summaryrefslogtreecommitdiff
path: root/drivers/rtc/m41t62.c
diff options
context:
space:
mode:
authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2008-09-01 23:06:23 +0200
committerWolfgang Denk <wd@denx.de>2008-09-07 00:56:36 +0200
commitd1e2319414ea5218ba801163e4530ecf2dfcbf36 (patch)
tree78c74e4a7a154c267bfcc1812d3493f7d4f979c9 /drivers/rtc/m41t62.c
parentee9536a28cb149bcb6c5dee9d08c62c91f4c72d2 (diff)
downloadu-boot-imx-d1e2319414ea5218ba801163e4530ecf2dfcbf36.zip
u-boot-imx-d1e2319414ea5218ba801163e4530ecf2dfcbf36.tar.gz
u-boot-imx-d1e2319414ea5218ba801163e4530ecf2dfcbf36.tar.bz2
rtc: allow rtc_set to return an error and use it in cmd_date
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'drivers/rtc/m41t62.c')
-rw-r--r--drivers/rtc/m41t62.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/rtc/m41t62.c b/drivers/rtc/m41t62.c
index 89d4ccd..9b7c84a 100644
--- a/drivers/rtc/m41t62.c
+++ b/drivers/rtc/m41t62.c
@@ -96,7 +96,7 @@ int rtc_get(struct rtc_time *tm)
return 0;
}
-void rtc_set(struct rtc_time *tm)
+int rtc_set(struct rtc_time *tm)
{
u8 buf[M41T62_DATETIME_REG_SIZE];
@@ -123,8 +123,12 @@ void rtc_set(struct rtc_time *tm)
/* assume 20YY not 19YY */
buf[M41T62_REG_YEAR] = BIN2BCD(tm->tm_year % 100);
- if (i2c_write(CFG_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE))
+ if (i2c_write(CFG_I2C_RTC_ADDR, 0, 1, buf, M41T62_DATETIME_REG_SIZE)) {
printf("I2C write failed in %s()\n", __func__);
+ return -1;
+ }
+
+ return 0;
}
void rtc_reset(void)