linux-kernel - Re: [PATCH v3 5/7] dt-bindings: display: Add common rotation property

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Date:   Wed, 1 Feb 2017 11:41:13 -0600
From:   Rob Herring <robh@...nel.org>
To:     Noralf Trønnes <noralf@...nnes.org>
Cc:     dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        thomas.petazzoni@...e-electrons.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 5/7] dt-bindings: display: Add common rotation property

On Tue, Jan 31, 2017 at 05:03:17PM +0100, Noralf Trønnes wrote:
> Display panels can be oriented many ways, especially in the embedded
> world. The rotation property is a way to describe this orientation.
> The counter clockwise direction is chosen because that's what fbdev
> and drm use.

The h/w mounting is rotated counter clockwise, so the framebuffers' 
contents are rotated clockwise, right? 

> 
> Signed-off-by: Noralf Trønnes <noralf@...nnes.org>
> ---
>  Documentation/devicetree/bindings/display/display.txt | 4 ++++

This is panel property, so bindings/display/panel/panel.txt.

>  1 file changed, 4 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/display/display.txt
> 
> diff --git a/Documentation/devicetree/bindings/display/display.txt b/Documentation/devicetree/bindings/display/display.txt
> new file mode 100644
> index 0000000..e2e6867
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/display/display.txt
> @@ -0,0 +1,4 @@
> +Common display properties
> +-------------------------
> +
> +- rotation:	Display rotation in degrees counter clockwise (0,90,180,270)
> -- 
> 2.10.2
> 
> --
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