From a092de11bb4a96ac43ede0352e09bdf7e06280e8 Mon Sep 17 00:00:00 2001 From: Roland Stigge Date: Fri, 20 Apr 2012 15:34:09 +0200 Subject: 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 Signed-off-by: Wolfram Sang --- Documentation/devicetree/bindings/i2c/pnx.txt | 36 +++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 Documentation/devicetree/bindings/i2c/pnx.txt (limited to 'Documentation/devicetree/bindings/i2c') 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>; + }; -- cgit v1.2.3