linux-kernel - Re: [v7, PATCH 4/7] dt-bindings: mediatek: add rdma_fifo

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Message-ID: <b3f97fc8-d95e-8245-1178-9a70353d379c@gmail.com>
Date:   Thu, 23 Jul 2020 17:41:36 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Yongqiang Niu <yongqiang.niu@...iatek.com>,
        CK Hu <ck.hu@...iatek.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>
Cc:     David Airlie <airlied@...ux.ie>, Daniel Vetter <daniel@...ll.ch>,
        Mark Rutland <mark.rutland@....com>,
        dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: Re: [v7, PATCH 4/7] dt-bindings: mediatek: add rdma_fifo_size
 description for mt8183 display



On 23/07/2020 04:03, Yongqiang Niu wrote:
> Update device tree binding document for rdma_fifo_size
> 

Please explain better what you are doing in the patch.
Also DT binding patches should normally go as the first of a series, as this 
helps Rob to review them.

Regards,
Matthias

> Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
> ---
>   .../devicetree/bindings/display/mediatek/mediatek,disp.txt | 14 ++++++++++++++
>   1 file changed, 14 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> index b91e709..e6bbe32 100644
> --- a/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> +++ b/Documentation/devicetree/bindings/display/mediatek/mediatek,disp.txt
> @@ -66,6 +66,11 @@ 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.
> +
>   Examples:
>   
>   mmsys: clock-controller@...00000 {
> @@ -207,3 +212,12 @@ od@...23000 {
>   	power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
>   	clocks = <&mmsys CLK_MM_DISP_OD>;
>   };
> +
> +rdma1: rdma@...0c000 {
> +	compatible = "mediatek,mt8183-disp-rdma";
> +	reg = <0 0x1400c000 0 0x1000>;
> +	interrupts = <GIC_SPI 229 IRQ_TYPE_LEVEL_LOW>;
> +	power-domains = <&scpsys MT8183_POWER_DOMAIN_DISP>;
> +	clocks = <&mmsys CLK_MM_DISP_RDMA1>;
> +	mediatek,rdma_fifo_size = <2048>;
> +};
>