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regulator: introduce min_dropout_uV

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Many voltage Regulators need a input voltage that is higher than the
output voltage. Allow to specify a minimum dropout voltage which will
be used later to find the best input voltage for regulators.

[Changed uv to uV for consistency and legibility -- broonie]

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Sascha Hauer 2015-10-13 12:45:26 +02:00 committed by Mark Brown
parent 6ff33f3902
commit 5abe4f223e
1 changed files with 2 additions and 0 deletions
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2
include/linux/regulator/driver.h
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@ -245,6 +245,7 @@ enum regulator_type {
* @linear_min_sel: Minimal selector for starting linear mapping
* @fixed_uV: Fixed voltage of rails.
* @ramp_delay: Time to settle down after voltage change (unit: uV/us)
* @min_dropout_uV: The minimum dropout voltage this regulator can handle
* @linear_ranges: A constant table of possible voltage ranges.
* @n_linear_ranges: Number of entries in the @linear_ranges table.
* @volt_table: Voltage mapping table (if table based mapping)
@ -292,6 +293,7 @@ struct regulator_desc {
unsigned int linear_min_sel;
int fixed_uV;
unsigned int ramp_delay;
int min_dropout_uV;
const struct regulator_linear_range *linear_ranges;
int n_linear_ranges;