linux-kernel - Re: [linux][PATCH 4/6] ARM: dts: at91: sam9x60: Add DMA bindigs for the flexcom nodes

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Message-ID: <3a26d5a6-49fb-85c2-def8-d08b8f0842bc@microchip.com>
Date:   Thu, 8 Sep 2022 07:58:44 +0000
From:   <Claudiu.Beznea@...rochip.com>
To:     <Hari.PrasathGE@...rochip.com>, <Nicolas.Ferre@...rochip.com>,
        <davem@...emloft.net>, <krzysztof.kozlowski+dt@...aro.org>,
        <alexandre.belloni@...tlin.com>, <arnd@...db.de>, <olof@...om.net>,
        <soc@...nel.org>, <Manikandan.M@...rochip.com>, <michael@...le.cc>,
        <Horatiu.Vultur@...rochip.com>, <Kavyasree.Kotagiri@...rochip.com>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <Durai.ManickamKR@...rochip.com>
Subject: Re: [linux][PATCH 4/6] ARM: dts: at91: sam9x60: Add DMA bindigs for
 the flexcom nodes

On 07.09.2022 12:20, Hari Prasath wrote:
> Add dma bindings for flexcom nodes in the soc dtsi file. Users those who
> don't wish to use the DMA function for their flexcom functions can
> overwrite the dma bindings in the board device tree file.
> 
> Signed-off-by: Manikandan M <manikandan.m@...rochip.com>
> Signed-off-by: Hari Prasath <Hari.PrasathGE@...rochip.com>

As you are the author, your sob tag should be first.

> ---
>  arch/arm/boot/dts/at91-sam9x60ek.dts |  3 +++
>  arch/arm/boot/dts/sam9x60.dtsi       | 27 +++++++++++++++++++++++++++
>  2 files changed, 30 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/at91-sam9x60ek.dts b/arch/arm/boot/dts/at91-sam9x60ek.dts
> index 9d9e50c77794..9ad528e1bdd2 100644
> --- a/arch/arm/boot/dts/at91-sam9x60ek.dts
> +++ b/arch/arm/boot/dts/at91-sam9x60ek.dts
> @@ -213,6 +213,7 @@
>  	i2c0: i2c@600 {
>  		#address-cells = <1>;
>  		#size-cells = <0>;
> +		dmas = <0>, <0>;
>  		pinctrl-names = "default";
>  		pinctrl-0 = <&pinctrl_flx0_default>;
>  		i2c-analog-filter;
> @@ -234,6 +235,7 @@
>  	status = "disabled";
>  
>  	spi4: spi@400 {
> +		dmas = <0>, <0>;
>  		pinctrl-names = "default";
>  		pinctrl-0 = <&pinctrl_flx4_default>;
>  		status = "disabled";
> @@ -258,6 +260,7 @@
>  	i2c6: i2c@600 {
>  		#address-cells = <1>;
>  		#size-cells = <0>;
> +		dmas = <0>, <0>;
>  		pinctrl-names = "default";
>  		pinctrl-0 = <&pinctrl_flx6_default>;
>  		i2c-analog-filter;
> diff --git a/arch/arm/boot/dts/sam9x60.dtsi b/arch/arm/boot/dts/sam9x60.dtsi
> index 224b406c8384..feeabc53e0ec 100644
> --- a/arch/arm/boot/dts/sam9x60.dtsi
> +++ b/arch/arm/boot/dts/sam9x60.dtsi
> @@ -176,6 +176,15 @@
>  					interrupts = <13 IRQ_TYPE_LEVEL_HIGH 7>;
>  					clocks = <&pmc PMC_TYPE_PERIPHERAL 13>;
>  					clock-names = "spi_clk";
> +					dmas = <&dma0
> +						(AT91_XDMAC_DT_MEM_IF(0) |
> +						 AT91_XDMAC_DT_PER_IF(1) |
> +						 AT91_XDMAC_DT_PERID(8))>,
> +						<&dma0
> +						(AT91_XDMAC_DT_MEM_IF(0) |
> +						 AT91_XDMAC_DT_PER_IF(1) |
> +						 AT91_XDMAC_DT_PERID(9))>;
> +					dma-names = "tx", "rx";
>  					atmel,fifo-size = <16>;
>  					status = "disabled";
>  				};
> @@ -415,6 +424,15 @@
>  					reg = <0x600 0x200>;
>  					interrupts = <9 IRQ_TYPE_LEVEL_HIGH 7>;
>  					clocks = <&pmc PMC_TYPE_PERIPHERAL 9>;
> +					dmas = <&dma0
> +						(AT91_XDMAC_DT_MEM_IF(0) |
> +						 AT91_XDMAC_DT_PER_IF(1) |
> +						 AT91_XDMAC_DT_PERID(12))>,
> +						<&dma0
> +						(AT91_XDMAC_DT_MEM_IF(0) |
> +						 AT91_XDMAC_DT_PER_IF(1) |
> +						 AT91_XDMAC_DT_PERID(13))>;
> +					dma-names = "tx", "rx";
>  					atmel,fifo-size = <16>;
>  					status = "disabled";
>  				};
> @@ -454,6 +472,15 @@
>  					#address-cells = <1>;
>  					#size-cells = <0>;
>  					clocks = <&pmc PMC_TYPE_PERIPHERAL 5>;
> +					dmas = <&dma0
> +						(AT91_XDMAC_DT_MEM_IF(0) |
> +						 AT91_XDMAC_DT_PER_IF(1) |
> +						 AT91_XDMAC_DT_PERID(0))>,
> +						<&dma0
> +						(AT91_XDMAC_DT_MEM_IF(0) |
> +						 AT91_XDMAC_DT_PER_IF(1) |
> +						 AT91_XDMAC_DT_PERID(1))>;
> +					dma-names = "tx", "rx";
>  					atmel,fifo-size = <16>;
>  					status = "disabled";
>  				};