#Letter#
#Device driver#
#SoC .dtsi file#
#Board .dts file#
#Pinctrl subsystem
core#
#pinctrl_desc#
#pinctrl_ops#
#pinmux_ops#
#pinconf_ops#
#List pins and pin groups#
#Control muxing of pins#
#Control configuration of pins#
#gpio_chip#
#irq_chip#
#SoC-specific pinctrl driver#
#Device driver#
#Device driver#
#GPIO
subsystem
core#
#IRQ
subsystem
core#
#Request pin muxing#
#Provides list of
pin groups#
#Provides associations
between pin groups
and devices#
#drivers/pinctrl/{core,devicetree,pinconf,pinmux}.c#
#drivers/pinctrl/pinctrl-*.c#
#drivers/gpio#
#kernel/irq#
#GPIO driver#
#drivers/gpio/gpio-*.c#