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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2# Copyright 2019 Unisoc Inc.3%YAML 1.24---5$id: http://devicetree.org/schemas/serial/sprd-uart.yaml#6$schema: http://devicetree.org/meta-schemas/core.yaml#7 8title: Spreadtrum serial UART9 10maintainers:11 - Orson Zhai <orsonzhai@gmail.com>12 - Baolin Wang <baolin.wang7@gmail.com>13 - Chunyan Zhang <zhang.lyra@gmail.com>14 15properties:16 compatible:17 oneOf:18 - items:19 - enum:20 - sprd,sc9860-uart21 - sprd,sc9863a-uart22 - sprd,ums512-uart23 - sprd,ums9620-uart24 - const: sprd,sc9836-uart25 - const: sprd,sc9836-uart26 27 reg:28 maxItems: 129 30 interrupts:31 maxItems: 132 33 clocks:34 minItems: 135 maxItems: 336 37 clock-names:38 description: |39 "enable" for UART module enable clock, "uart" for UART clock, "source"40 for UART source (parent) clock.41 items:42 - const: enable43 - const: uart44 - const: source45 46 dmas:47 minItems: 148 maxItems: 249 50 dma-names:51 minItems: 152 items:53 - const: rx54 - const: tx55 56required:57 - compatible58 - reg59 - interrupts60 61additionalProperties: false62 63examples:64 - |65 #include <dt-bindings/interrupt-controller/arm-gic.h>66 serial@0 {67 compatible = "sprd,sc9860-uart", "sprd,sc9836-uart";68 reg = <0x0 0x100>;69 interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;70 dma-names = "rx", "tx";71 dmas = <&ap_dma 19>, <&ap_dma 20>;72 clock-names = "enable", "uart", "source";73 clocks = <&clk_ap_apb_gates 9>, <&clk_uart0>, <&ext_26m>;74 };75 76...77