linux-kernel - Re: [PATCH v3 2/2] arm64: dts: mediatek: mt8516: add support for APDMA

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Date:   Sun, 31 Jan 2021 11:24:03 +0100
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Fabien Parent <fparent@...libre.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/2] arm64: dts: mediatek: mt8516: add support for
 APDMA



On 09/12/2020 12:47, Fabien Parent wrote:
> Add support the APDMA IP on MT8516. APDMA is a DMA controller
> for UARTs.
> 
> Signed-off-by: Fabien Parent <fparent@...libre.com>
> ---
> 

Applied to v5.11-next/dts64

Thanks a lot!

> V3: remove unicode symbol that slips into patch summary
> V2: Add missing dma-names properties on uart nodes
> 
>  arch/arm64/boot/dts/mediatek/mt8516.dtsi | 30 ++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/mediatek/mt8516.dtsi b/arch/arm64/boot/dts/mediatek/mt8516.dtsi
> index e6e4d9d60094..b80e95574bef 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8516.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8516.dtsi
> @@ -276,6 +276,27 @@ gic: interrupt-controller@...10000 {
>  				(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
>  		};
>  
> +		apdma: dma-controller@...00480 {
> +			compatible = "mediatek,mt8516-uart-dma",
> +				     "mediatek,mt6577-uart-dma";
> +			reg = <0 0x11000480 0 0x80>,
> +			      <0 0x11000500 0 0x80>,
> +			      <0 0x11000580 0 0x80>,
> +			      <0 0x11000600 0 0x80>,
> +			      <0 0x11000980 0 0x80>,
> +			      <0 0x11000a00 0 0x80>;
> +			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_LOW>,
> +				     <GIC_SPI 97 IRQ_TYPE_LEVEL_LOW>,
> +				     <GIC_SPI 98 IRQ_TYPE_LEVEL_LOW>,
> +				     <GIC_SPI 99 IRQ_TYPE_LEVEL_LOW>,
> +				     <GIC_SPI 100 IRQ_TYPE_LEVEL_LOW>,
> +				     <GIC_SPI 101 IRQ_TYPE_LEVEL_LOW>;
> +			dma-requests = <6>;
> +			clocks = <&topckgen CLK_TOP_APDMA>;
> +			clock-names = "apdma";
> +			#dma-cells = <1>;
> +		};
> +
>  		uart0: serial@...05000 {
>  			compatible = "mediatek,mt8516-uart",
>  				     "mediatek,mt6577-uart";
> @@ -284,6 +305,9 @@ uart0: serial@...05000 {
>  			clocks = <&topckgen CLK_TOP_UART0_SEL>,
>  				 <&topckgen CLK_TOP_UART0>;
>  			clock-names = "baud", "bus";
> +			dmas = <&apdma 0
> +				&apdma 1>;
> +			dma-names = "tx", "rx";
>  			status = "disabled";
>  		};
>  
> @@ -295,6 +319,9 @@ uart1: serial@...06000 {
>  			clocks = <&topckgen CLK_TOP_UART1_SEL>,
>  				 <&topckgen CLK_TOP_UART1>;
>  			clock-names = "baud", "bus";
> +			dmas = <&apdma 2
> +				&apdma 3>;
> +			dma-names = "tx", "rx";
>  			status = "disabled";
>  		};
>  
> @@ -306,6 +333,9 @@ uart2: serial@...07000 {
>  			clocks = <&topckgen CLK_TOP_UART2_SEL>,
>  				 <&topckgen CLK_TOP_UART2>;
>  			clock-names = "baud", "bus";
> +			dmas = <&apdma 4
> +				&apdma 5>;
> +			dma-names = "tx", "rx";
>  			status = "disabled";
>  		};
>  
>