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authorStrashko, Grygorii <grygorii.strashko@ti.com>2016-04-06 14:45:53 +0300
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2016-04-07 23:23:47 +0300
commit16669befb0772eac6a76057b7010ba5b419c0e78 (patch)
tree7d9f0c18fa51fde7d475ea6594aa9f86965ef122 /drivers/base
parent8fd2910e31155d8562180cc8580bc27e3be4f4bf (diff)
downloadlinux-16669befb0772eac6a76057b7010ba5b419c0e78.tar.xz
PM / wakeirq: fix wakeirq setting after wakup re-configuration from sysfs
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 Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/power/wakeup.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index a1e0b9ab847a..5fb7718f256c 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -246,6 +246,8 @@ static int device_wakeup_attach(struct device *dev, struct wakeup_source *ws)
return -EEXIST;
}
dev->power.wakeup = ws;
+ if (dev->power.wakeirq)
+ device_wakeup_attach_irq(dev, dev->power.wakeirq);
spin_unlock_irq(&dev->power.lock);
return 0;
}