PM / Sleep: Detect device suspend/resume lockup and log event

[cascardo/linux.git] / kernel / power / Kconfig

diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index d444c4e..2fac9cc 100644 (file)
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -178,6 +178,22 @@ config PM_SLEEP_DEBUG
        def_bool y
        depends on PM_DEBUG && PM_SLEEP
 
+config DPM_WATCHDOG
+       bool "Device suspend/resume watchdog"
+       depends on PM_DEBUG && PSTORE
+       ---help---
+         Sets up a watchdog timer to capture drivers that are
+         locked up attempting to suspend/resume a device.
+         A detected lockup causes system panic with message
+         captured in pstore device for inspection in subsequent
+         boot session.
+
+config DPM_WATCHDOG_TIMEOUT
+       int "Watchdog timeout in seconds"
+       range 1 120
+       default 12
+       depends on DPM_WATCHDOG
+
 config PM_TRACE
        bool
        help