Linux GPIO subsystem development
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From: Markus Elfring <Markus.Elfring@web.de>
To: Szuying Chen <Chloe_Chen@asmedia.com.tw>,
	YD Tseng <Yd_Tseng@asmedia.com.tw>,
	linux-gpio@vger.kernel.org, Bartosz Golaszewski <brgl@kernel.org>,
	Linus Walleij <linusw@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Jesse Chang <Jesse1_Chang@asmedia.com.tw>,
	Richard Hsu <Richard_Hsu@asmedia.com.tw>
Subject: Re: [PATCH v2] gpio: amdptpci: add support for AMD PT PCI controller
Date: Tue, 13 Oct 2026 10:48:44 +0200	[thread overview]
Message-ID: <80aea221-af95-4367-aa39-50845bf5abe0@web.de> (raw)
In-Reply-To: <20261013074327.4961-1-Chloe_Chen@asmedia.com.tw>

> This commit implements the new gpio-amdptpci driver to support the
…

See also:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v7.3-rc7#n94


> Signed-off-by: Szuying Chen <Chloe_Chen@asmedia.com.tw>
> Co-authored-by: YD Tseng <Yd_Tseng@asmedia.com.tw>

See also:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v7.3-rc7#n502


> v1->v2:
…
> ---
…
>  drivers/gpio/gpio-amdptpci.c | 891 +++++++++++++++++++++++++++++++++++

Please move patch version descriptions behind the marker line.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v7.3-rc7#n793


…
> +++ b/drivers/gpio/gpio-amdptpci.c
> @@ -0,0 +1,891 @@
…
> +static int pt27_gpio_get_direction(struct gpio_chip *gc, unsigned int offset)
> +{
…
> +	raw_spin_lock_irqsave(&chip->lock, flags);
> +	val = pt27_rd32(chip, PT27_REG_DIR);
> +	raw_spin_unlock_irqrestore(&chip->lock, flags);
…

Under which circumstances would you become interested to apply a statement
like “guard(raw_spinlock_irqsave)(&chip->lock);”?
https://elixir.bootlin.com/linux/v7.3-rc6/source/include/linux/spinlock.h#L594-L597

Regards,
Markus

  parent reply	other threads:[~2026-10-13  8:49 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-10-13  7:43 [PATCH v2] gpio: amdptpci: add support for AMD PT PCI controller Szuying Chen
2026-10-13  7:56 ` sashiko-bot
2026-10-13  8:48 ` Markus Elfring [this message]
  -- strict thread matches above, loose matches on Subject: below --
2026-10-13  8:16 Szuying Chen
2026-10-13  8:30 ` sashiko-bot

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