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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/i2c/ingenic,i2c.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/i2c/ingenic,i2c.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: Ingenic SoCs I2C controller

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maintainers:

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  - Paul Cercueil <paul@crapouillou.net>

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allOf:

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  - $ref: /schemas/i2c/i2c-controller.yaml#

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properties:

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  $nodename:

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    pattern: "^i2c@[0-9a-f]+$"

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  compatible:

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    oneOf:

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      - enum:

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          - ingenic,jz4770-i2c

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          - ingenic,x1000-i2c

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      - items:

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          - const: ingenic,jz4780-i2c

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          - const: ingenic,jz4770-i2c

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  reg:

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    maxItems: 1

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  interrupts:

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    maxItems: 1

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  clocks:

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    maxItems: 1

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  clock-frequency:

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    enum: [ 100000, 400000 ]

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  dmas:

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    items:

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      - description: DMA controller phandle and request line for RX

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      - description: DMA controller phandle and request line for TX

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  dma-names:

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    items:

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      - const: rx

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      - const: tx

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required:

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  - compatible

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  - reg

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  - interrupts

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  - clocks

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  - clock-frequency

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  - dmas

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  - dma-names

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unevaluatedProperties: false

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examples:

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  - |

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    #include <dt-bindings/clock/ingenic,jz4780-cgu.h>

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    #include <dt-bindings/dma/jz4780-dma.h>

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    #include <dt-bindings/interrupt-controller/irq.h>

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    i2c@10054000 {

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      compatible = "ingenic,jz4780-i2c", "ingenic,jz4770-i2c";

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      #address-cells = <1>;

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      #size-cells = <0>;

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      reg = <0x10054000 0x1000>;

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      interrupts = <56 IRQ_TYPE_LEVEL_LOW>;

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      clocks = <&cgu JZ4780_CLK_SMB4>;

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      pinctrl-names = "default";

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      pinctrl-0 = <&pins_i2c4_data>;

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      dmas = <&dma JZ4780_DMA_SMB4_RX 0xffffffff>,

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             <&dma JZ4780_DMA_SMB4_TX 0xffffffff>;

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      dma-names = "rx", "tx";

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      clock-frequency = <400000>;

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      rtc@51 {

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        compatible = "nxp,pcf8563";

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        reg = <0x51>;

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        interrupts = <30 IRQ_TYPE_LEVEL_LOW>;

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      };

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    };

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