mfd: Add tps6507x board data structure

Add mfd structure which refrences sub-driver initialization data. For example,
for a giving hardware implementation, the voltage regulator sub-driver
initialization data provides the mapping betten a voltage regulator and what
the output voltage is being used for.

Signed-off-by: Todd Fischer <todd.fischer@ridgerun.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 12 insertions, 2 deletions

diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c
index 23c0597ab1f5..c3f1bf822fd0 100644
--- a/drivers/regulator/tps6507x-regulator.c
+++ b/drivers/regulator/tps6507x-regulator.c
@@ -489,6 +489,7 @@ static int __devinit tps_6507x_probe(struct i2c_client *client,
         struct regulator_init_data *init_data;
         struct regulator_dev *rdev;
         struct tps_pmic *tps;
+        struct tps6507x_board *tps_board;
         int i;
         int error;
 
@@ -497,12 +498,21 @@ static int __devinit tps_6507x_probe(struct i2c_client *client,
                 return -EIO;
 
         /**
+         * tps_board points to pmic related constants
+         * coming from the board-evm file.
+         */
+
+        tps_board = dev_get_platdata(&client->dev);
+        if (!tps_board)
+                return -EINVAL;
+
+        /**
          * init_data points to array of regulator_init structures
          * coming from the board-evm file.
          */
-        init_data = client->dev.platform_data;
+        init_data = tps_board->tps6507x_pmic_init_data;
         if (!init_data)
-                return -EIO;
+                return -EINVAL;
 
         tps = kzalloc(sizeof(*tps), GFP_KERNEL);
         if (!tps)