linux-kernel - Re: [PATCH v4 1/9] gpio: mmio: add BGPIOF_NO

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Message-ID: <CACRpkdYfU0xGAWwjJVaDLS_QjT2jjVZouQ4bVU8gqMkfEc05Bg@mail.gmail.com>
Date: Thu, 5 Jun 2025 14:59:34 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Clément Le Goffic <clement.legoffic@...s.st.com>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, Maxime Coquelin <mcoquelin.stm32@...il.com>, 
	Alexandre Torgue <alexandre.torgue@...s.st.com>, Bartosz Golaszewski <brgl@...ev.pl>, 
	linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, 
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v4 1/9] gpio: mmio: add BGPIOF_NO_INPUT flag for GPO gpiochip

On Wed, May 28, 2025 at 3:33 PM Clément Le Goffic
<clement.legoffic@...s.st.com> wrote:

> When using bgpio_init with a gpiochip acting as a GPO (output only), the
> gpiochip ops `direction_input` was set to `bgpio_simple_dir_in` by
> default but we have no input ability.
>
> Adding this flag allows to set a valid ops for the `direction_output`
> ops without setting a valid ops for `direction_input` by default.
>
> Signed-off-by: Clément Le Goffic <clement.legoffic@...s.st.com>

Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij