linux-kernel - Re: [PATCH 3/6] dt-bindings: display: add data-enable polarity property

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Message-ID: <139651706.L0sBFfZMDQ@avalon>
Date:   Wed, 05 Sep 2018 10:07:24 +0300
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Stefan Agner <stefan@...er.ch>
Cc:     linus.walleij@...aro.org, airlied@...ux.ie, robh+dt@...nel.org,
        mark.rutland@....com, shawnguo@...nel.org, s.hauer@...gutronix.de,
        p.zabel@...gutronix.de, kernel@...gutronix.de,
        fabio.estevam@....com, linux-imx@....com, architt@...eaurora.org,
        a.hajda@...sung.com, gustavo@...ovan.org,
        maarten.lankhorst@...ux.intel.com, sean@...rly.run,
        marcel.ziswiler@...adex.com, max.krummenacher@...adex.com,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/6] dt-bindings: display: add data-enable polarity property

Hi Stefan,

Thank you for the patch.

On Wednesday, 5 September 2018 08:21:10 EEST Stefan Agner wrote:
> Allow to specify the data-enable polarity required by a dumb VGA
> DAC converting parallel RGB to VGA.
> 
> Signed-off-by: Stefan Agner <stefan@...er.ch>
> ---
>  .../devicetree/bindings/display/bridge/dumb-vga-dac.txt          | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git
> a/Documentation/devicetree/bindings/display/bridge/dumb-vga-dac.txt
> b/Documentation/devicetree/bindings/display/bridge/dumb-vga-dac.txt index
> 164cbb15f04c..adbd2ca0af2f 100644
> --- a/Documentation/devicetree/bindings/display/bridge/dumb-vga-dac.txt
> +++ b/Documentation/devicetree/bindings/display/bridge/dumb-vga-dac.txt
> @@ -18,6 +18,7 @@ graph bindings specified in
> Documentation/devicetree/bindings/graph.txt.
> 
>  Optional properties:
>  - vdd-supply: Power supply for DAC
> +- de-active: data-enable pulse is active low/high/ignored

Which value corresponds to low, high and ignored ?

>  Example
>  -------

-- 
Regards,

Laurent Pinchart