From: Alexandre Belloni <alexandre.belloni@bootlin.com>
To: Biwen Li <biwen.li@nxp.com>
Cc: a.zummo@towertech.it, leoyang.li@nxp.com,
linux-rtc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: rtc: pcf85363/pcf85263: fix error that failed to run hwclock -w
Date: Wed, 14 Aug 2019 12:09:30 +0200 [thread overview]
Message-ID: <20190814100930.GI3600@piout.net> (raw)
In-Reply-To: <20190814093249.40065-1-biwen.li@nxp.com>
Hi,
On 14/08/2019 17:32:49+0800, Biwen Li wrote:
> Issue:
> # hwclock -w
> hwclock: RTC_SET_TIME: Invalid argument
>
> The patch fixes error when run command hwclock -w
> with rtc pcf85363/pcf85263
>
Could you describe a bit more the issue and what causes it?
IIRC I wrote that code and it works on my pcf85363.
> Signed-off-by: Biwen Li <biwen.li@nxp.com>
> ---
> drivers/rtc/rtc-pcf85363.c | 7 ++++++-
> 1 file changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/rtc/rtc-pcf85363.c b/drivers/rtc/rtc-pcf85363.c
> index a075e77617dc..3450d615974d 100644
> --- a/drivers/rtc/rtc-pcf85363.c
> +++ b/drivers/rtc/rtc-pcf85363.c
> @@ -166,7 +166,12 @@ static int pcf85363_rtc_set_time(struct device *dev, struct rtc_time *tm)
> buf[DT_YEARS] = bin2bcd(tm->tm_year % 100);
>
> ret = regmap_bulk_write(pcf85363->regmap, CTRL_STOP_EN,
> - tmp, sizeof(tmp));
> + tmp, 2);
> + if (ret)
> + return ret;
> +
> + ret = regmap_bulk_write(pcf85363->regmap, DT_100THS,
> + buf, sizeof(tmp) - 2);
> if (ret)
> return ret;
>
> --
> 2.17.1
>
--
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com
next prev parent reply other threads:[~2019-08-14 10:09 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-14 9:32 rtc: pcf85363/pcf85263: fix error that failed to run hwclock -w Biwen Li
2019-08-14 10:09 ` Alexandre Belloni [this message]
2019-08-15 4:20 ` [EXT] " Biwen Li
2019-08-14 18:39 ` Leo Li
2019-08-15 4:14 ` Biwen Li
2019-08-15 18:01 ` Leo Li
2019-08-16 2:40 ` Biwen Li
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