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

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Date:   Thu, 23 Jul 2020 10:59:50 -0600
From:   Rob Herring <robh@...nel.org>
To:     Yongqiang Niu <yongqiang.niu@...iatek.com>
Cc:     CK Hu <ck.hu@...iatek.com>, Philipp Zabel <p.zabel@...gutronix.de>,
        Matthias Brugger <matthias.bgg@...il.com>,
        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 Thu, Jul 23, 2020 at 10:03:15AM +0800, Yongqiang Niu wrote:
> Update device tree binding document for rdma_fifo_size
> 
> 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

s/_/-/

> +  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>;
> +};
> -- 
> 1.8.1.1.dirty