[mirror_ubuntu-bionic-kernel.git] / drivers / gpu / drm / omapdrm / omap_connector.c

/*
 * drivers/gpu/drm/omapdrm/omap_connector.c
 *
 * Copyright (C) 2011 Texas Instruments
 * Author: Rob Clark <rob@ti.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 <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_crtc_helper.h>

#include "omap_drv.h"

/*
 * connector funcs
 */

#define to_omap_connector(x) container_of(x, struct omap_connector, base)

struct omap_connector {
	struct drm_connector base;
	struct omap_dss_device *dssdev;
	bool hdmi_mode;
};

bool omap_connector_get_hdmi_mode(struct drm_connector *connector)
{
	struct omap_connector *omap_connector = to_omap_connector(connector);

	return omap_connector->hdmi_mode;
}

void copy_timings_omap_to_drm(struct drm_display_mode *mode,
		struct omap_video_timings *timings)
{
	mode->clock = timings->pixelclock / 1000;

	mode->hdisplay = timings->hactive;
	mode->hsync_start = mode->hdisplay + timings->hfront_porch;
	mode->hsync_end = mode->hsync_start + timings->hsync_len;
	mode->htotal = mode->hsync_end + timings->hback_porch;

	mode->vdisplay = timings->vactive;
	mode->vsync_start = mode->vdisplay + timings->vfront_porch;
	mode->vsync_end = mode->vsync_start + timings->vsync_len;
	mode->vtotal = mode->vsync_end + timings->vback_porch;

	mode->flags = 0;

	if (timings->flags & DISPLAY_FLAGS_INTERLACED)
		mode->flags |= DRM_MODE_FLAG_INTERLACE;

	if (timings->flags & DISPLAY_FLAGS_DOUBLECLK)
		mode->flags |= DRM_MODE_FLAG_DBLCLK;

	if (timings->flags & DISPLAY_FLAGS_HSYNC_HIGH)
		mode->flags |= DRM_MODE_FLAG_PHSYNC;
	else
		mode->flags |= DRM_MODE_FLAG_NHSYNC;

	if (timings->flags & DISPLAY_FLAGS_VSYNC_HIGH)
		mode->flags |= DRM_MODE_FLAG_PVSYNC;
	else
		mode->flags |= DRM_MODE_FLAG_NVSYNC;
}

void copy_timings_drm_to_omap(struct omap_video_timings *timings,
		struct drm_display_mode *mode)
{
	timings->pixelclock = mode->clock * 1000;

	timings->hactive = mode->hdisplay;
	timings->hfront_porch = mode->hsync_start - mode->hdisplay;
	timings->hsync_len = mode->hsync_end - mode->hsync_start;
	timings->hback_porch = mode->htotal - mode->hsync_end;

	timings->vactive = mode->vdisplay;
	timings->vfront_porch = mode->vsync_start - mode->vdisplay;
	timings->vsync_len = mode->vsync_end - mode->vsync_start;
	timings->vback_porch = mode->vtotal - mode->vsync_end;

	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
		timings->flags |= DISPLAY_FLAGS_INTERLACED;

	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
		timings->flags |= DISPLAY_FLAGS_DOUBLECLK;

	if (mode->flags & DRM_MODE_FLAG_PHSYNC)
		timings->flags |= DISPLAY_FLAGS_HSYNC_HIGH;
	else
		timings->flags |= DISPLAY_FLAGS_HSYNC_LOW;

	if (mode->flags & DRM_MODE_FLAG_PVSYNC)
		timings->flags |= DISPLAY_FLAGS_VSYNC_HIGH;
	else
		timings->flags |= DISPLAY_FLAGS_VSYNC_LOW;

	timings->flags |= DISPLAY_FLAGS_DE_HIGH | DISPLAY_FLAGS_PIXDATA_POSEDGE;
	timings->sync_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE;
}

static enum drm_connector_status omap_connector_detect(
		struct drm_connector *connector, bool force)
{
	struct omap_connector *omap_connector = to_omap_connector(connector);
	struct omap_dss_device *dssdev = omap_connector->dssdev;
	struct omap_dss_driver *dssdrv = dssdev->driver;
	enum drm_connector_status ret;

	if (dssdrv->detect) {
		if (dssdrv->detect(dssdev))
			ret = connector_status_connected;
		else
			ret = connector_status_disconnected;
	} else if (dssdev->type == OMAP_DISPLAY_TYPE_DPI ||
			dssdev->type == OMAP_DISPLAY_TYPE_DBI ||
			dssdev->type == OMAP_DISPLAY_TYPE_SDI ||
			dssdev->type == OMAP_DISPLAY_TYPE_DSI) {
		ret = connector_status_connected;
	} else {
		ret = connector_status_unknown;
	}

