[GitHub/mt8127/android_kernel_alcatel_ttab.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>
 *
 * 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
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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.
 */

#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 MAX_EDID 256
#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;
};

/* 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;
	unsigned int count;

	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) {
		int ret;
		void *edid;

		edid = kzalloc(MAX_EDID, GFP_KERNEL);
		if (!edid) {
			DRM_ERROR("failed to allocate edid\n");
			return 0;
		}

		ret = display_ops->get_edid(manager->dev, connector,
						edid, MAX_EDID);
		if (ret < 0) {
			DRM_ERROR("failed to get edid data.\n");
			kfree(edid);
			edid = NULL;
			return 0;
		}

		drm_mode_connector_update_edid_property(connector, edid);
		count = drm_add_edid_modes(connector, edid);

		kfree(connector->display_info.raw_edid);
		connector->display_info.raw_edid = edid;
	} else {
		struct drm_display_mode *mode = drm_mode_create(connector->dev);
		struct exynos_drm_panel_info *panel;

		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;
	}

	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;
}

static 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,
};

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		= drm_helper_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;
	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	*
	8	* Permission is hereby granted, free of charge, to any person obtaining a
	9	* copy of this software and associated documentation files (the "Software"),
	10	* to deal in the Software without restriction, including without limitation
	11	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	12	* and/or sell copies of the Software, and to permit persons to whom the
	13	* Software is furnished to do so, subject to the following conditions:
	14	*
	15	* The above copyright notice and this permission notice (including the next
	16	* paragraph) shall be included in all copies or substantial portions of the
	17	* Software.
	18	*
	19	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	20	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	21	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	22	* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
	23	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	24	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	25	* OTHER DEALINGS IN THE SOFTWARE.
	26	*/
	27
760285e7 DH	28	#include <drm/drmP.h>
760285e7 DH	29	#include <drm/drm_crtc_helper.h>
1c248b7d	30
607c50d4	31	#include <drm/exynos_drm.h>
1c248b7d ID	32	#include "exynos_drm_drv.h"
	33	#include "exynos_drm_encoder.h"
	34
	35	#define MAX_EDID 256
	36	#define to_exynos_connector(x) container_of(x, struct exynos_drm_connector,\
	37	drm_connector)
	38
	39	struct exynos_drm_connector {
	40	struct drm_connector drm_connector;
adb6b159 ID	41	uint32_t encoder_id;
adb6b159 ID	42	struct exynos_drm_manager *manager;
1c248b7d ID	43	};
	44
	45	/* convert exynos_video_timings to drm_display_mode */
	46	static inline void
	47	convert_to_display_mode(struct drm_display_mode *mode,
607c50d4	48	struct exynos_drm_panel_info *panel)
1c248b7d	49	{
607c50d4	50	struct fb_videomode *timing = &panel->timing;
1c248b7d ID	51	DRM_DEBUG_KMS("%s\n", __FILE__);
	52
	53	mode->clock = timing->pixclock / 1000;
