1# SPDX-License-Identifier: (GPL-2.0-or-later OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/input/ariel-pwrbutton.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Dell Wyse 3020 a.k.a. "Ariel" Power Button 8 9maintainers: 10 - Lubomir Rintel <lkundrak@v3.sk> 11 12description: | 13 The ENE Embedded Controller on the Ariel board has an interface to the 14 SPI bus that is capable of sending keyboard and mouse data. A single 15 power button is attached to it. This binding describes this 16 configuration. 17 18allOf: 19 - $ref: input.yaml# 20 - $ref: /schemas/spi/spi-peripheral-props.yaml# 21 22properties: 23 compatible: 24 items: 25 - const: dell,wyse-ariel-ec-input 26 - const: ene,kb3930-input 27 28 reg: 29 maxItems: 1 30 31 interrupts: 32 maxItems: 1 33 34 spi-max-frequency: true 35 36required: 37 - compatible 38 - reg 39 - interrupts 40 41additionalProperties: false 42 43examples: 44 - | 45 #include <dt-bindings/interrupt-controller/irq.h> 46 47 spi { 48 #address-cells = <1>; 49 #size-cells = <0>; 50 51 power-button@0 { 52 compatible = "dell,wyse-ariel-ec-input", "ene,kb3930-input"; 53 reg = <0>; 54 interrupt-parent = <&gpio>; 55 interrupts = <60 IRQ_TYPE_EDGE_RISING>; 56 spi-max-frequency = <33000000>; 57 }; 58 }; 59