linux-kernel - Re: [v3 1/2] dt/bindings: display: Add optional property node for Mali DP500

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Date:   Fri, 16 Aug 2019 14:09:16 -0600
From:   Rob Herring <robh+dt@...nel.org>
To:     Wen He <wen.he_1@....com>
Cc:     linux-devel@...ux.nxdi.nxp.com, Liviu Dudau <liviu.dudau@....com>,
        Brian Starkey <brian.starkey@....com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Mark Rutland <mark.rutland@....com>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        devicetree@...r.kernel.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Yang-Leo Li <leoyang.li@....com>
Subject: Re: [v3 1/2] dt/bindings: display: Add optional property node for
 Mali DP500

On Fri, Aug 16, 2019 at 4:14 AM Wen He <wen.he_1@....com> wrote:
>
> Add optional property node 'arm,malidp-arqos-value' for the Mali DP500.
> This property describe the ARQoS levels of DP500's QoS signaling.
>
> Signed-off-by: Wen He <wen.he_1@....com>
> ---
> change in v3:
>         - correction the describe of the node
>
>  Documentation/devicetree/bindings/display/arm,malidp.txt | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/display/arm,malidp.txt b/Documentation/devicetree/bindings/display/arm,malidp.txt
> index 2f7870983ef1..1f711d32f235 100644
> --- a/Documentation/devicetree/bindings/display/arm,malidp.txt
> +++ b/Documentation/devicetree/bindings/display/arm,malidp.txt
> @@ -37,6 +37,8 @@ Optional properties:
>      Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt)
>      to be used for the framebuffer; if not present, the framebuffer may
>      be located anywhere in memory.
> +  - arm,malidp-arqos-high-level: phandle to describing the ARQoS levels of DP500's
> +    QoS signaling.

The driver is reading a u32... Did you test this?


>
>
>  Example:
> @@ -54,6 +56,7 @@ Example:
>                 clocks = <&oscclk2>, <&fpgaosc0>, <&fpgaosc1>, <&fpgaosc1>;
>                 clock-names = "pxlclk", "mclk", "aclk", "pclk";
>                 arm,malidp-output-port-lines = /bits/ 8 <8 8 8>;
> +               arm,malidp-arqos-high-level = <&rqosvalue>;
>                 port {
>                         dp0_output: endpoint {
>                                 remote-endpoint = <&tda998x_2_input>;
> --
> 2.17.1
>