/* 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 = devm_kzalloc(hdmi->dev->dev,
sizeof(*hdmi_bridge), GFP_KERNEL);
if (!hdmi_bridge) {
ret = -ENOMEM;
goto fail;
}
hdmi_bridge->hdmi = hdmi;
bridge = &hdmi_bridge->base;
bridge->funcs = &hdmi_bridge_funcs;
ret = drm_bridge_attach(hdmi->dev, bridge);
if (ret)
goto fail;
return bridge;
fail:
if (bridge)
hdmi_bridge_destroy(bridge);
return ERR_PTR(ret);
}
/* 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);
}
/* Second part of initialization, the drm/kms level modeset_init,
* constructs/initializes mode objects, etc, is called from master
* driver (not hdmi sub-device's probe/bind!)
*
* Any resource (regulator/clk/etc) which could be missing at boot
* should be handled in hdmi_init() so that failure happens from
* hdmi sub-device's probe.
*/
int hdmi_modeset_init(struct hdmi *hdmi,
struct drm_device *dev, struct drm_encoder *encoder)
{
struct msm_drm_private *priv = dev->dev_private;
struct platform_device *pdev = hdmi->pdev;
int ret;
hdmi->dev = dev;
hdmi->encoder = encoder;
hdmi_audio_infoframe_init(&hdmi->audio.infoframe);
hdmi->bridge = hdmi_bridge_init(hdmi);
if (IS_ERR(hdmi->bridge)) {
ret = PTR_ERR(hdmi->bridge);
dev_err(dev->dev, "failed to create HDMI bridge: %d\n", ret);
hdmi->bridge = NULL;
goto fail;
}
hdmi->connector = hdmi_connector_init(hdmi);
if (IS_ERR(hdmi->connector)) {
ret = PTR_ERR(hdmi->connector);
dev_err(dev->dev, "failed to create HDMI connector: %d\n", ret);
hdmi->connector = NULL;
goto fail;
}
hdmi->irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
if (hdmi->irq < 0) {
ret = hdmi->irq;
dev_err(dev->dev, "failed to get irq: %d\n", ret);
goto fail;
}
ret = devm_request_irq(&pdev->dev, hdmi->irq,
hdmi_irq, IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
"hdmi_isr", hdmi);
if (ret < 0) {
dev_err(dev->dev, "failed to request IRQ%u: %d\n",
hdmi->irq, ret);
goto fail;
}
encoder->bridge = hdmi->bridge;
priv->bridges[priv->num_bridges++] = hdmi->bridge;
priv->connectors[priv->num_connectors++] = hdmi->connector;
platform_set_drvdata(pdev, hdmi);
return 0;
fail:
/* bridge is normally destroyed by drm: */
if (hdmi->bridge) {
hdmi_bridge_destroy(hdmi->bridge);
hdmi->bridge = NULL;
}
if (hdmi->connector) {
hdmi->connector->funcs->destroy(hdmi->connector);
hdmi->connector = NULL;
}
return ret;
}
