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Message-ID: <56F78ED3.8080603@gmail.com> Date: Sun, 27 Mar 2016 15:42:11 +0800 From: "zhaoxiu.zeng" <zhaoxiu.zeng@...il.com> To: Lars-Peter Clausen <lars@...afoo.de>, Michael Hennerich <Michael.Hennerich@...log.com>, Jonathan Cameron <jic23@...nel.org>, Hartmut Knaack <knaack.h@....de>, Peter Meerwald <pmeerw@...erw.net> Cc: linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org Subject: [PATCH 28/31] iio: gyro: use parity32 in adxrs450.c From: Zeng Zhaoxiu <zhaoxiu.zeng@...il.com> Signed-off-by: Zeng Zhaoxiu <zhaoxiu.zeng@...il.com> --- drivers/iio/gyro/adxrs450.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) diff --git a/drivers/iio/gyro/adxrs450.c b/drivers/iio/gyro/adxrs450.c index a330d42..f1f19fc20 100644 --- a/drivers/iio/gyro/adxrs450.c +++ b/drivers/iio/gyro/adxrs450.c @@ -108,9 +108,7 @@ static int adxrs450_spi_read_reg_16(struct iio_dev *indio_dev, mutex_lock(&st->buf_lock); tx = ADXRS450_READ_DATA | (reg_address << 17); - - if (!(hweight32(tx) & 1)) - tx |= ADXRS450_P; + tx |= !parity32(tx) * ADXRS450_P; st->tx = cpu_to_be32(tx); ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers)); @@ -144,9 +142,7 @@ static int adxrs450_spi_write_reg_16(struct iio_dev *indio_dev, mutex_lock(&st->buf_lock); tx = ADXRS450_WRITE_DATA | (reg_address << 17) | (val << 1); - - if (!(hweight32(tx) & 1)) - tx |= ADXRS450_P; + tx |= !parity32(tx) * ADXRS450_P; st->tx = cpu_to_be32(tx); ret = spi_write(st->us, &st->tx, sizeof(st->tx)); -- 2.5.5
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