Commit a3376e3e authored by Rob Clark's avatar Rob Clark Committed by Dave Airlie
Browse files

drm/msm: convert to drm_bridge 



Drop the msm_connector base class, and special calls to base class
methods from the encoder, and use instead drm_bridge.  This allows for a
cleaner division between the hdmi (and in future dsi) blocks, from the
mdp block.

Signed-off-by: default avatarRob Clark <robdclark@gmail.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent 3b336ec4

drivers/gpu/drm/msm/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -7,6 +7,7 @@ msm-y := \ 
	adreno/adreno_gpu.o \

	adreno/a3xx_gpu.o \

	hdmi/hdmi.o \

	hdmi/hdmi_bridge.o \

	hdmi/hdmi_connector.o \

	hdmi/hdmi_i2c.o \

	hdmi/hdmi_phy_8960.o \
@@ -17,7 +18,6 @@ msm-y := \ 
	mdp4/mdp4_irq.o \

	mdp4/mdp4_kms.o \

	mdp4/mdp4_plane.o \

	msm_connector.o \

	msm_drv.o \

	msm_fb.o \

	msm_gem.o \

drivers/gpu/drm/msm/hdmi/hdmi.c

+43 −6
Original line number Diff line number Diff line
@@ -56,8 +56,9 @@ static irqreturn_t hdmi_irq(int irq, void *dev_id) 
	return IRQ_HANDLED;

}



void hdmi_destroy(struct hdmi *hdmi)

void hdmi_destroy(struct kref *kref)

{

	struct hdmi *hdmi = container_of(kref, struct hdmi, refcount);

	struct hdmi_phy *phy = hdmi->phy;



	if (phy)
@@ -70,9 +71,10 @@ void hdmi_destroy(struct hdmi *hdmi) 
}



/* initialize connector */

int hdmi_init(struct hdmi *hdmi, struct drm_device *dev,

		struct drm_connector *connector)

int hdmi_init(struct drm_device *dev, struct drm_encoder *encoder)

{

	struct hdmi *hdmi = NULL;

	struct msm_drm_private *priv = dev->dev_private;

	struct platform_device *pdev = hdmi_pdev;

	struct hdmi_platform_config *config;

	int ret;
@@ -85,11 +87,19 @@ int hdmi_init(struct hdmi *hdmi, struct drm_device *dev, 


	config = pdev->dev.platform_data;



	hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);

	if (!hdmi) {

		ret = -ENOMEM;

		goto fail;

	}



	kref_init(&hdmi->refcount);



	get_device(&pdev->dev);



	hdmi->dev = dev;

	hdmi->pdev = pdev;

	hdmi->connector = connector;

	hdmi->encoder = encoder;



	/* not sure about which phy maps to which msm.. probably I miss some */

	if (config->phy_init)
@@ -152,6 +162,22 @@ int hdmi_init(struct hdmi *hdmi, struct drm_device *dev, 
		goto fail;

	}



	hdmi->bridge = hdmi_bridge_init(hdmi);

	if (IS_ERR(hdmi->bridge)) {

		ret = PTR_ERR(hdmi->bridge);

		dev_err(dev->dev, "failed to create HDMI bridge: %d\n", ret);

		hdmi->bridge = NULL;

		goto fail;

	}



	hdmi->connector = hdmi_connector_init(hdmi);

	if (IS_ERR(hdmi->connector)) {

		ret = PTR_ERR(hdmi->connector);

		dev_err(dev->dev, "failed to create HDMI connector: %d\n", ret);

		hdmi->connector = NULL;

		goto fail;

	}



	hdmi->irq = platform_get_irq(pdev, 0);

	if (hdmi->irq < 0) {

		ret = hdmi->irq;
@@ -168,11 +194,22 @@ int hdmi_init(struct hdmi *hdmi, struct drm_device *dev, 
		goto fail;

