[PATCH v1] drm/bridge: lt8912b: return EPROBE_DEFER if bridge is not found

Francesco Dolcini francesco at dolcini.it
Wed Mar 22 14:03:09 UTC 2023


From: Matheus Castello <matheus.castello at toradex.com>

Returns EPROBE_DEFER when of_drm_find_bridge() fails, this is consistent
with what all the other DRM bridge drivers are doing and this is
required since the bridge might not be there when the driver is probed
and this should not be a fatal failure.

Cc: <stable at vger.kernel.org>
Fixes: 30e2ae943c26 ("drm/bridge: Introduce LT8912B DSI to HDMI bridge")
Signed-off-by: Matheus Castello <matheus.castello at toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini at toradex.com>
---
 drivers/gpu/drm/bridge/lontium-lt8912b.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/lontium-lt8912b.c b/drivers/gpu/drm/bridge/lontium-lt8912b.c
index 2019a8167d69..fec02e47cfdb 100644
--- a/drivers/gpu/drm/bridge/lontium-lt8912b.c
+++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c
@@ -676,8 +676,8 @@ static int lt8912_parse_dt(struct lt8912 *lt)
 
 	lt->hdmi_port = of_drm_find_bridge(port_node);
 	if (!lt->hdmi_port) {
-		dev_err(lt->dev, "%s: Failed to get hdmi port\n", __func__);
-		ret = -ENODEV;
+		dev_dbg(lt->dev, "%s: Failed to get hdmi port\n", __func__);
+		ret = -EPROBE_DEFER;
 		goto err_free_host_node;
 	}
 
-- 
2.25.1



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