linux-kernel - [PATCH 1/4] dt-bindings: brcmstb-hwspinlock: support for hwspinlock

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Message-Id: <20250711154221.928164-3-kamal.dasu@broadcom.com>
Date: Fri, 11 Jul 2025 11:42:18 -0400
From: Kamal Dasu <kamal.dasu@...adcom.com>
To: andersson@...nel.org,
	baolin.wang@...ux.alibaba.com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	florian.fainelli@...adcom.com,
	ulf.hansson@...aro.org,
	adrian.hunter@...el.com
Cc: bcm-kernel-feedback-list@...adcom.com,
	kamal.dasu@...adcom.com,
	linux-remoteproc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	linux-mmc@...r.kernel.org,
	Kamal Dasu <kdasu@...adcom.com>
Subject: [PATCH 1/4] dt-bindings: brcmstb-hwspinlock: support for hwspinlock

From: Kamal Dasu <kdasu@...adcom.com>

Adding brcmstb_hwspinlock bindings.

Signed-off-by: Kamal Dasu <kamal.dasu@...adcom.com>
---
 .../hwlock/brcm,brcmstb-hwspinlock.yaml       | 36 +++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwlock/brcm,brcmstb-hwspinlock.yaml

diff --git a/Documentation/devicetree/bindings/hwlock/brcm,brcmstb-hwspinlock.yaml b/Documentation/devicetree/bindings/hwlock/brcm,brcmstb-hwspinlock.yaml
new file mode 100644
index 000000000000..b49ead166b1e
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwlock/brcm,brcmstb-hwspinlock.yaml
@@ -0,0 +1,36 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hwlock/brcm,brcmstb-hwspinlock.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Broadcom settop Hardware Spinlock
+
+maintainers:
+  - Kamal Dasu <kamal.dasu@...adcom.com>
+
+properties:
+  "#hwlock-cells":
+    const: 1
+
+  compatible:
+    const: brcm,brcmstb-hwspinlock
+
+  reg:
+    maxItems: 1
+
+required:
+  - "#hwlock-cells"
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    hwspinlock@...4038 {
+        compatible = "brcm,brcmstb-hwspinlock";
+        #hwlock-cells = <1>;
+        reg = <0x8404038 0x40>;
+    };
+
-- 
2.34.1