[deliverable/linux.git] / drivers / gpu / drm / gma500 / cdv_intel_hdmi.c

/*
 * 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 "cdv_device.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 gma_encoder *gma_encoder = to_gma_encoder(encoder);
	struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
	u32 hdmib;
	struct drm_crtc *crtc = encoder->crtc;
	struct gma_crtc *gma_crtc = to_gma_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 (gma_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 void cdv_hdmi_dpms(struct drm_encoder *encoder, int mode)
{
	struct drm_device *dev = encoder->dev;
	struct gma_encoder *gma_encoder = to_gma_encoder(encoder);
	struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->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 gma_encoder *gma_encoder = gma_attached_encoder(connector);
	struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->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 gma_encoder *gma_encoder = gma_attached_encoder(connector);
	struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->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 gma_encoder *gma_encoder = gma_attached_encoder(connector);
	struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
	struct edid *edid = NULL;
	enum drm_connector_status status = connector_status_disconnected;

	edid = drm_get_edid(connector, &gma_encoder->i2c_bus->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);
		}
		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 gma_crtc *crtc = to_gma_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_object_property_get_value(&connector->base,
							property, &curValue))
			return -1;

		if (curValue == value)
			return 0;

		if (drm_object_property_set_value(&connector->base,
							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->primary->fb))
					return -1;
			} else {
				const 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 gma_encoder *gma_encoder = gma_attached_encoder(connector);
	struct edid *edid = NULL;
	int ret = 0;

	edid = drm_get_edid(connector, &gma_encoder->i2c_bus->adapter);
	if (edid) {
		drm_mode_connector_update_edid_property(connector, edid);
		ret = drm_add_edid_modes(connector, 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;

	return MODE_OK;
}

static void cdv_hdmi_destroy(struct drm_connector *connector)
{
	struct gma_encoder *gma_encoder = gma_attached_encoder(connector);

	if (gma_encoder->i2c_bus)
		psb_intel_i2c_destroy(gma_encoder->i2c_bus);
	drm_connector_unregister(connector);
	drm_connector_cleanup(connector);
	kfree(connector);
}

static const struct drm_encoder_helper_funcs cdv_hdmi_helper_funcs = {
	.dpms = cdv_hdmi_dpms,
	.mode_fixup = gma_encoder_mode_fixup,
	.prepare = gma_encoder_prepare,
	.mode_set = cdv_hdmi_mode_set,
	.commit = gma_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 = gma_best_encoder,
};

static const struct drm_connector_funcs cdv_hdmi_connector_funcs = {
	.dpms = drm_helper_connector_dpms,
	.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 gma_encoder *gma_encoder;
	struct gma_connector *gma_connector;
	struct drm_connector *connector;
	struct drm_encoder *encoder;
	struct mid_intel_hdmi_priv *hdmi_priv;
	int ddc_bus;

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

	if (!gma_encoder)
		return;

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

	if (!gma_connector)
		goto err_connector;

	hdmi_priv = kzalloc(sizeof(struct mid_intel_hdmi_priv), GFP_KERNEL);

	if (!hdmi_priv)
		goto err_priv;

	connector = &gma_connector->base;
	connector->polled = DRM_CONNECTOR_POLL_HPD;
	gma_connector->save = cdv_hdmi_save;
	gma_connector->restore = cdv_hdmi_restore;

	encoder = &gma_encoder->base;
	drm_connector_init(dev, connector,
			   &cdv_hdmi_connector_funcs,
			   DRM_MODE_CONNECTOR_DVID);

	drm_encoder_init(dev, encoder, &psb_intel_lvds_enc_funcs,
			 DRM_MODE_ENCODER_TMDS, NULL);

	gma_connector_attach_encoder(gma_connector, gma_encoder);
	gma_encoder->type = INTEL_OUTPUT_HDMI;
	hdmi_priv->hdmi_reg = reg;
	hdmi_priv->has_hdmi_sink = false;
	gma_encoder->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_object_attach_property(&connector->base,
				      dev->mode_config.scaling_mode_property,
				      DRM_MODE_SCALE_FULLSCREEN);

