sm501: add gpiolib support

Add support for exporting the GPIOs on the SM501 via gpiolib.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Cc: Arnaud Patard <apatard@mandriva.com>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 9f93c29fed35..bac9e973ece0 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -19,6 +19,14 @@ config MFD_SM501
           interface. The device may be connected by PCI or local bus with
           varying functions enabled.
 
+config MFD_SM501_GPIO
+        bool "Export GPIO via GPIO layer"
+        depends on MFD_SM501 && HAVE_GPIO_LIB
+         ---help---
+         This option uses the gpio library layer to export the 64 GPIO
+         lines on the SM501. The platform data is used to supply the
+         base number for the first GPIO line to register.
+
 config MFD_ASIC3
         bool "Support for Compaq ASIC3"
         depends on GENERIC_HARDIRQS && HAVE_GPIO_LIB && ARM