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