[PATCH] Input: ALPS - add support for 73 03 28 devices (Thinkpad L570)

[Dennis Wassenberg]

The Lenovo Thinkpad L570 uses V8 protocol.
Add 0x73 0x03 0x28 devices to use V8 protovol which makes
trackstick and mouse buttons work with Lenovo Thinkpad L570.

Signed-off-by: Dennis Wassenberg <dennis.wassenberg@xxxxxxxxxxx>
---
 drivers/input/mouse/alps.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index dbe57da..5523d4e 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -136,6 +136,8 @@
 	{ { 0x73, 0x02, 0x0a }, { ALPS_PROTO_V2, 0xf8, 0xf8, 0 } },
 	{ { 0x73, 0x02, 0x14 }, { ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 } },			/* Ahtec Laptop */
 	{ { 0x73, 0x02, 0x50 }, { ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS } },		/* Dell Vostro 1400 */
+	{ { 0x73, 0x03, 0x28 }, { ALPS_PROTO_V8, 0x18, 0x18,
+		ALPS_DUALPOINT | ALPS_DUALPOINT_WITH_PRESSURE | ALPS_BUTTONPAD } },		/* Lenovo L570 */
 };
 
 static const struct alps_protocol_info alps_v3_protocol_data = {
-- 
1.9.1