[PATCH 2/2] regulator: max8973: Implement callback to get vsel and mask

[Laxman Dewangan <ldewangan@nvidia.com>]

Implement callback API to get the current voltage selection
register and its voltage mask value.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
---
 drivers/regulator/max8973-regulator.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c
index 00cf91c..b0f4f58 100644
--- a/drivers/regulator/max8973-regulator.c
+++ b/drivers/regulator/max8973-regulator.c
@@ -199,6 +199,16 @@ static int max8973_dcdc_set_voltage_sel(struct regulator_dev *rdev,
 	return 0;
 }
 
+static int max8973_dcdc_get_voltage_sel_register(struct regulator_dev *rdev,
+		unsigned *vsel_reg, unsigned *vsel_mask)
+{
+	struct max8973_chip *max = rdev_get_drvdata(rdev);
+
+	*vsel_reg = max->curr_vout_reg;
+	*vsel_mask = MAX8973_VOUT_MASK;
+	return 0;
+}
+
 static int max8973_dcdc_set_mode(struct regulator_dev *rdev, unsigned int mode)
 {
 	struct max8973_chip *max = rdev_get_drvdata(rdev);
@@ -247,6 +257,7 @@ static const struct regulator_ops max8973_dcdc_ops = {
 	.get_voltage_sel	= max8973_dcdc_get_voltage_sel,
 	.set_voltage_sel	= max8973_dcdc_set_voltage_sel,
 	.list_voltage		= regulator_list_voltage_linear,
+	.get_voltage_sel_register = max8973_dcdc_get_voltage_sel_register,
 	.set_mode		= max8973_dcdc_set_mode,
 	.get_mode		= max8973_dcdc_get_mode,
 };
-- 
2.1.4