diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index c50139207794..f85f3515c258 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -679,7 +679,7 @@ static bool dpm_async_fn(struct device *dev, async_func_t func)
 
 static void async_resume_noirq(void *data, async_cookie_t cookie)
 {
-	struct device *dev = (struct device *)data;
+	struct device *dev = data;
 	int error;
 
 	error = device_resume_noirq(dev, pm_transition, true);
@@ -816,7 +816,7 @@ static int device_resume_early(struct device *dev, pm_message_t state, bool asyn
 
 static void async_resume_early(void *data, async_cookie_t cookie)
 {
-	struct device *dev = (struct device *)data;
+	struct device *dev = data;
 	int error;
 
 	error = device_resume_early(dev, pm_transition, true);
@@ -980,7 +980,7 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
 
 static void async_resume(void *data, async_cookie_t cookie)
 {
-	struct device *dev = (struct device *)data;
+	struct device *dev = data;
 	int error;
 
 	error = device_resume(dev, pm_transition, true);
@@ -1269,7 +1269,7 @@ static int __device_suspend_noirq(struct device *dev, pm_message_t state, bool a
 
 static void async_suspend_noirq(void *data, async_cookie_t cookie)
 {
-	struct device *dev = (struct device *)data;
+	struct device *dev = data;
 	int error;
 
 	error = __device_suspend_noirq(dev, pm_transition, true);
@@ -1450,7 +1450,7 @@ static int __device_suspend_late(struct device *dev, pm_message_t state, bool as
 
 static void async_suspend_late(void *data, async_cookie_t cookie)
 {
-	struct device *dev = (struct device *)data;
+	struct device *dev = data;
 	int error;
 
 	error = __device_suspend_late(dev, pm_transition, true);
@@ -1727,7 +1727,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
 
 static void async_suspend(void *data, async_cookie_t cookie)
 {
-	struct device *dev = (struct device *)data;
+	struct device *dev = data;
 	int error;
 
 	error = __device_suspend(dev, pm_transition, true);