[deliverable/linux.git] / Documentation / devicetree / bindings / i2c / i2c-rcar.txt

I2C for R-Car platforms

Required properties:
- compatible: Must be one of
	"renesas,i2c-rcar"
	"renesas,i2c-r8a7778"
	"renesas,i2c-r8a7779"
	"renesas,i2c-r8a7790"
	"renesas,i2c-r8a7791"
	"renesas,i2c-r8a7792"
	"renesas,i2c-r8a7793"
	"renesas,i2c-r8a7794"
- reg: physical base address of the controller and length of memory mapped
  region.
- interrupts: interrupt specifier.

Optional properties:
- clock-frequency: desired I2C bus clock frequency in Hz. The absence of this
  propoerty indicates the default frequency 100 kHz.
- clocks: clock specifier.

Examples :

i2c0: i2c@e6508000 {
	#address-cells = <1>;
	#size-cells = <0>;
	compatible = "renesas,i2c-r8a7791";
	reg = <0 0xe6508000 0 0x40>;
	interrupts = <0 287 IRQ_TYPE_LEVEL_HIGH>;
	clocks = <&mstp9_clks R8A7791_CLK_I2C0>;
	clock-frequency = <400000>;
};
Commit	Line	Data
7679c0e1 GL	1	I2C for R-Car platforms
	2
	3	Required properties:
	4	- compatible: Must be one of
	5	"renesas,i2c-rcar"
	6	"renesas,i2c-r8a7778"
	7	"renesas,i2c-r8a7779"
	8	"renesas,i2c-r8a7790"
e8936455	9	"renesas,i2c-r8a7791"
819a3951 WS	10	"renesas,i2c-r8a7792"
	11	"renesas,i2c-r8a7793"
	12	"renesas,i2c-r8a7794"
7679c0e1 GL	13	- reg: physical base address of the controller and length of memory mapped
	14	region.
	15	- interrupts: interrupt specifier.
	16
	17	Optional properties:
	18	- clock-frequency: desired I2C bus clock frequency in Hz. The absence of this
	19	propoerty indicates the default frequency 100 kHz.
e8936455	20	- clocks: clock specifier.
7679c0e1 GL	21
	22	Examples :
	23
e8936455 WS	24	i2c0: i2c@e6508000 {
	25	#address-cells = <1>;
	26	#size-cells = <0>;
	27	compatible = "renesas,i2c-r8a7791";
	28	reg = <0 0xe6508000 0 0x40>;
	29	interrupts = <0 287 IRQ_TYPE_LEVEL_HIGH>;
	30	clocks = <&mstp9_clks R8A7791_CLK_I2C0>;
	31	clock-frequency = <400000>;
7679c0e1	32	};