diff --git a/drivers/staging/greybus/gbphy.c b/drivers/staging/greybus/gbphy.c
index 6adcad2..3068bd7 100644
--- a/drivers/staging/greybus/gbphy.c
+++ b/drivers/staging/greybus/gbphy.c
@@ -53,7 +53,6 @@ static void gbphy_dev_release(struct device *dev)
 #ifdef CONFIG_PM
 static int gb_gbphy_idle(struct device *dev)
 {
-	pm_runtime_mark_last_busy(dev);
 	pm_request_autosuspend(dev);
 	return 0;
 }