[PATCH v3 09/10] arm64: dts: qcom: sc8280xp-arcata: Switch to uefi rtc offset

[Jérôme de Bretagne via B4 Relay]

From: Jérôme de Bretagne <jerome.debretagne@xxxxxxxxx>

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@xxxxxxxxxx>
Reviewed-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxxxxxxxx>
Signed-off-by: Jérôme de Bretagne <jerome.debretagne@xxxxxxxxx>
---
 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