	switch (reg) {
	case SDVOB:
		ddc_bus = GPIOE;
		gma_encoder->ddi_select = DDI0_SELECT;
		break;
	case SDVOC:
		ddc_bus = GPIOD;
		gma_encoder->ddi_select = DDI1_SELECT;
		break;
	default:
		DRM_ERROR("unknown reg 0x%x for HDMI\n", reg);
		goto failed_ddc;
		break;
	}

	gma_encoder->i2c_bus = psb_intel_i2c_create(dev,
				ddc_bus, (reg == SDVOB) ? "HDMIB" : "HDMIC");

	if (!gma_encoder->i2c_bus) {
		dev_err(dev->dev, "No ddc adapter available!\n");
		goto failed_ddc;
	}

	hdmi_priv->hdmi_i2c_adapter = &(gma_encoder->i2c_bus->adapter);
	hdmi_priv->dev = dev;
	drm_connector_register(connector);
	return;

failed_ddc:
	drm_encoder_cleanup(encoder);
	drm_connector_cleanup(connector);
err_priv:
	kfree(gma_connector);
err_connector:
	kfree(gma_encoder);
}
Commit	Line	Data
6a227d5f AC	1	/*
	2	* Copyright © 2006-2011 Intel Corporation
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice (including the next
	12	* paragraph) shall be included in all copies or substantial portions of the
	13	* Software.
	14	*
	15	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	16	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	18	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	19	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	20	* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	21	* DEALINGS IN THE SOFTWARE.
	22	*
	23	* Authors:
	24	* jim liu <jim.liu@intel.com>
	25	*
	26	* FIXME:
	27	* We should probably make this generic and share it with Medfield
	28	*/
	29
	30	#include <drm/drmP.h>
	31	#include <drm/drm.h>
	32	#include <drm/drm_crtc.h>
	33	#include <drm/drm_edid.h>
	34	#include "psb_intel_drv.h"
	35	#include "psb_drv.h"
	36	#include "psb_intel_reg.h"
455b9e91	37	#include "cdv_device.h"
6a227d5f AC	38	#include <linux/pm_runtime.h>
	39
	40	/* hdmi control bits */
	41	#define HDMI_NULL_PACKETS_DURING_VSYNC (1 << 9)
	42	#define HDMI_BORDER_ENABLE (1 << 7)
	43	#define HDMI_AUDIO_ENABLE (1 << 6)
	44	#define HDMI_VSYNC_ACTIVE_HIGH (1 << 4)
	45	#define HDMI_HSYNC_ACTIVE_HIGH (1 << 3)
	46	/* hdmi-b control bits */
	47	#define HDMIB_PIPE_B_SELECT (1 << 30)
	48
	49
	50	struct mid_intel_hdmi_priv {
	51	u32 hdmi_reg;
	52	u32 save_HDMIB;
	53	bool has_hdmi_sink;
	54	bool has_hdmi_audio;
	55	/* Should set this when detect hotplug */
	56	bool hdmi_device_connected;
	57	struct mdfld_hdmi_i2c *i2c_bus;
	58	struct i2c_adapter hdmi_i2c_adapter; / for control functions */
	59	struct drm_device *dev;
	60	};
	61
	62	static void cdv_hdmi_mode_set(struct drm_encoder *encoder,
	63	struct drm_display_mode *mode,
	64	struct drm_display_mode *adjusted_mode)
	65	{
	66	struct drm_device *dev = encoder->dev;
367e4408 PJ	67	struct gma_encoder *gma_encoder = to_gma_encoder(encoder);
367e4408 PJ	68	struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
6a227d5f AC	69	u32 hdmib;
6a227d5f AC	70	struct drm_crtc *crtc = encoder->crtc;
6306865d	71	struct gma_crtc *gma_crtc = to_gma_crtc(crtc);
6a227d5f AC	72
	73	hdmib = (2 << 10);
	74
	75	if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
	76	hdmib \|= HDMI_VSYNC_ACTIVE_HIGH;
	77	if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
	78	hdmib \|= HDMI_HSYNC_ACTIVE_HIGH;
	79
6306865d	80	if (gma_crtc->pipe == 1)
