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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

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%YAML 1.2

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---

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$id: http://devicetree.org/schemas/hwlock/allwinner,sun6i-a31-hwspinlock.yaml#

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$schema: http://devicetree.org/meta-schemas/core.yaml#

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title: SUN6I hardware spinlock driver for Allwinner sun6i compatible SoCs

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maintainers:

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  - Wilken Gottwalt <wilken.gottwalt@posteo.net>

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description:

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  The hardware unit provides semaphores between the ARM cores and the embedded

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  companion core on the SoC.

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properties:

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  compatible:

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    const: allwinner,sun6i-a31-hwspinlock

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  reg:

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    maxItems: 1

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  clocks:

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    maxItems: 1

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  resets:

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    maxItems: 1

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  '#hwlock-cells':

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    const: 1

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required:

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  - compatible

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  - reg

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  - clocks

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  - resets

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  - "#hwlock-cells"

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additionalProperties: false

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examples:

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  - |

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    #include <dt-bindings/clock/sun8i-a23-a33-ccu.h>

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    #include <dt-bindings/reset/sun8i-a23-a33-ccu.h>

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    hwlock@1c18000 {

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        compatible = "allwinner,sun6i-a31-hwspinlock";

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        reg = <0x01c18000 0x1000>;

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        clocks = <&ccu CLK_BUS_SPINLOCK>;

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        resets = <&ccu RST_BUS_SPINLOCK>;

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        #hwlock-cells = <1>;

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    };

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...

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