arm64: dts: qcom: sc8280xp-pmics: add pmk8280 rtc

The PMK8280 has an RTC which can also be used as a wakeup source.

Note that the RTC can not be disabled and updating the time is not
permitted either. Instead an offset can be stored in some other machine-
specific non-volatile memory which a driver can take into account.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230202155448.6715-20-johan+linaro@kernel.org

diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-pmics.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp-pmics.dtsi
index df7d28f..d2518ff 100644 (file)
--- a/arch/arm64/boot/dts/qcom/sc8280xp-pmics.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-pmics.dtsi
@@ -95,6 +95,15 @@
                        #thermal-sensor-cells = <1>;
                        status = "disabled";
                };
+
+               pmk8280_rtc: rtc@6100 {
+                       compatible = "qcom,pmk8350-rtc";
+                       reg = <0x6100>, <0x6200>;
+                       reg-names = "rtc", "alarm";
+                       interrupts = <0x0 0x62 0x1 IRQ_TYPE_EDGE_RISING>;
+                       wakeup-source;
+                       status = "disabled";
+               };
        };
 
        pmc8280_1: pmic@1 {