1/*
 2 * rcar_du_vgacon.c  --  R-Car Display Unit VGA Connector
 3 *
 4 * Copyright (C) 2013-2014 Renesas Electronics 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_atomic_helper.h>
16#include <drm/drm_crtc.h>
17#include <drm/drm_crtc_helper.h>
18
19#include "rcar_du_drv.h"
20#include "rcar_du_encoder.h"
21#include "rcar_du_kms.h"
22#include "rcar_du_vgacon.h"
23
24static int rcar_du_vga_connector_get_modes(struct drm_connector *connector)
25{
26	return 0;
27}
28
29static const struct drm_connector_helper_funcs connector_helper_funcs = {
30	.get_modes = rcar_du_vga_connector_get_modes,
31	.best_encoder = rcar_du_connector_best_encoder,
32};
33
34static enum drm_connector_status
35rcar_du_vga_connector_detect(struct drm_connector *connector, bool force)
36{
37	return connector_status_connected;
38}
39
40static const struct drm_connector_funcs connector_funcs = {
41	.dpms = drm_atomic_helper_connector_dpms,
42	.reset = drm_atomic_helper_connector_reset,
43	.detect = rcar_du_vga_connector_detect,
44	.fill_modes = drm_helper_probe_single_connector_modes,
45	.destroy = drm_connector_cleanup,
46	.atomic_duplicate_state = drm_atomic_helper_connector_duplicate_state,
47	.atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
48};
49
50int rcar_du_vga_connector_init(struct rcar_du_device *rcdu,
51			       struct rcar_du_encoder *renc)
52{
53	struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(renc);
54	struct rcar_du_connector *rcon;
55	struct drm_connector *connector;
56	int ret;
57
58	rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL);
59	if (rcon == NULL)
60		return -ENOMEM;
61
62	connector = &rcon->connector;
63	connector->display_info.width_mm = 0;
64	connector->display_info.height_mm = 0;
65	connector->interlace_allowed = true;
66
67	ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
68				 DRM_MODE_CONNECTOR_VGA);
69	if (ret < 0)
70		return ret;
71
72	drm_connector_helper_add(connector, &connector_helper_funcs);
73
74	connector->dpms = DRM_MODE_DPMS_OFF;
75	drm_object_property_set_value(&connector->base,
76		rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
77
78	ret = drm_mode_connector_attach_encoder(connector, encoder);
79	if (ret < 0)
80		return ret;
81
82	rcon->encoder = renc;
83
84	return 0;
85}