linux-kernel - Re: [PATCH 18/23] gpio: nomadik: support mobileye,eyeq5-gpio

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Message-Id: <CZAW8NNS98TB.18RASC15YIRNB@bootlin.com>
Date: Wed, 21 Feb 2024 17:22:25 +0100
From: Théo Lebrun <theo.lebrun@...tlin.com>
To: "Linus Walleij" <linus.walleij@...aro.org>
Cc: "Bartosz Golaszewski" <brgl@...ev.pl>, "Rob Herring"
 <robh+dt@...nel.org>, "Krzysztof Kozlowski"
 <krzysztof.kozlowski+dt@...aro.org>, "Conor Dooley" <conor+dt@...nel.org>,
 "Philipp Zabel" <p.zabel@...gutronix.de>, "Thomas Bogendoerfer"
 <tsbogend@...ha.franken.de>, <linux-gpio@...r.kernel.org>,
 <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
 <linux-arm-kernel@...ts.infradead.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 18/23] gpio: nomadik: support mobileye,eyeq5-gpio

Hello,

On Wed Feb 21, 2024 at 2:45 PM CET, Linus Walleij wrote:
> On Wed, Feb 14, 2024 at 5:24 PM Théo Lebrun <theo.lebrun@...tlin.com> wrote:
> > We create a custom compatible for the STA2X11 IP block as integrated
> > into the Mobileye EyeQ5 platform. Its wake and alternate functions have
> > been disabled, we want to avoid touching those registers.
> >
> > We both do: (1) early return in functions that do not support the
> > platform, but with warnings, and (2) avoid calling those functions in
> > the first place.
> >
> > We ensure that pinctrl-nomadik is not used with this STA2X11 variant.
> >
> > Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>
> (...)
> >+       bool quirk_mbly;
>
> Compulsive abbreviation? I would just rename it:
>
> bool is_mobileye_soc;
>
> Nevermind the long name, it makes it crystal clear for readers
> what is going on. (Rusty Russell's API naming guidelines.)
>
> With that changed:
> Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Makes complete sense. This is old heritage from my initial prototype
that should have long gone disappeared.

Thanks for your feedback & reviews!

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