36 lines
811 B
YAML
36 lines
811 B
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/rtc/apple,smc-rtc.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Apple SMC RTC
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description:
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Apple Silicon Macs (M1, etc.) have an RTC that is part of the PMU IC,
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but most of the PMU functionality is abstracted out by the SMC.
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An additional RTC offset stored inside NVMEM is required to compute
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the current date/time.
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maintainers:
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- Sven Peter <sven@kernel.org>
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properties:
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compatible:
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const: apple,smc-rtc
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nvmem-cells:
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items:
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- description: 48bit RTC offset, specified in 32768 (2^15) Hz clock ticks
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nvmem-cell-names:
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items:
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- const: rtc_offset
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required:
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- compatible
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- nvmem-cells
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- nvmem-cell-names
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additionalProperties: false
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