linux-kernel - Re: [EXTERNAL] Re: [PATCH RESEND v4 1/4] dt-bindings: platform: microsoft: Document surface xbl

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Message-ID: <CAL_JsqJPq=B+DEGFvg_JNvDiZiig-wGetNJ4u8ssnJV_ADp4QQ@mail.gmail.com>
Date:   Tue, 4 Jan 2022 16:00:05 -0600
From:   Rob Herring <robh@...nel.org>
To:     Jarrett Schultz <jaschultz@...rosoft.com>
Cc:     Jarrett Schultz <jaschultzms@...il.com>,
        Andy Gross <agross@...nel.org>,
        "bjorn.andersson@...aro.org" <bjorn.andersson@...aro.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Mark Gross <markgross@...nel.org>,
        Maximilian Luz <luzmaximilian@...il.com>,
        Felipe Balbi <balbi@...nel.org>,
        "linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
        "platform-driver-x86@...r.kernel.org" 
        <platform-driver-x86@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [EXTERNAL] Re: [PATCH RESEND v4 1/4] dt-bindings: platform:
 microsoft: Document surface xbl

On Mon, Dec 27, 2021 at 10:17 AM Jarrett Schultz
<jaschultz@...rosoft.com> wrote:
>
>
>
> > -----Original Message-----
> > From: Rob Herring <robh@...nel.org>
> > Sent: Monday, December 27, 2021 9:46 AM
> > To: Jarrett Schultz <jaschultz@...rosoft.com>
> > Cc: Jarrett Schultz <jaschultzms@...il.com>; Andy Gross
> > <agross@...nel.org>; bjorn.andersson@...aro.org; Hans de Goede
> > <hdegoede@...hat.com>; Mark Gross <markgross@...nel.org>; Maximilian
> > Luz <luzmaximilian@...il.com>; Felipe Balbi <balbi@...nel.org>; linux-arm-
> > msm@...r.kernel.org; platform-driver-x86@...r.kernel.org; linux-
> > kernel@...r.kernel.org; devicetree@...r.kernel.org
> > Subject: Re: [EXTERNAL] Re: [PATCH RESEND v4 1/4] dt-bindings: platform:
> > microsoft: Document surface xbl

Please fix your mail client reply style.

> >
> > On Mon, Dec 27, 2021 at 10:54 AM Jarrett Schultz
> > <jaschultz@...rosoft.com> wrote:
> > >
> > >
> > >
> > > > -----Original Message-----
> > > > From: Rob Herring <robh@...nel.org>
> > > > Sent: Tuesday, December 21, 2021 5:24 PM
> > > > To: Jarrett Schultz <jaschultzms@...il.com>
> > > > Cc: Andy Gross <agross@...nel.org>; bjorn.andersson@...aro.org; Hans
> > > > de Goede <hdegoede@...hat.com>; Mark Gross
> > <markgross@...nel.org>;
> > > > Maximilian Luz <luzmaximilian@...il.com>; Felipe Balbi
> > > > <balbi@...nel.org>; linux-arm-msm@...r.kernel.org; platform-driver-
> > > > x86@...r.kernel.org; linux-kernel@...r.kernel.org;
> > > > devicetree@...r.kernel.org; Jarrett Schultz
> > > > <jaschultz@...rosoft.com>
> > > > Subject: [EXTERNAL] Re: [PATCH RESEND v4 1/4] dt-bindings: platform:
> > > > microsoft: Document surface xbl
> > > >
> > > > On Tue, Dec 21, 2021 at 10:28:23AM -0800, Jarrett Schultz wrote:
> > > > > From: Jarrett Schultz <jaschultz@...rosoft.com>
> > > > >
> > > > > Introduce yaml for surface xbl driver.
> > > > >
> > > > > Signed-off-by: Jarrett Schultz <jaschultz@...rosoft.com>
> > > > >
> > > > > ---
> > > > >
> > > > > Changes in v4:
> > > > >  - Addressed small formatting changes
> > > > >  - Removed unnecessary lines
> > > > >
> > > > > ---
> > > > >
> > > > > Changes in v3:
> > > > >  - Updated description to only pertain to the hardware
> > > > >  - Updated the required field to properly reflect the binding
> > > > >  - Removed the first example
> > > > >  - Fixed the size of the reg field in the second example
> > > > >
> > > > > ---
> > > > >
> > > > > Changes in v2:
> > > > >  - Removed json-schema dependence
> > > > >  - Elaborated on description of driver
> > > > >  - Updated example
> > > > > ---
> > > > >  .../platform/microsoft/surface-xbl.yaml       | 64 +++++++++++++++++++
> > > > >  MAINTAINERS                                   |  7 ++
> > > > >  2 files changed, 71 insertions(+)  create mode 100644
> > > > > Documentation/devicetree/bindings/platform/microsoft/surface-xbl.y
> > > > > aml
> > > > >
> > > > > diff --git
> > > > > a/Documentation/devicetree/bindings/platform/microsoft/surface-
> > > > xbl.yam
> > > > > l
> > > > > b/Documentation/devicetree/bindings/platform/microsoft/surface-
> > > > xbl.yam
> > > > > l
> > > > > new file mode 100644
> > > > > index 000000000000..df5a87a016f4
> > > > > --- /dev/null
> > > > > +++ b/Documentation/devicetree/bindings/platform/microsoft/surface
> > > > > +++ -xbl
> > > > > +++ .yaml
> > > > > @@ -0,0 +1,64 @@
> > > > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) %YAML
> > > > > +1.2
> > > > > +---
> > > > > +$id:
> > > > >
> > > >
> > +https://nam06.safelinks.protection.outlook.com/?url=http%3A%2F%2Fde
> > > > +vi
> > > > > +cetree.org%2Fschemas%2Fplatform%2Fmicrosoft%2Fsurface-
> > > > xbl.yaml%23&amp

And this...

Or trim the context if not relevant to the discussion.

[...]

> > > > > +examples:
> > > > > +  - |
> > > > > +    / {
> > > > > +        compatible = "foo";
> > > > > +        model = "foo";
> > > >
> > > > No need to make this the root node with a fake compatible.
> > >
> > > I included this root node in order to make #address-cells =
> > > #size-cells = 2, since this example raises errors otherwise.
> >
> > Why does your example require 2 cells? You only have 4KB of address space.
>
> The soc node that imem sits under in sm8150.dtsi defines it that way so for
> continuity I figured that it would make sense for the example to mirror that.

It's just an example. If you are just duplicating dts files, why have examples?

>
> Also, should imem and xbl be documented in separate files?

No. That depends more on the size of the schema. So it's a judgment
call typically.

Rob