From: "Jérôme de Bretagne via B4 Relay" <devnull+jerome.debretagne.gmail.com@kernel.org>
To: Bjorn Andersson <andersson@kernel.org>,
Konrad Dybcio <konradybcio@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Johan Hovold <johan@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
"Krzysztof Kozlowski" <krzk@kernel.org>,
"Jérôme de Bretagne" <jerome.debretagne@gmail.com>,
"Konrad Dybcio" <konrad.dybcio@oss.qualcomm.com>
Subject: [PATCH v3 09/10] arm64: dts: qcom: sc8280xp-arcata: Switch to uefi rtc offset
Date: Thu, 04 Jun 2026 18:18:45 +0200 [thread overview]
Message-ID: <20260604-surface-sp9-5g-for-next-v3-9-6aa6f6612c10@gmail.com> (raw)
In-Reply-To: <20260604-surface-sp9-5g-for-next-v3-0-6aa6f6612c10@gmail.com>
From: Jérôme de Bretagne <jerome.debretagne@gmail.com>
Align with the reference implementation from the ThinkPad X13s:
Switch to using the Qualcomm specific UEFI variable that is used by the
UEFI firmware (and Windows) to store the RTC offset.
Use the new 'qcom,uefi-rtc-info' property to indicate that the offset is
stored in a UEFI variable so that the OS can determine whether to wait
for it to become available.
Cc: Johan Hovold <johan@kernel.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Jérôme de Bretagne <jerome.debretagne@gmail.com>
---
arch/arm64/boot/dts/qcom/sc8280xp-microsoft-arcata.dts | 11 +----------
1 file changed, 1 insertion(+), 10 deletions(-)
diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-arcata.dts b/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-arcata.dts
index d1f72cddebf1df7b67be698a77656532d2f74766..60f65fd450ecba8196509a620be029314e5efc05 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-arcata.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-microsoft-arcata.dts
@@ -732,20 +732,11 @@ &pmk8280_pon_resin {
};
&pmk8280_rtc {
- nvmem-cells = <&rtc_offset>;
- nvmem-cell-names = "offset";
+ qcom,uefi-rtc-info;
status = "okay";
};
-&pmk8280_sdam_6 {
- status = "okay";
-
- rtc_offset: rtc-offset@bc {
- reg = <0xbc 0x4>;
- };
-};
-
&qup0 {
status = "okay";
};
--
2.47.3
next prev parent reply other threads:[~2026-06-04 16:18 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-04 16:18 [PATCH v3 00/10] Microsoft Surface Pro 9 5G update Jérôme de Bretagne via B4 Relay
2026-06-04 16:18 ` [PATCH v3 01/10] arm64: dts: qcom: sc8280xp-arcata: Enable backlight Jérôme de Bretagne via B4 Relay
2026-06-09 9:23 ` Konrad Dybcio
2026-06-04 16:18 ` [PATCH v3 02/10] arm64: dts: qcom: sc8280xp-arcata: Enable the eDP display Jérôme de Bretagne via B4 Relay
2026-06-09 9:23 ` Konrad Dybcio
2026-06-04 16:18 ` [PATCH v3 03/10] arm64: dts: qcom: sc8280xp-arcata: add USB-C orientation GPIOs Jérôme de Bretagne via B4 Relay
2026-06-04 16:18 ` [PATCH v3 04/10] arm64: dts: qcom: sc8280xp-arcata: Fix top USB-C DP alt mode Jérôme de Bretagne via B4 Relay
2026-06-04 16:18 ` [PATCH v3 05/10] arm64: dts: qcom: sc8280xp-arcata: Enable 4-lane DP support Jérôme de Bretagne via B4 Relay
2026-06-04 16:18 ` [PATCH v3 06/10] arm64: dts: qcom: sc8280xp-arcata: Add volume up/down GPIO keys Jérôme de Bretagne via B4 Relay
2026-06-04 16:18 ` [PATCH v3 07/10] arm64: dts: qcom: sc8280xp-arcata: Add lid switch Jérôme de Bretagne via B4 Relay
2026-06-04 16:18 ` [PATCH v3 08/10] arm64: dts: qcom: sc8280xp-arcata: model the PMU of the on-board wcn6855 Jérôme de Bretagne via B4 Relay
2026-06-08 14:15 ` Bartosz Golaszewski
2026-06-04 16:18 ` Jérôme de Bretagne via B4 Relay [this message]
2026-06-04 16:18 ` [PATCH v3 10/10] arm64: dts: qcom: sc8280xp-arcata: Drop duplicate DMIC supplies Jérôme de Bretagne via B4 Relay
2026-07-08 14:56 ` [PATCH v3 00/10] Microsoft Surface Pro 9 5G update Bjorn Andersson
2026-07-08 18:53 ` Jérôme de Bretagne
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20260604-surface-sp9-5g-for-next-v3-9-6aa6f6612c10@gmail.com \
--to=devnull+jerome.debretagne.gmail.com@kernel.org \
--cc=andersson@kernel.org \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=jerome.debretagne@gmail.com \
--cc=johan@kernel.org \
--cc=konrad.dybcio@oss.qualcomm.com \
--cc=konradybcio@kernel.org \
--cc=krzk+dt@kernel.org \
--cc=krzk@kernel.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=robh@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®