Re: [External] Re: [PATCH v3 4/4] dt-bindings: firmware: Document ffitbl binding

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On Thu, Jul 06, 2023 at 11:43:55AM +0800, 运辉崔 wrote:
> On Wed, Jul 5, 2023 at 11:07 PM Conor Dooley <conor@xxxxxxxxxx> wrote:
> > On Wed, Jul 05, 2023 at 07:42:51PM +0800, Yunhui Cui wrote:
> > > Add the description for ffitbl subnode.
> > >
> > > Signed-off-by: Yunhui Cui <cuiyunhui@xxxxxxxxxxxxx>
> > > ---
> > >  .../devicetree/bindings/firmware/ffitbl.txt   | 27 +++++++++++++++++++
> > >  MAINTAINERS                                   |  1 +
> > >  2 files changed, 28 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/firmware/ffitbl.txt
> > >
> > > diff --git a/Documentation/devicetree/bindings/firmware/ffitbl.txt b/Documentation/devicetree/bindings/firmware/ffitbl.txt
> > > new file mode 100644
> > > index 000000000000..c42368626199
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/firmware/ffitbl.txt
> >
> > Firstly, new dt-bindings need to be done in yaml, not in text form.
> > Secondly, you didn't re-run get_maintainer.pl after adding this binding,
> > so you have not CCed any of the other dt-binding maintainers nor the
> > devicetree mailing list.
> 
> Re-run get_maintainer.pl and added maintainers into the maillist.
> emm.. There is some *txt in
> Documentation/devicetree/bindings/firmware/, isn't it?

There might be, but that's not an excuse for adding _new_ ones, sorry.

> > > +FFI(FDT FIRMWARE INTERFACE) driver
> > > +
> > > +Required properties:
> > > + - entry             : acpi or smbios root pointer, u64
> > > + - reg                       : acpi or smbios version, u32
> >
> > Please go look at any other dt-binding (or the example schema) as to how
> > these properties should be used. A "reg" certainly should not be being
> > used to store the revision...
> 
> Okay, If so,I'll add a property "version" into the dts instead of
> "reg", just like, WDYT?
> ffitbl {

Firstly, I'd much rather you spelt this out, like "ffi-table".

>     smbios {
>         entry = "";

I still don't understand why "entry", which is an address, is being
represented by an empty string.
I also don't really get why you have not used "reg" to describe its
start address and size.

>         version = < 0x02 >;

Probably missing a vendor prefix, and the spaces are unusual, but better
than it was, yes.

>     }
>    acpi {
>          entry = "";
>          version = < 0x06 >;
>   }
> }

Thanks,
Conor.

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