diff options
Diffstat (limited to 'drivers/rtc/rtc-pcf2123.c')
| -rw-r--r-- | drivers/rtc/rtc-pcf2123.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c index f22e06070..8895f7772 100644 --- a/drivers/rtc/rtc-pcf2123.c +++ b/drivers/rtc/rtc-pcf2123.c @@ -96,7 +96,7 @@ #define CD_TMR_TE BIT(3) /* Countdown timer enable */ /* PCF2123_REG_OFFSET BITS */ -#define OFFSET_SIGN_BIT BIT(6) /* 2's complement sign bit */ +#define OFFSET_SIGN_BIT 6 /* 2's complement sign bit */ #define OFFSET_COARSE BIT(7) /* Coarse mode offset */ #define OFFSET_STEP (2170) /* Offset step in parts per billion */ @@ -182,7 +182,8 @@ static ssize_t pcf2123_show(struct device *dev, struct device_attribute *attr, } static ssize_t pcf2123_store(struct device *dev, struct device_attribute *attr, - const char *buffer, size_t count) { + const char *buffer, size_t count) +{ struct pcf2123_sysfs_reg *r; unsigned long reg; unsigned long val; @@ -199,7 +200,7 @@ static ssize_t pcf2123_store(struct device *dev, struct device_attribute *attr, if (ret) return ret; - pcf2123_write_reg(dev, reg, val); + ret = pcf2123_write_reg(dev, reg, val); if (ret < 0) return -EIO; return count; @@ -217,7 +218,7 @@ static int pcf2123_read_offset(struct device *dev, long *offset) if (reg & OFFSET_COARSE) reg <<= 1; /* multiply by 2 and sign extend */ else - reg |= (reg & OFFSET_SIGN_BIT) << 1; /* sign extend only */ + reg = sign_extend32(reg, OFFSET_SIGN_BIT); *offset = ((long)reg) * OFFSET_STEP; |