diff options
Diffstat (limited to 'drivers/rtc/rtc-s5m.c')
| -rw-r--r-- | drivers/rtc/rtc-s5m.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c index 22137d4dbadf..3751ef90f93c 100644 --- a/drivers/rtc/rtc-s5m.c +++ b/drivers/rtc/rtc-s5m.c @@ -519,6 +519,13 @@ static int s5m8767_rtc_init_reg(struct s5m_rtc_info *info) u8 data[2]; int ret; + /* UDR update time. Default of 7.32 ms is too long. */ + ret = regmap_update_bits(info->regmap, S5M_RTC_UDR_CON, + S5M_RTC_UDR_T_MASK, S5M_RTC_UDR_T_450_US); + if (ret < 0) + dev_err(info->dev, "%s: fail to change UDR time: %d\n", + __func__, ret); + /* Set RTC control register : Binary mode, 24hour mode */ data[0] = (1 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT); data[1] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT); |