diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index deb0ff78eba8705b56292d1acf2e206541ee8bf8..54abb26b736639ca54aa7051ae742d6657a501bc 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -47,32 +47,15 @@ static void acpi_sleep_tts_switch(u32 acpi_state)
 	}
 }
 
-static void acpi_sleep_pts_switch(u32 acpi_state)
-{
-	acpi_status status;
-
-	status = acpi_execute_simple_method(NULL, "\\_PTS", acpi_state);
-	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-		/*
-		 * OS can't evaluate the _PTS object correctly. Some warning
-		 * message will be printed. But it won't break anything.
-		 */
-		printk(KERN_NOTICE "Failure in evaluating _PTS object\n");
-	}
-}
-
-static int sleep_notify_reboot(struct notifier_block *this,
+static int tts_notify_reboot(struct notifier_block *this,
 			unsigned long code, void *x)
 {
 	acpi_sleep_tts_switch(ACPI_STATE_S5);
-
-	acpi_sleep_pts_switch(ACPI_STATE_S5);
-
 	return NOTIFY_DONE;
 }
 
-static struct notifier_block sleep_notifier = {
-	.notifier_call	= sleep_notify_reboot,
+static struct notifier_block tts_notifier = {
+	.notifier_call	= tts_notify_reboot,
 	.next		= NULL,
 	.priority	= 0,
 };
@@ -916,9 +899,9 @@ int __init acpi_sleep_init(void)
 	pr_info(PREFIX "(supports%s)\n", supported);
 
 	/*
-	 * Register the sleep_notifier to reboot notifier list so that the _TTS
-	 * and _PTS object can also be evaluated when the system enters S5.
+	 * Register the tts_notifier to reboot notifier list so that the _TTS
+	 * object can also be evaluated when the system enters S5.
 	 */
-	register_reboot_notifier(&sleep_notifier);
+	register_reboot_notifier(&tts_notifier);
 	return 0;
 }
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index fdd3228e06781c4dd150091673e51ba3bdb9ce71..3eb58cb51e5648f87f5d732e33cde8c6cd49569d 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -155,6 +155,7 @@ config TANGOX_WATCHDOG
 config WDAT_WDT
 	tristate "ACPI Watchdog Action Table (WDAT)"
 	depends on ACPI
+	select WATCHDOG_CORE
 	select ACPI_WATCHDOG
 	help
 	  This driver adds support for systems with ACPI Watchdog Action