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authorAxel Lin <axel.lin@gmail.com>2012-03-22 14:08:04 +0800
committerMark Brown <broonie@opensource.wolfsonmicro.com>2012-04-01 11:59:26 +0100
commit4dbd8f63f07a9e945f053d61d6f313ad98dda39d (patch)
tree1cdcdb85ff4a5965e5d74333ecd6c1bb49f12def /drivers/regulator/gpio-regulator.c
parent9d442061da08e679ec8e7c004fd0450e799a2af7 (diff)
regulator: gpio-regulator: Set the smallest voltage/current in the specified range
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>
Diffstat (limited to 'drivers/regulator/gpio-regulator.c')
-rw-r--r--drivers/regulator/gpio-regulator.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index 42e1cb1835e..5f9b6add5d1 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -105,15 +105,15 @@ static int gpio_regulator_set_value(struct regulator_dev *dev,
int min, int max)
{
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++)
- if (data->states[ptr].value >= min &&
+ if (data->states[ptr].value < best_val &&
+ data->states[ptr].value >= min &&
data->states[ptr].value <= max)
target = data->states[ptr].gpios;
- if (target < 0)
+ if (best_val == INT_MAX)
return -EINVAL;
for (ptr = 0; ptr < data->nr_gpios; ptr++) {