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authorLaurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>2024-03-18 17:06:01 +0100
committerNeil Armstrong <neil.armstrong@linaro.org>2024-03-19 16:46:23 +0100
commit974652d7a90be7ae3b24779794a65bfb90980044 (patch)
tree321c2c31fe4a65f4239d1efd3c84f020799ff483
parentdrm: bridge: thc63lvd1024: Switch to use of_graph_get_remote_node() (diff)
downloadlinux-974652d7a90be7ae3b24779794a65bfb90980044.tar.xz
linux-974652d7a90be7ae3b24779794a65bfb90980044.zip
drm: bridge: thc63lvd1024: Print error message when DT parsing fails
Commit 00084f0c01bf ("drm: bridge: thc63lvd1024: Switch to use of_graph_get_remote_node()") simplified the thc63lvd1024 driver by replacing hand-rolled code with a helper function. While doing so, it created an error code path at probe time without any error message, potentially causing probe issues that get annoying to debug. Fix it by adding an error message. Fixes: 00084f0c01bf ("drm: bridge: thc63lvd1024: Switch to use of_graph_get_remote_node()") Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://lore.kernel.org/r/20240318160601.2813-1-laurent.pinchart+renesas@ideasonboard.com Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240318160601.2813-1-laurent.pinchart+renesas@ideasonboard.com
-rw-r--r--drivers/gpu/drm/bridge/thc63lvd1024.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/thc63lvd1024.c b/drivers/gpu/drm/bridge/thc63lvd1024.c
index 5f99f9724081..674efc489e3a 100644
--- a/drivers/gpu/drm/bridge/thc63lvd1024.c
+++ b/drivers/gpu/drm/bridge/thc63lvd1024.c
@@ -125,8 +125,11 @@ static int thc63_parse_dt(struct thc63_dev *thc63)
remote = of_graph_get_remote_node(thc63->dev->of_node,
THC63_RGB_OUT0, -1);
- if (!remote)
+ if (!remote) {
+ dev_err(thc63->dev, "No remote endpoint for port@%u\n",
+ THC63_RGB_OUT0);
return -ENODEV;
+ }
thc63->next = of_drm_find_bridge(remote);
of_node_put(remote);