The probe function needs to get ahold of the panel device tree
node, and it achieves that by using a combination of
of_graph_get_port_by_id, of_get_child_by_name, and
of_graph_get_remote_port_parent. We can achieve the same goal
by replacing those calls with a call to of_graph_get_remote_node
these days.
Signed-off-by: Fabrizio Castro <fabrizio.cas...@bp.renesas.com>
---
v3->v4:
* New patch
---
drivers/gpu/drm/bridge/lvds-codec.c | 20 ++------------------
1 file changed, 2 insertions(+), 18 deletions(-)
diff --git a/drivers/gpu/drm/bridge/lvds-codec.c
b/drivers/gpu/drm/bridge/lvds-codec.c
index c32e125..784bbd3 100644
--- a/drivers/gpu/drm/bridge/lvds-codec.c
+++ b/drivers/gpu/drm/bridge/lvds-codec.c
@@ -57,8 +57,6 @@ static struct drm_bridge_funcs funcs = {
static int lvds_codec_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
- struct device_node *port;
- struct device_node *endpoint;
struct device_node *panel_node;
struct drm_panel *panel;
struct lvds_codec *lvds_codec;
@@ -79,23 +77,9 @@ static int lvds_codec_probe(struct platform_device *pdev)
}
/* Locate the panel DT node. */
- port = of_graph_get_port_by_id(dev->of_node, 1);
- if (!port) {
- dev_dbg(dev, "port 1 not found\n");
- return -ENXIO;
- }
-
- endpoint = of_get_child_by_name(port, "endpoint");
- of_node_put(port);
- if (!endpoint) {
- dev_dbg(dev, "no endpoint for port 1\n");
- return -ENXIO;
- }
-
- panel_node = of_graph_get_remote_port_parent(endpoint);
- of_node_put(endpoint);
+ panel_node = of_graph_get_remote_node(dev->of_node, 1, 0);
if (!panel_node) {
- dev_dbg(dev, "no remote endpoint for port 1\n");
+ dev_dbg(dev, "panel DT node not found\n");
return -ENXIO;
}
--
2.7.4
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