From 185cd1d8cb7f0fd30d868fa12d294bba5997b7c7 Mon Sep 17 00:00:00 2001
From: Hendrik Noack <hendrik-noack@gmx.de>
Date: Thu, 28 May 2026 22:05:25 -0700
Subject: [PATCH] dt-bindings: Input: Add Wacom W9000-series penabled
 touchscreens

Add bindings for Wacom W9002 and two Wacom W9007 variants which can be
found in tablets.

W9002, W9007A LT03, and W9007A V1 differ in the length of the return
message containing coordinates, distance, pressure and button status.

Co-developed-by: Ferass El Hafidi <funderscore@postmarketos.org>
Signed-off-by: Ferass El Hafidi <funderscore@postmarketos.org>
Signed-off-by: Hendrik Noack <hendrik-noack@gmx.de>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20260528074818.12151-2-hendrik-noack@gmx.de
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../input/touchscreen/wacom,w9007a-lt03.yaml  | 73 +++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/touchscreen/wacom,w9007a-lt03.yaml

diff --git a/Documentation/devicetree/bindings/input/touchscreen/wacom,w9007a-lt03.yaml b/Documentation/devicetree/bindings/input/touchscreen/wacom,w9007a-lt03.yaml
new file mode 100644
index 000000000000..6d1da6a435d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/wacom,w9007a-lt03.yaml
@@ -0,0 +1,73 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/wacom,w9007a-lt03.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Wacom W9000-series penabled I2C touchscreen
+
+maintainers:
+  - Hendrik Noack <hendrik-noack@gmx.de>
+
+description: |
+  The W9000-series are penabled touchscreen controllers by Wacom.
+
+  The firmware of controllers in different devices may differ. This can also
+  affect the controller's behavior.
+
+allOf:
+  - $ref: touchscreen.yaml#
+
+properties:
+  compatible:
+    enum:
+      - wacom,w9002
+      - wacom,w9007a-lt03
+      - wacom,w9007a-v1
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  vdd-supply: true
+
+  flash-mode-gpios:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    i2c {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        digitizer@56 {
+            compatible = "wacom,w9007a-lt03";
+            reg = <0x56>;
+            interrupt-parent = <&gpd1>;
+            interrupts = <1 IRQ_TYPE_EDGE_RISING>;
+
+            vdd-supply = <&stylus_reg>;
+
+            flash-mode-gpios = <&gpd1 3 GPIO_ACTIVE_HIGH>;
+            reset-gpios = <&gpx0 1 GPIO_ACTIVE_LOW>;
+
+            touchscreen-x-mm = <216>;
+            touchscreen-y-mm = <135>;
+            touchscreen-inverted-x;
+        };
+    };