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| author | Roland Stigge <stigge@antcom.de> | 2012-04-20 17:34:09 +0400 |
|---|---|---|
| committer | Wolfram Sang <w.sang@pengutronix.de> | 2012-05-12 16:28:14 +0400 |
| commit | a092de11bb4a96ac43ede0352e09bdf7e06280e8 (patch) | |
| tree | d00b69bb5214e6287005c28c5f9f7df51e8a0d3b /Documentation/devicetree/bindings/i2c | |
| parent | 973c5ed45dbdf8fd90e300826507b5e6814916af (diff) | |
| download | linux-a092de11bb4a96ac43ede0352e09bdf7e06280e8.tar.xz | |
i2c: pnx: add device tree support
This patch adds device tree support to the pnx-i2c driver by using platform
resources for memory region and irq and removing dependency on mach includes.
The following platforms are affected:
* PNX
* LPC31xx (WIP)
* LPC32xx
The patch is based on a patch by Jon Smirl, working on lpc31xx integration
Signed-off-by: Roland Stigge <stigge@antcom.de>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Diffstat (limited to 'Documentation/devicetree/bindings/i2c')
| -rw-r--r-- | Documentation/devicetree/bindings/i2c/pnx.txt | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/i2c/pnx.txt b/Documentation/devicetree/bindings/i2c/pnx.txt new file mode 100644 index 000000000000..fe98ada33ee4 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/pnx.txt @@ -0,0 +1,36 @@ +* NXP PNX I2C Controller + +Required properties: + + - reg: Offset and length of the register set for the device + - compatible: should be "nxp,pnx-i2c" + - interrupts: configure one interrupt line + - #address-cells: always 1 (for i2c addresses) + - #size-cells: always 0 + - interrupt-parent: the phandle for the interrupt controller that + services interrupts for this device. + +Optional properties: + + - clock-frequency: desired I2C bus clock frequency in Hz, Default: 100000 Hz + +Examples: + + i2c1: i2c@400a0000 { + compatible = "nxp,pnx-i2c"; + reg = <0x400a0000 0x100>; + interrupt-parent = <&mic>; + interrupts = <51 0>; + #address-cells = <1>; + #size-cells = <0>; + }; + + i2c2: i2c@400a8000 { + compatible = "nxp,pnx-i2c"; + reg = <0x400a8000 0x100>; + interrupt-parent = <&mic>; + interrupts = <50 0>; + #address-cells = <1>; + #size-cells = <0>; + clock-frequency = <100000>; + }; |