diff --git a/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt b/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
index e60b9a13bdcb..aa10b8ec36e2 100644
--- a/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
+++ b/Documentation/devicetree/bindings/watchdog/davinci-wdt.txt
@@ -11,8 +11,8 @@ Optional properties:
 	   See clock-bindings.txt
 
 Documentation:
-Davinci DM646x - http://www.ti.com/lit/ug/spruer5b/spruer5b.pdf
-Keystone - http://www.ti.com/lit/ug/sprugv5a/sprugv5a.pdf
+Davinci DM646x - https://www.ti.com/lit/ug/spruer5b/spruer5b.pdf
+Keystone - https://www.ti.com/lit/ug/sprugv5a/sprugv5a.pdf
 
 Examples:
 
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 4f4687c46d38..ab7aad5a1e69 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1027,7 +1027,7 @@ config ADVANTECH_WDT
 	  If you are configuring a Linux kernel for the Advantech single-board
 	  computer, say `Y' here to support its built-in watchdog timer
 	  feature. More information can be found at
-	  <http://www.advantech.com.tw/products/>
+	  <https://www.advantech.com.tw/products/>
 
 config ALIM1535_WDT
 	tristate "ALi M1535 PMU Watchdog Timer"
diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index 4fec2c6a3c01..32d0e1781e63 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * Copyright 2010-2011 Picochip Ltd., Jamie Iles
- * http://www.picochip.com
+ * https://www.picochip.com
  *
  * This file implements a driver for the Synopsys DesignWare watchdog device
  * in the many subsystems. The watchdog has 16 different timeout periods
diff --git a/drivers/watchdog/nv_tco.c b/drivers/watchdog/nv_tco.c
index d15ad8583a59..f6902a337422 100644
--- a/drivers/watchdog/nv_tco.c
+++ b/drivers/watchdog/nv_tco.c
@@ -7,7 +7,7 @@
  *	Based off i8xx_tco.c:
  *	(c) Copyright 2000 kernel concepts <nils@kernelconcepts.de>, All Rights
  *	Reserved.
- *				http://www.kernelconcepts.de
+ *				https://www.kernelconcepts.de
  *
  *	TCO timer driver for NV chipsets
  *	based on softdog.c by Alan Cox <alan@redhat.com>
diff --git a/drivers/watchdog/nv_tco.h b/drivers/watchdog/nv_tco.h
index d325e528010f..c65f82588386 100644
--- a/drivers/watchdog/nv_tco.h
+++ b/drivers/watchdog/nv_tco.h
@@ -9,7 +9,7 @@
  *
  *	(c) Copyright 2000 kernel concepts <nils@kernelconcepts.de>, All Rights
  *	Reserved.
- *				http://www.kernelconcepts.de
+ *				https://www.kernelconcepts.de
  *
  *	Neither kernel concepts nor Nils Faerber admit liability nor provide
  *	warranty for any of this software. This material is provided
diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c
index 93bd302ae7c5..85e9664318c9 100644
--- a/drivers/watchdog/sp5100_tco.c
+++ b/drivers/watchdog/sp5100_tco.c
@@ -7,7 +7,7 @@
  *	Based on i8xx_tco.c:
  *	(c) Copyright 2000 kernel concepts <nils@kernelconcepts.de>, All Rights
  *	Reserved.
- *				http://www.kernelconcepts.de
+ *				https://www.kernelconcepts.de
  *
  *	See AMD Publication 43009 "AMD SB700/710/750 Register Reference Guide",
  *	    AMD Publication 45482 "AMD SB800-Series Southbridges Register