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| author |   Alexandra Yates <alexandra.yates@linux.intel.com> | 2015-09-15 10:32:46 -0700 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-09-16 14:20:41 +0200 |
| commit | a6f5f0dd4e21191ce35030dd4d6421e1cca10ee4 (patch) | |
| tree | d11055309f1b697fe91aadaf327dace3412b31f1 /kernel/irq/pm.c | |
| parent | Linux 4.3-rc1 (diff) | |
| download | wireguard-linux-a6f5f0dd4e21191ce35030dd4d6421e1cca10ee4.tar.xz wireguard-linux-a6f5f0dd4e21191ce35030dd4d6421e1cca10ee4.zip | |
PM / sleep: Report interrupt that caused system wakeup
Add a sysfs attribute, /sys/power/pm_wakeup_irq, reporting the IRQ
number of the first wakeup interrupt (that is, the first interrupt
from an IRQ line armed for system wakeup) seen by the kernel during
the most recent system suspend/resume cycle.
This feature will be useful for system wakeup diagnostics of
spurious wakeup interrupts.
Signed-off-by: Alexandra Yates <alexandra.yates@linux.intel.com>
[ rjw: Fixed up pm_wakeup_irq definition ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'kernel/irq/pm.c')
| -rw-r--r-- | kernel/irq/pm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c index 21c62617a35a..e80c4400118a 100644 --- a/kernel/irq/pm.c +++ b/kernel/irq/pm.c @@ -21,7 +21,7 @@ bool irq_pm_check_wakeup(struct irq_desc *desc) desc->istate |= IRQS_SUSPENDED | IRQS_PENDING; desc->depth++; irq_disable(desc); - pm_system_wakeup(); + pm_system_irq_wakeup(irq_desc_get_irq(desc)); return true; } return false; |