Documentation/devicetree/bindings/serial/fsl-lpuart.yaml

   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
   7 title: Freescale low power universal asynchronous receiver/transmitter (lpuart)
   8
   9 maintainers:
  10   - Fugang Duan <fugang.duan@nxp.com>
  11
  12 allOf:
  13   - $ref: "rs485.yaml"
  14
  15 properties:
  16   compatible:
  17     oneOf:
  18       - enum:
  19           - fsl,vf610-lpuart
  20           - fsl,ls1021a-lpuart
  21           - fsl,ls1028a-lpuart
  22           - fsl,imx7ulp-lpuart
  23           - fsl,imx8qxp-lpuart
  24           - fsl,imxrt1050-lpuart
  25       - items:
  26           - enum:
  27               - fsl,imx93-lpuart
  28               - fsl,imx8ulp-lpuart
  29           - const: fsl,imx7ulp-lpuart
  30       - items:
  31           - enum:
  32               - fsl,imx8qm-lpuart
  33               - fsl,imx8dxl-lpuart
  34           - const: fsl,imx8qxp-lpuart
  35
  36   reg:
  37     maxItems: 1
  38
  39   interrupts:
  40     maxItems: 1
  41
  42   clocks:
  43     items:
  44       - description: ipg clock
  45       - description: baud clock
  46     minItems: 1
  47
  48   clock-names:
  49     items:
  50       - const: ipg
  51       - const: baud
  52     minItems: 1
  53
  54   dmas:
  55     items:
  56       - description: DMA controller phandle and request line for RX
  57       - description: DMA controller phandle and request line for TX
  58
  59   dma-names:
  60     items:
  61       - const: rx
  62       - const: tx
  63
  64   rs485-rts-active-low: true
  65   linux,rs485-enabled-at-boot-time: true
  66
  67 required:
  68   - compatible
  69   - reg
  70   - interrupts
  71   - clocks
  72   - clock-names
  73
  74 unevaluatedProperties: false
  75
  76 examples:
  77   - |
  78     #include <dt-bindings/clock/vf610-clock.h>
  79
  80     serial@40027000 {
  81         compatible = "fsl,vf610-lpuart";
  82         reg = <0x40027000 0x1000>;
  83         interrupts = <0 61 0x00>;
  84         clocks = <&clks VF610_CLK_UART0>;
  85         clock-names = "ipg";
  86         dmas = <&edma0 0 2>, <&edma0 0 3>;
  87         dma-names = "rx","tx";
  88     };