[mirror_ubuntu-zesty-kernel.git] / drivers / gpu / drm / i915 / intel_hdmi.c

/*
 * Copyright 2006 Dave Airlie <airlied@linux.ie>
 * Copyright © 2006-2009 Intel Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Authors:
 *	Eric Anholt <eric@anholt.net>
 *	Jesse Barnes <jesse.barnes@intel.com>
 */

#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include "drmP.h"
#include "drm.h"
#include "drm_crtc.h"
#include "drm_edid.h"
#include "intel_drv.h"
#include "i915_drm.h"
#include "i915_drv.h"

struct intel_hdmi {
	struct intel_encoder base;
	u32 sdvox_reg;
	bool has_hdmi_sink;
};

static struct intel_hdmi *enc_to_intel_hdmi(struct drm_encoder *encoder)
{
	return container_of(encoder, struct intel_hdmi, base.base);
}

static struct intel_hdmi *intel_attached_hdmi(struct drm_connector *connector)
{
	return container_of(intel_attached_encoder(connector),
			    struct intel_hdmi, base);
}

static void intel_hdmi_mode_set(struct drm_encoder *encoder,
				struct drm_display_mode *mode,
				struct drm_display_mode *adjusted_mode)
{
	struct drm_device *dev = encoder->dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct drm_crtc *crtc = encoder->crtc;
	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
	struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
	u32 sdvox;

	sdvox = SDVO_ENCODING_HDMI | SDVO_BORDER_ENABLE;
	if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
		sdvox |= SDVO_VSYNC_ACTIVE_HIGH;
	if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
		sdvox |= SDVO_HSYNC_ACTIVE_HIGH;

	if (intel_hdmi->has_hdmi_sink) {
		sdvox |= SDVO_AUDIO_ENABLE;
		if (HAS_PCH_CPT(dev))
			sdvox |= HDMI_MODE_SELECT;
	}

	if (intel_crtc->pipe == 1) {
		if (HAS_PCH_CPT(dev))
			sdvox |= PORT_TRANS_B_SEL_CPT;
		else
			sdvox |= SDVO_PIPE_B_SELECT;
	}

	I915_WRITE(intel_hdmi->sdvox_reg, sdvox);
	POSTING_READ(intel_hdmi->sdvox_reg);
}

static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode)
{
	struct drm_device *dev = encoder->dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
	u32 temp;

	temp = I915_READ(intel_hdmi->sdvox_reg);

	/* HW workaround, need to toggle enable bit off and on for 12bpc, but
	 * we do this anyway which shows more stable in testing.
	 */
	if (HAS_PCH_SPLIT(dev)) {
		I915_WRITE(intel_hdmi->sdvox_reg, temp & ~SDVO_ENABLE);
		POSTING_READ(intel_hdmi->sdvox_reg);
	}

	if (mode != DRM_MODE_DPMS_ON) {
		temp &= ~SDVO_ENABLE;
	} else {
		temp |= SDVO_ENABLE;
	}

	I915_WRITE(intel_hdmi->sdvox_reg, temp);
	POSTING_READ(intel_hdmi->sdvox_reg);

	/* HW workaround, need to write this twice for issue that may result
	 * in first write getting masked.
	 */
	if (HAS_PCH_SPLIT(dev)) {
		I915_WRITE(intel_hdmi->sdvox_reg, temp);
		POSTING_READ(intel_hdmi->sdvox_reg);
	}
}

static int intel_hdmi_mode_valid(struct drm_connector *connector,
				 struct drm_display_mode *mode)
{
	if (mode->clock > 165000)
		return MODE_CLOCK_HIGH;
	if (mode->clock < 20000)
		return MODE_CLOCK_HIGH;

	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
		return MODE_NO_DBLESCAN;

	return MODE_OK;
}

static bool intel_hdmi_mode_fixup(struct drm_encoder *encoder,
				  struct drm_display_mode *mode,
				  struct drm_display_mode *adjusted_mode)
{
	return true;
}

static enum drm_connector_status
intel_hdmi_detect(struct drm_connector *connector)
{
	struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
	struct edid *edid = NULL;
	enum drm_connector_status status = connector_status_disconnected;

	intel_hdmi->has_hdmi_sink = false;
	edid = drm_get_edid(connector, intel_hdmi->base.ddc_bus);

	if (edid) {
		if (edid->input & DRM_EDID_INPUT_DIGITAL) {
			status = connector_status_connected;
			intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
		}
		connector->display_info.raw_edid = NULL;
		kfree(edid);
	}

	return status;
}

static int intel_hdmi_get_modes(struct drm_connector *connector)
{
	struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);

