linux-kernel - Re: [PATCH v2 00/10] dt-bindings: iio: use spi-peripheral-props.yaml

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Message-ID: <bd829586-f052-03c3-aa68-e5a2be84b6bb@linaro.org>
Date:   Mon, 1 Aug 2022 17:45:07 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Lukas Wunner <lukas@...ner.de>
Cc:     Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Jonathan Cameron <jic23@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Lucas Stankus <lucas.p.stankus@...il.com>,
        Puranjay Mohan <puranjay12@...il.com>,
        Cosmin Tanislav <cosmin.tanislav@...log.com>,
        Alexandru Tachici <alexandru.tachici@...log.com>,
        Marcelo Schmitt <marcelo.schmitt1@...il.com>,
        Marcus Folkesson <marcus.folkesson@...il.com>,
        Kent Gustavsson <kent@...oris.se>,
        Tomislav Denis <tomislav.denis@....com>,
        Oleksij Rempel <linux@...pel-privat.de>, kernel@...gutronix.de,
        Antoniu Miclaus <antoniu.miclaus@...log.com>,
        Ricardo Ribalda <ribalda@...nel.org>,
        Dragos Bogdan <dragos.bogdan@...log.com>,
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        Linus Walleij <linus.walleij@...aro.org>,
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        linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-fbdev@...r.kernel.org
Subject: Re: [PATCH v2 00/10] dt-bindings: iio: use spi-peripheral-props.yaml

On 31/07/2022 00:46, Lukas Wunner wrote:
> On Wed, Jul 27, 2022 at 06:46:36PM +0200, Krzysztof Kozlowski wrote:
>>  78 files changed, 324 insertions(+), 249 deletions(-)
> 
> Pardon me for being dense, but what is the benefit of this series
> that justifies inflating the schema definitions by a total of 75 lines?

The commits were explaining rationale, so let me bring it here. The
benefits are:
This allows using all properties typical for SPI-connected devices, even
these which device bindings author did not tried yet.

Also, what I did not mention in commit msg, this makes sure, that
spi-xxx properties have a type, which is validated by
spi-peripheral-props.yaml. Otherwise, when someone puts bogus data as
spi-max-frequency (e.g. phandle) and checks only with that device
schema, no errors are reported.

Best regards,
Krzysztof