[deliverable/linux.git] / drivers / gpu / drm / exynos / exynos_drm_connector.c

/*
 * Copyright (c) 2011 Samsung Electronics Co., Ltd.
 * Authors:
 *	Inki Dae <inki.dae@samsung.com>
 *	Joonyoung Shim <jy0922.shim@samsung.com>
 *	Seung-Woo Kim <sw0312.kim@samsung.com>
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>

#include <drm/exynos_drm.h>
#include "exynos_drm_drv.h"
#include "exynos_drm_encoder.h"

#define to_exynos_connector(x)	container_of(x, struct exynos_drm_connector,\
				drm_connector)

struct exynos_drm_connector {
	struct drm_connector	drm_connector;
	uint32_t		encoder_id;
	struct exynos_drm_manager *manager;
	uint32_t		dpms;
};

/* convert exynos_video_timings to drm_display_mode */
static inline void
convert_to_display_mode(struct drm_display_mode *mode,
			struct exynos_drm_panel_info *panel)
{
	struct fb_videomode *timing = &panel->timing;
	DRM_DEBUG_KMS("%s\n", __FILE__);

	mode->clock = timing->pixclock / 1000;
	mode->vrefresh = timing->refresh;

	mode->hdisplay = timing->xres;
	mode->hsync_start = mode->hdisplay + timing->right_margin;
	mode->hsync_end = mode->hsync_start + timing->hsync_len;
	mode->htotal = mode->hsync_end + timing->left_margin;

	mode->vdisplay = timing->yres;
	mode->vsync_start = mode->vdisplay + timing->lower_margin;
	mode->vsync_end = mode->vsync_start + timing->vsync_len;
	mode->vtotal = mode->vsync_end + timing->upper_margin;
	mode->width_mm = panel->width_mm;
	mode->height_mm = panel->height_mm;

	if (timing->vmode & FB_VMODE_INTERLACED)
		mode->flags |= DRM_MODE_FLAG_INTERLACE;

	if (timing->vmode & FB_VMODE_DOUBLE)
		mode->flags |= DRM_MODE_FLAG_DBLSCAN;
}

/* convert drm_display_mode to exynos_video_timings */
static inline void
convert_to_video_timing(struct fb_videomode *timing,
			struct drm_display_mode *mode)
{
	DRM_DEBUG_KMS("%s\n", __FILE__);

	memset(timing, 0, sizeof(*timing));

	timing->pixclock = mode->clock * 1000;
	timing->refresh = drm_mode_vrefresh(mode);

	timing->xres = mode->hdisplay;
	timing->right_margin = mode->hsync_start - mode->hdisplay;
	timing->hsync_len = mode->hsync_end - mode->hsync_start;
	timing->left_margin = mode->htotal - mode->hsync_end;

	timing->yres = mode->vdisplay;
	timing->lower_margin = mode->vsync_start - mode->vdisplay;
	timing->vsync_len = mode->vsync_end - mode->vsync_start;
	timing->upper_margin = mode->vtotal - mode->vsync_end;

	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
		timing->vmode = FB_VMODE_INTERLACED;
	else
		timing->vmode = FB_VMODE_NONINTERLACED;

	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
		timing->vmode |= FB_VMODE_DOUBLE;
}

static int exynos_drm_connector_get_modes(struct drm_connector *connector)
{
	struct exynos_drm_connector *exynos_connector =
					to_exynos_connector(connector);
	struct exynos_drm_manager *manager = exynos_connector->manager;
	struct exynos_drm_display_ops *display_ops = manager->display_ops;
	struct edid *edid = NULL;
	unsigned int count = 0;
	int ret;

