1# 2# GPIO infrastructure and drivers 3# 4 5menu "GPIO Support" 6 7config DM_GPIO 8 bool "Enable Driver Model for GPIO drivers" 9 depends on DM 10 help 11 Enable driver model for GPIO access. The standard GPIO 12 interface (gpio_get_value(), etc.) is then implemented by 13 the GPIO uclass. Drivers provide methods to query the 14 particular GPIOs that they provide. The uclass interface 15 is defined in include/asm-generic/gpio.h. 16 17config LPC32XX_GPIO 18 bool "LPC32XX GPIO driver" 19 depends on DM 20 default n 21 help 22 Support for the LPC32XX GPIO driver. 23 24config SANDBOX_GPIO 25 bool "Enable sandbox GPIO driver" 26 depends on SANDBOX && DM && DM_GPIO 27 help 28 This driver supports some simulated GPIOs which can be adjusted 29 using 'back door' functions like sandbox_gpio_set_value(). Then the 30 GPIOs can be inspected through the normal get_get_value() 31 interface. The purpose of this is to allow GPIOs to be used as 32 normal in sandbox, perhaps with test code actually driving the 33 behaviour of those GPIOs. 34 35config SANDBOX_GPIO_COUNT 36 int "Number of sandbox GPIOs" 37 depends on SANDBOX_GPIO 38 default 128 39 help 40 The sandbox driver can support any number of GPIOs. Generally these 41 are specified using the device tree. But you can also have a number 42 of 'anonymous' GPIOs that do not belong to any device or bank. 43 Select a suitable value depending on your needs. 44 45config VYBRID_GPIO 46 bool "Vybrid GPIO driver" 47 depends on DM 48 default n 49 help 50 Say yes here to support Vybrid vf610 GPIOs. 51 52endmenu 53