linux-kernel - [PATCH RFC 6/7] staging: iio: impedance-analyzer: admv1013: Use devm_regulator_get_enable_get

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Date: Wed, 27 Mar 2024 18:18:55 -0500
From: David Lechner <dlechner@...libre.com>
To: Jonathan Corbet <corbet@....net>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jean Delvare <jdelvare@...e.com>,
	Guenter Roeck <linux@...ck-us.net>,
	Support Opensource <support.opensource@...semi.com>,
	Cosmin Tanislav <cosmin.tanislav@...log.com>,
	Lars-Peter Clausen <lars@...afoo.de>,
	Michael Hennerich <Michael.Hennerich@...log.com>,
	Jonathan Cameron <jic23@...nel.org>,
	Antoniu Miclaus <antoniu.miclaus@...log.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: David Lechner <dlechner@...libre.com>,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-hwmon@...r.kernel.org,
	linux-iio@...r.kernel.org,
	linux-staging@...ts.linux.dev,
	linux-input@...r.kernel.org
Subject: [PATCH RFC 6/7] staging: iio: impedance-analyzer: admv1013: Use devm_regulator_get_enable_get_voltage()

We can reduce boilerplate code by using
devm_regulator_get_enable_get_voltage().

Signed-off-by: David Lechner <dlechner@...libre.com>
---
 drivers/staging/iio/impedance-analyzer/ad5933.c | 24 +-----------------------
 1 file changed, 1 insertion(+), 23 deletions(-)

diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index 9149d41fe65b..e4942833b793 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);
@@ -685,21 +677,7 @@ 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_get_voltage(&client->dev, "vdd");
 	if (ret < 0)
 		return ret;
 

-- 
2.43.2