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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