	DRM_DEBUG_KMS("%s\n", __FILE__);

	if (!display_ops) {
		DRM_DEBUG_KMS("display_ops is null.\n");
		return 0;
	}

	/*
	 * if get_edid() exists then get_edid() callback of hdmi side
	 * is called to get edid data through i2c interface else
	 * get timing from the FIMD driver(display controller).
	 *
	 * P.S. in case of lcd panel, count is always 1 if success
	 * because lcd panel has only one mode.
	 */
	if (display_ops->get_edid) {
		edid = display_ops->get_edid(manager->dev, connector);
		if (IS_ERR_OR_NULL(edid)) {
			ret = PTR_ERR(edid);
			edid = NULL;
			DRM_ERROR("Panel operation get_edid failed %d\n", ret);
			goto out;
		}

		count = drm_add_edid_modes(connector, edid);
		if (!count) {
			DRM_ERROR("Add edid modes failed %d\n", count);
			goto out;
		}

		drm_mode_connector_update_edid_property(connector, edid);
	} else {
		struct exynos_drm_panel_info *panel;
		struct drm_display_mode *mode = drm_mode_create(connector->dev);
		if (!mode) {
			DRM_ERROR("failed to create a new display mode.\n");
			return 0;
		}

		if (display_ops->get_panel)
			panel = display_ops->get_panel(manager->dev);
		else {
			drm_mode_destroy(connector->dev, mode);
			return 0;
		}

		convert_to_display_mode(mode, panel);
		connector->display_info.width_mm = mode->width_mm;
		connector->display_info.height_mm = mode->height_mm;

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

		count = 1;
	}

out:
	kfree(edid);
	return count;
}

static int exynos_drm_connector_mode_valid(struct drm_connector *connector,
					    struct drm_display_mode *mode)
{
	struct exynos_drm_connector *exynos_connector =
					to_exynos_connector(connector);
	struct exynos_drm_manager *manager = exynos_connector->manager;
	struct exynos_drm_display_ops *display_ops = manager->display_ops;
	struct fb_videomode timing;
	int ret = MODE_BAD;

	DRM_DEBUG_KMS("%s\n", __FILE__);

	convert_to_video_timing(&timing, mode);

	if (display_ops && display_ops->check_timing)
		if (!display_ops->check_timing(manager->dev, (void *)&timing))
			ret = MODE_OK;

	return ret;
}

struct drm_encoder *exynos_drm_best_encoder(struct drm_connector *connector)
{
	struct drm_device *dev = connector->dev;
	struct exynos_drm_connector *exynos_connector =
					to_exynos_connector(connector);
	struct drm_mode_object *obj;
	struct drm_encoder *encoder;

	DRM_DEBUG_KMS("%s\n", __FILE__);

	obj = drm_mode_object_find(dev, exynos_connector->encoder_id,
				   DRM_MODE_OBJECT_ENCODER);
	if (!obj) {
		DRM_DEBUG_KMS("Unknown ENCODER ID %d\n",
				exynos_connector->encoder_id);
		return NULL;
	}

	encoder = obj_to_encoder(obj);

	return encoder;
}

static struct drm_connector_helper_funcs exynos_connector_helper_funcs = {
	.get_modes	= exynos_drm_connector_get_modes,
	.mode_valid	= exynos_drm_connector_mode_valid,
	.best_encoder	= exynos_drm_best_encoder,
};

void exynos_drm_display_power(struct drm_connector *connector, int mode)
{
	struct drm_encoder *encoder = exynos_drm_best_encoder(connector);
	struct exynos_drm_connector *exynos_connector;
	struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder);
	struct exynos_drm_display_ops *display_ops = manager->display_ops;

	exynos_connector = to_exynos_connector(connector);

	if (exynos_connector->dpms == mode) {
		DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
		return;
	}

	if (display_ops && display_ops->power_on)
		display_ops->power_on(manager->dev, mode);

	exynos_connector->dpms = mode;
}

static void exynos_drm_connector_dpms(struct drm_connector *connector,
					int mode)
{
	DRM_DEBUG_KMS("%s\n", __FILE__);

	/*
	 * in case that drm_crtc_helper_set_mode() is called,
	 * encoder/crtc->funcs->dpms() will be just returned
	 * because they already were DRM_MODE_DPMS_ON so only
	 * exynos_drm_display_power() will be called.
	 */
	drm_helper_connector_dpms(connector, mode);

	exynos_drm_display_power(connector, mode);

}

static int exynos_drm_connector_fill_modes(struct drm_connector *connector,
				unsigned int max_width, unsigned int max_height)
{
	struct exynos_drm_connector *exynos_connector =
					to_exynos_connector(connector);
	struct exynos_drm_manager *manager = exynos_connector->manager;
	struct exynos_drm_manager_ops *ops = manager->ops;
	unsigned int width, height;

	width = max_width;
	height = max_height;

