static int mdp4_modeset_init_intf(struct mdp4_kms *mdp4_kms,
int intf_type)
{
struct drm_device *dev = mdp4_kms->dev;
struct msm_drm_private *priv = dev->dev_private;
struct drm_encoder *encoder;
struct drm_connector *connector;
struct device_node *panel_node;
int dsi_id;
int ret;
switch (intf_type) {
case DRM_MODE_ENCODER_LVDS:
/*
* bail out early if there is no panel node (no need to
* initialize LCDC encoder and LVDS connector)
*/
panel_node = of_graph_get_remote_node(dev->dev->of_node, 0, 0);
if (!panel_node)
return 0;
encoder = mdp4_lcdc_encoder_init(dev, panel_node);
if (IS_ERR(encoder)) {
dev_err(dev->dev, "failed to construct LCDC encoder\n");
return PTR_ERR(encoder);
}
/* LCDC can be hooked to DMA_P (TODO: Add DMA_S later?) */
encoder->possible_crtcs = 1 << DMA_P;
connector = mdp4_lvds_connector_init(dev, panel_node, encoder);
if (IS_ERR(connector)) {
dev_err(dev->dev, "failed to initialize LVDS connector\n");
return PTR_ERR(connector);
}
priv->encoders[priv->num_encoders++] = encoder;
priv->connectors[priv->num_connectors++] = connector;
break;
case DRM_MODE_ENCODER_TMDS:
encoder = mdp4_dtv_encoder_init(dev);
if (IS_ERR(encoder)) {
dev_err(dev->dev, "failed to construct DTV encoder\n");
return PTR_ERR(encoder);
}
/* DTV can be hooked to DMA_E: */
encoder->possible_crtcs = 1 << 1;
if (priv->hdmi) {
/* Construct bridge/connector for HDMI: */
ret = msm_hdmi_modeset_init(priv->hdmi, dev, encoder);
if (ret) {
dev_err(dev->dev, "failed to initialize HDMI: %d\n", ret);
return ret;
}
}
priv->encoders[priv->num_encoders++] = encoder;
break;
case DRM_MODE_ENCODER_DSI:
/* only DSI1 supported for now */
dsi_id = 0;
if (!priv->dsi[dsi_id])
break;
encoder = mdp4_dsi_encoder_init(dev);
if (IS_ERR(encoder)) {
ret = PTR_ERR(encoder);
dev_err(dev->dev,
"failed to construct DSI encoder: %d\n", ret);
return ret;
}
/* TODO: Add DMA_S later? */
encoder->possible_crtcs = 1 << DMA_P;
priv->encoders[priv->num_encoders++] = encoder;
ret = msm_dsi_modeset_init(priv->dsi[dsi_id], dev, encoder);
if (ret) {
dev_err(dev->dev, "failed to initialize DSI: %d\n",
ret);
return ret;
}
break;
default:
dev_err(dev->dev, "Invalid or unsupported interface\n");
return -EINVAL;
}
return 0;
}
static int modeset_init(struct mdp4_kms *mdp4_kms)
{
struct drm_device *dev = mdp4_kms->dev;
struct msm_drm_private *priv = dev->dev_private;
struct drm_plane *plane;
struct drm_crtc *crtc;
struct drm_encoder *encoder;
struct hdmi *hdmi;
int ret;
/*
* NOTE: this is a bit simplistic until we add support
* for more than just RGB1->DMA_E->DTV->HDMI
*/
/* construct non-private planes: */
plane = mdp4_plane_init(dev, VG1, false);
if (IS_ERR(plane)) {
dev_err(dev->dev, "failed to construct plane for VG1\n");
ret = PTR_ERR(plane);
goto fail;
}
priv->planes[priv->num_planes++] = plane;
plane = mdp4_plane_init(dev, VG2, false);
if (IS_ERR(plane)) {
dev_err(dev->dev, "failed to construct plane for VG2\n");
ret = PTR_ERR(plane);
goto fail;
}
priv->planes[priv->num_planes++] = plane;
/* the CRTCs get constructed with a private plane: */
plane = mdp4_plane_init(dev, RGB1, true);
if (IS_ERR(plane)) {
dev_err(dev->dev, "failed to construct plane for RGB1\n");
ret = PTR_ERR(plane);
goto fail;
}
crtc = mdp4_crtc_init(dev, plane, priv->num_crtcs, 1, DMA_E);
if (IS_ERR(crtc)) {
dev_err(dev->dev, "failed to construct crtc for DMA_E\n");
ret = PTR_ERR(crtc);
goto fail;
}
priv->crtcs[priv->num_crtcs++] = crtc;
encoder = mdp4_dtv_encoder_init(dev);
if (IS_ERR(encoder)) {
dev_err(dev->dev, "failed to construct DTV encoder\n");
ret = PTR_ERR(encoder);
goto fail;
}
encoder->possible_crtcs = 0x1; /* DTV can be hooked to DMA_E */
priv->encoders[priv->num_encoders++] = encoder;
hdmi = hdmi_init(dev, encoder);
if (IS_ERR(hdmi)) {
ret = PTR_ERR(hdmi);
dev_err(dev->dev, "failed to initialize HDMI: %d\n", ret);
goto fail;
}
return 0;
fail:
return ret;
}
