Re: [PATCH V2 03/10] arm64: dts: imx8mp-beacon: Fix RTC capacitive load

From: Frank Li
Date: Wed Apr 16 2025 - 10:42:01 EST


On Tue, Apr 15, 2025 at 08:01:29PM -0500, Adam Ford wrote:
> 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: 25a5ccdce767 ("arm64: dts: freescale: Introduce imx8mp-beacon-kit")
> Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
> ---

Reviewed-by: Frank Li <Frank.Li@xxxxxxx>

> V2: Change commit message, no active changes.
>
> arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi b/arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi
> index 15f7ab58db36..88561df70d03 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi
> +++ b/arch/arm64/boot/dts/freescale/imx8mp-beacon-som.dtsi
> @@ -257,6 +257,7 @@ eeprom@50 {
> rtc: rtc@51 {
> compatible = "nxp,pcf85263";
> reg = <0x51>;
> + quartz-load-femtofarads = <12500>;
> };
> };
>
> --
> 2.48.1
>