linux-kernel - Re: [PATCH v2 00/12] sc8280xp-pmic updates and X13s thermal zone support

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Date:   Sat, 29 Oct 2022 14:26:50 -0500
From:   Steev Klimaszewski <steev@...i.org>
To:     Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Cc:     andersson@...nel.org, 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 v2 00/12] sc8280xp-pmic updates and X13s thermal zone support

On Sat, Oct 29, 2022 at 12:15 AM Manivannan Sadhasivam
<manivannan.sadhasivam@...aro.org> wrote:
>
> Hello,
>
> This series adds below updates to sc8280xp-pmics:
>
> PM8280_{1/2}:
> - Temp alarm
> - Thermal zones
> - VADC channels
> - ADC_TM5 channels
>
> PMK8280:
> - ADC7 block
> - VADC channels
> - TM5 block
>
> PMR735A:
> - VADC channels
>
> Also adds the thermal zone support to Lenovo X13s based on the thermistor
> SYS_THERM6 that provides the laptop skin temperature.
>
> The sc8280xp-pmics is based on the new PMIC7 architecture. In this, all the
> ADC/TM5 measurements are collected by the primary PMIC PMK8280 from other
> slave PMICs PM8280_{1/2}, PMR735A using the Programmable Boot Sequence (PBS)
> and exposed them over the individual channels.
>
> PMK8280 uses the Slave ID (SID) for identifying each slave PMICs in a system.
> This ID is not static for each PMIC but rather set for each platform by the
> hardware designers. So this series allows the configurable SID by modifying the
> binding to accept SID values instead of hardcoding them.
>
> This series is tested on Lenovo X13s laptop by monitoring the temperature of
> the 8 on-board thermistors through IIO interface. The thermal zone support is
> validated by adding loads to the CPUs and making sure the skin temperature stays
> below the threshold provided in DT.
>
> Thanks,
> Mani
>
> Changes in v2:
>
> * Fixed issues reported by Krzysztof and "make dtbs_check"
> * Collected reviews from Krzysztof
> * Added the Lenovo X13s thermal zone patch
>
> Manivannan Sadhasivam (12):
>   dt-bindings: iio: qcom: adc7-pm8350: Allow specifying SID for channels
>   arm64: dts: qcom: sc8280xp-pmics: Add temp alarm for PM8280_{1/2}
>     PMICs
>   arm64: dts: qcom: sc8280xp-pmics: Add thermal zones for PM8280_{1/2}
>     PMICs
>   arm64: dts: qcom: sc8280xp-pmics: Add support for PMK8280 RESIN input
>   arm64: dts: qcom: sc8280xp-pmics: Add PMK8280 ADC7 block
>   arm64: dts: qcom: sc8280xp-pmics: Add support for TM5 block in PMK8280
>   arm64: dts: qcom: sc8280xp-x13s: Enable PMK8280 RESIN input
>   arm64: dts: qcom: sc8280xp-x13s: Add PMK8280 VADC channels
>   arm64: dts: qcom: sc8280xp-x13s: Add PM8280_{1/2} VADC channels
>   arm64: dts: qcom: sc8280xp-x13s: Add PMR735A VADC channel
>   arm64: dts: qcom: sc8280xp-x13s: Add PM8280_{1/2} ADC_TM5 channels
>   arm64: dts: qcom: sc8280xp-x13s: Add thermal zone support
>
>  .../bindings/thermal/qcom-spmi-adc-tm5.yaml   |   6 +-
>  .../qcom/sc8280xp-lenovo-thinkpad-x13s.dts    | 204 ++++++++++++++++++
>  arch/arm64/boot/dts/qcom/sc8280xp-pmics.dtsi  |  83 +++++++
>  .../dt-bindings/iio/qcom,spmi-adc7-pm8350.h   |  90 ++++----
>  4 files changed, 333 insertions(+), 50 deletions(-)
>
> --
> 2.25.1
>
Tested-by: Steev Klimaszewski <steev@...i.org>