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Staging: iio: adc: Refine delay computation

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As per comment in function ad7280_delay, conversion delay may take up
to 250us. We cannot rely on msleep for this because it may sleep longer
than intended time for values less than 20ms, so use usleep_range instead.

Problem detected using checkpatch.pl.

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vaishali Thakkar
2014-10-03 09:16:53 +05:30
committed by Greg Kroah-Hartman
parent 7ba7528911
commit e3fe42b149
1 changed files with 1 additions and 1 deletions
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drivers/staging/iio/adc/ad7280a.c
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@@ -188,7 +188,7 @@ static void ad7280_delay(struct ad7280_state *st)
if (st->readback_delay_us < 50)
udelay(st->readback_delay_us);
else
msleep(1);
usleep_range(250, 500);
}
static int __ad7280_read32(struct ad7280_state *st, unsigned *val)