[PATCH 2/2] drivers: rtc: max313xx: Ensure correct date is read after setting

[Chris Packham]

On 20/01/2025 14:59, Mark Tomlinson wrote:
> When setting the time on the MAX31343, the time is not updated
> for one second, and reading the time in this interval will give
> the old time. Wait one second after writing so that the date
> command will show the correct time when setting the clock.
>
> Signed-off-by: Mark Tomlinson <mark.tomlinson at alliedtelesis.co.nz>
> Cc: Chris Packham <judge.packham at gmail.com>
Reviewed-by: Chris Packham <judge.packham at gmail.com>
> ---
>   drivers/rtc/max313xx.c | 5 +++++
>   1 file changed, 5 insertions(+)
>
> diff --git a/drivers/rtc/max313xx.c b/drivers/rtc/max313xx.c
> index ccfd6b6d0e2..2cb3f245041 100644
> --- a/drivers/rtc/max313xx.c
> +++ b/drivers/rtc/max313xx.c
> @@ -307,6 +307,11 @@ static int max313xx_set_time(struct udevice *dev, const struct rtc_time *t)
>   		if (ret)
>   			return ret;
>   
> +		break;
> +	case ID_MAX31343:
> +		/* Time is not updated for 1 second after writing */
> +		/* Sleep here so the date command shows the new time */
> +		mdelay(1000);
>   		break;
>   	default:
>   		break;