[PATCH 05/10] dt-bindings: display: Add max-res property for mxsfb

Rob Herring robh at kernel.org
Mon Jul 22 17:48:53 UTC 2019


On Wed, Jun 26, 2019 at 04:32:13PM +0300, Robert Chiras wrote:
> Add new optional property 'max-res', to limit the maximum supported
> resolution by the MXSFB_DRM driver.

Bindings are for h/w description, not driver config.

> 
> Signed-off-by: Robert Chiras <robert.chiras at nxp.com>
> ---
>  Documentation/devicetree/bindings/display/mxsfb.txt | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/mxsfb.txt b/Documentation/devicetree/bindings/display/mxsfb.txt
> index 472e1ea..55e22ed 100644
> --- a/Documentation/devicetree/bindings/display/mxsfb.txt
> +++ b/Documentation/devicetree/bindings/display/mxsfb.txt
> @@ -17,6 +17,12 @@ Required properties:
>  Required sub-nodes:
>    - port: The connection to an encoder chip.
>  
> +Optional properties:
> +- max-res:	an array with a maximum of two integers, representing the
> +		maximum supported resolution, in the form of
> +		<maxX>, <maxY>; if one of the item is <0>, the default
> +		driver-defined maximum resolution for that axis is used

I suppose what you are after is bandwidth limits? IIRC, there's already 
some bindings expressing such limits. Also, wouldn't you need to account 
for bpp and using the 2nd plane (IIRC that there is one).

Rob


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