2024-01-18 15:10:27

by Fabio Estevam

[permalink] [raw]
Subject: Re: [PATCH] ARM: dts: imx6qdl-hummingboard: Add rtc0 and rtc1 aliases to fix hctosys

On Thu, Jan 18, 2024 at 12:01 PM Josua Mayer <[email protected]> wrote:
>
> HummingBoard has two RTCs, first integrated within SoC that can be used to
> wake up from sleep - and a second on the carrier board including back-up
> battery which is intended for keeping time during power-off.
>
> Add aliases for both, ensuring that the battery-backed clock is primary
> rtc and used by default during boot for restoring system time.
>
> Fixes keeping time across power-cycle observed on Debian,
> which sets RTC_HCTOSYS_DEVICE="rtc0".
>
> Signed-off-by: Josua Mayer <[email protected]>

Reviewed-by: Fabio Estevam <[email protected]>