From: Johan Hovold <johan@kernel.org>
To: Johan Hovold <johan+linaro@kernel.org>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>,
Bjorn Andersson <andersson@kernel.org>,
Andy Gross <agross@kernel.org>,
Konrad Dybcio <konrad.dybcio@linaro.org>,
Alessandro Zummo <a.zummo@towertech.it>,
Rob Herring <robh+dt@kernel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Maximilian Luz <luzmaximilian@gmail.com>,
linux-arm-msm@vger.kernel.org, linux-rtc@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 19/24] rtc: pm8xxx: add support for uefi offset
Date: Thu, 26 Jan 2023 15:27:25 +0100 [thread overview]
Message-ID: <Y9KNzSYotgOheKZN@hovoldconsulting.com> (raw)
In-Reply-To: <20230126142057.25715-20-johan+linaro@kernel.org>
On Thu, Jan 26, 2023 at 03:20:52PM +0100, 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 the
> driver can take into account.
>
> Add support for storing a 32-bit offset from the GPS time epoch in a
> UEFI variable so that the RTC time can be set on such platforms.
>
> The UEFI variable is
>
> 882f8c2b-9646-435f-8de5-f208ff80c1bd-RTCInfo
>
> and holds a 12-byte structure where the first four bytes is a GPS time
> offset in little-endian byte order.
>
> Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
The Subject of this one was supposed to say "RFC" as it, like the
previous patch, is not intended to be merged just yet.
Johan
next prev parent reply other threads:[~2023-01-26 14:27 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-26 14:20 [PATCH 00/24] rtc: pm8xxx: add support for setting time using nvmem Johan Hovold
2023-01-26 14:20 ` [PATCH 01/24] rtc: pm8xxx: fix set-alarm race Johan Hovold
2023-01-26 14:20 ` [PATCH 02/24] rtc: pm8xxx: drop spmi error messages Johan Hovold
2023-01-26 14:20 ` [PATCH 03/24] rtc: pm8xxx: use regmap_update_bits() Johan Hovold
2023-01-26 14:20 ` [PATCH 04/24] rtc: pm8xxx: drop bogus locking Johan Hovold
2023-01-26 14:20 ` [PATCH 05/24] rtc: pm8xxx: return IRQ_NONE on errors Johan Hovold
2023-01-26 14:20 ` [PATCH 06/24] rtc: pm8xxx: drop unused register defines Johan Hovold
2023-01-26 14:20 ` [PATCH 07/24] rtc: pm8xxx: use unaligned le32 helpers Johan Hovold
2023-01-26 14:20 ` [PATCH 08/24] rtc: pm8xxx: clean up time and alarm debugging Johan Hovold
2023-01-26 14:20 ` [PATCH 09/24] rtc: pm8xxx: rename struct device pointer Johan Hovold
2023-01-26 14:20 ` [PATCH 10/24] rtc: pm8xxx: rename alarm irq variable Johan Hovold
2023-01-26 14:20 ` [PATCH 11/24] rtc: pm8xxx: clean up comments Johan Hovold
2023-01-26 14:20 ` [PATCH 12/24] rtc: pm8xxx: use u32 for timestamps Johan Hovold
2023-01-26 14:20 ` [PATCH 13/24] rtc: pm8xxx: refactor read_time() Johan Hovold
2023-01-26 14:20 ` [PATCH 14/24] rtc: pm8xxx: clean up local declarations Johan Hovold
2023-01-26 14:20 ` [PATCH 15/24] dt-bindings: rtc: qcom-pm8xxx: add nvmem-cell offset Johan Hovold
2023-01-26 15:56 ` Krzysztof Kozlowski
2023-01-26 14:20 ` [PATCH 16/24] rtc: pm8xxx: add support for nvmem offset Johan Hovold
2023-01-27 14:13 ` Srinivas Kandagatla
2023-01-27 15:32 ` Johan Hovold
2023-01-27 15:09 ` Alexandre Belloni
2023-01-27 15:51 ` Johan Hovold
2023-01-27 16:05 ` Alexandre Belloni
2023-02-02 15:12 ` Johan Hovold
2023-02-02 15:21 ` Alexandre Belloni
2023-01-26 14:20 ` [PATCH 17/24] rtc: pm8xxx: add copyright notice Johan Hovold
2023-01-26 16:06 ` Alexandre Belloni
2023-01-27 13:04 ` Johan Hovold
2023-01-27 14:14 ` Krzysztof Kozlowski
2023-02-02 10:22 ` Johan Hovold
2023-01-26 14:20 ` [RFC 18/24] dt-bindings: rtc: qcom-pm8xxx: add uefi-variable offset Johan Hovold
2023-01-30 18:49 ` Rob Herring
2023-02-01 16:09 ` Johan Hovold
2023-02-09 16:59 ` Ard Biesheuvel
2023-01-26 14:20 ` [PATCH 19/24] rtc: pm8xxx: add support for uefi offset Johan Hovold
2023-01-26 14:27 ` Johan Hovold [this message]
2023-01-27 15:19 ` Alexandre Belloni
2023-01-27 15:26 ` Johan Hovold
2023-01-27 15:59 ` Alexandre Belloni
2023-01-26 14:20 ` [PATCH 20/24] arm64: defconfig: enable Qualcomm SDAM nvmem driver Johan Hovold
2023-01-26 14:20 ` [PATCH 21/24] arm64: dts: qcom: sc8280xp-pmics: add pmk8280 rtc Johan Hovold
2023-01-26 14:20 ` [PATCH 22/24] arm64: dts: qcom: sc8280xp-pmics: add pmk8280 sdam nvram Johan Hovold
2023-01-26 14:20 ` [PATCH 23/24] arm64: dts: qcom: sc8280xp-crd: enable rtc Johan Hovold
2023-01-26 14:20 ` [PATCH 24/24] arm64: dts: qcom: sc8280xp-x13s: " Johan Hovold
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