linux-kernel - [PATCH 9/9] arm64: dts: imx8mn-beacon: Enable RTC interrupt and wakeup-source

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Message-ID: <20250410005912.118732-9-aford173@gmail.com>
Date: Wed,  9 Apr 2025 19:59:03 -0500
From: Adam Ford <aford173@...il.com>
To: linux-arm-kernel@...ts.infradead.org
Cc: aford@...conembedded.com,
	Adam Ford <aford173@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH 9/9] arm64: dts: imx8mn-beacon: Enable RTC interrupt and wakeup-source

The external RTC has the ability to be used as an alarm when
interrupts are enabled and configured as a wakeup-source.

Signed-off-by: Adam Ford <aford173@...il.com>
---
 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@50 {
 	rtc: rtc@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