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

From: Saurabh Singh Sengar
Date: Tue Jan 31 2023 - 20:57:27 EST


On Tue, Jan 31, 2023 at 07:54:56PM +0100, Krzysztof Kozlowski wrote:
> On 31/01/2023 19:10, Saurabh Sengar wrote:
> >
> > Signed-off-by: Saurabh Sengar <ssengar@xxxxxxxxxxxxxxxxxxx>
>
> > + - |
> > + / {
> > + compatible = "foo";
> > + model = "foo";
> > + #address-cells = <0x02>;
> > + #size-cells = <0x02>;
>
> Except previous comments (all of them were ignored),

Thank you for your comments, I have tried to address them all in this version
but I may have missed few. I will go and look again all the emails, but if
there is any thing which you can point again and we can start a new dicussion
from here will be very helpful.

I think one concern was related to use of 'reg' or 'ranges', and I
thought this patch will give clarity that I intend to use 'ranges'
without any child node. Is this acceptable ?


> also:
> Drop entire part. Not related, not correct, not helping and you cannot
> have top level nodes in example.

If I dont use the top level node, the parent address cells are assumed to be 1,
and I get below warning. If there is better way to address this warning, please
suggest I will work on it.

Warning (ranges_format): /example-0/vmbus@ff0000000:ranges: "ranges" property has invalid length (20 bytes) (parent #address-cells == 1, child #address-cells == 2, #size-cells == 1)

>
> > +
> > + vmbus@ff0000000 {
> > + #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
>
> Don't duplicate vendor prefixes. Drop and use correct prefix.

Sure, will fix this.

Regards,
Saurabh

>
> Best regards,
> Krzysztof