Extern or forward variable declaration at include/linux/gpio/driver.h, line 17 References: drivers/gpio/gpio-adnp.c, line 182 drivers/gpio/gpio-crystalcove.c, line 296 drivers/gpio/gpio-mockup.c, line 264 drivers/gpio/gpio-mockup.c, line 289 drivers/gpio/gpio-mvebu.c, line 890 drivers/gpio/gpio-stmpe.c, line 250 drivers/gpio/gpio-stmpe.c, line 349 drivers/gpio/gpio-tegra.c, line 610 drivers/gpio/gpio-wcove.c, line 367 drivers/gpio/gpio-wm831x.c, line 154 drivers/gpio/gpiolib.c, line 4297 drivers/gpio/gpiolib.c, line 4330 drivers/gpio/gpiolib.c, line 4349 drivers/gpio/gpiolib.c, line 4368 drivers/gpio/gpiolib.c, line 4372 drivers/gpu/drm/bridge/ti-sn65dsi86.c, line 347 drivers/gpu/drm/sti/sti_dvo.c, line 166 drivers/gpu/drm/sti/sti_dvo.c, line 179 drivers/gpu/drm/vc4/vc4_hdmi.c, line 105 drivers/mmc/host/atmel-mci.c, line 409 drivers/mmc/host/atmel-mci.c, line 451 drivers/mmc/host/atmel-mci.c, line 497 drivers/mmc/host/dw_mmc.c, line 107 drivers/mmc/host/dw_mmc.c, line 148 drivers/net/ieee802154/at86rf230.c, line 1612 drivers/pci/controller/dwc/pcie-tegra194.c, line 630 drivers/pinctrl/actions/pinctrl-owl.c, line 120 drivers/pinctrl/bcm/pinctrl-bcm2835.c, line 707 drivers/pinctrl/core.c, line 1623 drivers/pinctrl/core.c, line 1682 drivers/pinctrl/core.c, line 1728 drivers/pinctrl/core.c, line 1762 drivers/pinctrl/core.c, line 1805 drivers/pinctrl/core.c, line 1843 drivers/pinctrl/intel/pinctrl-baytrail.c, line 1229 drivers/pinctrl/intel/pinctrl-cherryview.c, line 641 drivers/pinctrl/intel/pinctrl-intel.c, line 295 drivers/pinctrl/intel/pinctrl-lynxpoint.c, line 301 drivers/pinctrl/intel/pinctrl-merrifield.c, line 536 drivers/pinctrl/mediatek/pinctrl-paris.c, line 638 drivers/pinctrl/meson/pinctrl-meson.c, line 134 drivers/pinctrl/mvebu/pinctrl-mvebu.c, line 195 drivers/pinctrl/nomadik/pinctrl-nomadik.c, line 914 drivers/pinctrl/nomadik/pinctrl-nomadik.c, line 991 drivers/pinctrl/nomadik/pinctrl-nomadik.c, line 1003 drivers/pinctrl/nomadik/pinctrl-nomadik.c, line 1221 drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c, line 130 drivers/pinctrl/nuvoton/pinctrl-npcm7xx.c, line 1555 drivers/pinctrl/pinctrl-amd.c, line 197 drivers/pinctrl/pinctrl-at91-pio4.c, line 906 drivers/pinctrl/pinctrl-at91.c, line 265 drivers/pinctrl/pinctrl-at91.c, line 1080 drivers/pinctrl/pinctrl-at91.c, line 1109 drivers/pinctrl/pinctrl-at91.c, line 1488 drivers/pinctrl/pinctrl-st.c, line 997 drivers/pinctrl/pinctrl-stmfx.c, line 347 drivers/pinctrl/qcom/pinctrl-lpass-lpi.c, line 525 drivers/pinctrl/qcom/pinctrl-lpass-lpi.c, line 560 drivers/pinctrl/qcom/pinctrl-msm.c, line 594 drivers/pinctrl/qcom/pinctrl-msm.c, line 649 drivers/pinctrl/qcom/pinctrl-spmi-gpio.c, line 620 drivers/pinctrl/qcom/pinctrl-spmi-gpio.c, line 753 drivers/pinctrl/qcom/pinctrl-spmi-mpp.c, line 514 drivers/pinctrl/qcom/pinctrl-spmi-mpp.c, line 635 drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c, line 539 drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c, line 578 drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c, line 542 drivers/pinctrl/qcom/pinctrl-ssbi-mpp.c, line 622 drivers/pinctrl/samsung/pinctrl-samsung.c, line 291 drivers/pinctrl/spear/pinctrl-spear.c, line 141 drivers/pinctrl/stm32/pinctrl-stm32.c, line 1147 drivers/usb/gadget/udc/at91_udc.c, line 105 drivers/usb/gadget/udc/at91_udc.c, line 163 drivers/usb/gadget/udc/at91_udc.c, line 182 drivers/usb/gadget/udc/pxa27x_udc.c, line 90 drivers/usb/gadget/udc/pxa27x_udc.c, line 136 drivers/usb/gadget/udc/pxa27x_udc.c, line 169 include/linux/gpio/driver.h, line 17 include/linux/gpio/driver.h, line 390