summaryrefslogtreecommitdiffstats
path: root/drivers/gpio/Kconfig
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpio/Kconfig')
-rw-r--r--drivers/gpio/Kconfig32
1 files changed, 32 insertions, 0 deletions
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