[v7] Device tree support for Hyper-V VMBus driver

[PATCH v7 4/5] dt-bindings: bus: VMBus

Posted by Saurabh Sengar 2 years, 11 months ago

Add dt-bindings for Hyper-V VMBus.

Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
---
[V7]
- update ranges; property in simplie-bus for correct 1:1 translation.

 .../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@linux.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@ff0000000 {
+                compatible = "microsoft,vmbus";
+                #address-cells = <2>;
+                #size-cells = <1>;
+                ranges = <0x0f 0xf0000000 0x0f 0xf0000000 0x10000000>;
+            };
+        };
+    };
diff --git a/MAINTAINERS b/MAINTAINERS
index f32aca51242f..aae3c1fb55fd 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9510,6 +9510,7 @@ 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

Re: [PATCH v7 4/5] dt-bindings: bus: VMBus

Posted by Rob Herring 2 years, 11 months ago

On Thu, 23 Feb 2023 03:29:04 -0800, Saurabh Sengar wrote:
> Add dt-bindings for Hyper-V VMBus.
> 
> Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
> ---
> [V7]
> - update ranges; property in simplie-bus for correct 1:1 translation.
> 
>  .../bindings/bus/microsoft,vmbus.yaml         | 54 +++++++++++++++++++
>  MAINTAINERS                                   |  1 +
>  2 files changed, 55 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml
> 

Reviewed-by: Rob Herring <robh@kernel.org>

Re: [PATCH v7 4/5] dt-bindings: bus: VMBus

Posted by Saurabh Singh Sengar 2 years, 11 months ago

On Thu, Feb 23, 2023 at 03:29:04AM -0800, Saurabh Sengar wrote:
> Add dt-bindings for Hyper-V VMBus.
> 
> Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
> ---
> [V7]
> - update ranges; property in simplie-bus for correct 1:1 translation.
> 
>  .../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@linux.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@ff0000000 {
> +                compatible = "microsoft,vmbus";
> +                #address-cells = <2>;
> +                #size-cells = <1>;
> +                ranges = <0x0f 0xf0000000 0x0f 0xf0000000 0x10000000>;
> +            };
> +        };
> +    };
> diff --git a/MAINTAINERS b/MAINTAINERS
> index f32aca51242f..aae3c1fb55fd 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -9510,6 +9510,7 @@ 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

Hi Rob,

Did you get chance to review this. Please let me know if you need any additional
information or if its good to be merged.

Regards,
Saurabh