[PATCH v7 3/4] dt-bindings: input: touchscreen: st1232: add touch-overlay example

Javier Carrasco
2024-01-19T07:43:49Z

The touch-overaly 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@kernel.org>
Signed-off-by: Javier Carrasco <javier.carrasco@wolfvision.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>;
+ };
+ };
};
};

--
2.39.2