4 files changed, 4 insertions, 0 deletions
diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c
index 552ff7ac5a6b..2b45b0517b3d 100644
--- a/drivers/usb/common/common.c
+++ b/drivers/usb/common/common.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Provides code common for host and device side USB.
  *
diff --git a/drivers/usb/common/led.c b/drivers/usb/common/led.c
index df23da00a901..fd5538c8e067 100644
--- a/drivers/usb/common/led.c
+++ b/drivers/usb/common/led.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * LED Triggers for USB Activity
  *
diff --git a/drivers/usb/common/ulpi.c b/drivers/usb/common/ulpi.c
index 4aa5195db8ea..73c38258eec7 100644
--- a/drivers/usb/common/ulpi.c
+++ b/drivers/usb/common/ulpi.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /**
  * ulpi.c - USB ULPI PHY bus
  *
diff --git a/drivers/usb/common/usb-otg-fsm.c b/drivers/usb/common/usb-otg-fsm.c
index b8fe31e409a5..f960d5374ee0 100644
--- a/drivers/usb/common/usb-otg-fsm.c
+++ b/drivers/usb/common/usb-otg-fsm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * OTG Finite State Machine from OTG spec
  *