8b58dfe0	54	mode->vrefresh = timing->refresh;
1c248b7d ID	55
1c248b7d ID	56	mode->hdisplay = timing->xres;
f7d86075	57	mode->hsync_start = mode->hdisplay + timing->right_margin;
1c248b7d	58	mode->hsync_end = mode->hsync_start + timing->hsync_len;
f7d86075	59	mode->htotal = mode->hsync_end + timing->left_margin;
1c248b7d ID	60
1c248b7d ID	61	mode->vdisplay = timing->yres;
f7d86075	62	mode->vsync_start = mode->vdisplay + timing->lower_margin;
1c248b7d	63	mode->vsync_end = mode->vsync_start + timing->vsync_len;
f7d86075	64	mode->vtotal = mode->vsync_end + timing->upper_margin;
607c50d4 ECK	65	mode->width_mm = panel->width_mm;
607c50d4 ECK	66	mode->height_mm = panel->height_mm;
8b58dfe0 SWK	67
	68	if (timing->vmode & FB_VMODE_INTERLACED)
	69	mode->flags \|= DRM_MODE_FLAG_INTERLACE;
	70
	71	if (timing->vmode & FB_VMODE_DOUBLE)
	72	mode->flags \|= DRM_MODE_FLAG_DBLSCAN;
1c248b7d ID	73	}
	74
	75	/* convert drm_display_mode to exynos_video_timings */
	76	static inline void
	77	convert_to_video_timing(struct fb_videomode *timing,
	78	struct drm_display_mode *mode)
	79	{
	80	DRM_DEBUG_KMS("%s\n", __FILE__);
	81
	82	memset(timing, 0, sizeof(*timing));
	83
	84	timing->pixclock = mode->clock * 1000;
8b58dfe0	85	timing->refresh = drm_mode_vrefresh(mode);
1c248b7d ID	86
1c248b7d ID	87	timing->xres = mode->hdisplay;
f7d86075	88	timing->right_margin = mode->hsync_start - mode->hdisplay;
1c248b7d	89	timing->hsync_len = mode->hsync_end - mode->hsync_start;
f7d86075	90	timing->left_margin = mode->htotal - mode->hsync_end;
1c248b7d ID	91
1c248b7d ID	92	timing->yres = mode->vdisplay;
f7d86075	93	timing->lower_margin = mode->vsync_start - mode->vdisplay;
1c248b7d	94	timing->vsync_len = mode->vsync_end - mode->vsync_start;
f7d86075	95	timing->upper_margin = mode->vtotal - mode->vsync_end;
1c248b7d ID	96
	97	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
	98	timing->vmode = FB_VMODE_INTERLACED;
	99	else
	100	timing->vmode = FB_VMODE_NONINTERLACED;
	101
	102	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
	103	timing->vmode \|= FB_VMODE_DOUBLE;
	104	}
	105
	106	static int exynos_drm_connector_get_modes(struct drm_connector *connector)
	107	{
adb6b159 ID	108	struct exynos_drm_connector *exynos_connector =
	109	to_exynos_connector(connector);
	110	struct exynos_drm_manager *manager = exynos_connector->manager;
74ccc539	111	struct exynos_drm_display_ops *display_ops = manager->display_ops;
1c248b7d ID	112	unsigned int count;
	113
	114	DRM_DEBUG_KMS("%s\n", __FILE__);
	115
74ccc539 ID	116	if (!display_ops) {
74ccc539 ID	117	DRM_DEBUG_KMS("display_ops is null.\n");
1c248b7d ID	118	return 0;
	119	}
	120
	121	/*
	122	* if get_edid() exists then get_edid() callback of hdmi side
	123	* is called to get edid data through i2c interface else
	124	* get timing from the FIMD driver(display controller).
	125	*
	126	* P.S. in case of lcd panel, count is always 1 if success
	127	* because lcd panel has only one mode.
	128	*/
74ccc539	129	if (display_ops->get_edid) {
1c248b7d ID	130	int ret;
	131	void *edid;
	132
	133	edid = kzalloc(MAX_EDID, GFP_KERNEL);
	134	if (!edid) {
	135	DRM_ERROR("failed to allocate edid\n");
	136	return 0;
	137	}
	138
74ccc539	139	ret = display_ops->get_edid(manager->dev, connector,
1c248b7d ID	140	edid, MAX_EDID);
	141	if (ret < 0) {
	142	DRM_ERROR("failed to get edid data.\n");
	143	kfree(edid);
	144	edid = NULL;
	145	return 0;
	146	}
	147
	148	drm_mode_connector_update_edid_property(connector, edid);
