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soc: rockchip: rockchip_system_monitor: Add early suspend debug

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Add early_suspend_debug module parameter to enable print early
suspend call time.

Signed-off-by: Tao Huang <huangtao@rock-chips.com>
Change-Id: Iebcd55db18f87091392932efa3056b3b8d3c06be
This commit is contained in:
Tao Huang
2024-03-20 19:33:35 +08:00
parent 71f567ab13
commit 51233ecd61
1 changed files with 31 additions and 2 deletions
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33
drivers/soc/rockchip/rockchip_system_monitor.c
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@@ -103,6 +103,9 @@ static DEFINE_MUTEX(early_suspend_mutex);
static LIST_HEAD(early_suspend_list);
static bool is_early_suspend;
static bool early_suspend_debug;
module_param(early_suspend_debug, bool, 0644);
void register_early_suspend(struct early_suspend *handler)
{
struct list_head *pos;
@@ -142,8 +145,21 @@ void rockchip_request_early_suspend(void)
if (is_early_suspend)
goto unlock;
list_for_each_entry(pos, &early_suspend_list, link) {
if (pos->suspend != NULL)
if (pos->suspend != NULL) {
bool debug = early_suspend_debug;
ktime_t calltime, rettime;
if (debug) {
printk(KERN_DEBUG "early_suspend: calling %pS\n", pos->suspend);
calltime = ktime_get();
}
pos->suspend(pos);
if (debug) {
rettime = ktime_get();
printk(KERN_DEBUG "early_suspend: %pS returned after %lld usecs\n",
pos->suspend, ktime_us_delta(rettime, calltime));
}
}
}
is_early_suspend = true;
unlock:
@@ -159,8 +175,21 @@ void rockchip_request_late_resume(void)
if (!is_early_suspend)
goto unlock;
list_for_each_entry_reverse(pos, &early_suspend_list, link) {
if (pos->resume != NULL)
if (pos->resume != NULL) {
bool debug = early_suspend_debug;
ktime_t calltime, rettime;
if (debug) {
printk(KERN_DEBUG "late_resume: calling %pS\n", pos->resume);
calltime = ktime_get();
}
pos->resume(pos);
if (debug) {
rettime = ktime_get();
printk(KERN_DEBUG "late_resume: %pS returned after %lld usecs\n",
pos->resume, ktime_us_delta(rettime, calltime));
}
}
}
is_early_suspend = false;
unlock: