linux-kernel - [PATCH v8 4/5] dt-bindings: bus: VMBus

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Message-Id: <1678785350-20400-5-git-send-email-ssengar@linux.microsoft.com>
Date:   Tue, 14 Mar 2023 02:15:49 -0700
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,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-hyperv@...r.kernel.org, mikelley@...rosoft.com,
        lenb@...nel.org, rafael@...nel.org, linux-acpi@...r.kernel.org
Subject: [PATCH v8 4/5] dt-bindings: bus: VMBus

Add dt-bindings for Hyper-V VMBus.

Signed-off-by: Saurabh Sengar <ssengar@...ux.microsoft.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 .../bindings/bus/microsoft,vmbus.yaml         | 54 +++++++++++++++++++
 MAINTAINERS                                   |  1 +
 2 files changed, 55 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml

diff --git a/Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml b/Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml
new file mode 100644
index 000000000000..a8d40c766dcd
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml
@@ -0,0 +1,54 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/microsoft,vmbus.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microsoft Hyper-V VMBus
+
+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: microsoft,vmbus
+
+  ranges: true
+
+  '#address-cells':
+    const: 2
+
+  '#size-cells':
+    const: 1
+
+required:
+  - compatible
+  - ranges
+  - '#address-cells'
+  - '#size-cells'
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+        #address-cells = <2>;
+        #size-cells = <1>;
+        bus {
+            compatible = "simple-bus";
+            #address-cells = <2>;
+            #size-cells = <1>;
+            ranges;
+
+            vmbus@...000000 {
+                compatible = "microsoft,vmbus";
+                #address-cells = <2>;
+                #size-cells = <1>;
+                ranges = <0x0f 0xf0000000 0x0f 0xf0000000 0x10000000>;
+            };
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index 25a0981c74b6..c4f4c8cd9276 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9544,6 +9544,7 @@ 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/bus/microsoft,vmbus.yaml
 F:	Documentation/virt/hyperv
 F:	Documentation/networking/device_drivers/ethernet/microsoft/netvsc.rst
 F:	arch/arm64/hyperv
-- 
2.34.1