xref: /freebsd/sys/contrib/device-tree/Bindings/i2c/brcm,iproc-i2c.yaml (revision 058ac3e8063366dafa634d9107642e12b038bf09) 
1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/i2c/brcm,iproc-i2c.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Broadcom iProc I2C controller
8
9maintainers:
10  - Rafał Miłecki <rafal@milecki.pl>
11
12properties:
13  compatible:
14    enum:
15      - brcm,iproc-i2c
16      - brcm,iproc-nic-i2c
17
18  reg:
19    maxItems: 1
20
21  clock-frequency:
22    enum: [ 100000, 400000 ]
23
24  interrupts:
25    description: |
26      Should contain the I2C interrupt. For certain revisions of the I2C
27      controller, I2C interrupt is unwired to the interrupt controller. In such
28      case, this property should be left unspecified, and driver will fall back
29      to polling mode
30    maxItems: 1
31
32  brcm,ape-hsls-addr-mask:
33    $ref: /schemas/types.yaml#/definitions/uint32
34    description: Host view of address mask into the 'APE' co-processor
35
36allOf:
37  - $ref: /schemas/i2c/i2c-controller.yaml#
38  - if:
39      properties:
40        compatible:
41          contains:
42            const: brcm,iproc-nic-i2c
43    then:
44      required:
45        - brcm,ape-hsls-addr-mask
46
47unevaluatedProperties: false
48
49required:
50  - reg
51  - clock-frequency
52  - '#address-cells'
53  - '#size-cells'
54
55examples:
56  - |
57    #include <dt-bindings/interrupt-controller/arm-gic.h>
58
59    i2c@18008000 {
60        compatible = "brcm,iproc-i2c";
61        reg = <0x18008000 0x100>;
62        #address-cells = <1>;
63        #size-cells = <0>;
64        interrupts = <GIC_SPI 85 IRQ_TYPE_NONE>;
65        clock-frequency = <100000>;
66
67        wm8750@1a {
68            compatible = "wlf,wm8750";
69            reg = <0x1a>;
70        };
71    };
72