From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
andersson@kernel.org
Cc: konrad.dybcio@somainline.org, robh+dt@kernel.org,
krzysztof.kozlowski+dt@linaro.org, johan+linaro@kernel.org,
quic_jprakash@quicinc.com, linux-arm-msm@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
steev@kali.org
Subject: Re: [PATCH v2 01/12] dt-bindings: iio: qcom: adc7-pm8350: Allow specifying SID for channels
Date: Wed, 2 Nov 2022 16:06:17 -0400 [thread overview]
Message-ID: <86314819-6842-cfea-73d8-c991109742df@linaro.org> (raw)
In-Reply-To: <20221029051449.30678-2-manivannan.sadhasivam@linaro.org>
On 29/10/2022 01:14, Manivannan Sadhasivam wrote:
> As per the new ADC7 architecture used by the Qualcomm PMICs, each PMIC
> has the static Slave ID (SID) assigned by default. The primary PMIC
> PMK8350 is responsible for collecting the temperature/voltage data from
> the slave PMICs and exposing them via it's registers.
>
> For getting the measurements from the slave PMICs, PMK8350 uses the
> channel ID encoded with the SID of the relevant PMIC. So far, the
> dt-binding for the slave PMIC PM8350 assumed that there will be only
> one PM8350 in a system. So it harcoded SID 1 with channel IDs.
>
> But this got changed in platforms such as Lenovo X13s where there are a
> couple of PM8350 PMICs available. So to address multiple PM8350s, change
> the binding to accept the SID specified by the user and use it for
> encoding the channel ID.
>
> It should be noted that, even though the SID is static it is not
> globally unique. Only the primary PMIC has the unique SID id 0.
>
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Best regards,
Krzysztof
next prev parent reply other threads:[~2022-11-02 20:06 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-29 5:14 [PATCH v2 00/12] sc8280xp-pmic updates and X13s thermal zone support Manivannan Sadhasivam
2022-10-29 5:14 ` [PATCH v2 01/12] dt-bindings: iio: qcom: adc7-pm8350: Allow specifying SID for channels Manivannan Sadhasivam
2022-10-29 22:07 ` Dmitry Baryshkov
2022-10-31 21:33 ` Rob Herring
2022-11-02 20:06 ` Krzysztof Kozlowski [this message]
2022-10-29 5:14 ` [PATCH v2 02/12] arm64: dts: qcom: sc8280xp-pmics: Add temp alarm for PM8280_{1/2} PMICs Manivannan Sadhasivam
2022-10-29 14:13 ` Konrad Dybcio
2022-10-29 5:14 ` [PATCH v2 03/12] arm64: dts: qcom: sc8280xp-pmics: Add thermal zones " Manivannan Sadhasivam
2022-10-29 14:13 ` Konrad Dybcio
2022-10-29 5:14 ` [PATCH v2 04/12] arm64: dts: qcom: sc8280xp-pmics: Add support for PMK8280 RESIN input Manivannan Sadhasivam
2022-10-29 14:15 ` Konrad Dybcio
2022-10-29 5:14 ` [PATCH v2 05/12] arm64: dts: qcom: sc8280xp-pmics: Add PMK8280 ADC7 block Manivannan Sadhasivam
2022-10-29 14:15 ` Konrad Dybcio
2022-10-29 14:17 ` Konrad Dybcio
2022-11-02 20:07 ` Krzysztof Kozlowski
2022-10-29 5:14 ` [PATCH v2 06/12] arm64: dts: qcom: sc8280xp-pmics: Add support for TM5 block in PMK8280 Manivannan Sadhasivam
2022-10-29 14:16 ` Konrad Dybcio
2022-10-29 5:14 ` [PATCH v2 07/12] arm64: dts: qcom: sc8280xp-x13s: Enable PMK8280 RESIN input Manivannan Sadhasivam
2022-10-29 14:16 ` Konrad Dybcio
2022-10-29 5:14 ` [PATCH v2 08/12] arm64: dts: qcom: sc8280xp-x13s: Add PMK8280 VADC channels Manivannan Sadhasivam
2022-10-29 14:18 ` Konrad Dybcio
2022-11-02 20:07 ` Krzysztof Kozlowski
2022-10-29 5:14 ` [PATCH v2 09/12] arm64: dts: qcom: sc8280xp-x13s: Add PM8280_{1/2} " Manivannan Sadhasivam
2022-10-29 14:20 ` Konrad Dybcio
2022-11-02 20:08 ` Krzysztof Kozlowski
2022-10-29 5:14 ` [PATCH v2 10/12] arm64: dts: qcom: sc8280xp-x13s: Add PMR735A VADC channel Manivannan Sadhasivam
2022-10-29 14:20 ` Konrad Dybcio
2022-11-02 20:08 ` Krzysztof Kozlowski
2022-10-29 5:14 ` [PATCH v2 11/12] arm64: dts: qcom: sc8280xp-x13s: Add PM8280_{1/2} ADC_TM5 channels Manivannan Sadhasivam
2022-10-29 14:21 ` Konrad Dybcio
2022-11-02 20:08 ` Krzysztof Kozlowski
2022-10-29 5:14 ` [PATCH v2 12/12] arm64: dts: qcom: sc8280xp-x13s: Add thermal zone support Manivannan Sadhasivam
2022-10-29 14:29 ` Konrad Dybcio
2022-10-29 19:07 ` Steev Klimaszewski
2022-11-03 5:50 ` Manivannan Sadhasivam
2022-11-03 10:02 ` Konrad Dybcio
2022-11-03 12:12 ` Manivannan Sadhasivam
2022-10-29 19:26 ` [PATCH v2 00/12] sc8280xp-pmic updates and X13s " Steev Klimaszewski
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