From 4468cb552536731fd85f22a367602e9242a55376 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 4 Jun 2012 11:36:24 +0200 Subject: [PATCH] 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 Acked-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/staging/iio/dac/ad5791.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/drivers/staging/iio/dac/ad5791.c b/drivers/staging/iio/dac/ad5791.c index 4e955ed9451d..82b51a7aa808 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); -- 2.39.2