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authorLucas Stach <l.stach@pengutronix.de>2017-07-10 14:41:25 +0200
committerArchit Taneja <architt@codeaurora.org>2017-07-28 09:28:28 +0530
commitd630213f2a47933e1037909273a20023ba3e598d (patch)
tree3b000517de2b8c8de03cef80c5c310d2b6d25664 /drivers/gpu/drm/bridge
parentgpu: host1x: Free the IOMMU domain when there is no device to attach (diff)
downloadlinux-dev-d630213f2a47933e1037909273a20023ba3e598d.tar.xz
linux-dev-d630213f2a47933e1037909273a20023ba3e598d.zip
drm/bridge: tc358767: fix probe without attached output node
The output node of the TC358767 is only used if another bridge is chained behind it. Panels attached to the TC358767 can be detected using the usual DP AUX probing. This restores the old behavior of ignoring the output if no endpoint is found. Fixes: ebc944613567 (drm: convert drivers to use drm_of_find_panel_or_bridge) CC: stable@vger.kernel.org Acked-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com> Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Archit Taneja <architt@codeaurora.org> Link: https://patchwork.freedesktop.org/patch/msgid/20170710124125.9019-1-l.stach@pengutronix.de
Diffstat (limited to 'drivers/gpu/drm/bridge')
-rw-r--r--drivers/gpu/drm/bridge/tc358767.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/bridge/tc358767.c b/drivers/gpu/drm/bridge/tc358767.c
index 5c26488e7a2d..0529e500c534 100644
--- a/drivers/gpu/drm/bridge/tc358767.c
+++ b/drivers/gpu/drm/bridge/tc358767.c
@@ -1255,7 +1255,7 @@ static int tc_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* port@2 is the output port */
ret = drm_of_find_panel_or_bridge(dev->of_node, 2, 0, &tc->panel, NULL);
- if (ret)
+ if (ret && ret != -ENODEV)
return ret;
/* Shut down GPIO is optional */