lkml.org 
[lkml]   [2020]   [Apr]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 2/3] dt-bindings: drm/bridge: ti-sn65dsi86: Add hpd-gpios to the bindings
From
Date
Quoting Douglas Anderson (2020-04-15 08:48:40)
> Allow people to specify to use a GPIO for hot-plug-detect. Add an
> example.
>
> NOTE: The current patch adding support for hpd-gpios to the Linux
> driver for hpd-gpios only adds enough support to the driver so that
> the bridge can use one of its own GPIOs. The bindings, however, are
> written generically.
>
> Signed-off-by: Douglas Anderson <dianders@chromium.org>
> ---
>
> .../bindings/display/bridge/ti,sn65dsi86.yaml | 10 +++++++++-
> 1 file changed, 9 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
> index 8cacc6db33a9..554bfd003000 100644
> --- a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
> +++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi86.yaml
> @@ -60,6 +60,10 @@ properties:
> const: 1
> description: See ../../pwm/pwm.yaml for description of the cell formats.
>
> + hpd-gpios:
> + maxItems: 1
> + description: If present use the given GPIO for hot-plug-detect.

Shouldn't this go in the panel node? And the panel driver should get the
gpio and poll it after powering up the panel? Presumably that's why we
have the no-hpd property in the simple panel binding vs. putting it here
in the bridge.

\
 
 \ /
  Last update: 2020-04-15 21:54    [W:0.086 / U:0.144 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site