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regulator: max8952: Use managed regulator registration 

Use managed devm_regulator_register to simplify the driver probe and
driver remove functions. This allows removing from state container the
pointer to regulator_dev returned on registering the regulator.

Patch also removes from state container pointer to 'struct device' as it
is not used anywhere outside of max8952_pmic_probe() function.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Krzysztof Kozlowski 2014-03-10 09:32:50 +01:00 committed by Mark Brown
parent 7752d96400
commit b874f41c6b
1 changed files with 8 additions and 13 deletions
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21
drivers/regulator/max8952.c
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@ -48,9 +48,7 @@ enum {
struct max8952_data {
struct i2c_client *client;
struct device *dev;
struct max8952_platform_data *pdata;
struct regulator_dev *rdev;
bool vid0;
bool vid1;
@ -197,6 +195,7 @@ static int max8952_pmic_probe(struct i2c_client *client,
struct max8952_platform_data *pdata = dev_get_platdata(&client->dev);
struct regulator_config config = { };
struct max8952_data *max8952;
struct regulator_dev *rdev;
int ret = 0, err = 0;
@ -217,10 +216,9 @@ static int max8952_pmic_probe(struct i2c_client *client,
return -ENOMEM;
max8952->client = client;
max8952->dev = &client->dev;
max8952->pdata = pdata;
config.dev = max8952->dev;
config.dev = &client->dev;
config.init_data = pdata->reg_data;
config.driver_data = max8952;
config.of_node = client->dev.of_node;
@ -229,11 +227,11 @@ static int max8952_pmic_probe(struct i2c_client *client,
if (pdata->reg_data->constraints.boot_on)
config.ena_gpio_flags |= GPIOF_OUT_INIT_HIGH;
max8952->rdev = regulator_register(&regulator, &config);
rdev = devm_regulator_register(&client->dev, &regulator, &config);
if (IS_ERR(max8952->rdev)) {
ret = PTR_ERR(max8952->rdev);
dev_err(max8952->dev, "regulator init failed (%d)\n", ret);
if (IS_ERR(rdev)) {
ret = PTR_ERR(rdev);
dev_err(&client->dev, "regulator init failed (%d)\n", ret);
return ret;
}
@ -261,7 +259,7 @@ static int max8952_pmic_probe(struct i2c_client *client,
err = 3;
if (err) {
dev_warn(max8952->dev, "VID0/1 gpio invalid: "
dev_warn(&client->dev, "VID0/1 gpio invalid: "
"DVS not available.\n");
max8952->vid0 = 0;
max8952->vid1 = 0;
@ -272,7 +270,7 @@ static int max8952_pmic_probe(struct i2c_client *client,
/* Disable Pulldown of EN only */
max8952_write_reg(max8952, MAX8952_REG_CONTROL, 0x60);
dev_err(max8952->dev, "DVS modes disabled because VID0 and VID1"
dev_err(&client->dev, "DVS modes disabled because VID0 and VID1"
" do not have proper controls.\n");
} else {
/*
@ -319,9 +317,6 @@ static int max8952_pmic_remove(struct i2c_client *client)
{
struct max8952_data *max8952 = i2c_get_clientdata(client);
struct max8952_platform_data *pdata = max8952->pdata;
struct regulator_dev *rdev = max8952->rdev;
regulator_unregister(rdev);
gpio_free(pdata->gpio_vid0);
gpio_free(pdata->gpio_vid1);