linux-kernel - Re: [PATCH v4 01/16] dt-bindings: regulator: ROHM BD72720

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Message-Id: <176303119577.3716534.8630343707123370979.robh@kernel.org>
Date: Thu, 13 Nov 2025 04:53:16 -0600
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Matti Vaittinen <matti.vaittinen@...ux.dev>
Cc: Liam Girdwood <lgirdwood@...il.com>, linux-kernel@...r.kernel.org, 
 linux-pm@...r.kernel.org, Stephen Boyd <sboyd@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Sebastian Reichel <sre@...nel.org>, 
 Pavel Machek <pavel@...nel.org>, devicetree@...r.kernel.org, 
 Linus Walleij <linus.walleij@...aro.org>, Mark Brown <broonie@...nel.org>, 
 linux-clk@...r.kernel.org, Andreas Kemnade <andreas@...nade.info>, 
 Lee Jones <lee@...nel.org>, linux-gpio@...r.kernel.org, 
 Matti Vaittinen <mazziesaccount@...il.com>, linux-leds@...r.kernel.org, 
 Bartosz Golaszewski <brgl@...ev.pl>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, linux-rtc@...r.kernel.org, 
 Matti Vaittinen <matti.vaittinen@...rohmeurope.com>, 
 Michael Turquette <mturquette@...libre.com>, 
 Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: Re: [PATCH v4 01/16] dt-bindings: regulator: ROHM BD72720


On Thu, 13 Nov 2025 10:51:32 +0200, Matti Vaittinen wrote:
> From: Matti Vaittinen <mazziesaccount@...il.com>
> 
> The ROHM BD72720 is a new PMIC with 10 BUCk and 11 LDO regulators.
> 
> The BD72720 is designed to support using the BUCK10 as a supply for
> the LDOs 1 to 4. When the BUCK10 is used for this, it can be set to a
> LDON_HEAD mode. In this mode, the BUCK10 voltage can't be controlled by
> software, but the voltage is adjusted by PMIC to match the LDO1 .. LDO4
> voltages with a given offset. Offset can be 50mV .. 300mV and is
> changeable at 50mV steps.
> 
> Add 'ldon-head-microvolt' property to denote a board which is designed
> to utilize the LDON_HEAD mode.
> 
> All other properties are already existing.
> 
> Add dt-binding doc for ROHM BD72720 regulators to make it usable.
> 
> Signed-off-by: Matti Vaittinen <mazziesaccount@...il.com>
> 
> ---
> Revision history:
>  v3 => v4:
>  - Drop type from ldon-head
>  - Fix the name patterns for regulator nodes and names
> 
>  v2 => v3:
>  - drop unnecessary descriptions
>  - use microvolts for the 'ldon-head' dt-property
> 
>  RFCv1 => v2:
>  - No changes
> ---
>  .../regulator/rohm,bd72720-regulator.yaml     | 148 ++++++++++++++++++
>  1 file changed, 148 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd72720-regulator.yaml
> 

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

yamllint warnings/errors:

dtschema/dtc warnings/errors:


doc reference errors (make refcheckdocs):
Warning: Documentation/devicetree/bindings/regulator/rohm,bd72720-regulator.yaml references a file that doesn't exist: Documentation/devicetree/bindings/mfd/rohm,bd72720-pmic.yaml
Documentation/devicetree/bindings/regulator/rohm,bd72720-regulator.yaml: Documentation/devicetree/bindings/mfd/rohm,bd72720-pmic.yaml

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/21e83fccf2d2422f4bea1c482dcd3cb1aeda4085.1763022807.git.mazziesaccount@gmail.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.