Input: wacom - add LED support for Cintiq 24HD

The Cintiq 24HD has three LEDs on the left side of the tablet and
three LEDs on the right side of the tablet. Switching to LED 0,
1, or 2 will enable the top, middle, or bottom LED for the respective
side. Switching to LED 3 turns off the LEDs on the respective side.

Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Reviewed-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 2fe21d1a18b..7e63183a6c6 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -563,7 +563,8 @@ static int wacom_led_control(struct wacom *wacom)
         if (!buf)
                 return -ENOMEM;
 
-        if (wacom->wacom_wac.features.type == WACOM_21UX2)
+        if (wacom->wacom_wac.features.type == WACOM_21UX2 ||
+            wacom->wacom_wac.features.type == WACOM_24HD)
                 led = (wacom->led.select[1] << 4) | 0x40;
 
         led |=  wacom->led.select[0] | 0x4;
@@ -782,6 +783,7 @@ static int wacom_initialize_leds(struct wacom *wacom)
                                            &intuos4_led_attr_group);
                 break;
 
+        case WACOM_24HD:
         case WACOM_21UX2:
                 wacom->led.select[0] = 0;
                 wacom->led.select[1] = 0;
@@ -816,6 +818,7 @@ static void wacom_destroy_leds(struct wacom *wacom)
                                    &intuos4_led_attr_group);
                 break;
 
+        case WACOM_24HD:
         case WACOM_21UX2:
                 sysfs_remove_group(&wacom->intf->dev.kobj,
                                    &cintiq_led_attr_group);