Input: alps - cache firmware version

Signed-off-by: NHans de Goede <hdegoede@redhat.com>
Signed-off-by: NDmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/mouse/alps.c

@@ -1901,6 +1901,9 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
 	    alps_exit_command_mode(psmouse))
 		return -EIO;
 
+	/* Save the Firmware version */
+	memcpy(priv->fw_ver, ec, 3);
+
 	if (alps_match_table(psmouse, priv, e7, ec) == 0) {
 		return 0;
 	} else if (e7[0] == 0x73 && e7[1] == 0x03 && e7[2] == 0x50 &&

drivers/input/mouse/alps.h

@@ -124,6 +124,7 @@ struct alps_fields {
  *   known format for this model.  The first byte of the report, ANDed with
  *   mask0, should match byte0.
  * @mask0: The mask used to check the first byte of the report.
+ * @fw_ver: cached copy of firmware version (EC report)
  * @flags: Additional device capabilities (passthrough port, trackstick, etc.).
  * @x_max: Largest possible X position value.
  * @y_max: Largest possible Y position value.
@@ -149,6 +150,7 @@ struct alps_data {
 	int addr_command;
 	unsigned char proto_version;
 	unsigned char byte0, mask0;
+	unsigned char fw_ver[3];
 	int flags;
 	int x_max;
 	int y_max;