From: Bartosz Golaszewski <brgl@bgdev.pl>
To: Kees Cook <kees@kernel.org>, Mika Westerberg <westeri@kernel.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Walleij <linus.walleij@linaro.org>,
Manivannan Sadhasivam <mani@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Saravana Kannan <saravanak@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Andy Shevchenko <andy@kernel.org>,
Bartosz Golaszewski <brgl@bgdev.pl>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Srinivas Kandagatla <srini@kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>,
Jaroslav Kysela <perex@perex.cz>, Takashi Iwai <tiwai@suse.com>,
Alexey Klimov <alexey.klimov@linaro.org>
Cc: linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-gpio@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-sound@vger.kernel.org, linux-arm-msm@vger.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Subject: [PATCH v3 02/10] gpiolib: define GPIOD_FLAG_SHARED
Date: Wed, 29 Oct 2025 12:20:38 +0100 [thread overview]
Message-ID: <20251029-gpio-shared-v3-2-71c568acf47c@linaro.org> (raw)
In-Reply-To: <20251029-gpio-shared-v3-0-71c568acf47c@linaro.org>
From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Define a new GPIO descriptor flag for marking pins that are shared by
multiple consumer. This flag will be used in several places so we need
to do it in advance and separately from other changes.
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
drivers/gpio/gpiolib.h | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpio/gpiolib.h b/drivers/gpio/gpiolib.h
index 14e6a9807a89da6d7c6594a0a2de5f5032c49e0d..c9de4bb10584206f4888c0f28468762a3680aae6 100644
--- a/drivers/gpio/gpiolib.h
+++ b/drivers/gpio/gpiolib.h
@@ -204,6 +204,7 @@ struct gpio_desc {
#define GPIOD_FLAG_EDGE_FALLING 17 /* GPIO CDEV detects falling edge events */
#define GPIOD_FLAG_EVENT_CLOCK_REALTIME 18 /* GPIO CDEV reports REALTIME timestamps in events */
#define GPIOD_FLAG_EVENT_CLOCK_HTE 19 /* GPIO CDEV reports hardware timestamps in events */
+#define GPIOD_FLAG_SHARED 20 /* GPIO is shared by multiple consumers */
/* Connection label */
struct gpio_desc_label __rcu *label;
--
2.48.1
next prev parent reply other threads:[~2025-10-29 11:21 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-29 11:20 [PATCH v3 00/10] gpio: improve support for shared GPIOs Bartosz Golaszewski
2025-10-29 11:20 ` [PATCH v3 01/10] string: provide strends() Bartosz Golaszewski
2025-10-29 11:41 ` Andy Shevchenko
2025-10-29 12:36 ` Bartosz Golaszewski
2025-10-29 15:20 ` Andy Shevchenko
2025-10-29 11:20 ` Bartosz Golaszewski [this message]
2025-11-11 10:39 ` [PATCH v3 02/10] gpiolib: define GPIOD_FLAG_SHARED Linus Walleij
2025-10-29 11:20 ` [PATCH v3 03/10] gpiolib: implement low-level, shared GPIO support Bartosz Golaszewski
2025-10-29 11:44 ` Andy Shevchenko
2025-10-29 12:39 ` Bartosz Golaszewski
2025-10-29 15:18 ` Andy Shevchenko
2025-10-29 15:57 ` Bartosz Golaszewski
2025-10-30 9:30 ` Andy Shevchenko
2025-11-11 10:41 ` Linus Walleij
2025-10-29 11:20 ` [PATCH v3 04/10] gpio: shared-proxy: implement the shared GPIO proxy driver Bartosz Golaszewski
2025-11-11 10:43 ` Linus Walleij
2025-10-29 11:20 ` [PATCH v3 05/10] gpiolib: support shared GPIOs in core subsystem code Bartosz Golaszewski
2025-11-11 10:43 ` Linus Walleij
2025-10-29 11:20 ` [PATCH v3 06/10] gpio: provide gpiod_is_shared() Bartosz Golaszewski
2025-10-29 11:20 ` [PATCH v3 07/10] arm64: select HAVE_SHARED_GPIOS for ARCH_QCOM Bartosz Golaszewski
2025-10-29 11:20 ` [PATCH v3 08/10] ASoC: wsa881x: drop GPIOD_FLAGS_BIT_NONEXCLUSIVE flag from GPIO lookup Bartosz Golaszewski
2025-10-29 11:20 ` [PATCH v3 09/10] ASoC: wsa883x: " Bartosz Golaszewski
2025-10-29 11:20 ` [PATCH v3 10/10] regulator: make the subsystem aware of shared GPIOs Bartosz Golaszewski
2025-10-29 11:54 ` Andy Shevchenko
2025-10-29 12:41 ` Bartosz Golaszewski
2025-10-29 15:21 ` Andy Shevchenko
2025-11-10 9:45 ` [PATCH v3 00/10] gpio: improve support for " Bartosz Golaszewski
2025-11-11 10:46 ` Linus Walleij
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20251029-gpio-shared-v3-2-71c568acf47c@linaro.org \
--to=brgl@bgdev.pl \
--cc=akpm@linux-foundation.org \
--cc=alexey.klimov@linaro.org \
--cc=andy@kernel.org \
--cc=bartosz.golaszewski@linaro.org \
--cc=broonie@kernel.org \
--cc=catalin.marinas@arm.com \
--cc=conor+dt@kernel.org \
--cc=dmitry.torokhov@gmail.com \
--cc=gregkh@linuxfoundation.org \
--cc=kees@kernel.org \
--cc=krzk+dt@kernel.org \
--cc=lgirdwood@gmail.com \
--cc=linus.walleij@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-gpio@vger.kernel.org \
--cc=linux-hardening@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-sound@vger.kernel.org \
--cc=mani@kernel.org \
--cc=perex@perex.cz \
--cc=robh@kernel.org \
--cc=saravanak@google.com \
--cc=srini@kernel.org \
--cc=tiwai@suse.com \
--cc=westeri@kernel.org \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).