	/*
	 * if specific driver want to find desired_mode using maxmum
	 * resolution then get max width and height from that driver.
	 */
	if (ops && ops->get_max_resol)
		ops->get_max_resol(manager->dev, &width, &height);

	return drm_helper_probe_single_connector_modes(connector, width,
							height);
}

/* get detection status of display device. */
static enum drm_connector_status
exynos_drm_connector_detect(struct drm_connector *connector, bool force)
{
	struct exynos_drm_connector *exynos_connector =
					to_exynos_connector(connector);
	struct exynos_drm_manager *manager = exynos_connector->manager;
	struct exynos_drm_display_ops *display_ops =
					manager->display_ops;
	enum drm_connector_status status = connector_status_disconnected;

	DRM_DEBUG_KMS("%s\n", __FILE__);

	if (display_ops && display_ops->is_connected) {
		if (display_ops->is_connected(manager->dev))
			status = connector_status_connected;
		else
			status = connector_status_disconnected;
	}

	return status;
}

static void exynos_drm_connector_destroy(struct drm_connector *connector)
{
	struct exynos_drm_connector *exynos_connector =
		to_exynos_connector(connector);

	DRM_DEBUG_KMS("%s\n", __FILE__);

	drm_sysfs_connector_remove(connector);
	drm_connector_cleanup(connector);
	kfree(exynos_connector);
}

static struct drm_connector_funcs exynos_connector_funcs = {
	.dpms		= exynos_drm_connector_dpms,
	.fill_modes	= exynos_drm_connector_fill_modes,
	.detect		= exynos_drm_connector_detect,
	.destroy	= exynos_drm_connector_destroy,
};

struct drm_connector *exynos_drm_connector_create(struct drm_device *dev,
						   struct drm_encoder *encoder)
{
	struct exynos_drm_connector *exynos_connector;
	struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder);
	struct drm_connector *connector;
	int type;
	int err;

	DRM_DEBUG_KMS("%s\n", __FILE__);

	exynos_connector = kzalloc(sizeof(*exynos_connector), GFP_KERNEL);
	if (!exynos_connector) {
		DRM_ERROR("failed to allocate connector\n");
		return NULL;
	}

	connector = &exynos_connector->drm_connector;

	switch (manager->display_ops->type) {
	case EXYNOS_DISPLAY_TYPE_HDMI:
		type = DRM_MODE_CONNECTOR_HDMIA;
		connector->interlace_allowed = true;
		connector->polled = DRM_CONNECTOR_POLL_HPD;
		break;
	case EXYNOS_DISPLAY_TYPE_VIDI:
		type = DRM_MODE_CONNECTOR_VIRTUAL;
		connector->polled = DRM_CONNECTOR_POLL_HPD;
		break;
	default:
		type = DRM_MODE_CONNECTOR_Unknown;
		break;
	}

	drm_connector_init(dev, connector, &exynos_connector_funcs, type);
	drm_connector_helper_add(connector, &exynos_connector_helper_funcs);

	err = drm_sysfs_connector_add(connector);
	if (err)
		goto err_connector;

	exynos_connector->encoder_id = encoder->base.id;
	exynos_connector->manager = manager;
	exynos_connector->dpms = DRM_MODE_DPMS_OFF;
	connector->dpms = DRM_MODE_DPMS_OFF;
	connector->encoder = encoder;

	err = drm_mode_connector_attach_encoder(connector, encoder);
	if (err) {
		DRM_ERROR("failed to attach a connector to a encoder\n");
		goto err_sysfs;
	}

