Re: [PATCH v6 12/22] dt-bindings: sun6i-dsi: Add VCC-DSI supply property

Maxime Ripard
2019-01-25T15:47:42Z

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On Fri, Jan 25, 2019 at 01:28:50AM +0530, Jagan Teki wrote:
> Most of the Allwinner MIPI DSI controllers are supply with
> VCC-DSI pin. which need to supply for some of the boards to
> trigger the power.
>
> So, document the supply property so-that the required board
> can eable it via device tree.
>
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
> Reviewed-by: Rob Herring <robh@kernel.org>
> ---
> Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt b/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt
> index 6a6cf5de08b0..69e233e8fad1 100644
> --- a/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt
> +++ b/Documentation/devicetree/bindings/display/sunxi/sun6i-dsi.txt
> @@ -27,6 +27,9 @@ Required properties:
> first port should be the input endpoint, usually coming from the
> associated TCON.
>
> +Optional properties:
> + - vcc-dsi-supply: the VCC-DSI power supply of the DSI encoder
> +

It looks like the VCC power rail is found on all the Allwinner SoCs,
so it should be made mandatory.

Maxime

--
Maxime Ripard, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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