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Date: Wed, 31 Jul 2019 11:04:23 +0800
From: Chuhong Yuan <hslester96@...il.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Jonathan Cameron <jic23@...nel.org>,
Hartmut Knaack <knaack.h@....de>,
Lars-Peter Clausen <lars@...afoo.de>,
Peter Meerwald-Stadler <pmeerw@...erw.net>,
Brian Masney <masneyb@...tation.org>,
linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
Chuhong Yuan <hslester96@...il.com>
Subject: [PATCH v3 2/2] iio: tsl2772: Use regulator_bulk_() APIs
Use regulator_bulk_() APIs to shrink driver size.
Signed-off-by: Chuhong Yuan <hslester96@...il.com>
---
Changes in v3:
- Split v2 into two patches.
- Add dev_err to log error messages.
- Add a check for EPROBE_DEFER.
drivers/iio/light/tsl2772.c | 82 +++++++++++--------------------------
1 file changed, 24 insertions(+), 58 deletions(-)
diff --git a/drivers/iio/light/tsl2772.c b/drivers/iio/light/tsl2772.c
index f1134f183be7..fd6d44297dba 100644
--- a/drivers/iio/light/tsl2772.c
+++ b/drivers/iio/light/tsl2772.c
@@ -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 reg[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->reg), chip->reg);
}
static int tsl2772_chip_on(struct iio_dev *indio_dev)
@@ -1804,14 +1770,21 @@ 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->reg[TSL2772_SUPPLY_VDD].supply = "vdd";
+ chip->reg[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->reg),
+ chip->reg);
+ 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->reg), chip->reg);
+ if (ret < 0) {
+ dev_err(&clientp->dev, "Failed to enable regulators: %d\n", ret);
+ return ret;
}
ret = devm_add_action_or_reset(&clientp->dev,
@@ -1901,8 +1874,7 @@ 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->reg), chip->reg);
return ret;
}
@@ -1913,16 +1885,10 @@ 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->reg), chip->reg);
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);
--
2.20.1
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