	/* We should parse the EDID data and find out if it's an HDMI sink so
	 * we can send audio to it.
	 */

	return intel_ddc_get_modes(connector, intel_hdmi->base.ddc_bus);
}

static void intel_hdmi_destroy(struct drm_connector *connector)
{
	drm_sysfs_connector_remove(connector);
	drm_connector_cleanup(connector);
	kfree(connector);
}

static const struct drm_encoder_helper_funcs intel_hdmi_helper_funcs = {
	.dpms = intel_hdmi_dpms,
	.mode_fixup = intel_hdmi_mode_fixup,
	.prepare = intel_encoder_prepare,
	.mode_set = intel_hdmi_mode_set,
	.commit = intel_encoder_commit,
};

static const struct drm_connector_funcs intel_hdmi_connector_funcs = {
	.dpms = drm_helper_connector_dpms,
	.detect = intel_hdmi_detect,
	.fill_modes = drm_helper_probe_single_connector_modes,
	.destroy = intel_hdmi_destroy,
};

static const struct drm_connector_helper_funcs intel_hdmi_connector_helper_funcs = {
	.get_modes = intel_hdmi_get_modes,
	.mode_valid = intel_hdmi_mode_valid,
	.best_encoder = intel_best_encoder,
};

static const struct drm_encoder_funcs intel_hdmi_enc_funcs = {
	.destroy = intel_encoder_destroy,
};

void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
{
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct drm_connector *connector;
	struct intel_encoder *intel_encoder;
	struct intel_connector *intel_connector;
	struct intel_hdmi *intel_hdmi;

	intel_hdmi = kzalloc(sizeof(struct intel_hdmi), GFP_KERNEL);
	if (!intel_hdmi)
		return;

	intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL);
	if (!intel_connector) {
		kfree(intel_hdmi);
		return;
	}

	intel_encoder = &intel_hdmi->base;
	connector = &intel_connector->base;
	drm_connector_init(dev, connector, &intel_hdmi_connector_funcs,
			   DRM_MODE_CONNECTOR_HDMIA);
	drm_connector_helper_add(connector, &intel_hdmi_connector_helper_funcs);

	intel_encoder->type = INTEL_OUTPUT_HDMI;

	connector->polled = DRM_CONNECTOR_POLL_HPD;
	connector->interlace_allowed = 0;
	connector->doublescan_allowed = 0;
	intel_encoder->crtc_mask = (1 << 0) | (1 << 1);

	/* Set up the DDC bus. */
	if (sdvox_reg == SDVOB) {
		intel_encoder->clone_mask = (1 << INTEL_HDMIB_CLONE_BIT);
		intel_encoder->ddc_bus = intel_i2c_create(intel_encoder,
							  GPIOE, "HDMIB");
		dev_priv->hotplug_supported_mask |= HDMIB_HOTPLUG_INT_STATUS;
	} else if (sdvox_reg == SDVOC) {
		intel_encoder->clone_mask = (1 << INTEL_HDMIC_CLONE_BIT);
		intel_encoder->ddc_bus = intel_i2c_create(intel_encoder,
							  GPIOD, "HDMIC");
		dev_priv->hotplug_supported_mask |= HDMIC_HOTPLUG_INT_STATUS;
	} else if (sdvox_reg == HDMIB) {
		intel_encoder->clone_mask = (1 << INTEL_HDMID_CLONE_BIT);
		intel_encoder->ddc_bus = intel_i2c_create(intel_encoder,
							  PCH_GPIOE, "HDMIB");
		dev_priv->hotplug_supported_mask |= HDMIB_HOTPLUG_INT_STATUS;
	} else if (sdvox_reg == HDMIC) {
		intel_encoder->clone_mask = (1 << INTEL_HDMIE_CLONE_BIT);
		intel_encoder->ddc_bus = intel_i2c_create(intel_encoder,
							  PCH_GPIOD, "HDMIC");
		dev_priv->hotplug_supported_mask |= HDMIC_HOTPLUG_INT_STATUS;
	} else if (sdvox_reg == HDMID) {
		intel_encoder->clone_mask = (1 << INTEL_HDMIF_CLONE_BIT);
		intel_encoder->ddc_bus = intel_i2c_create(intel_encoder,
							  PCH_GPIOF, "HDMID");
		dev_priv->hotplug_supported_mask |= HDMID_HOTPLUG_INT_STATUS;
	}
	if (!intel_encoder->ddc_bus)
		goto err_connector;

