mfd: PCF50633 adc driver

This patch adds basic support for the PCF50633 ADC. The subtractive mode
is not supported yet.

Since we don't have adc subsystem, it currently lives in drivers/mfd.

Signed-off-by: Balaji Rao <balajirrao@openmoko.org>
Cc: Andy Green <andy@openmoko.com>
Acked-by: Jonathan Cameron <jonathan.cameron@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@openedhand.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 3ac32e45b03b..2fa3504e165a 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -226,6 +226,13 @@ config MFD_PCF50633
           facilities, and registers devices for the various functions
           so that function-specific drivers can bind to them.
 
+config PCF50633_ADC
+        tristate "Support for NXP PCF50633 ADC"
+        depends on MFD_PCF50633
+        help
+         Say yes here if you want to include support for ADC in the
+         NXP PCF50633 chip.
+
 endmenu
 
 menu "Multimedia Capabilities Port drivers"