bindings/i2c/snps%2Cdesignware-i2c.yaml

1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/i2c/snps,designware-i2c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Jarkko Nikula <jarkko.nikula@linux.intel.com>
13   - $ref: /schemas/i2c/i2c-controller.yaml#
14   - if:
19               const: mscc,ocelot-i2c
23           maxItems: 1
28       - description: Generic Synopsys DesignWare I2C controller
29         const: snps,designware-i2c
30       - description: Microsemi Ocelot SoCs I2C controller
32           - const: mscc,ocelot-i2c
33           - const: snps,designware-i2c
34       - description: Baikal-T1 SoC System I2C controller
35         const: baikal,bt1-sys-i2c
38     minItems: 1
40       - description: DW APB I2C controller memory mapped registers
41       - description: |
43           This registers are specific to the Ocelot I2C-controller.
46     maxItems: 1
49     minItems: 1
51       - description: I2C controller reference clock source
52       - description: APB interface clock source
54   clock-names:
55     minItems: 1
57       - const: ref
58       - const: pclk
61     maxItems: 1
63   clock-frequency:
68   i2c-sda-hold-time-ns:
74   i2c-scl-falling-time-ns:
80   i2c-sda-falling-time-ns:
88       - description: TX DMA Channel
89       - description: RX DMA Channel
91   dma-names:
93       - const: tx
94       - const: rx
99   - compatible
100   - reg
101   - interrupts
104   - |
106       compatible = "snps,designware-i2c";
109       clock-frequency = <400000>;
111   - |
113       compatible = "snps,designware-i2c";
115       interrupts = <12 1>;
116       clock-frequency = <400000>;
117       i2c-sda-hold-time-ns = <300>;
118       i2c-sda-falling-time-ns = <300>;
119       i2c-scl-falling-time-ns = <300>;
121   - |
123       compatible = "snps,designware-i2c";
125       #address-cells = <1>;
126       #size-cells = <0>;
127       clock-frequency = <400000>;
136   - |
138       compatible = "mscc,ocelot-i2c", "snps,designware-i2c";
140       pinctrl-0 = <&i2c_pins>;
141       pinctrl-names = "default";