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regulator: gpio-regulator: Set the smallest voltage/current in the specified range

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Do not assume the gpio regulator states map is sorted in any order.
This patch ensures we always set the smallest voltage/current that falls within
the specified range.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Axel Lin 2012-03-22 14:08:04 +08:00 committed by Mark Brown
parent 9d442061da
commit 4dbd8f63f0
1 changed files with 4 additions and 4 deletions
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8
drivers/regulator/gpio-regulator.c
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@ -105,15 +105,15 @@ static int gpio_regulator_set_value(struct regulator_dev *dev,
int min, int max) int min, int max)
{ {
struct gpio_regulator_data *data = rdev_get_drvdata(dev); struct gpio_regulator_data *data = rdev_get_drvdata(dev);
int ptr, target, state; int ptr, target, state, best_val = INT_MAX;
target = -1;
for (ptr = 0; ptr < data->nr_states; ptr++) for (ptr = 0; ptr < data->nr_states; ptr++)
if (data->states[ptr].value >= min && if (data->states[ptr].value < best_val &&
data->states[ptr].value >= min &&
data->states[ptr].value <= max) data->states[ptr].value <= max)
target = data->states[ptr].gpios; target = data->states[ptr].gpios;
if (target < 0) if (best_val == INT_MAX)
return -EINVAL; return -EINVAL;
for (ptr = 0; ptr < data->nr_gpios; ptr++) { for (ptr = 0; ptr < data->nr_gpios; ptr++) {