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dt-bindings: devfreq: event: convert Samsung Exynos NoCP to dtschema 

Convert Samsung Exynos NoC Probe bindings to DT schema format using
json-schema.

New bindings contain copied description from previous bindings document,
therefore the license is set as GPL-2.0-only.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20210820150353.161161-1-krzysztof.kozlowski@canonical.com
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Krzysztof Kozlowski 2021-08-20 17:03:50 +02:00 committed by Rob Herring
parent 1ee7943c33
commit 8c85bdafdd
2 changed files with 48 additions and 26 deletions
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26
Documentation/devicetree/bindings/devfreq/event/exynos-nocp.txt
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* Samsung Exynos NoC (Network on Chip) Probe device
The Samsung Exynos542x SoC has NoC (Network on Chip) Probe for NoC bus.
NoC provides the primitive values to get the performance data. The packets
that the Network on Chip (NoC) probes detects are transported over
the network infrastructure to observer units. You can configure probes to
capture packets with header or data on the data request response network,
or as traffic debug or statistic collectors. Exynos542x bus has multiple
NoC probes to provide bandwidth information about behavior of the SoC
that you can use while analyzing system performance.
Required properties:
- compatible: Should be "samsung,exynos5420-nocp"
- reg: physical base address of each NoC Probe and length of memory mapped region.
Optional properties:
- clock-names : the name of clock used by the NoC Probe, "nocp"
- clocks : phandles for clock specified in "clock-names" property
Example : NoC Probe nodes in Device Tree are listed below.
nocp_mem0_0: nocp@10ca1000 {
compatible = "samsung,exynos5420-nocp";
reg = <0x10CA1000 0x200>;
};

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Documentation/devicetree/bindings/devfreq/event/samsung,exynos-nocp.yaml Normal file
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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/devfreq/event/samsung,exynos-nocp.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Samsung Exynos NoC (Network on Chip) Probe
maintainers:
- Chanwoo Choi <cw00.choi@samsung.com>
- Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
description: |
The Samsung Exynos542x SoC has a NoC (Network on Chip) Probe for NoC bus.
NoC provides the primitive values to get the performance data. The packets
that the Network on Chip (NoC) probes detects are transported over the
network infrastructure to observer units. You can configure probes to capture
packets with header or data on the data request response network, or as
traffic debug or statistic collectors. Exynos542x bus has multiple NoC probes
to provide bandwidth information about behavior of the SoC that you can use
while analyzing system performance.
properties:
compatible:
const: samsung,exynos5420-nocp
clock-names:
items:
- const: nocp
clocks:
maxItems: 1
reg:
maxItems: 1
required:
- compatible
- reg
additionalProperties: false
examples:
- |
nocp_mem0_0: nocp@10ca1000 {
compatible = "samsung,exynos5420-nocp";
reg = <0x10ca1000 0x200>;
};