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     1 # SPDX-License-Identifier: GPL-2.0-only
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/timer/snps,dw-apb-timer.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Synopsys DesignWare APB Timer
    8 
    9 maintainers:
   10   - Daniel Lezcano <daniel.lezcano@linaro.org>
   11 
   12 properties:
   13   compatible:
   14     oneOf:
   15       - const: snps,dw-apb-timer
   16       - enum:
   17           - snps,dw-apb-timer-sp
   18           - snps,dw-apb-timer-osc
   19         deprecated: true
   20 
   21   reg:
   22     maxItems: 1
   23 
   24   interrupts:
   25     maxItems: 1
   26 
   27   resets:
   28     maxItems: 1
   29 
   30   clocks:
   31     minItems: 1
   32     items:
   33       - description: Timer ticks reference clock source
   34       - description: APB interface clock source
   35 
   36   clock-names:
   37     minItems: 1
   38     items:
   39       - const: timer
   40       - const: pclk
   41 
   42   clock-frequency: true
   43 
   44 additionalProperties: false
   45 
   46 required:
   47   - compatible
   48   - reg
   49   - interrupts
   50 
   51 oneOf:
   52   - required:
   53       - clocks
   54       - clock-names
   55   - required:
   56       - clock-frequency
   57   - required:
   58       - clock-freq
   59 
   60 examples:
   61   - |
   62     timer@ffe00000 {
   63       compatible = "snps,dw-apb-timer";
   64       interrupts = <0 170 4>;
   65       reg = <0xffe00000 0x1000>;
   66       clocks = <&timer_clk>, <&timer_pclk>;
   67       clock-names = "timer", "pclk";
   68     };
   69   - |
   70     timer@ffe00000 {
   71       compatible = "snps,dw-apb-timer";
   72       interrupts = <0 170 4>;
   73       reg = <0xffe00000 0x1000>;
   74       clocks = <&timer_clk>;
   75       clock-names = "timer";
   76     };
   77   - |
   78     timer@ffe00000 {
   79       compatible = "snps,dw-apb-timer";
   80       interrupts = <0 170 4>;
   81       reg = <0xffe00000 0x1000>;
   82       clock-frequency = <25000000>;
   83     };
   84 ...
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