	DRM_DEBUG_KMS("connector has been created\n");

	return connector;

err_sysfs:
	drm_sysfs_connector_remove(connector);
err_connector:
	drm_connector_cleanup(connector);
	kfree(exynos_connector);
	return NULL;
}
Commit	Line	Data
1c248b7d ID	1	/*
	2	* Copyright (c) 2011 Samsung Electronics Co., Ltd.
	3	* Authors:
	4	* Inki Dae <inki.dae@samsung.com>
	5	* Joonyoung Shim <jy0922.shim@samsung.com>
	6	* Seung-Woo Kim <sw0312.kim@samsung.com>
	7	*
d81aecb5 ID	8	* This program is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation; either version 2 of the License, or (at your
	11	* option) any later version.
1c248b7d ID	12	*/
1c248b7d ID	13
760285e7 DH	14	#include <drm/drmP.h>
760285e7 DH	15	#include <drm/drm_crtc_helper.h>
1c248b7d	16
607c50d4	17	#include <drm/exynos_drm.h>
1c248b7d ID	18	#include "exynos_drm_drv.h"
	19	#include "exynos_drm_encoder.h"
	20
1c248b7d ID	21	#define to_exynos_connector(x) container_of(x, struct exynos_drm_connector,\
	22	drm_connector)
	23
	24	struct exynos_drm_connector {
	25	struct drm_connector drm_connector;
adb6b159 ID	26	uint32_t encoder_id;
adb6b159 ID	27	struct exynos_drm_manager *manager;
50caf25c	28	uint32_t dpms;
1c248b7d ID	29	};
	30
	31	/* convert exynos_video_timings to drm_display_mode */
	32	static inline void
	33	convert_to_display_mode(struct drm_display_mode *mode,
607c50d4	34	struct exynos_drm_panel_info *panel)
1c248b7d	35	{
607c50d4	36	struct fb_videomode *timing = &panel->timing;
1c248b7d ID	37	DRM_DEBUG_KMS("%s\n", __FILE__);
	38
	39	mode->clock = timing->pixclock / 1000;
8b58dfe0	40	mode->vrefresh = timing->refresh;
1c248b7d ID	41
1c248b7d ID	42	mode->hdisplay = timing->xres;
f7d86075	43	mode->hsync_start = mode->hdisplay + timing->right_margin;
1c248b7d	44	mode->hsync_end = mode->hsync_start + timing->hsync_len;
f7d86075	45	mode->htotal = mode->hsync_end + timing->left_margin;
1c248b7d ID	46
1c248b7d ID	47	mode->vdisplay = timing->yres;
f7d86075	48	mode->vsync_start = mode->vdisplay + timing->lower_margin;
1c248b7d	49	mode->vsync_end = mode->vsync_start + timing->vsync_len;
f7d86075	50	mode->vtotal = mode->vsync_end + timing->upper_margin;
607c50d4 ECK	51	mode->width_mm = panel->width_mm;
607c50d4 ECK	52	mode->height_mm = panel->height_mm;
8b58dfe0 SWK	53
	54	if (timing->vmode & FB_VMODE_INTERLACED)
	55	mode->flags \|= DRM_MODE_FLAG_INTERLACE;
	56
	57	if (timing->vmode & FB_VMODE_DOUBLE)
	58	mode->flags \|= DRM_MODE_FLAG_DBLSCAN;
1c248b7d ID	59	}
	60
	61	/* convert drm_display_mode to exynos_video_timings */
	62	static inline void
	63	convert_to_video_timing(struct fb_videomode *timing,
	64	struct drm_display_mode *mode)
	65	{
	66	DRM_DEBUG_KMS("%s\n", __FILE__);
	67
	68	memset(timing, 0, sizeof(*timing));
	69
	70	timing->pixclock = mode->clock * 1000;
8b58dfe0	71	timing->refresh = drm_mode_vrefresh(mode);
1c248b7d ID	72
1c248b7d ID	73	timing->xres = mode->hdisplay;
f7d86075	74	timing->right_margin = mode->hsync_start - mode->hdisplay;
1c248b7d	75	timing->hsync_len = mode->hsync_end - mode->hsync_start;
f7d86075	76	timing->left_margin = mode->htotal - mode->hsync_end;
1c248b7d ID	77
1c248b7d ID	78	timing->yres = mode->vdisplay;
f7d86075	79	timing->lower_margin = mode->vsync_start - mode->vdisplay;
1c248b7d	80	timing->vsync_len = mode->vsync_end - mode->vsync_start;
f7d86075	81	timing->upper_margin = mode->vtotal - mode->vsync_end;
