2 * R-Car Display Unit HDMI Connector
4 * Copyright (C) 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>
17 #include <drm/drm_encoder_slave.h>
19 #include "rcar_du_drv.h"
20 #include "rcar_du_encoder.h"
21 #include "rcar_du_hdmicon.h"
22 #include "rcar_du_kms.h"
24 #define to_slave_funcs(e) (to_rcar_encoder(e)->slave.slave_funcs)
26 static int rcar_du_hdmi_connector_get_modes(struct drm_connector *connector)
28 struct rcar_du_connector *con = to_rcar_connector(connector);
29 struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(con->encoder);
30 struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
32 if (sfuncs->get_modes == NULL)
35 return sfuncs->get_modes(encoder, connector);
38 static int rcar_du_hdmi_connector_mode_valid(struct drm_connector *connector,
39 struct drm_display_mode *mode)
41 struct rcar_du_connector *con = to_rcar_connector(connector);
42 struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(con->encoder);
43 struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
45 if (sfuncs->mode_valid == NULL)
48 return sfuncs->mode_valid(encoder, mode);
51 static const struct drm_connector_helper_funcs connector_helper_funcs = {
52 .get_modes = rcar_du_hdmi_connector_get_modes,
53 .mode_valid = rcar_du_hdmi_connector_mode_valid,
54 .best_encoder = rcar_du_connector_best_encoder,
57 static void rcar_du_hdmi_connector_destroy(struct drm_connector *connector)
59 drm_connector_unregister(connector);
60 drm_connector_cleanup(connector);
63 static enum drm_connector_status
64 rcar_du_hdmi_connector_detect(struct drm_connector *connector, bool force)
66 struct rcar_du_connector *con = to_rcar_connector(connector);
67 struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(con->encoder);
68 struct drm_encoder_slave_funcs *sfuncs = to_slave_funcs(encoder);
70 if (sfuncs->detect == NULL)
71 return connector_status_unknown;
73 return sfuncs->detect(encoder, connector);
76 static const struct drm_connector_funcs connector_funcs = {
77 .dpms = drm_helper_connector_dpms,
78 .detect = rcar_du_hdmi_connector_detect,
79 .fill_modes = drm_helper_probe_single_connector_modes,
80 .destroy = rcar_du_hdmi_connector_destroy,
83 int rcar_du_hdmi_connector_init(struct rcar_du_device *rcdu,
84 struct rcar_du_encoder *renc)
86 struct drm_encoder *encoder = rcar_encoder_to_drm_encoder(renc);
87 struct rcar_du_connector *rcon;
88 struct drm_connector *connector;
91 rcon = devm_kzalloc(rcdu->dev, sizeof(*rcon), GFP_KERNEL);
95 connector = &rcon->connector;
96 connector->display_info.width_mm = 0;
97 connector->display_info.height_mm = 0;
98 connector->interlace_allowed = true;
100 ret = drm_connector_init(rcdu->ddev, connector, &connector_funcs,
101 DRM_MODE_CONNECTOR_HDMIA);
105 drm_connector_helper_add(connector, &connector_helper_funcs);
106 ret = drm_connector_register(connector);
110 drm_helper_connector_dpms(connector, DRM_MODE_DPMS_OFF);
111 drm_object_property_set_value(&connector->base,
112 rcdu->ddev->mode_config.dpms_property, DRM_MODE_DPMS_OFF);
114 ret = drm_mode_connector_attach_encoder(connector, encoder);
118 connector->encoder = encoder;
119 rcon->encoder = renc;