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authorDexuan Cui <decui@microsoft.com>2014-08-01 07:26:41 -0700
committerJiri Kosina <jkosina@suse.cz>2014-08-04 11:20:20 +0200
commitf1210455e78a610c7b316389b31c162c371d888c (patch)
tree16965b609a3e19cc618c7ca36c1fa087a4aa3d46 /drivers/hid
parent4c2f503aade27ebf12f5733a583d711f99dc5ec1 (diff)
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>
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/hid-hyperv.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/hid/hid-hyperv.c b/drivers/hid/hid-hyperv.c
index f52dbcb7133b..31fad641b744 100644
--- a/drivers/hid/hid-hyperv.c
+++ b/drivers/hid/hid-hyperv.c
@@ -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);