i2c: stm32: drop few redundant guards

Drop few CONFIG_PM_DEVICE_RUNTIME guards, the pm_device_runtime
functions they are masking are no-op automatically when the
corresponding config option is not selected.

Signed-off-by: Fabio Baltieri <fabiobaltieri@google.com>

drivers/i2c/i2c_ll_stm32.c

@@ -194,9 +194,7 @@ static int i2c_stm32_transfer(const struct device *dev, struct i2c_msg *msg,
 	k_sem_take(&data->bus_mutex, K_FOREVER);
 
 	/* Prevent driver from being suspended by PM until I2C transaction is complete */
-#ifdef CONFIG_PM_DEVICE_RUNTIME
 	(void)pm_device_runtime_get(dev);
-#endif
 
 	/* Prevent the clocks to be stopped during the i2c transaction */
 	pm_policy_state_lock_get(PM_STATE_SUSPEND_TO_IDLE, PM_ALL_SUBSTATES);
@@ -220,9 +218,7 @@ static int i2c_stm32_transfer(const struct device *dev, struct i2c_msg *msg,
 
 	pm_policy_state_lock_put(PM_STATE_SUSPEND_TO_IDLE, PM_ALL_SUBSTATES);
 
-#ifdef CONFIG_PM_DEVICE_RUNTIME
 	(void)pm_device_runtime_put(dev);
-#endif
 
 	k_sem_give(&data->bus_mutex);
 
@@ -388,9 +384,7 @@ static int i2c_stm32_init(const struct device *dev)
 		return ret;
 	}
 
-#ifdef CONFIG_PM_DEVICE_RUNTIME
 	(void)pm_device_runtime_enable(dev);
-#endif
 
 	data->is_configured = true;
 

drivers/i2c/i2c_ll_stm32_v2.c

@@ -436,7 +436,6 @@ int i2c_stm32_target_register(const struct device *dev,
 		return ret;
 	}
 
-#if defined(CONFIG_PM_DEVICE_RUNTIME)
 	/* Mark device as active */
 	(void)pm_device_runtime_get(dev);
 
@@ -445,7 +444,6 @@ int i2c_stm32_target_register(const struct device *dev,
 		LOG_DBG("i2c: enabling wakeup from stop");
 		LL_I2C_EnableWakeUpFromStop(cfg->i2c);
 	}
-#endif /* defined(CONFIG_PM_DEVICE_RUNTIME) */
 
 	LL_I2C_Enable(i2c);
 
@@ -528,7 +526,6 @@ int i2c_stm32_target_unregister(const struct device *dev,
 		LL_I2C_Disable(i2c);
 	}
 
-#if defined(CONFIG_PM_DEVICE_RUNTIME)
 	if (pm_device_wakeup_is_capable(dev)) {
 		/* Disable wake-up from STOP */
 		LOG_DBG("i2c: disabling wakeup from stop");
@@ -537,7 +534,6 @@ int i2c_stm32_target_unregister(const struct device *dev,
 
 	/* Release the device */
 	(void)pm_device_runtime_put(dev);
-#endif /* defined(CONFIG_PM_DEVICE_RUNTIME) */
 
 	data->slave_attached = false;