gpio: Add support for Intel ICHx/3100/Series[56] GPIO

This driver works on many Intel chipsets, including the ICH6, ICH7,
ICH8, ICH9, ICH10, 3100, Series 5/3400 (Ibex Peak), Series 6/C200
(Cougar Point), and NM10 (Tiger Point).

Additional Intel chipsets should be easily supported if needed, eg the
ICH1-5, EP80579, etc.

Tested on QM67 (Cougar Point), QM57 (Ibex Peak), 3100 (Whitmore Lake),
and NM10 (Tiger Point).

Includes work from Jean Delvare:
        - Resource leak removal during module load/unload
        - GPIO API bit value enforcement

Also includes code cleanup from Guenter Roeck and Grant Likely.

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/MAINTAINERS b/MAINTAINERS
index bb76fc42fc42..28ebbb591423 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3340,6 +3340,12 @@ W:	http://www.developer.ibm.com/welcome/netfinity/serveraid.html
 S:      Supported
 F:      drivers/scsi/ips.*
 
+ICH LPC AND GPIO DRIVER
+M:      Peter Tyser <ptyser@xes-inc.com>
+S:      Maintained
+F:      drivers/mfd/lpc_ich.c
+F:      drivers/gpio/gpio-ich.c
+
 IDE SUBSYSTEM
 M:      "David S. Miller" <davem@davemloft.net>
 L:      linux-ide@vger.kernel.org