linux-kernel - Re: [PATCH 3/3] arm64: dts: qcom: sm7225-fairphone-fp4: Add pm7250b PMIC

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Date:   Sat, 3 Sep 2022 14:25:19 +0200
From:   Konrad Dybcio <konrad.dybcio@...ainline.org>
To:     Luca Weiss <luca.weiss@...rphone.com>,
        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>,
        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 3/3] arm64: dts: qcom: sm7225-fairphone-fp4: Add pm7250b
 PMIC



On 2.09.2022 13:10, Luca Weiss wrote:
> The PM7250B is primarily used for charger and fuel gauge on Fairphone 4
> but also has some thermal zones that we can configure already.
> 
> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
> ---
>  .../boot/dts/qcom/sm7225-fairphone-fp4.dts    | 67 +++++++++++++++++++
>  1 file changed, 67 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> index c76abe7587b4..30c94fd4fe61 100644
> --- a/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> +++ b/arch/arm64/boot/dts/qcom/sm7225-fairphone-fp4.dts
> @@ -12,6 +12,7 @@
>  #include "sm7225.dtsi"
>  #include "pm6150l.dtsi"
>  #include "pm6350.dtsi"
> +#include "pm7250b.dtsi"
>  
>  / {
>  	model = "Fairphone 4";
> @@ -70,6 +71,36 @@ memory@...01000 {
>  			qcom,vmid = <15>;
>  		};
>  	};
> +
> +	thermal-zones {
> +		chg-skin-thermal {
> +			polling-delay-passive = <0>;
> +			polling-delay = <0>;
> +			thermal-sensors = <&pm7250b_adc_tm 0>;
> +
> +			trips {
> +				active-config0 {
> +					temperature = <125000>;
> +					hysteresis = <1000>;
> +					type = "passive";
> +				};
> +			};
> +		};
> +
> +		conn-thermal {
> +			polling-delay-passive = <0>;
> +			polling-delay = <0>;
> +			thermal-sensors = <&pm7250b_adc_tm 1>;
> +
> +			trips {
> +				active-config0 {
> +					temperature = <125000>;
> +					hysteresis = <1000>;
> +					type = "passive";
> +				};
> +			};
> +		};
> +	};
>  };
>  
>  &adsp {
> @@ -353,6 +384,42 @@ &pm6350_resin {
>  	linux,code = <KEY_VOLUMEDOWN>;
>  };
>  
> +&pm7250b_adc {
> +	adc-chan@4d {
> +		reg = <ADC5_AMUX_THM1_100K_PU>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time = <200>;
> +		qcom,pre-scaling = <1 1>;
> +		label = "charger_skin_therm";
> +	};
> +
> +	adc-chan@4f {
> +		reg = <ADC5_AMUX_THM3_100K_PU>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time = <200>;
> +		qcom,pre-scaling = <1 1>;
> +		label = "conn_therm";
> +	};
> +};
> +
> +&pm7250b_adc_tm {
> +	status = "okay";
> +
> +	charger-skin-therm@0 {
> +		reg = <0>;
> +		io-channels = <&pm7250b_adc ADC5_AMUX_THM1_100K_PU>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time-us = <200>;
Reverse-Christmas-tree would have been nicer here and above, in pm7250b_adc,
but for the code itself:

Reviewed-by: Konrad Dybcio <konrad.dybcio@...ainline.org>

Konrad
> +	};
> +
> +	conn-therm@1 {
> +		reg = <1>;
> +		io-channels = <&pm7250b_adc ADC5_AMUX_THM3_100K_PU>;
> +		qcom,ratiometric;
> +		qcom,hw-settle-time-us = <200>;
> +	};
> +};
> +
>  &qupv3_id_1 {
>  	status = "okay";
>  };