linux-kernel - Re: [PATCH v5 07/11] dt-bindings: test: Add single clk consumer

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Date: Tue, 4 Jun 2024 15:19:18 -0500
From: Rob Herring <robh@...nel.org>
To: Stephen Boyd <sboyd@...nel.org>
Cc: Michael Turquette <mturquette@...libre.com>, linux-kernel@...r.kernel.org, 
	linux-clk@...r.kernel.org, patches@...ts.linux.dev, 
	kunit-dev@...glegroups.com, linux-kselftest@...r.kernel.org, 
	devicetree@...r.kernel.org, Brendan Higgins <brendan.higgins@...ux.dev>, 
	David Gow <davidgow@...gle.com>, Rae Moar <rmoar@...gle.com>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, "Rafael J . Wysocki" <rafael@...nel.org>, 
	Saravana Kannan <saravanak@...gle.com>, Daniel Latypov <dlatypov@...gle.com>, 
	Christian Marangi <ansuelsmth@...il.com>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Maxime Ripard <maxime@...no.tech>
Subject: Re: [PATCH v5 07/11] dt-bindings: test: Add single clk consumer

On Tue, Jun 4, 2024 at 1:28 PM Stephen Boyd <sboyd@...nel.org> wrote:
>
> Quoting Rob Herring (2024-06-04 06:05:26)
> > On Mon, Jun 03, 2024 at 03:38:04PM -0700, Stephen Boyd wrote:
> > > Describe a binding for a device that consumes a single clk in DT. This
> > > will initially be used by a KUnit test to clk_get() the clk registered
> > > by of_fixed_clk_setup() and test that it is setup properly.
> > >
> > > Cc: Rob Herring <robh@...nel.org>
> > > Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
> > > Cc: Conor Dooley <conor+dt@...nel.org>
> > > Cc: Brendan Higgins <brendan.higgins@...ux.dev>
> > > Cc: David Gow <davidgow@...gle.com>
> > > Cc: Rae Moar <rmoar@...gle.com>
> > > Signed-off-by: Stephen Boyd <sboyd@...nel.org>
> > > ---
> > >  .../test/test,single-clk-consumer.yaml        | 34 +++++++++++++++++++
> > >  1 file changed, 34 insertions(+)
> > >  create mode 100644 Documentation/devicetree/bindings/test/test,single-clk-consumer.yaml
> > >
> > > diff --git a/Documentation/devicetree/bindings/test/test,single-clk-consumer.yaml b/Documentation/devicetree/bindings/test/test,single-clk-consumer.yaml
> > > new file mode 100644
> > > index 000000000000..8c384c48707d
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/test/test,single-clk-consumer.yaml
> > > @@ -0,0 +1,34 @@
> > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > +%YAML 1.2
> > > +---
> > > +$id: http://devicetree.org/schemas/test/test,single-clk-consumer.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Test consumer of a single clock
> > > +
> > > +maintainers:
> > > +  - Stephen Boyd <sboyd@...nel.org>
> > > +
> > > +description:
> > > +  A consumer of a single clock used in tests.
> > > +
> > > +properties:
> > > +  compatible:
> > > +    const: test,single-clk-consumer
> >
> > I don't know if there's much value in defining bindings for tests. We
> > could alternatively make 'test,' opt out of everything. There's already
> > some support in dtschema for this with 'foo,'.
> >
> > I need something for the DT unittest as well.
> >
>
> Ok. So I should drop this patch and the other one that adds a binding
> for the fake clock provider?

Yes.

> And replace it with something that makes
> the test vendor prefix opt out of all checking? How is that done?  Some
> patch to dtschema directly?

Yes, but I just added it for you.

Rob