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[84.226.167.205]) by smtp.googlemail.com with ESMTPSA id c18sm10261967wmk.0.2021.01.12.22.04.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 12 Jan 2021 22:04:12 -0800 (PST) Date: Wed, 13 Jan 2021 07:04:11 +0100 From: Krzysztof Kozlowski To: Adam Ford Subject: Re: [PATCH] arm64: dts: imx8mn-beacon-som: Configure RTC aliases Message-ID: <20210113060411.GA12275@kozik-lap> References: <20210110115354.1259994-1-aford173@gmail.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20210110115354.1259994-1-aford173@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210113_010415_679231_FD7D86C6 X-CRM114-Status: GOOD ( 14.38 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Fabio Estevam , Sascha Hauer , aford@beaconembedded.com, linux-kernel@vger.kernel.org, Rob Herring , NXP Linux Team , Pengutronix Kernel Team , Shawn Guo , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 Reviewed-by: Krzysztof Kozlowski Best regards, Krzysztof _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel