linux/Documentation/devicetree/bindings/i2c/pnx.txt
Roland Stigge b41a216daf i2c: Add device tree support to i2c-pnx.c
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>
2012-04-22 11:59:47 +02:00

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* 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>;
};