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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pinctrl/fsl,imx8ulp-pinctrl.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale IMX8ULP IOMUX Controller
+
+maintainers:
+ - Jacky Bai <ping.bai@nxp.com>
+
+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,imx8ulp-iomuxc1
+
+ 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 5 integers and represents the mux and config
+ setting for one pin. The first 4 integers <mux_config_reg input_reg
+ mux_mode input_val> are specified using a PIN_FUNC_ID macro, which can
+ be found in <arch/arm64/boot/dts/freescale/imx8ulp-pinfunc.h>. The last
+ integer CONFIG is the pad setting value like pull-up on this pin. Please
+ refer to i.MX8ULP Reference Manual for detailed CONFIG settings.
+ $ref: /schemas/types.yaml#/definitions/uint32-matrix
+ items:
+ items:
+ - description: |
+ "mux_config_reg" indicates the offset of mux register.
+ - description: |
+ "input_reg" indicates the offset of select input register.
+ - description: |
+ "mux_mode" 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
+
+required:
+ - compatible
+ - reg
+
+additionalProperties: false
+
+examples:
+ # Pinmux controller node
+ - |
+ iomuxc: pinctrl@298c0000 {
+ compatible = "fsl,imx8ulp-iomuxc1";
+ reg = <0x298c0000 0x10000>;
+
+ pinctrl_lpuart5: lpuart5grp {
+ fsl,pins =
+ <0x0138 0x08F0 0x4 0x3 0x3>,
+ <0x013C 0x08EC 0x4 0x3 0x3>;
+ };
+ };
+
+...