diff mbox series

[v2,6/7] staging: iio: impedance-analyzer: ad5933: Use devm_regulator_get_enable_read_voltage()

Message ID 20240429-regulator-get-enable-get-votlage-v2-6-b1f11ab766c1@baylibre.com (mailing list archive)
State Mainlined
Commit 9fcf6ef3e10b9fc605d84802058c0f30517bbaa7
Headers show
Series regulator: new API for voltage reference supplies | expand

Commit Message

David Lechner April 29, 2024, 11:40 p.m. UTC 
We can reduce boilerplate code by using
devm_regulator_get_enable_read_voltage().

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: David Lechner <dlechner@baylibre.com>
---

v2 changes:
* fixed wrong driver name in patch subject
* renamed to devm_regulator_get_enable_read_voltage()
* restored error message
---
 drivers/staging/iio/impedance-analyzer/ad5933.c | 26 ++-----------------------
 1 file changed, 2 insertions(+), 24 deletions(-)
diff mbox series

Patch

diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index 9149d41fe65b..b7af5fe63e09 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -84,7 +84,6 @@ 
 
 struct ad5933_state {
 	struct i2c_client		*client;
-	struct regulator		*reg;
 	struct clk			*mclk;
 	struct delayed_work		work;
 	struct mutex			lock; /* Protect sensor state */
@@ -660,13 +659,6 @@  static void ad5933_work(struct work_struct *work)
 	}
 }
 
-static void ad5933_reg_disable(void *data)
-{
-	struct ad5933_state *st = data;
-
-	regulator_disable(st->reg);
-}
-
 static int ad5933_probe(struct i2c_client *client)
 {
 	const struct i2c_device_id *id = i2c_client_get_device_id(client);
@@ -685,23 +677,9 @@  static int ad5933_probe(struct i2c_client *client)
 
 	mutex_init(&st->lock);
 
-	st->reg = devm_regulator_get(&client->dev, "vdd");
-	if (IS_ERR(st->reg))
-		return PTR_ERR(st->reg);
-
-	ret = regulator_enable(st->reg);
-	if (ret) {
-		dev_err(&client->dev, "Failed to enable specified VDD supply\n");
-		return ret;
-	}
-
-	ret = devm_add_action_or_reset(&client->dev, ad5933_reg_disable, st);
-	if (ret)
-		return ret;
-
-	ret = regulator_get_voltage(st->reg);
+	ret = devm_regulator_get_enable_read_voltage(&client->dev, "vdd");
 	if (ret < 0)
-		return ret;
+		return dev_err_probe(&client->dev, ret, "failed to get vdd voltage\n");
 
 	st->vref_mv = ret / 1000;