1c248b7d ID	82
	83	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
	84	timing->vmode = FB_VMODE_INTERLACED;
	85	else
	86	timing->vmode = FB_VMODE_NONINTERLACED;
	87
	88	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
	89	timing->vmode \|= FB_VMODE_DOUBLE;
	90	}
	91
	92	static int exynos_drm_connector_get_modes(struct drm_connector *connector)
	93	{
adb6b159 ID	94	struct exynos_drm_connector *exynos_connector =
	95	to_exynos_connector(connector);
	96	struct exynos_drm_manager *manager = exynos_connector->manager;
74ccc539	97	struct exynos_drm_display_ops *display_ops = manager->display_ops;
9c08e4ba RS	98	struct edid *edid = NULL;
	99	unsigned int count = 0;
	100	int ret;
1c248b7d ID	101
	102	DRM_DEBUG_KMS("%s\n", __FILE__);
	103
74ccc539 ID	104	if (!display_ops) {
74ccc539 ID	105	DRM_DEBUG_KMS("display_ops is null.\n");
1c248b7d ID	106	return 0;
	107	}
	108
	109	/*
	110	* if get_edid() exists then get_edid() callback of hdmi side
	111	* is called to get edid data through i2c interface else
	112	* get timing from the FIMD driver(display controller).
	113	*
	114	* P.S. in case of lcd panel, count is always 1 if success
	115	* because lcd panel has only one mode.
	116	*/
74ccc539	117	if (display_ops->get_edid) {
9c08e4ba RS	118	edid = display_ops->get_edid(manager->dev, connector);
	119	if (IS_ERR_OR_NULL(edid)) {
	120	ret = PTR_ERR(edid);
	121	edid = NULL;
	122	DRM_ERROR("Panel operation get_edid failed %d\n", ret);
	123	goto out;
1c248b7d ID	124	}
1c248b7d ID	125
9c08e4ba	126	count = drm_add_edid_modes(connector, edid);
81ed7039	127	if (!count) {
9c08e4ba RS	128	DRM_ERROR("Add edid modes failed %d\n", count);
9c08e4ba RS	129	goto out;
1c248b7d ID	130	}
	131
	132	drm_mode_connector_update_edid_property(connector, edid);
1c248b7d	133	} else {
607c50d4	134	struct exynos_drm_panel_info *panel;
53bd5556 SK	135	struct drm_display_mode *mode = drm_mode_create(connector->dev);
	136	if (!mode) {
	137	DRM_ERROR("failed to create a new display mode.\n");
	138	return 0;
	139	}
1c248b7d	140
607c50d4 ECK	141	if (display_ops->get_panel)
607c50d4 ECK	142	panel = display_ops->get_panel(manager->dev);
1c248b7d ID	143	else {
	144	drm_mode_destroy(connector->dev, mode);
	145	return 0;
	146	}
	147
607c50d4 ECK	148	convert_to_display_mode(mode, panel);
	149	connector->display_info.width_mm = mode->width_mm;
	150	connector->display_info.height_mm = mode->height_mm;
1c248b7d ID	151
	152	mode->type = DRM_MODE_TYPE_DRIVER \| DRM_MODE_TYPE_PREFERRED;
	153	drm_mode_set_name(mode);
	154	drm_mode_probed_add(connector, mode);
	155
	156	count = 1;
	157	}
	158
9c08e4ba RS	159	out:
9c08e4ba RS	160	kfree(edid);
1c248b7d ID	161	return count;
	162	}
	163
	164	static int exynos_drm_connector_mode_valid(struct drm_connector *connector,
	165	struct drm_display_mode *mode)
	166	{
adb6b159 ID	167	struct exynos_drm_connector *exynos_connector =
	168	to_exynos_connector(connector);
	169	struct exynos_drm_manager *manager = exynos_connector->manager;
74ccc539	170	struct exynos_drm_display_ops *display_ops = manager->display_ops;
1c248b7d ID	171	struct fb_videomode timing;
	172	int ret = MODE_BAD;
	173
	174	DRM_DEBUG_KMS("%s\n", __FILE__);
	175
	176	convert_to_video_timing(&timing, mode);
	177
74ccc539 ID	178	if (display_ops && display_ops->check_timing)
