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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/serial/fsl-lpuart.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale low power universal asynchronous receiver/transmitter (lpuart)
+
+maintainers:
+ - Fugang Duan <fugang.duan@nxp.com>
+
+allOf:
+ - $ref: "rs485.yaml"
+
+properties:
+ compatible:
+ oneOf:
+ - enum:
+ - fsl,vf610-lpuart
+ - fsl,ls1021a-lpuart
+ - fsl,ls1028a-lpuart
+ - fsl,imx7ulp-lpuart
+ - fsl,imx8qm-lpuart
+ - items:
+ - const: fsl,imx8qxp-lpuart
+ - const: fsl,imx7ulp-lpuart
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ items:
+ - description: ipg clock
+ - description: baud clock
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: ipg
+ - const: baud
+ minItems: 1
+ maxItems: 2
+
+ dmas:
+ items:
+ - description: DMA controller phandle and request line for RX
+ - description: DMA controller phandle and request line for TX
+
+ dma-names:
+ items:
+ - const: rx
+ - const: tx
+
+ rs485-rts-active-low: true
+ linux,rs485-enabled-at-boot-time: true
+
+required:
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - clock-names
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/vf610-clock.h>
+
+ serial@40027000 {
+ compatible = "fsl,vf610-lpuart";
+ reg = <0x40027000 0x1000>;
+ interrupts = <0 61 0x00>;
+ clocks = <&clks VF610_CLK_UART0>;
+ clock-names = "ipg";
+ dmas = <&edma0 0 2>, <&edma0 0 3>;
+ dma-names = "rx","tx";
+ };