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-rw-r--r--drivers/gpio/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 2f2a3b86b985..bf48c74ba4a0 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -444,6 +444,17 @@ config GPIO_ADP5588_IRQ
Say yes here to enable the adp5588 to be used as an interrupt
controller. It requires the driver to be built in the kernel.
+config GPIO_ADNP
+ tristate "Avionic Design N-bit GPIO expander"
+ depends on I2C && OF
+ help
+ This option enables support for N GPIOs found on Avionic Design
+ I2C GPIO expanders. The register space will be extended by powers
+ of two, so the controller will need to accomodate for that. For
+ example: if a controller provides 48 pins, 6 registers will be
+ enough to represent all pins, but the driver will assume a
+ register layout for 64 pins (8 registers).
+
comment "PCI GPIO expanders:"
config GPIO_CS5535