The parallel panel driver should continue to work without having an
endpoint linking to an panel in DT for backwards compatibility.
With the recent switch to drm_of_find_panel_or_bridge, an absent
panel results in a failure with -ENODEV error return code. To restore
the old behaviour, ignore the -ENODEV return code.
Reported-by: Nikita Yushchenko <nikita.yo...@cogentembedded.com>
Fixes: ebc944613567 ("drm: convert drivers to use drm_of_find_panel_or_bridge")
Signed-off-by: Philipp Zabel <p.za...@pengutronix.de>
---
drivers/gpu/drm/imx/parallel-display.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/imx/parallel-display.c
b/drivers/gpu/drm/imx/parallel-display.c
index 636031a30e17d..8aca20209cb80 100644
--- a/drivers/gpu/drm/imx/parallel-display.c
+++ b/drivers/gpu/drm/imx/parallel-display.c
@@ -237,7 +237,7 @@ static int imx_pd_bind(struct device *dev, struct device
*master, void *data)
/* port@1 is the output port */
ret = drm_of_find_panel_or_bridge(np, 1, 0, &imxpd->panel,
&imxpd->bridge);
- if (ret)
+ if (ret && ret != -ENODEV)
return ret;
imxpd->dev = dev;
--
2.11.0
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