linux-kernel - [PATCH 4.9 19/44] iio/gyro/bmg160: Use millidegrees for temperature scale

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Message-Id: <20190424170853.787978908@linuxfoundation.org>
Date:   Wed, 24 Apr 2019 19:09:57 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Mike Looijmans <mike.looijmans@...ic.nl>,
        Stable@...r.kernel.org,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: [PATCH 4.9 19/44] iio/gyro/bmg160: Use millidegrees for temperature scale

From: Mike Looijmans <mike.looijmans@...ic.nl>

commit 40a7198a4a01037003c7ca714f0d048a61e729ac upstream.

Standard unit for temperature is millidegrees Celcius, whereas this driver
was reporting in degrees. Fix the scale factor in the driver.

Signed-off-by: Mike Looijmans <mike.looijmans@...ic.nl>
Cc: <Stable@...r.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/iio/gyro/bmg160_core.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/iio/gyro/bmg160_core.c
+++ b/drivers/iio/gyro/bmg160_core.c
@@ -583,11 +583,10 @@ static int bmg160_read_raw(struct iio_de
 	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
 		return bmg160_get_filter(data, val);
 	case IIO_CHAN_INFO_SCALE:
-		*val = 0;
 		switch (chan->type) {
 		case IIO_TEMP:
-			*val2 = 500000;
-			return IIO_VAL_INT_PLUS_MICRO;
+			*val = 500;
+			return IIO_VAL_INT;
 		case IIO_ANGL_VEL:
 		{
 			int i;
@@ -595,6 +594,7 @@ static int bmg160_read_raw(struct iio_de
 			for (i = 0; i < ARRAY_SIZE(bmg160_scale_table); ++i) {
 				if (bmg160_scale_table[i].dps_range ==
 							data->dps_range) {
+					*val = 0;
 					*val2 = bmg160_scale_table[i].scale;
 					return IIO_VAL_INT_PLUS_MICRO;
 				}