Commit 678bae2e authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Bartosz Golaszewski
Browse files

gpiolib: make legacy interfaces optional 



The traditional interfaces are only used on a small number of ancient
boards. Make these optional now so they can be disabled by default.

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Reviewed-by: default avatarAlexander Sverdlin <alexander.sverdlin@gmail.com>
Link: https://lore.kernel.org/r/20250722153634.3683927-1-arnd@kernel.org


Signed-off-by: default avatarBartosz Golaszewski <bartosz.golaszewski@linaro.org>
parent 8c7a8608

drivers/gpio/Kconfig

+3 −0
Original line number Diff line number Diff line
@@ -14,6 +14,9 @@ menuconfig GPIOLIB 


if GPIOLIB



config GPIOLIB_LEGACY

	def_bool y



config GPIOLIB_FASTPATH_LIMIT

	int "Maximum number of GPIOs for fast path"

	range 32 512

drivers/gpio/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -5,7 +5,7 @@ ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG 


obj-$(CONFIG_GPIOLIB)		+= gpiolib.o

obj-$(CONFIG_GPIOLIB)		+= gpiolib-devres.o

obj-$(CONFIG_GPIOLIB)		+= gpiolib-legacy.o

obj-$(CONFIG_GPIOLIB_LEGACY)	+= gpiolib-legacy.o

obj-$(CONFIG_OF_GPIO)		+= gpiolib-of.o

obj-$(CONFIG_GPIO_CDEV)		+= gpiolib-cdev.o

obj-$(CONFIG_GPIO_SYSFS)	+= gpiolib-sysfs.o

include/linux/gpio.h

+6 −4
Original line number Diff line number Diff line
@@ -13,6 +13,11 @@ 
#define __LINUX_GPIO_H



#include <linux/types.h>

#ifdef CONFIG_GPIOLIB

#include <linux/gpio/consumer.h>

#endif



#ifdef CONFIG_GPIOLIB_LEGACY



struct device;
@@ -22,9 +27,6 @@ struct device; 
#define GPIOF_OUT_INIT_HIGH	((0 << 0) | (1 << 1))



#ifdef CONFIG_GPIOLIB



#include <linux/gpio/consumer.h>



/*

 * "valid" GPIO numbers are nonnegative and may be passed to

 * setup routines like gpio_request().  Only some valid numbers
@@ -170,5 +172,5 @@ static inline int devm_gpio_request_one(struct device *dev, unsigned gpio, 
}



#endif /* ! CONFIG_GPIOLIB */



#endif /* CONFIG_GPIOLIB_LEGACY */

#endif /* __LINUX_GPIO_H */