0001 # SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/hwlock/allwinner,sun6i-a31-hwspinlock.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: SUN6I hardware spinlock driver for Allwinner sun6i compatible SoCs
0008
0009 maintainers:
0010 - Wilken Gottwalt <wilken.gottwalt@posteo.net>
0011
0012 description:
0013 The hardware unit provides semaphores between the ARM cores and the embedded
0014 companion core on the SoC.
0015
0016 properties:
0017 compatible:
0018 const: allwinner,sun6i-a31-hwspinlock
0019
0020 reg:
0021 maxItems: 1
0022
0023 clocks:
0024 maxItems: 1
0025
0026 resets:
0027 maxItems: 1
0028
0029 required:
0030 - compatible
0031 - reg
0032 - clocks
0033 - resets
0034
0035 additionalProperties: false
0036
0037 examples:
0038 - |
0039 #include <dt-bindings/clock/sun8i-a23-a33-ccu.h>
0040 #include <dt-bindings/reset/sun8i-a23-a33-ccu.h>
0041
0042 hwlock@1c18000 {
0043 compatible = "allwinner,sun6i-a31-hwspinlock";
0044 reg = <0x01c18000 0x1000>;
0045 clocks = <&ccu CLK_BUS_SPINLOCK>;
0046 resets = <&ccu RST_BUS_SPINLOCK>;
0047 };
0048 ...
