Commit 69ec77b3 authored Mar 05, 2026 by Jon Hunter Committed by Thierry Reding Mar 27, 2026

arm64: tegra: Fix RTC aliases

The following warning is observed on the Tegra234 Jetson platforms ...

rtc-nvidia-vrs10 4-003c: /aliases ID 0 not available

This happens because the 'rtc@c2a0000' device is registered before the
vrs10 RTC and so is assigned the 'rtc0' alias. We want the vrs10 RTC to
be the default RTC because this RTC maintains time across power cycles.
Fix this by adding a 'rtc1' alias for the 'rtc@c2a0000' device.

Fixes: b1806f2b ("arm64: tegra: Add device-tree node for NVVRS RTC")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

parent 8231b3db

arch/arm64/boot/dts/nvidia/tegra234-p3701.dtsi

+1 −0

Original line number	Diff line number	Diff line
		@@ -9,6 +9,7 @@ aliases {
		mmc0 = "/bus@0/mmc@3460000";
		mmc1 = "/bus@0/mmc@3400000";
		rtc0 = "/bpmp/i2c/pmic@3c";
		rtc1 = "/bus@0/rtc@c2a0000";
		};

		bus@0 {

arch/arm64/boot/dts/nvidia/tegra234-p3767.dtsi

+1 −0

Original line number	Diff line number	Diff line
		@@ -8,6 +8,7 @@ / {
		aliases {
		mmc0 = "/bus@0/mmc@3400000";
		rtc0 = "/bpmp/i2c/pmic@3c";
		rtc1 = "/bus@0/rtc@c2a0000";
		};

		bus@0 {