linux-kernel - [RFC PATCH 7/7] adc: ad7192: simplify using devm_regulator_get

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Date:   Wed, 10 Aug 2022 14:32:49 +0300
From:   Matti Vaittinen <mazziesaccount@...il.com>
To:     matti.vaittinen@...rohmeurope.com, mazziesaccount@...il.com
Cc:     Alexandru Tachici <alexandru.tachici@...log.com>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Jonathan Cameron <jic23@...nel.org>, linux-iio@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [RFC PATCH 7/7] adc: ad7192: simplify using
 devm_regulator_get_enable()

Drop open-coded pattern: 'devm_regulator_get(), regulator_enable(),
add_action_or_reset(regulator_disable)' and use the
devm_regulator_get_enable_optional(). Also drop the seemingly unused
struct member 'dvdd'.

Signed-off-by: Matti Vaittinen <mazziesaccount@...il.com>
---
 drivers/iio/adc/ad7192.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/iio/adc/ad7192.c b/drivers/iio/adc/ad7192.c
index d71977be7d22..8a52c0dec3f9 100644
--- a/drivers/iio/adc/ad7192.c
+++ b/drivers/iio/adc/ad7192.c
@@ -177,7 +177,6 @@ struct ad7192_chip_info {
 struct ad7192_state {
 	const struct ad7192_chip_info	*chip_info;
 	struct regulator		*avdd;
-	struct regulator		*dvdd;
 	struct clk			*mclk;
 	u16				int_vref_mv;
 	u32				fclk;
@@ -1015,19 +1014,9 @@ static int ad7192_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	st->dvdd = devm_regulator_get(&spi->dev, "dvdd");
-	if (IS_ERR(st->dvdd))
-		return PTR_ERR(st->dvdd);
-
-	ret = regulator_enable(st->dvdd);
-	if (ret) {
-		dev_err(&spi->dev, "Failed to enable specified DVdd supply\n");
-		return ret;
-	}
-
-	ret = devm_add_action_or_reset(&spi->dev, ad7192_reg_disable, st->dvdd);
+	ret = devm_regulator_get_enable(&spi->dev, "dvdd");
 	if (ret)
-		return ret;
+		return dev_err_probe(&spi->dev, ret, "Failed to enable specified DVdd supply\n");
 
 	ret = regulator_get_voltage(st->avdd);
 	if (ret < 0) {
-- 
2.37.1


-- 
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =] 

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