linux-kernel - Re: [PATCH v14 4/6] dt-bindings: soc: mediatek: add gce-client-reg for MUTEX

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Message-ID: <Yjj8eoXmsYRRvb1I@robh.at.kernel.org>
Date:   Mon, 21 Mar 2022 17:30:18 -0500
From:   Rob Herring <robh@...nel.org>
To:     Moudy Ho <moudy.ho@...iatek.com>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Hans Verkuil <hverkuil-cisco@...all.nl>,
        Jernej Skrabec <jernej.skrabec@...l.net>,
        Chun-Kuang Hu <chunkuang.hu@...nel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Rob Landley <rob@...dley.net>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Alexandre Courbot <acourbot@...omium.org>, tfiga@...omium.org,
        drinkcat@...omium.org, pihsun@...omium.org, hsinyi@...gle.com,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>,
        Maoguang Meng <maoguang.meng@...iatek.com>,
        daoyuan huang <daoyuan.huang@...iatek.com>,
        Ping-Hsun Wu <ping-hsun.wu@...iatek.com>,
        menghui.lin@...iatek.com, sj.huang@...iatek.com,
        allen-kh.cheng@...iatek.com, randy.wu@...iatek.com,
        jason-jh.lin@...iatek.com, roy-cw.yeh@...iatek.com,
        river.cheng@...iatek.com, srv_heupstream@...iatek.com,
        Project_Global_Chrome_Upstream_Group@...iatek.com
Subject: Re: [PATCH v14 4/6] dt-bindings: soc: mediatek: add gce-client-reg
 for MUTEX

On Thu, Mar 17, 2022 at 10:39:24PM +0800, Moudy Ho wrote:
> In order to allow modules with latency requirements such as MDP3
> to set registers through CMDQ, add the relevant GCE property.
> 
> Signed-off-by: Moudy Ho <moudy.ho@...iatek.com>
> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
> Reviewed-by: CK Hu <ck.hu@...iatek.com>
> ---
>  .../devicetree/bindings/soc/mediatek/mediatek,mutex.yaml  | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml
> index f825af49f820..a4892979480c 100644
> --- a/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml
> +++ b/Documentation/devicetree/bindings/soc/mediatek/mediatek,mutex.yaml
> @@ -60,6 +60,14 @@ properties:
>        include/dt-bindings/gce/<chip>-gce.h of each chips.
>      $ref: /schemas/types.yaml#/definitions/phandle-array
>  
> +  mediatek,gce-client-reg:
> +    description: The register of client driver can be configured by gce with
> +      4 arguments defined in this property, such as phandle of gce, subsys id,
> +      register offset and size. Each GCE subsys id is mapping to a client
> +      defined in the header include/dt-bindings/gce/<chip>-gce.h.
> +    $ref: /schemas/types.yaml#/definitions/phandle-array
> +    maxItems: 1

items:
  items:
    - description: phandle of GCE
    - description: GCE subsys id
    - description: register offset
    - description: register size

> +
>  required:
>    - compatible
>    - reg
> -- 
> 2.18.0
> 
>