Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / i2c / i2c-pnx.txt

diff --git a/kernel/Documentation/devicetree/bindings/i2c/i2c-pnx.txt b/kernel/Documentation/devicetree/bindings/i2c/i2c-pnx.txt
new file mode 100644 (file)
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+++ b/kernel/Documentation/devicetree/bindings/i2c/i2c-pnx.txt
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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>;
+       };