1NVIDIA Tegra20/Tegra30 high speed (DMA based) UART controller driver.
2
3Required properties:
4- compatible : should be "nvidia,tegra30-hsuart", "nvidia,tegra20-hsuart".
5- reg: Should contain UART controller registers location and length.
6- interrupts: Should contain UART controller interrupts.
7- clocks: Must contain one entry, for the module clock.
8  See ../clocks/clock-bindings.txt for details.
9- resets : Must contain an entry for each entry in reset-names.
10  See ../reset/reset.txt for details.
11- reset-names : Must include the following entries:
12  - serial
13- dmas : Must contain an entry for each entry in clock-names.
14  See ../dma/dma.txt for details.
15- dma-names : Must include the following entries:
16  - rx
17  - tx
18
19Optional properties:
20- nvidia,enable-modem-interrupt: Enable modem interrupts. Should be enable
21		only if all 8 lines of UART controller are pinmuxed.
22
23Example:
24
25serial@70006000 {
26	compatible = "nvidia,tegra30-hsuart", "nvidia,tegra20-hsuart";
27	reg = <0x70006000 0x40>;
28	reg-shift = <2>;
29	interrupts = <0 36 0x04>;
30	nvidia,enable-modem-interrupt;
31	clocks = <&tegra_car 6>;
32	resets = <&tegra_car 6>;
33	reset-names = "serial";
34	dmas = <&apbdma 8>, <&apbdma 8>;
35	dma-names = "rx", "tx";
36	status = "disabled";
37};
38