	}



	encoder->bridge = hdmi->bridge;



	priv->bridges[priv->num_bridges++]       = hdmi->bridge;

	priv->connectors[priv->num_connectors++] = hdmi->connector;



	return 0;



fail:

	if (hdmi)

		hdmi_destroy(hdmi);

	if (hdmi) {

		/* bridge/connector are normally destroyed by drm: */

		if (hdmi->bridge)

			hdmi->bridge->funcs->destroy(hdmi->bridge);

		if (hdmi->connector)

			hdmi->connector->funcs->destroy(hdmi->connector);

		hdmi_destroy(&hdmi->refcount);

	}



	return ret;

}

drivers/gpu/drm/msm/hdmi/hdmi.h

+25 −6
Original line number Diff line number Diff line
@@ -30,6 +30,8 @@ 
struct hdmi_phy;



struct hdmi {

	struct kref refcount;



	struct drm_device *dev;

	struct platform_device *pdev;
@@ -45,6 +47,10 @@ struct hdmi { 
	struct hdmi_phy *phy;

	struct i2c_adapter *i2c;

	struct drm_connector *connector;

	struct drm_bridge *bridge;



	/* the encoder we are hooked to (outside of hdmi block) */

	struct drm_encoder *encoder;



	bool hdmi_mode;               /* are we in hdmi mode? */
@@ -58,9 +64,7 @@ struct hdmi_platform_config { 
};



void hdmi_set_mode(struct hdmi *hdmi, bool power_on);

void hdmi_destroy(struct hdmi *hdmi);

int hdmi_init(struct hdmi *hdmi, struct drm_device *dev,

		struct drm_connector *connector);

void hdmi_destroy(struct kref *kref);



static inline void hdmi_write(struct hdmi *hdmi, u32 reg, u32 data)

{
@@ -72,6 +76,17 @@ static inline u32 hdmi_read(struct hdmi *hdmi, u32 reg) 
	return msm_readl(hdmi->mmio + reg);

}



static inline struct hdmi * hdmi_reference(struct hdmi *hdmi)

{

	kref_get(&hdmi->refcount);

	return hdmi;

}



static inline void hdmi_unreference(struct hdmi *hdmi)

{

	kref_put(&hdmi->refcount, hdmi_destroy);

}



/*

 * The phy appears to be different, for example between 8960 and 8x60,

 * so split the phy related functions out and load the correct one at
@@ -89,17 +104,21 @@ struct hdmi_phy { 
	const struct hdmi_phy_funcs *funcs;

};



/*

 * phy can be different on different generations:

 */

struct hdmi_phy *hdmi_phy_8960_init(struct hdmi *hdmi);

struct hdmi_phy *hdmi_phy_8x60_init(struct hdmi *hdmi);



/*

 * hdmi bridge:

 */



struct drm_bridge *hdmi_bridge_init(struct hdmi *hdmi);



/*

 * hdmi connector:

 */



void hdmi_connector_irq(struct drm_connector *connector);

struct drm_connector *hdmi_connector_init(struct hdmi *hdmi);



/*

 * i2c adapter for ddc:

drivers/gpu/drm/msm/hdmi/hdmi_bridge.c

0 → 100644
+167 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2013 Red Hat

 * Author: Rob Clark <robdclark@gmail.com>

 *

 * This program is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 as published by

 * the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for

 * more details.

 *

 * You should have received a copy of the GNU General Public License along with

 * this program.  If not, see <http://www.gnu.org/licenses/>.

 */



#include "hdmi.h"



struct hdmi_bridge {

	struct drm_bridge base;



	struct hdmi *hdmi;



	unsigned long int pixclock;

};

#define to_hdmi_bridge(x) container_of(x, struct hdmi_bridge, base)



static void hdmi_bridge_destroy(struct drm_bridge *bridge)

{

	struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);

	hdmi_unreference(hdmi_bridge->hdmi);

	drm_bridge_cleanup(bridge);

	kfree(hdmi_bridge);

}



static void hdmi_bridge_pre_enable(struct drm_bridge *bridge)

{

	struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);

	struct hdmi *hdmi = hdmi_bridge->hdmi;

	struct hdmi_phy *phy = hdmi->phy;



	DBG("power up");

	phy->funcs->powerup(phy, hdmi_bridge->pixclock);

	hdmi_set_mode(hdmi, true);

}



static void hdmi_bridge_enable(struct drm_bridge *bridge)

{

}



static void hdmi_bridge_disable(struct drm_bridge *bridge)

