linux-kernel - Re: [PATCH 1/3] ARM: dts: suniv: f1c100s: Add support for DMA

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Message-ID: <20241209175637.283312fa@donnerap.manchester.arm.com>
Date: Mon, 9 Dec 2024 17:56:37 +0000
From: Andre Przywara <andre.przywara@....com>
To: "Csókás, Bence" <csokas.bence@...lan.hu>
Cc: <devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
 <linux-sunxi@...ts.linux.dev>, <linux-kernel@...r.kernel.org>, Mesih Kilinc
 <mesihkilinc@...il.com>, Rob Herring <robh@...nel.org>, Krzysztof Kozlowski
 <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Chen-Yu Tsai
 <wens@...e.org>, Jernej Skrabec <jernej.skrabec@...il.com>, Samuel Holland
 <samuel@...lland.org>
Subject: Re: [PATCH 1/3] ARM: dts: suniv: f1c100s: Add support for DMA

On Thu, 5 Dec 2024 01:01:36 +0100
"Csókás, Bence" <csokas.bence@...lan.hu> wrote:

> From: Mesih Kilinc <mesihkilinc@...il.com>
> 
> Allwinner suniv F1C100s now has DMA support. Enable it under device
> tree.
> 
> Signed-off-by: Mesih Kilinc <mesihkilinc@...il.com>
> [ csokas.bence: Rebased on current master ]
> Signed-off-by: Csókás, Bence <csokas.bence@...lan.hu>

Compared against the manual:

Reviewed-by: Andre Przywara <andre.przywara@....com>

Cheers,
Andre

> ---
>  arch/arm/boot/dts/allwinner/suniv-f1c100s.dtsi | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/allwinner/suniv-f1c100s.dtsi b/arch/arm/boot/dts/allwinner/suniv-f1c100s.dtsi
> index 3c61d59ab5f8..290efe026ceb 100644
> --- a/arch/arm/boot/dts/allwinner/suniv-f1c100s.dtsi
> +++ b/arch/arm/boot/dts/allwinner/suniv-f1c100s.dtsi
> @@ -6,6 +6,7 @@
>  
>  #include <dt-bindings/clock/suniv-ccu-f1c100s.h>
>  #include <dt-bindings/reset/suniv-ccu-f1c100s.h>
> +#include <dt-bindings/dma/sun4i-a10.h>
>  
>  / {
>  	#address-cells = <1>;
> @@ -159,6 +160,15 @@ usbphy: phy@...3400 {
>  			status = "disabled";
>  		};
>  
> +		dma: dma-controller@...2000 {
> +			compatible = "allwinner,suniv-f1c100s-dma";
> +			reg = <0x01c02000 0x1000>;
> +			interrupts = <18>;
> +			clocks = <&ccu CLK_BUS_DMA>;
> +			resets = <&ccu RST_BUS_DMA>;
> +			#dma-cells = <2>;
> +		};
> +
>  		ccu: clock@...0000 {
>  			compatible = "allwinner,suniv-f1c100s-ccu";
>  			reg = <0x01c20000 0x400>;