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Message-ID: <ZcCwyKQ4KrtlCCkv@t480>
Date: Mon, 5 Feb 2024 17:56:24 +0800
From: Shawn Guo <shawn.gsc@...il.com>
To: Josua Mayer <josua@...id-run.com>
Cc: Russell King <linux@...linux.org.uk>, Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.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>,
NXP Linux Team <linux-imx@....com>,
Yazan Shhady <yazan.shhady@...id-run.com>,
Jon Nettleton <jon@...id-run.com>, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] ARM: dts: imx6qdl-hummingboard: Add rtc0 and rtc1
aliases to fix hctosys
On Thu, Jan 18, 2024 at 04:01:10PM +0100, Josua Mayer 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 <josua@...id-run.com>
Applied, thanks!
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