74ccc539 ID	179	if (!display_ops->check_timing(manager->dev, (void *)&timing))
1c248b7d ID	180	ret = MODE_OK;
	181
	182	return ret;
	183	}
	184
58f6aad7	185	struct drm_encoder exynos_drm_best_encoder(struct drm_connector connector)
1c248b7d	186	{
adb6b159 ID	187	struct drm_device *dev = connector->dev;
	188	struct exynos_drm_connector *exynos_connector =
	189	to_exynos_connector(connector);
	190	struct drm_mode_object *obj;
	191	struct drm_encoder *encoder;
	192
1c248b7d ID	193	DRM_DEBUG_KMS("%s\n", __FILE__);
1c248b7d ID	194
adb6b159 ID	195	obj = drm_mode_object_find(dev, exynos_connector->encoder_id,
	196	DRM_MODE_OBJECT_ENCODER);
	197	if (!obj) {
	198	DRM_DEBUG_KMS("Unknown ENCODER ID %d\n",
	199	exynos_connector->encoder_id);
	200	return NULL;
	201	}
	202
	203	encoder = obj_to_encoder(obj);
	204
	205	return encoder;
1c248b7d ID	206	}
	207
	208	static struct drm_connector_helper_funcs exynos_connector_helper_funcs = {
	209	.get_modes = exynos_drm_connector_get_modes,
	210	.mode_valid = exynos_drm_connector_mode_valid,
	211	.best_encoder = exynos_drm_best_encoder,
	212	};
	213
50caf25c ID	214	void exynos_drm_display_power(struct drm_connector *connector, int mode)
50caf25c ID	215	{
58f6aad7	216	struct drm_encoder *encoder = exynos_drm_best_encoder(connector);
50caf25c ID	217	struct exynos_drm_connector *exynos_connector;
	218	struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder);
	219	struct exynos_drm_display_ops *display_ops = manager->display_ops;
	220
	221	exynos_connector = to_exynos_connector(connector);
	222
	223	if (exynos_connector->dpms == mode) {
	224	DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
	225	return;
	226	}
	227
	228	if (display_ops && display_ops->power_on)
	229	display_ops->power_on(manager->dev, mode);
	230
	231	exynos_connector->dpms = mode;
	232	}
	233
	234	static void exynos_drm_connector_dpms(struct drm_connector *connector,
	235	int mode)
	236	{
	237	DRM_DEBUG_KMS("%s\n", __FILE__);
	238
	239	/*
	240	* in case that drm_crtc_helper_set_mode() is called,
	241	* encoder/crtc->funcs->dpms() will be just returned
	242	* because they already were DRM_MODE_DPMS_ON so only
	243	* exynos_drm_display_power() will be called.
	244	*/
	245	drm_helper_connector_dpms(connector, mode);
	246
	247	exynos_drm_display_power(connector, mode);
	248
	249	}
	250
1de425b0 ID	251	static int exynos_drm_connector_fill_modes(struct drm_connector *connector,
	252	unsigned int max_width, unsigned int max_height)
	253	{
	254	struct exynos_drm_connector *exynos_connector =
	255	to_exynos_connector(connector);
	256	struct exynos_drm_manager *manager = exynos_connector->manager;
	257	struct exynos_drm_manager_ops *ops = manager->ops;
	258	unsigned int width, height;
	259
	260	width = max_width;
	261	height = max_height;
	262
	263	/*
	264	* if specific driver want to find desired_mode using maxmum
	265	* resolution then get max width and height from that driver.
	266	*/
	267	if (ops && ops->get_max_resol)
	268	ops->get_max_resol(manager->dev, &width, &height);
	269
	270	return drm_helper_probe_single_connector_modes(connector, width,
	271	height);
	272	}
	273
1c248b7d ID	274	/* get detection status of display device. */
	275	static enum drm_connector_status
	276	exynos_drm_connector_detect(struct drm_connector *connector, bool force)
	277	{
adb6b159 ID	278	struct exynos_drm_connector *exynos_connector =
