2 * rcar_du_lvdscon.c -- R-Car Display Unit LVDS Connector
4 * Copyright (C) 2013-2014 Renesas Electronics Corporation
6 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
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.
15 #include <drm/drm_crtc.h>
16 #include <drm/drm_crtc_helper.h>
18 #include <video/display_timing.h>
19 #include <video/of_display_timing.h>
20 #include <video/videomode.h>
22 #include "rcar_du_drv.h"
23 #include "rcar_du_encoder.h"
24 #include "rcar_du_kms.h"
25 #include "rcar_du_lvdscon.h"
27 struct rcar_du_lvds_connector {
28 struct rcar_du_connector connector;
30 struct rcar_du_panel_data panel;
33 #define to_rcar_lvds_connector(c) \
34 container_of(c, struct rcar_du_lvds_connector, connector.connector)
36 static int rcar_du_lvds_connector_get_modes(struct drm_connector *connector)
38 struct rcar_du_lvds_connector *lvdscon =
39 to_rcar_lvds_connector(connector);
40 struct drm_display_mode *mode;
42 mode = drm_mode_create(connector->dev);
46 mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
48 drm_display_mode_from_videomode(&lvdscon->panel.mode, mode);
50 drm_mode_probed_add(connector, mode);
55 static int rcar_du_lvds_connector_mode_valid(struct drm_connector *connector,
56 struct drm_display_mode *mode)
61 static const struct drm_connector_helper_funcs connector_helper_funcs = {
62 .get_modes = rcar_du_lvds_connector_get_modes,
63 .mode_valid = rcar_du_lvds_connector_mode_valid,
64 .best_encoder = rcar_du_connector_best_encoder,
67 static void rcar_du_lvds_connector_destroy(struct drm_connector *connector)
69 drm_sysfs_connector_remove(connector);
70 drm_connector_cleanup(connector);
73 static enum drm_connector_status
74 rcar_du_lvds_connector_detect(struct drm_connector *connector, bool force)
76 return connector_status_connected;
79 static const struct drm_connector_funcs connector_funcs = {
80 .dpms = drm_helper_connector_dpms,
81 .detect = rcar_du_lvds_connector_detect,
82 .fill_modes = drm_helper_probe_single_connector_modes,
83 .destroy = rcar_du_lvds_connector_destroy,
86 int rcar_du_lvds_connector_init(struct rcar_du_device *rcdu,
87 struct rcar_du_encoder *renc,
88 const struct rcar_du_panel_data *panel,
89 /* TODO const */ struct device_node *np)
91 struct rcar_du_lvds_connector *lvdscon;
92 struct drm_connector *connector;
95 lvdscon = devm_kzalloc(rcdu->dev, sizeof(*lvdscon), GFP_KERNEL);
100 lvdscon->panel = *panel;
102 struct display_timing timing;
104 ret = of_get_display_timing(np, "panel-timing", &timing);
108 videomode_from_timing(&timing, &lvdscon->panel.mode);
110 of_property_read_u32(np, "width-mm", &lvdscon->panel.width_mm);
111 of_property_read_u32(np, "height-mm", &lvdscon->panel.height_mm);
114 connector = &lvdscon->connector.connector;
115 connector->display_info.width_mm = lvdscon->panel.width_mm;
116 connector->display_info.height_mm = lvdscon->panel.height_mm;
118 ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
119 DRM_MODE_CONNECTOR_LVDS);
123 drm_connector_helper_add(connector, &connector_helper_funcs);
124 ret = drm_sysfs_connector_add(connector);
128 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
129 drm_object_property_set_value(&connector->base,
130 rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
132 ret = drm_mode_connector_attach_encoder(connector, &renc->encoder);
136 connector->encoder = &renc->encoder;
137 lvdscon->connector.encoder = renc;