关键词：rk3399;rockchip,px30-dfi; rockchip,rk3128-dfi; rockchip,rk3288-dfi; rockchip,rk3328-dfi; rockchip,rk3368-dfi; rockchip,rk3399-dfi;

rk3399 — DFI dts配置

1、属性值配置：

- compatible: 可以配置成以下值：
  - "rockchip,px30-dfi" - for PX30 SoCs.
  - "rockchip,rk3128-dfi" - for RK3128 SoCs.
  - "rockchip,rk3288-dfi" - for RK3288 SoCs.
  - "rockchip,rk3328-dfi" - for RK3328 SoCs.
  - "rockchip,rk3368-dfi" - for RK3368 SoCs.
  - "rockchip,rk3399-dfi" - for RK3399 SoCs.

RK3368 需要配置以下属性值:
- rockchip,grf: 配置grf;

RK3399 需要配置以下属性值：
- reg: 配置每个DFI寄存器的物理基地址，以及寄存器的空间大小；
- rockchip,pmu: 指向pmugrf;
- clocks: 配置DFI的时钟；
- clock-names : 配置DFI的时钟名称 "pclk_ddr_mon";

2、以rk3399为例：

Example:
	dfi: dfi@0xff630000 {
		reg = <0x00 0xff630000 0x00 0x4000>;
		compatible = "rockchip,rk3399-dfi";
		rockchip,pmu = <&pmugrf>;
		clocks = <&cru PCLK_DDR_MON>;
		clock-names = "pclk_ddr_mon";
		status = "disabled";
	};