Commits
Grygorii Strashko committed 590e9ef03f6
PM / wakeirq: report a wakeup_event on dedicated wekup irq
There are two reasons for reporting wakeup event when dedicated wakeup
IRQ is triggered:
- wakeup events accounting, so proper statistical data will be
displayed in sysfs and debugfs;
- there are small window when System is entering suspend during which
dedicated wakeup IRQ can be lost:
dpm_suspend_noirq()
|- device_wakeup_arm_wake_irqs()
|- dev_pm_arm_wake_irq(X)
|- IRQ is enabled and marked as wakeup source
[1]...
|- suspend_device_irqs()
|- suspend_device_irq(X)
|- irqd_set(X, IRQD_WAKEUP_ARMED);
|- wakup IRQ armed
The wakeup IRQ can be lost if it's triggered at point [1]
and not armed yet.
Hence, fix above cases by adding simple pm_wakeup_event() call in
handle_threaded_wake_irq().
Upstream patch: https://patchwork.kernel.org/patch/9570745/
Fixes: 4990d4fe327b ("PM / Wakeirq: Add automated device wake IRQ
handling")
Cc: Brian Norris <briannorris@chromium.org>
Cc: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Tested-by: Keerthy <j-keerthy@ti.com>
[tony@atomide.com: added missing return to avoid warnings]
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>