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drm/bridge: lt8912b: return EPROBE_DEFER if bridge is not found

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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@vger.kernel.org>
Fixes: 30e2ae943c ("drm/bridge: Introduce LT8912B DSI to HDMI bridge")
Signed-off-by: Matheus Castello <matheus.castello@toradex.com>
Signed-off-by: Francesco Dolcini <francesco.dolcini@toradex.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230322143821.109744-1-francesco@dolcini.it
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Matheus Castello
2023-03-22 15:38:21 +01:00
committed by Greg Kroah-Hartman
parent 5bb105cc72
commit 071a69cde1
1 changed files with 2 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/gpu/drm/bridge/lontium-lt8912b.c
View File

@@ -670,8 +670,8 @@ 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;
ret = -EPROBE_DEFER;
dev_err_probe(lt->dev, ret, "%s: Failed to get hdmi port\n", __func__);
goto err_free_host_node;
}