regulator: tps65023: Fixes i2c configuration issues

Allow i2c core voltage adjustments by clearing CORE ADJ Allowed bit in CTRL2

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c
index 701a5900f83f..a81abd4871ba 100644
--- a/drivers/regulator/tps65023-regulator.c
+++ b/drivers/regulator/tps65023-regulator.c
@@ -63,6 +63,13 @@
 #define TPS65023_REG_CTRL_LDO2_EN       BIT(2)
 #define TPS65023_REG_CTRL_LDO1_EN       BIT(1)
 
+/* REG_CTRL2 bitfields */
+#define TPS65023_REG_CTRL2_GO           BIT(7)
+#define TPS65023_REG_CTRL2_CORE_ADJ     BIT(6)
+#define TPS65023_REG_CTRL2_DCDC2        BIT(2)
+#define TPS65023_REG_CTRL2_DCDC1        BIT(2)
+#define TPS65023_REG_CTRL2_DCDC3        BIT(0)
+
 /* LDO_CTRL bitfields */
 #define TPS65023_LDO_CTRL_LDOx_SHIFT(ldo_id)    ((ldo_id)*4)
 #define TPS65023_LDO_CTRL_LDOx_MASK(ldo_id)     (0xF0 >> ((ldo_id)*4))
@@ -475,6 +482,10 @@ static int __devinit tps_65023_probe(struct i2c_client *client,
 
         i2c_set_clientdata(client, tps);
 
+        /* Enable setting output voltage by I2C */
+        tps_65023_clear_bits(tps, TPS65023_REG_CON_CTRL2,
+                                                TPS65023_REG_CTRL2_CORE_ADJ);
+
         return 0;
 
  fail: