gma500: oops.. thou shalt stg add...

/*

 * Copyright © 2011 Intel Corporation

 *

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

 * under the terms and conditions of the GNU General Public License,

 * version 2, as published by the Free Software Foundation.

 *

 * This program is distributed in the hope 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, write to the Free Software Foundation, Inc., 

 * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

 */

extern const struct drm_crtc_helper_funcs cdv_intel_helper_funcs;

extern const struct drm_crtc_funcs cdv_intel_crtc_funcs;

extern void cdv_intel_crt_init(struct drm_device *dev,

			struct psb_intel_mode_device *mode_dev);

extern void cdv_intel_lvds_init(struct drm_device *dev,

			struct psb_intel_mode_device *mode_dev);

extern void cdv_hdmi_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev,

			int reg);

extern struct drm_display_mode *cdv_intel_crtc_mode_get(struct drm_device *dev,

					     struct drm_crtc *crtc);

extern inline void cdv_intel_wait_for_vblank(struct drm_device *dev)

{

	/* Wait for 20ms, i.e. one cycle at 50hz. */

        /* FIXME: msleep ?? */

	mdelay(20);

}

/*

 * Copyright © 2006-2007 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>

 */

#include <linux/i2c.h>

#include <drm/drmP.h>

#include "intel_bios.h"

#include "psb_drv.h"

#include "psb_intel_drv.h"

#include "psb_intel_reg.h"

#include "power.h"

#include <linux/pm_runtime.h>

static void cdv_intel_crt_dpms(struct drm_encoder *encoder, int mode)

{

	struct drm_device *dev = encoder->dev;

	u32 temp, reg;

	reg = ADPA;

	temp = REG_READ(reg);

	temp &= ~(ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE);

	temp &= ~ADPA_DAC_ENABLE;

	switch(mode) {

	case DRM_MODE_DPMS_ON:

		temp |= ADPA_DAC_ENABLE;

		break;

	case DRM_MODE_DPMS_STANDBY:

		temp |= ADPA_DAC_ENABLE | ADPA_HSYNC_CNTL_DISABLE;

		break;

	case DRM_MODE_DPMS_SUSPEND:

		temp |= ADPA_DAC_ENABLE | ADPA_VSYNC_CNTL_DISABLE;

		break;

	case DRM_MODE_DPMS_OFF:

		temp |= ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE;

		break;

	}

	REG_WRITE(reg, temp);

}

static int cdv_intel_crt_mode_valid(struct drm_connector *connector,

				struct drm_display_mode *mode)

{

	int max_clock = 0;

	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)

		return MODE_NO_DBLESCAN;

	/* The lowest clock for CDV is 20000KHz */

	if (mode->clock < 20000)

		return MODE_CLOCK_LOW;

	/* The max clock for CDV is 355 instead of 400 */

	max_clock = 355000;

	if (mode->clock > max_clock)

		return MODE_CLOCK_HIGH;

	if (mode->hdisplay > 1680 || mode->vdisplay > 1050)

		return MODE_PANEL;

	return MODE_OK;

}

static bool cdv_intel_crt_mode_fixup(struct drm_encoder *encoder,

				 struct drm_display_mode *mode,

				 struct drm_display_mode *adjusted_mode)

{

	return true;

}

static void cdv_intel_crt_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_crtc *crtc = encoder->crtc;

	struct psb_intel_crtc *psb_intel_crtc =

					to_psb_intel_crtc(crtc);

	int dpll_md_reg;

	u32 adpa, dpll_md;

	u32 adpa_reg;

	if (psb_intel_crtc->pipe == 0)

		dpll_md_reg = DPLL_A_MD;

	else

		dpll_md_reg = DPLL_B_MD;

	adpa_reg = ADPA;

	/*

	 * Disable separate mode multiplier used when cloning SDVO to CRT

	 * XXX this needs to be adjusted when we really are cloning

	 */

	{

		dpll_md = REG_READ(dpll_md_reg);

		REG_WRITE(dpll_md_reg,

			   dpll_md & ~DPLL_MD_UDI_MULTIPLIER_MASK);

	}

	adpa = 0;

	if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)

		adpa |= ADPA_HSYNC_ACTIVE_HIGH;

	if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)

		adpa |= ADPA_VSYNC_ACTIVE_HIGH;

	if (psb_intel_crtc->pipe == 0) {

		adpa |= ADPA_PIPE_A_SELECT;

	} else {

		adpa |= ADPA_PIPE_B_SELECT;

	}

	REG_WRITE(adpa_reg, adpa);

}

/**

 * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect CRT presence.

 *

 * \return true if CRT is connected.

 * \return false if CRT is disconnected.

 */

static bool cdv_intel_crt_detect_hotplug(struct drm_connector *connector, bool force)

{

	struct drm_device *dev = connector->dev;

	u32 hotplug_en;

	int i, tries = 0, ret = false;

	u32 adpa_orig;

	/* disable the DAC when doing the hotplug detection */

	adpa_orig = REG_READ(ADPA);

	REG_WRITE(ADPA, adpa_orig & ~(ADPA_DAC_ENABLE));

	/*

	 * On a CDV thep, CRT detect sequence need to be done twice

	 * to get a reliable result.

	 */

	tries = 2;

	hotplug_en = REG_READ(PORT_HOTPLUG_EN);

	hotplug_en &= ~(CRT_HOTPLUG_DETECT_MASK);

	hotplug_en |= CRT_HOTPLUG_FORCE_DETECT;

	hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64;

	hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50;

	for (i = 0; i < tries ; i++) {

		unsigned long timeout;

		/* turn on the FORCE_DETECT */

		REG_WRITE(PORT_HOTPLUG_EN, hotplug_en);

		timeout = jiffies + msecs_to_jiffies(1000);

		/* wait for FORCE_DETECT to go off */

		do {

			if (!(REG_READ(PORT_HOTPLUG_EN) &

					CRT_HOTPLUG_FORCE_DETECT))

				break;

			msleep(1);

		} while (time_after(timeout, jiffies));

	}

	if ((REG_READ(PORT_HOTPLUG_STAT) & CRT_HOTPLUG_MONITOR_MASK) !=

	    CRT_HOTPLUG_MONITOR_NONE)

		ret = true;

	/* Restore the saved ADPA */

	REG_WRITE(ADPA, adpa_orig);

	return ret;

}

static enum drm_connector_status cdv_intel_crt_detect(struct drm_connector *connector, bool force)

{

	if (cdv_intel_crt_detect_hotplug(connector, force))

		return connector_status_connected;

	else

		return connector_status_disconnected;

}

static void cdv_intel_crt_destroy(struct drm_connector *connector)

{

	struct psb_intel_output *intel_output = to_psb_intel_output(connector);

	psb_intel_i2c_destroy(intel_output->ddc_bus);

	drm_sysfs_connector_remove(connector);

	drm_connector_cleanup(connector);

	kfree(connector);

}

static int cdv_intel_crt_get_modes(struct drm_connector *connector)

{

	struct psb_intel_output *intel_output =

				to_psb_intel_output(connector);

	return psb_intel_ddc_get_modes(intel_output);

}

static int cdv_intel_crt_set_property(struct drm_connector *connector,

				  struct drm_property *property,

				  uint64_t value)

{

	return 0;

}

/*

 * Routines for controlling stuff on the analog port

 */

static const struct drm_encoder_helper_funcs cdv_intel_crt_helper_funcs = {

	.dpms = cdv_intel_crt_dpms,

	.mode_fixup = cdv_intel_crt_mode_fixup,

	.prepare = psb_intel_encoder_prepare,

	.commit = psb_intel_encoder_commit,

	.mode_set = cdv_intel_crt_mode_set,

};

static const struct drm_connector_funcs cdv_intel_crt_connector_funcs = {

	.dpms = drm_helper_connector_dpms,

	.detect = cdv_intel_crt_detect,

	.fill_modes = drm_helper_probe_single_connector_modes,

	.destroy = cdv_intel_crt_destroy,

	.set_property = cdv_intel_crt_set_property,

};

static const struct drm_connector_helper_funcs cdv_intel_crt_connector_helper_funcs = {