	intel_hdmi->sdvox_reg = sdvox_reg;

	drm_encoder_init(dev, &intel_encoder->base, &intel_hdmi_enc_funcs,
			 DRM_MODE_ENCODER_TMDS);
	drm_encoder_helper_add(&intel_encoder->base, &intel_hdmi_helper_funcs);

	intel_connector_attach_encoder(intel_connector, intel_encoder);
	drm_sysfs_connector_add(connector);

	/* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written
	 * 0xd.  Failure to do so will result in spurious interrupts being
	 * generated on the port when a cable is not attached.
	 */
	if (IS_G4X(dev) && !IS_GM45(dev)) {
		u32 temp = I915_READ(PEG_BAND_GAP_DATA);
		I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) | 0xd);
	}

	return;

err_connector:
	drm_connector_cleanup(connector);
	kfree(intel_hdmi);
	kfree(intel_connector);

	return;
}
Commit	Line	Data
7d57382e EA	1	/*
	2	* Copyright 2006 Dave Airlie <airlied@linux.ie>
	3	* Copyright © 2006-2009 Intel Corporation
	4	*
	5	* Permission is hereby granted, free of charge, to any person obtaining a
	6	* copy of this software and associated documentation files (the "Software"),
	7	* to deal in the Software without restriction, including without limitation
	8	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	9	* and/or sell copies of the Software, and to permit persons to whom the
	10	* Software is furnished to do so, subject to the following conditions:
	11	*
	12	* The above copyright notice and this permission notice (including the next
	13	* paragraph) shall be included in all copies or substantial portions of the
	14	* Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	21	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	22	* DEALINGS IN THE SOFTWARE.
	23	*
	24	* Authors:
	25	* Eric Anholt <eric@anholt.net>
	26	* Jesse Barnes <jesse.barnes@intel.com>
	27	*/
	28
	29	#include <linux/i2c.h>
5a0e3ad6	30	#include <linux/slab.h>
7d57382e EA	31	#include <linux/delay.h>
	32	#include "drmP.h"
	33	#include "drm.h"
	34	#include "drm_crtc.h"
aa93d632	35	#include "drm_edid.h"
7d57382e EA	36	#include "intel_drv.h"
	37	#include "i915_drm.h"
	38	#include "i915_drv.h"
	39
ea5b213a CW	40	struct intel_hdmi {
ea5b213a CW	41	struct intel_encoder base;
7d57382e	42	u32 sdvox_reg;
9dff6af8	43	bool has_hdmi_sink;
7d57382e EA	44	};
7d57382e EA	45
ea5b213a CW	46	static struct intel_hdmi enc_to_intel_hdmi(struct drm_encoder encoder)
ea5b213a CW	47	{
4ef69c7a	48	return container_of(encoder, struct intel_hdmi, base.base);
ea5b213a CW	49	}
ea5b213a CW	50
df0e9248 CW	51	static struct intel_hdmi intel_attached_hdmi(struct drm_connector connector)
	52	{
	53	return container_of(intel_attached_encoder(connector),
	54	struct intel_hdmi, base);
	55	}
	56
7d57382e EA	57	static void intel_hdmi_mode_set(struct drm_encoder *encoder,
	58	struct drm_display_mode *mode,
	59	struct drm_display_mode *adjusted_mode)
	60	{
	61	struct drm_device *dev = encoder->dev;
	62	struct drm_i915_private *dev_priv = dev->dev_private;
	63	struct drm_crtc *crtc = encoder->crtc;
