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Documentation / devicetree / bindings / i2c / i2c-sh_mobile.txt


Based on kernel version 4.16.1. Page generated on 2018-04-09 11:52 EST.

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