linux-kernel - Re: [PATCH 09/13] i2c: nomadik: fetch timeout-usecs property from devicetree

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Message-Id: <CZHGIIQPJ6KU.ZY00CXS7MHA7@bootlin.com>
Date: Thu, 29 Feb 2024 10:31:39 +0100
From: Théo Lebrun <theo.lebrun@...tlin.com>
To: "Wolfram Sang" <wsa@...nel.org>
Cc: "Linus Walleij" <linus.walleij@...aro.org>, "Andi Shyti"
 <andi.shyti@...nel.org>, "Rob Herring" <robh+dt@...nel.org>, "Krzysztof
 Kozlowski" <krzysztof.kozlowski+dt@...aro.org>, "Conor Dooley"
 <conor+dt@...nel.org>, "Thomas Bogendoerfer" <tsbogend@...ha.franken.de>,
 <linux-arm-kernel@...ts.infradead.org>, <linux-i2c@...r.kernel.org>,
 <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
 <linux-mips@...r.kernel.org>, "Gregory Clement"
 <gregory.clement@...tlin.com>, "Vladimir Kondratiev"
 <vladimir.kondratiev@...ileye.com>, "Thomas Petazzoni"
 <thomas.petazzoni@...tlin.com>, "Tawfik Bayouk"
 <tawfik.bayouk@...ileye.com>
Subject: Re: [PATCH 09/13] i2c: nomadik: fetch timeout-usecs property from
 devicetree

Hello,

On Thu Feb 29, 2024 at 10:25 AM CET, Wolfram Sang wrote:
> > The alternative is that I keep going with a new revision of i2c-nomadik
> > that manually parses the prop. It'll be refactored if/when the I2C core
> > provides a better way to access the value. Is that OK?
>
> That wouldn't have helped because there is still no user in-kernel of
> that property, i.e. no DTS file with that property. But I just realized
> that I need to convert i2c-mpc to avoid a deprecated binding, so we have
> a user there. Lucky you ;)
>
> I'll try to get the series done today.

Lucky me indeed!

I just thought about it but I don't mind using the property in the eval
board DTS. The default 200ms timeout makes no sense for us. Using a
default of a few ms would be more sensible and make us the second user
of the prop.

Thanks,

--
Théo Lebrun, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com