Re: [PATCH v2 1/2] dt-bindings/display/bridge: sii902x: add optional power supplies

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Hi Philippe,

Thank you for the patch.

On Wednesday, 25 April 2018 10:53:13 EEST Philippe Cornu wrote:
> Add optional power supplies using the description found in
> "SiI9022A/SiI9024A HDMI Transmitter Data Sheet (August 2016)".
> 
> There is a single 1v2 supply voltage named vcc12 from which cvcc12
> (digital core) and avcc12 (TMDS analog) are derived because according
> to this data sheet:
> "cvcc12 and avcc12 can be derived from the same power source"

Shouldn't the power supplies be mandatory, as explained by Mark in https://
lists.freedesktop.org/archives/dri-devel/2018-April/172400.html ?

> Signed-off-by: Philippe Cornu <philippe.cornu@xxxxxx>
> ---
>  Documentation/devicetree/bindings/display/bridge/sii902x.txt | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/bridge/sii902x.txt
> b/Documentation/devicetree/bindings/display/bridge/sii902x.txt index
> 56a3e68ccb80..9fb41fc9af51 100644
> --- a/Documentation/devicetree/bindings/display/bridge/sii902x.txt
> +++ b/Documentation/devicetree/bindings/display/bridge/sii902x.txt
> @@ -8,6 +8,8 @@ Optional properties:
>  	- interrupts-extended or interrupt-parent + interrupts: describe
>  	  the interrupt line used to inform the host about hotplug events.
>  	- reset-gpios: OF device-tree gpio specification for RST_N pin.
> +	- iovcc-supply: I/O supply voltage (1.8V or 3.3V, host-dependent).
> +	- vcc12-supply: TMDS analog & digital core supply voltage (1.2V).
> 
>  Optional subnodes:
>  	- video input: this subnode can contain a video input port node

-- 
Regards,

Laurent Pinchart



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