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 DWAPB_GPIO 18 bool "DWAPB GPIO driver" 19 depends on DM && DM_GPIO 20 default n 21 help 22 Support for the Designware APB GPIO driver. 23 24config LPC32XX_GPIO 25 bool "LPC32XX GPIO driver" 26 depends on DM 27 default n 28 help 29 Support for the LPC32XX GPIO driver. 30 31config ROCKCHIP_GPIO 32 bool "Rockchip GPIO driver" 33 depends on DM_GPIO 34 help 35 Support GPIO access on Rockchip SoCs. The GPIOs are arranged into 36 a number of banks (different for each SoC type) each with 32 GPIOs. 37 The GPIOs for a device are defined in the device tree with one node 38 for each bank. 39 40config SANDBOX_GPIO 41 bool "Enable sandbox GPIO driver" 42 depends on SANDBOX && DM && DM_GPIO 43 help 44 This driver supports some simulated GPIOs which can be adjusted 45 using 'back door' functions like sandbox_gpio_set_value(). Then the 46 GPIOs can be inspected through the normal get_get_value() 47 interface. The purpose of this is to allow GPIOs to be used as 48 normal in sandbox, perhaps with test code actually driving the 49 behaviour of those GPIOs. 50 51config SANDBOX_GPIO_COUNT 52 int "Number of sandbox GPIOs" 53 depends on SANDBOX_GPIO 54 default 128 55 help 56 The sandbox driver can support any number of GPIOs. Generally these 57 are specified using the device tree. But you can also have a number 58 of 'anonymous' GPIOs that do not belong to any device or bank. 59 Select a suitable value depending on your needs. 60 61config VYBRID_GPIO 62 bool "Vybrid GPIO driver" 63 depends on DM 64 default n 65 help 66 Say yes here to support Vybrid vf610 GPIOs. 67 68endmenu 69