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iio: tsl2772: Use regulator_bulk_() APIs 

Use regulator_bulk_() APIs to shrink driver size.

Signed-off-by: Chuhong Yuan <hslester96@gmail.com>
Reviewed-by: Brian Masney <masneyb@onstation.org>
Tested-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Chuhong Yuan 2019-08-01 15:36:19 +08:00 committed by Jonathan Cameron
parent 7e7f631c95
commit a6513a878e
1 changed files with 29 additions and 58 deletions
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87
drivers/iio/light/tsl2772.c
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@ -134,6 +134,12 @@ enum {
TSL2772_CHIP_SUSPENDED = 2
};
enum {
TSL2772_SUPPLY_VDD = 0,
TSL2772_SUPPLY_VDDIO = 1,
TSL2772_NUM_SUPPLIES = 2
};
/* Per-device data */
struct tsl2772_als_info {
u16 als_ch0;
@ -161,8 +167,7 @@ struct tsl2772_chip {
struct mutex prox_mutex;
struct mutex als_mutex;
struct i2c_client *client;
struct regulator *vdd_supply;
struct regulator *vddio_supply;
struct regulator_bulk_data supplies[TSL2772_NUM_SUPPLIES];
u16 prox_data;
struct tsl2772_als_info als_cur_info;
struct tsl2772_settings settings;
@ -697,46 +702,7 @@ static void tsl2772_disable_regulators_action(void *_data)
{
struct tsl2772_chip *chip = _data;
regulator_disable(chip->vdd_supply);
regulator_disable(chip->vddio_supply);
}
static int tsl2772_enable_regulator(struct tsl2772_chip *chip,
struct regulator *regulator)
{
int ret;
ret = regulator_enable(regulator);
if (ret < 0) {
dev_err(&chip->client->dev, "Failed to enable regulator: %d\n",
ret);
return ret;
}
return 0;
}
static struct regulator *tsl2772_get_regulator(struct tsl2772_chip *chip,
char *name)
{
struct regulator *regulator;
int ret;
regulator = devm_regulator_get(&chip->client->dev, name);
if (IS_ERR(regulator)) {
if (PTR_ERR(regulator) != -EPROBE_DEFER)
dev_err(&chip->client->dev,
"Failed to get %s regulator %d\n",
name, (int)PTR_ERR(regulator));
return regulator;
}
ret = tsl2772_enable_regulator(chip, regulator);
if (ret < 0)
return ERR_PTR(ret);
return regulator;
regulator_bulk_disable(ARRAY_SIZE(chip->supplies), chip->supplies);
}
static int tsl2772_chip_on(struct iio_dev *indio_dev)
@ -1804,14 +1770,26 @@ static int tsl2772_probe(struct i2c_client *clientp,
chip->client = clientp;
i2c_set_clientdata(clientp, indio_dev);
chip->vddio_supply = tsl2772_get_regulator(chip, "vddio");
if (IS_ERR(chip->vddio_supply))
return PTR_ERR(chip->vddio_supply);
chip->supplies[TSL2772_SUPPLY_VDD].supply = "vdd";
chip->supplies[TSL2772_SUPPLY_VDDIO].supply = "vddio";
chip->vdd_supply = tsl2772_get_regulator(chip, "vdd");
if (IS_ERR(chip->vdd_supply)) {
regulator_disable(chip->vddio_supply);
return PTR_ERR(chip->vdd_supply);
ret = devm_regulator_bulk_get(&clientp->dev,
ARRAY_SIZE(chip->supplies),
chip->supplies);
if (ret < 0) {
if (ret != -EPROBE_DEFER)
dev_err(&clientp->dev,
"Failed to get regulators: %d\n",
ret);
return ret;
}
ret = regulator_bulk_enable(ARRAY_SIZE(chip->supplies), chip->supplies);
if (ret < 0) {
dev_err(&clientp->dev, "Failed to enable regulators: %d\n",
ret);
return ret;
}
ret = devm_add_action_or_reset(&clientp->dev,
@ -1900,8 +1878,7 @@ static int tsl2772_suspend(struct device *dev)
int ret;
ret = tsl2772_chip_off(indio_dev);
regulator_disable(chip->vdd_supply);
regulator_disable(chip->vddio_supply);
regulator_bulk_disable(ARRAY_SIZE(chip->supplies), chip->supplies);
return ret;
}
@ -1912,16 +1889,10 @@ static int tsl2772_resume(struct device *dev)
struct tsl2772_chip *chip = iio_priv(indio_dev);
int ret;
ret = tsl2772_enable_regulator(chip, chip->vddio_supply);
ret = regulator_bulk_enable(ARRAY_SIZE(chip->supplies), chip->supplies);
if (ret < 0)
return ret;
ret = tsl2772_enable_regulator(chip, chip->vdd_supply);
if (ret < 0) {
regulator_disable(chip->vddio_supply);
return ret;
}
usleep_range(TSL2772_BOOT_MIN_SLEEP_TIME, TSL2772_BOOT_MAX_SLEEP_TIME);
return tsl2772_chip_on(indio_dev);