This is a note to let you know that I've just added the patch titled
drm/bridge: lt8912b: return EPROBE_DEFER if bridge is not found
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-bridge-lt8912b-return-eprobe_defer-if-bridge-is-not-found.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 1a70ca89d59c7c8af006d29b965a95ede0abb0da Mon Sep 17 00:00:00 2001
From: Matheus Castello <matheus.castello@xxxxxxxxxxx>
Date: Wed, 22 Mar 2023 15:38:21 +0100
Subject: drm/bridge: lt8912b: return EPROBE_DEFER if bridge is not found
From: Matheus Castello <matheus.castello@xxxxxxxxxxx>
commit 1a70ca89d59c7c8af006d29b965a95ede0abb0da upstream.
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@xxxxxxxxxxxxxxx>
Fixes: 30e2ae943c26 ("drm/bridge: Introduce LT8912B DSI to HDMI bridge")
Signed-off-by: Matheus Castello <matheus.castello@xxxxxxxxxxx>
Signed-off-by: Francesco Dolcini <francesco.dolcini@xxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Reviewed-by: Andrzej Hajda <andrzej.hajda@xxxxxxxxx>
Signed-off-by: Neil Armstrong <neil.armstrong@xxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20230322143821.109744-1-francesco@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/bridge/lontium-lt8912b.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/bridge/lontium-lt8912b.c
+++ b/drivers/gpu/drm/bridge/lontium-lt8912b.c
@@ -659,8 +659,8 @@ static int lt8912_parse_dt(struct lt8912
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;
+ ret = -EPROBE_DEFER;
+ dev_err_probe(lt->dev, ret, "%s: Failed to get hdmi port\n", __func__);
goto err_free_host_node;
}
Patches currently in stable-queue which might be from matheus.castello@xxxxxxxxxxx are
queue-6.1/drm-bridge-lt8912b-return-eprobe_defer-if-bridge-is-not-found.patch
