Function prototype or declaration at include/linux/of_gpio.h, line 53 References: drivers/clk/clk-gpio.c, line 259 drivers/gpio/gpiolib-of.c, line 106 drivers/gpio/gpiolib-of.c, line 118 drivers/gpu/drm/tegra/output.c, line 126 drivers/gpu/drm/tilcdc/tilcdc_tfp410.c, line 343 drivers/gpu/drm/vc4/vc4_hdmi.c, line 1383 drivers/hwmon/gpio-fan.c, line 463 drivers/i2c/muxes/i2c-arb-gpio-challenge.c, line 142 drivers/i2c/muxes/i2c-arb-gpio-challenge.c, line 160 drivers/media/i2c/s5c73m3/s5c73m3-core.c, line 1587 drivers/media/i2c/s5k5baf.c, line 1828 drivers/mfd/stmpe.c, line 1292 drivers/net/ethernet/davicom/dm9000.c, line 1455 drivers/net/ethernet/micrel/ks8851.c, line 1410 drivers/net/phy/spi_ks8995.c, line 413 drivers/of/of_mdio.c, line 463 drivers/pci/host/pci-mvebu.c, line 1092 drivers/remoteproc/keystone_remoteproc.c, line 448 drivers/staging/fbtft/fbtft-core.c, line 178 drivers/tty/serial/omap-serial.c, line 1625 drivers/usb/gadget/udc/at91_udc.c, line 1809 drivers/usb/gadget/udc/at91_udc.c, line 1813 drivers/usb/gadget/udc/atmel_usba_udc.c, line 2081 drivers/usb/renesas_usbhs/common.c, line 516 drivers/video/fbdev/atmel_lcdfb.c, line 1076 include/linux/of_gpio.h, line 53 include/linux/of_gpio.h, line 73 include/linux/of_gpio.h, line 130 include/linux/of_gpio.h, line 145 sound/soc/codecs/ak4104.c, line 303 sound/soc/codecs/cs4270.c, line 685 sound/soc/generic/simple-card.c, line 82 sound/soc/tegra/tegra_rt5640.c, line 166