xref: /linux/Documentation/devicetree/bindings/pinctrl/fsl,imx7d-pinctrl.yaml (revision 34dc1baba215b826e454b8d19e4f24adbeb7d00d) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pinctrl/fsl,imx7d-pinctrl.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale IMX7D IOMUX Controller
8
9maintainers:
10  - Dong Aisheng <aisheng.dong@nxp.com>
11
12description:
13  Please refer to fsl,imx-pinctrl.txt and pinctrl-bindings.txt in this directory
14  for common binding part and usage.
15
16properties:
17  compatible:
18    oneOf:
19      - enum:
20          - fsl,imx7d-iomuxc
21          - fsl,imx7d-iomuxc-lpsr
22
23  reg:
24    maxItems: 1
25
26  fsl,input-sel:
27    description:
28      phandle for main iomuxc controller which shares the input select
29      register for daisy chain settings.
30    $ref: /schemas/types.yaml#/definitions/phandle
31
32# Client device subnode's properties
33patternProperties:
34  'grp$':
35    type: object
36    description:
37      Pinctrl node's client devices use subnodes for desired pin configuration.
38      Client device subnodes use below standard properties.
39
40    properties:
41      fsl,pins:
42        description:
43          each entry consists of 6 integers and represents the mux and config
44          setting for one pin. The first 5 integers <mux_reg conf_reg input_reg
45          mux_val input_val> are specified using a PIN_FUNC_ID macro, which can
46          be found in <arch/arm/boot/dts/imx7d-pinfunc.h>. The last integer
47          CONFIG is the pad setting value like pull-up on this pin. Please
48          refer to i.MX7D Reference Manual for detailed CONFIG settings.
49        $ref: /schemas/types.yaml#/definitions/uint32-matrix
50        items:
51          items:
52            - description: |
53                "mux_reg" indicates the offset of mux register.
54            - description: |
55                "conf_reg" indicates the offset of pad configuration register.
56            - description: |
57                "input_reg" indicates the offset of select input register.
58            - description: |
59                "mux_val" indicates the mux value to be applied.
60            - description: |
61                "input_val" indicates the select input value to be applied.
62            - description: |
63                "pad_setting" indicates the pad configuration value to be applied.
64
65    required:
66      - fsl,pins
67
68    additionalProperties: false
69
70allOf:
71  - $ref: pinctrl.yaml#
72
73required:
74  - compatible
75  - reg
76
77if:
78  properties:
79    compatible:
80      contains:
81        enum:
82          - fsl,imx7d-iomuxc-lpsr
83
84then:
85  required:
86    - fsl,input-sel
87
88additionalProperties: false
89
90examples:
91  - |
92    iomuxc: pinctrl@30330000 {
93      compatible = "fsl,imx7d-iomuxc";
94      reg = <0x30330000 0x10000>;
95
96      pinctrl_uart5: uart5grp {
97        fsl,pins =
98          <0x0160 0x03D0 0x0714 0x1 0x0	0x7e>,
99          <0x0164 0x03D4 0x0000 0x1 0x0	0x76>;
100      };
101    };
102  - |
103    iomuxc_lpsr: pinctrl@302c0000 {
104      compatible = "fsl,imx7d-iomuxc-lpsr";
105      reg = <0x302c0000 0x10000>;
106      fsl,input-sel = <&iomuxc>;
107
108      pinctrl_gpio_lpsr: gpio1-grp {
109          fsl,pins =
110            <0x0008 0x0038 0x0000 0x0 0x0	0x59>,
111            <0x000C 0x003C 0x0000 0x0 0x0	0x59>;
112        };
113    };
114