	.mode_valid = cdv_intel_crt_mode_valid,

	.get_modes = cdv_intel_crt_get_modes,

	.best_encoder = psb_intel_best_encoder,

};

static void cdv_intel_crt_enc_destroy(struct drm_encoder *encoder)

{

	drm_encoder_cleanup(encoder);

}

static const struct drm_encoder_funcs cdv_intel_crt_enc_funcs = {

	.destroy = cdv_intel_crt_enc_destroy,

};

void cdv_intel_crt_init(struct drm_device *dev,

			struct psb_intel_mode_device *mode_dev)

{

	struct psb_intel_output *psb_intel_output;

	struct drm_connector *connector;

	struct drm_encoder *encoder;

	u32 i2c_reg;

	psb_intel_output = kzalloc(sizeof(struct psb_intel_output), GFP_KERNEL);

	if (!psb_intel_output)

		return;

	psb_intel_output->mode_dev = mode_dev;

	connector = &psb_intel_output->base;

	drm_connector_init(dev, connector,

			   &cdv_intel_crt_connector_funcs, DRM_MODE_CONNECTOR_VGA);

	encoder = &psb_intel_output->enc;

	drm_encoder_init(dev, encoder,

				&cdv_intel_crt_enc_funcs, DRM_MODE_ENCODER_DAC);

	drm_mode_connector_attach_encoder(&psb_intel_output->base,

					  &psb_intel_output->enc);

	/* Set up the DDC bus. */

	i2c_reg = GPIOA;

	/* Remove the following code for CDV */

	/*

	if (dev_priv->crt_ddc_bus != 0)

		i2c_reg = dev_priv->crt_ddc_bus;

	}*/

	psb_intel_output->ddc_bus = psb_intel_i2c_create(dev,

						i2c_reg, "CRTDDC_A");

	if (!psb_intel_output->ddc_bus) {

		dev_printk(KERN_ERR, &dev->pdev->dev, "DDC bus registration "

			   "failed.\n");

		goto failed_ddc;

	}

	psb_intel_output->type = INTEL_OUTPUT_ANALOG;

	/*

	psb_intel_output->clone_mask = (1 << INTEL_ANALOG_CLONE_BIT);

	psb_intel_output->crtc_mask = (1 << 0) | (1 << 1);

	*/

	connector->interlace_allowed = 0;

	connector->doublescan_allowed = 0;

	drm_encoder_helper_add(encoder, &cdv_intel_crt_helper_funcs);

	drm_connector_helper_add(connector, &cdv_intel_crt_connector_helper_funcs);

	drm_sysfs_connector_add(connector);

	return;

failed_ddc:

	drm_encoder_cleanup(&psb_intel_output->enc);

	drm_connector_cleanup(&psb_intel_output->base);

	kfree(psb_intel_output);

	return;

}

/*

 * Copyright © 2006-2011 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:

 *	jim liu <jim.liu@intel.com>

 *

 * FIXME:

 *	We should probably make this generic and share it with Medfield

 */

#include <drm/drmP.h>

#include <drm/drm.h>

#include <drm/drm_crtc.h>

#include <drm/drm_edid.h>

#include "psb_intel_drv.h"

#include "psb_drv.h"

#include "psb_intel_reg.h"

#include <linux/pm_runtime.h>

/* hdmi control bits */

#define HDMI_NULL_PACKETS_DURING_VSYNC	(1 << 9)

#define HDMI_BORDER_ENABLE		(1 << 7)

#define HDMI_AUDIO_ENABLE		(1 << 6)

#define HDMI_VSYNC_ACTIVE_HIGH		(1 << 4)

