From: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Date: Tue, 29 Mar 2016 20:10:41 +0000 (+0200)
Subject: HID: multitouch: Synchronize MT frame on reset_resume
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0a0f5b7e5b56829b91d3637cf6999e0ade791ddb;p=linux-beck.git

HID: multitouch: Synchronize MT frame on reset_resume

input_mt_get_slot_by_key() requires input_mt_sync_frame() to be called
at each frame. Do it when releasing the touches, or else we won't get
a proper slot number after mt_reset_resume().

Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Reviewed-by: Benson Leung <bleung@chromium.org>
Reviewed-by: Benjamin TIssoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---

diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 25d3c4330bf6..c741f5e50a66 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1169,6 +1169,7 @@ static void mt_release_contacts(struct hid_device *hid)
 							   MT_TOOL_FINGER,
 							   false);
 			}
+			input_mt_sync_frame(input_dev);
 			input_sync(input_dev);
 		}
 	}