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Message-ID: <CACRpkdY+cjU__XSxrSnKtZjkd=jRT13OWD8RXh3JUedNk0TPWQ@mail.gmail.com>
Date: Thu, 29 Feb 2024 10:24:02 +0100
From: Linus Walleij <linus.walleij@...aro.org>
To: Théo Lebrun <theo.lebrun@...tlin.com>
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 v2 06/30] gpio: nomadik: extract GPIO platform driver from drivers/pinctrl/nomadik/

On Wed, Feb 28, 2024 at 12:28 PM Théo Lebrun <theo.lebrun@...tlin.com> wrote:

> Previously, drivers/pinctrl/nomadik/pinctrl-nomadik.c registered two
> platform drivers: pinctrl & GPIO. Move the GPIO aspect to the
> drivers/gpio/ folder, as would be expected.
>
> Both drivers are intertwined for a reason; pinctrl requires access to
> GPIO registers for pinmuxing, pull-disable, disabling interrupts while
> setting the muxing and wakeup control. Information sharing is done
> through a shared array containing GPIO chips and a few helper
> functions. That shared array is not touched from gpio-nomadik when
> CONFIG_PINCTRL_NOMADIK is not defined.
>
> Make no change to the code that moved into gpio-nomadik; there should be
> no behavior change following. A few functions are shared and header
> comments are added. Checkpatch warnings are addressed. NUM_BANKS is
> renamed to NMK_MAX_BANKS.
>
> It is supported to compile gpio-nomadik without pinctrl-nomadik. The
> opposite is not true.
>
> Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>

Patch applied.

It's good to get this move done, then we can iron out minor issues to
the GPIO part in the GPIO tree as we move along.

I will send the patches to Bartosz with an optional pull request for
this immutable branch.

Yours,
Linus Walleij

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