diff options
| author | Strashko, Grygorii <grygorii.strashko@ti.com> | 2016-04-06 14:45:53 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-04-07 23:23:47 +0300 |
| commit | 16669befb0772eac6a76057b7010ba5b419c0e78 (patch) | |
| tree | 7d9f0c18fa51fde7d475ea6594aa9f86965ef122 /drivers/base/power | |
| parent | 8fd2910e31155d8562180cc8580bc27e3be4f4bf (diff) | |
| download | linux-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/power')
| -rw-r--r-- | drivers/base/power/wakeup.c | 2 |
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; } |