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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/tpm/tpm-common.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Trusted Platform Module common properties
+
+maintainers:
+ - Lukas Wunner <lukas@wunner.de>
+
+properties:
+ $nodename:
+ pattern: '^tpm(@[0-9a-f]+)?$'
+
+ interrupts:
+ description: indicates command completion
+ maxItems: 1
+
+ label:
+ description: human readable string describing the device, e.g. "tpm"
+
+ linux,sml-base:
+ description:
+ base address of reserved memory allocated for firmware event log
+ $ref: /schemas/types.yaml#/definitions/uint64
+
+ linux,sml-size:
+ description:
+ size of reserved memory allocated for firmware event log
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ memory-region:
+ description: reserved memory allocated for firmware event log
+ maxItems: 1
+
+ powered-while-suspended:
+ description:
+ present when the TPM is left powered on between suspend and resume
+ (makes the suspend/resume callbacks do nothing)
+ type: boolean
+
+ resets:
+ description: Reset controller to reset the TPM
+ maxItems: 1
+
+ reset-gpios:
+ description: Output GPIO pin to reset the TPM
+ maxItems: 1
+
+# must always have both linux,sml-base and linux,sml-size
+dependentRequired:
+ linux,sml-base: ['linux,sml-size']
+ linux,sml-size: ['linux,sml-base']
+
+# must only have either memory-region or linux,sml-base
+# as well as either resets or reset-gpios
+dependentSchemas:
+ memory-region:
+ properties:
+ linux,sml-base: false
+ linux,sml-base:
+ properties:
+ memory-region: false
+ resets:
+ properties:
+ reset-gpios: false
+ reset-gpios:
+ properties:
+ resets: false
+
+allOf:
+ - if:
+ properties:
+ compatible:
+ contains:
+ pattern: '^st,st33zp24'
+ then:
+ properties:
+ lpcpd-gpios:
+ description:
+ Output GPIO pin used for ST33ZP24 power management of D1/D2 state.
+ If set, power must be present when the platform is going into
+ sleep/hibernate mode.
+ maxItems: 1
+
+additionalProperties: true