diff options
| -rw-r--r-- | arch/arm/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/Kconfig | 2 | ||||
| -rw-r--r-- | drivers/Makefile | 1 | ||||
| -rw-r--r-- | drivers/gpio/Kconfig | 32 | ||||
| -rw-r--r-- | drivers/gpio/Makefile | 4 |
5 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 64d19eff3faa..a322f58cdc90 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1122,6 +1122,8 @@ source "drivers/i2c/Kconfig" source "drivers/spi/Kconfig" +source "drivers/gpio/Kconfig" + source "drivers/w1/Kconfig" source "drivers/power/Kconfig" diff --git a/drivers/Kconfig b/drivers/Kconfig index 3f8a231fe754..d74d9fbb9fd2 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -52,6 +52,8 @@ source "drivers/i2c/Kconfig" source "drivers/spi/Kconfig" +source "drivers/gpio/Kconfig" + source "drivers/w1/Kconfig" source "drivers/power/Kconfig" diff --git a/drivers/Makefile b/drivers/Makefile index 0ee9a8a4095e..f1c11db52a57 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -5,6 +5,7 @@ # Rewritten to use lists instead of if-statements. # +obj-$(CONFIG_HAVE_GPIO_LIB) += gpio/ obj-$(CONFIG_PCI) += pci/ obj-$(CONFIG_PARISC) += parisc/ obj-$(CONFIG_RAPIDIO) += rapidio/ diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig new file mode 100644 index 000000000000..560687c4667e --- /dev/null +++ b/drivers/gpio/Kconfig @@ -0,0 +1,32 @@ +# +# GPIO infrastructure and expanders +# + +config HAVE_GPIO_LIB + bool + help + Platforms select gpiolib if they use this infrastructure + for all their GPIOs, usually starting with ones integrated + into SOC processors. + +menu "GPIO Support" + depends on HAVE_GPIO_LIB + +config DEBUG_GPIO + bool "Debug GPIO calls" + depends on DEBUG_KERNEL + help + Say Y here to add some extra checks and diagnostics to GPIO calls. + The checks help ensure that GPIOs have been properly initialized + before they are used and that sleeping calls aren not made from + nonsleeping contexts. They can make bitbanged serial protocols + slower. The diagnostics help catch the type of setup errors + that are most common when setting up new platforms or boards. + +# put expanders in the right section, in alphabetical order + +comment "I2C GPIO expanders:" + +comment "SPI GPIO expanders:" + +endmenu diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile new file mode 100644 index 000000000000..369e4fc432e3 --- /dev/null +++ b/drivers/gpio/Makefile @@ -0,0 +1,4 @@ +# gpio support: dedicated expander chips, etc + +ccflags-$(CONFIG_DEBUG_GPIO) += -DDEBUG + |