HID: hid-multitouch: Add LG Display Multitouch device.

This panel is also known as the Dell ST2220Tc.

Signed-off-by: jeffbrown@android.com
Reviewed-By: Benjamin Tissoires <Benjamin_Tissoires@logitech.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

4 files changed, 10 insertions, 0 deletions

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 306b15f39c9c..3cbe8cc51ef3 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -328,6 +328,7 @@ config HID_MULTITOUCH
           - Hanvon dual touch panels
           - Ilitek dual touch panels
           - IrTouch Infrared USB panels
+          - LG Display panels (Dell ST2220Tc)
           - Lumio CrystalTouch panels
           - MosArt dual-touch panels
           - PenMount dual touch panels
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 1a5cf0c9cfca..11b3b39401ee 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1396,6 +1396,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
+        { HID_USB_DEVICE(USB_VENDOR_ID_LG, USB_DEVICE_ID_LG_MULTITOUCH) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index db63ccf21cc8..637e6e96a0d7 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -419,6 +419,9 @@
 #define USB_DEVICE_ID_LD_HYBRID         0x2090
 #define USB_DEVICE_ID_LD_HEATCONTROL    0x20A0
 
+#define USB_VENDOR_ID_LG                0x1fd2
+#define USB_DEVICE_ID_LG_MULTITOUCH     0x0064
+
 #define USB_VENDOR_ID_LOGITECH          0x046d
 #define USB_DEVICE_ID_LOGITECH_RECEIVER 0xc101
 #define USB_DEVICE_ID_LOGITECH_HARMONY_FIRST  0xc110
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 4ee21ac8e856..b03a0b0e9b63 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -682,6 +682,11 @@ static const struct hid_device_id mt_devices[] = {
                 HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS,
                         USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
 
+        /* LG Display panels */
+        { .driver_data = MT_CLS_DEFAULT,
+                HID_USB_DEVICE(USB_VENDOR_ID_LG,
+                        USB_DEVICE_ID_LG_MULTITOUCH) },
+
         /* Lumio panels */
         { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE,
                 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO,