linux-kernel - Re: [PATCH 13/13] arm64: dts: ti: k3-am64: Enable TSCADC nodes at the board level

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Date:   Mon, 7 Aug 2023 11:11:20 +0530
From:   Dhruva Gole <d-gole@...com>
To:     Andrew Davis <afd@...com>, Nishanth Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo <kristo@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 13/13] arm64: dts: ti: k3-am64: Enable TSCADC nodes at the
 board level



On 03/08/23 02:23, Andrew Davis wrote:
> TSCADC nodes defined in the top-level AM64 SoC dtsi files are incomplete
> and may not be functional unless they are extended with pinmux and/or
> device information.
> 
> Disable the TSCADC nodes in the dtsi files and only enable the ones that
> are actually pinned out on a given board.
> 
> Signed-off-by: Andrew Davis <afd@...com>
> ---
>   arch/arm64/boot/dts/ti/k3-am64-main.dtsi | 1 +
>   arch/arm64/boot/dts/ti/k3-am642-sk.dts   | 4 ----
>   2 files changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> index 49f910e4b03fc..a9db9b6d03aca 100644
> --- a/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-am64-main.dtsi
> @@ -773,6 +773,7 @@ tscadc0: tscadc@...01000 {
>   		assigned-clock-parents = <&k3_clks 0 3>;
>   		assigned-clock-rates = <60000000>;
>   		clock-names = "fck";
> +		status = "disabled";
>   
>   		adc {
>   			#io-channel-cells = <1>;
> diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> index af06ccd466802..722fd285a34ec 100644
> --- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> +++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
> @@ -513,10 +513,6 @@ cpsw3g_phy1: ethernet-phy@1 {
>   	};
>   };
>   
> -&tscadc0 {
> -	status = "disabled";
> -};
> -

Reviewed-by: Dhruva Gole <d-gole@...com>

>   &ospi0 {
>   	status = "okay";
>   	pinctrl-names = "default";

-- 
Thanks and Regards,
Dhruva Gole