1/*
 2 * rcar_du_vgacon.c  --  R-Car Display Unit VGA Connector
 3 *
 4 * Copyright (C) 2013 Renesas Corporation
 5 *
 6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
 7 *
 8 * This program is free software; you can redistribute it and/or modify
 9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
14#include <drm/drmP.h>
15#include <drm/drm_crtc.h>
16#include <drm/drm_crtc_helper.h>
17
18#include "rcar_du_drv.h"
19#include "rcar_du_encoder.h"
20#include "rcar_du_kms.h"
21#include "rcar_du_vgacon.h"
22
23static int rcar_du_vga_connector_get_modes(struct drm_connector *connector)
24{
25	return 0;
26}
27
28static int rcar_du_vga_connector_mode_valid(struct drm_connector *connector,
29					    struct drm_display_mode *mode)
30{
31	return MODE_OK;
32}
33
34static const struct drm_connector_helper_funcs connector_helper_funcs = {
35	.get_modes = rcar_du_vga_connector_get_modes,
36	.mode_valid = rcar_du_vga_connector_mode_valid,
37	.best_encoder = rcar_du_connector_best_encoder,
38};
39
40static void rcar_du_vga_connector_destroy(struct drm_connector *connector)
41{
42	drm_sysfs_connector_remove(connector);
43	drm_connector_cleanup(connector);
44}
45
46static enum drm_connector_status
47rcar_du_vga_connector_detect(struct drm_connector *connector, bool force)
48{
49	return connector_status_connected;
50}
51
52static const struct drm_connector_funcs connector_funcs = {
53	.dpms = drm_helper_connector_dpms,
54	.detect = rcar_du_vga_connector_detect,
55	.fill_modes = drm_helper_probe_single_connector_modes,
56	.destroy = rcar_du_vga_connector_destroy,
57};
58
59int rcar_du_vga_connector_init(struct rcar_du_device *rcdu,
60			       struct rcar_du_encoder *renc)
61{
62	struct rcar_du_connector *rcon;
63	struct drm_connector *connector;
64	int ret;
65
66	rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL);
67	if (rcon == NULL)
68		return -ENOMEM;
69
70	connector = &rcon->connector;
71	connector->display_info.width_mm = 0;
72	connector->display_info.height_mm = 0;
73
74	ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
75				 DRM_MODE_CONNECTOR_VGA);
76	if (ret < 0)
77		return ret;
78
79	drm_connector_helper_add(connector, &connector_helper_funcs);
80	ret = drm_sysfs_connector_add(connector);
81	if (ret < 0)
82		return ret;
83
84	drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
85	drm_object_property_set_value(&connector->base,
86		rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
87
88	ret = drm_mode_connector_attach_encoder(connector, &renc->encoder);
89	if (ret < 0)
90		return ret;
91
92	connector->encoder = &renc->encoder;
93	rcon->encoder = renc;
94
95	return 0;
96}