Input: wacom - fix pressure in Cintiq 21UX2

Currently the pressure range in Cintiq 21UX2 is limited to half of the
supported. This patch fixes the problem.

Signed-off-by: Aristeu Rozanski <aris@redhat.com>
Acked-by: Ping Cheng <pingc@wacom.com>
CC: stable@kernel.org
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 6e29badb969e..47fd7a041c52 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -442,8 +442,10 @@ static void wacom_intuos_general(struct wacom_wac *wacom)
         /* general pen packet */
         if ((data[1] & 0xb8) == 0xa0) {
                 t = (data[6] << 2) | ((data[7] >> 6) & 3);
-                if (features->type >= INTUOS4S && features->type <= INTUOS4L)
+                if ((features->type >= INTUOS4S && features->type <= INTUOS4L) ||
+                    features->type == WACOM_21UX2) {
                         t = (t << 1) | (data[1] & 1);
+                }
                 input_report_abs(input, ABS_PRESSURE, t);
                 input_report_abs(input, ABS_TILT_X,
                                 ((data[7] << 1) & 0x7e) | (data[8] >> 7));