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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id: http://devicetree.org/schemas/serial/serial-peripheral-props.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Common Properties for Serial-attached Devices
maintainers:
- Rob Herring <robh@kernel.org>
- Greg Kroah-Hartman <gregkh@linuxfoundation.org>
description:
Devices connected over serial/UART, expressed as children of a serial
controller, might need similar properties, e.g. for configuring the baud
rate.
properties:
max-speed:
$ref: /schemas/types.yaml#/definitions/uint32
description:
The maximum baud rate the device operates at.
This should only be present if the maximum is less than the slave
device can support. For example, a particular board has some
signal quality issue or the host processor can't support higher
baud rates.
current-speed:
$ref: /schemas/types.yaml#/definitions/uint32
description: |
The current baud rate the device operates at.
This should only be present in case a driver has no chance to know
the baud rate of the slave device.
Examples:
* device supports auto-baud
* the rate is setup by a bootloader and there is no way to reset
the device
* device baud rate is configured by its firmware but there is no
way to request the actual settings
additionalProperties: true
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