linux-kernel - [PATCH v2 3/4] dt-bindings: input: Add TouchNetix axiom touchscreen

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Message-Id: <20250529-v6-10-topic-touchscreen-axiom-v2-3-a5edb105a600@pengutronix.de>
Date: Thu, 29 May 2025 00:08:44 +0200
From: Marco Felsch <m.felsch@...gutronix.de>
To: Luis Chamberlain <mcgrof@...nel.org>, 
 Russ Weight <russ.weight@...ux.dev>, 
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
 "Rafael J. Wysocki" <rafael@...nel.org>, 
 Andrew Morton <akpm@...ux-foundation.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Dmitry Torokhov <dmitry.torokhov@...il.com>, 
 Kamel Bouhara <kamel.bouhara@...tlin.com>, 
 Marco Felsch <kernel@...gutronix.de>, Henrik Rydberg <rydberg@...math.org>, 
 Danilo Krummrich <dakr@...hat.com>
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-input@...r.kernel.org, Marco Felsch <m.felsch@...gutronix.de>
Subject: [PATCH v2 3/4] dt-bindings: input: Add TouchNetix axiom
 touchscreen

From: Kamel Bouhara <kamel.bouhara@...tlin.com>

Add the TouchNetix axiom I2C touchscreen device tree bindings
documentation.

Signed-off-by: Kamel Bouhara <kamel.bouhara@...tlin.com>
Signed-off-by: Marco Felsch <m.felsch@...gutronix.de>
---
 .../input/touchscreen/touchnetix,ax54a.yaml        | 64 ++++++++++++++++++++++
 1 file changed, 64 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/touchnetix,ax54a.yaml b/Documentation/devicetree/bindings/input/touchscreen/touchnetix,ax54a.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..b32bfb4dcecd5617a5fb7f1e2697138e1783c003
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/touchnetix,ax54a.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/input/touchscreen/touchnetix,ax54a.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: TouchNetix Axiom series touchscreen controller
+
+maintainers:
+  - Marco Felsch <kernel@...gutronix.de>
+
+allOf:
+  - $ref: /schemas/input/touchscreen/touchscreen.yaml#
+  - $ref: /schemas/input/input.yaml#
+
+properties:
+  compatible:
+    const: touchnetix,ax54a
+
+  reg:
+    enum: [ 0x66, 0x67 ]
+
+  interrupts:
+    maxItems: 1
+
+  reset-gpios:
+    maxItems: 1
+
+  panel: true
+
+  vdda-supply:
+    description: Analog power supply regulator on VDDA pin
+
+  vddi-supply:
+    description: I/O power supply regulator on VDDI pin
+
+required:
+  - compatible
+  - reg
+  - vdda-supply
+  - vddi-supply
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    i2c {
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      touchscreen@66 {
+        compatible = "touchnetix,ax54a";
+        reg = <0x66>;
+        interrupt-parent = <&gpio2>;
+        interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
+        reset-gpios = <&gpio1 1 GPIO_ACTIVE_HIGH>;
+        vdda-supply = <&vdda_reg>;
+        vddi-supply = <&vddi_reg>;
+        poll-interval = <20>;
+      };
+    };
+...

-- 
2.39.5