linux-kernel - [PATCH v3 1/2] iio: pressure: bmp280: Use unsigned type for raw values

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Message-Id: <20240930202353.38203-2-vassilisamir@gmail.com>
Date: Mon, 30 Sep 2024 22:23:52 +0200
From: Vasileios Amoiridis <vassilisamir@...il.com>
To: jic23@...nel.org
Cc: dan.carpenter@...aro.org,
	linux-iio@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Vasileios Amoiridis <vassilisamir@...il.com>
Subject: [PATCH v3 1/2] iio: pressure: bmp280: Use unsigned type for raw values

The adc values coming directly from the sensor in the BM{E,P}{2,3}xx
sensors are unsigned values so treat them as such.

Signed-off-by: Vasileios Amoiridis <vassilisamir@...il.com>
---
 drivers/iio/pressure/bmp280-core.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/pressure/bmp280-core.c b/drivers/iio/pressure/bmp280-core.c
index 6c2606f34ec4..472a6696303b 100644
--- a/drivers/iio/pressure/bmp280-core.c
+++ b/drivers/iio/pressure/bmp280-core.c
@@ -1023,7 +1023,8 @@ static irqreturn_t bmp280_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct bmp280_data *data = iio_priv(indio_dev);
-	s32 adc_temp, adc_press, t_fine;
+	u32 adc_temp, adc_press;
+	s32 t_fine;
 	int ret;
 
 	guard(mutex)(&data->lock);
@@ -1137,7 +1138,8 @@ static irqreturn_t bme280_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct bmp280_data *data = iio_priv(indio_dev);
-	s32 adc_temp, adc_press, adc_humidity, t_fine;
+	u32 adc_temp, adc_press, adc_humidity;
+	s32 t_fine;
 	int ret;
 
 	guard(mutex)(&data->lock);
@@ -1616,7 +1618,8 @@ static irqreturn_t bmp380_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct bmp280_data *data = iio_priv(indio_dev);
-	s32 adc_temp, adc_press, t_fine;
+	u32 adc_temp, adc_press;
+	s32 t_fine;
 	int ret;
 
 	guard(mutex)(&data->lock);
-- 
2.25.1