linux-kernel - rtc: pcf85363/pcf85263: fix error that failed to run hwclock -w

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Date:   Wed, 14 Aug 2019 17:32:49 +0800
From:   Biwen Li <biwen.li@....com>
To:     a.zummo@...ertech.it, alexandre.belloni@...tlin.com,
        leoyang.li@....com
Cc:     linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org,
        Biwen Li <biwen.li@....com>
Subject: rtc: pcf85363/pcf85263: fix error that failed to run hwclock -w

Issue:
    # hwclock -w
    hwclock: RTC_SET_TIME: Invalid argument

The patch fixes error when run command hwclock -w
with rtc pcf85363/pcf85263

Signed-off-by: Biwen Li <biwen.li@....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