linux-kernel - [PATCH] arm64: dts: qcom: sc8280xp-x13s: Add RTC support

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Message-Id: <20221230085010.717423-1-abel.vesa@linaro.org>
Date:   Fri, 30 Dec 2022 10:50:10 +0200
From:   Abel Vesa <abel.vesa@...aro.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Johan Hovold <johan@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc:     linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH] arm64: dts: qcom: sc8280xp-x13s: Add RTC support

The PMK8350 PMIC has an available RTC block. Describe it in
sc8280xp-pmics dtsi and enable it in Lenovo Thinkpad X13s specific dts.
Mark it as wakeup-source to allow waking the system from sleep.

Signed-off-by: Abel Vesa <abel.vesa@...aro.org>
---
 .../arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts | 4 ++++
 arch/arm64/boot/dts/qcom/sc8280xp-pmics.dtsi              | 8 ++++++++
 2 files changed, 12 insertions(+)

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 568c6be1ceaa..4f6daa3f8cb9 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-lenovo-thinkpad-x13s.dts
@@ -419,6 +419,10 @@ &pmk8280_pon_resin {
 	status = "okay";
 };
 
+&pmk8280_rtc {
+	status = "okay";
+};
+
 &pmk8280_vadc {
 	status = "okay";
 
diff --git a/arch/arm64/boot/dts/qcom/sc8280xp-pmics.dtsi b/arch/arm64/boot/dts/qcom/sc8280xp-pmics.dtsi
index f2c0b71b5d8e..00b13f9a7af8 100644
--- a/arch/arm64/boot/dts/qcom/sc8280xp-pmics.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc8280xp-pmics.dtsi
@@ -95,6 +95,14 @@ pmk8280_adc_tm: adc-tm@...0 {
 			#thermal-sensor-cells = <1>;
 			status = "disabled";
 		};
+
+		pmk8280_rtc: rtc@...0 {
+			compatible = "qcom,pmk8350-rtc";
+			reg = <0x6100>, <0x6200>;
+			reg-names = "rtc", "alarm";
+			interrupts = <0x0 0x62 0x1 IRQ_TYPE_EDGE_RISING>;
+			status = "disabled";
+		};
 	};
 
 	pmc8280_1: pmic@1 {
-- 
2.34.1