linux-kernel - Re: [PATCH v9, 01/11] dt-bindings: mediatek: add rdma-fifo-size description for mt8183 display

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Message-ID: <CAAOTY_9FdLrZyKpgAsuJQxORh7uHhjYBn8Acu_1B0vQ0Uv_Nzw@mail.gmail.com>
Date:   Thu, 7 Jan 2021 17:54:17 +0800
From:   Chun-Kuang Hu <chunkuang.hu@...nel.org>
To:     Yongqiang Niu <yongqiang.niu@...iatek.com>
Cc:     CK Hu <ck.hu@...iatek.com>, Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        DTML <devicetree@...r.kernel.org>,
        David Airlie <airlied@...ux.ie>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        DRI Development <dri-devel@...ts.freedesktop.org>,
        Project_Global_Chrome_Upstream_Group@...iatek.com,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>,
        Daniel Vetter <daniel@...ll.ch>,
        Hsin-Yi Wang <hsinyi@...omium.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v9, 01/11] dt-bindings: mediatek: add rdma-fifo-size
 description for mt8183 display

Hi, Yongqiang:

Yongqiang Niu <yongqiang.niu@...iatek.com> 於 2021年1月7日 週四 上午11:11寫道：
>
> rdma fifo size may be different even in same SOC, add this
> property to the corresponding rdma

Reviewed-by: Chun-Kuang Hu <chunkuang.hu@...nel.org>

>
> Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
> ---
>  .../devicetree/bindings/display/mediatek/mediatek,disp.txt       | 9 +++++++++
>  1 file changed, 9 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> index 33977e1..b07881e 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> @@ -66,6 +66,14 @@ Required properties (DMA function blocks):
>    argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
>    for details.
>
> +Optional properties (RDMA function blocks):
> +- mediatek,rdma-fifo-size: rdma fifo size may be different even in same SOC, add this
> +  property to the corresponding rdma
> +  the value is the Max value which defined in hardware data sheet.
> +  mediatek,rdma-fifo-size of mt8173-rdma0 is 8K
> +  mediatek,rdma-fifo-size of mt8183-rdma0 is 5K
> +  mediatek,rdma-fifo-size of mt8183-rdma1 is 2K
> +
>  Examples:
>
>  mmsys: clock-controller@...00000 {
> @@ -103,6 +111,7 @@ rdma0: rdma@...0e000 {
>         clocks = <&mmsys CLK_MM_DISP_RDMA0>;
>         iommus = <&iommu M4U_PORT_DISP_RDMA0>;
>         mediatek,larb = <&larb0>;
> +       mediatek,rdma-fifosize = <8192>;
>  };
>
>  rdma1: rdma@...0f000 {
> --
> 1.8.1.1.dirty
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek

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