1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/gpio/ti,omap-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: OMAP GPIO controller
8
9 maintainers:
10 - Grygorii Strashko <grygorii.strashko@ti.com>
11
12 description: |
13 The general-purpose interface combines general-purpose input/output (GPIO) banks.
14 Each GPIO banks provides up to 32 dedicated general-purpose pins with input
15 and output capabilities; interrupt generation in active mode and wake-up
16 request generation in idle mode upon the detection of external events.
17
18 properties:
19 compatible:
20 oneOf:
21 - enum:
22 - ti,omap2-gpio
23 - ti,omap3-gpio
24 - ti,omap4-gpio
25 - items:
26 - const: ti,am4372-gpio
27 - const: ti,omap4-gpio
28
29 reg:
30 maxItems: 1
31
32 gpio-controller: true
33
34 '#gpio-cells':
35 const: 2
36
37 interrupt-controller: true
38
39 '#interrupt-cells':
40 const: 2
41
42 interrupts:
43 maxItems: 1
44
45 gpio-ranges: true
46
47 gpio-line-names:
48 minItems: 1
49 maxItems: 32
50
51 ti,gpio-always-on:
52 $ref: /schemas/types.yaml#/definitions/flag
53 description:
54 Indicates if a GPIO bank is always powered and will never lose its logic state.
55
56 ti,hwmods:
57 $ref: /schemas/types.yaml#/definitions/string
58 deprecated: true
59 description:
60 Name of the hwmod associated with the GPIO. Needed on some legacy OMAP
61 SoCs which have not been converted to the ti,sysc interconnect hierarchy.
62
63 ti,no-reset-on-init:
64 $ref: /schemas/types.yaml#/definitions/flag
65 deprecated: true
66 description:
67 Do not reset on init. Used with ti,hwmods on some legacy OMAP SoCs which
68 have not been converted to the ti,sysc interconnect hierarchy.
69
70 patternProperties:
71 "^(.+-hog(-[0-9]+)?)$":
72 type: object
73
74 required:
75 - gpio-hog
76
77 required:
78 - compatible
79 - reg
80 - gpio-controller
81 - "#gpio-cells"
82 - interrupt-controller
83 - "#interrupt-cells"
84 - interrupts
85
86 additionalProperties: false
87
88 examples:
89 - |
90 #include <dt-bindings/gpio/gpio.h>
91
92 gpio0: gpio@0 {
93 compatible = "ti,omap4-gpio";
94 reg = <0x0 0x1000>;
95 gpio-controller;
96 #gpio-cells = <2>;
97 interrupt-controller;
98 #interrupt-cells = <2>;
99 interrupts = <96>;
100 ti,gpio-always-on;
101
102 ls-buf-en-hog {
103 gpio-hog;
104 gpios = <10 GPIO_ACTIVE_HIGH>;
105 output-high;
106 line-name = "LS_BUF_EN";
107 };
108 };
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