diff options
| author | Philipp Zabel <p.zabel@pengutronix.de> | 2017-06-12 17:54:29 +0200 |
|---|---|---|
| committer | Philipp Zabel <p.zabel@pengutronix.de> | 2017-07-17 15:57:52 +0200 |
| commit | 799ee2970485dc206c3bf347d6e6827c04d5e4f9 (patch) | |
| tree | ceb84f15db7da9d53f0983ef1e39215705f9c3a4 | |
| parent | f2ad99fc46d5454e097692c8c8202fd5bc46c809 (diff) | |
drm/imx: parallel-display: Accept drm_of_find_panel_or_bridge failure
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.yoush@cogentembedded.com>
Fixes: ebc944613567 ("drm: convert drivers to use drm_of_find_panel_or_bridge")
Tested-by: Chris Healy <cphealy@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
| -rw-r--r-- | drivers/gpu/drm/imx/parallel-display.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c index 636031a30e17..8aca20209cb8 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; |