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authorBen Gamari <ben@smart-cactus.org>2016-10-04 21:43:30 +0300
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2016-10-04 21:47:01 +0300
commitaeaa881f9b17823028b464893b89c42db797b717 (patch)
tree9e94e29f19c77fcdc75cf56b7039771ae0148540 /drivers/input/mouse
parent7ad8a1067dfc3bf74ad2daef013ea4f3df1841a7 (diff)
downloadlinux-aeaa881f9b17823028b464893b89c42db797b717.tar.xz
Input: ALPS - set DualPoint flag for 74 03 28 devices
Here we introduce logic in alps_identify to set the ALPS_DUALPOINT flag for touchpad hardware responding to E7 report with 73 03 28, as is found in the Dell Latitude E7470. Tested-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Ben Gamari <ben@smart-cactus.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'drivers/input/mouse')
-rw-r--r--drivers/input/mouse/alps.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index bb0b7230cf3b..6d7de9bfed9a 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -2747,6 +2747,10 @@ static int alps_set_protocol(struct psmouse *psmouse,
if (alps_set_defaults_ss4_v2(psmouse, priv))
return -EIO;
+ if (priv->fw_ver[1] == 0x1)
+ priv->flags |= ALPS_DUALPOINT |
+ ALPS_DUALPOINT_WITH_PRESSURE;
+
break;
}
@@ -2819,6 +2823,9 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
} else if (e7[0] == 0x73 && e7[1] == 0x03 &&
e7[2] == 0x14 && ec[1] == 0x02) {
protocol = &alps_v8_protocol_data;
+ } else if (e7[0] == 0x73 && e7[1] == 0x03 &&
+ e7[2] == 0x28 && ec[1] == 0x01) {
+ protocol = &alps_v8_protocol_data;
} else {
psmouse_dbg(psmouse,
"Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7, ec);