1Device tree configuration for Renesas IIC (sh_mobile) driver
2
3Required properties:
4- compatible      :
5			- "renesas,iic-r8a73a4" (R-Mobile APE6)
6			- "renesas,iic-r8a7740" (R-Mobile A1)
7			- "renesas,iic-r8a7743" (RZ/G1M)
8			- "renesas,iic-r8a7745" (RZ/G1E)
9			- "renesas,iic-r8a774a1" (RZ/G2M)
10			- "renesas,iic-r8a7790" (R-Car H2)
11			- "renesas,iic-r8a7791" (R-Car M2-W)
12			- "renesas,iic-r8a7792" (R-Car V2H)
13			- "renesas,iic-r8a7793" (R-Car M2-N)
14			- "renesas,iic-r8a7794" (R-Car E2)
15			- "renesas,iic-r8a7795" (R-Car H3)
16			- "renesas,iic-r8a7796" (R-Car M3-W)
17			- "renesas,iic-r8a77965" (R-Car M3-N)
18			- "renesas,iic-sh73a0" (SH-Mobile AG5)
19			- "renesas,rcar-gen2-iic" (generic R-Car Gen2 or RZ/G1
20							compatible device)
21			- "renesas,rcar-gen3-iic" (generic R-Car Gen3 or RZ/G2
22							compatible device)
23			- "renesas,rmobile-iic" (generic device)
24
25			When compatible with a generic R-Car version, nodes
26			must list the SoC-specific version corresponding to
27			the platform first followed by the generic R-Car
28			version.
29
30			renesas,rmobile-iic must always follow.
31
32- reg             : address start and address range size of device
33- interrupts      : interrupt of device
34- clocks          : clock for device
35- #address-cells  : should be <1>
36- #size-cells     : should be <0>
37
38Optional properties:
39- clock-frequency : frequency of bus clock in Hz. Default 100kHz if unset.
40- dmas            : Must contain a list of two references to DMA
41		    specifiers, one for transmission, and one for
42		    reception.
43- dma-names       : Must contain a list of two DMA names, "tx" and "rx".
44
45
46Pinctrl properties might be needed, too. See there.
47
48Example:
49
50	iic0: i2c@e6500000 {
51		compatible = "renesas,iic-r8a7790", "renesas,rcar-gen2-iic",
52			     "renesas,rmobile-iic";
53		reg = <0 0xe6500000 0 0x425>;
54		interrupts = <0 174 IRQ_TYPE_LEVEL_HIGH>;
55		clocks = <&mstp3_clks R8A7790_CLK_IIC0>;
56		clock-frequency = <400000>;
57		#address-cells = <1>;
58		#size-cells = <0>;
59	};
60