gpio: add bt8xxgpio driver

This adds the bt8xxgpio driver.  The purpose of the bt8xxgpio driver is to
export all of the 24 GPIO pins available on Brooktree 8xx chips to the
kernel GPIO infrastructure.

This makes it possible to use a physically modified BT8xx card as
cheap digital GPIO card.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: David Brownell <david-b@pacbell.net>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index be05ef9b7b42..4cbf6016a9b9 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1043,6 +1043,12 @@ M:	fujita.tomonori@lab.ntt.co.jp
 L:      linux-scsi@vger.kernel.org
 S:      Supported
 
+BT8XXGPIO DRIVER
+P:      Michael Buesch
+M:      mb@bu3sch.de
+W:      http://bu3sch.de/btgpio.php
+S:      Maintained
+
 BTTV VIDEO4LINUX DRIVER
 P:      Mauro Carvalho Chehab
 M:      mchehab@infradead.org