6a227d5f AC	81	hdmib \|= HDMIB_PIPE_B_SELECT;
	82
	83	if (hdmi_priv->has_hdmi_audio) {
	84	hdmib \|= HDMI_AUDIO_ENABLE;
	85	hdmib \|= HDMI_NULL_PACKETS_DURING_VSYNC;
	86	}
	87
	88	REG_WRITE(hdmi_priv->hdmi_reg, hdmib);
	89	REG_READ(hdmi_priv->hdmi_reg);
	90	}
	91
6a227d5f AC	92	static void cdv_hdmi_dpms(struct drm_encoder *encoder, int mode)
	93	{
	94	struct drm_device *dev = encoder->dev;
367e4408 PJ	95	struct gma_encoder *gma_encoder = to_gma_encoder(encoder);
367e4408 PJ	96	struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
6a227d5f AC	97	u32 hdmib;
	98
	99	hdmib = REG_READ(hdmi_priv->hdmi_reg);
	100
	101	if (mode != DRM_MODE_DPMS_ON)
	102	REG_WRITE(hdmi_priv->hdmi_reg, hdmib & ~HDMIB_PORT_EN);
	103	else
	104	REG_WRITE(hdmi_priv->hdmi_reg, hdmib \| HDMIB_PORT_EN);
	105	REG_READ(hdmi_priv->hdmi_reg);
	106	}
	107
	108	static void cdv_hdmi_save(struct drm_connector *connector)
	109	{
	110	struct drm_device *dev = connector->dev;
367e4408 PJ	111	struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
367e4408 PJ	112	struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
6a227d5f AC	113
	114	hdmi_priv->save_HDMIB = REG_READ(hdmi_priv->hdmi_reg);
	115	}
	116
	117	static void cdv_hdmi_restore(struct drm_connector *connector)
	118	{
	119	struct drm_device *dev = connector->dev;
367e4408 PJ	120	struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
367e4408 PJ	121	struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
6a227d5f AC	122
	123	REG_WRITE(hdmi_priv->hdmi_reg, hdmi_priv->save_HDMIB);
	124	REG_READ(hdmi_priv->hdmi_reg);
	125	}
	126
	127	static enum drm_connector_status cdv_hdmi_detect(
	128	struct drm_connector *connector, bool force)
	129	{
367e4408 PJ	130	struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
367e4408 PJ	131	struct mid_intel_hdmi_priv *hdmi_priv = gma_encoder->dev_priv;
6a227d5f AC	132	struct edid *edid = NULL;
	133	enum drm_connector_status status = connector_status_disconnected;
	134
367e4408	135	edid = drm_get_edid(connector, &gma_encoder->i2c_bus->adapter);
6a227d5f AC	136
	137	hdmi_priv->has_hdmi_sink = false;
	138	hdmi_priv->has_hdmi_audio = false;
	139	if (edid) {
	140	if (edid->input & DRM_EDID_INPUT_DIGITAL) {
	141	status = connector_status_connected;
	142	hdmi_priv->has_hdmi_sink =
	143	drm_detect_hdmi_monitor(edid);
	144	hdmi_priv->has_hdmi_audio =
	145	drm_detect_monitor_audio(edid);
	146	}
6a227d5f AC	147	kfree(edid);
	148	}
	149	return status;
	150	}
	151
	152	static int cdv_hdmi_set_property(struct drm_connector *connector,
	153	struct drm_property *property,
	154	uint64_t value)
	155	{
	156	struct drm_encoder *encoder = connector->encoder;
	157
	158	if (!strcmp(property->name, "scaling mode") && encoder) {
6306865d	159	struct gma_crtc *crtc = to_gma_crtc(encoder->crtc);
6a227d5f AC	160	bool centre;
	161	uint64_t curValue;
	162
	163	if (!crtc)
	164	return -1;
	165
	166	switch (value) {
	167	case DRM_MODE_SCALE_FULLSCREEN:
	168	break;
	169	case DRM_MODE_SCALE_NO_SCALE:
	170	break;
	171	case DRM_MODE_SCALE_ASPECT:
	172	break;
	173	default:
	174	return -1;
	175	}
	176
a69ac9ea	177	if (drm_object_property_get_value(&connector->base,
6a227d5f AC	178	property, &curValue))
