From: Wilfried Wessner <wilfried.wessner@gmail.com>
To: Lars-Peter Clausen <lars@metafoo.de>,
Michael Hennerich <Michael.Hennerich@analog.com>,
Jonathan Cameron <jic23@kernel.org>,
Peter Meerwald-Stadler <pmeerw@pmeerw.net>
Cc: linux-iio@vger.kernel.org, gregkh@linuxfoundation.org
Subject: [PATCH] Correct bit mask for ADC result according to ADC's resolution.
Date: Thu, 4 Feb 2021 16:54:30 +0100 [thread overview]
Message-ID: <20210204155430.GA557111@ubuntu> (raw)
Signed-off-by: Wilfried Wessner <wilfried.wessner@gmail.com>
---
drivers/iio/adc/ad7949.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/iio/adc/ad7949.c b/drivers/iio/adc/ad7949.c
index 5d597e5050f6..a5b4858cb6dc 100644
--- a/drivers/iio/adc/ad7949.c
+++ b/drivers/iio/adc/ad7949.c
@@ -91,7 +91,7 @@ static int ad7949_spi_read_channel(struct ad7949_adc_chip *ad7949_adc, int *val,
int ret;
int i;
int bits_per_word = ad7949_adc->resolution;
- int mask = GENMASK(ad7949_adc->resolution, 0);
+ int mask = GENMASK((ad7949_adc->resolution-1), 0);
struct spi_message msg;
struct spi_transfer tx[] = {
{
--
2.25.1
next reply other threads:[~2021-02-04 15:56 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-02-04 15:54 Wilfried Wessner [this message]
2021-02-04 16:11 ` [PATCH] Correct bit mask for ADC result according to ADC's resolution Greg KH
2021-02-04 17:17 ` Wilfried Wessner
2021-02-05 9:06 ` Greg KH
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