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-rw-r--r--drivers/hid/hid-multitouch.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index a20fc604ffd8..60e85f3861ee 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1150,8 +1150,30 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
}
#ifdef CONFIG_PM
+static void mt_release_contacts(struct hid_device *hid)
+{
+ struct hid_input *hidinput;
+
+ list_for_each_entry(hidinput, &hid->inputs, list) {
+ struct input_dev *input_dev = hidinput->input;
+ struct input_mt *mt = input_dev->mt;
+ int i;
+
+ if (mt) {
+ for (i = 0; i < mt->num_slots; i++) {
+ input_mt_slot(input_dev, i);
+ input_mt_report_slot_state(input_dev,
+ MT_TOOL_FINGER,
+ false);
+ }
+ input_sync(input_dev);
+ }
+ }
+}
+
static int mt_reset_resume(struct hid_device *hdev)
{
+ mt_release_contacts(hdev);
mt_set_maxcontacts(hdev);
mt_set_input_mode(hdev);
return 0;