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 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: StarFive JH7110 AON Pin Controller
8
9 description: |
10 Bindings for the JH7110 RISC-V SoC from StarFive Technology Ltd.
11
12 Out of the SoC's many pins only the ones named PAD_RGPIO0 to PAD_RGPIO3
13 can be multiplexed and have configurable bias, drive strength,
14 schmitt trigger etc.
15 Some peripherals such as PWM have their I/O go through the 4 "GPIOs".
16
17 maintainers:
18 - Jianlong Huang <jianlong.huang@starfivetech.com>
19
20 properties:
21 compatible:
22 const: starfive,jh7110-aon-pinctrl
23
24 reg:
25 maxItems: 1
26
27 resets:
28 maxItems: 1
29
30 interrupts:
31 maxItems: 1
32
33 interrupt-controller: true
34
35 '#interrupt-cells':
36 const: 2
37
38 gpio-controller: true
39
40 '#gpio-cells':
41 const: 2
42
43 patternProperties:
44 '-[0-9]+$':
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
89 required:
90 - compatible
91 - reg
92 - interrupts
93 - interrupt-controller
94 - '#interrupt-cells'
95 - gpio-controller
96 - '#gpio-cells'
97
98 additionalProperties: false
99
100 examples:
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 ...
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