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