FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/i2c/renesas,riic.txt

     Device tree configuration for Renesas RIIC driver
     
     Required properties:
     - compatible      :
             "renesas,riic-r7s72100" if the device is a part of a R7S72100 SoC.
             "renesas,riic-r7s9210" if the device is a part of a R7S9210 SoC.
             "renesas,riic-rz" for a generic RZ/A compatible device.
     - reg             : address start and address range size of device
     - interrupts      : 8 interrupts (TEI, RI, TI, SPI, STI, NAKI, ALI, TMOI)
    - clock-frequency : frequency of bus clock in Hz
    - #address-cells  : should be <1>
    - #size-cells     : should be <0>
    
    Pinctrl properties might be needed, too. See there.
    
    Example:
    
            i2c0: i2c@fcfee000 {
                    compatible = "renesas,riic-r7s72100", "renesas,riic-rz";
                    reg = <0xfcfee000 0x44>;
                    interrupts = <0 157 IRQ_TYPE_LEVEL_HIGH>,
                                 <0 158 IRQ_TYPE_EDGE_RISING>,
                                 <0 159 IRQ_TYPE_EDGE_RISING>,
                                 <0 160 IRQ_TYPE_LEVEL_HIGH>,
                                 <0 161 IRQ_TYPE_LEVEL_HIGH>,
                                 <0 162 IRQ_TYPE_LEVEL_HIGH>,
                                 <0 163 IRQ_TYPE_LEVEL_HIGH>,
                                 <0 164 IRQ_TYPE_LEVEL_HIGH>;
                    clock-frequency = <100000>;
                    #address-cells = <1>;
                    #size-cells = <0>;
            };

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