xref: /freebsd/sys/contrib/device-tree/Bindings/pinctrl/starfive,jh7110-aon-pinctrl.yaml (revision aa1a8ff2d6dbc51ef058f46f3db5a8bb77967145) 
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pinctrl/starfive,jh7110-aon-pinctrl.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: StarFive JH7110 AON Pin Controller
8
9description: |
10  Bindings for the JH7110 RISC-V SoC from StarFive Technology Ltd.
11
12  Out of the SoC's many pins only the ones named PAD_RGPIO0 to PAD_RGPIO3
13  can be multiplexed and have configurable bias, drive strength,
14  schmitt trigger etc.
15  Some peripherals such as PWM have their I/O go through the 4 "GPIOs".
16
17maintainers:
18  - Jianlong Huang <jianlong.huang@starfivetech.com>
19
20properties:
21  compatible:
22    const: starfive,jh7110-aon-pinctrl
23
24  reg:
25    maxItems: 1
26
27  resets:
28    maxItems: 1
29
30  interrupts:
31    maxItems: 1
32
33  interrupt-controller: true
34
35  '#interrupt-cells':
36    const: 2
37
38  gpio-controller: true
39
40  '#gpio-cells':
41    const: 2
42
43patternProperties:
44  '-[0-9]+$':
45    type: object
46    additionalProperties: false
47    patternProperties:
48      '-pins$':
49        type: object
50        description: |
51          A pinctrl node should contain at least one subnode representing the
52          pinctrl groups available on the machine. Each subnode will list the
53          pins it needs, and how they should be configured, with regard to
54          muxer configuration, bias, input enable/disable, input schmitt
55          trigger enable/disable, slew-rate and drive strength.
56        allOf:
57          - $ref: /schemas/pinctrl/pincfg-node.yaml
58          - $ref: /schemas/pinctrl/pinmux-node.yaml
59        additionalProperties: false
60
61        properties:
62          pinmux:
63            description: |
64              The list of GPIOs and their mux settings that properties in the
65              node apply to. This should be set using the GPIOMUX macro.
66
67          bias-disable: true
68
69          bias-pull-up:
70            type: boolean
71
72          bias-pull-down:
73            type: boolean
74
75          drive-strength:
76            enum: [ 2, 4, 8, 12 ]
77
78          input-enable: true
79
80          input-disable: true
81
82          input-schmitt-enable: true
83
84          input-schmitt-disable: true
85
86          slew-rate:
87            maximum: 1
88
89required:
90  - compatible
91  - reg
92  - interrupts
93  - interrupt-controller
94  - '#interrupt-cells'
95  - gpio-controller
96  - '#gpio-cells'
97
98additionalProperties: false
99
100examples:
101  - |
102    pinctrl@17020000 {
103        compatible = "starfive,jh7110-aon-pinctrl";
104        reg = <0x17020000 0x10000>;
105        resets = <&aoncrg 2>;
106        interrupts = <85>;
107        interrupt-controller;
108        #interrupt-cells = <2>;
109        gpio-controller;
110        #gpio-cells = <2>;
111
112        pwm-0 {
113            pwm-pins {
114                pinmux = <0xff030802>;
115                bias-disable;
116                drive-strength = <12>;
117                input-disable;
118                input-schmitt-disable;
119                slew-rate = <0>;
120            };
121        };
122    };
123
124...
125