linux-kernel - Re: [PATCH] dt-bindings: dma: snps,dw-axi-dmac: Document optional reset

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Message-ID: <28be175a-8e9b-937a-de35-bcc218006fe9@opensource.wdc.com>
Date:   Fri, 26 Nov 2021 09:01:28 +0900
From:   Damien Le Moal <damien.lemoal@...nsource.wdc.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Eugeniy Paltsev <Eugeniy.Paltsev@...opsys.com>,
        Vinod Koul <vkoul@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Heng Sia <jee.heng.sia@...el.com>
Cc:     "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-riscv@...ts.infradead.org" <linux-riscv@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] dt-bindings: dma: snps,dw-axi-dmac: Document optional
 reset

On 2021/11/26 0:20, Geert Uytterhoeven wrote:
> "make dtbs_check":
> 
>     Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
>     arch/riscv/boot/dts/canaan/sipeed_maix_bit.dt.yaml: dma-controller@...00000: 'resets' does not match any of the regexes: 'pinctrl-[0-9]+'
> 	    From schema: Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
> 
> The Synopsys DesignWare AXI DMA Controller on the Canaan K210 SoC
> exposes its reset signal.
> 
> Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
> ---
>  Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
> index 90d9274e5464e396..06ddffaada295171 100644
> --- a/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
> +++ b/Documentation/devicetree/bindings/dma/snps,dw-axi-dmac.yaml
> @@ -53,6 +53,9 @@ properties:
>      minimum: 1
>      maximum: 8
>  
> +  resets:
> +    maxItems: 1
> +
>    snps,dma-masters:
>      description: |
>        Number of AXI masters supported by the hardware.
> 

Looks good to me.

Reviewed-by: Damien Le Moal <damien.lemoal@...nsource.wdc.com>

-- 
Damien Le Moal
Western Digital Research