linux-kernel - [PATCH 5/7] iio: imu: inv_mpu6050: simplify code in write_event

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Message-Id: <20241024-iio-fix-write-event-config-signature-v1-5-7d29e5a31b00@baylibre.com>
Date: Thu, 24 Oct 2024 11:11:27 +0200
From: Julien Stephan <jstephan@...libre.com>
To: Mudit Sharma <muditsharma.info@...il.com>, 
 Jonathan Cameron <jic23@...nel.org>, Lars-Peter Clausen <lars@...afoo.de>, 
 Anshul Dalal <anshulusr@...il.com>, 
 Javier Carrasco <javier.carrasco.cruz@...il.com>, 
 Jean-Baptiste Maneyrol <jean-baptiste.maneyrol@....com>, 
 Michael Hennerich <Michael.Hennerich@...log.com>, 
 Cosmin Tanislav <cosmin.tanislav@...log.com>, 
 Ramona Gradinariu <ramona.gradinariu@...log.com>, 
 Antoniu Miclaus <antoniu.miclaus@...log.com>, 
 Dan Robertson <dan@...obertson.com>, 
 Marcelo Schmitt <marcelo.schmitt@...log.com>, 
 Matteo Martelli <matteomartelli3@...il.com>, 
 Anand Ashok Dumbre <anand.ashok.dumbre@...inx.com>, 
 Michal Simek <michal.simek@....com>, 
 Mariel Tinaco <Mariel.Tinaco@...log.com>, 
 Jagath Jog J <jagathjog1996@...il.com>, 
 Lorenzo Bianconi <lorenzo@...nel.org>, 
 Subhajit Ghosh <subhajit.ghosh@...aklogic.com>, 
 Kevin Tsai <ktsai@...ellamicro.com>, 
 Linus Walleij <linus.walleij@...aro.org>, 
 Benson Leung <bleung@...omium.org>, Guenter Roeck <groeck@...omium.org>
Cc: linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-kernel@...ts.infradead.org, chrome-platform@...ts.linux.dev, 
 Julien Stephan <jstephan@...libre.com>
Subject: [PATCH 5/7] iio: imu: inv_mpu6050: simplify code in
 write_event_config callback

iio_ev_state_store is actually using kstrtobool to check user
input, then gives the converted boolean value to the write_event_config
callback.

Remove useless code in write_event_config callback.

Signed-off-by: Julien Stephan <jstephan@...libre.com>
---
 drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 7 ++-----
 drivers/iio/light/apds9960.c               | 2 --
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 5680be153127711777b6074da18a7a0f86211d6c..21ebf0f7e28fec302cbf8ab890fc53a3de6f36cd 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -1176,21 +1176,18 @@ static int inv_mpu6050_write_event_config(struct iio_dev *indio_dev,
 					  int state)
 {
 	struct inv_mpu6050_state *st = iio_priv(indio_dev);
-	int enable;
 
 	/* support only WoM (accel roc rising) event */
 	if (chan->type != IIO_ACCEL || type != IIO_EV_TYPE_ROC ||
 	    dir != IIO_EV_DIR_RISING)
 		return -EINVAL;
 
-	enable = !!state;
-
 	guard(mutex)(&st->lock);
 
-	if (st->chip_config.wom_en == enable)
+	if (st->chip_config.wom_en == state)
 		return 0;
 
-	return inv_mpu6050_enable_wom(st, enable);
+	return inv_mpu6050_enable_wom(st, state);
 }
 
 static int inv_mpu6050_read_event_value(struct iio_dev *indio_dev,
diff --git a/drivers/iio/light/apds9960.c b/drivers/iio/light/apds9960.c
index 3c14e4c30805e1b596ef2380f94e6aa3e92082b1..3a56eaae5a68f2891d061871c7013f0b5447bb47 100644
--- a/drivers/iio/light/apds9960.c
+++ b/drivers/iio/light/apds9960.c
@@ -762,8 +762,6 @@ static int apds9960_write_event_config(struct iio_dev *indio_dev,
 	struct apds9960_data *data = iio_priv(indio_dev);
 	int ret;
 
-	state = !!state;
-
 	switch (chan->type) {
 	case IIO_PROXIMITY:
 		if (data->pxs_int == state)

-- 
2.47.0