[PATCH V2 09/10] arm64: dts: imx8mn-beacon: Enable RTC interrupt and wakeup-source

Adam Ford aford173 at gmail.com
Tue Apr 15 18:01:35 PDT 2025


Enable the interrupts and wakeup-source to allow the external RTC to be
used as an alarm.

Signed-off-by: Adam Ford <aford173 at gmail.com>
---
V2:  Update commit message. No active changes

 arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi
index b3692b367a42..987c14d3af9d 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi
@@ -245,7 +245,12 @@ eeprom at 50 {
 	rtc: rtc at 51 {
 		compatible = "nxp,pcf85263";
 		reg = <0x51>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_rtc>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <13 IRQ_TYPE_LEVEL_LOW>;
 		quartz-load-femtofarads = <12500>;
+		wakeup-source;
 	};
 };
 
@@ -365,6 +370,12 @@ MX8MN_IOMUXC_GPIO1_IO03_GPIO1_IO3		0x141
 		>;
 	};
 
+	pinctrl_rtc: rtcgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_GPIO1_IO13_GPIO1_IO13	0x146
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX8MN_IOMUXC_UART1_RXD_UART1_DCE_RX	0x140
-- 
2.48.1




More information about the linux-arm-kernel mailing list