GNU Linux-libre 4.14.266-gnu1
[releases.git] / 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         };