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 21properties: 22 compatible: 23 items: 24 - const: dell,wyse-ariel-ec-input 25 - const: ene,kb3930-input 26 27 reg: 28 maxItems: 1 29 30 interrupts: 31 maxItems: 1 32 33 spi-max-frequency: true 34 35required: 36 - compatible 37 - reg 38 - interrupts 39 40additionalProperties: false 41 42examples: 43 - | 44 #include <dt-bindings/interrupt-controller/irq.h> 45 46 spi { 47 #address-cells = <1>; 48 #size-cells = <0>; 49 50 power-button@0 { 51 compatible = "dell,wyse-ariel-ec-input", "ene,kb3930-input"; 52 reg = <0>; 53 interrupt-parent = <&gpio>; 54 interrupts = <60 IRQ_TYPE_EDGE_RISING>; 55 spi-max-frequency = <33000000>; 56 }; 57 }; 58