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| author | Dan Carpenter <dan.carpenter@oracle.com> | 2011-11-22 10:39:15 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-11-26 16:55:38 -0800 |
| commit | c1a752883dda6287b075215e419a77359f33edff (patch) | |
| tree | c2fff950723f16d051056fd83e586f0d7c5f7201 /drivers/staging/iio/adc | |
| parent | 5ae8f440909dc7fddccf7f408adbacf308049691 (diff) | |
| download | op-kernel-dev-c1a752883dda6287b075215e419a77359f33edff.zip op-kernel-dev-c1a752883dda6287b075215e419a77359f33edff.tar.gz | |
Staging: iio: fix endian conversion in ad7298_scan_direct()
"tmp" is used to store the output from cpu_to_be16() so it should be
a __be16 bit type.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/iio/adc')
| -rw-r--r-- | drivers/staging/iio/adc/ad7298_core.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/staging/iio/adc/ad7298_core.c b/drivers/staging/iio/adc/ad7298_core.c index 093b2b2..3ccd4b4 100644 --- a/drivers/staging/iio/adc/ad7298_core.c +++ b/drivers/staging/iio/adc/ad7298_core.c @@ -69,27 +69,28 @@ static int ad7298_scan_direct(struct ad7298_state *st, unsigned ch) static int ad7298_scan_temp(struct ad7298_state *st, int *val) { int tmp, ret; + __be16 buf; - tmp = cpu_to_be16(AD7298_WRITE | AD7298_TSENSE | + buf = cpu_to_be16(AD7298_WRITE | AD7298_TSENSE | AD7298_TAVG | st->ext_ref); - ret = spi_write(st->spi, (u8 *)&tmp, 2); + ret = spi_write(st->spi, (u8 *)&buf, 2); if (ret) return ret; - tmp = 0; + buf = cpu_to_be16(0); - ret = spi_write(st->spi, (u8 *)&tmp, 2); + ret = spi_write(st->spi, (u8 *)&buf, 2); if (ret) return ret; usleep_range(101, 1000); /* sleep > 100us */ - ret = spi_read(st->spi, (u8 *)&tmp, 2); + ret = spi_read(st->spi, (u8 *)&buf, 2); if (ret) return ret; - tmp = be16_to_cpu(tmp) & RES_MASK(AD7298_BITS); + tmp = be16_to_cpu(buf) & RES_MASK(AD7298_BITS); /* * One LSB of the ADC corresponds to 0.25 deg C. |
