renesas,rmobile-iic.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/renesas,rmobile-iic.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Renesas R-Mobile I2C Bus Interface (IIC)
    8 
    9 maintainers:
   10   - Wolfram Sang <wsa+renesas@sang-engineering.com>
   11 
   12 properties:
   13   compatible:
   14     oneOf:
   15       - items:
   16           - enum:
   17               - renesas,iic-r8a73a4      # R-Mobile APE6
   18               - renesas,iic-r8a7740      # R-Mobile A1
   19               - renesas,iic-sh73a0       # SH-Mobile AG5
   20           - const: renesas,rmobile-iic   # Generic
   21 
   22       - items:
   23           - enum:
   24               - renesas,iic-r8a7742      # RZ/G1H
   25               - renesas,iic-r8a7743      # RZ/G1M
   26               - renesas,iic-r8a7744      # RZ/G1N
   27               - renesas,iic-r8a7745      # RZ/G1E
   28               - renesas,iic-r8a7790      # R-Car H2
   29               - renesas,iic-r8a7791      # R-Car M2-W
   30               - renesas,iic-r8a7792      # R-Car V2H
   31               - renesas,iic-r8a7793      # R-Car M2-N
   32               - renesas,iic-r8a7794      # R-Car E2
   33           - const: renesas,rcar-gen2-iic # R-Car Gen2 and RZ/G1
   34           - const: renesas,rmobile-iic   # Generic
   35 
   36       - items:
   37           - enum:
   38               - renesas,iic-r8a774a1     # RZ/G2M
   39               - renesas,iic-r8a774b1     # RZ/G2N
   40               - renesas,iic-r8a774c0     # RZ/G2E
   41               - renesas,iic-r8a774e1     # RZ/G2H
   42               - renesas,iic-r8a7795      # R-Car H3
   43               - renesas,iic-r8a7796      # R-Car M3-W
   44               - renesas,iic-r8a77961     # R-Car M3-W+
   45               - renesas,iic-r8a77965     # R-Car M3-N
   46               - renesas,iic-r8a77990     # R-Car E3
   47           - const: renesas,rcar-gen3-iic # R-Car Gen3 and RZ/G2
   48           - const: renesas,rmobile-iic   # Generic
   49 
   50   reg:
   51     maxItems: 1
   52 
   53   interrupts: true
   54 
   55   clock-frequency:
   56     description:
   57       Desired I2C bus clock frequency in Hz. The absence of this property
   58       indicates the default frequency 100 kHz.
   59 
   60   clocks:
   61     maxItems: 1
   62 
   63   power-domains:
   64     maxItems: 1
   65 
   66   resets:
   67     maxItems: 1
   68 
   69   dmas:
   70     minItems: 2
   71     maxItems: 4
   72     description:
   73       Must contain a list of pairs of references to DMA specifiers, one for
   74       transmission, and one for reception.
   75 
   76   dma-names:
   77     minItems: 2
   78     maxItems: 4
   79     items:
   80       enum:
   81         - tx
   82         - rx
   83 
   84 required:
   85   - compatible
   86   - reg
   87   - interrupts
   88   - clocks
   89   - power-domains
   90   - '#address-cells'
   91   - '#size-cells'
   92 
   93 allOf:
   94   - $ref: /schemas/i2c/i2c-controller.yaml#
   95 
   96   - if:
   97       properties:
   98         compatible:
   99           contains:
  100             enum:
  101               - renesas,iic-r8a7740
  102               - renesas,iic-sh73a0
  103     then:
  104       properties:
  105         interrupts:
  106           items:
  107             - description: Arbitration Lost Interrupt (ALI)
  108             - description: Non-acknowledge Detection Interrupt (TACKI)
  109             - description: Wait Interrupt (WAITI)
  110             - description: Data Transmit Enable interrupt (DTEI)
  111     else:
  112       properties:
  113         interrupts:
  114           items:
  115             - description: Single combined interrupt
  116 
  117   - if:
  118       properties:
  119         compatible:
  120           contains:
  121             enum:
  122               - renesas,rcar-gen2-iic
  123               - renesas,rcar-gen3-iic
  124     then:
  125       required:
  126         - resets
  127 
  128 unevaluatedProperties: false
  129 
  130 examples:
  131   - |
  132     #include <dt-bindings/clock/r8a7790-cpg-mssr.h>
  133     #include <dt-bindings/interrupt-controller/arm-gic.h>
  134     #include <dt-bindings/power/r8a7790-sysc.h>
  135 
  136     iic0: i2c@e6500000 {
  137             compatible = "renesas,iic-r8a7790", "renesas,rcar-gen2-iic",
  138                          "renesas,rmobile-iic";
  139             reg = <0xe6500000 0x425>;
  140             interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
  141             clocks = <&cpg CPG_MOD 318>;
  142             clock-frequency = <400000>;
  143             dmas = <&dmac0 0x61>, <&dmac0 0x62>, <&dmac1 0x61>, <&dmac1 0x62>;
  144             dma-names = "tx", "rx", "tx", "rx";
  145             power-domains = <&sysc R8A7790_PD_ALWAYS_ON>;
  146             resets = <&cpg 318>;
  147             #address-cells = <1>;
  148             #size-cells = <0>;
  149     };

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/i2c/renesas,rmobile-iic.yaml

FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/i2c/renesas,rmobile-iic.yaml