	179	return -1;
	180
	181	if (curValue == value)
	182	return 0;
	183
a69ac9ea	184	if (drm_object_property_set_value(&connector->base,
6a227d5f AC	185	property, value))
	186	return -1;
	187
	188	centre = (curValue == DRM_MODE_SCALE_NO_SCALE) \|\|
	189	(value == DRM_MODE_SCALE_NO_SCALE);
	190
	191	if (crtc->saved_mode.hdisplay != 0 &&
	192	crtc->saved_mode.vdisplay != 0) {
	193	if (centre) {
	194	if (!drm_crtc_helper_set_mode(encoder->crtc, &crtc->saved_mode,
f4510a27	195	encoder->crtc->x, encoder->crtc->y, encoder->crtc->primary->fb))
6a227d5f AC	196	return -1;
6a227d5f AC	197	} else {
45fe734c	198	const struct drm_encoder_helper_funcs *helpers
6a227d5f AC	199	= encoder->helper_private;
	200	helpers->mode_set(encoder, &crtc->saved_mode,
	201	&crtc->saved_adjusted_mode);
	202	}
	203	}
	204	}
	205	return 0;
	206	}
	207
	208	/*
	209	* Return the list of HDMI DDC modes if available.
	210	*/
	211	static int cdv_hdmi_get_modes(struct drm_connector *connector)
	212	{
367e4408	213	struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
6a227d5f AC	214	struct edid *edid = NULL;
	215	int ret = 0;
	216
367e4408	217	edid = drm_get_edid(connector, &gma_encoder->i2c_bus->adapter);
6a227d5f	218	if (edid) {
a12d6a07 PJ	219	drm_mode_connector_update_edid_property(connector, edid);
a12d6a07 PJ	220	ret = drm_add_edid_modes(connector, edid);
6a227d5f AC	221	kfree(edid);
	222	}
	223	return ret;
	224	}
	225
	226	static int cdv_hdmi_mode_valid(struct drm_connector *connector,
	227	struct drm_display_mode *mode)
	228	{
6a227d5f AC	229	if (mode->clock > 165000)
	230	return MODE_CLOCK_HIGH;
	231	if (mode->clock < 20000)
	232	return MODE_CLOCK_HIGH;
	233
	234	/* just in case */
	235	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
	236	return MODE_NO_DBLESCAN;
	237
	238	/* just in case */
	239	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
	240	return MODE_NO_INTERLACE;
	241
6a227d5f AC	242	return MODE_OK;
	243	}
	244
	245	static void cdv_hdmi_destroy(struct drm_connector *connector)
	246	{
367e4408	247	struct gma_encoder *gma_encoder = gma_attached_encoder(connector);
6a227d5f	248
367e4408 PJ	249	if (gma_encoder->i2c_bus)
367e4408 PJ	250	psb_intel_i2c_destroy(gma_encoder->i2c_bus);
34ea3d38	251	drm_connector_unregister(connector);
6a227d5f AC	252	drm_connector_cleanup(connector);
	253	kfree(connector);
	254	}
	255
	256	static const struct drm_encoder_helper_funcs cdv_hdmi_helper_funcs = {
	257	.dpms = cdv_hdmi_dpms,
19519943	258	.mode_fixup = gma_encoder_mode_fixup,
c9d49590	259	.prepare = gma_encoder_prepare,
6a227d5f	260	.mode_set = cdv_hdmi_mode_set,
c9d49590	261	.commit = gma_encoder_commit,
6a227d5f AC	262	};
	263
	264	static const struct drm_connector_helper_funcs
	265	cdv_hdmi_connector_helper_funcs = {
	266	.get_modes = cdv_hdmi_get_modes,
	267	.mode_valid = cdv_hdmi_mode_valid,
c9d49590	268	.best_encoder = gma_best_encoder,
6a227d5f AC	269	};
	270
	271	static const struct drm_connector_funcs cdv_hdmi_connector_funcs = {
	272	.dpms = drm_helper_connector_dpms,
6a227d5f AC	273	.detect = cdv_hdmi_detect,
	274	.fill_modes = drm_helper_probe_single_connector_modes,
	275	.set_property = cdv_hdmi_set_property,
	276	.destroy = cdv_hdmi_destroy,
