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     1 # SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/hwlock/allwinner,sun6i-a31-hwspinlock.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: SUN6I hardware spinlock driver for Allwinner sun6i compatible SoCs
    8 
    9 maintainers:
   10   - Wilken Gottwalt <wilken.gottwalt@posteo.net>
   11 
   12 description:
   13   The hardware unit provides semaphores between the ARM cores and the embedded
   14   companion core on the SoC.
   15 
   16 properties:
   17   compatible:
   18     const: allwinner,sun6i-a31-hwspinlock
   19 
   20   reg:
   21     maxItems: 1
   22 
   23   clocks:
   24     maxItems: 1
   25 
   26   resets:
   27     maxItems: 1
   28 
   29 required:
   30   - compatible
   31   - reg
   32   - clocks
   33   - resets
   34 
   35 additionalProperties: false
   36 
   37 examples:
   38   - |
   39     #include <dt-bindings/clock/sun8i-a23-a33-ccu.h>
   40     #include <dt-bindings/reset/sun8i-a23-a33-ccu.h>
   41 
   42     hwlock@1c18000 {
   43         compatible = "allwinner,sun6i-a31-hwspinlock";
   44         reg = <0x01c18000 0x1000>;
   45         clocks = <&ccu CLK_BUS_SPINLOCK>;
   46         resets = <&ccu RST_BUS_SPINLOCK>;
   47     };
   48 ...
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