gpio/lynxpoint: add chipset gpio driver.
Add gpio support for Intel Lynxpoint chipset.
Lynxpoint supports 94 gpio pins which can generate interrupts.
Driver will fail requests for pins that are marked as owned by ACPI, or
set in an alternate mode (non-gpio).
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 682de75..3a67145 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -298,6 +298,14 @@
and write pin state) for GPIO implemented in a number of GE single
board computers.
+config GPIO_LYNXPOINT
+ bool "Intel Lynxpoint GPIO support"
+ depends on ACPI
+ select IRQ_DOMAIN
+ help
+ driver for GPIO functionality on Intel Lynxpoint PCH chipset
+ Requires ACPI device enumeration code to set up a platform device.
+
comment "I2C GPIO expanders:"
config GPIO_ARIZONA