Using of_graph_parse_endpoint recovers the port id from an endpoint device
tree node. This just replaces an open coded read of the "reg" property.
Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
---
drivers/staging/imx-drm/imx-drm-core.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index ecfc88b..4144a75 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -501,8 +501,9 @@ int imx_drm_encoder_get_mux_id(struct device_node *node,
{
struct imx_drm_crtc *imx_crtc = imx_drm_find_crtc(encoder->crtc);
struct device_node *ep = NULL;
+ struct of_endpoint endpoint;
struct device_node *port;
- int id, ret;
+ int ret;
if (!node || !imx_crtc)
return -EINVAL;
@@ -515,9 +516,8 @@ int imx_drm_encoder_get_mux_id(struct device_node *node,
port = of_graph_get_remote_port(ep);
of_node_put(port);
if (port == imx_crtc->port) {
- ret = of_property_read_u32(ep->parent, "reg", &id);
- of_node_put(ep);
- return ret ? ret : id;
+ ret = of_graph_parse_endpoint(ep, &endpoint);
+ return ret ? ret : endpoint.id;
}
} while (ep);
--
1.9.0.rc3
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