linux-kernel - Re: [PATCH] arm64: dts: imx8mn-beacon-som: Configure RTC aliases

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Message-ID: <20210118001843.GB28365@dragon>
Date:   Mon, 18 Jan 2021 08:18:44 +0800
From:   Shawn Guo <shawnguo@...nel.org>
To:     Adam Ford <aford173@...il.com>
Cc:     linux-arm-kernel@...ts.infradead.org, aford@...conembedded.com,
        Rob Herring <robh+dt@...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>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: imx8mn-beacon-som: Configure RTC aliases

On Sun, Jan 10, 2021 at 05:53:53AM -0600, Adam Ford wrote:
> On the i.MX8MN Beacon SOM, there is an RTC chip which is fed power
> from the baseboard during power off.  The SNVS RTC integrated into
> the SoC is not fed power.  Depending on the order the modules are
> loaded, this can be a problem if the external RTC isn't rtc0.
> 
> Make the alias for rtc0 point to the external RTC all the time and
> rtc1 point to the SVNS in order to correctly hold date/time over
> a power-cycle.
> 
> Signed-off-by: Adam Ford <aford173@...il.com>

Applied, thanks.