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

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Date: Tue, 4 Jun 2024 08:05:26 -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 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. 

Rob