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drivers: hci: stm32wb: LSE clock configuration not required

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As long as LSE clock is set in device tree, configuration will be
done in clock control driver, no need to do it here.
Besides, remove back up domain related code as this is also already
handled in clock_control driver.

Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This commit is contained in:
Erwan Gouriou 2022-12-13 17:21:57 +01:00 • committed by Carles Cufí
commit 079a43d9f8
1 changed files with 0 additions and 17 deletions
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17
drivers/bluetooth/hci/ipm_stm32wb.c
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@ -387,25 +387,8 @@ static int bt_ipm_send(struct net_buf *buf)
static void start_ble_rf(void)
{
if ((LL_RCC_IsActiveFlag_PINRST()) && (!LL_RCC_IsActiveFlag_SFTRST())) {
/* Simulate power off reset */
LL_PWR_EnableBkUpAccess();
LL_PWR_EnableBkUpAccess();
LL_RCC_ForceBackupDomainReset();
LL_RCC_ReleaseBackupDomainReset();
}
#if STM32_LSE_ENABLED
/* Configure driving capability */
LL_RCC_LSE_SetDriveCapability(STM32_LSE_DRIVING << RCC_BDCR_LSEDRV_Pos);
/* Select LSE clock */
LL_RCC_LSE_Enable();
while (!LL_RCC_LSE_IsReady()) {
}
/* Select wakeup source of BLE RF */
LL_RCC_SetRFWKPClockSource(LL_RCC_RFWKP_CLKSOURCE_LSE);
#endif
/* HSI48 clock and CLK48 clock source are enabled using the device tree */
#if !STM32_HSI48_ENABLED