[ARM] 4964/1: htc-pasic3: MFD driver for PASIC3 LED control + DS1WM chip

This driver will provide registers, clocks and GPIOs of
the HTC PASIC3 (AIC3) and PASIC2 (AIC2) chips to the
ds1wm and leds-pasic3 drivers.

Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 284b2dc..2566479 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -30,6 +30,14 @@
 	    several HTC phones.  It provides basic support for input
 	    pins, output pins, and irqs.
 
+config HTC_PASIC3
+	tristate "HTC PASIC3 LED/DS1WM chip support"
+	help
+	  This core driver provides register access for the LED/DS1WM
+	  chips labeled "AIC2" and "AIC3", found on HTC Blueangel and
+	  HTC Magician devices, respectively. Actual functionality is
+	  handled by the leds-pasic3 and ds1wm drivers.
+
 endmenu
 
 menu "Multimedia Capabilities Port drivers"