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path: root/drivers/regulator/gpio-regulator.c
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Diffstat (limited to 'drivers/regulator/gpio-regulator.c')
-rw-r--r--drivers/regulator/gpio-regulator.c22
1 files changed, 12 insertions, 10 deletions
diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index 42e1cb1835e5..9997d7aaca84 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -30,7 +30,6 @@
#include <linux/regulator/machine.h>
#include <linux/regulator/gpio-regulator.h>
#include <linux/gpio.h>
-#include <linux/delay.h>
#include <linux/slab.h>
struct gpio_regulator_data {
@@ -105,15 +104,15 @@ 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++) {
@@ -172,9 +171,11 @@ static int __devinit gpio_regulator_probe(struct platform_device *pdev)
{
struct gpio_regulator_config *config = pdev->dev.platform_data;
struct gpio_regulator_data *drvdata;
+ struct regulator_config cfg = { };
int ptr, ret, state;
- drvdata = kzalloc(sizeof(struct gpio_regulator_data), GFP_KERNEL);
+ drvdata = devm_kzalloc(&pdev->dev, sizeof(struct gpio_regulator_data),
+ GFP_KERNEL);
if (drvdata == NULL) {
dev_err(&pdev->dev, "Failed to allocate device data\n");
return -ENOMEM;
@@ -283,8 +284,11 @@ static int __devinit gpio_regulator_probe(struct platform_device *pdev)
}
drvdata->state = state;
- drvdata->dev = regulator_register(&drvdata->desc, &pdev->dev,
- config->init_data, drvdata, NULL);
+ cfg.dev = &pdev->dev;
+ cfg.init_data = config->init_data;
+ cfg.driver_data = &drvdata;
+
+ drvdata->dev = regulator_register(&drvdata->desc, &cfg);
if (IS_ERR(drvdata->dev)) {
ret = PTR_ERR(drvdata->dev);
dev_err(&pdev->dev, "Failed to register regulator: %d\n", ret);
@@ -307,7 +311,6 @@ err_memgpio:
err_name:
kfree(drvdata->desc.name);
err:
- kfree(drvdata);
return ret;
}
@@ -326,7 +329,6 @@ static int __devexit gpio_regulator_remove(struct platform_device *pdev)
gpio_free(drvdata->enable_gpio);
kfree(drvdata->desc.name);
- kfree(drvdata);
return 0;
}