xref: /freebsd/sys/contrib/device-tree/Bindings/pinctrl/intel,pinctrl-thunderbay.yaml (revision 8ddb146abcdf061be9f2c0db7e391697dafad85c) 
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/pinctrl/intel,pinctrl-thunderbay.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Intel Thunder Bay pin controller Device Tree Bindings
8
9maintainers:
10  - Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>
11
12description: |
13  Intel Thunder Bay SoC integrates a pin controller which enables control
14  of pin directions, input/output values and configuration
15  for a total of 67 pins.
16
17properties:
18  compatible:
19    const: intel,thunderbay-pinctrl
20
21  reg:
22    maxItems: 1
23
24  gpio-controller: true
25
26  '#gpio-cells':
27    const: 2
28
29  gpio-ranges:
30    maxItems: 1
31
32  interrupts:
33    description:
34      Specifies the interrupt lines to be used by the controller.
35    maxItems: 2
36
37  interrupt-controller: true
38
39  '#interrupt-cells':
40    const: 2
41
42patternProperties:
43  '^gpio@[0-9a-f]*$':
44    type: object
45
46    description:
47      Child nodes can be specified to contain pin configuration information,
48      which can then be utilized by pinctrl client devices.
49      The following properties are supported.
50
51    properties:
52      pins:
53        description: |
54          The name(s) of the pins to be configured in the child node.
55          Supported pin names are "GPIO0" up to "GPIO66".
56
57      bias-disable: true
58
59      bias-pull-down: true
60
61      bias-pull-up: true
62
63      drive-strength:
64        description: Drive strength for the pad.
65        enum: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15]
66
67      bias-bus-hold:
68        type: boolean
69
70      input-schmitt-enable:
71        type: boolean
72
73      slew-rate:
74        description: GPIO slew rate control.
75                      0 - Slow
76                      1 - Fast
77        enum: [0, 1]
78
79additionalProperties: false
80
81required:
82  - compatible
83  - reg
84  - gpio-controller
85  - '#gpio-cells'
86  - gpio-ranges
87  - interrupts
88  - interrupt-controller
89  - '#interrupt-cells'
90
91examples:
92  - |
93    #include <dt-bindings/interrupt-controller/arm-gic.h>
94    #include <dt-bindings/interrupt-controller/irq.h>
95    // Example 1
96    pinctrl0: gpio@0 {
97        compatible = "intel,thunderbay-pinctrl";
98        reg = <0x600b0000 0x88>;
99        gpio-controller;
100        #gpio-cells = <0x2>;
101        gpio-ranges = <&pinctrl0 0 0 67>;
102        interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>,
103                     <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
104        interrupt-controller;
105        #interrupt-cells = <2>;
106    };
107
108    // Example 2
109    pinctrl1: gpio@1 {
110        compatible = "intel,thunderbay-pinctrl";
111        reg = <0x600c0000 0x88>;
112        gpio-controller;
113        #gpio-cells = <0x2>;
114        gpio-ranges = <&pinctrl1 0 0 53>;
115        interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>,
116                     <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
117        interrupt-controller;
118        #interrupt-cells = <2>;
119    };
120