1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/gpio/nvidia 4 $id: http://devicetree.org/schemas/gpio/nvidia,tegra20-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: NVIDIA Tegra GPIO Controller (Tegra20 - 7 title: NVIDIA Tegra GPIO Controller (Tegra20 - Tegra210)
8 8
9 maintainers: 9 maintainers:
10 - Thierry Reding <thierry.reding@gmail.com> 10 - Thierry Reding <thierry.reding@gmail.com>
11 - Jon Hunter <jonathanh@nvidia.com> 11 - Jon Hunter <jonathanh@nvidia.com>
12 12
13 properties: 13 properties:
14 compatible: 14 compatible:
15 oneOf: 15 oneOf:
16 - enum: 16 - enum:
17 - nvidia,tegra20-gpio 17 - nvidia,tegra20-gpio
18 - nvidia,tegra30-gpio 18 - nvidia,tegra30-gpio
19 19
20 - items: 20 - items:
21 - enum: 21 - enum:
22 - nvidia,tegra114-gpio 22 - nvidia,tegra114-gpio
23 - nvidia,tegra124-gpio 23 - nvidia,tegra124-gpio
24 - nvidia,tegra210-gpio 24 - nvidia,tegra210-gpio
25 - const: nvidia,tegra30-gpio 25 - const: nvidia,tegra30-gpio
26 26
27 reg: 27 reg:
28 maxItems: 1 28 maxItems: 1
29 29
30 interrupts: 30 interrupts:
31 description: The interrupt outputs from th 31 description: The interrupt outputs from the controller. For Tegra20,
32 there should be 7 interrupts specified, 32 there should be 7 interrupts specified, and for Tegra30, there should
33 be 8 interrupts specified. 33 be 8 interrupts specified.
34 34
35 "#gpio-cells": 35 "#gpio-cells":
36 description: The first cell is the pin num 36 description: The first cell is the pin number and the second cell is used
37 to specify the GPIO polarity (0 = active 37 to specify the GPIO polarity (0 = active high, 1 = active low).
38 const: 2 38 const: 2
39 39
40 gpio-controller: true 40 gpio-controller: true
41 41
42 gpio-ranges: 42 gpio-ranges:
43 maxItems: 1 43 maxItems: 1
44 44
45 "#interrupt-cells": 45 "#interrupt-cells":
46 description: | 46 description: |
47 Should be 2. The first cell is the GPIO 47 Should be 2. The first cell is the GPIO number. The second cell is
48 used to specify flags: 48 used to specify flags:
49 49
50 bits[3:0] trigger type and level flags 50 bits[3:0] trigger type and level flags:
51 1 = low-to-high edge triggered. 51 1 = low-to-high edge triggered.
52 2 = high-to-low edge triggered. 52 2 = high-to-low edge triggered.
53 4 = active high level-sensitive. 53 4 = active high level-sensitive.
54 8 = active low level-sensitive. 54 8 = active low level-sensitive.
55 55
56 Valid combinations are 1, 2, 3, 4, 8. 56 Valid combinations are 1, 2, 3, 4, 8.
57 const: 2 57 const: 2
58 58
59 interrupt-controller: true 59 interrupt-controller: true
60 60
61 allOf: 61 allOf:
62 - if: 62 - if:
63 properties: 63 properties:
64 compatible: 64 compatible:
65 contains: 65 contains:
66 const: nvidia,tegra30-gpio 66 const: nvidia,tegra30-gpio
67 then: 67 then:
68 properties: 68 properties:
69 interrupts: 69 interrupts:
70 minItems: 8 70 minItems: 8
71 maxItems: 8 71 maxItems: 8
72 else: 72 else:
73 properties: 73 properties:
74 interrupts: 74 interrupts:
75 minItems: 7 75 minItems: 7
76 maxItems: 7 76 maxItems: 7
77 77
78 required: 78 required:
79 - compatible 79 - compatible
80 - reg 80 - reg
81 - interrupts 81 - interrupts
82 - "#gpio-cells" 82 - "#gpio-cells"
83 - gpio-controller 83 - gpio-controller
84 - "#interrupt-cells" 84 - "#interrupt-cells"
85 - interrupt-controller 85 - interrupt-controller
86 86
87 additionalProperties: 87 additionalProperties:
88 type: object 88 type: object
89 required: 89 required:
90 - gpio-hog 90 - gpio-hog
91 91
92 examples: 92 examples:
93 - | 93 - |
94 #include <dt-bindings/interrupt-controller 94 #include <dt-bindings/interrupt-controller/arm-gic.h>
95 95
96 gpio: gpio@6000d000 { 96 gpio: gpio@6000d000 {
97 compatible = "nvidia,tegra20-gpio"; 97 compatible = "nvidia,tegra20-gpio";
98 reg = <0x6000d000 0x1000>; 98 reg = <0x6000d000 0x1000>;
99 interrupts = <GIC_SPI 32 IRQ_TYPE_LEVE 99 interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
100 <GIC_SPI 33 IRQ_TYPE_LEVE 100 <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
101 <GIC_SPI 34 IRQ_TYPE_LEVE 101 <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
102 <GIC_SPI 35 IRQ_TYPE_LEVE 102 <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
103 <GIC_SPI 55 IRQ_TYPE_LEVE 103 <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
104 <GIC_SPI 87 IRQ_TYPE_LEVE 104 <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>,
105 <GIC_SPI 89 IRQ_TYPE_LEVE 105 <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
106 #gpio-cells = <2>; 106 #gpio-cells = <2>;
107 gpio-controller; 107 gpio-controller;
108 #interrupt-cells = <2>; 108 #interrupt-cells = <2>;
109 interrupt-controller; 109 interrupt-controller;
110 }; 110 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.