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-rw-r--r--Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml48
1 files changed, 48 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml b/Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwlock/allwinner,sun6i-a31-hwspinlock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SUN6I hardware spinlock driver for Allwinner sun6i compatible SoCs
+
+maintainers:
+ - Wilken Gottwalt <wilken.gottwalt@posteo.net>
+
+description:
+ The hardware unit provides semaphores between the ARM cores and the embedded
+ companion core on the SoC.
+
+properties:
+ compatible:
+ const: allwinner,sun6i-a31-hwspinlock
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+ resets:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+ - resets
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/sun8i-a23-a33-ccu.h>
+ #include <dt-bindings/reset/sun8i-a23-a33-ccu.h>
+
+ hwlock@1c18000 {
+ compatible = "allwinner,sun6i-a31-hwspinlock";
+ reg = <0x01c18000 0x1000>;
+ clocks = <&ccu CLK_BUS_SPINLOCK>;
+ resets = <&ccu RST_BUS_SPINLOCK>;
+ };
+...