mfd: LP3974 PMIC support

LP3974 PMIC support. It has same functionality as max8998.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

2 files changed, 9 insertions, 7 deletions

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index b3aedaaa7092..02cd6c0e59cb 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -294,14 +294,15 @@ config MFD_MAX8925
           to use the functionality of the device.
 
 config MFD_MAX8998
-        bool "Maxim Semiconductor MAX8998 PMIC Support"
+        bool "Maxim Semiconductor MAX8998/National LP3974 PMIC Support"
         depends on I2C=y
         select MFD_CORE
         help
-          Say yes here to support for Maxim Semiconductor MAX8998. This is
-          a Power Management IC. This driver provies common support for
-          accessing the device, additional drivers must be enabled in order
-          to use the functionality of the device.
+          Say yes here to support for Maxim Semiconductor MAX8998 and
+          National Semiconductor LP3974. This is a Power Management IC.
+          This driver provies common support for accessing the device,
+          additional drivers must be enabled in order to use the functionality
+          of the device.
 
 config MFD_WM8400
         tristate "Support Wolfson Microelectronics WM8400"
diff --git a/drivers/mfd/max8998.c b/drivers/mfd/max8998.c
index 73e6f5c4efc9..f1c928915880 100644
--- a/drivers/mfd/max8998.c
+++ b/drivers/mfd/max8998.c
@@ -125,8 +125,9 @@ static int max8998_i2c_remove(struct i2c_client *i2c)
 }
 
 static const struct i2c_device_id max8998_i2c_id[] = {
-       { "max8998", 0 },
-       { }
+        { "max8998", 0 },
+        { "lp3974", 0 },
+        { }
 };
 MODULE_DEVICE_TABLE(i2c, max8998_i2c_id);