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[v2,4/5] iio: adc: ad7173: Clear append status bit

Message ID 20240527-ad7173-fixes-v2-4-8501b66adb1f@analog.com (mailing list archive)
State Superseded
Headers show
Series AD7173 fixes | expand

Commit Message

Dumitru Ceclan via B4 Relay May 27, 2024, 3:19 p.m. UTC 
From: Dumitru Ceclan <dumitru.ceclan@analog.com>

The previous value of the append status bit was not cleared before
setting the new value. This caused the bit to remain set after enabling
buffered mode for multiple channels and not permit further buffered
reads from a single channel after the fact.

Fixes: 8eb903272f75 ("iio: adc: ad7173: add AD7173 driver")
Signed-off-by: Dumitru Ceclan <dumitru.ceclan@analog.com>
---
 drivers/iio/adc/ad7173.c | 1 +
 1 file changed, 1 insertion(+)
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Patch

diff --git a/drivers/iio/adc/ad7173.c b/drivers/iio/adc/ad7173.c
index eb512878c30e..e66a137a76be 100644
--- a/drivers/iio/adc/ad7173.c
+++ b/drivers/iio/adc/ad7173.c
@@ -543,6 +543,7 @@  static int ad7173_append_status(struct ad_sigma_delta *sd, bool append)
 	unsigned int interface_mode = st->interface_mode;
 	int ret;
 
+	interface_mode &= ~AD7173_INTERFACE_DATA_STAT;
 	interface_mode |= AD7173_INTERFACE_DATA_STAT_EN(append);
 	ret = ad_sd_write_reg(&st->sd, AD7173_REG_INTERFACE_MODE, 2, interface_mode);
 	if (ret)