	64	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ea5b213a	65	struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
7d57382e EA	66	u32 sdvox;
7d57382e EA	67
b599c0bc AJ	68	sdvox = SDVO_ENCODING_HDMI \| SDVO_BORDER_ENABLE;
	69	if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
	70	sdvox \|= SDVO_VSYNC_ACTIVE_HIGH;
	71	if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
	72	sdvox \|= SDVO_HSYNC_ACTIVE_HIGH;
7d57382e	73
ea5b213a	74	if (intel_hdmi->has_hdmi_sink) {
7d57382e	75	sdvox \|= SDVO_AUDIO_ENABLE;
467b200d ZW	76	if (HAS_PCH_CPT(dev))
	77	sdvox \|= HDMI_MODE_SELECT;
	78	}
7d57382e	79
0f229062 ZW	80	if (intel_crtc->pipe == 1) {
	81	if (HAS_PCH_CPT(dev))
	82	sdvox \|= PORT_TRANS_B_SEL_CPT;
	83	else
	84	sdvox \|= SDVO_PIPE_B_SELECT;
	85	}
7d57382e	86
ea5b213a CW	87	I915_WRITE(intel_hdmi->sdvox_reg, sdvox);
ea5b213a CW	88	POSTING_READ(intel_hdmi->sdvox_reg);
7d57382e EA	89	}
	90
	91	static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode)
	92	{
	93	struct drm_device *dev = encoder->dev;
	94	struct drm_i915_private *dev_priv = dev->dev_private;
ea5b213a	95	struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
7d57382e EA	96	u32 temp;
7d57382e EA	97
ea5b213a	98	temp = I915_READ(intel_hdmi->sdvox_reg);
d8a2d0e0 ZW	99
	100	/* HW workaround, need to toggle enable bit off and on for 12bpc, but
	101	* we do this anyway which shows more stable in testing.
	102	*/
c619eed4	103	if (HAS_PCH_SPLIT(dev)) {
ea5b213a CW	104	I915_WRITE(intel_hdmi->sdvox_reg, temp & ~SDVO_ENABLE);
ea5b213a CW	105	POSTING_READ(intel_hdmi->sdvox_reg);
d8a2d0e0 ZW	106	}
	107
	108	if (mode != DRM_MODE_DPMS_ON) {
	109	temp &= ~SDVO_ENABLE;
7d57382e	110	} else {
d8a2d0e0	111	temp \|= SDVO_ENABLE;
7d57382e	112	}
d8a2d0e0	113
ea5b213a CW	114	I915_WRITE(intel_hdmi->sdvox_reg, temp);
ea5b213a CW	115	POSTING_READ(intel_hdmi->sdvox_reg);
d8a2d0e0 ZW	116
	117	/* HW workaround, need to write this twice for issue that may result
	118	* in first write getting masked.
	119	*/
c619eed4	120	if (HAS_PCH_SPLIT(dev)) {
ea5b213a CW	121	I915_WRITE(intel_hdmi->sdvox_reg, temp);
ea5b213a CW	122	POSTING_READ(intel_hdmi->sdvox_reg);
d8a2d0e0	123	}
7d57382e EA	124	}
7d57382e EA	125
7d57382e EA	126	static int intel_hdmi_mode_valid(struct drm_connector *connector,
	127	struct drm_display_mode *mode)
	128	{
	129	if (mode->clock > 165000)
	130	return MODE_CLOCK_HIGH;
	131	if (mode->clock < 20000)
	132	return MODE_CLOCK_HIGH;
	133
	134	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
	135	return MODE_NO_DBLESCAN;
	136
	137	return MODE_OK;
	138	}
	139
	140	static bool intel_hdmi_mode_fixup(struct drm_encoder *encoder,
	141	struct drm_display_mode *mode,
	142	struct drm_display_mode *adjusted_mode)
	143	{
	144	return true;
	145	}
	146
aa93d632	147	static enum drm_connector_status
2ded9e27	148	intel_hdmi_detect(struct drm_connector *connector)
9dff6af8	149	{
df0e9248	150	struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
9dff6af8	151	struct edid *edid = NULL;
aa93d632	152	enum drm_connector_status status = connector_status_disconnected;
