[stm32][drv_tim.c] enable timer clock

bsp/stm32/libraries/HAL_Drivers/drv_tim.c

@@ -366,22 +366,14 @@ static void timer_init(struct rt_hwtimer_device *timer, rt_uint32_t state)
             LOG_E("%s init failed", tim_device->name);
             return;
         }
-        else
-        {
-            /* set the TIMx priority */
-            HAL_NVIC_SetPriority(tim_device->tim_irqn, 3, 0);
-
-            /* enable the TIMx global Interrupt */
-            HAL_NVIC_EnableIRQ(tim_device->tim_irqn);
-
-            /* clear update flag */
-            __HAL_TIM_CLEAR_FLAG(tim, TIM_FLAG_UPDATE);
-            /* enable update request source */
-            __HAL_TIM_URS_ENABLE(tim);
 
+        stm32_tim_enable_clock(tim);
+        HAL_NVIC_SetPriority(tim_device->tim_irqn, 3, 0); /* set the TIMx priority */
+        HAL_NVIC_EnableIRQ(tim_device->tim_irqn); /* enable the TIMx global Interrupt */
+        __HAL_TIM_CLEAR_FLAG(tim, TIM_FLAG_UPDATE); /* clear update flag */
+        __HAL_TIM_URS_ENABLE(tim); /* enable update request source */
         LOG_D("%s init success", tim_device->name);
     }
-    }
 }
 
 static rt_err_t timer_start(rt_hwtimer_t *timer, rt_uint32_t t, rt_hwtimer_mode_t opmode)