# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) %YAML 1.2 --- $id: http://devicetree.org/schemas/gpio/ti,omap-gpio.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: OMAP GPIO controller bindings maintainers: - Grygorii Strashko description: | The general-purpose interface combines general-purpose input/output (GPIO) banks. Each GPIO banks provides up to 32 dedicated general-purpose pins with input and output capabilities; interrupt generation in active mode and wake-up request generation in idle mode upon the detection of external events. properties: compatible: oneOf: - enum: - ti,omap2-gpio - ti,omap3-gpio - ti,omap4-gpio - items: - const: ti,am4372-gpio - const: ti,omap4-gpio reg: maxItems: 1 gpio-controller: true '#gpio-cells': const: 2 interrupt-controller: true '#interrupt-cells': const: 2 interrupts: maxItems: 1 gpio-ranges: true gpio-line-names: minItems: 1 maxItems: 32 ti,gpio-always-on: $ref: /schemas/types.yaml#/definitions/flag description: Indicates if a GPIO bank is always powered and will never lose its logic state. ti,hwmods: $ref: /schemas/types.yaml#/definitions/string deprecated: true description: Name of the hwmod associated with the GPIO. Needed on some legacy OMAP SoCs which have not been converted to the ti,sysc interconnect hierarachy. ti,no-reset-on-init: $ref: /schemas/types.yaml#/definitions/flag deprecated: true description: Do not reset on init. Used with ti,hwmods on some legacy OMAP SoCs which have not been converted to the ti,sysc interconnect hierarachy. patternProperties: "^(.+-hog(-[0-9]+)?)$": type: object required: - gpio-hog required: - compatible - reg - gpio-controller - "#gpio-cells" - interrupt-controller - "#interrupt-cells" - interrupts additionalProperties: false examples: - | #include gpio0: gpio@0 { compatible = "ti,omap4-gpio"; reg = <0x0 0x1000>; gpio-controller; #gpio-cells = <2>; interrupt-controller; #interrupt-cells = <2>; interrupts = <96>; ti,gpio-always-on; ls-buf-en-hog { gpio-hog; gpios = <10 GPIO_ACTIVE_HIGH>; output-high; line-name = "LS_BUF_EN"; }; };