#define HDMI_HSYNC_ACTIVE_HIGH		(1 << 3)

/* hdmi-b control bits */

#define	HDMIB_PIPE_B_SELECT		(1 << 30)

struct mid_intel_hdmi_priv {

	u32 hdmi_reg;

	u32 save_HDMIB;

	bool has_hdmi_sink;

	bool has_hdmi_audio;

	/* Should set this when detect hotplug */

	bool hdmi_device_connected;

	struct mdfld_hdmi_i2c *i2c_bus;

	struct i2c_adapter *hdmi_i2c_adapter;	/* for control functions */

	struct drm_device *dev;

};

static void cdv_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 psb_intel_output *output = enc_to_psb_intel_output(encoder);

	struct mid_intel_hdmi_priv *hdmi_priv = output->dev_priv;

	u32 hdmib;

	struct drm_crtc *crtc = encoder->crtc;

	struct psb_intel_crtc *intel_crtc = to_psb_intel_crtc(crtc);

	hdmib = (2 << 10);

	if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)

		hdmib |= HDMI_VSYNC_ACTIVE_HIGH;

	if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)

		hdmib |= HDMI_HSYNC_ACTIVE_HIGH;

	if (intel_crtc->pipe == 1)

		hdmib |= HDMIB_PIPE_B_SELECT;

	if (hdmi_priv->has_hdmi_audio) {

		hdmib |= HDMI_AUDIO_ENABLE;

		hdmib |= HDMI_NULL_PACKETS_DURING_VSYNC;

	}

	REG_WRITE(hdmi_priv->hdmi_reg, hdmib);

	REG_READ(hdmi_priv->hdmi_reg);

}

static bool cdv_hdmi_mode_fixup(struct drm_encoder *encoder,

				  struct drm_display_mode *mode,

				  struct drm_display_mode *adjusted_mode)

{

       return true;

}

static void cdv_hdmi_dpms(struct drm_encoder *encoder, int mode)

{

	struct drm_device *dev = encoder->dev;

	struct psb_intel_output *output = enc_to_psb_intel_output(encoder);

	struct mid_intel_hdmi_priv *hdmi_priv = output->dev_priv;

	u32 hdmib;

	hdmib = REG_READ(hdmi_priv->hdmi_reg);

	if (mode != DRM_MODE_DPMS_ON) {

		REG_WRITE(hdmi_priv->hdmi_reg, hdmib & ~HDMIB_PORT_EN);

	} else {

		REG_WRITE(hdmi_priv->hdmi_reg, hdmib | HDMIB_PORT_EN);

	}

	REG_READ(hdmi_priv->hdmi_reg);

}

static void cdv_hdmi_save(struct drm_connector *connector)

{

	struct drm_device *dev = connector->dev;

	struct psb_intel_output *output = to_psb_intel_output(connector);

	struct mid_intel_hdmi_priv *hdmi_priv = output->dev_priv;

	hdmi_priv->save_HDMIB = REG_READ(hdmi_priv->hdmi_reg);

}

static void cdv_hdmi_restore(struct drm_connector *connector)

{

	struct drm_device *dev = connector->dev;

	struct psb_intel_output *output = to_psb_intel_output(connector);

	struct mid_intel_hdmi_priv *hdmi_priv = output->dev_priv;

	REG_WRITE(hdmi_priv->hdmi_reg, hdmi_priv->save_HDMIB);

	REG_READ(hdmi_priv->hdmi_reg);

}

static enum drm_connector_status cdv_hdmi_detect(struct drm_connector *connector, bool force)

{

	struct drm_device *dev = connector->dev;

	struct drm_psb_private *dev_priv = dev->dev_private;

	struct psb_intel_output *psb_intel_output = to_psb_intel_output(connector);

	struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_output->dev_priv;

	struct edid *edid = NULL;

	enum drm_connector_status status = connector_status_disconnected;

	edid = drm_get_edid(&psb_intel_output->base,

			 psb_intel_output->hdmi_i2c_adapter);

	hdmi_priv->has_hdmi_sink = false;

	hdmi_priv->has_hdmi_audio = false;

	if (edid) {

		if (edid->input & DRM_EDID_INPUT_DIGITAL) {

			status = connector_status_connected;

			hdmi_priv->has_hdmi_sink = drm_detect_hdmi_monitor(edid);

			hdmi_priv->has_hdmi_audio = drm_detect_monitor_audio(edid);

