linux-kernel - Re: (subset) [PATCH v2 00/22] rtc: pm8xxx: add support for setting time using nvmem

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Message-ID: <Y+YIg9Yp3Sy7n4Pb@mail.local>
Date:   Fri, 10 Feb 2023 10:04:03 +0100
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Johan Hovold <johan@...nel.org>
Cc:     Bjorn Andersson <andersson@...nel.org>,
        Johan Hovold <johan+linaro@...nel.org>,
        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: (subset) [PATCH v2 00/22] rtc: pm8xxx: add support for setting
 time using nvmem

On 10/02/2023 08:53:52+0100, Johan Hovold wrote:
> On Thu, Feb 09, 2023 at 11:25:34PM +0100, Alexandre Belloni wrote:
> > 
> > On Thu, 02 Feb 2023 16:54:26 +0100, Johan Hovold wrote:
> > > This series adds support for setting the RTC time on Qualcomm platforms
> > > where the PMIC RTC time registers are read-only by instead storing an
> > > offset in some other non-volatile memory. This is used to enable the RTC
> > > in the SC8280XP Compute Reference Design (CRD) and Lenovo Thinkpad X13s
> > > laptop.
> > > 
> > > The RTCs in many Qualcomm devices are effectively broken due to the time
> > > registers being read-only. Instead some other non-volatile memory can be
> > > used to store and offset which a driver can take into account. On
> > > machines like the X13s, the UEFI firmware (and Windows) use a UEFI
> > > variable for storing such an offset, but not all Qualcomm systems use
> > > UEFI.
> > > 
> > > [...]
> > 
> > Applied, thanks!
> > 
> > [01/22] rtc: pm8xxx: fix set-alarm race
> >         commit: c88db0eff9722fc2b6c4d172a50471d20e08ecc6
> 
> ...
> 
> > [15/22] rtc: pm8xxx: drop error messages
> >         commit: c94fb939e65155bc889e62396f83ef4317d643ac
> 
> I noticed that you did not apply patches 16 and 17 that add support for
> the nvmem offset. Was that on purpose or a mistake?

This was on purpose, I'll handle them tonight.

-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com