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>
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 v2 02/10] gpiolib: define GPIOD_FLAG_SHARED
Date: Wed, 22 Oct 2025 15:10:41 +0200 [thread overview]
Message-ID: <20251022-gpio-shared-v2-2-d34aa1fbdf06@linaro.org> (raw)
In-Reply-To: <20251022-gpio-shared-v2-0-d34aa1fbdf06@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 b4c5369f8a3314244424d0c90ba006f7568b314e..ae9aa145ca055c08dad55a537567a27de57f7066 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:[~2025-10-22 13:11 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-22 13:10 [PATCH v2 00/10] gpio: improve support for shared GPIOs Bartosz Golaszewski
2025-10-22 13:10 ` [PATCH v2 01/10] string: provide strends() Bartosz Golaszewski
2025-10-22 13:33 ` Andy Shevchenko
2025-10-22 13:40 ` Bartosz Golaszewski
2025-10-22 15:23 ` Andy Shevchenko
2025-10-22 15:25 ` Andy Shevchenko
2025-10-22 15:36 ` Bartosz Golaszewski
2025-10-22 17:12 ` Andy Shevchenko
2025-10-23 18:43 ` Bartosz Golaszewski
2025-10-22 13:10 ` Bartosz Golaszewski [this message]
2025-10-22 13:10 ` [PATCH v2 03/10] gpiolib: implement low-level, shared GPIO support Bartosz Golaszewski
2025-10-22 17:34 ` Andy Shevchenko
2025-10-23 18:55 ` Bartosz Golaszewski
2025-10-24 7:09 ` Andy Shevchenko
2025-10-22 13:10 ` [PATCH v2 04/10] gpio: shared-proxy: implement the shared GPIO proxy driver Bartosz Golaszewski
2025-10-22 18:04 ` Andy Shevchenko
2025-10-24 7:03 ` Bartosz Golaszewski
2025-10-22 13:10 ` [PATCH v2 05/10] gpiolib: support shared GPIOs in core subsystem code Bartosz Golaszewski
2025-10-22 13:10 ` [PATCH v2 06/10] gpio: provide gpiod_is_shared() Bartosz Golaszewski
2025-10-22 13:10 ` [PATCH v2 07/10] arm64: select HAVE_SHARED_GPIOS for ARCH_QCOM Bartosz Golaszewski
2025-10-22 13:10 ` [PATCH v2 08/10] ASoC: wsa881x: drop GPIOD_FLAGS_BIT_NONEXCLUSIVE flag from GPIO lookup Bartosz Golaszewski
2025-10-24 15:46 ` Mark Brown
2025-10-24 23:32 ` Alexey Klimov
2025-10-22 13:10 ` [PATCH v2 09/10] ASoC: wsa883x: " Bartosz Golaszewski
2025-10-24 15:46 ` Mark Brown
2025-10-22 13:10 ` [PATCH v2 10/10] regulator: make the subsystem aware of shared GPIOs Bartosz Golaszewski
2025-10-24 15:57 ` Mark Brown
2025-10-24 7:17 ` [PATCH v2 00/10] gpio: improve support for " Péter Ujfalusi
2025-10-24 7:20 ` Bartosz Golaszewski
2025-10-24 7:32 ` Péter Ujfalusi
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