		}

		psb_intel_output->base.display_info.raw_edid = NULL;

		kfree(edid);

	}

	return status;

}

static int cdv_hdmi_set_property(struct drm_connector *connector,

				       struct drm_property *property,

				       uint64_t value)

{

	struct drm_encoder *encoder = connector->encoder;

	if (!strcmp(property->name, "scaling mode") && encoder) {

		struct psb_intel_crtc *crtc = to_psb_intel_crtc(encoder->crtc);

		bool centre;

		uint64_t curValue;

		if (!crtc)

		        return -1;

		switch (value) {

		case DRM_MODE_SCALE_FULLSCREEN:

			break;

		case DRM_MODE_SCALE_NO_SCALE:

			break;

		case DRM_MODE_SCALE_ASPECT:

			break;

		default:

		        return -1;

		}

		if (drm_connector_property_get_value(connector, property, &curValue))

		        return -1;

		if (curValue == value)

		        return 0;

		if (drm_connector_property_set_value(connector, property, value))

		        return -1;

		centre = (curValue == DRM_MODE_SCALE_NO_SCALE) ||

			(value == DRM_MODE_SCALE_NO_SCALE);

		if (crtc->saved_mode.hdisplay != 0 &&

		    crtc->saved_mode.vdisplay != 0) {

			if (centre) {

				if (!drm_crtc_helper_set_mode(encoder->crtc, &crtc->saved_mode,

					    encoder->crtc->x, encoder->crtc->y, encoder->crtc->fb))

					return -1;

			} else {

				struct drm_encoder_helper_funcs *helpers  = encoder->helper_private;

				helpers->mode_set(encoder, &crtc->saved_mode,

						     &crtc->saved_adjusted_mode);

			}

		}

	}

	return 0;

}

/*

 * Return the list of HDMI DDC modes if available.

 */

static int cdv_hdmi_get_modes(struct drm_connector *connector)

{

	struct psb_intel_output *psb_intel_output = to_psb_intel_output(connector);

	struct edid *edid = NULL;

	int ret = 0;

	edid = drm_get_edid(&psb_intel_output->base,

			 psb_intel_output->hdmi_i2c_adapter);

	if (edid) {

		drm_mode_connector_update_edid_property(&psb_intel_output->

							base, edid);

		ret = drm_add_edid_modes(&psb_intel_output->base, edid);

		kfree(edid);

	}

	return ret;

}

static int cdv_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;

	/* just in case */

	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)

		return MODE_NO_DBLESCAN;

	/* just in case */

	if (mode->flags & DRM_MODE_FLAG_INTERLACE)

		return MODE_NO_INTERLACE;

	/*

	 * FIXME: fornow we limit the size to 1680x1050 on CDV, otherwise it will

	 * go beyond the stolen memory size allocated to the Framebuffer

	 */

	if (mode->hdisplay > 1680)

		return MODE_PANEL;

	if (mode->vdisplay > 1050)

		return MODE_PANEL;

	return MODE_OK;

}

static void cdv_hdmi_destroy(struct drm_connector *connector)

{

	struct psb_intel_output *psb_intel_output =

					to_psb_intel_output(connector);

	if (psb_intel_output->ddc_bus)

		psb_intel_i2c_destroy(psb_intel_output->ddc_bus);

	drm_sysfs_connector_remove(connector);

	drm_connector_cleanup(connector);

	kfree(connector);

