# # GPIO infrastructure and drivers # menu "GPIO Support" config DM_GPIO bool "Enable Driver Model for GPIO drivers" depends on DM help Enable driver model for GPIO access. The standard GPIO interface (gpio_get_value(), etc.) is then implemented by the GPIO uclass. Drivers provide methods to query the particular GPIOs that they provide. The uclass interface is defined in include/asm-generic/gpio.h. config DWAPB_GPIO bool "DWAPB GPIO driver" depends on DM && DM_GPIO help Support for the Designware APB GPIO driver. config LPC32XX_GPIO bool "LPC32XX GPIO driver" depends on DM help Support for the LPC32XX GPIO driver. config SANDBOX_GPIO bool "Enable sandbox GPIO driver" depends on SANDBOX && DM && DM_GPIO help This driver supports some simulated GPIOs which can be adjusted using 'back door' functions like sandbox_gpio_set_value(). Then the GPIOs can be inspected through the normal get_get_value() interface. The purpose of this is to allow GPIOs to be used as normal in sandbox, perhaps with test code actually driving the behaviour of those GPIOs. config SANDBOX_GPIO_COUNT int "Number of sandbox GPIOs" depends on SANDBOX_GPIO default 128 help The sandbox driver can support any number of GPIOs. Generally these are specified using the device tree. But you can also have a number of 'anonymous' GPIOs that do not belong to any device or bank. Select a suitable value depending on your needs. config VYBRID_GPIO bool "Vybrid GPIO driver" depends on DM help Say yes here to support Vybrid vf610 GPIOs. endmenu