linux-kernel - Re: [PATCH v2 1/4] dt-bindings: k3dma: add optional property hisilicon,dma-min-chan

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Message-ID: <20180709103438.GC22377@vkoul-mobl>
Date:   Mon, 9 Jul 2018 16:04:38 +0530
From:   Vinod <vkoul@...nel.org>
To:     Guodong Xu <guodong.xu@...aro.org>
Cc:     robh+dt@...nel.org, mark.rutland@....com, dan.j.williams@...el.com,
        xuwei5@...ilicon.com, catalin.marinas@....com, will.deacon@....com,
        liyu65@...ilicon.com, suzhuangluan@...ilicon.com,
        xuhongtao8@...ilicon.com, zhongkaihua@...wei.com,
        xuezhiliang@...ilicon.com, xupeng7@...wei.com,
        sunliang10@...wei.com, fengbaopeng@...ilicon.com,
        dmaengine@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 1/4] dt-bindings: k3dma: add optional property
 hisilicon,dma-min-chan

On 06-07-18, 11:55, Guodong Xu wrote:
> From: Li Yu <liyu65@...ilicon.com>
> 
> Add optional property hisilicon,dma-min-chan for k3dma.
> 
> Signed-off-by: Li Yu <liyu65@...ilicon.com>
> Signed-off-by: Guodong Xu <guodong.xu@...aro.org>
> ---
>  Documentation/devicetree/bindings/dma/k3dma.txt | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/dma/k3dma.txt b/Documentation/devicetree/bindings/dma/k3dma.txt
> index 4945aeac4dc4..f34202a80f3c 100644
> --- a/Documentation/devicetree/bindings/dma/k3dma.txt
> +++ b/Documentation/devicetree/bindings/dma/k3dma.txt
> @@ -12,6 +12,11 @@ Required properties:
>  		have specific request line
>  - clocks: clock required
>  
> +Optional properties:
> +- hisilicon,dma-min-chan: the minimum DMA channel number which is usable
> +		Default value is 0, but in some platform it is
> +		configured 1, like in hi3660 platform
> +
>  Example:
>  
>  Controller:
> @@ -21,6 +26,7 @@ Controller:
>  			#dma-cells = <1>;
>  			dma-channels = <16>;
>  			dma-requests = <27>;
> +			hisilicon,dma-min-chan = <1>;

Am still expecting this to be a mask

-- 
~Vinod