027 		DRM_DEBUG_DRIVER("hdmi pixclk=%d not supported\n", target);  in sti_hdmi_connector_mode_valid()
1046 	struct sti_hdmi *hdmi = hdmi_connector->hdmi;  in sti_hdmi_connector_detect()  local
1050 	if (hdmi->hpd) {  in sti_hdmi_connector_detect()
1051 		DRM_DEBUG_DRIVER("hdmi cable connected\n");  in sti_hdmi_connector_detect()
1055 	DRM_DEBUG_DRIVER("hdmi cable disconnected\n");  in sti_hdmi_connector_detect()
1056 	cec_notifier_set_phys_addr(hdmi->notifier, CEC_PHYS_ADDR_INVALID);  in sti_hdmi_connector_detect()
1065 	struct sti_hdmi *hdmi = hdmi_connector->hdmi;  in sti_hdmi_connector_init_property()  local
1069 	hdmi->colorspace = DEFAULT_COLORSPACE_MODE;  in sti_hdmi_connector_init_property()
1078 	drm_object_attach_property(&connector->base, prop, hdmi->colorspace);  in sti_hdmi_connector_init_property()
1089 	struct sti_hdmi *hdmi = hdmi_connector->hdmi;  in sti_hdmi_connector_set_property()  local
1092 		hdmi->colorspace = val;  in sti_hdmi_connector_set_property()
1096 	DRM_ERROR("failed to set hdmi connector property\n");  in sti_hdmi_connector_set_property()
1108 	struct sti_hdmi *hdmi = hdmi_connector->hdmi;  in sti_hdmi_connector_get_property()  local
1111 		*val = hdmi->colorspace;  in sti_hdmi_connector_get_property()
1115 	DRM_ERROR("failed to get hdmi connector property\n");  in sti_hdmi_connector_get_property()
1123 	struct sti_hdmi *hdmi = hdmi_connector->hdmi;  in sti_hdmi_late_register()  local
1125 	hdmi_debugfs_init(hdmi, hdmi->drm_dev->primary);  in sti_hdmi_late_register()
1156 	struct sti_hdmi *hdmi = dev_get_drvdata(dev);  in hdmi_audio_shutdown()  local
1164 	hdmi_write(hdmi, audio_cfg, HDMI_AUDIO_CFG);  in hdmi_audio_shutdown()
1166 	hdmi->audio.enabled = false;  in hdmi_audio_shutdown()
1167 	hdmi_audio_infoframe_config(hdmi);  in hdmi_audio_shutdown()
1175 	struct sti_hdmi *hdmi = dev_get_drvdata(dev);  in hdmi_audio_hw_params()  local
1190 	hdmi->audio.sample_width = params->sample_width;  in hdmi_audio_hw_params()
1191 	hdmi->audio.sample_rate = params->sample_rate;  in hdmi_audio_hw_params()
1192 	hdmi->audio.cea = params->cea;  in hdmi_audio_hw_params()
1194 	hdmi->audio.enabled = true;  in hdmi_audio_hw_params()
1196 	ret = hdmi_audio_configure(hdmi);  in hdmi_audio_hw_params()
1206 	struct sti_hdmi *hdmi = dev_get_drvdata(dev);  in hdmi_audio_mute()  local
1211 		hdmi_write(hdmi, HDMI_SAMPLE_FLAT_ALL, HDMI_SAMPLE_FLAT_MASK);  in hdmi_audio_mute()
1213 		hdmi_write(hdmi, HDMI_SAMPLE_FLAT_NO, HDMI_SAMPLE_FLAT_MASK);  in hdmi_audio_mute()
1220 	struct sti_hdmi *hdmi = dev_get_drvdata(dev);  in hdmi_audio_get_eld()  local
1221 	struct drm_connector *connector = hdmi->drm_connector;  in hdmi_audio_get_eld()
1240 					  struct sti_hdmi *hdmi)  in sti_hdmi_register_audio_driver()  argument
1250 	hdmi->audio.enabled = false;  in sti_hdmi_register_audio_driver()
1252 	hdmi->audio_pdev = platform_device_register_data(  in sti_hdmi_register_audio_driver()
1256 	if (IS_ERR(hdmi->audio_pdev))  in sti_hdmi_register_audio_driver()
1257 		return PTR_ERR(hdmi->audio_pdev);  in sti_hdmi_register_audio_driver()
1266 	struct sti_hdmi *hdmi = dev_get_drvdata(dev);  in sti_hdmi_bind()  local
1276 	hdmi->drm_dev = drm_dev;  in sti_hdmi_bind()
1286 	connector->hdmi = hdmi;  in sti_hdmi_bind()
1292 	bridge->driver_private = hdmi;  in sti_hdmi_bind()
1305 				    hdmi->ddc_adapt);  in sti_hdmi_bind()
1312 	hdmi->drm_connector = drm_connector;  in sti_hdmi_bind()
