arm64: dts: imx8mn-beacon: Fix RTC capacitive load

[ Upstream commit c3f03bec30efd5082b55876846d57b5d17dae7b9 ]

Although not noticeable when used every day, the RTC appears to drift when
left to sit over time.  This is due to the capacitive load not being
properly set. Fix RTC drift by correcting the capacitive load setting
from 7000 to 12500, which matches the actual hardware configuration.

Fixes: 36ca3c8ccb53 ("arm64: dts: imx: Add Beacon i.MX8M Nano development kit")
Signed-off-by: Adam Ford <aford173@gmail.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi
index 1133cded9be2fec7d1e82c59c5703cd83b5428d8..c4b1c6029c9a938a99cc73cbc98e499e1c89ca37 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn-beacon-som.dtsi
@@ -240,6 +240,7 @@
        rtc: rtc@51 {
                compatible = "nxp,pcf85263";
                reg = <0x51>;
+               quartz-load-femtofarads = <12500>;
        };
 };