1Device tree configuration for Renesas RIIC driver 2 3Required 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 14Pinctrl properties might be needed, too. See there. 15 16Example: 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 }; 33