From 2190d2514a8ed4f3d345554da39afdfc709516d5 Mon Sep 17 00:00:00 2001
From: Tai-hwa Liang <avatar@sentelic.com>
Date: Wed, 19 Sep 2012 11:10:47 -0700
Subject: [PATCH] --- yaml --- r: 323029 b: refs/heads/master c:
 30ebb7fa0e3e92145b859ad6e44aa6dc636b4103 h: refs/heads/master i:   323027:
 e38a317cbeb63f00c6b7acad8c4f595c350128c6 v: v3

---
 [refs]                               |  2 +-
 trunk/drivers/input/mouse/sentelic.c | 11 +++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index d76377f2b482..e46c382fe2a9 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 59d1f5c41a21f0d87973f2dedd40efd927a201d6
+refs/heads/master: 30ebb7fa0e3e92145b859ad6e44aa6dc636b4103
diff --git a/trunk/drivers/input/mouse/sentelic.c b/trunk/drivers/input/mouse/sentelic.c
index 3f5649f19082..a261d8576919 100644
--- a/trunk/drivers/input/mouse/sentelic.c
+++ b/trunk/drivers/input/mouse/sentelic.c
@@ -721,6 +721,17 @@ static psmouse_ret_t fsp_process_byte(struct psmouse *psmouse)
 
 	switch (psmouse->packet[0] >> FSP_PKT_TYPE_SHIFT) {
 	case FSP_PKT_TYPE_ABS:
+
+		if ((packet[0] == 0x48 || packet[0] == 0x49) &&
+		    packet[1] == 0 && packet[2] == 0) {
+			/*
+			 * Ignore coordinate noise when finger leaving the
+			 * surface, otherwise cursor may jump to upper-left
+			 * corner.
+			 */
+			packet[3] &= 0xf0;
+		}
+
 		abs_x = GET_ABS_X(packet);
 		abs_y = GET_ABS_Y(packet);