linux-kernel - Re: [PATCH 1/4] regulator: dt-bindings: Add Linear Technology LTM8054 regulator

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Message-Id: <175802889806.3636334.5922063165326624339.robh@kernel.org>
Date: Tue, 16 Sep 2025 08:25:15 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Romain Gantois <romain.gantois@...tlin.com>
Cc: devicetree@...r.kernel.org, Mark Brown <broonie@...nel.org>, 
 Jonathan Cameron <jic23@...nel.org>, Liam Girdwood <lgirdwood@...il.com>, 
 Conor Dooley <conor+dt@...nel.org>, David Lechner <dlechner@...libre.com>, 
 Andy Shevchenko <andy@...nel.org>, linux-kernel@...r.kernel.org, 
 linux-iio@...r.kernel.org, Nuno Sá <nuno.sa@...log.com>, 
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>
Subject: Re: [PATCH 1/4] regulator: dt-bindings: Add Linear Technology
 LTM8054 regulator


On Tue, 16 Sep 2025 12:24:06 +0200, Romain Gantois wrote:
> The Linear Technology LTM8054 is a Buck-Boost voltage regulator with an
> input range of 5V to 36V and an output range of 1.2V to 36V.
> 
> The LTM8054's output voltage level is typically set using a voltage divider
> between the Vout and FB pins, the FB pin being constantly regulated to
> 1.2V.
> 
> The output current limit of the LTM8054 may be statically set by placing a
> sense resistor on a dedicated pin. This limit can then be lowered by
> controlling the voltage level on the CTL pin.
> 
> Describe the LTM8054 voltage regulator.
> 
> Signed-off-by: Romain Gantois <romain.gantois@...tlin.com>
> ---
>  .../bindings/regulator/lltc,ltm8054.yaml           | 77 ++++++++++++++++++++++
>  MAINTAINERS                                        |  5 ++
>  2 files changed, 82 insertions(+)
> 

My bot found errors running 'make dt_binding_check' on your patch:

yamllint warnings/errors:

dtschema/dtc warnings/errors:
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/regulator/lltc,ltm8054.example.dtb: /: 'compatible' is a required property
	from schema $id: http://devicetree.org/schemas/root-node.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/regulator/lltc,ltm8054.example.dtb: /: 'model' is a required property
	from schema $id: http://devicetree.org/schemas/root-node.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/regulator/lltc,ltm8054.example.dtb: /: '#address-cells' is a required property
	from schema $id: http://devicetree.org/schemas/root-node.yaml#
/builds/robherring/dt-review-ci/linux/Documentation/devicetree/bindings/regulator/lltc,ltm8054.example.dtb: /: '#size-cells' is a required property
	from schema $id: http://devicetree.org/schemas/root-node.yaml#

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20250916-ltm8054-driver-v1-1-fd4e781d33b9@bootlin.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.