	277	};
	278
	279	void cdv_hdmi_init(struct drm_device *dev,
	280	struct psb_intel_mode_device *mode_dev, int reg)
	281	{
367e4408	282	struct gma_encoder *gma_encoder;
a3d5d75f	283	struct gma_connector *gma_connector;
6a227d5f AC	284	struct drm_connector *connector;
	285	struct drm_encoder *encoder;
	286	struct mid_intel_hdmi_priv *hdmi_priv;
	287	int ddc_bus;
	288
367e4408	289	gma_encoder = kzalloc(sizeof(struct gma_encoder), GFP_KERNEL);
a12d6a07	290
367e4408	291	if (!gma_encoder)
6a227d5f AC	292	return;
6a227d5f AC	293
a3d5d75f	294	gma_connector = kzalloc(sizeof(struct gma_connector),
a12d6a07 PJ	295	GFP_KERNEL);
a12d6a07 PJ	296
a3d5d75f	297	if (!gma_connector)
a12d6a07 PJ	298	goto err_connector;
	299
	300	hdmi_priv = kzalloc(sizeof(struct mid_intel_hdmi_priv), GFP_KERNEL);
	301
	302	if (!hdmi_priv)
	303	goto err_priv;
	304
a3d5d75f	305	connector = &gma_connector->base;
bda50031	306	connector->polled = DRM_CONNECTOR_POLL_HPD;
d56f57ac DV	307	gma_connector->save = cdv_hdmi_save;
	308	gma_connector->restore = cdv_hdmi_restore;
	309
367e4408	310	encoder = &gma_encoder->base;
a12d6a07	311	drm_connector_init(dev, connector,
6a227d5f AC	312	&cdv_hdmi_connector_funcs,
	313	DRM_MODE_CONNECTOR_DVID);
	314
a12d6a07	315	drm_encoder_init(dev, encoder, &psb_intel_lvds_enc_funcs,
13a3d91f	316	DRM_MODE_ENCODER_TMDS, NULL);
6a227d5f	317
367e4408 PJ	318	gma_connector_attach_encoder(gma_connector, gma_encoder);
367e4408 PJ	319	gma_encoder->type = INTEL_OUTPUT_HDMI;
6a227d5f AC	320	hdmi_priv->hdmi_reg = reg;
6a227d5f AC	321	hdmi_priv->has_hdmi_sink = false;
367e4408	322	gma_encoder->dev_priv = hdmi_priv;
6a227d5f AC	323
	324	drm_encoder_helper_add(encoder, &cdv_hdmi_helper_funcs);
	325	drm_connector_helper_add(connector,
	326	&cdv_hdmi_connector_helper_funcs);
	327	connector->display_info.subpixel_order = SubPixelHorizontalRGB;
	328	connector->interlace_allowed = false;
	329	connector->doublescan_allowed = false;
	330
a69ac9ea	331	drm_object_attach_property(&connector->base,
a12d6a07 PJ	332	dev->mode_config.scaling_mode_property,
a12d6a07 PJ	333	DRM_MODE_SCALE_FULLSCREEN);
6a227d5f AC	334
	335	switch (reg) {
	336	case SDVOB:
	337	ddc_bus = GPIOE;
367e4408	338	gma_encoder->ddi_select = DDI0_SELECT;
6a227d5f AC	339	break;
	340	case SDVOC:
	341	ddc_bus = GPIOD;
367e4408	342	gma_encoder->ddi_select = DDI1_SELECT;
6a227d5f AC	343	break;
	344	default:
	345	DRM_ERROR("unknown reg 0x%x for HDMI\n", reg);
	346	goto failed_ddc;
	347	break;
	348	}
	349
367e4408	350	gma_encoder->i2c_bus = psb_intel_i2c_create(dev,
6a227d5f AC	351	ddc_bus, (reg == SDVOB) ? "HDMIB" : "HDMIC");
6a227d5f AC	352
367e4408	353	if (!gma_encoder->i2c_bus) {
6a227d5f AC	354	dev_err(dev->dev, "No ddc adapter available!\n");
	355	goto failed_ddc;
	356	}
a12d6a07	357
367e4408	358	hdmi_priv->hdmi_i2c_adapter = &(gma_encoder->i2c_bus->adapter);
6a227d5f	359	hdmi_priv->dev = dev;
34ea3d38	360	drm_connector_register(connector);
6a227d5f AC	361	return;
	362
	363	failed_ddc:
a12d6a07 PJ	364	drm_encoder_cleanup(encoder);
	365	drm_connector_cleanup(connector);
	366	err_priv:
a3d5d75f	367	kfree(gma_connector);
a12d6a07	368	err_connector:
367e4408	369	kfree(gma_encoder);
6a227d5f	370	}