6 files changed, 6 insertions, 0 deletions
diff --git a/drivers/watchdog/alim7101_wdt.c b/drivers/watchdog/alim7101_wdt.c
index 689b8a0593c1..c8e3ab056767 100644
--- a/drivers/watchdog/alim7101_wdt.c
+++ b/drivers/watchdog/alim7101_wdt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  *	ALi M7101 PMU Computer Watchdog Timer driver
  *
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
index b5b078bdebe6..b973b31179df 100644
--- a/drivers/watchdog/cpwd.c
+++ b/drivers/watchdog/cpwd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* cpwd.c - driver implementation for hardware watchdog
  * timers found on Sun Microsystems CP1400 and CP1500 boards.
  *
diff --git a/drivers/watchdog/diag288_wdt.c b/drivers/watchdog/diag288_wdt.c
index 806a04a676b7..181440b7b4d0 100644
--- a/drivers/watchdog/diag288_wdt.c
+++ b/drivers/watchdog/diag288_wdt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * Watchdog driver for z/VM and LPAR using the diag 288 interface.
  *
diff --git a/drivers/watchdog/pcwd.c b/drivers/watchdog/pcwd.c
index a3415cf07c98..1b2cf5b95a89 100644
--- a/drivers/watchdog/pcwd.c
+++ b/drivers/watchdog/pcwd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * PC Watchdog Driver
  * by Ken Hollis (khollis@bitgate.com)
diff --git a/drivers/watchdog/pika_wdt.c b/drivers/watchdog/pika_wdt.c
index 8938b3fb2b2d..205c3c68fca1 100644
--- a/drivers/watchdog/pika_wdt.c
+++ b/drivers/watchdog/pika_wdt.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * PIKA FPGA based Watchdog Timer
  *
diff --git a/drivers/watchdog/riowd.c b/drivers/watchdog/riowd.c
index f7f7a7a62022..41a2a11535a6 100644
--- a/drivers/watchdog/riowd.c
+++ b/drivers/watchdog/riowd.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /* riowd.c - driver for hw watchdog inside Super I/O of RIO
  *
  * Copyright (C) 2001, 2008 David S. Miller (davem@davemloft.net)