Merge remote-tracking branch 'tip/auto-latest'

[karo-tx-linux.git] / Documentation / ABI / testing / sysfs-power

diff --git a/Documentation/ABI/testing/sysfs-power b/Documentation/ABI/testing/sysfs-power
index f4551816329e17ae8020a256211b499776c19e4b..50b368d490b599f29809e55bbdd0a29535163fa4 100644 (file)
--- a/Documentation/ABI/testing/sysfs-power
+++ b/Documentation/ABI/testing/sysfs-power
@@ -256,3 +256,15 @@ Description:
                Writing a "1" enables this printing while writing a "0"
                disables it.  The default value is "0".  Reading from this file
                will display the current value.
+
+What:          /sys/power/pm_wakeup_irq
+Date:          April 2015
+Contact:       Alexandra Yates <alexandra.yates@linux.intel.org>
+Description:
+               The /sys/power/pm_wakeup_irq file reports to user space 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 output is useful for system wakeup diagnostics of spurious
+               wakeup interrupts.