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iio: adc: ad7124: Set IRQ type to falling

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Ad7124 data-sheet specifies that the falling edge
of the DOUT line should be used for an interrupt.
The current irq flag (IRQF_TRIGGER_LOW) used will
cause unwanted behaviour. When enabling the interrupt
it will fire once because the DOUT line is already low.
This will make the driver to read an unfinished conversion
from the chip.

This patch sets the irq type to the one specified in
the data-sheet.

Signed-off-by: Alexandru Tachici <alexandru.tachici@analog.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Alexandru Tachici 2020-01-13 12:26:53 +02:00 committed by Jonathan Cameron
parent da4d3d6bb9
commit 79ef91493f
1 changed files with 1 additions and 1 deletions
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2
drivers/iio/adc/ad7124.c
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@ -225,7 +225,7 @@ static const struct ad_sigma_delta_info ad7124_sigma_delta_info = {
.addr_shift = 0,
.read_mask = BIT(6),
.data_reg = AD7124_DATA,
.irq_flags = IRQF_TRIGGER_LOW,
.irq_flags = IRQF_TRIGGER_FALLING,
};
static int ad7124_set_channel_odr(struct ad7124_state *st,