linux-kernel - Re: [PATCH 15/24] dt-bindings: rtc: qcom-pm8xxx: add nvmem-cell offset

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Message-ID: <b5b0b377-b3da-1c32-3b40-6d8ef9774ca2@linaro.org>
Date:   Thu, 26 Jan 2023 16:56:27 +0100
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Johan Hovold <johan+linaro@...nel.org>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Bjorn Andersson <andersson@...nel.org>
Cc:     Andy Gross <agross@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Maximilian Luz <luzmaximilian@...il.com>,
        linux-arm-msm@...r.kernel.org, linux-rtc@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 15/24] dt-bindings: rtc: qcom-pm8xxx: add nvmem-cell
 offset

On 26/01/2023 15:20, Johan Hovold wrote:
> On many Qualcomm platforms the PMIC RTC control and time registers are
> read-only so that the RTC time can not be updated. Instead an offset
> needs be stored in some machine-specific non-volatile memory, which a
> driver can take into account.
> 
> Add an 'offset' nvmem cell which can be used to store a 32-bit offset
> from the Unix epoch so that the RTC time can be updated on such
> platforms.
> 
> Signed-off-by: Johan Hovold <johan+linaro@...nel.org>
> ---


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof