linux-kernel - Re: [PATCH v2 1/9] dt-bindings: iio: dac: ad3552r: add io-backend property

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Message-Id: <172555368556.2000291.1962340187875764544.robh@kernel.org>
Date: Thu, 05 Sep 2024 11:28:06 -0500
From: "Rob Herring (Arm)" <robh@...nel.org>
To: Angelo Dureghello <adureghello@...libre.com>
Cc: Lars-Peter Clausen <lars@...afoo.de>, linux-iio@...r.kernel.org, 
 Jonathan Cameron <jic23@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Nuno Sá <nuno.sa@...log.com>, linux-kernel@...r.kernel.org, 
 Michael Hennerich <Michael.Hennerich@...log.com>, 
 Olivier Moysan <olivier.moysan@...s.st.com>, devicetree@...r.kernel.org, 
 David Lechner <dlechner@...libre.com>, Conor Dooley <conor+dt@...nel.org>
Subject: Re: [PATCH v2 1/9] dt-bindings: iio: dac: ad3552r: add io-backend
 property


On Thu, 05 Sep 2024 17:17:31 +0200, Angelo Dureghello wrote:
> From: Angelo Dureghello <adureghello@...libre.com>
> 
> There is a version AXI DAC IP block (for FPGAs) that provides
> a physical bus for AD3552R and similar chips. This can be used
> instead of a typical SPI controller to be able to use the chip
> in ways that typical SPI controllers are not capable of.
> 
> The binding is modified so that either the device is a SPI
> peripheral or it uses an io-backend.
> 
> Signed-off-by: Angelo Dureghello <adureghello@...libre.com>
> ---
>  .../devicetree/bindings/iio/dac/adi,ad3552r.yaml   | 42 ++++++++++++++++++++--
>  1 file changed, 40 insertions(+), 2 deletions(-)
> 

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

yamllint warnings/errors:

dtschema/dtc warnings/errors:
Documentation/devicetree/bindings/iio/dac/adi,ad3552r.example.dtb: /example-1/axi_dac@...70000: failed to match any schema with compatible: ['adi,axi-dac-ad3552r']

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240905-wip-bl-ad3552r-axi-v0-iio-testing-v2-1-87d669674c00@baylibre.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.