[net-next-2.6.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(enc_to_intel_encoder(encoder), 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, bool force)
{
	struct drm_encoder *encoder = intel_attached_encoder(connector);
	struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
	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 drm_encoder *encoder = intel_attached_encoder(connector);
	struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);

	/* 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_attached_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(dev, 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(dev, 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(dev, 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(dev, 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(dev, 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->enc, &intel_hdmi_enc_funcs,
			 DRM_MODE_ENCODER_TMDS);
	drm_encoder_helper_add(&intel_encoder->enc, &intel_hdmi_helper_funcs);

	drm_mode_connector_attach_encoder(&intel_connector->base,
					  &intel_encoder->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_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)
	47	{
	48	return container_of(enc_to_intel_encoder(encoder), struct intel_hdmi, base);
	49	}
	50
7d57382e EA	51	static void intel_hdmi_mode_set(struct drm_encoder *encoder,
	52	struct drm_display_mode *mode,
	53	struct drm_display_mode *adjusted_mode)
	54	{
	55	struct drm_device *dev = encoder->dev;
	56	struct drm_i915_private *dev_priv = dev->dev_private;
	57	struct drm_crtc *crtc = encoder->crtc;
	58	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
ea5b213a	59	struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
7d57382e EA	60	u32 sdvox;
7d57382e EA	61
b599c0bc AJ	62	sdvox = SDVO_ENCODING_HDMI \| SDVO_BORDER_ENABLE;
	63	if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
	64	sdvox \|= SDVO_VSYNC_ACTIVE_HIGH;
	65	if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
	66	sdvox \|= SDVO_HSYNC_ACTIVE_HIGH;
7d57382e	67
ea5b213a	68	if (intel_hdmi->has_hdmi_sink) {
7d57382e	69	sdvox \|= SDVO_AUDIO_ENABLE;
467b200d ZW	70	if (HAS_PCH_CPT(dev))
	71	sdvox \|= HDMI_MODE_SELECT;
	72	}
7d57382e	73
0f229062 ZW	74	if (intel_crtc->pipe == 1) {
	75	if (HAS_PCH_CPT(dev))
	76	sdvox \|= PORT_TRANS_B_SEL_CPT;
	77	else
	78	sdvox \|= SDVO_PIPE_B_SELECT;
	79	}
7d57382e	80
ea5b213a CW	81	I915_WRITE(intel_hdmi->sdvox_reg, sdvox);
ea5b213a CW	82	POSTING_READ(intel_hdmi->sdvox_reg);
7d57382e EA	83	}
	84
	85	static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode)
	86	{
	87	struct drm_device *dev = encoder->dev;
	88	struct drm_i915_private *dev_priv = dev->dev_private;
ea5b213a	89	struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
7d57382e EA	90	u32 temp;
7d57382e EA	91
ea5b213a	92	temp = I915_READ(intel_hdmi->sdvox_reg);
d8a2d0e0 ZW	93
	94	/* HW workaround, need to toggle enable bit off and on for 12bpc, but
	95	* we do this anyway which shows more stable in testing.
	96	*/
c619eed4	97	if (HAS_PCH_SPLIT(dev)) {
ea5b213a CW	98	I915_WRITE(intel_hdmi->sdvox_reg, temp & ~SDVO_ENABLE);
ea5b213a CW	99	POSTING_READ(intel_hdmi->sdvox_reg);
d8a2d0e0 ZW	100	}
	101
	102	if (mode != DRM_MODE_DPMS_ON) {
	103	temp &= ~SDVO_ENABLE;
7d57382e	104	} else {
d8a2d0e0	105	temp \|= SDVO_ENABLE;
7d57382e	106	}
d8a2d0e0	107
ea5b213a CW	108	I915_WRITE(intel_hdmi->sdvox_reg, temp);
ea5b213a CW	109	POSTING_READ(intel_hdmi->sdvox_reg);
d8a2d0e0 ZW	110
	111	/* HW workaround, need to write this twice for issue that may result
	112	* in first write getting masked.
