[PATCH v4 02/10] gpiolib: define GPIOD_FLAG_SHARED

Bartosz Golaszewski
2025-11-12T13:55:43Z

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.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
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;

--
2.51.0