Hi Conor,
Added dts Maintainers,
On Wed, Jul 5, 2023 at 11:07 PM Conor Dooley <conor@xxxxxxxxxx> wrote:
>
> Hey,
>
> 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?
>
> > @@ -0,0 +1,27 @@
>
> > +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 {
smbios {
entry = "";
version = < 0x02 >;
}
acpi {
entry = "";
version = < 0x06 >;
}
}
>
> Cheers,
> Conor.
>
> > +
> > +Some bootloaders, such as Coreboot do not support EFI,
> > +only devicetree and some arches do not have a reserved
> > +address segment. Add "ffitbl" subnode to obtain ACPI RSDP
> > +and SMBIOS entry.
> > +This feature is known as FDT Firmware Interface (FFI).
> > +
> > +Example:
> > + ffitbl {
> > +
> > + smbios {
> > + entry = "";
> > + reg = < 0x03 >;
> > +
> > + }
> > + acpi {
> > + entry = "";
> > + reg = < 0x06 >;
> > +
> > + }
> > + }
> > +
> > diff --git a/MAINTAINERS b/MAINTAINERS
> > index 9b886ef36587..008257e55062 100644
> > --- a/MAINTAINERS
> > +++ b/MAINTAINERS
> > @@ -7874,6 +7874,7 @@ F: include/linux/efi*.h
> > FDT FIRMWARE INTERFACE (FFI)
> > M: Yunhui Cui cuiyunhui@xxxxxxxxxxxxx
> > S: Maintained
> > +F: Documentation/devicetree/bindings/firmware/ffitbl.txt
> > F: drivers/firmware/ffi.c
> > F: include/linux/ffi.h
> >
> > --
> > 2.20.1
> >
Thanks,
Yunhui
