1* Mediatek's I2C controller
2
3The Mediatek's I2C controller is used to interface with I2C devices.
4
5Required properties:
6  - compatible: value should be either of the following.
7      (a) "mediatek,mt6577-i2c", for i2c compatible with mt6577 i2c.
8      (b) "mediatek,mt6589-i2c", for i2c compatible with mt6589 i2c.
9      (c) "mediatek,mt8127-i2c", for i2c compatible with mt8127 i2c.
10      (d) "mediatek,mt8135-i2c", for i2c compatible with mt8135 i2c.
11      (e) "mediatek,mt8173-i2c", for i2c compatible with mt8173 i2c.
12  - reg: physical base address of the controller and dma base, length of memory
13    mapped region.
14  - interrupts: interrupt number to the cpu.
15  - clock-div: the fixed value for frequency divider of clock source in i2c
16    module. Each IC may be different.
17  - clocks: clock name from clock manager
18  - clock-names: Must include "main" and "dma", if enable have-pmic need include
19    "pmic" extra.
20
21Optional properties:
22  - clock-frequency: Frequency in Hz of the bus when transfer, the default value
23    is 100000.
24  - mediatek,have-pmic: platform can control i2c form special pmic side.
25    Only mt6589 and mt8135 support this feature.
26  - mediatek,use-push-pull: IO config use push-pull mode.
27
28Example:
29
30	i2c0: i2c@1100d000 {
31			compatible = "mediatek,mt6577-i2c";
32			reg = <0x1100d000 0x70>,
33			      <0x11000300 0x80>;
34			interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_LOW>;
35			clock-frequency = <400000>;
36			mediatek,have-pmic;
37			clock-div = <16>;
38			clocks = <&i2c0_ck>, <&ap_dma_ck>;
39			clock-names = "main", "dma";
40	};
41
42