Documentation/devicetree/bindings/i2c/i2c-riic.txt

   1 Device tree configuration for Renesas RIIC driver
   2
   3 Required properties:
   4 - compatible      : "renesas,riic-<soctype>". "renesas,riic-rz" as fallback
   5 - reg             : address start and address range size of device
   6 - interrupts      : 8 interrupts (TEI, RI, TI, SPI, STI, NAKI, ALI, TMOI)
   7 - clock-frequency : frequency of bus clock in Hz
   8 - #address-cells  : should be <1>
   9 - #size-cells     : should be <0>
  10
  11 Pinctrl properties might be needed, too. See there.
  12
  13 Example:
  14
  15         i2c0: i2c@fcfee000 {
  16                 compatible = "renesas,riic-r7s72100", "renesas,riic-rz";
  17                 reg = <0xfcfee000 0x44>;
  18                 interrupts = <0 157 IRQ_TYPE_LEVEL_HIGH>,
  19                              <0 158 IRQ_TYPE_EDGE_RISING>,
  20                              <0 159 IRQ_TYPE_EDGE_RISING>,
  21                              <0 160 IRQ_TYPE_LEVEL_HIGH>,
  22                              <0 161 IRQ_TYPE_LEVEL_HIGH>,
  23                              <0 162 IRQ_TYPE_LEVEL_HIGH>,
  24                              <0 163 IRQ_TYPE_LEVEL_HIGH>,
  25                              <0 164 IRQ_TYPE_LEVEL_HIGH>;
  26                 clock-frequency = <100000>;
  27                 #address-cells = <1>;
  28                 #size-cells = <0>;
  29         };