regulator: core: add regulator_get_linear_step()
Add regulator_get_linear_step(), which returns the voltage step size
between VSEL values for linear regulators. This is intended for use
by regulator consumers which build their own voltage-to-VSEL tables.
Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com>
Reviewed-by: Andrew Chew <achew@nvidia.com>
Cc: Matthew Longnecker <mlongnecker@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index 145022a..3a76389 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -165,6 +165,7 @@
int regulator_list_voltage(struct regulator *regulator, unsigned selector);
int regulator_is_supported_voltage(struct regulator *regulator,
int min_uV, int max_uV);
+unsigned int regulator_get_linear_step(struct regulator *regulator);
int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV);
int regulator_set_voltage_time(struct regulator *regulator,
int old_uV, int new_uV);