PM debug: allow configurable wakeup from suspend on OMAP GPtimer

Using debugfs, export a configurable wakeup timer to be used to
wakeup system from suspend.

If a non-zero value is written to
/debug/pm_debug/wakeup_timer_seconds, A timer wakeup event will wake
the system and resume after the configured number of seconds.

Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c
index 1725da3f4e1..8baa30d2acf 100644
--- a/arch/arm/mach-omap2/pm-debug.c
+++ b/arch/arm/mach-omap2/pm-debug.c
@@ -596,6 +596,8 @@ static int __init pm_dbg_init(void)
                                    &enable_off_mode, &pm_dbg_option_fops);
         (void) debugfs_create_file("sleep_while_idle", S_IRUGO | S_IWUGO, d,
                                    &sleep_while_idle, &pm_dbg_option_fops);
+        (void) debugfs_create_file("wakeup_timer_seconds", S_IRUGO | S_IWUGO, d,
+                                   &wakeup_timer_seconds, &pm_dbg_option_fops);
         pm_dbg_init_done = 1;
 
         return 0;