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authorWolfgang Denk <wd@denx.de>2011-11-04 15:55:13 +0000
committerWolfgang Denk <wd@denx.de>2011-11-07 22:09:54 +0100
commitb633741bcd0d41573b0c9ca22db0ed83600c4ae3 (patch)
tree51a6b1d36eecceca348ad2f902b883e0bbf1b5b8 /drivers
parent397b40caf2eacec576c72eb52144383f11ae7688 (diff)
downloadblackbird-obmc-uboot-b633741bcd0d41573b0c9ca22db0ed83600c4ae3.tar.gz
blackbird-obmc-uboot-b633741bcd0d41573b0c9ca22db0ed83600c4ae3.zip
drivers/rtc/rv3029.c: fix GCC 4.6 build warnings
Fix: rv3029.c: In function 'rtc_set': rv3029.c:98:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] rv3029.c: In function 'set_eere_bit': rv3029.c:131:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] rv3029.c: In function 'wait_eebusy': rv3029.c:149:9: warning: variable 'ret' set but not used [-Wunused-but-set-variable] rv3029.c: In function 'rtc_reset': rv3029.c:165:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable] Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/rtc/rv3029.c27
1 files changed, 11 insertions, 16 deletions
diff --git a/drivers/rtc/rv3029.c b/drivers/rtc/rv3029.c
index e01216844a..8033695ba6 100644
--- a/drivers/rtc/rv3029.c
+++ b/drivers/rtc/rv3029.c
@@ -84,12 +84,10 @@ int rtc_get( struct rtc_time *tmp )
tmp->tm_yday = 0;
tmp->tm_isdst = 0;
-#ifdef RTC_DEBUG
- printf( "Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
+ debug( "Get DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec );
-#endif
return 0;
}
@@ -97,11 +95,10 @@ int rtc_set( struct rtc_time *tmp )
{
int ret;
unsigned char buf[RTC_RV3029_PAGE_LEN];
-#ifdef RTC_DEBUG
- printf( "Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
+
+ debug( "Set DATE: %4d-%02d-%02d (wday=%d) TIME: %2d:%02d:%02d\n",
tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,
tmp->tm_hour, tmp->tm_min, tmp->tm_sec);
-#endif
if (tmp->tm_year < 2000) {
printf("RTC: year %d < 2000 not possible\n", tmp->tm_year);
@@ -122,16 +119,15 @@ int rtc_set( struct rtc_time *tmp )
/* give the RTC some time to update */
udelay(1000);
- return 0;
+ return ret;
}
/* sets EERE-Bit (automatic EEPROM refresh) */
static void set_eere_bit(int state)
{
- int ret;
unsigned char reg_ctrl1;
- ret = i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CTRL1, 1,
+ (void)i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CTRL1, 1,
&reg_ctrl1, 1);
if (state)
@@ -139,18 +135,18 @@ static void set_eere_bit(int state)
else
reg_ctrl1 &= (~RTC_RV3029_CTRL1_EERE);
- ret = i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CTRL1, 1,
+ (void)i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CTRL1, 1,
&reg_ctrl1, 1);
}
/* waits until EEPROM page is no longer busy (times out after 10ms*loops) */
static int wait_eebusy(int loops)
{
- int i, ret;
+ int i;
unsigned char ctrl_status;
for (i = 0; i < loops; i++) {
- ret = i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CTRL_STATUS,
+ (void)i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CTRL_STATUS,
1, &ctrl_status, 1);
if ((ctrl_status & RTC_RV3029_CTRLS_EEBUSY) == 0)
@@ -162,11 +158,10 @@ static int wait_eebusy(int loops)
void rtc_reset (void)
{
- int ret;
unsigned char buf[RTC_RV3029_PAGE_LEN];
buf[0] = RTC_RV3029_CTRL_SYS_R;
- ret = i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CTRL_RESET, 1,
+ (void)i2c_write(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_CTRL_RESET, 1,
buf, 1);
#if defined(CONFIG_SYS_RV3029_TCR)
@@ -178,7 +173,7 @@ void rtc_reset (void)
set_eere_bit(0);
wait_eebusy(100);
/* read current trickle charger setting */
- ret = i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_EEPROM_CTRL,
+ (void)i2c_read(CONFIG_SYS_I2C_RTC_ADDR, RTC_RV3029_EEPROM_CTRL,
1, buf, 1);
/* enable automatic EEPROM refresh again */
set_eere_bit(1);
@@ -195,7 +190,7 @@ void rtc_reset (void)
*/
set_eere_bit(0);
wait_eebusy(100);
- ret = i2c_write(CONFIG_SYS_I2C_RTC_ADDR,
+ (void)i2c_write(CONFIG_SYS_I2C_RTC_ADDR,
RTC_RV3029_EEPROM_CTRL, 1, buf, 1);
/*
* it is necessary to wait 10ms before EEBUSY-Bit may be read
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