| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/clock/ti,sci-clk.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: TI-SCI clock controller |
| 8 | |
| 9 | maintainers: |
| 10 | - Nishanth Menon <nm@ti.com> |
| 11 | |
| 12 | description: | |
| 13 | Some TI SoCs contain a system controller (like the Power Management Micro |
| 14 | Controller (PMMC) on Keystone 66AK2G SoC) that are responsible for controlling |
| 15 | the state of the various hardware modules present on the SoC. Communication |
| 16 | between the host processor running an OS and the system controller happens |
| 17 | through a protocol called TI System Control Interface (TI-SCI protocol). |
| 18 | |
| 19 | This clock controller node uses the TI SCI protocol to perform various clock |
| 20 | management of various hardware modules (devices) present on the SoC. This |
| 21 | node must be a child node of the associated TI-SCI system controller node. |
| 22 | |
| 23 | properties: |
| 24 | $nodename: |
| 25 | pattern: "^clock-controller$" |
| 26 | |
| 27 | compatible: |
| 28 | const: ti,k2g-sci-clk |
| 29 | |
| 30 | "#clock-cells": |
| 31 | const: 2 |
| 32 | description: |
| 33 | The two cells represent values that the TI-SCI controller defines. |
| 34 | |
| 35 | The first cell should contain the device ID. |
| 36 | |
| 37 | The second cell should contain the clock ID. |
| 38 | |
| 39 | Please see http://processors.wiki.ti.com/index.php/TISCI for |
| 40 | protocol documentation for the values to be used for different devices. |
| 41 | |
| 42 | additionalProperties: false |
| 43 | |
| 44 | examples: |
| 45 | - | |
| 46 | k3_clks: clock-controller { |
| 47 | compatible = "ti,k2g-sci-clk"; |
| 48 | #clock-cells = <2>; |
| 49 | }; |