linux-kernel - Re: [PATCH 1/2] ARM: dts: qcom: pm8941: fix vadc channel node names

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Message-ID: <638ca37e-2d2f-0247-8584-01002dea7e06@linaro.org>
Date:   Mon, 26 Sep 2022 10:44:51 +0200
From:   Neil Armstrong <neil.armstrong@...aro.org>
To:     Luca Weiss <luca@...tu.xyz>, linux-arm-msm@...r.kernel.org
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] ARM: dts: qcom: pm8941: fix vadc channel node names

On 25/09/2022 18:18, Luca Weiss wrote:
> Node names for the channel are supposed to be adc-chan@....
> 
> Use this format and at the same time sort the nodes by reg value.
> 
> Signed-off-by: Luca Weiss <luca@...tu.xyz>
> ---
>   arch/arm/boot/dts/qcom-pm8941.dtsi | 25 ++++++++++++++++---------
>   1 file changed, 16 insertions(+), 9 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/qcom-pm8941.dtsi b/arch/arm/boot/dts/qcom-pm8941.dtsi
> index 9cd49deb9fa7..3c15eecf2f21 100644
> --- a/arch/arm/boot/dts/qcom-pm8941.dtsi
> +++ b/arch/arm/boot/dts/qcom-pm8941.dtsi
> @@ -101,26 +101,33 @@ pm8941_vadc: adc@...0 {
>   			#size-cells = <0>;
>   			#io-channel-cells = <1>;
>   
> -			bat_temp {
> -				reg = <VADC_LR_MUX1_BAT_THERM>;
> +
> +			adc-chan@6 {
> +				reg = <VADC_VBAT_SNS>;
>   			};
> -			die_temp {
> +
> +			adc-chan@8 {
>   				reg = <VADC_DIE_TEMP>;
>   			};
> -			ref_625mv {
> +
> +			adc-chan@9 {
>   				reg = <VADC_REF_625MV>;
>   			};
> -			ref_1250v {
> +
> +			adc-chan@10 {
>   				reg = <VADC_REF_1250MV>;
>   			};
> -			ref_gnd {
> +
> +			adc-chan@14 {
>   				reg = <VADC_GND_REF>;
>   			};
> -			ref_vdd {
> +
> +			adc-chan@15 {
>   				reg = <VADC_VDD_VADC>;
>   			};
> -			vbat_sns {
> -				reg = <VADC_VBAT_SNS>;
> +
> +			adc-chan@48 {
> +				reg = <VADC_LR_MUX1_BAT_THERM>;
>   			};
>   		};
>   

Here aswell, I don't see where this is required, bindings doesn't mandate this naming:

patternProperties:

    "^.*@[0-9a-f]+$":
Neil