linux-kernel - [PATCH v11 3/4] dt-bindings: input: touchscreen: st1232: add touch-overlay example

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Message-Id: <20241016-feature-ts_virtobj_patch-v11-3-b292a1bbb0a1@wolfvision.net>
Date: Wed, 16 Oct 2024 06:02:42 +0200
From: Javier Carrasco <javier.carrasco@...fvision.net>
To: Dmitry Torokhov <dmitry.torokhov@...il.com>, 
 Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, Bastian Hecht <hechtb@...il.com>, 
 Michael Riesch <michael.riesch@...fvision.net>
Cc: linux-input@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Javier Carrasco <javier.carrasco@...fvision.net>
Subject: [PATCH v11 3/4] dt-bindings: input: touchscreen: st1232: add
 touch-overlay example

The touch-overlay feature adds support for segments (touch areas) on the
touchscreen surface that represent overlays with clipped touchscreen
areas and printed buttons.

Add nodes for a clipped touchscreen and overlay buttons to the existing
example.

Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Javier Carrasco <javier.carrasco@...fvision.net>
---
 .../input/touchscreen/sitronix,st1232.yaml         | 29 ++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/sitronix,st1232.yaml b/Documentation/devicetree/bindings/input/touchscreen/sitronix,st1232.yaml
index 1d8ca19fd37a..e7ee7a0d74c4 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/sitronix,st1232.yaml
+++ b/Documentation/devicetree/bindings/input/touchscreen/sitronix,st1232.yaml
@@ -37,6 +37,7 @@ unevaluatedProperties: false
 
 examples:
   - |
+    #include <dt-bindings/input/linux-event-codes.h>
     i2c {
             #address-cells = <1>;
             #size-cells = <0>;
@@ -46,5 +47,33 @@ examples:
                     reg = <0x55>;
                     interrupts = <2 0>;
                     gpios = <&gpio1 166 0>;
+
+                    touch-overlay {
+                            segment-0 {
+                                    label = "Touchscreen";
+                                    x-origin = <0>;
+                                    x-size = <240>;
+                                    y-origin = <40>;
+                                    y-size = <280>;
+                            };
+
+                            segment-1a {
+                                    label = "Camera light";
+                                    linux,code = <KEY_LIGHTS_TOGGLE>;
+                                    x-origin = <40>;
+                                    x-size = <40>;
+                                    y-origin = <0>;
+                                    y-size = <40>;
+                            };
+
+                            segment-2a {
+                                    label = "Power";
+                                    linux,code = <KEY_POWER>;
+                                    x-origin = <160>;
+                                    x-size = <40>;
+                                    y-origin = <0>;
+                                    y-size = <40>;
+                            };
+                    };
             };
     };

-- 
2.43.0