bindings/phy/rockchip-emmc-phy.txt

2 -----------------------
5  - compatible: rockchip,rk3399-emmc-phy
6  - #phy-cells: must be 0
7  - reg: PHY register address offset and length in "general
11  - clock-names: Should contain "emmcclk".  Although this is listed as optional
14 		See ../clock/clock-bindings.txt for details.
15  - clocks: Should have a phandle to the card clock exported by the SDHCI driver.
16  - drive-impedance-ohm: Specifies the drive impedance in Ohm.
23 grf: syscon@ff770000 {
24 	compatible = "rockchip,rk3399-grf", "syscon", "simple-mfd";
25 	#address-cells = <1>;
26 	#size-cells = <1>;
31 		compatible = "rockchip,rk3399-emmc-phy";
34 		clock-names = "emmcclk";
35 		drive-impedance-ohm = <50>;
36 		#phy-cells = <0>;