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Documentation / devicetree / bindings / i2c / i2c-exynos5.txt




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Based on kernel version 3.16. Page generated on 2014-08-06 21:37 EST.

1	* Samsung's High Speed I2C controller
2	
3	The Samsung's High Speed I2C controller is used to interface with I2C devices
4	at various speeds ranging from 100khz to 3.4Mhz.
5	
6	Required properties:
7	  - compatible: value should be.
8		-> "samsung,exynos5-hsi2c", (DEPRECATED)
9					for i2c compatible with HSI2C available
10					on Exynos5250 and Exynos5420 SoCs.
11		-> "samsung,exynos5250-hsi2c", for i2c compatible with HSI2C available
12					on Exynos5250 and Exynos5420 SoCs.
13		-> "samsung,exynos5260-hsi2c", for i2c compatible with HSI2C available
14					on Exynos5260 SoCs.
15	
16	  - reg: physical base address of the controller and length of memory mapped
17	    region.
18	  - interrupts: interrupt number to the cpu.
19	  - #address-cells: always 1 (for i2c addresses)
20	  - #size-cells: always 0
21	
22	  - Pinctrl:
23	    - pinctrl-0: Pin control group to be used for this controller.
24	    - pinctrl-names: Should contain only one value - "default".
25	
26	Optional properties:
27	  - clock-frequency: Desired operating frequency in Hz of the bus.
28	    -> If not specified, the bus operates in fast-speed mode at
29	       at 100khz.
30	    -> If specified, the bus operates in high-speed mode only if the
31	       clock-frequency is >= 1Mhz.
32	
33	Example:
34	
35	hsi2c@12ca0000 {
36		compatible = "samsung,exynos5250-hsi2c";
37		reg = <0x12ca0000 0x100>;
38		interrupts = <56>;
39		clock-frequency = <100000>;
40	
41		pinctrl-0 = <&i2c4_bus>;
42		pinctrl-names = "default";
43	
44		#address-cells = <1>;
45		#size-cells = <0>;
46	
47		s2mps11_pmic@66 {
48			compatible = "samsung,s2mps11-pmic";
49			reg = <0x66>;
50		};
51	};
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