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| author | Marek Roszko <mark.roszko@gmail.com> | 2014-03-11 00:25:38 -0400 |
|---|---|---|
| committer | Wolfram Sang <wsa@the-dreams.de> | 2014-03-12 08:26:04 +0100 |
| commit | 75b6c4b68f0b4cb94b1780f1863766a589aebc95 (patch) | |
| tree | 34757b34ef8c9e222a66424127a9c287690b3754 /Documentation | |
| parent | 6808b002520de85aaa77237f4a9d33376fa393e9 (diff) | |
| download | linux-75b6c4b68f0b4cb94b1780f1863766a589aebc95.tar.gz linux-75b6c4b68f0b4cb94b1780f1863766a589aebc95.tar.bz2 linux-75b6c4b68f0b4cb94b1780f1863766a589aebc95.zip | |
i2c: at91: Add device tree property to set clock-frequency
This adds the ability to set "clock-frequency" in the device tree for the at91
i2cbus following the naming of other i2c bus implementations. If the property
is not set,the clock frequency will default to the previously used define
of 100KHz.
Signed-off-by: Marek Roszko <mark.roszko@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-at91.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-at91.txt b/Documentation/devicetree/bindings/i2c/i2c-at91.txt index 4fade84bea16..388f0a275fba 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-at91.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-at91.txt @@ -12,6 +12,7 @@ Required properties : - clocks: phandles to input clocks. Optional properties: +- clock-frequency: Desired I2C bus frequency in Hz, otherwise defaults to 100000 - Child nodes conforming to i2c bus binding Examples : @@ -23,6 +24,7 @@ i2c0: i2c@fff84000 { #address-cells = <1>; #size-cells = <0>; clocks = <&twi0_clk>; + clock-frequency = <400000>; 24c512@50 { compatible = "24c512"; |