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Elminiate some warnings

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This commit is contained in:
Gregory Nutt 2015-09-08 09:18:59 -06:00
parent d8c83218fe
commit e354853776
1 changed files with 8 additions and 2 deletions
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10
arch/arm/src/stm32/stm32_rtcc.c
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@ -609,7 +609,9 @@ static int rtc_interrupt(int irq, void *context)
int up_rtcinitialize(void) int up_rtcinitialize(void)
{ {
uint32_t regval, clksrc, tr_bkp, dr_bkp; uint32_t regval;
uint32_t tr_bkp;
uint32_t dr_bkp;
int ret; int ret;
int maxretry = 10; int maxretry = 10;
int nretry = 0; int nretry = 0;
@ -665,7 +667,10 @@ int up_rtcinitialize(void)
} }
else /* The RTC is already in use: check if the clock source is changed */ else /* The RTC is already in use: check if the clock source is changed */
{ {
clksrc = getreg32(STM32_RCC_XXX); #if defined(CONFIG_RTC_HSECLOCK) || defined(CONFIG_RTC_LSICLOCK) || \
defined(CONFIG_RTC_LSECLOCK)
uint32_t clksrc = getreg32(STM32_RCC_XXX);
#if defined(CONFIG_RTC_HSECLOCK) #if defined(CONFIG_RTC_HSECLOCK)
if ((clksrc & RCC_XXX_RTCSEL_MASK) != RCC_XXX_RTCSEL_HSE) if ((clksrc & RCC_XXX_RTCSEL_MASK) != RCC_XXX_RTCSEL_HSE)
@ -673,6 +678,7 @@ int up_rtcinitialize(void)
if ((clksrc & RCC_XXX_RTCSEL_MASK) != RCC_XXX_RTCSEL_LSI) if ((clksrc & RCC_XXX_RTCSEL_MASK) != RCC_XXX_RTCSEL_LSI)
#elif defined(CONFIG_RTC_LSECLOCK) #elif defined(CONFIG_RTC_LSECLOCK)
if ((clksrc & RCC_XXX_RTCSEL_MASK) != RCC_XXX_RTCSEL_LSE) if ((clksrc & RCC_XXX_RTCSEL_MASK) != RCC_XXX_RTCSEL_LSE)
#endif
#endif #endif
{ {
tr_bkp = getreg32(STM32_RTC_TR); tr_bkp = getreg32(STM32_RTC_TR);