xref: /linux/Documentation/devicetree/bindings/serial/fsl-lpuart.yaml (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0) 
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/serial/fsl-lpuart.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale low power universal asynchronous receiver/transmitter (lpuart)
8
9maintainers:
10  - Fugang Duan <fugang.duan@nxp.com>
11
12allOf:
13  - $ref: rs485.yaml#
14  - $ref: serial.yaml#
15
16properties:
17  compatible:
18    oneOf:
19      - enum:
20          - fsl,vf610-lpuart
21          - fsl,ls1021a-lpuart
22          - fsl,ls1028a-lpuart
23          - fsl,imx7ulp-lpuart
24          - fsl,imx8qxp-lpuart
25          - fsl,imxrt1050-lpuart
26      - items:
27          - enum:
28              - fsl,imx8ulp-lpuart
29          - const: fsl,imx7ulp-lpuart
30      - items:
31          - enum:
32              - fsl,imx93-lpuart
33              - fsl,imx95-lpuart
34          - const: fsl,imx8ulp-lpuart
35          - const: fsl,imx7ulp-lpuart
36      - items:
37          - enum:
38              - fsl,imx8qm-lpuart
39              - fsl,imx8dxl-lpuart
40          - const: fsl,imx8qxp-lpuart
41      - items:
42          - const: fsl,imxrt1050-lpuart
43          - const: fsl,imxrt1170-lpuart
44
45  reg:
46    maxItems: 1
47
48  interrupts:
49    maxItems: 1
50
51  clocks:
52    items:
53      - description: ipg clock
54      - description: baud clock
55    minItems: 1
56
57  clock-names:
58    items:
59      - const: ipg
60      - const: baud
61    minItems: 1
62
63  dmas:
64    items:
65      - description: DMA controller phandle and request line for RX
66      - description: DMA controller phandle and request line for TX
67
68  dma-names:
69    items:
70      - const: rx
71      - const: tx
72
73  power-domains:
74    maxItems: 1
75
76required:
77  - compatible
78  - reg
79  - interrupts
80  - clocks
81  - clock-names
82
83unevaluatedProperties: false
84
85examples:
86  - |
87    #include <dt-bindings/clock/vf610-clock.h>
88
89    serial@40027000 {
90        compatible = "fsl,vf610-lpuart";
91        reg = <0x40027000 0x1000>;
92        interrupts = <0 61 0x00>;
93        clocks = <&clks VF610_CLK_UART0>;
94        clock-names = "ipg";
95        dmas = <&edma0 0 2>, <&edma0 0 3>;
96        dma-names = "rx","tx";
97    };
98