Function prototype or declaration at include/linux/gpio/driver.h, line 743 References: drivers/gpio/gpio-bcm-kona.c, line 489 drivers/gpio/gpio-dwapb.c, line 260 drivers/gpio/gpio-em.c, line 105 drivers/gpio/gpio-tegra.c, line 326 drivers/gpio/gpio-thunderx.c, line 369 drivers/gpio/gpio-uniphier.c, line 313 drivers/gpio/gpio-vr41xx.c, line 141 drivers/gpio/gpio-xgene-sb.c, line 148 drivers/gpio/gpiolib-acpi.c, line 302 drivers/gpio/gpiolib-sysfs.c, line 195 drivers/gpio/gpiolib.c, line 2235 drivers/gpio/gpiolib.c, line 4006 drivers/gpio/gpiolib.c, line 4048 drivers/gpio/gpiolib.c, line 4113 drivers/hid/hid-cp2112.c, line 1208 drivers/pinctrl/mediatek/mtk-eint.c, line 246 drivers/pinctrl/pinctrl-st.c, line 1294 drivers/pinctrl/samsung/pinctrl-exynos.c, line 155 drivers/pinctrl/stm32/pinctrl-stm32.c, line 252 drivers/pinctrl/sunxi/pinctrl-sunxi.c, line 813 include/linux/gpio/driver.h, line 743 include/linux/gpio/driver.h, line 758