HID: hyperv: register as a wakeup source
With this patch, we can move the mouse to wake up the VM after the VM executes
"echo freeze > /sys/power/state".
This addresses part of https://bugzilla.redhat.com/show_bug.cgi?id=1086100
Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-hyperv.c b/drivers/hid/hid-hyperv.c
index f52dbcb..31fad64 100644
--- a/drivers/hid/hid-hyperv.c
+++ b/drivers/hid/hid-hyperv.c
@@ -308,6 +308,9 @@
memcpy(input_dev->input_buf, input_report->buffer, len);
hid_input_report(input_dev->hid_device, HID_INPUT_REPORT,
input_dev->input_buf, len, 1);
+
+ pm_wakeup_event(&input_dev->device->device, 0);
+
break;
default:
pr_err("unsupported hid msg type - type %d len %d",
@@ -549,6 +552,8 @@
goto probe_err2;
}
+ device_init_wakeup(&device->device, true);
+
input_dev->connected = true;
input_dev->init_complete = true;
@@ -571,6 +576,7 @@
{
struct mousevsc_dev *input_dev = hv_get_drvdata(dev);
+ device_init_wakeup(&dev->device, false);
vmbus_close(dev->channel);
hid_hw_stop(input_dev->hid_device);
hid_destroy_device(input_dev->hid_device);