[GitHub/mt8127/android_kernel_alcatel_ttab.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_priv {
	u32 sdvox_reg;
	u32 save_SDVOX;
	bool has_hdmi_sink;
};

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_output *intel_output = enc_to_intel_output(encoder);
	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
	u32 sdvox;

	sdvox = SDVO_ENCODING_HDMI |
		SDVO_BORDER_ENABLE |
		SDVO_VSYNC_ACTIVE_HIGH |
		SDVO_HSYNC_ACTIVE_HIGH;

	if (hdmi_priv->has_hdmi_sink)
		sdvox |= SDVO_AUDIO_ENABLE;

	if (intel_crtc->pipe == 1)
		sdvox |= SDVO_PIPE_B_SELECT;

	I915_WRITE(hdmi_priv->sdvox_reg, sdvox);
	POSTING_READ(hdmi_priv->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_output *intel_output = enc_to_intel_output(encoder);
	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
	u32 temp;

	temp = I915_READ(hdmi_priv->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(hdmi_priv->sdvox_reg, temp & ~SDVO_ENABLE);
		POSTING_READ(hdmi_priv->sdvox_reg);
	}

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

	I915_WRITE(hdmi_priv->sdvox_reg, temp);
	POSTING_READ(hdmi_priv->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(hdmi_priv->sdvox_reg, temp);
		POSTING_READ(hdmi_priv->sdvox_reg);
	}
}

static void intel_hdmi_save(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct intel_output *intel_output = to_intel_output(connector);
	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;

	hdmi_priv->save_SDVOX = I915_READ(hdmi_priv->sdvox_reg);
}

static void intel_hdmi_restore(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
	struct drm_i915_private *dev_priv = dev->dev_private;
	struct intel_output *intel_output = to_intel_output(connector);
	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;

	I915_WRITE(hdmi_priv->sdvox_reg, hdmi_priv->save_SDVOX);
	POSTING_READ(hdmi_priv->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_output *intel_output = to_intel_output(connector);
	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
	struct edid *edid = NULL;
	enum drm_connector_status status = connector_status_disconnected;

	hdmi_priv->has_hdmi_sink = false;
	edid = drm_get_edid(&intel_output->base,
			    intel_output->ddc_bus);

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

	return status;
}

static int intel_hdmi_get_modes(struct drm_connector *connector)
{
	struct intel_output *intel_output = to_intel_output(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(intel_output);
}

static void intel_hdmi_destroy(struct drm_connector *connector)
{
	struct intel_output *intel_output = to_intel_output(connector);

	if (intel_output->i2c_bus)
		intel_i2c_destroy(intel_output->i2c_bus);
	drm_sysfs_connector_remove(connector);
	drm_connector_cleanup(connector);
	kfree(intel_output);
}

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,
	.save = intel_hdmi_save,
	.restore = intel_hdmi_restore,
	.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 void intel_hdmi_enc_destroy(struct drm_encoder *encoder)
{
	drm_encoder_cleanup(encoder);
}

static const struct drm_encoder_funcs intel_hdmi_enc_funcs = {
	.destroy = intel_hdmi_enc_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_output *intel_output;
	struct intel_hdmi_priv *hdmi_priv;

	intel_output = kcalloc(sizeof(struct intel_output) +
			       sizeof(struct intel_hdmi_priv), 1, GFP_KERNEL);
	if (!intel_output)
		return;
	hdmi_priv = (struct intel_hdmi_priv *)(intel_output + 1);

	connector = &intel_output->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_output->type = INTEL_OUTPUT_HDMI;

	connector->interlace_allowed = 0;
	connector->doublescan_allowed = 0;
	intel_output->crtc_mask = (1 << 0) | (1 << 1);

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

	hdmi_priv->sdvox_reg = sdvox_reg;
	intel_output->dev_priv = hdmi_priv;

	drm_encoder_init(dev, &intel_output->enc, &intel_hdmi_enc_funcs,
			 DRM_MODE_ENCODER_TMDS);
	drm_encoder_helper_add(&intel_output->enc, &intel_hdmi_helper_funcs);

	drm_mode_connector_attach_encoder(&intel_output->base,
					  &intel_output->enc);
	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_output);

