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drm: bridge: thc63lvd1024: Switch to use of_graph_get_remote_node()

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To reduce boilerplate, use of_graph_get_remote_node() helper instead of
the hand-rolling code.

Signed-off-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20240316172800.1168390-1-sui.jingfeng@linux.dev
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240316172800.1168390-1-sui.jingfeng@linux.dev
This commit is contained in:
Sui Jingfeng 2024-03-17 01:28:00 +08:00 • committed by Neil Armstrong
parent 2c7d265558
commit 00084f0c01
1 changed files with 3 additions and 21 deletions
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22
drivers/gpu/drm/bridge/thc63lvd1024.c
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@ -123,28 +123,10 @@ static int thc63_parse_dt(struct thc63_dev *thc63)
struct device_node *endpoint;
struct device_node *remote;
endpoint = of_graph_get_endpoint_by_regs(thc63->dev->of_node,
remote = of_graph_get_remote_node(thc63->dev->of_node,
THC63_RGB_OUT0, -1);
if (!endpoint) {
dev_err(thc63->dev, "Missing endpoint in port@%u\n",
THC63_RGB_OUT0);
if (!remote)
return -ENODEV;
}
remote = of_graph_get_remote_port_parent(endpoint);
of_node_put(endpoint);
if (!remote) {
dev_err(thc63->dev, "Endpoint in port@%u unconnected\n",
THC63_RGB_OUT0);
return -ENODEV;
}
if (!of_device_is_available(remote)) {
dev_err(thc63->dev, "port@%u remote endpoint is disabled\n",
THC63_RGB_OUT0);
of_node_put(remote);
return -ENODEV;
}
thc63->next = of_drm_find_bridge(remote);
of_node_put(remote);