linux-kernel - Re: [PATCH] arm64: dts: ti: k3-j721s2: Add support for ADC nodes

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Date:   Tue, 8 Nov 2022 19:18:17 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Bhavya Kapoor <b-kapoor@...com>, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     linux-arm-kernel@...ts.infradead.org, vigneshr@...com, nm@...com,
        piyali_g@...com
Subject: Re: [PATCH] arm64: dts: ti: k3-j721s2: Add support for ADC nodes

On 08/11/2022 08:32, Bhavya Kapoor wrote:
> J721S2 has two instances of 8 channel ADCs in MCU domain. Add DT nodes
> for 8 channel ADCs for J721S2.
> 
> Enable ADCs present on J721S2 soc.
> 
> Signed-off-by: Bhavya Kapoor <b-kapoor@...com>
> ---
>  .../dts/ti/k3-j721s2-common-proc-board.dts    | 14 +++++++
>  .../boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi     | 40 +++++++++++++++++++
>  2 files changed, 54 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
> index b210cc07c539..de9cb40273be 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-common-proc-board.dts
> @@ -429,3 +429,17 @@
>  &main_mcan17 {
>  	status = "disabled";
>  };
> +
> +&tscadc0 {
> +	status = "okay";
> +	adc {
> +		ti,adc-channels = <0 1 2 3 4 5 6 7>;
> +	};
> +};
> +
> +&tscadc1 {
> +	status = "okay";
> +	adc {
> +		ti,adc-channels = <0 1 2 3 4 5 6 7>;
> +	};
> +};
> diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
> index 4d1bfabd1313..47a7a6b500c2 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721s2-mcu-wakeup.dtsi
> @@ -299,4 +299,44 @@
>  			ti,cpts-periodic-outputs = <2>;
>  		};
>  	};
> +
> +	tscadc0: tscadc@...00000 {

Node names should be generic, so "adc"
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation

Best regards,
Krzysztof