{

}



static void hdmi_bridge_post_disable(struct drm_bridge *bridge)

{

	struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);

	struct hdmi *hdmi = hdmi_bridge->hdmi;

	struct hdmi_phy *phy = hdmi->phy;



	DBG("power down");

	hdmi_set_mode(hdmi, false);

	phy->funcs->powerdown(phy);

}



static void hdmi_bridge_mode_set(struct drm_bridge *bridge,

		 struct drm_display_mode *mode,

		 struct drm_display_mode *adjusted_mode)

{

	struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);

	struct hdmi *hdmi = hdmi_bridge->hdmi;

	int hstart, hend, vstart, vend;

	uint32_t frame_ctrl;



	mode = adjusted_mode;



	hdmi_bridge->pixclock = mode->clock * 1000;



	hdmi->hdmi_mode = drm_match_cea_mode(mode) > 1;



	hstart = mode->htotal - mode->hsync_start;

	hend   = mode->htotal - mode->hsync_start + mode->hdisplay;



	vstart = mode->vtotal - mode->vsync_start - 1;

	vend   = mode->vtotal - mode->vsync_start + mode->vdisplay - 1;



	DBG("htotal=%d, vtotal=%d, hstart=%d, hend=%d, vstart=%d, vend=%d",

			mode->htotal, mode->vtotal, hstart, hend, vstart, vend);



	hdmi_write(hdmi, REG_HDMI_TOTAL,

			HDMI_TOTAL_H_TOTAL(mode->htotal - 1) |

			HDMI_TOTAL_V_TOTAL(mode->vtotal - 1));



	hdmi_write(hdmi, REG_HDMI_ACTIVE_HSYNC,

			HDMI_ACTIVE_HSYNC_START(hstart) |

			HDMI_ACTIVE_HSYNC_END(hend));

	hdmi_write(hdmi, REG_HDMI_ACTIVE_VSYNC,

			HDMI_ACTIVE_VSYNC_START(vstart) |

			HDMI_ACTIVE_VSYNC_END(vend));



	if (mode->flags & DRM_MODE_FLAG_INTERLACE) {

		hdmi_write(hdmi, REG_HDMI_VSYNC_TOTAL_F2,

				HDMI_VSYNC_TOTAL_F2_V_TOTAL(mode->vtotal));

		hdmi_write(hdmi, REG_HDMI_VSYNC_ACTIVE_F2,

				HDMI_VSYNC_ACTIVE_F2_START(vstart + 1) |

				HDMI_VSYNC_ACTIVE_F2_END(vend + 1));

	} else {

		hdmi_write(hdmi, REG_HDMI_VSYNC_TOTAL_F2,

				HDMI_VSYNC_TOTAL_F2_V_TOTAL(0));

		hdmi_write(hdmi, REG_HDMI_VSYNC_ACTIVE_F2,

				HDMI_VSYNC_ACTIVE_F2_START(0) |

				HDMI_VSYNC_ACTIVE_F2_END(0));

	}



	frame_ctrl = 0;

	if (mode->flags & DRM_MODE_FLAG_NHSYNC)

		frame_ctrl |= HDMI_FRAME_CTRL_HSYNC_LOW;

	if (mode->flags & DRM_MODE_FLAG_NVSYNC)

		frame_ctrl |= HDMI_FRAME_CTRL_VSYNC_LOW;

	if (mode->flags & DRM_MODE_FLAG_INTERLACE)

		frame_ctrl |= HDMI_FRAME_CTRL_INTERLACED_EN;

	DBG("frame_ctrl=%08x", frame_ctrl);

	hdmi_write(hdmi, REG_HDMI_FRAME_CTRL, frame_ctrl);



	// TODO until we have audio, this might be safest:

	if (hdmi->hdmi_mode)

		hdmi_write(hdmi, REG_HDMI_GC, HDMI_GC_MUTE);

}



static const struct drm_bridge_funcs hdmi_bridge_funcs = {

		.pre_enable = hdmi_bridge_pre_enable,

		.enable = hdmi_bridge_enable,

		.disable = hdmi_bridge_disable,

		.post_disable = hdmi_bridge_post_disable,

		.mode_set = hdmi_bridge_mode_set,

		.destroy = hdmi_bridge_destroy,

};