	113	*/
c619eed4	114	if (HAS_PCH_SPLIT(dev)) {
ea5b213a CW	115	I915_WRITE(intel_hdmi->sdvox_reg, temp);
ea5b213a CW	116	POSTING_READ(intel_hdmi->sdvox_reg);
d8a2d0e0	117	}
7d57382e EA	118	}
7d57382e EA	119
7d57382e EA	120	static int intel_hdmi_mode_valid(struct drm_connector *connector,
	121	struct drm_display_mode *mode)
	122	{
	123	if (mode->clock > 165000)
	124	return MODE_CLOCK_HIGH;
	125	if (mode->clock < 20000)
	126	return MODE_CLOCK_HIGH;
	127
	128	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
	129	return MODE_NO_DBLESCAN;
	130
	131	return MODE_OK;
	132	}
	133
	134	static bool intel_hdmi_mode_fixup(struct drm_encoder *encoder,
	135	struct drm_display_mode *mode,
	136	struct drm_display_mode *adjusted_mode)
	137	{
	138	return true;
	139	}
	140
aa93d632	141	static enum drm_connector_status
930a9e28	142	intel_hdmi_detect(struct drm_connector *connector, bool force)
9dff6af8	143	{
674e2d08	144	struct drm_encoder *encoder = intel_attached_encoder(connector);
ea5b213a	145	struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
9dff6af8	146	struct edid *edid = NULL;
aa93d632	147	enum drm_connector_status status = connector_status_disconnected;
9dff6af8	148
ea5b213a CW	149	intel_hdmi->has_hdmi_sink = false;
ea5b213a CW	150	edid = drm_get_edid(connector, intel_hdmi->base.ddc_bus);
2ded9e27	151
aa93d632	152	if (edid) {
be9f1c4f	153	if (edid->input & DRM_EDID_INPUT_DIGITAL) {
aa93d632	154	status = connector_status_connected;
ea5b213a	155	intel_hdmi->has_hdmi_sink = drm_detect_hdmi_monitor(edid);
aa93d632	156	}
674e2d08	157	connector->display_info.raw_edid = NULL;
aa93d632	158	kfree(edid);
9dff6af8	159	}
30ad48b7	160
2ded9e27	161	return status;
7d57382e EA	162	}
	163
	164	static int intel_hdmi_get_modes(struct drm_connector *connector)
	165	{
674e2d08	166	struct drm_encoder *encoder = intel_attached_encoder(connector);
ea5b213a	167	struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
7d57382e EA	168
	169	/* We should parse the EDID data and find out if it's an HDMI sink so
	170	* we can send audio to it.
	171	*/
	172
ea5b213a	173	return intel_ddc_get_modes(connector, intel_hdmi->base.ddc_bus);
7d57382e EA	174	}
	175
	176	static void intel_hdmi_destroy(struct drm_connector *connector)
	177	{
7d57382e EA	178	drm_sysfs_connector_remove(connector);
7d57382e EA	179	drm_connector_cleanup(connector);
674e2d08	180	kfree(connector);
7d57382e EA	181	}
	182
	183	static const struct drm_encoder_helper_funcs intel_hdmi_helper_funcs = {
	184	.dpms = intel_hdmi_dpms,
	185	.mode_fixup = intel_hdmi_mode_fixup,
	186	.prepare = intel_encoder_prepare,
	187	.mode_set = intel_hdmi_mode_set,
	188	.commit = intel_encoder_commit,
	189	};
	190
	191	static const struct drm_connector_funcs intel_hdmi_connector_funcs = {
c9fb15f6	192	.dpms = drm_helper_connector_dpms,
7d57382e EA	193	.detect = intel_hdmi_detect,
	194	.fill_modes = drm_helper_probe_single_connector_modes,
	195	.destroy = intel_hdmi_destroy,
	196	};
	197
	198	static const struct drm_connector_helper_funcs intel_hdmi_connector_helper_funcs = {
	199	.get_modes = intel_hdmi_get_modes,
	200	.mode_valid = intel_hdmi_mode_valid,
674e2d08	201	.best_encoder = intel_attached_encoder,
7d57382e EA	202	};
7d57382e EA	203
7d57382e	204	static const struct drm_encoder_funcs intel_hdmi_enc_funcs = {
ea5b213a	205	.destroy = intel_encoder_destroy,
7d57382e EA	206	};
7d57382e EA	207
7d57382e EA	208	void intel_hdmi_init(struct drm_device *dev, int sdvox_reg)
	209	{
	210	struct drm_i915_private *dev_priv = dev->dev_private;
	211	struct drm_connector *connector;
21d40d37	212	struct intel_encoder *intel_encoder;