	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
	40	struct intel_hdmi_priv {
	41	u32 sdvox_reg;
	42	u32 save_SDVOX;
9dff6af8	43	bool has_hdmi_sink;
7d57382e EA	44	};
	45
	46	static void intel_hdmi_mode_set(struct drm_encoder *encoder,
	47	struct drm_display_mode *mode,
	48	struct drm_display_mode *adjusted_mode)
	49	{
	50	struct drm_device *dev = encoder->dev;
	51	struct drm_i915_private *dev_priv = dev->dev_private;
	52	struct drm_crtc *crtc = encoder->crtc;
	53	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
	54	struct intel_output *intel_output = enc_to_intel_output(encoder);
	55	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
	56	u32 sdvox;
	57
	58	sdvox = SDVO_ENCODING_HDMI \|
	59	SDVO_BORDER_ENABLE \|
	60	SDVO_VSYNC_ACTIVE_HIGH \|
56d21b07	61	SDVO_HSYNC_ACTIVE_HIGH;
7d57382e EA	62
	63	if (hdmi_priv->has_hdmi_sink)
	64	sdvox \|= SDVO_AUDIO_ENABLE;
	65
	66	if (intel_crtc->pipe == 1)
	67	sdvox \|= SDVO_PIPE_B_SELECT;
	68
	69	I915_WRITE(hdmi_priv->sdvox_reg, sdvox);
	70	POSTING_READ(hdmi_priv->sdvox_reg);
	71	}
	72
	73	static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode)
	74	{
	75	struct drm_device *dev = encoder->dev;
	76	struct drm_i915_private *dev_priv = dev->dev_private;
	77	struct intel_output *intel_output = enc_to_intel_output(encoder);
	78	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
	79	u32 temp;
	80
d8a2d0e0 ZW	81	temp = I915_READ(hdmi_priv->sdvox_reg);
	82
	83	/* HW workaround, need to toggle enable bit off and on for 12bpc, but
	84	* we do this anyway which shows more stable in testing.
	85	*/
c619eed4	86	if (HAS_PCH_SPLIT(dev)) {
7d57382e	87	I915_WRITE(hdmi_priv->sdvox_reg, temp & ~SDVO_ENABLE);
d8a2d0e0 ZW	88	POSTING_READ(hdmi_priv->sdvox_reg);
	89	}
	90
	91	if (mode != DRM_MODE_DPMS_ON) {
	92	temp &= ~SDVO_ENABLE;
7d57382e	93	} else {
d8a2d0e0	94	temp \|= SDVO_ENABLE;
7d57382e	95	}
d8a2d0e0 ZW	96
d8a2d0e0 ZW	97	I915_WRITE(hdmi_priv->sdvox_reg, temp);
7d57382e	98	POSTING_READ(hdmi_priv->sdvox_reg);
d8a2d0e0 ZW	99
	100	/* HW workaround, need to write this twice for issue that may result
	101	* in first write getting masked.
	102	*/
c619eed4	103	if (HAS_PCH_SPLIT(dev)) {
d8a2d0e0 ZW	104	I915_WRITE(hdmi_priv->sdvox_reg, temp);
	105	POSTING_READ(hdmi_priv->sdvox_reg);
	106	}
7d57382e EA	107	}
	108
	109	static void intel_hdmi_save(struct drm_connector *connector)
	110	{
	111	struct drm_device *dev = connector->dev;
	112	struct drm_i915_private *dev_priv = dev->dev_private;
	113	struct intel_output *intel_output = to_intel_output(connector);
	114	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
	115
	116	hdmi_priv->save_SDVOX = I915_READ(hdmi_priv->sdvox_reg);
	117	}
	118
	119	static void intel_hdmi_restore(struct drm_connector *connector)
	120	{
	121	struct drm_device *dev = connector->dev;
	122	struct drm_i915_private *dev_priv = dev->dev_private;
	123	struct intel_output *intel_output = to_intel_output(connector);
	124	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
	125
	126	I915_WRITE(hdmi_priv->sdvox_reg, hdmi_priv->save_SDVOX);
	127	POSTING_READ(hdmi_priv->sdvox_reg);
	128	}
	129
	130	static int intel_hdmi_mode_valid(struct drm_connector *connector,
	131	struct drm_display_mode *mode)
	132	{
	133	if (mode->clock > 165000)