	VERB("%s: %d (force=%d)", omap_connector->dssdev->name, ret, force);

	return ret;
}

static void omap_connector_destroy(struct drm_connector *connector)
{
	struct omap_connector *omap_connector = to_omap_connector(connector);
	struct omap_dss_device *dssdev = omap_connector->dssdev;

	DBG("%s", omap_connector->dssdev->name);
	drm_connector_unregister(connector);
	drm_connector_cleanup(connector);
	kfree(omap_connector);

	omap_dss_put_device(dssdev);
}

#define MAX_EDID  512

static int omap_connector_get_modes(struct drm_connector *connector)
{
	struct omap_connector *omap_connector = to_omap_connector(connector);
	struct omap_dss_device *dssdev = omap_connector->dssdev;
	struct omap_dss_driver *dssdrv = dssdev->driver;
	struct drm_device *dev = connector->dev;
	int n = 0;

	DBG("%s", omap_connector->dssdev->name);

	/* if display exposes EDID, then we parse that in the normal way to
	 * build table of supported modes.. otherwise (ie. fixed resolution
	 * LCD panels) we just return a single mode corresponding to the
	 * currently configured timings:
	 */
	if (dssdrv->read_edid) {
		void *edid = kzalloc(MAX_EDID, GFP_KERNEL);

		if ((dssdrv->read_edid(dssdev, edid, MAX_EDID) > 0) &&
				drm_edid_is_valid(edid)) {
			drm_mode_connector_update_edid_property(
					connector, edid);
			n = drm_add_edid_modes(connector, edid);

			omap_connector->hdmi_mode =
				drm_detect_hdmi_monitor(edid);
		} else {
			drm_mode_connector_update_edid_property(
					connector, NULL);
		}

		kfree(edid);
	} else {
		struct drm_display_mode *mode = drm_mode_create(dev);
		struct omap_video_timings timings = {0};

		dssdrv->get_timings(dssdev, &timings);

		copy_timings_omap_to_drm(mode, &timings);

		mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
		drm_mode_set_name(mode);
		drm_mode_probed_add(connector, mode);

		n = 1;
	}

	return n;
}

static int omap_connector_mode_valid(struct drm_connector *connector,
				 struct drm_display_mode *mode)
{
	struct omap_connector *omap_connector = to_omap_connector(connector);
	struct omap_dss_device *dssdev = omap_connector->dssdev;
	struct omap_dss_driver *dssdrv = dssdev->driver;
	struct omap_video_timings timings = {0};
	struct drm_device *dev = connector->dev;
	struct drm_display_mode *new_mode;
	int r, ret = MODE_BAD;

	copy_timings_drm_to_omap(&timings, mode);
	mode->vrefresh = drm_mode_vrefresh(mode);

	/*
	 * if the panel driver doesn't have a check_timings, it's most likely
	 * a fixed resolution panel, check if the timings match with the
	 * panel's timings
	 */
	if (dssdrv->check_timings) {
		r = dssdrv->check_timings(dssdev, &timings);
	} else {
		struct omap_video_timings t = {0};

		dssdrv->get_timings(dssdev, &t);

		if (memcmp(&timings, &t, sizeof(struct omap_video_timings)))
			r = -EINVAL;
		else
			r = 0;
	}

	if (!r) {
		/* check if vrefresh is still valid */
		new_mode = drm_mode_duplicate(dev, mode);
		new_mode->clock = timings.pixelclock / 1000;
		new_mode->vrefresh = 0;
		if (mode->vrefresh == drm_mode_vrefresh(new_mode))
			ret = MODE_OK;
		drm_mode_destroy(dev, new_mode);
	}

