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linux-next/Documentation/devicetree/bindings/i2c/i2c-uniphier-f.txt
Masahiro Yamada 6a62974b66 i2c: uniphier_f: add UniPhier FIFO-builtin I2C driver
Add support for on-chip I2C controller used on newer UniPhier SoCs
such as PH1-Pro4, PH1-Pro5, etc.  This adapter is equipped with
8-depth TX/RX FIFOs.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-10-23 21:55:46 +02:00

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UniPhier I2C controller (FIFO-builtin)
Required properties:
- compatible: should be "socionext,uniphier-fi2c".
- #address-cells: should be 1.
- #size-cells: should be 0.
- reg: offset and length of the register set for the device.
- interrupts: a single interrupt specifier.
- clocks: phandle to the input clock.
Optional properties:
- clock-frequency: desired I2C bus frequency in Hz. The maximum supported
value is 400000. Defaults to 100000 if not specified.
Examples:
i2c0: i2c@58780000 {
compatible = "socionext,uniphier-fi2c";
reg = <0x58780000 0x80>;
#address-cells = <1>;
#size-cells = <0>;
interrupts = <0 41 4>;
clocks = <&i2c_clk>;
clock-frequency = <100000>;
};