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earlysuspend: add verbose debug flag

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when enabled, prints out the function of each handler as they are called

Change-Id: I5ed251867e0e3aa3cd05f030ff3579808cedd0c2
Signed-off-by: Erik Gilling <konkers@android.com>
This commit is contained in:
Erik Gilling
2011-07-21 14:07:45 -07:00
parent d74348cebf
commit fec502d9a1
1 changed files with 12 additions and 3 deletions
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15
kernel/power/earlysuspend.c
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@@ -26,6 +26,7 @@
enum {
DEBUG_USER_STATE = 1U << 0,
DEBUG_SUSPEND = 1U << 2,
DEBUG_VERBOSE = 1U << 3,
};
static int debug_mask = DEBUG_USER_STATE;
module_param_named(debug_mask, debug_mask, int, S_IRUGO | S_IWUSR | S_IWGRP);
@@ -94,8 +95,11 @@ static void early_suspend(struct work_struct *work)
if (debug_mask & DEBUG_SUSPEND)
pr_info("early_suspend: call handlers\n");
list_for_each_entry(pos, &early_suspend_handlers, link) {
if (pos->suspend != NULL)
if (pos->suspend != NULL) {
if (debug_mask & DEBUG_VERBOSE)
pr_info("early_suspend: calling %pf\n", pos->suspend);
pos->suspend(pos);
}
}
mutex_unlock(&early_suspend_lock);
@@ -131,9 +135,14 @@ static void late_resume(struct work_struct *work)
}
if (debug_mask & DEBUG_SUSPEND)
pr_info("late_resume: call handlers\n");
list_for_each_entry_reverse(pos, &early_suspend_handlers, link)
if (pos->resume != NULL)
list_for_each_entry_reverse(pos, &early_suspend_handlers, link) {
if (pos->resume != NULL) {
if (debug_mask & DEBUG_VERBOSE)
pr_info("late_resume: calling %pf\n", pos->resume);
pos->resume(pos);
}
}
if (debug_mask & DEBUG_SUSPEND)
pr_info("late_resume: done\n");
abort: