linux-kernel - Re: [PATCH 09/11] arm64: dts: qcom: sc8280xp-x13s: Add PM8280

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Date:   Thu, 27 Oct 2022 10:09:21 -0400
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        andersson@...nel.org
Cc:     konrad.dybcio@...ainline.org, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, johan+linaro@...nel.org,
        quic_jprakash@...cinc.com, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 09/11] arm64: dts: qcom: sc8280xp-x13s: Add PM8280_{1/2}
 VADC channels

On 27/10/2022 02:30, Manivannan Sadhasivam wrote:
> Add VADC channels of PM8280_{1/2} PMICs for measuring the on-chip die
> temperature and external thermistors connected to the AMUX pins.
> 
> The measurements are collected by the primary PMIC PMK8280 from the
> slave PMICs PM8280_{1/2} and exposed them over the PMK8280's VADC

secondary PMICs

Drop "them"


> channels.
> 
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
> ---
>  .../qcom/sc8280xp-lenovo-thinkpad-x13s.dts    | 61 +++++++++++++++++++
>  1 file changed, 61 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> index 9ac5d5c22832..d300d217fdc6 100644
> --- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> +++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
> @@ -7,6 +7,7 @@
>  /dts-v1/;
>  
>  #include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/iio/qcom,spmi-adc7-pm8350.h>
>  #include <dt-bindings/iio/qcom,spmi-adc7-pmk8350.h>
>  #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
>  
> @@ -189,6 +190,66 @@ pmk8280-xo-therm@44 {
>  		qcom,ratiometric;
>  		qcom,hw-settle-time = <200>;
>  	};
> +
> +	pm8280-1-die-temp@103 {

pmic-die-temp? What pm8280 stands here?


> +		reg = <PM8350_ADC7_DIE_TEMP(1)>;
> +		label = "pm8280_1_die_temp";
> +		qcom,pre-scaling = <1 1>;
> +	};
> +
> +	sys-therm1@144 {

I would say sys-therm@... why do we need the "1" suffix in node name?

> +		reg = <PM8350_ADC7_AMUX_THM1_100K_PU(1)>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time = <200>;
> +	};

Best regards,
Krzysztof