Documentation/devicetree/bindings/i2c/renesas,riic.txt

   1 Device tree configuration for Renesas RIIC driver
   2
   3 Required properties:
   4 - compatible      :
   5         "renesas,riic-r7s72100" if the device is a part of a R7S72100 SoC.
   6         "renesas,riic-r7s9210" if the device is a part of a R7S9210 SoC.
   7         "renesas,riic-rz" for a generic RZ/A compatible device.
   8 - reg             : address start and address range size of device
   9 - interrupts      : 8 interrupts (TEI, RI, TI, SPI, STI, NAKI, ALI, TMOI)
  10 - clock-frequency : frequency of bus clock in Hz
  11 - #address-cells  : should be <1>
  12 - #size-cells     : should be <0>
  13
  14 Pinctrl properties might be needed, too. See there.
  15
  16 Example:
  17
  18         i2c0: i2c@fcfee000 {
  19                 compatible = "renesas,riic-r7s72100", "renesas,riic-rz";
  20                 reg = <0xfcfee000 0x44>;
  21                 interrupts = <0 157 IRQ_TYPE_LEVEL_HIGH>,
  22                              <0 158 IRQ_TYPE_EDGE_RISING>,
  23                              <0 159 IRQ_TYPE_EDGE_RISING>,
  24                              <0 160 IRQ_TYPE_LEVEL_HIGH>,
  25                              <0 161 IRQ_TYPE_LEVEL_HIGH>,
  26                              <0 162 IRQ_TYPE_LEVEL_HIGH>,
  27                              <0 163 IRQ_TYPE_LEVEL_HIGH>,
  28                              <0 164 IRQ_TYPE_LEVEL_HIGH>;
  29                 clock-frequency = <100000>;
  30                 #address-cells = <1>;
  31                 #size-cells = <0>;
  32         };