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Message-Id: <20220510130730.128964573@linuxfoundation.org>
Date: Tue, 10 May 2022 15:07:02 +0200
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org,
Michael Hennerich <michael.hennerich@...log.com>,
Nuno Sá <nuno.sa@...log.com>,
Stable@...r.kernel.org,
Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: [PATCH 4.9 12/66] iio: dac: ad5446: Fix read_raw not returning set value
From: Michael Hennerich <michael.hennerich@...log.com>
commit 89a01cd688d3c0ac983ef0b0e5f40018ab768317 upstream.
read_raw should return the un-scaled value.
Fixes: 5e06bdfb46e8b ("staging:iio:dac:ad5446: Return cached value for 'raw' attribute")
Signed-off-by: Michael Hennerich <michael.hennerich@...log.com>
Reviewed-by: Nuno Sá <nuno.sa@...log.com>
Link: https://lore.kernel.org/r/20220406105620.1171340-1-michael.hennerich@analog.com
Cc: <Stable@...r.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@...wei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
drivers/iio/dac/ad5446.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -171,7 +171,7 @@ static int ad5446_read_raw(struct iio_de
switch (m) {
case IIO_CHAN_INFO_RAW:
- *val = st->cached_val;
+ *val = st->cached_val >> chan->scan_type.shift;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
*val = st->vref_mv;
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