From: Shawn Guo <shawnguo@kernel.org>
To: Adam Ford <aford173@gmail.com>
Cc: devicetree@vger.kernel.org, Sascha Hauer <s.hauer@pengutronix.de>,
aford@beaconembedded.com, linux-kernel@vger.kernel.org,
Rob Herring <robh+dt@kernel.org>,
NXP Linux Team <linux-imx@nxp.com>,
Pengutronix Kernel Team <kernel@pengutronix.de>,
Fabio Estevam <festevam@gmail.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH V2 1/2] arm64: dts: imx8mm-beacon-som: Configure RTC aliases
Date: Tue, 1 Dec 2020 09:50:08 +0800 [thread overview]
Message-ID: <20201201015000.GV4072@dragon> (raw)
In-Reply-To: <20201126104535.1075658-1-aford173@gmail.com>
On Thu, Nov 26, 2020 at 04:45:34AM -0600, Adam Ford wrote:
> On the i.MX8MM 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>
Applied both, thanks.
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WARNING: multiple messages have this Message-ID (diff)
From: Shawn Guo <shawnguo@kernel.org>
To: Adam Ford <aford173@gmail.com>
Cc: linux-arm-kernel@lists.infradead.org, aford@beaconembedded.com,
Rob Herring <robh+dt@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 V2 1/2] arm64: dts: imx8mm-beacon-som: Configure RTC aliases
Date: Tue, 1 Dec 2020 09:50:08 +0800 [thread overview]
Message-ID: <20201201015000.GV4072@dragon> (raw)
In-Reply-To: <20201126104535.1075658-1-aford173@gmail.com>
On Thu, Nov 26, 2020 at 04:45:34AM -0600, Adam Ford wrote:
> On the i.MX8MM 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>
Applied both, thanks.
next prev parent reply other threads:[~2020-12-01 1:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-26 10:45 [PATCH V2 1/2] arm64: dts: imx8mm-beacon-som: Configure RTC aliases Adam Ford
2020-11-26 10:45 ` Adam Ford
2020-11-26 10:45 ` [PATCH V2 2/2] arm64: dts: imx8mm-beacon-som: Assign PMIC clock Adam Ford
2020-11-26 10:45 ` Adam Ford
2020-12-01 1:50 ` Shawn Guo [this message]
2020-12-01 1:50 ` [PATCH V2 1/2] arm64: dts: imx8mm-beacon-som: Configure RTC aliases Shawn Guo
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