xref: /linux/Documentation/devicetree/bindings/pinctrl/fsl,imxrt1170.yaml (revision ae22a94997b8a03dcb3c922857c203246711f9d4) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pinctrl/fsl,imxrt1170.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale i.MXRT1170 IOMUX Controller
8
9maintainers:
10  - Giulio Benetti <giulio.benetti@benettiengineering.com>
11  - Jesse Taube <Mr.Bossman075@gmail.com>
12
13description:
14  Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
15  for common binding part and usage.
16
17properties:
18  compatible:
19    const: fsl,imxrt1170-iomuxc
20
21  reg:
22    maxItems: 1
23
24# Client device subnode's properties
25patternProperties:
26  'grp$':
27    type: object
28    description:
29      Pinctrl node's client devices use subnodes for desired pin configuration.
30      Client device subnodes use below standard properties.
31
32    properties:
33      fsl,pins:
34        description:
35          each entry consists of 6 integers and represents the mux and config
36          setting for one pin. The first 5 integers <mux_reg conf_reg input_reg
37          mux_val input_val> are specified using a PIN_FUNC_ID macro, which can
38          be found in <arch/arm/boot/dts/imxrt1170-pinfunc.h>. The last
39          integer CONFIG is the pad setting value like pull-up on this pin. Please
40          refer to i.MXRT1170 Reference Manual for detailed CONFIG settings.
41        $ref: /schemas/types.yaml#/definitions/uint32-matrix
42        items:
43          items:
44            - description: |
45                "mux_reg" indicates the offset of mux register.
46            - description: |
47                "conf_reg" indicates the offset of pad configuration register.
48            - description: |
49                "input_reg" indicates the offset of select input register.
50            - description: |
51                "mux_val" indicates the mux value to be applied.
52            - description: |
53                "input_val" indicates the select input value to be applied.
54            - description: |
55                "pad_setting" indicates the pad configuration value to be applied.
56    required:
57      - fsl,pins
58
59    additionalProperties: false
60
61required:
62  - compatible
63  - reg
64
65additionalProperties: false
66
67examples:
68  - |
69    iomuxc: iomuxc@400e8000 {
70        compatible = "fsl,imxrt1170-iomuxc";
71        reg = <0x400e8000 0x4000>;
72        pinctrl_lpuart1: lpuart1grp {
73            fsl,pins =
74              <0x16C 0x3B0 0x620 0x0 0x0  0xf1>,
75              <0x170 0x3B4 0x61C 0x0 0x0	0xf1>;
76        };
77    };
78