1 # SPDX-License-Identifier: GPL-2.0-only OR BSD
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/ufs/ufs-com
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: Common properties for Universal Flash S
8
9 maintainers:
10 - Alim Akhtar <alim.akhtar@samsung.com>
11 - Avri Altman <avri.altman@wdc.com>
12
13 properties:
14 clocks: true
15
16 clock-names: true
17
18 freq-table-hz:
19 items:
20 items:
21 - description: Minimum frequency for g
22 - description: Maximum frequency for g
23 deprecated: true
24 description: |
25 Preferred is operating-points-v2.
26
27 Array of <min max> operating frequencies
28 as the clocks property. If either this p
29 not defined or a value in the array is "
30 frequency is set by the parent clock or
31
32 operating-points-v2:
33 description:
34 Preferred over freq-table-hz.
35 If present, each OPP must contain array
36 order for each clock. If clock frequenc
37 assumed that the frequency is set by the
38 clock source.
39
40 opp-table:
41 type: object
42
43 interrupts:
44 maxItems: 1
45
46 lanes-per-direction:
47 $ref: /schemas/types.yaml#/definitions/uin
48 enum: [1, 2]
49 default: 2
50 description:
51 Number of lanes available per direction.
52 number of lanes is used both directions
53
54 vdd-hba-supply:
55 description:
56 Phandle to UFS host controller supply re
57
58 vcc-supply:
59 description:
60 Phandle to VCC supply regulator node.
61
62 vccq-supply:
63 description:
64 Phandle to VCCQ supply regulator node.
65
66 vccq2-supply:
67 description:
68 Phandle to VCCQ2 supply regulator node.
69
70 vcc-supply-1p8:
71 type: boolean
72 description:
73 For embedded UFS devices, valid VCC rang
74 boolean property when set, specifies to
75 1.7-1.95V. Note for external UFS cards t
76 VCC range is always 2.7-3.6V.
77
78 vcc-max-microamp:
79 description:
80 Specifies max. load that can be drawn fr
81
82 vccq-max-microamp:
83 description:
84 Specifies max. load that can be drawn fr
85
86 vccq2-max-microamp:
87 description:
88 Specifies max. load that can be drawn fr
89
90 msi-parent: true
91
92 dependencies:
93 freq-table-hz: [ clocks ]
94 operating-points-v2: [ clocks, clock-names ]
95
96 required:
97 - interrupts
98
99 allOf:
100 - if:
101 required:
102 - freq-table-hz
103 then:
104 properties:
105 operating-points-v2: false
106 - if:
107 required:
108 - operating-points-v2
109 then:
110 properties:
111 freq-table-hz: false
112
113 additionalProperties: true
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.