[PATCH v2 2/8] dt-bindings: input: touchscreen: document synaptics TCM oncell
From: Caleb Connolly <hidden>
Date: 2024-06-30 18:36:44
Also in:
dri-devel, linux-arm-msm, linux-input
Subsystem:
input (keyboard, mouse, joystick, touchscreen) drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Dmitry Torokhov, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Document the Synaptics TCM oncell series of touchscreens, starting with the s3908. Signed-off-by: Caleb Connolly <redacted> --- .../input/touchscreen/syna,tcm-oncell.yaml | 68 ++++++++++++++++++++++ 1 file changed, 68 insertions(+)
diff --git a/Documentation/devicetree/bindings/input/touchscreen/syna,tcm-oncell.yaml b/Documentation/devicetree/bindings/input/touchscreen/syna,tcm-oncell.yaml
new file mode 100644
index 000000000000..6e366c9446f8
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/touchscreen/syna,tcm-oncell.yaml@@ -0,0 +1,68 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/touchscreen/syna,tcm-oncell.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Synaptics TCM Oncell i2c touchscreen + +maintainers: + - Caleb Connolly <caleb@postmarketos.org> + +allOf: + - $ref: touchscreen.yaml# + +properties: + compatible: + enum: + - syna,s3908 + + reg: + maxItems: 1 + + interrupts-extended: + maxItems: 1 + + reset-gpios: + maxItems: 1 + description: Reset GPIO the chip is connected to. + + vdd-supply: + description: a phandle for the regulator supplying 3V power. + + vcc-supply: + description: a phandle for the regulator supplying IO power. + +additionalProperties: false + +required: + - compatible + - reg + - interrupts-extended + - reset-gpios + - vdd-supply + - vcc-supply + +examples: + - | + #include <dt-bindings/interrupt-controller/irq.h> + #include <dt-bindings/gpio/gpio.h> + + i2c { + #address-cells = <1>; + #size-cells = <0>; + clock-frequency = <400000>; + status = "okay"; + + touchscreen@4b { + compatible = "syna,s3908"; + reg = <0x4B>; + + interrupts-extended = <&tlmm 39 0x2008>; + + reset-gpios = <&tlmm 38 GPIO_ACTIVE_LOW>; + + vdd-supply = <&vreg_l13a_ts_3p0>; + vcc-supply = <&vreg_l1c_1p8>; + }; + };
--
2.45.0