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regulator: core: add regulator_get_linear_step()

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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>
This commit is contained in:
Paul Walmsley
2013-06-07 08:06:56 +00:00
committed by Mark Brown
parent d683b96b07
commit 2a668a8bc2
2 changed files with 16 additions and 0 deletions
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include/linux/regulator/consumer.h
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@@ -165,6 +165,7 @@ int regulator_count_voltages(struct regulator *regulator);
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);