xref: /linux/Documentation/devicetree/bindings/interrupt-controller/fsl,ls-extirq.yaml (revision 974099e40e924a911000541fea0b59d075a3d1d0) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/interrupt-controller/fsl,ls-extirq.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale Layerscape External Interrupt Controller
8
9maintainers:
10  - Shawn Guo <shawnguo@kernel.org>
11
12description: |
13  Some Layerscape SOCs (LS1021A, LS1043A, LS1046A LS1088A, LS208xA,
14  LX216xA) support inverting the polarity of certain external interrupt
15  lines.
16
17properties:
18  compatible:
19    oneOf:
20      - enum:
21          - fsl,ls1021a-extirq
22          - fsl,ls1043a-extirq
23          - fsl,ls1088a-extirq
24      - items:
25          - enum:
26              - fsl,ls1046a-extirq
27          - const: fsl,ls1043a-extirq
28      - items:
29          - enum:
30              - fsl,ls2080a-extirq
31              - fsl,lx2160a-extirq
32          - const: fsl,ls1088a-extirq
33
34  '#interrupt-cells':
35    const: 2
36
37  '#address-cells':
38    const: 0
39
40  interrupt-controller: true
41
42  reg:
43    maxItems: 1
44    description:
45      Specifies the Interrupt Polarity Control Register (INTPCR) in the
46      SCFG or the External Interrupt Control Register (IRQCR) in the ISC.
47
48  interrupt-map:
49    description: Specifies the mapping from external interrupts to GIC interrupts.
50
51  interrupt-map-mask: true
52
53required:
54  - compatible
55  - '#interrupt-cells'
56  - '#address-cells'
57  - interrupt-controller
58  - reg
59  - interrupt-map
60  - interrupt-map-mask
61
62allOf:
63  - if:
64      properties:
65        compatible:
66          contains:
67            enum:
68              - fsl,ls1021a-extirq
69    then:
70      properties:
71        interrupt-map:
72          minItems: 6
73          maxItems: 6
74        interrupt-map-mask:
75          items:
76            - const: 0x7
77            - const: 0
78  - if:
79      properties:
80        compatible:
81          contains:
82            enum:
83              - fsl,ls1043a-extirq
84              - fsl,ls1046a-extirq
85    then:
86      properties:
87        interrupt-map:
88          minItems: 12
89          maxItems: 12
90        interrupt-map-mask:
91          items:
92            - const: 0xf
93            - const: 0
94
95  - if:
96      properties:
97        compatible:
98          contains:
99            enum:
100              - fsl,ls1088a-extirq
101              - fsl,ls2080a-extirq
102              - fsl,lx2160a-extirq
103# The driver(drivers/irqchip/irq-ls-extirq.c) have not use standard DT
104# function to parser interrupt-map. So it doesn't consider '#address-size'
105# in parent interrupt controller, such as GIC.
106#
107# When dt-binding verify interrupt-map, item data matrix is spitted at
108# incorrect position. Remove interrupt-map restriction because it always
109# wrong.
110
111    then:
112      properties:
113        interrupt-map-mask:
114          items:
115            - const: 0xf
116            - const: 0
117
118additionalProperties: false
119
120examples:
121  - |
122    #include <dt-bindings/interrupt-controller/arm-gic.h>
123    interrupt-controller@1ac {
124            compatible = "fsl,ls1021a-extirq";
125            #interrupt-cells = <2>;
126            #address-cells = <0>;
127            interrupt-controller;
128            reg = <0x1ac 4>;
129            interrupt-map =
130                    <0 0 &gic GIC_SPI 163 IRQ_TYPE_LEVEL_HIGH>,
131                    <1 0 &gic GIC_SPI 164 IRQ_TYPE_LEVEL_HIGH>,
132                    <2 0 &gic GIC_SPI 165 IRQ_TYPE_LEVEL_HIGH>,
133                    <3 0 &gic GIC_SPI 167 IRQ_TYPE_LEVEL_HIGH>,
134                    <4 0 &gic GIC_SPI 168 IRQ_TYPE_LEVEL_HIGH>,
135                    <5 0 &gic GIC_SPI 169 IRQ_TYPE_LEVEL_HIGH>;
136            interrupt-map-mask = <0x7 0x0>;
137    };
138