| # 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 |
