1 # SPDX-License-Identifier: (GPL-2.0-only OR BS
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/tpm/tpm-com
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: Trusted Platform Module common properti
8
9 maintainers:
10 - Lukas Wunner <lukas@wunner.de>
11
12 properties:
13 $nodename:
14 pattern: '^tpm(@[0-9a-f]+)?$'
15
16 interrupts:
17 description: indicates command completion
18 maxItems: 1
19
20 label:
21 description: human readable string describ
22
23 linux,sml-base:
24 description:
25 base address of reserved memory allocate
26 $ref: /schemas/types.yaml#/definitions/uin
27
28 linux,sml-size:
29 description:
30 size of reserved memory allocated for fi
31 $ref: /schemas/types.yaml#/definitions/uin
32
33 memory-region:
34 description: reserved memory allocated for
35 maxItems: 1
36
37 powered-while-suspended:
38 description:
39 present when the TPM is left powered on
40 (makes the suspend/resume callbacks do n
41 type: boolean
42
43 resets:
44 description: Reset controller to reset the
45 maxItems: 1
46
47 reset-gpios:
48 description: Output GPIO pin to reset the
49 maxItems: 1
50
51 # must always have both linux,sml-base and lin
52 dependentRequired:
53 linux,sml-base: ['linux,sml-size']
54 linux,sml-size: ['linux,sml-base']
55
56 # must only have either memory-region or linux
57 # as well as either resets or reset-gpios
58 dependentSchemas:
59 memory-region:
60 properties:
61 linux,sml-base: false
62 linux,sml-base:
63 properties:
64 memory-region: false
65 resets:
66 properties:
67 reset-gpios: false
68 reset-gpios:
69 properties:
70 resets: false
71
72 allOf:
73 - if:
74 properties:
75 compatible:
76 contains:
77 pattern: '^st,st33zp24'
78 then:
79 properties:
80 lpcpd-gpios:
81 description:
82 Output GPIO pin used for ST33ZP24
83 If set, power must be present when
84 sleep/hibernate mode.
85 maxItems: 1
86
87 additionalProperties: true
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