	279	to_exynos_connector(connector);
	280	struct exynos_drm_manager *manager = exynos_connector->manager;
74ccc539 ID	281	struct exynos_drm_display_ops *display_ops =
74ccc539 ID	282	manager->display_ops;
1c248b7d ID	283	enum drm_connector_status status = connector_status_disconnected;
	284
	285	DRM_DEBUG_KMS("%s\n", __FILE__);
	286
74ccc539 ID	287	if (display_ops && display_ops->is_connected) {
74ccc539 ID	288	if (display_ops->is_connected(manager->dev))
1c248b7d ID	289	status = connector_status_connected;
	290	else
	291	status = connector_status_disconnected;
	292	}
	293
	294	return status;
	295	}
	296
	297	static void exynos_drm_connector_destroy(struct drm_connector *connector)
	298	{
	299	struct exynos_drm_connector *exynos_connector =
	300	to_exynos_connector(connector);
	301
	302	DRM_DEBUG_KMS("%s\n", __FILE__);
	303
	304	drm_sysfs_connector_remove(connector);
	305	drm_connector_cleanup(connector);
	306	kfree(exynos_connector);
	307	}
	308
	309	static struct drm_connector_funcs exynos_connector_funcs = {
50caf25c	310	.dpms = exynos_drm_connector_dpms,
1de425b0	311	.fill_modes = exynos_drm_connector_fill_modes,
1c248b7d ID	312	.detect = exynos_drm_connector_detect,
	313	.destroy = exynos_drm_connector_destroy,
	314	};
	315
	316	struct drm_connector exynos_drm_connector_create(struct drm_device dev,
	317	struct drm_encoder *encoder)
	318	{
	319	struct exynos_drm_connector *exynos_connector;
	320	struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder);
	321	struct drm_connector *connector;
	322	int type;
	323	int err;
	324
	325	DRM_DEBUG_KMS("%s\n", __FILE__);
	326
	327	exynos_connector = kzalloc(sizeof(*exynos_connector), GFP_KERNEL);
	328	if (!exynos_connector) {
	329	DRM_ERROR("failed to allocate connector\n");
	330	return NULL;
	331	}
	332
	333	connector = &exynos_connector->drm_connector;
	334
74ccc539	335	switch (manager->display_ops->type) {
1c248b7d ID	336	case EXYNOS_DISPLAY_TYPE_HDMI:
1c248b7d ID	337	type = DRM_MODE_CONNECTOR_HDMIA;
1b17b206 SWK	338	connector->interlace_allowed = true;
1b17b206 SWK	339	connector->polled = DRM_CONNECTOR_POLL_HPD;
1c248b7d	340	break;
b73d1230 ID	341	case EXYNOS_DISPLAY_TYPE_VIDI:
	342	type = DRM_MODE_CONNECTOR_VIRTUAL;
	343	connector->polled = DRM_CONNECTOR_POLL_HPD;
	344	break;
1c248b7d ID	345	default:
	346	type = DRM_MODE_CONNECTOR_Unknown;
	347	break;
	348	}
	349
	350	drm_connector_init(dev, connector, &exynos_connector_funcs, type);
	351	drm_connector_helper_add(connector, &exynos_connector_helper_funcs);
	352
	353	err = drm_sysfs_connector_add(connector);
	354	if (err)
	355	goto err_connector;
	356
adb6b159 ID	357	exynos_connector->encoder_id = encoder->base.id;
adb6b159 ID	358	exynos_connector->manager = manager;
50caf25c	359	exynos_connector->dpms = DRM_MODE_DPMS_OFF;
44c91697	360	connector->dpms = DRM_MODE_DPMS_OFF;
1c248b7d	361	connector->encoder = encoder;
adb6b159	362
1c248b7d ID	363	err = drm_mode_connector_attach_encoder(connector, encoder);
	364	if (err) {
	365	DRM_ERROR("failed to attach a connector to a encoder\n");
	366	goto err_sysfs;
	367	}
	368
	369	DRM_DEBUG_KMS("connector has been created\n");
	370
	371	return connector;
	372
	373	err_sysfs:
	374	drm_sysfs_connector_remove(connector);
	375	err_connector:
	376	drm_connector_cleanup(connector);
	377	kfree(exynos_connector);
	378	return NULL;
	379	}