1* Universal Flash Storage (UFS) Host Controller
2
3UFSHC nodes are defined to describe on-chip UFS host controllers.
4Each UFS controller instance should have its own node.
5
6Required properties:
7- compatible		: must contain "jedec,ufs-1.1", may also list one or more
8					  of the following:
9					  "qcom,msm8994-ufshc"
10					  "qcom,msm8996-ufshc"
11					  "qcom,ufshc"
12- interrupts        : <interrupt mapping for UFS host controller IRQ>
13- reg               : <registers mapping>
14
15Optional properties:
16- phys                  : phandle to UFS PHY node
17- phy-names             : the string "ufsphy" when is found in a node, along
18                          with "phys" attribute, provides phandle to UFS PHY node
19- vdd-hba-supply        : phandle to UFS host controller supply regulator node
20- vcc-supply            : phandle to VCC supply regulator node
21- vccq-supply           : phandle to VCCQ supply regulator node
22- vccq2-supply          : phandle to VCCQ2 supply regulator node
23- vcc-supply-1p8        : For embedded UFS devices, valid VCC range is 1.7-1.95V
24                          or 2.7-3.6V. This boolean property when set, specifies
25			  to use low voltage range of 1.7-1.95V. Note for external
26			  UFS cards this property is invalid and valid VCC range is
27			  always 2.7-3.6V.
28- vcc-max-microamp      : specifies max. load that can be drawn from vcc supply
29- vccq-max-microamp     : specifies max. load that can be drawn from vccq supply
30- vccq2-max-microamp    : specifies max. load that can be drawn from vccq2 supply
31- <name>-fixed-regulator : boolean property specifying that <name>-supply is a fixed regulator
32
33- clocks                : List of phandle and clock specifier pairs
34- clock-names           : List of clock input name strings sorted in the same
35                          order as the clocks property.
36- freq-table-hz		: Array of <min max> operating frequencies stored in the same
37                          order as the clocks property. If this property is not
38			  defined or a value in the array is "0" then it is assumed
39			  that the frequency is set by the parent clock or a
40			  fixed rate clock source.
41
42Note: If above properties are not defined it can be assumed that the supply
43regulators or clocks are always on.
44
45Example:
46	ufshc@0xfc598000 {
47		compatible = "jedec,ufs-1.1";
48		reg = <0xfc598000 0x800>;
49		interrupts = <0 28 0>;
50
51		vdd-hba-supply = <&xxx_reg0>;
52		vdd-hba-fixed-regulator;
53		vcc-supply = <&xxx_reg1>;
54		vcc-supply-1p8;
55		vccq-supply = <&xxx_reg2>;
56		vccq2-supply = <&xxx_reg3>;
57		vcc-max-microamp = 500000;
58		vccq-max-microamp = 200000;
59		vccq2-max-microamp = 200000;
60
61		clocks = <&core 0>, <&ref 0>, <&iface 0>;
62		clock-names = "core_clk", "ref_clk", "iface_clk";
63		freq-table-hz = <100000000 200000000>, <0 0>, <0 0>;
64		phys = <&ufsphy1>;
65		phy-names = "ufsphy";
66	};
67