Add is_enabled interface for anatop regulator in case
some drivers need to know regulator's status.
Signed-off-by: Anson Huang <b20...@freescale.com>
---
drivers/regulator/anatop-regulator.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/regulator/anatop-regulator.c
b/drivers/regulator/anatop-regulator.c
index c734d09..770d836 100644
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -97,10 +97,25 @@ static int anatop_regmap_get_voltage_sel(struct
regulator_dev *reg)
return regulator_get_voltage_sel_regmap(reg);
}
+static int anatop_regmap_is_enabled(struct regulator_dev *reg)
+{
+ struct anatop_regulator *anatop_reg = rdev_get_drvdata(reg);
+ u32 val;
+
+ if (!anatop_reg->control_reg)
+ return -ENOTSUPP;
+
+ regmap_read(anatop_reg->anatop, anatop_reg->control_reg, &val);
+
+ return (val >> anatop_reg->vol_bit_shift) &
+ ((1 << anatop_reg->vol_bit_width) - 1) ? 1 : 0;
+}
+
static struct regulator_ops anatop_rops = {
.set_voltage_sel = anatop_regmap_set_voltage_sel,
.set_voltage_time_sel = anatop_regmap_set_voltage_time_sel,
.get_voltage_sel = anatop_regmap_get_voltage_sel,
+ .is_enabled = anatop_regmap_is_enabled,
.list_voltage = regulator_list_voltage_linear,
.map_voltage = regulator_map_voltage_linear,
};
--
1.7.9.5
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