/* initialize bridge */

struct drm_bridge *hdmi_bridge_init(struct hdmi *hdmi)

{

	struct drm_bridge *bridge = NULL;

	struct hdmi_bridge *hdmi_bridge;

	int ret;



	hdmi_bridge = kzalloc(sizeof(*hdmi_bridge), GFP_KERNEL);

	if (!hdmi_bridge) {

		ret = -ENOMEM;

		goto fail;

	}



	hdmi_bridge->hdmi = hdmi_reference(hdmi);



	bridge = &hdmi_bridge->base;



	drm_bridge_init(hdmi->dev, bridge, &hdmi_bridge_funcs);



	return bridge;



fail:

	if (bridge)

		hdmi_bridge_destroy(bridge);



	return ERR_PTR(ret);

}

drivers/gpu/drm/msm/hdmi/hdmi_connector.c

+31 −125
Original line number Diff line number Diff line
@@ -17,14 +17,11 @@ 


#include <linux/gpio.h>



#include "msm_connector.h"

#include "hdmi.h"



struct hdmi_connector {

	struct msm_connector base;

	struct hdmi hdmi;

	unsigned long int pixclock;

	bool enabled;

	struct drm_connector base;

	struct hdmi *hdmi;

};

#define to_hdmi_connector(x) container_of(x, struct hdmi_connector, base)
@@ -90,8 +87,8 @@ error1: 


static int hpd_enable(struct hdmi_connector *hdmi_connector)

{

	struct hdmi *hdmi = &hdmi_connector->hdmi;

	struct drm_device *dev = hdmi_connector->base.base.dev;

	struct hdmi *hdmi = hdmi_connector->hdmi;

	struct drm_device *dev = hdmi_connector->base.dev;

	struct hdmi_phy *phy = hdmi->phy;

	uint32_t hpd_ctrl;

	int ret;
@@ -158,8 +155,8 @@ fail: 


static int hdp_disable(struct hdmi_connector *hdmi_connector)

{

	struct hdmi *hdmi = &hdmi_connector->hdmi;

	struct drm_device *dev = hdmi_connector->base.base.dev;

	struct hdmi *hdmi = hdmi_connector->hdmi;

	struct drm_device *dev = hdmi_connector->base.dev;

	int ret = 0;



	/* Disable HPD interrupt */
@@ -194,9 +191,8 @@ fail: 


void hdmi_connector_irq(struct drm_connector *connector)

{

	struct msm_connector *msm_connector = to_msm_connector(connector);

	struct hdmi_connector *hdmi_connector = to_hdmi_connector(msm_connector);

	struct hdmi *hdmi = &hdmi_connector->hdmi;

	struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);

	struct hdmi *hdmi = hdmi_connector->hdmi;

	uint32_t hpd_int_status, hpd_int_ctrl;



	/* Process HPD: */
@@ -226,9 +222,8 @@ void hdmi_connector_irq(struct drm_connector *connector) 
static enum drm_connector_status hdmi_connector_detect(

		struct drm_connector *connector, bool force)

{

	struct msm_connector *msm_connector = to_msm_connector(connector);

	struct hdmi_connector *hdmi_connector = to_hdmi_connector(msm_connector);

	struct hdmi *hdmi = &hdmi_connector->hdmi;

	struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);

	struct hdmi *hdmi = hdmi_connector->hdmi;

	uint32_t hpd_int_status;

	int retry = 20;
@@ -249,24 +244,22 @@ static enum drm_connector_status hdmi_connector_detect( 


static void hdmi_connector_destroy(struct drm_connector *connector)

{

	struct msm_connector *msm_connector = to_msm_connector(connector);

	struct hdmi_connector *hdmi_connector = to_hdmi_connector(msm_connector);

	struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);



	hdp_disable(hdmi_connector);



	drm_sysfs_connector_remove(connector);

	drm_connector_cleanup(connector);



	hdmi_destroy(&hdmi_connector->hdmi);

	hdmi_unreference(hdmi_connector->hdmi);



	kfree(hdmi_connector);

