Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml

   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   '#hwlock-cells':
  30     const: 1
  31
  32 required:
  33   - compatible
  34   - reg
  35   - clocks
  36   - resets
  37   - "#hwlock-cells"
  38
  39 additionalProperties: false
  40
  41 examples:
  42   - |
  43     #include <dt-bindings/clock/sun8i-a23-a33-ccu.h>
  44     #include <dt-bindings/reset/sun8i-a23-a33-ccu.h>
  45
  46     hwlock@1c18000 {
  47         compatible = "allwinner,sun6i-a31-hwspinlock";
  48         reg = <0x01c18000 0x1000>;
  49         clocks = <&ccu CLK_BUS_SPINLOCK>;
  50         resets = <&ccu RST_BUS_SPINLOCK>;
  51         #hwlock-cells = <1>;
  52     };
  53 ...