674e2d08	213	struct intel_connector *intel_connector;
ea5b213a	214	struct intel_hdmi *intel_hdmi;
7d57382e	215
ea5b213a CW	216	intel_hdmi = kzalloc(sizeof(struct intel_hdmi), GFP_KERNEL);
ea5b213a CW	217	if (!intel_hdmi)
7d57382e	218	return;
674e2d08 ZW	219
	220	intel_connector = kzalloc(sizeof(struct intel_connector), GFP_KERNEL);
	221	if (!intel_connector) {
ea5b213a	222	kfree(intel_hdmi);
674e2d08 ZW	223	return;
	224	}
	225
ea5b213a	226	intel_encoder = &intel_hdmi->base;
674e2d08	227	connector = &intel_connector->base;
7d57382e	228	drm_connector_init(dev, connector, &intel_hdmi_connector_funcs,
8d91104a	229	DRM_MODE_CONNECTOR_HDMIA);
7d57382e EA	230	drm_connector_helper_add(connector, &intel_hdmi_connector_helper_funcs);
7d57382e EA	231
21d40d37	232	intel_encoder->type = INTEL_OUTPUT_HDMI;
7d57382e	233
eb1f8e4f	234	connector->polled = DRM_CONNECTOR_POLL_HPD;
7d57382e EA	235	connector->interlace_allowed = 0;
7d57382e EA	236	connector->doublescan_allowed = 0;
21d40d37	237	intel_encoder->crtc_mask = (1 << 0) \| (1 << 1);
7d57382e EA	238
7d57382e EA	239	/* Set up the DDC bus. */
f8aed700	240	if (sdvox_reg == SDVOB) {
21d40d37 EA	241	intel_encoder->clone_mask = (1 << INTEL_HDMIB_CLONE_BIT);
21d40d37 EA	242	intel_encoder->ddc_bus = intel_i2c_create(dev, GPIOE, "HDMIB");
b01f2c3a	243	dev_priv->hotplug_supported_mask \|= HDMIB_HOTPLUG_INT_STATUS;
f8aed700	244	} else if (sdvox_reg == SDVOC) {
21d40d37 EA	245	intel_encoder->clone_mask = (1 << INTEL_HDMIC_CLONE_BIT);
21d40d37 EA	246	intel_encoder->ddc_bus = intel_i2c_create(dev, GPIOD, "HDMIC");
b01f2c3a	247	dev_priv->hotplug_supported_mask \|= HDMIC_HOTPLUG_INT_STATUS;
f8aed700	248	} else if (sdvox_reg == HDMIB) {
21d40d37 EA	249	intel_encoder->clone_mask = (1 << INTEL_HDMID_CLONE_BIT);
21d40d37 EA	250	intel_encoder->ddc_bus = intel_i2c_create(dev, PCH_GPIOE,
30ad48b7	251	"HDMIB");
b01f2c3a	252	dev_priv->hotplug_supported_mask \|= HDMIB_HOTPLUG_INT_STATUS;
f8aed700	253	} else if (sdvox_reg == HDMIC) {
21d40d37 EA	254	intel_encoder->clone_mask = (1 << INTEL_HDMIE_CLONE_BIT);
21d40d37 EA	255	intel_encoder->ddc_bus = intel_i2c_create(dev, PCH_GPIOD,
30ad48b7	256	"HDMIC");
b01f2c3a	257	dev_priv->hotplug_supported_mask \|= HDMIC_HOTPLUG_INT_STATUS;
f8aed700	258	} else if (sdvox_reg == HDMID) {
21d40d37 EA	259	intel_encoder->clone_mask = (1 << INTEL_HDMIF_CLONE_BIT);
21d40d37 EA	260	intel_encoder->ddc_bus = intel_i2c_create(dev, PCH_GPIOF,
30ad48b7	261	"HDMID");
b01f2c3a	262	dev_priv->hotplug_supported_mask \|= HDMID_HOTPLUG_INT_STATUS;
f8aed700	263	}
21d40d37	264	if (!intel_encoder->ddc_bus)
7d57382e EA	265	goto err_connector;
7d57382e EA	266
ea5b213a	267	intel_hdmi->sdvox_reg = sdvox_reg;
7d57382e	268
21d40d37	269	drm_encoder_init(dev, &intel_encoder->enc, &intel_hdmi_enc_funcs,
7d57382e	270	DRM_MODE_ENCODER_TMDS);
21d40d37	271	drm_encoder_helper_add(&intel_encoder->enc, &intel_hdmi_helper_funcs);
7d57382e	272
674e2d08	273	drm_mode_connector_attach_encoder(&intel_connector->base,
21d40d37	274	&intel_encoder->enc);
7d57382e EA	275	drm_sysfs_connector_add(connector);
	276
	277	/* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written
	278	* 0xd. Failure to do so will result in spurious interrupts being
	279	* generated on the port when a cable is not attached.
	280	*/
	281	if (IS_G4X(dev) && !IS_GM45(dev)) {
	282	u32 temp = I915_READ(PEG_BAND_GAP_DATA);
	283	I915_WRITE(PEG_BAND_GAP_DATA, (temp & ~0xf) \| 0xd);
	284	}
	285
	286	return;
	287
	288	err_connector:
	289	drm_connector_cleanup(connector);
ea5b213a	290	kfree(intel_hdmi);
674e2d08	291	kfree(intel_connector);
7d57382e EA	292
	293	return;
	294	}