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Merge up to 2.6.27-rc8
Merge of 2.6.x-xfs-melb:linux:32254b by kenmcd.

* Serial

Currently defined compatibles:
- fsl,cpm1-smc-uart
- fsl,cpm2-smc-uart
- fsl,cpm1-scc-uart
- fsl,cpm2-scc-uart
- fsl,qe-uart

Modem control lines connected to GPIO controllers are listed in the gpios
property as described in booting-without-of.txt, section IX.1 in the following
order:

CTS, RTS, DCD, DSR, DTR, and RI.

The gpios property is optional and can be left out when control lines are
not used.

Example:

	serial@11a00 {
		device_type = "serial";
		compatible = "fsl,mpc8272-scc-uart",
			     "fsl,cpm2-scc-uart";
		reg = <11a00 20 8000 100>;
		interrupts = <28 8>;
		interrupt-parent = <&PIC>;
		fsl,cpm-brg = <1>;
		fsl,cpm-command = <00800000>;
		gpios = <&gpio_c 15 0
			 &gpio_d 29 0>;
	};