	DBG("connector: mode %s: "
			"%d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
			(ret == MODE_OK) ? "valid" : "invalid",
			mode->base.id, mode->name, mode->vrefresh, mode->clock,
			mode->hdisplay, mode->hsync_start,
			mode->hsync_end, mode->htotal,
			mode->vdisplay, mode->vsync_start,
			mode->vsync_end, mode->vtotal, mode->type, mode->flags);

	return ret;
}

static const struct drm_connector_funcs omap_connector_funcs = {
	.dpms = drm_atomic_helper_connector_dpms,
	.reset = drm_atomic_helper_connector_reset,
	.detect = omap_connector_detect,
	.fill_modes = drm_helper_probe_single_connector_modes,
	.destroy = omap_connector_destroy,
	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
};

static const struct drm_connector_helper_funcs omap_connector_helper_funcs = {
	.get_modes = omap_connector_get_modes,
	.mode_valid = omap_connector_mode_valid,
};

/* initialize connector */
struct drm_connector *omap_connector_init(struct drm_device *dev,
		int connector_type, struct omap_dss_device *dssdev,
		struct drm_encoder *encoder)
{
	struct drm_connector *connector = NULL;
	struct omap_connector *omap_connector;

	DBG("%s", dssdev->name);

	omap_dss_get_device(dssdev);

	omap_connector = kzalloc(sizeof(struct omap_connector), GFP_KERNEL);
	if (!omap_connector)
		goto fail;

	omap_connector->dssdev = dssdev;

	connector = &omap_connector->base;

	drm_connector_init(dev, connector, &omap_connector_funcs,
				connector_type);
	drm_connector_helper_add(connector, &omap_connector_helper_funcs);

#if 0 /* enable when dss2 supports hotplug */
	if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_HPD)
		connector->polled = 0;
	else
#endif
		connector->polled = DRM_CONNECTOR_POLL_CONNECT |
				DRM_CONNECTOR_POLL_DISCONNECT;

	connector->interlace_allowed = 1;
	connector->doublescan_allowed = 0;

	drm_connector_register(connector);

	return connector;

fail:
	if (connector)
		omap_connector_destroy(connector);

