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

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Message-ID: <20230306074930.GA22542@linuxonhyperv3.guj3yctzbm1etfxqx2vob5hsef.xx.internal.cloudapp.net>
Date:   Sun, 5 Mar 2023 23:49:30 -0800
From:   Saurabh Singh 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: Re: [PATCH v7 4/5] dt-bindings: bus: VMBus

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@...ux.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@...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 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