linux-kernel - Re: [PATCH v2 2/3] ARM: dts: microchip: sama7g5: Add flexcom 10 node

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Date: Thu, 15 Feb 2024 09:19:14 +0200
From: claudiu beznea <claudiu.beznea@...on.dev>
To: Mihai Sain <mihai.sain@...rochip.com>, robh+dt@...nel.org,
 krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
 nicolas.ferre@...rochip.com, alexandre.belloni@...tlin.com,
 andre.przywara@....com, devicetree@...r.kernel.org,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc: cristian.birsan@...rochip.com
Subject: Re: [PATCH v2 2/3] ARM: dts: microchip: sama7g5: Add flexcom 10 node

Hi, Mihai,

On 14.02.2024 10:03, Mihai Sain wrote:
> Add flexcom 10 node for usage on the SAMA7G54 Curiosity board.
> 
> Signed-off-by: Mihai Sain <mihai.sain@...rochip.com>
> ---
>  arch/arm/boot/dts/microchip/sama7g5.dtsi | 26 ++++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/microchip/sama7g5.dtsi b/arch/arm/boot/dts/microchip/sama7g5.dtsi
> index 269e0a3ca269..c90e404e8ed9 100644
> --- a/arch/arm/boot/dts/microchip/sama7g5.dtsi
> +++ b/arch/arm/boot/dts/microchip/sama7g5.dtsi
> @@ -958,6 +958,32 @@ i2c9: i2c@600 {
>  			};
>  		};
>  
> +		flx10: flexcom@...20000 {
> +			compatible = "atmel,sama5d2-flexcom";
> +			reg = <0xe2820000 0x200>;
> +			clocks = <&pmc PMC_TYPE_PERIPHERAL 48>;
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			ranges = <0x0 0xe2820000 0x800>;
> +			status = "disabled";
> +
> +			i2c10: i2c@600 {
> +				compatible = "microchip,sama7g5-i2c", "microchip,sam9x60-i2c";
> +				reg = <0x600 0x200>;
> +				interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
> +				#address-cells = <1>;
> +				#size-cells = <0>;
> +				clocks = <&pmc PMC_TYPE_PERIPHERAL 48>;
> +				atmel,fifo-size = <32>;
> +				dmas = <&dma0 AT91_XDMAC_DT_PERID(25)>,
> +					<&dma0 AT91_XDMAC_DT_PERID(26)>;
> +				dma-names = "rx", "tx";

Please use the same pattern used by the rest of the i2c flexcom nodes, meaning:
				dma-names = "tx", "rx";

and, with this, reverse the order of dmas, too.

> +				atmel,use-dma-rx;
> +				atmel,use-dma-tx;

These are uart properties.

> +				status = "disabled";
> +			};
> +		};
> +
>  		flx11: flexcom@...24000 {
>  			compatible = "atmel,sama5d2-flexcom";
>  			reg = <0xe2824000 0x200>;