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drivers: clock_control: stm32: Enable SYSCFG on STM32L0

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The entropy driver needs to use the SYSCFG block to control VREF on
the STM32L0. Clock the block if the entropy driver has been enabled.

Signed-off-by: Andreas Sandberg <andreas@sandberg.pp.se>
This commit is contained in:
Andreas Sandberg 2020-05-08 12:33:36 +01:00 • committed by Ioannis Glaropoulos
commit f1d80b3f02
1 changed files with 3 additions and 1 deletions
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4
drivers/clock_control/clock_stm32l0_l1.c
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@ -38,7 +38,9 @@ void config_pll_init(LL_UTILS_PLLInitTypeDef *pllinit)
*/ */
void config_enable_default_clocks(void) void config_enable_default_clocks(void)
{ {
#if defined(CONFIG_EXTI_STM32) || defined(CONFIG_USB_DC_STM32) #if defined(CONFIG_EXTI_STM32) || defined(CONFIG_USB_DC_STM32) || \
(defined(CONFIG_SOC_SERIES_STM32L0X) && \
defined(CONFIG_ENTROPY_STM32_RNG))
/* Enable System Configuration Controller clock. */ /* Enable System Configuration Controller clock. */
LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SYSCFG); LL_APB2_GRP1_EnableClock(LL_APB2_GRP1_PERIPH_SYSCFG);
#endif #endif