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drivers/clock_control: stm32 common: Remove intermediate hclk variable

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CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC is the actual hclk freq (ie core clock);
Remove use of intermediate new_hclk_freq to fix and simplify code.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit is contained in:
Erwan Gouriou 2022-04-05 11:58:17 +02:00 • committed by Carles Cufí
commit efd8ee465c
1 changed files with 3 additions and 8 deletions
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11
drivers/clock_control/clock_stm32_ll_common.c
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@ -362,27 +362,22 @@ int stm32_clock_control_init(const struct device *dev)
ARG_UNUSED(dev); ARG_UNUSED(dev);
/* Some clocks would be activated by default */ /* Some clocks would be activated by default */
config_enable_default_clocks(); config_enable_default_clocks();
#if defined(FLASH_ACR_LATENCY) #if defined(FLASH_ACR_LATENCY)
uint32_t new_hclk_freq;
uint32_t old_flash_freq; uint32_t old_flash_freq;
uint32_t new_flash_freq; uint32_t new_flash_freq;
old_flash_freq = RCC_CALC_FLASH_FREQ(HAL_RCC_GetSysClockFreq(), old_flash_freq = RCC_CALC_FLASH_FREQ(HAL_RCC_GetSysClockFreq(),
GET_CURRENT_FLASH_PRESCALER()); GET_CURRENT_FLASH_PRESCALER());
new_hclk_freq = get_bus_clock(CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC, new_flash_freq = RCC_CALC_FLASH_FREQ(CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC,
STM32_CORE_PRESCALER);
new_flash_freq = RCC_CALC_FLASH_FREQ(new_hclk_freq,
STM32_FLASH_PRESCALER); STM32_FLASH_PRESCALER);
/* If freq increases, set flash latency before any clock setting */ /* If freq increases, set flash latency before any clock setting */
if (new_flash_freq > old_flash_freq) { if (old_flash_freq < CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC) {
LL_SetFlashLatency(new_flash_freq); LL_SetFlashLatency(CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC);
} }
#endif /* FLASH_ACR_LATENCY */ #endif /* FLASH_ACR_LATENCY */