| Message ID | 20250423075143.11157-4-johan+linaro@kernel.org |
|---|---|
| State | New |
| Headers | show |
| Series | rtc: pm8xxx: fix uefi offset lookup | expand |
diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts index 8000254f4db5..66c39765225f 100644 --- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts +++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts @@ -1090,6 +1090,8 @@ &pmk8280_pon_resin { }; &pmk8280_rtc { + qcom,uefi-rtc-info; + status = "okay"; };
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. On platforms where the offset is stored in a Qualcomm specific UEFI variable the variables are also accessed in a non-standard way, which means that the OS cannot assume that the variable service is available by the time the RTC driver probes. 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. Fixes: 409803681a55 ("arm64: dts: qcom: sc8280xp-x13s: switch to uefi rtc offset") Signed-off-by: Johan Hovold <johan+linaro@kernel.org> --- arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts | 2 ++ 1 file changed, 2 insertions(+)