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| author |   Marek Vasut <marex@denx.de> | 2012-07-09 18:22:53 +0200 |
|---|---|---|
| committer |   Wolfram Sang <w.sang@pengutronix.de> | 2012-07-13 10:33:42 +0200 |
| commit | cd4f2d4aa79ccbb2713f33f9c9f24ed21b5fc8fa (patch) | |
| tree | f18425262e5ab482c4b6b12dbbf5ca8759ad33b3 /Documentation/devicetree/bindings/i2c | |
| parent | i2c: i2c-bfin-twi: Move blackfin TWI register access Macro to head file. (diff) | |
| download | linux-dev-cd4f2d4aa79ccbb2713f33f9c9f24ed21b5fc8fa.tar.xz linux-dev-cd4f2d4aa79ccbb2713f33f9c9f24ed21b5fc8fa.zip | |
i2c: mxs: Set I2C timing registers for mxs-i2c
This patch configures the I2C bus timing registers according
to information passed via DT. Currently, 100kHz and 400kHz
modes are supported.
The TIMING2 register value is wrong in the documentation for
i.MX28! This was found and fixed by:
Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/i2c-mxs.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/i2c-mxs.txt b/Documentation/devicetree/bindings/i2c/i2c-mxs.txt index 1bfc02de1b0c..30ac3a0557f7 100644 --- a/Documentation/devicetree/bindings/i2c/i2c-mxs.txt +++ b/Documentation/devicetree/bindings/i2c/i2c-mxs.txt @@ -4,6 +4,8 @@ Required properties: - compatible: Should be "fsl,<chip>-i2c" - reg: Should contain registers location and length - interrupts: Should contain ERROR and DMA interrupts +- clock-frequency: Desired I2C bus clock frequency in Hz. + Only 100000Hz and 400000Hz modes are supported. Examples: @@ -13,4 +15,5 @@ i2c0: i2c@80058000 { compatible = "fsl,imx28-i2c"; reg = <0x80058000 2000>; interrupts = <111 68>; + clock-frequency = <100000>; }; |