[PATCH] drm/bridge: tc358767: fix probe without attached output node

[Archit Taneja]

On 07/27/2017 06:26 PM, Andrey Gusakov wrote:
> Hi,
> 
> On Mon, Jul 10, 2017 at 3:41 PM, Lucas Stach <l.stach at pengutronix.de 
> <mailto:l.stach at pengutronix.de>> wrote:
> 
>     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 at vger.kernel.org <mailto:stable at vger.kernel.org>
>     Signed-off-by: Lucas Stach <l.stach at pengutronix.de <mailto:l.stach at pengutronix.de>>
> 
> 
> Acked-by: Andrey Gusakov <andrey.gusakov at cogentembedded.com <mailto:andrey.gusakov at cogentembedded.com>>

Thanks, queued to drm-misc-fixes.

Archit

> 
>     ---
>       drivers/gpu/drm/bridge/tc358767.c | 2 +-
>       1 file changed, 1 insertion(+), 1 deletion(-)
> 
>     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 at 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 */
>     --
>     2.11.0
> 
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> 
> 

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