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Message-ID: <20250220232527.882888-2-dingwei@marvell.com>
Date: Thu, 20 Feb 2025 15:25:24 -0800
From: Wilson Ding <dingwei@...vell.com>
To: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>
CC: <andrew@...n.ch>, <gregory.clement@...tlin.com>,
<sebastian.hesselbarth@...il.com>, <robh@...nel.org>,
<krzk+dt@...nel.org>, <conor+dt@...nel.org>, <p.zabel@...gutronix.de>,
<salee@...vell.com>, <gakula@...vell.com>,
Wilson Ding <dingwei@...vell.com>
Subject: [PATCH v2 1/4] dt-bindings: reset: Add Armada8K reset controller
Add device-tree binding documentation for the Armada8K reset driver.
Signed-off-by: Wilson Ding <dingwei@...vell.com>
---
.../reset/marvell,armada8k-reset.yaml | 45 +++++++++++++++++++
1 file changed, 45 insertions(+)
create mode 100644 Documentation/devicetree/bindings/reset/marvell,armada8k-reset.yaml
diff --git a/Documentation/devicetree/bindings/reset/marvell,armada8k-reset.yaml b/Documentation/devicetree/bindings/reset/marvell,armada8k-reset.yaml
new file mode 100644
index 000000000000..b9f7f3c24d3c
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/marvell,armada8k-reset.yaml
@@ -0,0 +1,45 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2025 Wilson Ding <dingwei@...vell.com>
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/reset/marvell,armada8k-reset.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Marvell Armada8K reset controller
+
+maintainers:
+ - Wilson Ding <dingwei@...vell.com>
+
+description: The reset controller node must be a sub-node of the system
+ controller node on Armada7K/8K or CN913x SoCs.
+
+properties:
+ compatible:
+ const: marvell,armada8k-reset
+
+ offset:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description: Offset in the register map for the gpio registers (in bytes)
+
+ "#reset-cells":
+ const: 1
+
+required:
+ - compatible
+ - offset
+ - "#reset-cells"
+
+additionalProperties: false
+
+examples:
+ - |
+ syscon0: system-controller@...000 {
+ compatible = "syscon", "simple-mfd";
+ reg = <0x440000 0x2000>;
+
+ unit_swrst: reset-controller@268 {
+ compatible = "marvell,armada8k-reset";
+ offset = <0x268>;
+ #reset-cells = <1>;
+ };
+ };
--
2.43.0
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