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Revert "iio: hi8435: cleanup reset gpio" 

This reverts commit 61305664a5.

This commit was applied prematurely and will break some existing
situations where the signal is inverted as part of voltage level
conversions.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Jonathan Cameron 2017-05-28 16:10:21 +01:00
parent 0a178fd732
commit e18788afeb
1 changed files with 5 additions and 7 deletions
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12
drivers/iio/adc/hi8435.c
View File

@ -476,15 +476,13 @@ static int hi8435_probe(struct spi_device *spi)
priv->spi = spi;
reset_gpio = devm_gpiod_get(&spi->dev, NULL, GPIOD_OUT_LOW);
if (!IS_ERR(reset_gpio)) {
/* need >=100ns low pulse to reset chip */
gpiod_set_raw_value_cansleep(reset_gpio, 0);
udelay(1);
gpiod_set_raw_value_cansleep(reset_gpio, 1);
} else {
/* s/w reset chip if h/w reset is not available */
if (IS_ERR(reset_gpio)) {
/* chip s/w reset if h/w reset failed */
hi8435_writeb(priv, HI8435_CTRL_REG, HI8435_CTRL_SRST);
hi8435_writeb(priv, HI8435_CTRL_REG, 0);
} else {
udelay(5);
gpiod_set_value(reset_gpio, 1);
}
spi_set_drvdata(spi, idev);