linux-kernel - Re: [PATCH v2 17/17] MIPS: JZ4740: DTS: Add DMA nodes

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Date:   Thu, 19 Jul 2018 11:03:10 +0300
From:   Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
To:     Paul Cercueil <paul@...pouillou.net>,
        Vinod Koul <vkoul@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>,
        James Hogan <jhogan@...nel.org>,
        Zubair Lutfullah Kakakhel <Zubair.Kakakhel@...tec.com>
Cc:     Mathieu Malaterre <malat@...ian.org>,
        Daniel Silsby <dansilsby@...il.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mips@...ux-mips.org
Subject: Re: [PATCH v2 17/17] MIPS: JZ4740: DTS: Add DMA nodes

On 7/18/2018 9:20 PM, Paul Cercueil wrote:

> Add the devicetree nodes for the DMA core of the JZ4740 SoC, disabled
> by default, as currently there are no clients for the DMA driver
> (until the MMC driver and/or others get a devicetree node).
> 
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>
> Tested-by: Mathieu Malaterre <malat@...ian.org>
> ---
>   arch/mips/boot/dts/ingenic/jz4740.dtsi | 15 +++++++++++++++
>   1 file changed, 15 insertions(+)
> 
>   v2: New patch in this series
> 
> diff --git a/arch/mips/boot/dts/ingenic/jz4740.dtsi b/arch/mips/boot/dts/ingenic/jz4740.dtsi
> index 26c6b561d6f7..47d93f2597af 100644
> --- a/arch/mips/boot/dts/ingenic/jz4740.dtsi
> +++ b/arch/mips/boot/dts/ingenic/jz4740.dtsi
> @@ -154,6 +154,21 @@
>   		clock-names = "baud", "module";
>   	};
>   
> +	dmac: dma@...20000 {

    The node must be named "dma-controller@...20000" according to the DT spec.

[...]

MBR, Sergei