/ reform / openbsd / reform-openbsd / doc / device-tree-bindings / gpio altera_pio bcm2835-gpio fsl,mpc83xx-spisel-boot gpio-max7320 gpio-msm gpio-pcf857x gpio-samsung gpio intel,apl-gpio intel,x86-broadwell-pinctrl intel,x86-pinctrl mscc_sgpio nvidia,tegra186-gpio nvidia,tegra20-gpio pm8916_gpio snps,creg-gpio