	134	return MODE_CLOCK_HIGH;
	135	if (mode->clock < 20000)
	136	return MODE_CLOCK_HIGH;
	137
	138	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
	139	return MODE_NO_DBLESCAN;
	140
	141	return MODE_OK;
	142	}
	143
	144	static bool intel_hdmi_mode_fixup(struct drm_encoder *encoder,
	145	struct drm_display_mode *mode,
	146	struct drm_display_mode *adjusted_mode)
	147	{
	148	return true;
	149	}
	150
aa93d632	151	static enum drm_connector_status
2ded9e27	152	intel_hdmi_detect(struct drm_connector *connector)
9dff6af8 ML	153	{
	154	struct intel_output *intel_output = to_intel_output(connector);
	155	struct intel_hdmi_priv *hdmi_priv = intel_output->dev_priv;
	156	struct edid *edid = NULL;
aa93d632	157	enum drm_connector_status status = connector_status_disconnected;
9dff6af8	158
2ded9e27	159	hdmi_priv->has_hdmi_sink = false;
9dff6af8	160	edid = drm_get_edid(&intel_output->base,
f9c10a9b	161	intel_output->ddc_bus);
2ded9e27	162
aa93d632	163	if (edid) {
be9f1c4f	164	if (edid->input & DRM_EDID_INPUT_DIGITAL) {
aa93d632 KP	165	status = connector_status_connected;
	166	hdmi_priv->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
	167	}
9dff6af8	168	intel_output->base.display_info.raw_edid = NULL;
aa93d632	169	kfree(edid);
9dff6af8	170	}
30ad48b7	171
2ded9e27	172	return status;
7d57382e EA	173	}
	174
	175	static int intel_hdmi_get_modes(struct drm_connector *connector)
	176	{
	177	struct intel_output *intel_output = to_intel_output(connector);
	178
	179	/* We should parse the EDID data and find out if it's an HDMI sink so
	180	* we can send audio to it.
	181	*/
	182
	183	return intel_ddc_get_modes(intel_output);
	184	}
	185
	186	static void intel_hdmi_destroy(struct drm_connector *connector)
	187	{
	188	struct intel_output *intel_output = to_intel_output(connector);
	189
	190	if (intel_output->i2c_bus)
	191	intel_i2c_destroy(intel_output->i2c_bus);
	192	drm_sysfs_connector_remove(connector);
	193	drm_connector_cleanup(connector);
	194	kfree(intel_output);
	195	}
	196
	197	static const struct drm_encoder_helper_funcs intel_hdmi_helper_funcs = {
	198	.dpms = intel_hdmi_dpms,
	199	.mode_fixup = intel_hdmi_mode_fixup,
	200	.prepare = intel_encoder_prepare,
	201	.mode_set = intel_hdmi_mode_set,
	202	.commit = intel_encoder_commit,
	203	};
	204
	205	static const struct drm_connector_funcs intel_hdmi_connector_funcs = {
c9fb15f6	206	.dpms = drm_helper_connector_dpms,
7d57382e EA	207	.save = intel_hdmi_save,
	208	.restore = intel_hdmi_restore,
	209	.detect = intel_hdmi_detect,
	210	.fill_modes = drm_helper_probe_single_connector_modes,
	211	.destroy = intel_hdmi_destroy,
	212	};
	213
	214	static const struct drm_connector_helper_funcs intel_hdmi_connector_helper_funcs = {
	215	.get_modes = intel_hdmi_get_modes,
	216	.mode_valid = intel_hdmi_mode_valid,
	217	.best_encoder = intel_best_encoder,
	218	};
	219
	220	static void intel_hdmi_enc_destroy(struct drm_encoder *encoder)
	221	{
	222	drm_encoder_cleanup(encoder);
	223	}
	224
	225	static const struct drm_encoder_funcs intel_hdmi_enc_funcs = {
	226	.destroy = intel_hdmi_enc_destroy,
	227	};
	228
7d57382e EA	229	void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
	230	{
	231	struct drm_i915_private *dev_priv = dev->dev_private;
