# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML 1.2 --- $id: http://devicetree.org/schemas/pinctrl/cypress,cy8c95x0.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: Cypress CY8C95X0 I2C GPIO expander maintainers: - Patrick Rudolph description: | This supports the 20/40/60 pin Cypress CYC95x0 GPIO I2C expanders. Pin function configuration is performed on a per-pin basis. properties: compatible: enum: - cypress,cy8c9520 - cypress,cy8c9540 - cypress,cy8c9560 reg: maxItems: 1 gpio-controller: true '#gpio-cells': description: The first cell is the GPIO number and the second cell specifies GPIO flags, as defined in . const: 2 interrupts: maxItems: 1 interrupt-controller: true '#interrupt-cells': const: 2 gpio-line-names: true gpio-ranges: maxItems: 1 gpio-reserved-ranges: maxItems: 1 vdd-supply: description: Optional power supply. reset-gpios: description: GPIO connected to the XRES pin maxItems: 1 patternProperties: '-pins$': type: object description: Pinctrl node's client devices use subnodes for desired pin configuration. Client device subnodes use below standard properties. $ref: pincfg-node.yaml# properties: pins: description: List of gpio pins affected by the properties specified in this subnode. items: pattern: '^gp([0-7][0-7])$' minItems: 1 maxItems: 60 function: description: Specify the alternative function to be configured for the specified pins. enum: [ gpio, pwm ] bias-pull-down: true bias-pull-up: true bias-disable: true output-high: true output-low: true drive-push-pull: true drive-open-drain: true drive-open-source: true required: - pins - function additionalProperties: false required: - compatible - reg - interrupts - interrupt-controller - '#interrupt-cells' - gpio-controller - '#gpio-cells' additionalProperties: false allOf: - $ref: pinctrl.yaml# examples: - | #include #include i2c { #address-cells = <1>; #size-cells = <0>; pinctrl@20 { compatible = "cypress,cy8c9520"; reg = <0x20>; gpio-controller; #gpio-cells = <2>; #interrupt-cells = <2>; interrupts = ; interrupt-controller; vdd-supply = <&p3v3>; gpio-reserved-ranges = <5 1>; }; };