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| author | Michael Hennerich <michael.hennerich@analog.com> | 2010-10-11 18:05:56 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-10-12 08:59:32 -0700 |
| commit | 668413e9e7ad0bc53eeba2465dafd66dbc817996 (patch) | |
| tree | 7374228c650c736d69782a966918d1c27b4f998d /drivers/staging/iio/adc | |
| parent | 349282d82e929e7982ca53510437c0850ab5294a (diff) | |
| download | op-kernel-dev-668413e9e7ad0bc53eeba2465dafd66dbc817996.zip op-kernel-dev-668413e9e7ad0bc53eeba2465dafd66dbc817996.tar.gz | |
staging: iio: adc: ad7476 more list review feedback by Jonathan Cameron
Print in_scale in decimal format.
Kconfig list the names of the parts in full, to ease seraching.
Use st->spi in the call as it is only used the once.
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/staging/iio/adc')
| -rw-r--r-- | drivers/staging/iio/adc/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/staging/iio/adc/ad7476_core.c | 11 |
2 files changed, 6 insertions, 10 deletions
diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig index 71713eed..81a7d45 100644 --- a/drivers/staging/iio/adc/Kconfig +++ b/drivers/staging/iio/adc/Kconfig @@ -51,8 +51,9 @@ config AD7476 tristate "Analog Devices AD7475/6/7/8 AD7466/7/8 and AD7495 ADC driver" depends on SPI help - Say yes here to build support for Analog Devices AD7475/6/7/8, - AD7466/7/8 and AD7495 ADC driver. + Say yes here to build support for Analog Devices + AD7475, AD7476, AD7477, AD7478, AD7466, AD7467, AD7468, AD7495 + SPI analog to digital convertors (ADC). If unsure, say N (but it's safe to say "Y"). To compile this driver as a module, choose M here: the diff --git a/drivers/staging/iio/adc/ad7476_core.c b/drivers/staging/iio/adc/ad7476_core.c index bbd72a6..deb68c8 100644 --- a/drivers/staging/iio/adc/ad7476_core.c +++ b/drivers/staging/iio/adc/ad7476_core.c @@ -26,10 +26,9 @@ static int ad7476_scan_direct(struct ad7476_state *st) { - struct spi_device *spi = st->spi; int ret; - ret = spi_sync(spi, &st->msg); + ret = spi_sync(st->spi, &st->msg); if (ret) return ret; @@ -67,13 +66,9 @@ static ssize_t ad7476_show_scale(struct device *dev, struct iio_dev *dev_info = dev_get_drvdata(dev); struct ad7476_state *st = iio_dev_get_devdata(dev_info); /* Corresponds to Vref / 2^(bits) */ + unsigned int scale_uv = (st->int_vref_mv * 1000) >> st->chip_info->bits; - if ((1 << (st->chip_info->bits + 1)) > st->int_vref_mv) - return sprintf(buf, "%d/2^%d\n", - st->int_vref_mv, st->chip_info->bits); - else - return sprintf(buf, "%d\n", - st->int_vref_mv >> st->chip_info->bits); + return sprintf(buf, "%d.%d\n", scale_uv / 1000, scale_uv % 1000); } static IIO_DEVICE_ATTR(in_scale, S_IRUGO, ad7476_show_scale, NULL, 0); |
