/* initialize bridge */
struct drm_bridge *hdmi_bridge_init(struct hdmi *hdmi)
{
struct drm_bridge *bridge = NULL;
struct hdmi_bridge *hdmi_bridge;
int ret;
hdmi_bridge = kzalloc(sizeof(*hdmi_bridge), GFP_KERNEL);
if (!hdmi_bridge) {
ret = -ENOMEM;
goto fail;
}
hdmi_bridge->hdmi = hdmi_reference(hdmi);
bridge = &hdmi_bridge->base;
drm_bridge_init(hdmi->dev, bridge, &hdmi_bridge_funcs);
return bridge;
fail:
if (bridge)
hdmi_bridge_destroy(bridge);
return ERR_PTR(ret);
}
/* initialize connector */
struct drm_connector *hdmi_connector_init(struct hdmi *hdmi)
{
struct drm_connector *connector = NULL;
struct hdmi_connector *hdmi_connector;
int ret;
hdmi_connector = kzalloc(sizeof(*hdmi_connector), GFP_KERNEL);
if (!hdmi_connector) {
ret = -ENOMEM;
goto fail;
}
hdmi_connector->hdmi = hdmi_reference(hdmi);
INIT_WORK(&hdmi_connector->hpd_work, hotplug_work);
connector = &hdmi_connector->base;
drm_connector_init(hdmi->dev, connector, &hdmi_connector_funcs,
DRM_MODE_CONNECTOR_HDMIA);
drm_connector_helper_add(connector, &hdmi_connector_helper_funcs);
connector->polled = DRM_CONNECTOR_POLL_CONNECT |
DRM_CONNECTOR_POLL_DISCONNECT;
connector->interlace_allowed = 1;
connector->doublescan_allowed = 0;
drm_sysfs_connector_add(connector);
ret = hpd_enable(hdmi_connector);
if (ret) {
dev_err(hdmi->dev->dev, "failed to enable HPD: %d\n", ret);
goto fail;
}
drm_mode_connector_attach_encoder(connector, hdmi->encoder);
return connector;
fail:
if (connector)
hdmi_connector_destroy(connector);
return ERR_PTR(ret);
}