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drm/imx: parallel-display: use of_graph_get_endpoint_by_regs helper 

Instead of using of_graph_get_port_by_id() to get the port and then
of_get_child_by_name() to get the first endpoint, get to the endpoint
in a single step.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
This commit is contained in:
Philipp Zabel 2016-05-03 14:39:29 +02:00
parent 620011e047
commit 3a1c117f8b
1 changed files with 11 additions and 11 deletions
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22
drivers/gpu/drm/imx/parallel-display.c
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@ -203,7 +203,7 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data)
{
struct drm_device *drm = data;
struct device_node *np = dev->of_node;
struct device_node *port;
struct device_node *ep;
const u8 *edidp;
struct imx_parallel_display *imxpd;
int ret;
@ -230,18 +230,18 @@ static int imx_pd_bind(struct device *dev, struct device *master, void *data)
}
/* port@1 is the output port */
port = of_graph_get_port_by_id(np, 1);
if (port) {
struct device_node *endpoint, *remote;
ep = of_graph_get_endpoint_by_regs(np, 1, -1);
if (ep) {
struct device_node *remote;
endpoint = of_get_child_by_name(port, "endpoint");
if (endpoint) {
remote = of_graph_get_remote_port_parent(endpoint);
if (remote)
imxpd->panel = of_drm_find_panel(remote);
if (!imxpd->panel)
return -EPROBE_DEFER;
remote = of_graph_get_remote_port_parent(ep);
of_node_put(ep);
if (remote) {
imxpd->panel = of_drm_find_panel(remote);
of_node_put(remote);
}
if (!imxpd->panel)
return -EPROBE_DEFER;
}
imxpd->dev = dev;