	return NULL;
}
Commit	Line	Data
cd5351f4	1	/*
8bb0daff	2	* drivers/gpu/drm/omapdrm/omap_connector.c
cd5351f4 RC	3	*
	4	* Copyright (C) 2011 Texas Instruments
	5	* Author: Rob Clark <rob@ti.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License version 2 as published by
	9	* the Free Software Foundation.
	10	*
	11	* This program is distributed in the hope that it will be useful, but WITHOUT
	12	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	13	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	14	* more details.
	15	*
	16	* You should have received a copy of the GNU General Public License along with
	17	* this program. If not, see <http://www.gnu.org/licenses/>.
	18	*/
	19
69a12263	20	#include <drm/drm_atomic_helper.h>
2d278f54 LP	21	#include <drm/drm_crtc.h>
2d278f54 LP	22	#include <drm/drm_crtc_helper.h>
cd5351f4	23
2d278f54	24	#include "omap_drv.h"
cd5351f4 RC	25
	26	/*
	27	* connector funcs
	28	*/
	29
	30	#define to_omap_connector(x) container_of(x, struct omap_connector, base)
	31
	32	struct omap_connector {
	33	struct drm_connector base;
	34	struct omap_dss_device *dssdev;
4f930c0f	35	bool hdmi_mode;
cd5351f4 RC	36	};
cd5351f4 RC	37
4f930c0f TV	38	bool omap_connector_get_hdmi_mode(struct drm_connector *connector)
	39	{
	40	struct omap_connector *omap_connector = to_omap_connector(connector);
	41
	42	return omap_connector->hdmi_mode;
	43	}
	44
f5f9454c	45	void copy_timings_omap_to_drm(struct drm_display_mode *mode,
cd5351f4 RC	46	struct omap_video_timings *timings)
cd5351f4 RC	47	{
d8d78941	48	mode->clock = timings->pixelclock / 1000;
cd5351f4	49
81899060	50	mode->hdisplay = timings->hactive;
0a30e150	51	mode->hsync_start = mode->hdisplay + timings->hfront_porch;
4dc2250d	52	mode->hsync_end = mode->hsync_start + timings->hsync_len;
a85f4a80	53	mode->htotal = mode->hsync_end + timings->hback_porch;
cd5351f4	54
fb7f3c43	55	mode->vdisplay = timings->vactive;
0996c68e	56	mode->vsync_start = mode->vdisplay + timings->vfront_porch;
d5bcf0aa	57	mode->vsync_end = mode->vsync_start + timings->vsync_len;
458540c6	58	mode->vtotal = mode->vsync_end + timings->vback_porch;
cd5351f4	59
0b0d7b62 RC	60	mode->flags = 0;
0b0d7b62 RC	61
53058299	62	if (timings->flags & DISPLAY_FLAGS_INTERLACED)
0b0d7b62	63	mode->flags \|= DRM_MODE_FLAG_INTERLACE;
94254edc	64
531efb38	65	if (timings->flags & DISPLAY_FLAGS_DOUBLECLK)
25358958 TV	66	mode->flags \|= DRM_MODE_FLAG_DBLCLK;
25358958 TV	67
6b44cd27	68	if (timings->flags & DISPLAY_FLAGS_HSYNC_HIGH)
94254edc RC	69	mode->flags \|= DRM_MODE_FLAG_PHSYNC;
	70	else
	71	mode->flags \|= DRM_MODE_FLAG_NHSYNC;
	72
6b44cd27	73	if (timings->flags & DISPLAY_FLAGS_VSYNC_HIGH)
94254edc RC	74	mode->flags \|= DRM_MODE_FLAG_PVSYNC;
	75	else
	76	mode->flags \|= DRM_MODE_FLAG_NVSYNC;
cd5351f4 RC	77	}
cd5351f4 RC	78
f5f9454c	79	void copy_timings_drm_to_omap(struct omap_video_timings *timings,
cd5351f4 RC	80	struct drm_display_mode *mode)
cd5351f4 RC	81	{
d8d78941	82	timings->pixelclock = mode->clock * 1000;
cd5351f4	83
81899060	84	timings->hactive = mode->hdisplay;
0a30e150	85	timings->hfront_porch = mode->hsync_start - mode->hdisplay;
4dc2250d	86	timings->hsync_len = mode->hsync_end - mode->hsync_start;
a85f4a80	87	timings->hback_porch = mode->htotal - mode->hsync_end;
cd5351f4	88
fb7f3c43	89	timings->vactive = mode->vdisplay;
0996c68e	90	timings->vfront_porch = mode->vsync_start - mode->vdisplay;
d5bcf0aa	91	timings->vsync_len = mode->vsync_end - mode->vsync_start;
458540c6	92	timings->vback_porch = mode->vtotal - mode->vsync_end;
0b0d7b62	93
53058299 PU	94	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
	95	timings->flags \|= DISPLAY_FLAGS_INTERLACED;
	96
531efb38 PU	97	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
531efb38 PU	98	timings->flags \|= DISPLAY_FLAGS_DOUBLECLK;
94254edc RC	99
94254edc RC	100	if (mode->flags & DRM_MODE_FLAG_PHSYNC)
