From: Krzysztof Kozlowski <krzk@kernel.org>
To: Adam Ford <aford173@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org, aford@beaconembedded.com,
Rob Herring <robh+dt@kernel.org>, Shawn Guo <shawnguo@kernel.org>,
Sascha Hauer <s.hauer@pengutronix.de>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
NXP Linux Team <linux-imx@nxp.com>,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] arm64: dts: imx8mn-beacon-som: Configure RTC aliases
Date: Wed, 13 Jan 2021 07:04:11 +0100 [thread overview]
Message-ID: <20210113060411.GA12275@kozik-lap> (raw)
In-Reply-To: <20210110115354.1259994-1-aford173@gmail.com>
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@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Best regards,
Krzysztof
next prev parent reply other threads:[~2021-01-13 6:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-10 11:53 [PATCH] arm64: dts: imx8mn-beacon-som: Configure RTC aliases Adam Ford
2021-01-13 6:04 ` Krzysztof Kozlowski [this message]
2021-01-18 0:18 ` Shawn Guo
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