From: Pali Rohár <pali.rohar@gmail.com>
Date: Mon, 23 Apr 2018 23:25:58 +0000 (-0700)
Subject: Input: alps - fix reporting pressure of v3 trackstick
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=9c71b2c53bf56efa2f8aeab4247a86c0178fdcd7;p=openwrt%2Fstaging%2Fblogic.git

Input: alps - fix reporting pressure of v3 trackstick

According to documentation, all 7 lower bits represents trackpoint pressure.

Fixes: 4621c9660459 ("Input: alps - report pressure of v3 and v7 trackstick")
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---

diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 0a67f235ba88..38f9501acdf0 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -583,7 +583,7 @@ static void alps_process_trackstick_packet_v3(struct psmouse *psmouse)
 
 	x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f));
 	y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f));
-	z = packet[4] & 0x7c;
+	z = packet[4] & 0x7f;
 
 	/*
 	 * The x and y values tend to be quite large, and when used