Re: [PATCH 2/4] rtc: s3c: Add time range

From: Alexandre Belloni
Date: Tue Oct 19 2021 - 12:20:34 EST


On 19/10/2021 16:17:22+0300, Sam Protsenko wrote:
> This RTC driver only accepts dates from 2000 to 2099 year. It starts
> counting from 2000 to avoid Y2K problem, and S3C RTC only supports 100
> years range. Provide this info to RTC framework.
>
> Signed-off-by: Sam Protsenko <semen.protsenko@xxxxxxxxxx>
> ---
> drivers/rtc/rtc-s3c.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
> index 10e591794276..d9994efd70ef 100644
> --- a/drivers/rtc/rtc-s3c.c
> +++ b/drivers/rtc/rtc-s3c.c
> @@ -454,6 +454,8 @@ static int s3c_rtc_probe(struct platform_device *pdev)
> }
>
> info->rtc->ops = &s3c_rtcops;
> + info->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
> + info->rtc->range_max = RTC_TIMESTAMP_END_2099;
>

This change is missing the if (year < 0 || year >= 100) removal in
s3c_rtc_settime()

> ret = devm_rtc_register_device(info->rtc);
> if (ret)
> --
> 2.30.2
>

--
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com