From: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Date: Mon, 5 Jan 2026 20:39:40 +0000 (+0100)
Subject: arm64: dts: imx8mq-librem5: Enable SNVS RTC
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1361bfee8d7b791288e585a3467330a5f5b699ed;p=thirdparty%2Fkernel%2Flinux.git

arm64: dts: imx8mq-librem5: Enable SNVS RTC

It has been disabled because it was being used for system clock instead
of the discrete RTC. However, SNVS has some features that the discrete
RTC does not, such as being able to turn the device on. Solve that issue
with aliases instead and reenable SNVS RTC.

Signed-off-by: Sebastian Krzyszkowiak <sebastian.krzyszkowiak@puri.sm>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index bc3e103b2d6a6..5e0bf127e7e5b 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -17,6 +17,11 @@
 	compatible = "purism,librem5", "fsl,imx8mq";
 	chassis-type = "handset";
 
+	aliases {
+		rtc0 = &rtc;
+		rtc1 = &snvs_rtc;
+	};
+
 	backlight_dsi: backlight-dsi {
 		compatible = "led-backlight";
 		leds = <&led_backlight>;
@@ -1001,7 +1006,7 @@
 		};
 	};
 
-	rtc@68 {
+	rtc: rtc@68 {
 		compatible = "microcrystal,rv4162";
 		reg = <0x68>;
 		pinctrl-names = "default";
@@ -1316,10 +1321,6 @@
 	status = "okay";
 };
 
-&snvs_rtc {
-	status = "disabled";
-};
-
 &uart1 { /* console */
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart1>;