xref: /linux/Documentation/devicetree/bindings/i2c/i2c-owl.yaml (revision 6dcb8bf9a1d7f6d137a17b76177cd67e9b8e023d) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/i2c/i2c-owl.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Actions Semi Owl I2C Controller
8
9maintainers:
10  - Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
11
12description: |
13  This I2C controller is found in the Actions Semi Owl SoCs:
14  S500, S700 and S900.
15
16allOf:
17  - $ref: /schemas/i2c/i2c-controller.yaml#
18
19properties:
20  compatible:
21    enum:
22      - actions,s500-i2c # Actions Semi S500 compatible SoCs
23      - actions,s700-i2c # Actions Semi S700 compatible SoCs
24      - actions,s900-i2c # Actions Semi S900 compatible SoCs
25
26  reg:
27    maxItems: 1
28
29  interrupts:
30    maxItems: 1
31
32  clocks:
33    description: Phandle of the clock feeding the I2C controller.
34    minItems: 1
35
36  clock-frequency:
37    description: |
38      Desired I2C bus clock frequency in Hz. As only Standard and Fast
39      modes are supported, possible values are 100000 and 400000.
40    enum: [100000, 400000]
41
42required:
43  - compatible
44  - reg
45  - interrupts
46  - clocks
47
48unevaluatedProperties: false
49
50examples:
51  - |
52    #include <dt-bindings/clock/actions,s900-cmu.h>
53    #include <dt-bindings/interrupt-controller/arm-gic.h>
54    i2c@e0170000 {
55        compatible = "actions,s900-i2c";
56        reg = <0xe0170000 0x1000>;
57        interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
58        clocks = <&cmu CLK_I2C0>;
59        clock-frequency = <100000>;
60    };
61
62...
63