From e3548537768593cdce96df5d9aa70a1daba57c46 Mon Sep 17 00:00:00 2001 From: Gregory Nutt Date: Tue, 8 Sep 2015 09:18:59 -0600 Subject: [PATCH] Elminiate some warnings --- arch/arm/src/stm32/stm32_rtcc.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/arch/arm/src/stm32/stm32_rtcc.c b/arch/arm/src/stm32/stm32_rtcc.c index 7daecef41fc..c9146e62bb0 100644 --- a/arch/arm/src/stm32/stm32_rtcc.c +++ b/arch/arm/src/stm32/stm32_rtcc.c @@ -609,7 +609,9 @@ static int rtc_interrupt(int irq, void *context) 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 maxretry = 10; 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 */ { - 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 ((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) #elif defined(CONFIG_RTC_LSECLOCK) if ((clksrc & RCC_XXX_RTCSEL_MASK) != RCC_XXX_RTCSEL_LSE) +#endif #endif { tr_bkp = getreg32(STM32_RTC_TR);