hwmon: add max1111 Low-power Multichannel Serial 8-bit ADCs

Driver based on corgi_ssp.c and sharpsl_pm.c, previously done by Richard
Purdie and many others.

Now changed to generic HWMON device and expose all the ADC input value
through sysfs.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index d402e8d..3309e86 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -540,6 +540,15 @@
 	  This driver can also be built as a module.  If so, the module
 	  will be called lm93.
 
+config SENSORS_MAX1111
+	tristate "Maxim MAX1111 Multichannel, Serial 8-bit ADC chip"
+	depends on SPI_MASTER
+	help
+	  Say y here to support Maxim's MAX1111 ADC chips.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called max1111.
+
 config SENSORS_MAX1619
 	tristate "Maxim MAX1619 sensor chip"
 	depends on I2C