1320 	err = sti_hdmi_register_audio_driver(dev, hdmi);  in sti_hdmi_bind()
1327 	err = hdmi_audio_infoframe_init(&hdmi->audio.cea);  in sti_hdmi_bind()
1334 	hdmi->notifier = cec_notifier_conn_register(&hdmi->dev, NULL,  in sti_hdmi_bind()
1336 	if (!hdmi->notifier) {  in sti_hdmi_bind()
1337 		hdmi->drm_connector = NULL;  in sti_hdmi_bind()
1342 	hdmi_write(hdmi, HDMI_DEFAULT_INT, HDMI_INT_EN);  in sti_hdmi_bind()
1347 	hdmi->drm_connector = NULL;  in sti_hdmi_bind()
1354 	struct sti_hdmi *hdmi = dev_get_drvdata(dev);  in sti_hdmi_unbind()  local
1356 	cec_notifier_conn_unregister(hdmi->notifier);  in sti_hdmi_unbind()
1366 		.compatible = "st,stih407-hdmi",
1377 	struct sti_hdmi *hdmi;  in sti_hdmi_probe()  local
1385 	hdmi = devm_kzalloc(dev, sizeof(*hdmi), GFP_KERNEL);  in sti_hdmi_probe()
1386 	if (!hdmi)  in sti_hdmi_probe()
1391 		hdmi->ddc_adapt = of_get_i2c_adapter_by_node(ddc);  in sti_hdmi_probe()
1393 		if (!hdmi->ddc_adapt)  in sti_hdmi_probe()
1397 	hdmi->dev = pdev->dev;  in sti_hdmi_probe()
1400 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi-reg");  in sti_hdmi_probe()
1402 		DRM_ERROR("Invalid hdmi resource\n");  in sti_hdmi_probe()
1406 	hdmi->regs = devm_ioremap(dev, res->start, resource_size(res));  in sti_hdmi_probe()
1407 	if (!hdmi->regs) {  in sti_hdmi_probe()
1412 	hdmi->phy_ops = (struct hdmi_phy_ops *)  in sti_hdmi_probe()
1416 	hdmi->clk_pix = devm_clk_get(dev, "pix");  in sti_hdmi_probe()
1417 	if (IS_ERR(hdmi->clk_pix)) {  in sti_hdmi_probe()
1419 		ret = PTR_ERR(hdmi->clk_pix);  in sti_hdmi_probe()
1423 	hdmi->clk_tmds = devm_clk_get(dev, "tmds");  in sti_hdmi_probe()
1424 	if (IS_ERR(hdmi->clk_tmds)) {  in sti_hdmi_probe()
1426 		ret = PTR_ERR(hdmi->clk_tmds);  in sti_hdmi_probe()
1430 	hdmi->clk_phy = devm_clk_get(dev, "phy");  in sti_hdmi_probe()
1431 	if (IS_ERR(hdmi->clk_phy)) {  in sti_hdmi_probe()
1433 		ret = PTR_ERR(hdmi->clk_phy);  in sti_hdmi_probe()
1437 	hdmi->clk_audio = devm_clk_get(dev, "audio");  in sti_hdmi_probe()
1438 	if (IS_ERR(hdmi->clk_audio)) {  in sti_hdmi_probe()
1440 		ret = PTR_ERR(hdmi->clk_audio);  in sti_hdmi_probe()
1444 	hdmi->hpd = readl(hdmi->regs + HDMI_STA) & HDMI_STA_HOT_PLUG;  in sti_hdmi_probe()
1446 	init_waitqueue_head(&hdmi->wait_event);  in sti_hdmi_probe()
1448 	hdmi->irq = platform_get_irq_byname(pdev, "irq");  in sti_hdmi_probe()
1449 	if (hdmi->irq < 0) {  in sti_hdmi_probe()
1450 		DRM_ERROR("Cannot get HDMI irq\n");  in sti_hdmi_probe()
1451 		ret = hdmi->irq;  in sti_hdmi_probe()
1455 	ret = devm_request_threaded_irq(dev, hdmi->irq, hdmi_irq,  in sti_hdmi_probe()
1456 			hdmi_irq_thread, IRQF_ONESHOT, dev_name(dev), hdmi);  in sti_hdmi_probe()
1458 		DRM_ERROR("Failed to register HDMI interrupt\n");  in sti_hdmi_probe()
1462 	hdmi->reset = devm_reset_control_get(dev, "hdmi");  in sti_hdmi_probe()
1463 	/* Take hdmi out of reset */  in sti_hdmi_probe()
1464 	if (!IS_ERR(hdmi->reset))  in sti_hdmi_probe()
1465 		reset_control_deassert(hdmi->reset);  in sti_hdmi_probe()
1467 	platform_set_drvdata(pdev, hdmi);  in sti_hdmi_probe()
1472 	i2c_put_adapter(hdmi->ddc_adapt);  in sti_hdmi_probe()
1479 	struct sti_hdmi *hdmi = dev_get_drvdata(&pdev->dev);  in sti_hdmi_remove()  local
1481 	i2c_put_adapter(hdmi->ddc_adapt);  in sti_hdmi_remove()
1482 	if (hdmi->audio_pdev)  in sti_hdmi_remove()
1483 		platform_device_unregister(hdmi->audio_pdev);  in sti_hdmi_remove()
1489 		.name = "sti-hdmi",