6b44cd27	101	timings->flags \|= DISPLAY_FLAGS_HSYNC_HIGH;
94254edc	102	else
6b44cd27	103	timings->flags \|= DISPLAY_FLAGS_HSYNC_LOW;
94254edc RC	104
94254edc RC	105	if (mode->flags & DRM_MODE_FLAG_PVSYNC)
6b44cd27	106	timings->flags \|= DISPLAY_FLAGS_VSYNC_HIGH;
94254edc	107	else
6b44cd27	108	timings->flags \|= DISPLAY_FLAGS_VSYNC_LOW;
94254edc	109
f149e17a	110	timings->flags \|= DISPLAY_FLAGS_DE_HIGH \| DISPLAY_FLAGS_PIXDATA_POSEDGE;
7a16360d	111	timings->sync_pclk_edge = OMAPDSS_DRIVE_SIG_FALLING_EDGE;
cd5351f4 RC	112	}
cd5351f4 RC	113
f5f9454c	114	static enum drm_connector_status omap_connector_detect(
cd5351f4 RC	115	struct drm_connector *connector, bool force)
	116	{
	117	struct omap_connector *omap_connector = to_omap_connector(connector);
	118	struct omap_dss_device *dssdev = omap_connector->dssdev;
	119	struct omap_dss_driver *dssdrv = dssdev->driver;
	120	enum drm_connector_status ret;
	121
	122	if (dssdrv->detect) {
fdbf20b3	123	if (dssdrv->detect(dssdev))
cd5351f4	124	ret = connector_status_connected;
fdbf20b3	125	else
cd5351f4	126	ret = connector_status_disconnected;
bddabbe1 AT	127	} else if (dssdev->type == OMAP_DISPLAY_TYPE_DPI \|\|
	128	dssdev->type == OMAP_DISPLAY_TYPE_DBI \|\|
	129	dssdev->type == OMAP_DISPLAY_TYPE_SDI \|\|
	130	dssdev->type == OMAP_DISPLAY_TYPE_DSI) {
	131	ret = connector_status_connected;
cd5351f4 RC	132	} else {
	133	ret = connector_status_unknown;
	134	}
	135
	136	VERB("%s: %d (force=%d)", omap_connector->dssdev->name, ret, force);
	137
	138	return ret;
	139	}
	140
	141	static void omap_connector_destroy(struct drm_connector *connector)
	142	{
	143	struct omap_connector *omap_connector = to_omap_connector(connector);
	144	struct omap_dss_device *dssdev = omap_connector->dssdev;
	145
cd5351f4	146	DBG("%s", omap_connector->dssdev->name);
34ea3d38	147	drm_connector_unregister(connector);
cd5351f4 RC	148	drm_connector_cleanup(connector);
	149	kfree(omap_connector);
	150
	151	omap_dss_put_device(dssdev);
	152	}
	153
	154	#define MAX_EDID 512
	155
	156	static int omap_connector_get_modes(struct drm_connector *connector)
	157	{
	158	struct omap_connector *omap_connector = to_omap_connector(connector);
	159	struct omap_dss_device *dssdev = omap_connector->dssdev;
	160	struct omap_dss_driver *dssdrv = dssdev->driver;
	161	struct drm_device *dev = connector->dev;
	162	int n = 0;
	163
	164	DBG("%s", omap_connector->dssdev->name);
	165
	166	/* if display exposes EDID, then we parse that in the normal way to
	167	* build table of supported modes.. otherwise (ie. fixed resolution
	168	* LCD panels) we just return a single mode corresponding to the
	169	* currently configured timings:
	170	*/
	171	if (dssdrv->read_edid) {
	172	void *edid = kzalloc(MAX_EDID, GFP_KERNEL);
	173
	174	if ((dssdrv->read_edid(dssdev, edid, MAX_EDID) > 0) &&
	175	drm_edid_is_valid(edid)) {
	176	drm_mode_connector_update_edid_property(
	177	connector, edid);
	178	n = drm_add_edid_modes(connector, edid);
4f930c0f TV	179
	180	omap_connector->hdmi_mode =
	181	drm_detect_hdmi_monitor(edid);
cd5351f4 RC	182	} else {
	183	drm_mode_connector_update_edid_property(
	184	connector, NULL);
cd5351f4	185	}
4f930c0f	186
451023dc	187	kfree(edid);
cd5351f4 RC	188	} else {
cd5351f4 RC	189	struct drm_display_mode *mode = drm_mode_create(dev);
0b0d7b62	190	struct omap_video_timings timings = {0};
cd5351f4 RC	191
	192	dssdrv->get_timings(dssdev, &timings);
	193
	194	copy_timings_omap_to_drm(mode, &timings);
	195
	196	mode->type = DRM_MODE_TYPE_DRIVER \| DRM_MODE_TYPE_PREFERRED;
	197	drm_mode_set_name(mode);
	198	drm_mode_probed_add(connector, mode);
	199
	200	n = 1;
	201	}
	202
	203	return n;
	204	}
	205
	206	static int omap_connector_mode_valid(struct drm_connector *connector,
	207	struct drm_display_mode *mode)
	208	{
