diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2012-06-04 09:36:24 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-05 04:47:32 (GMT) |
| commit | 4468cb552536731fd85f22a367602e9242a55376 (patch) | |
| tree | 38dda3f6caf2d46452fc2cbf3f13a0669db5c7e6 /drivers | |
| parent | 2490594e89c7286585daeaf05a06b6cd7b5c8876 (diff) | |
| download | linux-fsl-qoriq-4468cb552536731fd85f22a367602e9242a55376.tar.xz | |
staging:iio:dac:ad5791: Use strtobool for boolean values
Use strtobool for parsing the powerdown value instead of strict_strtol, since
the powerdown attribute is a boolean value.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/iio/dac/ad5791.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/drivers/staging/iio/dac/ad5791.c b/drivers/staging/iio/dac/ad5791.c index 4e955ed..82b51a7 100644 --- a/drivers/staging/iio/dac/ad5791.c +++ b/drivers/staging/iio/dac/ad5791.c @@ -114,25 +114,23 @@ static ssize_t ad5791_write_dac_powerdown(struct iio_dev *indio_dev, uintptr_t private, const struct iio_chan_spec *chan, const char *buf, size_t len) { - long readin; + bool pwr_down; int ret; struct ad5791_state *st = iio_priv(indio_dev); - ret = strict_strtol(buf, 10, &readin); + ret = strtobool(buf, &pwr_down); if (ret) return ret; - if (readin == 0) { - st->pwr_down = false; + if (!pwr_down) { st->ctrl &= ~(AD5791_CTRL_OPGND | AD5791_CTRL_DACTRI); - } else if (readin == 1) { - st->pwr_down = true; + } else { if (st->pwr_down_mode == AD5791_DAC_PWRDN_6K) st->ctrl |= AD5791_CTRL_OPGND; else if (st->pwr_down_mode == AD5791_DAC_PWRDN_3STATE) st->ctrl |= AD5791_CTRL_DACTRI; - } else - ret = -EINVAL; + } + st->pwr_down = pwr_down; ret = ad5791_spi_write(st->spi, AD5791_ADDR_CTRL, st->ctrl); |