linux-kernel - Re: [PATCH v2 1/2] gpio: cadence: Add quirk for Axiado AX3000 platform

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Message-ID: <CAD++jLn6yp7rej10rLu2rXU5Tyr-U9AXr92qXha-MX382DNKrQ@mail.gmail.com>
Date: Fri, 9 Jan 2026 10:55:51 +0100
From: Linus Walleij <linusw@...nel.org>
To: Swark Yang <syang@...ado.com>
Cc: Linus Walleij <linus.walleij@...aro.org>, Bartosz Golaszewski <brgl@...nel.org>, 
	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org, 
	openbmc@...ts.ozlabs.org, Tzu-Hao Wei <twei@...ado.com>
Subject: Re: [PATCH v2 1/2] gpio: cadence: Add quirk for Axiado AX3000 platform

On Fri, Jan 9, 2026 at 10:26 AM Swark Yang <syang@...ado.com> wrote:

> On the Axiado AX3000 platform, pinmux and pin configuration (such as
> direction and output enable) are configured by the hardware/firmware
> at boot time before Linux boots.
>
> To prevent conflicts, introduce a platform-specific quirk triggered by
> the "axiado,ax3000-gpio" compatible string.
>
> When this quirk is active, the driver will skip its default
> initialization of pinmux configuration and direction settings during
> probe.
>
> Co-developed-by: Tzu-Hao Wei <twei@...ado.com>
> Signed-off-by: Tzu-Hao Wei <twei@...ado.com>
> Signed-off-by: Swark Yang <syang@...ado.com>

Yes, exactly like this!
Reviewed-by: Linus Walleij <linusw@...nel.org>

Yours,
Linus Walleij