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drm/fsl-dcu: add support for drm bridge 

The current output code only supports connection to drm panels.
Add code to support drm bridge, to support connections to
external connectors.

Signed-off-by: Meng Yi <meng.yi@nxp.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>
This commit is contained in:
Meng Yi 2016-07-15 14:53:38 +08:00 committed by Stefan Agner
parent 924591b1f2
commit c4a304d3b1
1 changed files with 13 additions and 3 deletions
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16
drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c
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@ -180,16 +180,26 @@ static int fsl_dcu_attach_panel(struct fsl_dcu_drm_device *fsl_dev,
static int fsl_dcu_attach_endpoint(struct fsl_dcu_drm_device *fsl_dev,
const struct of_endpoint *ep)
{
struct drm_bridge *bridge;
struct device_node *np;
np = of_graph_get_remote_port_parent(ep->local_node);
fsl_dev->connector.panel = of_drm_find_panel(np);
of_node_put(np);
if (fsl_dev->connector.panel)
if (fsl_dev->connector.panel) {
of_node_put(np);
return fsl_dcu_attach_panel(fsl_dev, fsl_dev->connector.panel);
}
return -ENODEV;
bridge = of_drm_find_bridge(np);
of_node_put(np);
if (!bridge)
return -ENODEV;
fsl_dev->encoder.bridge = bridge;
bridge->encoder = &fsl_dev->encoder;
return drm_bridge_attach(fsl_dev->drm, bridge);
}
int fsl_dcu_create_outputs(struct fsl_dcu_drm_device *fsl_dev)