linux-kernel - Re: [PATCH] ARM: dts: rockchip: enable DMA on SPI for rk3066 and rk3188

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Date:	Sat, 11 Oct 2014 20:24:27 +0200
From:	Heiko Stübner <heiko@...ech.de>
To:	Julien CHAUVEAU <julien.chauveau@...-technologies.fr>
Cc:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	"moderated list:ARM/Rockchip SoC..." 
	<linux-arm-kernel@...ts.infradead.org>,
	"open list:ARM/Rockchip SoC..." <linux-rockchip@...ts.infradead.org>,
	"open list:OPEN FIRMWARE AND..." <devicetree@...r.kernel.org>,
	open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] ARM: dts: rockchip: enable DMA on SPI for rk3066 and rk3188

Hi Julien,

Am Freitag, 10. Oktober 2014, 10:04:13 schrieb Julien CHAUVEAU:
> According to the RK3066 and RK3188 TRM, the two SPI controllers support DMA
> handshake interface. Add the DMA properties so they can be used when needed.
> 
> Signed-off-by: Julien CHAUVEAU <julien.chauveau@...-technologies.fr>

added the patch to a temporary branch for 3.19
(on github and will move to kernel.org once 3.18-rc1 is released)


Heiko

> ---
>  arch/arm/boot/dts/rk3xxx.dtsi | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/rk3xxx.dtsi b/arch/arm/boot/dts/rk3xxx.dtsi
> index 499468d..9ba92de 100644
> --- a/arch/arm/boot/dts/rk3xxx.dtsi
> +++ b/arch/arm/boot/dts/rk3xxx.dtsi
> @@ -367,6 +367,8 @@
>  		reg = <0x20070000 0x1000>;
>  		#address-cells = <1>;
>  		#size-cells = <0>;
> +		dmas = <&dmac2 10>, <&dmac2 11>;
> +		dma-names = "tx", "rx";
>  		status = "disabled";
>  	};
> 
> @@ -378,6 +380,8 @@
>  		reg = <0x20074000 0x1000>;
>  		#address-cells = <1>;
>  		#size-cells = <0>;
> +		dmas = <&dmac2 12>, <&dmac2 13>;
> +		dma-names = "tx", "rx";
>  		status = "disabled";
>  	};
>  };

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