9dff6af8	153
ea5b213a CW	154	intel_hdmi->has_hdmi_sink = false;
ea5b213a CW	155	edid = drm_get_edid(connector, intel_hdmi->base.ddc_bus);
2ded9e27	156
aa93d632	157	if (edid) {
be9f1c4f	158	if (edid->input & DRM_EDID_INPUT_DIGITAL) {
aa93d632	159	status = connector_status_connected;
ea5b213a	160	intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
aa93d632	161	}
674e2d08	162	connector->display_info.raw_edid = NULL;
aa93d632	163	kfree(edid);
9dff6af8	164	}
30ad48b7	165
2ded9e27	166	return status;
7d57382e EA	167	}
	168
	169	static int intel_hdmi_get_modes(struct drm_connector *connector)
	170	{
df0e9248	171	struct intel_hdmi *intel_hdmi = intel_attached_hdmi(connector);
7d57382e EA	172
	173	/* We should parse the EDID data and find out if it's an HDMI sink so
	174	* we can send audio to it.
	175	*/
	176
ea5b213a	177	return intel_ddc_get_modes(connector, intel_hdmi->base.ddc_bus);
7d57382e EA	178	}
	179
	180	static void intel_hdmi_destroy(struct drm_connector *connector)
	181	{
7d57382e EA	182	drm_sysfs_connector_remove(connector);
7d57382e EA	183	drm_connector_cleanup(connector);
674e2d08	184	kfree(connector);
7d57382e EA	185	}
	186
	187	static const struct drm_encoder_helper_funcs intel_hdmi_helper_funcs = {
	188	.dpms = intel_hdmi_dpms,
	189	.mode_fixup = intel_hdmi_mode_fixup,
	190	.prepare = intel_encoder_prepare,
	191	.mode_set = intel_hdmi_mode_set,
	192	.commit = intel_encoder_commit,
	193	};
	194
	195	static const struct drm_connector_funcs intel_hdmi_connector_funcs = {
c9fb15f6	196	.dpms = drm_helper_connector_dpms,
7d57382e EA	197	.detect = intel_hdmi_detect,
	198	.fill_modes = drm_helper_probe_single_connector_modes,
	199	.destroy = intel_hdmi_destroy,
	200	};
	201
	202	static const struct drm_connector_helper_funcs intel_hdmi_connector_helper_funcs = {
	203	.get_modes = intel_hdmi_get_modes,
	204	.mode_valid = intel_hdmi_mode_valid,
df0e9248	205	.best_encoder = intel_best_encoder,
7d57382e EA	206	};
7d57382e EA	207
7d57382e	208	static const struct drm_encoder_funcs intel_hdmi_enc_funcs = {
ea5b213a	209	.destroy = intel_encoder_destroy,
7d57382e EA	210	};
7d57382e EA	211
7d57382e EA	212	void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
	213	{
	214	struct drm_i915_private *dev_priv = dev->dev_private;
	215	struct drm_connector *connector;
21d40d37	216	struct intel_encoder *intel_encoder;
674e2d08	217	struct intel_connector *intel_connector;
ea5b213a	218	struct intel_hdmi *intel_hdmi;
7d57382e	219
ea5b213a CW	220	intel_hdmi = kzalloc(sizeof(struct intel_hdmi), GFP_KERNEL);
ea5b213a CW	221	if (!intel_hdmi)
7d57382e	222	return;
674e2d08 ZW	223
	224	intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL);
	225	if (!intel_connector) {
ea5b213a	226	kfree(intel_hdmi);
674e2d08 ZW	227	return;
	228	}
	229
ea5b213a	230	intel_encoder = &intel_hdmi->base;
674e2d08	231	connector = &intel_connector->base;
7d57382e	232	drm_connector_init(dev, connector, &intel_hdmi_connector_funcs,
8d91104a	233	DRM_MODE_CONNECTOR_HDMIA);
