linux-kernel - [PATCH v3 22/41] iio: gyro: mpu3050-core: make use of regmap_clear_bits(), regmap_set

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Message-Id: <20240617-review-v3-22-88d1338c4cca@baylibre.com>
Date: Mon, 17 Jun 2024 09:50:02 -0400
From: Trevor Gamblin <tgamblin@...libre.com>
To: Jonathan Cameron <jic23@...nel.org>, 
 Lars-Peter Clausen <lars@...afoo.de>, 
 Dmitry Rokosov <ddrokosov@...rdevices.ru>, 
 Michael Hennerich <Michael.Hennerich@...log.com>, 
 Cosmin Tanislav <cosmin.tanislav@...log.com>, Chen-Yu Tsai <wens@...e.org>, 
 Hans de Goede <hdegoede@...hat.com>, Ray Jui <rjui@...adcom.com>, 
 Scott Branden <sbranden@...adcom.com>, 
 Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>, 
 Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, 
 Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Fabio Estevam <festevam@...il.com>, 
 Neil Armstrong <neil.armstrong@...aro.org>, 
 Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>, 
 Martin Blumenstingl <martin.blumenstingl@...glemail.com>, 
 Saravanan Sekar <sravanhome@...il.com>, Orson Zhai <orsonzhai@...il.com>, 
 Baolin Wang <baolin.wang@...ux.alibaba.com>, 
 Chunyan Zhang <zhang.lyra@...il.com>, 
 Maxime Coquelin <mcoquelin.stm32@...il.com>, 
 Alexandre Torgue <alexandre.torgue@...s.st.com>, 
 Nuno Sá <nuno.sa@...log.com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Jean-Baptiste Maneyrol <jmaneyrol@...ensense.com>, 
 Crt Mori <cmo@...exis.com>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, imx@...ts.linux.dev, 
 linux-amlogic@...ts.infradead.org, linux-arm-msm@...r.kernel.org, 
 linux-stm32@...md-mailman.stormreply.com, 
 Uwe Kleine-König <u.kleine-koenig@...libre.com>, 
 Trevor Gamblin <tgamblin@...libre.com>
Subject: [PATCH v3 22/41] iio: gyro: mpu3050-core: make use of
 regmap_clear_bits(), regmap_set_bits()

Instead of using regmap_update_bits() and passing the mask twice, use
regmap_set_bits().

Instead of using regmap_update_bits() and passing val = 0, use
regmap_clear_bits().

Suggested-by: Uwe Kleine-König <u.kleine-koenig@...libre.com>
Signed-off-by: Trevor Gamblin <tgamblin@...libre.com>
---
 drivers/iio/gyro/mpu3050-core.c | 33 ++++++++++++---------------------
 1 file changed, 12 insertions(+), 21 deletions(-)

diff --git a/drivers/iio/gyro/mpu3050-core.c b/drivers/iio/gyro/mpu3050-core.c
index a791ba3a693a..ff1c81553045 100644
--- a/drivers/iio/gyro/mpu3050-core.c
+++ b/drivers/iio/gyro/mpu3050-core.c
@@ -197,8 +197,8 @@ static int mpu3050_start_sampling(struct mpu3050 *mpu3050)
 	int i;
 
 	/* Reset */
-	ret = regmap_update_bits(mpu3050->map, MPU3050_PWR_MGM,
-				 MPU3050_PWR_MGM_RESET, MPU3050_PWR_MGM_RESET);
+	ret = regmap_set_bits(mpu3050->map, MPU3050_PWR_MGM,
+			      MPU3050_PWR_MGM_RESET);
 	if (ret)
 		return ret;
 
@@ -513,12 +513,8 @@ static irqreturn_t mpu3050_trigger_handler(int irq, void *p)
 				 "FIFO overflow! Emptying and resetting FIFO\n");
 			fifo_overflow = true;
 			/* Reset and enable the FIFO */
-			ret = regmap_update_bits(mpu3050->map,
-						 MPU3050_USR_CTRL,
-						 MPU3050_USR_CTRL_FIFO_EN |
-						 MPU3050_USR_CTRL_FIFO_RST,
-						 MPU3050_USR_CTRL_FIFO_EN |
-						 MPU3050_USR_CTRL_FIFO_RST);
+			ret = regmap_set_bits(mpu3050->map, MPU3050_USR_CTRL,
+					      MPU3050_USR_CTRL_FIFO_EN | MPU3050_USR_CTRL_FIFO_RST);
 			if (ret) {
 				dev_info(mpu3050->dev, "error resetting FIFO\n");
 				goto out_trigger_unlock;
@@ -799,10 +795,8 @@ static int mpu3050_hw_init(struct mpu3050 *mpu3050)
 	u64 otp;
 
 	/* Reset */
-	ret = regmap_update_bits(mpu3050->map,
-				 MPU3050_PWR_MGM,
-				 MPU3050_PWR_MGM_RESET,
-				 MPU3050_PWR_MGM_RESET);
+	ret = regmap_set_bits(mpu3050->map, MPU3050_PWR_MGM,
+			      MPU3050_PWR_MGM_RESET);
 	if (ret)
 		return ret;
 
@@ -872,8 +866,8 @@ static int mpu3050_power_up(struct mpu3050 *mpu3050)
 	msleep(200);
 
 	/* Take device out of sleep mode */
-	ret = regmap_update_bits(mpu3050->map, MPU3050_PWR_MGM,
-				 MPU3050_PWR_MGM_SLEEP, 0);
+	ret = regmap_clear_bits(mpu3050->map, MPU3050_PWR_MGM,
+				MPU3050_PWR_MGM_SLEEP);
 	if (ret) {
 		regulator_bulk_disable(ARRAY_SIZE(mpu3050->regs), mpu3050->regs);
 		dev_err(mpu3050->dev, "error setting power mode\n");
@@ -895,8 +889,8 @@ static int mpu3050_power_down(struct mpu3050 *mpu3050)
 	 * then we would be wasting power unless we go to sleep mode
 	 * first.
 	 */
-	ret = regmap_update_bits(mpu3050->map, MPU3050_PWR_MGM,
-				 MPU3050_PWR_MGM_SLEEP, MPU3050_PWR_MGM_SLEEP);
+	ret = regmap_set_bits(mpu3050->map, MPU3050_PWR_MGM,
+			      MPU3050_PWR_MGM_SLEEP);
 	if (ret)
 		dev_err(mpu3050->dev, "error putting to sleep\n");
 
@@ -997,11 +991,8 @@ static int mpu3050_drdy_trigger_set_state(struct iio_trigger *trig,
 			return ret;
 
 		/* Reset and enable the FIFO */
-		ret = regmap_update_bits(mpu3050->map, MPU3050_USR_CTRL,
-					 MPU3050_USR_CTRL_FIFO_EN |
-					 MPU3050_USR_CTRL_FIFO_RST,
-					 MPU3050_USR_CTRL_FIFO_EN |
-					 MPU3050_USR_CTRL_FIFO_RST);
+		ret = regmap_set_bits(mpu3050->map, MPU3050_USR_CTRL,
+				      MPU3050_USR_CTRL_FIFO_EN | MPU3050_USR_CTRL_FIFO_RST);
 		if (ret)
 			return ret;
 

-- 
2.45.2