}

static const struct drm_encoder_helper_funcs cdv_hdmi_helper_funcs = {

	.dpms = cdv_hdmi_dpms,

	.mode_fixup = cdv_hdmi_mode_fixup,

	.prepare = psb_intel_encoder_prepare,

	.mode_set = cdv_hdmi_mode_set,

	.commit = psb_intel_encoder_commit,

};

static const struct drm_connector_helper_funcs cdv_hdmi_connector_helper_funcs = {

	.get_modes = cdv_hdmi_get_modes,

	.mode_valid = cdv_hdmi_mode_valid,

	.best_encoder = psb_intel_best_encoder,

};

static const struct drm_connector_funcs cdv_hdmi_connector_funcs = {

	.dpms = drm_helper_connector_dpms,

	.save = cdv_hdmi_save,

	.restore = cdv_hdmi_restore,

	.detect = cdv_hdmi_detect,

	.fill_modes = drm_helper_probe_single_connector_modes,

	.set_property = cdv_hdmi_set_property,

	.destroy = cdv_hdmi_destroy,

};

void cdv_hdmi_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev, int reg)

{

	struct psb_intel_output *psb_intel_output;

	struct drm_connector *connector;

	struct drm_encoder *encoder;

	struct mid_intel_hdmi_priv *hdmi_priv;

	int ddc_bus;

	psb_intel_output = kzalloc(sizeof(struct psb_intel_output) +

			       sizeof(struct mid_intel_hdmi_priv), GFP_KERNEL);

	if (!psb_intel_output)

		return;

	hdmi_priv = (struct mid_intel_hdmi_priv *)(psb_intel_output + 1);

	psb_intel_output->mode_dev = mode_dev;

	connector = &psb_intel_output->base;

	encoder = &psb_intel_output->enc;

	drm_connector_init(dev, &psb_intel_output->base,

			   &cdv_hdmi_connector_funcs,

			   DRM_MODE_CONNECTOR_DVID);

	drm_encoder_init(dev, &psb_intel_output->enc, &psb_intel_lvds_enc_funcs,

			 DRM_MODE_ENCODER_TMDS);

	drm_mode_connector_attach_encoder(&psb_intel_output->base,

					  &psb_intel_output->enc);

	psb_intel_output->type = INTEL_OUTPUT_HDMI;

	hdmi_priv->hdmi_reg = reg;

	hdmi_priv->has_hdmi_sink = false;

	psb_intel_output->dev_priv = hdmi_priv;

	drm_encoder_helper_add(encoder, &cdv_hdmi_helper_funcs);

	drm_connector_helper_add(connector,

				 &cdv_hdmi_connector_helper_funcs);

	connector->display_info.subpixel_order = SubPixelHorizontalRGB;

	connector->interlace_allowed = false;

	connector->doublescan_allowed = false;

	drm_connector_attach_property(connector, dev->mode_config.scaling_mode_property, DRM_MODE_SCALE_FULLSCREEN);

	switch (reg) {

	case SDVOB:

		ddc_bus = GPIOE;

		break;

	case SDVOC:

		ddc_bus = GPIOD;

		break;

	default:

		DRM_ERROR("unknown reg 0x%x for HDMI\n", reg);

		goto failed_ddc;

		break;

	}

	psb_intel_output->ddc_bus = psb_intel_i2c_create(dev,

						ddc_bus, (reg == SDVOB) ? "HDMIB":"HDMIC");

	if (psb_intel_output->ddc_bus) {

     		/* HACKS_JLIU7 */

		DRM_INFO("Enter cdv_hdmi_init, i2c_adapter is availabe.\n");

	} else {

		printk(KERN_ALERT "No ddc adapter available!\n");

		goto failed_ddc;

	}

	psb_intel_output->hdmi_i2c_adapter = &(psb_intel_output->ddc_bus->adapter);

	hdmi_priv->dev = dev; 

	drm_sysfs_connector_add(connector);

	return;

failed_ddc:

	drm_encoder_cleanup(&psb_intel_output->enc);

	drm_connector_cleanup(&psb_intel_output->base);

	kfree(psb_intel_output);

}