ingenic,i2c.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/i2c/ingenic,i2c.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Ingenic SoCs I2C controller devicetree bindings
    8 
    9 maintainers:
   10   - Paul Cercueil <paul@crapouillou.net>
   11 
   12 allOf:
   13   - $ref: /schemas/i2c/i2c-controller.yaml#
   14 
   15 properties:
   16   $nodename:
   17     pattern: "^i2c@[0-9a-f]+$"
   18 
   19   compatible:
   20     oneOf:
   21       - enum:
   22           - ingenic,jz4770-i2c
   23           - ingenic,x1000-i2c
   24       - items:
   25           - const: ingenic,jz4780-i2c
   26           - const: ingenic,jz4770-i2c
   27 
   28   reg:
   29     maxItems: 1
   30 
   31   interrupts:
   32     maxItems: 1
   33 
   34   clocks:
   35     maxItems: 1
   36 
   37   clock-frequency:
   38     enum: [ 100000, 400000 ]
   39 
   40   dmas:
   41     items:
   42       - description: DMA controller phandle and request line for RX
   43       - description: DMA controller phandle and request line for TX
   44 
   45   dma-names:
   46     items:
   47       - const: rx
   48       - const: tx
   49 
   50 required:
   51   - compatible
   52   - reg
   53   - interrupts
   54   - clocks
   55   - clock-frequency
   56   - dmas
   57   - dma-names
   58 
   59 unevaluatedProperties: false
   60 
   61 examples:
   62   - |
   63     #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
   64     #include <dt-bindings/dma/jz4780-dma.h>
   65     #include <dt-bindings/interrupt-controller/irq.h>
   66     i2c@10054000 {
   67       compatible = "ingenic,jz4780-i2c", "ingenic,jz4770-i2c";
   68       #address-cells = <1>;
   69       #size-cells = <0>;
   70       reg = <0x10054000 0x1000>;
   71 
   72       interrupts = <56 IRQ_TYPE_LEVEL_LOW>;
   73 
   74       clocks = <&cgu JZ4780_CLK_SMB4>;
   75       pinctrl-names = "default";
   76       pinctrl-0 = <&pins_i2c4_data>;
   77 
   78       dmas = <&dma JZ4780_DMA_SMB4_RX 0xffffffff>,
   79              <&dma JZ4780_DMA_SMB4_TX 0xffffffff>;
   80       dma-names = "rx", "tx";
   81 
   82       clock-frequency = <400000>;
   83 
   84       rtc@51 {
   85         compatible = "nxp,pcf8563";
   86         reg = <0x51>;
   87 
   88         interrupts = <30 IRQ_TYPE_LEVEL_LOW>;
   89       };
   90     };

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sys/contrib/device-tree/Bindings/i2c/ingenic,i2c.yaml