From f9e784dcb63f56157f7d12abdab584cc393515b1 Mon Sep 17 00:00:00 2001
From: Wilken Gottwalt <wilken.gottwalt@posteo.net>
Date: Sun, 14 Mar 2021 10:30:49 +0100
Subject: [PATCH] dt-bindings: hwlock: add sun6i_hwspinlock
Adds documentation on how to use the sun6i_hwspinlock driver for sun6i
compatible series SoCs.
Reviewed-by: Samuel Holland <samuel@sholland.org>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Signed-off-by: Wilken Gottwalt <wilken.gottwalt@posteo.net>
Link: https://lore.kernel.org/r/b7a1f5532e0ae474473858055fd9bbabff9e1449.1615713499.git.wilken.gottwalt@posteo.net
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---
.../allwinner,sun6i-a31-hwspinlock.yaml | 45 +++++++++++++++++++
1 file changed, 45 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml
diff --git a/Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml b/Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml
new file mode 100644
index 0000000000000..733c3d01e56c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwlock/allwinner,sun6i-a31-hwspinlock.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwlock/allwinner,sun6i-hwspinlock.yaml#
+$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:
+ - |
+ hwlock@1c18000 {
+ compatible = "allwinner,sun6i-a31-hwspinlock";
+ reg = <0x01c18000 0x1000>;
+ clocks = <&ccu CLK_BUS_SPINLOCK>;
+ resets = <&ccu RST_BUS_SPINLOCK>;
+ };
+...
--
GitLab