diff options
| author | Masahiro Yamada <yamada.masahiro@socionext.com> | 2015-10-23 19:52:00 +0900 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2015-10-23 21:55:46 +0200 |
| commit | 6a62974b667f3976ec44e255bed31746cca1ff51 (patch) | |
| tree | 4bd9feef24538d9383ac6906d63b770241309069 /Documentation/devicetree/bindings/i2c/i2c-uniphier-f.txt | |
| parent | dd6fd4a3279310bac214867e31848f47e13caa6f (diff) | |
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>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c/i2c-uniphier-f.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-uniphier-f.txt | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-uniphier-f.txt b/Documentation/devicetree/bindings/i2c/i2c-uniphier-f.txt new file mode 100644 index 000000000000..27fc6f8c798b --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-uniphier-f.txt @@ -0,0 +1,25 @@ +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>; + }; |