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drm/imx: use for_each_endpoint_of_node macro in imx_drm_encoder_get_mux_id 

Using the for_each_... macro should make the code bit shorter and
easier to read. This patch also properly decrements the endpoint node
reference count before returning out of the loop.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Philipp Zabel 2014-07-03 23:07:49 +02:00
parent 7416f4e33b
commit 539bb6a248
1 changed files with 4 additions and 7 deletions
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11
drivers/gpu/drm/imx/imx-drm-core.c
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@ -439,7 +439,7 @@ int imx_drm_encoder_get_mux_id(struct device_node *node,
struct drm_encoder *encoder)
{
struct imx_drm_crtc *imx_crtc = imx_drm_find_crtc(encoder->crtc);
struct device_node *ep = NULL;
struct device_node *ep;
struct of_endpoint endpoint;
struct device_node *port;
int ret;
@ -447,18 +447,15 @@ int imx_drm_encoder_get_mux_id(struct device_node *node,
if (!node || !imx_crtc)
return -EINVAL;
do {
ep = of_graph_get_next_endpoint(node, ep);
if (!ep)
break;
for_each_endpoint_of_node(node, ep) {
port = of_graph_get_remote_port(ep);
of_node_put(port);
if (port == imx_crtc->crtc->port) {
ret = of_graph_parse_endpoint(ep, &endpoint);
of_node_put(ep);
return ret ? ret : endpoint.port;
}
} while (ep);
}
return -EINVAL;
}