	149	count = drm_add_edid_modes(connector, edid);
	150
	151	kfree(connector->display_info.raw_edid);
	152	connector->display_info.raw_edid = edid;
	153	} else {
	154	struct drm_display_mode *mode = drm_mode_create(connector->dev);
607c50d4	155	struct exynos_drm_panel_info *panel;
1c248b7d	156
607c50d4 ECK	157	if (display_ops->get_panel)
607c50d4 ECK	158	panel = display_ops->get_panel(manager->dev);
1c248b7d ID	159	else {
	160	drm_mode_destroy(connector->dev, mode);
	161	return 0;
	162	}
	163
607c50d4 ECK	164	convert_to_display_mode(mode, panel);
	165	connector->display_info.width_mm = mode->width_mm;
	166	connector->display_info.height_mm = mode->height_mm;
1c248b7d ID	167
	168	mode->type = DRM_MODE_TYPE_DRIVER \| DRM_MODE_TYPE_PREFERRED;
	169	drm_mode_set_name(mode);
	170	drm_mode_probed_add(connector, mode);
	171
	172	count = 1;
	173	}
	174
	175	return count;
	176	}
	177
	178	static int exynos_drm_connector_mode_valid(struct drm_connector *connector,
	179	struct drm_display_mode *mode)
	180	{
adb6b159 ID	181	struct exynos_drm_connector *exynos_connector =
	182	to_exynos_connector(connector);
	183	struct exynos_drm_manager *manager = exynos_connector->manager;
74ccc539	184	struct exynos_drm_display_ops *display_ops = manager->display_ops;
1c248b7d ID	185	struct fb_videomode timing;
	186	int ret = MODE_BAD;
	187
	188	DRM_DEBUG_KMS("%s\n", __FILE__);
	189
	190	convert_to_video_timing(&timing, mode);
	191
74ccc539 ID	192	if (display_ops && display_ops->check_timing)
74ccc539 ID	193	if (!display_ops->check_timing(manager->dev, (void *)&timing))
1c248b7d ID	194	ret = MODE_OK;
	195
	196	return ret;
	197	}
	198
2fb16de3 SK	199	static struct drm_encoder *exynos_drm_best_encoder(
2fb16de3 SK	200	struct drm_connector *connector)
1c248b7d	201	{
adb6b159 ID	202	struct drm_device *dev = connector->dev;
	203	struct exynos_drm_connector *exynos_connector =
	204	to_exynos_connector(connector);
	205	struct drm_mode_object *obj;
	206	struct drm_encoder *encoder;
	207
1c248b7d ID	208	DRM_DEBUG_KMS("%s\n", __FILE__);
1c248b7d ID	209
adb6b159 ID	210	obj = drm_mode_object_find(dev, exynos_connector->encoder_id,
	211	DRM_MODE_OBJECT_ENCODER);
	212	if (!obj) {
	213	DRM_DEBUG_KMS("Unknown ENCODER ID %d\n",
	214	exynos_connector->encoder_id);
	215	return NULL;
	216	}
	217
	218	encoder = obj_to_encoder(obj);
	219
	220	return encoder;
1c248b7d ID	221	}
	222
	223	static struct drm_connector_helper_funcs exynos_connector_helper_funcs = {
	224	.get_modes = exynos_drm_connector_get_modes,
	225	.mode_valid = exynos_drm_connector_mode_valid,
	226	.best_encoder = exynos_drm_best_encoder,
	227	};
	228
1de425b0 ID	229	static int exynos_drm_connector_fill_modes(struct drm_connector *connector,
	230	unsigned int max_width, unsigned int max_height)
	231	{
	232	struct exynos_drm_connector *exynos_connector =
	233	to_exynos_connector(connector);
	234	struct exynos_drm_manager *manager = exynos_connector->manager;
	235	struct exynos_drm_manager_ops *ops = manager->ops;
	236	unsigned int width, height;
	237
	238	width = max_width;
	239	height = max_height;
	240
	241	/*
	242	* if specific driver want to find desired_mode using maxmum
	243	* resolution then get max width and height from that driver.
	244	*/
	245	if (ops && ops->get_max_resol)
	246	ops->get_max_resol(manager->dev, &width, &height);
	247
	248	return drm_helper_probe_single_connector_modes(connector, width,
	249	height);
	250	}
	251
