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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-05-19 13:36:48 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-05-25 12:09:53 +0200
commit3441362b08dc16669adc0e7d3f3454ae38619229 (patch)
treee6ea8cf5b7438f45e90eb7f26ea15e45246476c9 /drivers/acpi
parent9cb1fd0efd195590b828b9b865421ad345a4a145 (diff)
downloadlinux-3441362b08dc16669adc0e7d3f3454ae38619229.tar.bz2
ACPI: PM: s2idle: Print type of wakeup debug messages
Since acpi_s2idle_wake() knows the category of wakeup causing the system to resume from suspend-to-idle, make it print a unique message for each of them to help diagnose wakeup issues. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi')
-rw-r--r--drivers/acpi/sleep.c20
1 files changed, 15 insertions, 5 deletions
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index fd9d4e8318e9..31c9d0c8ae11 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -992,23 +992,31 @@ static bool acpi_s2idle_wake(void)
* wakeup is pending anyway and the SCI is not the source of
* it).
*/
- if (irqd_is_wakeup_armed(irq_get_irq_data(acpi_sci_irq)))
+ if (irqd_is_wakeup_armed(irq_get_irq_data(acpi_sci_irq))) {
+ pm_pr_dbg("Wakeup unrelated to ACPI SCI\n");
return true;
+ }
/*
* If the status bit of any enabled fixed event is set, the
* wakeup is regarded as valid.
*/
- if (acpi_any_fixed_event_status_set())
+ if (acpi_any_fixed_event_status_set()) {
+ pm_pr_dbg("ACPI fixed event wakeup\n");
return true;
+ }
/* Check wakeups from drivers sharing the SCI. */
- if (acpi_check_wakeup_handlers())
+ if (acpi_check_wakeup_handlers()) {
+ pm_pr_dbg("ACPI custom handler wakeup\n");
return true;
+ }
/* Check non-EC GPE wakeups and dispatch the EC GPE. */
- if (acpi_ec_dispatch_gpe())
+ if (acpi_ec_dispatch_gpe()) {
+ pm_pr_dbg("ACPI non-EC GPE wakeup\n");
return true;
+ }
/*
* Cancel the SCI wakeup and process all pending events in case
@@ -1027,8 +1035,10 @@ static bool acpi_s2idle_wake(void)
* are pending here, they must be resulting from the processing
* of EC events above or coming from somewhere else.
*/
- if (pm_wakeup_pending())
+ if (pm_wakeup_pending()) {
+ pm_pr_dbg("Wakeup after ACPI Notify sync\n");
return true;
+ }
rearm_wake_irq(acpi_sci_irq);
}