1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/tpm/tpm-com 4 $id: http://devicetree.org/schemas/tpm/tpm-common.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Trusted Platform Module common properti 7 title: Trusted Platform Module common properties
8 8
9 maintainers: 9 maintainers:
10 - Lukas Wunner <lukas@wunner.de> 10 - Lukas Wunner <lukas@wunner.de>
11 11
12 properties: 12 properties:
13 $nodename: 13 $nodename:
14 pattern: '^tpm(@[0-9a-f]+)?$' 14 pattern: '^tpm(@[0-9a-f]+)?$'
15 15
16 interrupts: 16 interrupts:
17 description: indicates command completion 17 description: indicates command completion
18 maxItems: 1 18 maxItems: 1
19 19
20 label: 20 label:
21 description: human readable string describ 21 description: human readable string describing the device, e.g. "tpm"
22 22
23 linux,sml-base: 23 linux,sml-base:
24 description: 24 description:
25 base address of reserved memory allocate 25 base address of reserved memory allocated for firmware event log
26 $ref: /schemas/types.yaml#/definitions/uin 26 $ref: /schemas/types.yaml#/definitions/uint64
27 27
28 linux,sml-size: 28 linux,sml-size:
29 description: 29 description:
30 size of reserved memory allocated for fi 30 size of reserved memory allocated for firmware event log
31 $ref: /schemas/types.yaml#/definitions/uin 31 $ref: /schemas/types.yaml#/definitions/uint32
32 32
33 memory-region: 33 memory-region:
34 description: reserved memory allocated for 34 description: reserved memory allocated for firmware event log
35 maxItems: 1 35 maxItems: 1
36 36
37 powered-while-suspended: 37 powered-while-suspended:
38 description: 38 description:
39 present when the TPM is left powered on 39 present when the TPM is left powered on between suspend and resume
40 (makes the suspend/resume callbacks do n 40 (makes the suspend/resume callbacks do nothing)
41 type: boolean 41 type: boolean
42 42
43 resets: 43 resets:
44 description: Reset controller to reset the 44 description: Reset controller to reset the TPM
45 maxItems: 1 45 maxItems: 1
46 46
47 reset-gpios: 47 reset-gpios:
48 description: Output GPIO pin to reset the 48 description: Output GPIO pin to reset the TPM
49 maxItems: 1 49 maxItems: 1
50 50
51 # must always have both linux,sml-base and lin 51 # must always have both linux,sml-base and linux,sml-size
52 dependentRequired: 52 dependentRequired:
53 linux,sml-base: ['linux,sml-size'] 53 linux,sml-base: ['linux,sml-size']
54 linux,sml-size: ['linux,sml-base'] 54 linux,sml-size: ['linux,sml-base']
55 55
56 # must only have either memory-region or linux 56 # must only have either memory-region or linux,sml-base
57 # as well as either resets or reset-gpios 57 # as well as either resets or reset-gpios
58 dependentSchemas: 58 dependentSchemas:
59 memory-region: 59 memory-region:
60 properties: 60 properties:
61 linux,sml-base: false 61 linux,sml-base: false
62 linux,sml-base: 62 linux,sml-base:
63 properties: 63 properties:
64 memory-region: false 64 memory-region: false
65 resets: 65 resets:
66 properties: 66 properties:
67 reset-gpios: false 67 reset-gpios: false
68 reset-gpios: 68 reset-gpios:
69 properties: 69 properties:
70 resets: false 70 resets: false
71 71
72 allOf: 72 allOf:
73 - if: 73 - if:
74 properties: 74 properties:
75 compatible: 75 compatible:
76 contains: 76 contains:
77 pattern: '^st,st33zp24' 77 pattern: '^st,st33zp24'
78 then: 78 then:
79 properties: 79 properties:
80 lpcpd-gpios: 80 lpcpd-gpios:
81 description: 81 description:
82 Output GPIO pin used for ST33ZP24 82 Output GPIO pin used for ST33ZP24 power management of D1/D2 state.
83 If set, power must be present when 83 If set, power must be present when the platform is going into
84 sleep/hibernate mode. 84 sleep/hibernate mode.
85 maxItems: 1 85 maxItems: 1
86 86
87 additionalProperties: true 87 additionalProperties: true
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