1c248b7d ID	252	/* get detection status of display device. */
	253	static enum drm_connector_status
	254	exynos_drm_connector_detect(struct drm_connector *connector, bool force)
	255	{
adb6b159 ID	256	struct exynos_drm_connector *exynos_connector =
	257	to_exynos_connector(connector);
	258	struct exynos_drm_manager *manager = exynos_connector->manager;
74ccc539 ID	259	struct exynos_drm_display_ops *display_ops =
74ccc539 ID	260	manager->display_ops;
1c248b7d ID	261	enum drm_connector_status status = connector_status_disconnected;
	262
	263	DRM_DEBUG_KMS("%s\n", __FILE__);
	264
74ccc539 ID	265	if (display_ops && display_ops->is_connected) {
74ccc539 ID	266	if (display_ops->is_connected(manager->dev))
1c248b7d ID	267	status = connector_status_connected;
	268	else
	269	status = connector_status_disconnected;
	270	}
	271
	272	return status;
	273	}
	274
	275	static void exynos_drm_connector_destroy(struct drm_connector *connector)
	276	{
	277	struct exynos_drm_connector *exynos_connector =
	278	to_exynos_connector(connector);
	279
	280	DRM_DEBUG_KMS("%s\n", __FILE__);
	281
	282	drm_sysfs_connector_remove(connector);
	283	drm_connector_cleanup(connector);
	284	kfree(exynos_connector);
	285	}
	286
	287	static struct drm_connector_funcs exynos_connector_funcs = {
	288	.dpms = drm_helper_connector_dpms,
1de425b0	289	.fill_modes = exynos_drm_connector_fill_modes,
1c248b7d ID	290	.detect = exynos_drm_connector_detect,
	291	.destroy = exynos_drm_connector_destroy,
	292	};
	293
	294	struct drm_connector exynos_drm_connector_create(struct drm_device dev,
	295	struct drm_encoder *encoder)
	296	{
	297	struct exynos_drm_connector *exynos_connector;
	298	struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder);
	299	struct drm_connector *connector;
	300	int type;
	301	int err;
	302
	303	DRM_DEBUG_KMS("%s\n", __FILE__);
	304
	305	exynos_connector = kzalloc(sizeof(*exynos_connector), GFP_KERNEL);
	306	if (!exynos_connector) {
	307	DRM_ERROR("failed to allocate connector\n");
	308	return NULL;
	309	}
	310
	311	connector = &exynos_connector->drm_connector;
	312
74ccc539	313	switch (manager->display_ops->type) {
1c248b7d ID	314	case EXYNOS_DISPLAY_TYPE_HDMI:
1c248b7d ID	315	type = DRM_MODE_CONNECTOR_HDMIA;
1b17b206 SWK	316	connector->interlace_allowed = true;
1b17b206 SWK	317	connector->polled = DRM_CONNECTOR_POLL_HPD;
1c248b7d	318	break;
b73d1230 ID	319	case EXYNOS_DISPLAY_TYPE_VIDI:
	320	type = DRM_MODE_CONNECTOR_VIRTUAL;
	321	connector->polled = DRM_CONNECTOR_POLL_HPD;
	322	break;
1c248b7d ID	323	default:
	324	type = DRM_MODE_CONNECTOR_Unknown;
	325	break;
	326	}
	327
	328	drm_connector_init(dev, connector, &exynos_connector_funcs, type);
	329	drm_connector_helper_add(connector, &exynos_connector_helper_funcs);
	330
	331	err = drm_sysfs_connector_add(connector);
	332	if (err)
	333	goto err_connector;
	334
adb6b159 ID	335	exynos_connector->encoder_id = encoder->base.id;
adb6b159 ID	336	exynos_connector->manager = manager;
1c248b7d	337	connector->encoder = encoder;
adb6b159	338
1c248b7d ID	339	err = drm_mode_connector_attach_encoder(connector, encoder);
	340	if (err) {
	341	DRM_ERROR("failed to attach a connector to a encoder\n");
	342	goto err_sysfs;
	343	}
	344
	345	DRM_DEBUG_KMS("connector has been created\n");
	346
	347	return connector;
	348
	349	err_sysfs:
	350	drm_sysfs_connector_remove(connector);
	351	err_connector:
	352	drm_connector_cleanup(connector);
	353	kfree(exynos_connector);
	354	return NULL;
	355	}