7d57382e EA	234	drm_connector_helper_add(connector, &intel_hdmi_connector_helper_funcs);
7d57382e EA	235
21d40d37	236	intel_encoder->type = INTEL_OUTPUT_HDMI;
7d57382e	237
eb1f8e4f	238	connector->polled = DRM_CONNECTOR_POLL_HPD;
7d57382e EA	239	connector->interlace_allowed = 0;
7d57382e EA	240	connector->doublescan_allowed = 0;
21d40d37	241	intel_encoder->crtc_mask = (1 << 0) \| (1 << 1);
7d57382e EA	242
7d57382e EA	243	/* Set up the DDC bus. */
f8aed700	244	if (sdvox_reg == SDVOB) {
21d40d37	245	intel_encoder->clone_mask = (1 << INTEL_HDMIB_CLONE_BIT);
890f3359 CW	246	intel_encoder->ddc_bus = intel_i2c_create(intel_encoder,
890f3359 CW	247	GPIOE, "HDMIB");
b01f2c3a	248	dev_priv->hotplug_supported_mask \|= HDMIB_HOTPLUG_INT_STATUS;
f8aed700	249	} else if (sdvox_reg == SDVOC) {
21d40d37	250	intel_encoder->clone_mask = (1 << INTEL_HDMIC_CLONE_BIT);
890f3359 CW	251	intel_encoder->ddc_bus = intel_i2c_create(intel_encoder,
890f3359 CW	252	GPIOD, "HDMIC");
b01f2c3a	253	dev_priv->hotplug_supported_mask \|= HDMIC_HOTPLUG_INT_STATUS;
f8aed700	254	} else if (sdvox_reg == HDMIB) {
21d40d37	255	intel_encoder->clone_mask = (1 << INTEL_HDMID_CLONE_BIT);
890f3359 CW	256	intel_encoder->ddc_bus = intel_i2c_create(intel_encoder,
890f3359 CW	257	PCH_GPIOE, "HDMIB");
b01f2c3a	258	dev_priv->hotplug_supported_mask \|= HDMIB_HOTPLUG_INT_STATUS;
f8aed700	259	} else if (sdvox_reg == HDMIC) {
21d40d37	260	intel_encoder->clone_mask = (1 << INTEL_HDMIE_CLONE_BIT);
890f3359 CW	261	intel_encoder->ddc_bus = intel_i2c_create(intel_encoder,
890f3359 CW	262	PCH_GPIOD, "HDMIC");
b01f2c3a	263	dev_priv->hotplug_supported_mask \|= HDMIC_HOTPLUG_INT_STATUS;
f8aed700	264	} else if (sdvox_reg == HDMID) {
21d40d37	265	intel_encoder->clone_mask = (1 << INTEL_HDMIF_CLONE_BIT);
890f3359 CW	266	intel_encoder->ddc_bus = intel_i2c_create(intel_encoder,
890f3359 CW	267	PCH_GPIOF, "HDMID");
b01f2c3a	268	dev_priv->hotplug_supported_mask \|= HDMID_HOTPLUG_INT_STATUS;
f8aed700	269	}
21d40d37	270	if (!intel_encoder->ddc_bus)
7d57382e EA	271	goto err_connector;
7d57382e EA	272
ea5b213a	273	intel_hdmi->sdvox_reg = sdvox_reg;
7d57382e	274
4ef69c7a	275	drm_encoder_init(dev, &intel_encoder->base, &intel_hdmi_enc_funcs,
7d57382e	276	DRM_MODE_ENCODER_TMDS);
4ef69c7a	277	drm_encoder_helper_add(&intel_encoder->base, &intel_hdmi_helper_funcs);
7d57382e	278
df0e9248	279	intel_connector_attach_encoder(intel_connector, intel_encoder);
7d57382e EA	280	drm_sysfs_connector_add(connector);
	281
	282	/* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written
	283	* 0xd. Failure to do so will result in spurious interrupts being
	284	* generated on the port when a cable is not attached.
	285	*/
	286	if (IS_G4X(dev) && !IS_GM45(dev)) {
	287	u32 temp = I915_READ(PEG_BAND_GAP_DATA);
	288	I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) \| 0xd);
	289	}
	290
	291	return;
	292
	293	err_connector:
	294	drm_connector_cleanup(connector);
ea5b213a	295	kfree(intel_hdmi);
674e2d08	296	kfree(intel_connector);
7d57382e EA	297
	298	return;
	299	}