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/timestamp/h 4 $id: http://devicetree.org/schemas/timestamp/hardware-timestamps-common.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Hardware timestamp providers 7 title: Hardware timestamp providers
8 8
9 maintainers: 9 maintainers:
10 - Dipen Patel <dipenp@nvidia.com> 10 - Dipen Patel <dipenp@nvidia.com>
11 11
12 description: 12 description:
13 Some devices/SoCs have hardware timestamp en 13 Some devices/SoCs have hardware timestamp engines (HTE) which can use
14 hardware means to timestamp entity in realti 14 hardware means to timestamp entity in realtime. The entity could be anything
15 from GPIOs, IRQs, Bus and so on. The hardwar 15 from GPIOs, IRQs, Bus and so on. The hardware timestamp engine present
16 itself as a provider with the bindings descr 16 itself as a provider with the bindings described in this document.
17 17
18 properties: 18 properties:
19 $nodename: 19 $nodename:
20 pattern: "^timestamp(@.*|-([0-9]|[1-9][0-9 20 pattern: "^timestamp(@.*|-([0-9]|[1-9][0-9]+))?$"
21 21
22 "#timestamp-cells": 22 "#timestamp-cells":
23 description: 23 description:
24 Number of cells in a HTE specifier. 24 Number of cells in a HTE specifier.
25 25
26 required: 26 required:
27 - "#timestamp-cells" 27 - "#timestamp-cells"
28 28
29 additionalProperties: true 29 additionalProperties: true
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.