PM / sleep: Increase default DPM watchdog timeout to 120

Recently we have a new report that, the harddisk can not
resume on time due to firmware issues, and got a kernel
panic because of DPM watchdog timeout. So adjust the
default timeout from 60 to 120 to survive on this platform,
and make DPM_WATCHDOG depending on EXPERT.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=117971
Suggested-by: Pavel Machek <pavel@ucw.cz>
Suggested-by: Rafael J. Wysocki <rafael@kernel.org>
Reported-by: Higuita <higuita@gmx.net>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index 68d3ebc12601b6bdea4f9d2c6cfca997a0b6a0dc..e8517b63eb372eaa14b37bc32b616630e25766e1 100644 (file)
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -186,7 +186,7 @@ config PM_SLEEP_DEBUG
 
 config DPM_WATCHDOG
        bool "Device suspend/resume watchdog"
-       depends on PM_DEBUG && PSTORE
+       depends on PM_DEBUG && PSTORE && EXPERT
        ---help---
          Sets up a watchdog timer to capture drivers that are
          locked up attempting to suspend/resume a device.
@@ -197,7 +197,7 @@ config DPM_WATCHDOG
 config DPM_WATCHDOG_TIMEOUT
        int "Watchdog timeout in seconds"
        range 1 120
-       default 60
+       default 120
        depends on DPM_WATCHDOG
 
 config PM_TRACE