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dt-bindings: serial: qcom,msm-uart: Convert to DT schema

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Convert the Qualcomm MSM SoC UART (non-DMA) bindings to DT schema.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20221201133036.45288-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Krzysztof Kozlowski 2022-12-01 14:30:36 +01:00 committed by Greg Kroah-Hartman
parent 8573b2ebce
commit 9676ab9b07
2 changed files with 56 additions and 25 deletions
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25
Documentation/devicetree/bindings/serial/qcom,msm-uart.txt
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* MSM Serial UART
The MSM serial UART hardware is designed for low-speed use cases where a
dma-engine isn't needed. From a software perspective it's mostly compatible
with the MSM serial UARTDM except that it only supports reading and writing one
character at a time.
Required properties:
- compatible: Should contain "qcom,msm-uart"
- reg: Should contain UART register location and length.
- interrupts: Should contain UART interrupt.
- clocks: Should contain the core clock.
- clock-names: Should be "core".
Example:
A uart device at 0xa9c00000 with interrupt 11.
serial@a9c00000 {
compatible = "qcom,msm-uart";
reg = <0xa9c00000 0x1000>;
interrupts = <11>;
clocks = <&uart_cxc>;
clock-names = "core";
};

56
Documentation/devicetree/bindings/serial/qcom,msm-uart.yaml Normal file
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# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/serial/qcom,msm-uart.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Qualcomm MSM SoC Serial UART
maintainers:
- Bjorn Andersson <andersson@kernel.org>
- Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
description:
The MSM serial UART hardware is designed for low-speed use cases where a
dma-engine isn't needed. From a software perspective it's mostly compatible
with the MSM serial UARTDM except that it only supports reading and writing
one character at a time.
properties:
compatible:
const: qcom,msm-uart
clocks:
maxItems: 1
clock-names:
items:
- const: core
interrupts:
maxItems: 1
reg:
maxItems: 1
required:
- compatible
- clock-names
- clocks
- interrupts
- reg
unevaluatedProperties: false
allOf:
- $ref: /schemas/serial/serial.yaml#
examples:
- |
serial@a9c00000 {
compatible = "qcom,msm-uart";
reg = <0xa9c00000 0x1000>;
interrupts = <11>;
clocks = <&uart_cxc>;
clock-names = "core";
};