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| author | Anders Berg <anders.berg@avagotech.com> | 2014-10-03 13:08:02 +0200 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2014-10-03 14:11:53 +0200 |
| commit | 08678b850cd0c49cc49c7fed0c93f720f85368e8 (patch) | |
| tree | d8c2d3c7d9f0b8870eaafcaf7664288839676746 /Documentation | |
| parent | 2374a5399b7263eb1afc6b5522a56ebf9f0b8636 (diff) | |
| download | linux-08678b850cd0c49cc49c7fed0c93f720f85368e8.tar.gz linux-08678b850cd0c49cc49c7fed0c93f720f85368e8.tar.bz2 linux-08678b850cd0c49cc49c7fed0c93f720f85368e8.zip | |
i2c: axxia: Add I2C driver for AXM55xx
Add I2C bus driver for the controller found in the LSI Axxia family SoCs. The
driver implements 10-bit addressing and SMBus transfer modes via emulation
(including SMBus block data read).
Signed-off-by: Anders Berg <anders.berg@avagotech.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-axxia.txt | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-axxia.txt b/Documentation/devicetree/bindings/i2c/i2c-axxia.txt new file mode 100644 index 000000000000..2296d782b4c2 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/i2c-axxia.txt @@ -0,0 +1,30 @@ +LSI Axxia I2C + +Required properties : +- compatible : Must be "lsi,api2c" +- reg : Offset and length of the register set for the device +- interrupts : the interrupt specifier +- #address-cells : Must be <1>; +- #size-cells : Must be <0>; +- clock-names : Must contain "i2c". +- clocks: Must contain an entry for each name in clock-names. See the common + clock bindings. + +Optional properties : +- clock-frequency : Desired I2C bus clock frequency in Hz. If not specified, + the default 100 kHz frequency will be used. As only Normal and Fast modes + are supported, possible values are 100000 and 400000. + +Example : + +i2c@02010084000 { + compatible = "lsi,api2c"; + device_type = "i2c"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0x20 0x10084000 0x00 0x1000>; + interrupts = <0 19 4>; + clocks = <&clk_per>; + clock-names = "i2c"; + clock-frequency = <400000>; +}; |