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HID: hyperv: register as a wakeup source

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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>
This commit is contained in:
Dexuan Cui 2014-08-01 07:26:41 -07:00 committed by Jiri Kosina
parent 4c2f503aad
commit f1210455e7
1 changed files with 6 additions and 0 deletions
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6
drivers/hid/hid-hyperv.c
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@ -308,6 +308,9 @@ static void mousevsc_on_receive(struct hv_device *device,
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 @@ static int mousevsc_probe(struct hv_device *device,
goto probe_err2;
}
device_init_wakeup(&device->device, true);
input_dev->connected = true;
input_dev->init_complete = true;
@ -571,6 +576,7 @@ static int mousevsc_remove(struct hv_device *dev)
{
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);