}



static int hdmi_connector_get_modes(struct drm_connector *connector)

{

	struct msm_connector *msm_connector = to_msm_connector(connector);

	struct hdmi_connector *hdmi_connector = to_hdmi_connector(msm_connector);

	struct hdmi *hdmi = &hdmi_connector->hdmi;

	struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);

	struct hdmi *hdmi = hdmi_connector->hdmi;

	struct edid *edid;

	uint32_t hdmi_ctrl;

	int ret = 0;
@@ -291,14 +284,14 @@ static int hdmi_connector_get_modes(struct drm_connector *connector) 
static int hdmi_connector_mode_valid(struct drm_connector *connector,

				 struct drm_display_mode *mode)

{

	struct msm_connector *msm_connector = to_msm_connector(connector);

	struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);

	struct msm_drm_private *priv = connector->dev->dev_private;

	struct msm_kms *kms = priv->kms;

	long actual, requested;



	requested = 1000 * mode->clock;

	actual = kms->funcs->round_pixclk(kms,

			requested, msm_connector->encoder);

			requested, hdmi_connector->hdmi->encoder);



	DBG("requested=%ld, actual=%ld", requested, actual);
@@ -308,6 +301,13 @@ static int hdmi_connector_mode_valid(struct drm_connector *connector, 
	return 0;

}



static struct drm_encoder *

hdmi_connector_best_encoder(struct drm_connector *connector)

{

	struct hdmi_connector *hdmi_connector = to_hdmi_connector(connector);

	return hdmi_connector->hdmi->encoder;

}



static const struct drm_connector_funcs hdmi_connector_funcs = {

	.dpms = drm_helper_connector_dpms,

	.detect = hdmi_connector_detect,
@@ -318,101 +318,11 @@ static const struct drm_connector_funcs hdmi_connector_funcs = { 
static const struct drm_connector_helper_funcs hdmi_connector_helper_funcs = {

	.get_modes = hdmi_connector_get_modes,

	.mode_valid = hdmi_connector_mode_valid,

	.best_encoder = msm_connector_attached_encoder,

};



static void hdmi_connector_dpms(struct msm_connector *msm_connector, int mode)

{

	struct hdmi_connector *hdmi_connector = to_hdmi_connector(msm_connector);

	struct hdmi *hdmi = &hdmi_connector->hdmi;

	struct hdmi_phy *phy = hdmi->phy;

	bool enabled = (mode == DRM_MODE_DPMS_ON);



	DBG("mode=%d", mode);



	if (enabled == hdmi_connector->enabled)

		return;



	if (enabled) {

		phy->funcs->powerup(phy, hdmi_connector->pixclock);

		hdmi_set_mode(hdmi, true);

	} else {

		hdmi_set_mode(hdmi, false);

		phy->funcs->powerdown(phy);

	}



	hdmi_connector->enabled = enabled;

}



static void hdmi_connector_mode_set(struct msm_connector *msm_connector,

		struct drm_display_mode *mode)

{

	struct hdmi_connector *hdmi_connector = to_hdmi_connector(msm_connector);

	struct hdmi *hdmi = &hdmi_connector->hdmi;

	int hstart, hend, vstart, vend;

	uint32_t frame_ctrl;



	hdmi_connector->pixclock = mode->clock * 1000;



	hdmi->hdmi_mode = drm_match_cea_mode(mode) > 1;



	hstart = mode->htotal - mode->hsync_start;

	hend   = mode->htotal - mode->hsync_start + mode->hdisplay;



	vstart = mode->vtotal - mode->vsync_start - 1;

	vend   = mode->vtotal - mode->vsync_start + mode->vdisplay - 1;



