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Commit 10c7a314 authored by Eugen Hristev's avatar Eugen Hristev Committed by Jonathan Cameron
Browse files

iio: adc: at91-sama5d2_adc: ack DRDY irq in direct mode 



Need to acknowledge DRDY irq in direct mode/ software
triggered mode. Otherwise, on the next conversion, overrun
flag will be raised, which is not a correct state.
This doesn't affect the functionality, but will generate
possible incorrect overrun reports.

Signed-off-by: default avatarEugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 073c6620

drivers/iio/adc/at91-sama5d2_adc.c

+3 −0
Original line number Diff line number Diff line
@@ -786,6 +786,9 @@ static int at91_adc_read_raw(struct iio_dev *indio_dev, 
		at91_adc_writel(st, AT91_SAMA5D2_IDR, BIT(chan->channel));

		at91_adc_writel(st, AT91_SAMA5D2_CHDR, BIT(chan->channel));



		/* Needed to ACK the DRDY interruption */

		at91_adc_readl(st, AT91_SAMA5D2_LCDR);



		mutex_unlock(&st->lock);



		iio_device_release_direct_mode(indio_dev);