linux-kernel - [PATCH v2 5/6] dt-bindings: hypervisor: Add dt-bindings for VMBus

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Message-Id: <1675188609-20913-6-git-send-email-ssengar@linux.microsoft.com>
Date:   Tue, 31 Jan 2023 10:10:08 -0800
From:   Saurabh Sengar <ssengar@...ux.microsoft.com>
To:     robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
        kys@...rosoft.com, haiyangz@...rosoft.com, wei.liu@...nel.org,
        decui@...rosoft.com, daniel.lezcano@...aro.org, tglx@...utronix.de,
        virtualization@...ts.linux-foundation.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hyperv@...r.kernel.org, mikelley@...rosoft.com,
        ssengar@...rosoft.com
Subject: [PATCH v2 5/6] dt-bindings: hypervisor: Add dt-bindings for VMBus

Add dt-bindings for Hyper-V VMBus

Signed-off-by: Saurabh Sengar <ssengar@...ux.microsoft.com>
---
 .../bindings/hypervisor/msft,vmbus.yaml       | 50 +++++++++++++++++++
 .../devicetree/bindings/vendor-prefixes.yaml  |  2 +
 MAINTAINERS                                   |  1 +
 3 files changed, 53 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hypervisor/msft,vmbus.yaml

diff --git a/Documentation/devicetree/bindings/hypervisor/msft,vmbus.yaml b/Documentation/devicetree/bindings/hypervisor/msft,vmbus.yaml
new file mode 100644
index 000000000000..8f50d6097c48
--- /dev/null
+++ b/Documentation/devicetree/bindings/hypervisor/msft,vmbus.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/hypervisor/msft,vmbus.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microsoft Hyper-V VMBus device tree bindings
+
+maintainers:
+  - Saurabh Sengar <ssengar@...ux.microsoft.com>
+
+description:
+  VMBus is a software bus that implement the protocols for communication
+  between the root or host OS and guest OSs (virtual machines).
+
+properties:
+  compatible:
+    const: msft,vmbus
+
+  ranges: true
+
+  '#address-cells':
+    const: 2
+
+  '#size-cells':
+    const: 1
+
+required:
+  - compatible
+  - ranges
+  - '#address-cells'
+  - '#size-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    / {
+        compatible = "foo";
+        model = "foo";
+        #address-cells = <0x02>;
+        #size-cells = <0x02>;
+
+        vmbus@...000000 {
+            #address-cells = <0x02>;
+            #size-cells = <0x01>;
+            compatible = "msft,vmbus";
+            ranges = <0x00 0x00 0x0f 0xf0000000 0x10000000>;
+        };
+    };
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
index 1f7a519a936f..ab74ea97535f 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
+++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
@@ -876,6 +876,8 @@ patternProperties:
     deprecated: true
   "^mscc,.*":
     description: Microsemi Corporation
+  "^msft,.*":
+    description: Microsoft Corporation
   "^msi,.*":
     description: Micro-Star International Co. Ltd.
   "^mstar,.*":
diff --git a/MAINTAINERS b/MAINTAINERS
index 9bc5b88b723a..c749782b0cff 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9496,6 +9496,7 @@ S:	Supported
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git
 F:	Documentation/ABI/stable/sysfs-bus-vmbus
 F:	Documentation/ABI/testing/debugfs-hyperv
+F:	Documentation/devicetree/bindings/hypervisor/msft,vmbus.yaml
 F:	Documentation/virt/hyperv
 F:	Documentation/networking/device_drivers/ethernet/microsoft/netvsc.rst
 F:	arch/arm64/hyperv
-- 
2.25.1