diff options
| -rw-r--r-- | drivers/rtc/rx8025.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/drivers/rtc/rx8025.c b/drivers/rtc/rx8025.c index 9423a1bb822..1394c2306a4 100644 --- a/drivers/rtc/rx8025.c +++ b/drivers/rtc/rx8025.c @@ -214,11 +214,14 @@ static int rx8025_rtc_reset(struct udevice *dev) */ static int rtc_write(struct udevice *dev, uchar reg, uchar val) { - uchar buf[2]; - buf[0] = reg << 4; - buf[1] = val; + /* The RX8025/RX8035 uses the top 4 bits of the + * 'offset' byte as the start register address, + * and the bottom 4 bits as a 'transfer' mode setting + * (only applicable for reads) + */ + u8 offset = (reg << 4); - if (dm_i2c_write(dev, 0, buf, 2)) { + if (dm_i2c_reg_write(dev, offset, val)) { printf("Error writing to RTC\n"); return -EIO; } |