queue-4.19/input-synaptics-enable-smbus-on-thinkpad-e480-and-e580.patch

   1 From 9843f3e08e2144724be7148e08d77a195dea257a Mon Sep 17 00:00:00 2001
   2 From: Alexander Mikhaylenko <exalm7659@gmail.com>
   3 Date: Wed, 12 Jun 2019 14:59:46 -0700
   4 Subject: Input: synaptics - enable SMBus on ThinkPad E480 and E580
   5
   6 From: Alexander Mikhaylenko <exalm7659@gmail.com>
   7
   8 commit 9843f3e08e2144724be7148e08d77a195dea257a upstream.
   9
  10 They are capable of using intertouch and it works well with
  11 psmouse.synaptics_intertouch=1, so add them to the list.
  12
  13 Without it, scrolling and gestures are jumpy, three-finger pinch gesture
  14 doesn't work and three- or four-finger swipes sometimes get stuck.
  15
  16 Signed-off-by: Alexander Mikhaylenko <exalm7659@gmail.com>
  17 Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
  18 Cc: stable@vger.kernel.org
  19 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
  20 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  21
  22 ---
  23  drivers/input/mouse/synaptics.c |    2 ++
  24  1 file changed, 2 insertions(+)
  25
  26 --- a/drivers/input/mouse/synaptics.c
  27 +++ b/drivers/input/mouse/synaptics.c
  28 @@ -179,6 +179,8 @@ static const char * const smbus_pnp_ids[
  29         "LEN0096", /* X280 */
  30         "LEN0097", /* X280 -> ALPS trackpoint */
  31         "LEN200f", /* T450s */
  32 +       "LEN2054", /* E480 */
  33 +       "LEN2055", /* E580 */
  34         "SYN3052", /* HP EliteBook 840 G4 */
  35         "SYN3221", /* HP 15-ay000 */
  36         NULL