From: tony@atomide.com (Tony Lindgren)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH] PM / wakeirq: fix wakeirq setting after wakup re-configuration from sysfs
Date: Thu, 7 Apr 2016 10:56:01 -0700 [thread overview]
Message-ID: <20160407175600.GN16484@atomide.com> (raw)
In-Reply-To: <1459943153-2553-1-git-send-email-grygorii.strashko@ti.com>
* Grygorii Strashko <grygorii.strashko@ti.com> [160406 04:47]:
> Now wakeirq stops working for device if wakeup option for
> this device will be reconfigured through sysfs, like:
>
> echo disabled > /sys/devices/platform/extcon_usb1/power/wakeup
> echo enabled > /sys/devices/platform/extcon_usb1/power/wakeup
>
> Once above set of commands is executed the device's wakeup_source
> opject will be recreated and dev->power.wakeup->wakeirq field will
> contain NULL. As result, device_wakeup_arm_wake_irqs() will not arm
> wakeirq for the affected device.
>
> Hece, lets try to fix it in the following way:
> check for dev->wakeirq field when device_wakeup_attach() is called
> and if !NULL re-attach wakeirq to the device
Yeah I think that's all there is to it, thanks for fixing it:
Acked-by: Tony Lindgren <tony@atomide.com>
next prev parent reply other threads:[~2016-04-07 17:56 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-06 11:45 [RFC PATCH] PM / wakeirq: fix wakeirq setting after wakup re-configuration from sysfs Grygorii Strashko
2016-04-07 17:56 ` Tony Lindgren [this message]
2016-04-07 21:25 ` Rafael J. Wysocki
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