[PATCH 3/4] drm: panel-lvds: Spout an error if of_get_display_timing() gives an error

[Douglas Anderson]

In the patch ("video: of: display_timing: Don't yell if no timing node
is present") we'll stop spouting an error directly in
of_get_display_timing() if no node is present.  Presumably panel-lvds
should take charge of spouting its own error now.

NOTE: we'll print two errors if the node was present but there were
problems parsing the timing node (one in of_parse_display_timing() and
this new one).  Since this is a fatal error for the driver's probe
(and presumably someone will be debugging), this should be OK.

Signed-off-by: Douglas Anderson <dianders at chromium.org>
---

 drivers/gpu/drm/panel/panel-lvds.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-lvds.c b/drivers/gpu/drm/panel/panel-lvds.c
index 1ec57d0806a8..ad47cc95459e 100644
--- a/drivers/gpu/drm/panel/panel-lvds.c
+++ b/drivers/gpu/drm/panel/panel-lvds.c
@@ -147,8 +147,11 @@ static int panel_lvds_parse_dt(struct panel_lvds *lvds)
 	int ret;
 
 	ret = of_get_display_timing(np, "panel-timing", &timing);
-	if (ret < 0)
+	if (ret < 0) {
+		dev_err(lvds->dev, "%pOF: problems parsing panel-timing (%d)\n",
+			np, ret);
 		return ret;
+	}
 
 	videomode_from_timing(&timing, &lvds->video_mode);
 
-- 
2.22.0.657.g960e92d24f-goog