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-rw-r--r--drivers/gpio/Kconfig26
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index e37ac9f4941..f0439e24178 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -2,7 +2,19 @@
# GPIO infrastructure and drivers
#
-menu "GPIO Support"
+menuconfig GPIO
+ bool "GPIO support"
+ default y
+ help
+ Enable support for GPIOs (General-purpose Input/Output) in U-Boot.
+ GPIOs allow U-Boot to read the state of an input line (high or
+ low) and set the state of an output line. This can be used to
+ drive LEDs, control power to various system parts and read user
+ input. GPIOs can be useful to enable a 'sign-of-life' LED,
+ for example. Enable this option to build the drivers in
+ drivers/gpio as part of an U-Boot build.
+
+if GPIO
config DM_GPIO
bool "Enable Driver Model for GPIO drivers"
@@ -39,7 +51,6 @@ config TPL_DM_GPIO
config GPIO_HOG
bool "Enable GPIO hog support"
depends on DM_GPIO
- default n
help
Enable gpio hog support
The GPIO chip may contain GPIO hog definitions. GPIO hogging
@@ -91,13 +102,11 @@ config CORTINA_GPIO
config DWAPB_GPIO
bool "DWAPB GPIO driver"
depends on DM && DM_GPIO
- default n
help
Support for the Designware APB GPIO driver.
config AT91_GPIO
bool "AT91 PIO GPIO driver"
- default n
help
Say yes here to select AT91 PIO GPIO driver. AT91 PIO
controller manages up to 32 fully programmable input/output
@@ -110,7 +119,6 @@ config AT91_GPIO
config ATMEL_PIO4
bool "ATMEL PIO4 driver"
depends on DM_GPIO
- default n
help
Say yes here to support the Atmel PIO4 driver.
The PIO4 is new version of Atmel PIO controller, which manages
@@ -150,13 +158,11 @@ config INTEL_ICH6_GPIO
config IMX_RGPIO2P
bool "i.MX7ULP RGPIO2P driver"
depends on DM
- default n
help
This driver supports i.MX7ULP Rapid GPIO2P controller.
config IPROC_GPIO
bool "Broadcom iProc GPIO driver(without pinconf)"
- default n
help
The Broadcom iProc based SoCs- Cygnus, NS2, NS3, NSP and Stingray,
use the same GPIO Controller IP hence this driver could be used
@@ -168,14 +174,12 @@ config IPROC_GPIO
config HSDK_CREG_GPIO
bool "HSDK CREG GPIO griver"
depends on DM_GPIO
- default n
help
This driver supports CREG GPIOs on Synopsys HSDK SOC.
config LPC32XX_GPIO
bool "LPC32XX GPIO driver"
depends on DM
- default n
help
Support for the LPC32XX GPIO driver.
@@ -203,7 +207,6 @@ config MSCC_SGPIO
config MSM_GPIO
bool "Qualcomm GPIO driver"
depends on DM_GPIO
- default n
help
Support GPIO controllers on Qualcomm Snapdragon family of SoCs.
This controller have single bank (default name "soc"), every
@@ -345,7 +348,6 @@ config GPIO_UNIPHIER
config VYBRID_GPIO
bool "Vybrid GPIO driver"
depends on DM
- default n
help
Say yes here to support Vybrid vf610 GPIOs.
@@ -513,4 +515,4 @@ config NOMADIK_GPIO
into a number of banks each with 32 GPIOs. The GPIOs for a device are
defined in the device tree with one node for each bank.
-endmenu
+endif