linux-kernel - Re: [PATCH v2 00/30] Rework Nomadik GPIO to add Mobileye EyeQ5 support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <CZHH1KDAVDCC.1INC050YK8HU1@bootlin.com>
Date: Thu, 29 Feb 2024 10:56:32 +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>, "Krzysztof Kozlowski"
 <krzysztof.kozlowski@...aro.org>, "Stephen Warren" <swarren@...dotorg.org>,
 "Jonathan Corbet" <corbet@....net>, <linux-doc@...r.kernel.org>
Subject: Re: [PATCH v2 00/30] Rework Nomadik GPIO to add Mobileye EyeQ5
 support

Hello,

On Thu Feb 29, 2024 at 10:44 AM CET, Linus Walleij wrote:
> On Wed, Feb 28, 2024 at 12:28 PM Théo Lebrun <theo.lebrun@...tlin.com> wrote:
>
> > This patch series reworks the Nomadik GPIO driver to bring it up to date
> > to current kernel standards. We then add Mobileye EyeQ5 support that
> > uses the same IP block but with limited functionality. We also add
> > features required by our newly supported platform:
> >
> >  - Dynamic GPIO ID allocation;
> >  - Make clock optional;
> >  - Shared IRQ (usecase: EyeQ5 has two banks using the same IRQ);
> >  - Handle variadic GPIO counts (usecase: EyeQ5 has <32 GPIOs per bank);
> >  - Grab optional reset at probe (usecase: EyeQ5 has a shared GPIO reset).
> >
> > This GPIO platform driver was previously declared & registered inside
> > drivers/pinctrl/nomadik/pinctrl-nomadik.c, side-by-side with the
> > pinctrl driver. Both are tightly integrated, mostly for muxing reasons.
> > Now that gpio-nomadik is used for another platform, we loosen the
> > relationship. The behavior should not change on already supported
> > hardware but I do not have Nomadik hardware to test for that.
>
> I have queued the relevant patches to an immutable branch in the
> pinctrl tree for testing and I can also pick up some ACKs if they arrive.
>
> When I'm confident in the branch, I will send an optional pull request
> to Bartosz for it!

That is all great news, thanks Linus! I'm staying available if you
encounter anything that needs action.

Have a nice day,

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