# SPDX-License-Identifier: GPL-2.0 %YAML 1.2 --- $id: http://devicetree.org/schemas/pinctrl/fsl,imx8mm-pinctrl.yaml# $schema: http://devicetree.org/meta-schemas/core.yaml# title: Freescale IMX8MM IOMUX Controller maintainers: - Anson Huang description: Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory for common binding part and usage. properties: compatible: const: fsl,imx8mm-iomuxc reg: maxItems: 1 # Client device subnode's properties patternProperties: 'grp$': type: object description: Pinctrl node's client devices use subnodes for desired pin configuration. Client device subnodes use below standard properties. properties: fsl,pins: description: each entry consists of 6 integers and represents the mux and config setting for one pin. The first 5 integers are specified using a PIN_FUNC_ID macro, which can be found in . The last integer CONFIG is the pad setting value like pull-up on this pin. Please refer to i.MX8M Mini Reference Manual for detailed CONFIG settings. $ref: /schemas/types.yaml#/definitions/uint32-matrix items: items: - description: | "mux_reg" indicates the offset of mux register. - description: | "conf_reg" indicates the offset of pad configuration register. - description: | "input_reg" indicates the offset of select input register. - description: | "mux_val" indicates the mux value to be applied. - description: | "input_val" indicates the select input value to be applied. - description: | "pad_setting" indicates the pad configuration value to be applied. required: - fsl,pins additionalProperties: false allOf: - $ref: "pinctrl.yaml#" required: - compatible - reg additionalProperties: false examples: # Pinmux controller node - | iomuxc: pinctrl@30330000 { compatible = "fsl,imx8mm-iomuxc"; reg = <0x30330000 0x10000>; pinctrl_uart2: uart2grp { fsl,pins = <0x23C 0x4A4 0x4FC 0x0 0x0 0x140>, <0x240 0x4A8 0x000 0x0 0x0 0x140>; }; }; ...