[ARM] 4947/1: htc-egpio, a driver for GPIO/IRQ expanders with fixed input/output pins

implemented in CPLD chips on several HTC devices.

The original driver was written by Kevin O'Connor, I have adapted it to
use gpiolib and made the bus/register widths configurable.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 0c886c882385..284b2dc03444 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -22,6 +22,14 @@ config MFD_ASIC3
           This driver supports the ASIC3 multifunction chip found on many
           PDAs (mainly iPAQ and HTC based ones)
 
+config HTC_EGPIO
+        bool "HTC EGPIO support"
+        depends on GENERIC_HARDIRQS && HAVE_GPIO_LIB
+        help
+            This driver supports the CPLD egpio chip present on
+            several HTC phones.  It provides basic support for input
+            pins, output pins, and irqs.
+
 endmenu
 
 menu "Multimedia Capabilities Port drivers"