	209	struct omap_connector *omap_connector = to_omap_connector(connector);
	210	struct omap_dss_device *dssdev = omap_connector->dssdev;
	211	struct omap_dss_driver *dssdrv = dssdev->driver;
	212	struct omap_video_timings timings = {0};
	213	struct drm_device *dev = connector->dev;
	214	struct drm_display_mode *new_mode;
bddabbe1	215	int r, ret = MODE_BAD;
cd5351f4 RC	216
	217	copy_timings_drm_to_omap(&timings, mode);
	218	mode->vrefresh = drm_mode_vrefresh(mode);
	219
bddabbe1 AT	220	/*
	221	* if the panel driver doesn't have a check_timings, it's most likely
	222	* a fixed resolution panel, check if the timings match with the
	223	* panel's timings
	224	*/
	225	if (dssdrv->check_timings) {
	226	r = dssdrv->check_timings(dssdev, &timings);
	227	} else {
	228	struct omap_video_timings t = {0};
	229
	230	dssdrv->get_timings(dssdev, &t);
	231
	232	if (memcmp(&timings, &t, sizeof(struct omap_video_timings)))
	233	r = -EINVAL;
	234	else
	235	r = 0;
	236	}
	237
	238	if (!r) {
cd5351f4 RC	239	/* check if vrefresh is still valid */
cd5351f4 RC	240	new_mode = drm_mode_duplicate(dev, mode);
d8d78941	241	new_mode->clock = timings.pixelclock / 1000;
cd5351f4 RC	242	new_mode->vrefresh = 0;
	243	if (mode->vrefresh == drm_mode_vrefresh(new_mode))
	244	ret = MODE_OK;
	245	drm_mode_destroy(dev, new_mode);
	246	}
	247
	248	DBG("connector: mode %s: "
	249	"%d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
	250	(ret == MODE_OK) ? "valid" : "invalid",
	251	mode->base.id, mode->name, mode->vrefresh, mode->clock,
	252	mode->hdisplay, mode->hsync_start,
	253	mode->hsync_end, mode->htotal,
	254	mode->vdisplay, mode->vsync_start,
	255	mode->vsync_end, mode->vtotal, mode->type, mode->flags);
	256
	257	return ret;
	258	}
	259
cd5351f4	260	static const struct drm_connector_funcs omap_connector_funcs = {
aea3cab1	261	.dpms = drm_atomic_helper_connector_dpms,
69a12263	262	.reset = drm_atomic_helper_connector_reset,
cd5351f4 RC	263	.detect = omap_connector_detect,
	264	.fill_modes = drm_helper_probe_single_connector_modes,
	265	.destroy = omap_connector_destroy,
69a12263 LP	266	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
69a12263 LP	267	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
cd5351f4 RC	268	};
	269
	270	static const struct drm_connector_helper_funcs omap_connector_helper_funcs = {
	271	.get_modes = omap_connector_get_modes,
	272	.mode_valid = omap_connector_mode_valid,
cd5351f4 RC	273	};
cd5351f4 RC	274
cd5351f4 RC	275	/* initialize connector */
cd5351f4 RC	276	struct drm_connector omap_connector_init(struct drm_device dev,
f5f9454c RC	277	int connector_type, struct omap_dss_device *dssdev,
f5f9454c RC	278	struct drm_encoder *encoder)
cd5351f4 RC	279	{
	280	struct drm_connector *connector = NULL;
	281	struct omap_connector *omap_connector;
	282
	283	DBG("%s", dssdev->name);
	284
	285	omap_dss_get_device(dssdev);
	286
	287	omap_connector = kzalloc(sizeof(struct omap_connector), GFP_KERNEL);
78110bb8	288	if (!omap_connector)
cd5351f4	289	goto fail;
cd5351f4 RC	290
cd5351f4 RC	291	omap_connector->dssdev = dssdev;
f5f9454c	292
cd5351f4 RC	293	connector = &omap_connector->base;
	294
	295	drm_connector_init(dev, connector, &omap_connector_funcs,
	296	connector_type);
	297	drm_connector_helper_add(connector, &omap_connector_helper_funcs);
	298
	299	#if 0 /* enable when dss2 supports hotplug */
	300	if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_HPD)
	301	connector->polled = 0;
	302	else
	303	#endif
	304	connector->polled = DRM_CONNECTOR_POLL_CONNECT \|
	305	DRM_CONNECTOR_POLL_DISCONNECT;
	306
	307	connector->interlace_allowed = 1;
	308	connector->doublescan_allowed = 0;
	309
34ea3d38	310	drm_connector_register(connector);
cd5351f4 RC	311
	312	return connector;
	313
	314	fail:
fdbf20b3	315	if (connector)
cd5351f4	316	omap_connector_destroy(connector);
cd5351f4 RC	317
	318	return NULL;
	319	}