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 --- drivers/rtc/rv3029.c | 27 +++++++++++---------------- 1 files changed, 11 insertions(+), 16 deletions(-)
diff --git a/drivers/rtc/rv3029.c b/drivers/rtc/rv3029.c index e012168..8033695 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, ®_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, ®_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