linux-kernel - [PATCH 1/7] iio: light: bh1745: simplify code in write_event

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Message-Id: <20241024-iio-fix-write-event-config-signature-v1-1-7d29e5a31b00@baylibre.com>
Date: Thu, 24 Oct 2024 11:11:23 +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 1/7] iio: light: bh1745: 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/light/bh1745.c | 48 +++++++++++++++++++++-------------------------
 1 file changed, 22 insertions(+), 26 deletions(-)

diff --git a/drivers/iio/light/bh1745.c b/drivers/iio/light/bh1745.c
index 2e458e9d5d85308fb6a13d9dbd845fa03b56a40e..fc6bf062d4f510886f909509d8115f0cf892f3c4 100644
--- a/drivers/iio/light/bh1745.c
+++ b/drivers/iio/light/bh1745.c
@@ -643,41 +643,37 @@ static int bh1745_write_event_config(struct iio_dev *indio_dev,
 	struct bh1745_data *data = iio_priv(indio_dev);
 	int value;
 
-	if (state == 0)
+	if (!state)
 		return regmap_clear_bits(data->regmap,
 					 BH1745_INTR, BH1745_INTR_ENABLE);
 
-	if (state == 1) {
-		/* Latch is always enabled when enabling interrupt */
-		value = BH1745_INTR_ENABLE;
+	/* Latch is always enabled when enabling interrupt */
+	value = BH1745_INTR_ENABLE;
 
-		switch (chan->channel2) {
-		case IIO_MOD_LIGHT_RED:
-			return regmap_write(data->regmap, BH1745_INTR,
-					    value | FIELD_PREP(BH1745_INTR_SOURCE_MASK,
-							       BH1745_INTR_SOURCE_RED));
+	switch (chan->channel2) {
+	case IIO_MOD_LIGHT_RED:
+		return regmap_write(data->regmap, BH1745_INTR,
+				    value | FIELD_PREP(BH1745_INTR_SOURCE_MASK,
+						       BH1745_INTR_SOURCE_RED));
 
-		case IIO_MOD_LIGHT_GREEN:
-			return regmap_write(data->regmap, BH1745_INTR,
-					    value | FIELD_PREP(BH1745_INTR_SOURCE_MASK,
-							       BH1745_INTR_SOURCE_GREEN));
+	case IIO_MOD_LIGHT_GREEN:
+		return regmap_write(data->regmap, BH1745_INTR,
+				    value | FIELD_PREP(BH1745_INTR_SOURCE_MASK,
+						       BH1745_INTR_SOURCE_GREEN));
 
-		case IIO_MOD_LIGHT_BLUE:
-			return regmap_write(data->regmap, BH1745_INTR,
-					    value | FIELD_PREP(BH1745_INTR_SOURCE_MASK,
-							       BH1745_INTR_SOURCE_BLUE));
+	case IIO_MOD_LIGHT_BLUE:
+		return regmap_write(data->regmap, BH1745_INTR,
+				    value | FIELD_PREP(BH1745_INTR_SOURCE_MASK,
+						       BH1745_INTR_SOURCE_BLUE));
 
-		case IIO_MOD_LIGHT_CLEAR:
-			return regmap_write(data->regmap, BH1745_INTR,
-					    value | FIELD_PREP(BH1745_INTR_SOURCE_MASK,
-							       BH1745_INTR_SOURCE_CLEAR));
+	case IIO_MOD_LIGHT_CLEAR:
+		return regmap_write(data->regmap, BH1745_INTR,
+				    value | FIELD_PREP(BH1745_INTR_SOURCE_MASK,
+						       BH1745_INTR_SOURCE_CLEAR));
 
-		default:
-			return -EINVAL;
-		}
+	default:
+		return -EINVAL;
 	}
-
-	return -EINVAL;
 }
 
 static int bh1745_read_avail(struct iio_dev *indio_dev,

-- 
2.47.0