	DBG("htotal=%d, vtotal=%d, hstart=%d, hend=%d, vstart=%d, vend=%d",

			mode->htotal, mode->vtotal, hstart, hend, vstart, vend);



	hdmi_write(hdmi, REG_HDMI_TOTAL,

			HDMI_TOTAL_H_TOTAL(mode->htotal - 1) |

			HDMI_TOTAL_V_TOTAL(mode->vtotal - 1));



	hdmi_write(hdmi, REG_HDMI_ACTIVE_HSYNC,

			HDMI_ACTIVE_HSYNC_START(hstart) |

			HDMI_ACTIVE_HSYNC_END(hend));

	hdmi_write(hdmi, REG_HDMI_ACTIVE_VSYNC,

			HDMI_ACTIVE_VSYNC_START(vstart) |

			HDMI_ACTIVE_VSYNC_END(vend));



	if (mode->flags & DRM_MODE_FLAG_INTERLACE) {

		hdmi_write(hdmi, REG_HDMI_VSYNC_TOTAL_F2,

				HDMI_VSYNC_TOTAL_F2_V_TOTAL(mode->vtotal));

		hdmi_write(hdmi, REG_HDMI_VSYNC_ACTIVE_F2,

				HDMI_VSYNC_ACTIVE_F2_START(vstart + 1) |

				HDMI_VSYNC_ACTIVE_F2_END(vend + 1));

	} else {

		hdmi_write(hdmi, REG_HDMI_VSYNC_TOTAL_F2,

				HDMI_VSYNC_TOTAL_F2_V_TOTAL(0));

		hdmi_write(hdmi, REG_HDMI_VSYNC_ACTIVE_F2,

				HDMI_VSYNC_ACTIVE_F2_START(0) |

				HDMI_VSYNC_ACTIVE_F2_END(0));

	}



	frame_ctrl = 0;

	if (mode->flags & DRM_MODE_FLAG_NHSYNC)

		frame_ctrl |= HDMI_FRAME_CTRL_HSYNC_LOW;

	if (mode->flags & DRM_MODE_FLAG_NVSYNC)

		frame_ctrl |= HDMI_FRAME_CTRL_VSYNC_LOW;

	if (mode->flags & DRM_MODE_FLAG_INTERLACE)

		frame_ctrl |= HDMI_FRAME_CTRL_INTERLACED_EN;

	DBG("frame_ctrl=%08x", frame_ctrl);

	hdmi_write(hdmi, REG_HDMI_FRAME_CTRL, frame_ctrl);



	// TODO until we have audio, this might be safest:

	if (hdmi->hdmi_mode)

		hdmi_write(hdmi, REG_HDMI_GC, HDMI_GC_MUTE);

}



static const struct msm_connector_funcs msm_connector_funcs = {

		.dpms = hdmi_connector_dpms,

		.mode_set = hdmi_connector_mode_set,

	.best_encoder = hdmi_connector_best_encoder,

};



/* initialize connector */

struct drm_connector *hdmi_connector_init(struct drm_device *dev,

		struct drm_encoder *encoder)

struct drm_connector *hdmi_connector_init(struct hdmi *hdmi)

{

	struct drm_connector *connector = NULL;

	struct hdmi_connector *hdmi_connector;
@@ -424,11 +334,11 @@ struct drm_connector *hdmi_connector_init(struct drm_device *dev, 
		goto fail;

	}



	connector = &hdmi_connector->base.base;

	hdmi_connector->hdmi = hdmi_reference(hdmi);



	connector = &hdmi_connector->base;



	msm_connector_init(&hdmi_connector->base,

			&msm_connector_funcs, encoder);

	drm_connector_init(dev, connector, &hdmi_connector_funcs,

	drm_connector_init(hdmi->dev, connector, &hdmi_connector_funcs,

			DRM_MODE_CONNECTOR_HDMIA);

	drm_connector_helper_add(connector, &hdmi_connector_helper_funcs);
@@ -439,17 +349,13 @@ struct drm_connector *hdmi_connector_init(struct drm_device *dev, 


	drm_sysfs_connector_add(connector);



	ret = hdmi_init(&hdmi_connector->hdmi, dev, connector);

	if (ret)

		goto fail;



	ret = hpd_enable(hdmi_connector);

	if (ret) {

		dev_err(dev->dev, "failed to enable HPD: %d\n", ret);

		dev_err(hdmi->dev->dev, "failed to enable HPD: %d\n", ret);

		goto fail;

	}



	drm_mode_connector_attach_encoder(connector, encoder);

	drm_mode_connector_attach_encoder(connector, hdmi->encoder);



	return connector;

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