linux-kernel - Re: [PATCH V2 2/2] dt-bindings: Document the DesignWare IP reset bindings

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Message-ID: <CAL_JsqKmWNfmsSqe9mTyVGC14LoyKDYONokAxdqoP_5_0ZTKNg@mail.gmail.com>
Date:   Tue, 9 Jul 2019 07:23:28 -0600
From:   Rob Herring <robh@...nel.org>
To:     Luis de Oliveira <Luis.Oliveira@...opsys.com>
Cc:     "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "Joao.Pinto@...opsys.com" <Joao.Pinto@...opsys.com>,
        Gustavo Pimentel <Gustavo.Pimentel@...opsys.com>
Subject: Re: [PATCH V2 2/2] dt-bindings: Document the DesignWare IP reset bindings

On Tue, Jul 9, 2019 at 4:33 AM Luis de Oliveira
<Luis.Oliveira@...opsys.com> wrote:
>
> Hi Rob,
>
> Thank you for the comments,
>
> From: Rob Herring <robh@...nel.org>
> Date: Tue, Jul 09, 2019 at 02:52:20
>
> > On Thu, Jun 06, 2019 at 05:36:28PM +0200, Luis Oliveira wrote:
> > > This adds documentation of device tree bindings for the
> > > DesignWare IP reset controller.
> > >
> > > Signed-off-by: Gustavo Pimentel <gustavo.pimentel@...opsys.com>
> > > Signed-off-by: Luis Oliveira <luis.oliveira@...opsys.com>
> > > ---
> > > Changelog
> > > - Add active low configuration example
> > > - Fix compatible string in the active high example
> > >
> > >  .../devicetree/bindings/reset/snps,dw-reset.txt    | 30 ++++++++++++++++++++++
> > >  1 file changed, 30 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/reset/snps,dw-reset.txt
> > >
> > > diff --git a/Documentation/devicetree/bindings/reset/snps,dw-reset.txt b/Documentation/devicetree/bindings/reset/snps,dw-reset.txt
> > > new file mode 100644
> > > index 0000000..85f3301
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/reset/snps,dw-reset.txt
> > > @@ -0,0 +1,30 @@
> > > +Synopsys DesignWare Reset controller
> > > +=======================================
> > > +
> > > +Please also refer to reset.txt in this directory for common reset
> > > +controller binding usage.
> > > +
> > > +Required properties:
> > > +
> > > +- compatible: should be one of the following.
> > > +   "snps,dw-high-reset" - for active high configuration
> > > +   "snps,dw-low-reset" - for active low configuration
> >
> > This is really a standalone block?
> >
> > Are there versions of IP?
> >
>
> We use this block because is is very simple. The Verilog is autogenerated
> after an simple input configuration (APB config, reset pin number, active
> high/low, etc) so it does not need versioning.
> We use it in almost all our testchips and prototyping, and it is a
> standalone block.

Okay.

Reviewed-by: Rob Herring <robh@...nel.org>