1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/input/touchscreen/melfas,mms114.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Melfas MMS114 family touchscreen controller bindings 8 9maintainers: 10 - Linus Walleij <linus.walleij@linaro.org> 11 12allOf: 13 - $ref: touchscreen.yaml# 14 15properties: 16 $nodename: 17 pattern: "^touchscreen(@.*)?$" 18 19 compatible: 20 items: 21 - enum: 22 - melfas,mms114 23 - melfas,mms134s 24 - melfas,mms136 25 - melfas,mms152 26 - melfas,mms345l 27 28 reg: 29 description: I2C address 30 31 clock-frequency: 32 description: I2C client clock frequency, defined for host 33 minimum: 100000 34 maximum: 400000 35 36 interrupts: 37 maxItems: 1 38 39 avdd-supply: 40 description: Analog power supply regulator on AVDD pin 41 42 vdd-supply: 43 description: Digital power supply regulator on VDD pin 44 45 touchscreen-size-x: true 46 touchscreen-size-y: true 47 touchscreen-fuzz-x: true 48 touchscreen-fuzz-y: true 49 touchscreen-fuzz-pressure: true 50 touchscreen-inverted-x: true 51 touchscreen-inverted-y: true 52 touchscreen-swapped-x-y: true 53 touchscreen-max-pressure: true 54 55additionalProperties: false 56 57required: 58 - compatible 59 - reg 60 - interrupts 61 - touchscreen-size-x 62 - touchscreen-size-y 63 64examples: 65 - | 66 #include <dt-bindings/interrupt-controller/irq.h> 67 i2c { 68 #address-cells = <1>; 69 #size-cells = <0>; 70 touchscreen@48 { 71 compatible = "melfas,mms114"; 72 reg = <0x48>; 73 interrupt-parent = <&gpio>; 74 interrupts = <39 IRQ_TYPE_EDGE_FALLING>; 75 avdd-supply = <&ldo1_reg>; 76 vdd-supply = <&ldo2_reg>; 77 touchscreen-size-x = <720>; 78 touchscreen-size-y = <1280>; 79 touchscreen-fuzz-x = <10>; 80 touchscreen-fuzz-y = <10>; 81 touchscreen-fuzz-pressure = <10>; 82 touchscreen-inverted-x; 83 touchscreen-inverted-y; 84 }; 85 }; 86 87... 88