1. 根目录:
2. Documentation
3. devicetree
4. bindings
5. serial
6. sprd-uart.txt

* Spreadtrum serial UART

Required properties:
- compatible: must be "sprd,sc9836-uart"
- reg: offset and length of the register set for the device
- interrupts: exactly one interrupt specifier
- clocks: phandles to input clocks.