	232	struct drm_connector *connector;
	233	struct intel_output *intel_output;
	234	struct intel_hdmi_priv *hdmi_priv;
	235
	236	intel_output = kcalloc(sizeof(struct intel_output) +
	237	sizeof(struct intel_hdmi_priv), 1, GFP_KERNEL);
	238	if (!intel_output)
	239	return;
	240	hdmi_priv = (struct intel_hdmi_priv *)(intel_output + 1);
	241
	242	connector = &intel_output->base;
	243	drm_connector_init(dev, connector, &intel_hdmi_connector_funcs,
8d91104a	244	DRM_MODE_CONNECTOR_HDMIA);
7d57382e EA	245	drm_connector_helper_add(connector, &intel_hdmi_connector_helper_funcs);
	246
	247	intel_output->type = INTEL_OUTPUT_HDMI;
	248
	249	connector->interlace_allowed = 0;
	250	connector->doublescan_allowed = 0;
f8aed700	251	intel_output->crtc_mask = (1 << 0) \| (1 << 1);
7d57382e EA	252
7d57382e EA	253	/* Set up the DDC bus. */
f8aed700 ML	254	if (sdvox_reg == SDVOB) {
f8aed700 ML	255	intel_output->clone_mask = (1 << INTEL_HDMIB_CLONE_BIT);
7d57382e	256	intel_output->ddc_bus = intel_i2c_create(dev, GPIOE, "HDMIB");
b01f2c3a	257	dev_priv->hotplug_supported_mask \|= HDMIB_HOTPLUG_INT_STATUS;
f8aed700 ML	258	} else if (sdvox_reg == SDVOC) {
f8aed700 ML	259	intel_output->clone_mask = (1 << INTEL_HDMIC_CLONE_BIT);
7d57382e	260	intel_output->ddc_bus = intel_i2c_create(dev, GPIOD, "HDMIC");
b01f2c3a	261	dev_priv->hotplug_supported_mask \|= HDMIC_HOTPLUG_INT_STATUS;
f8aed700 ML	262	} else if (sdvox_reg == HDMIB) {
f8aed700 ML	263	intel_output->clone_mask = (1 << INTEL_HDMID_CLONE_BIT);
30ad48b7 ZW	264	intel_output->ddc_bus = intel_i2c_create(dev, PCH_GPIOE,
30ad48b7 ZW	265	"HDMIB");
b01f2c3a	266	dev_priv->hotplug_supported_mask \|= HDMIB_HOTPLUG_INT_STATUS;
f8aed700 ML	267	} else if (sdvox_reg == HDMIC) {
f8aed700 ML	268	intel_output->clone_mask = (1 << INTEL_HDMIE_CLONE_BIT);
30ad48b7 ZW	269	intel_output->ddc_bus = intel_i2c_create(dev, PCH_GPIOD,
30ad48b7 ZW	270	"HDMIC");
b01f2c3a	271	dev_priv->hotplug_supported_mask \|= HDMIC_HOTPLUG_INT_STATUS;
f8aed700 ML	272	} else if (sdvox_reg == HDMID) {
f8aed700 ML	273	intel_output->clone_mask = (1 << INTEL_HDMIF_CLONE_BIT);
30ad48b7 ZW	274	intel_output->ddc_bus = intel_i2c_create(dev, PCH_GPIOF,
30ad48b7 ZW	275	"HDMID");
b01f2c3a	276	dev_priv->hotplug_supported_mask \|= HDMID_HOTPLUG_INT_STATUS;
f8aed700	277	}
7d57382e EA	278	if (!intel_output->ddc_bus)
	279	goto err_connector;
	280
	281	hdmi_priv->sdvox_reg = sdvox_reg;
	282	intel_output->dev_priv = hdmi_priv;
	283
	284	drm_encoder_init(dev, &intel_output->enc, &intel_hdmi_enc_funcs,
	285	DRM_MODE_ENCODER_TMDS);
	286	drm_encoder_helper_add(&intel_output->enc, &intel_hdmi_helper_funcs);
	287
	288	drm_mode_connector_attach_encoder(&intel_output->base,
	289	&intel_output->enc);
	290	drm_sysfs_connector_add(connector);
	291
	292	/* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written
	293	* 0xd. Failure to do so will result in spurious interrupts being
	294	* generated on the port when a cable is not attached.
	295	*/
	296	if (IS_G4X(dev) && !IS_GM45(dev)) {
	297	u32 temp = I915_READ(PEG_BAND_GAP_DATA);
	298	I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) \| 0xd);
	299	}
	300
	301	return;
	302
	303	err_connector:
	304	drm_connector_cleanup(connector);
	305	kfree(intel_output);
	306
	307	return;
	308	}