Commit 70e01880 authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Jonathan Cameron

staging:iio:ad7780: Mark channels as unsigned

The values reported by the AD7780 are unsigned with a binary offset:

	0x000000 is negative fullscale
	0x800000 is zeroscale
	0xffffff is positive fullscale

So mark the channel in the channel spec as unsigned rather than signed.
Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 4fcbcf95
...@@ -131,9 +131,10 @@ static const struct ad7780_chip_info ad7780_chip_info_tbl[] = { ...@@ -131,9 +131,10 @@ static const struct ad7780_chip_info ad7780_chip_info_tbl[] = {
.indexed = 1, .indexed = 1,
.channel = 0, .channel = 0,
.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
IIO_CHAN_INFO_SCALE_SHARED_BIT, IIO_CHAN_INFO_SCALE_SHARED_BIT |
IIO_CHAN_INFO_OFFSET_SHARED_BIT,
.scan_type = { .scan_type = {
.sign = 's', .sign = 'u',
.realbits = 24, .realbits = 24,
.storagebits = 32, .storagebits = 32,
.shift = 8, .shift = 8,
...@@ -146,9 +147,10 @@ static const struct ad7780_chip_info ad7780_chip_info_tbl[] = { ...@@ -146,9 +147,10 @@ static const struct ad7780_chip_info ad7780_chip_info_tbl[] = {
.indexed = 1, .indexed = 1,
.channel = 0, .channel = 0,
.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
IIO_CHAN_INFO_SCALE_SHARED_BIT, IIO_CHAN_INFO_SCALE_SHARED_BIT |
IIO_CHAN_INFO_OFFSET_SHARED_BIT,
.scan_type = { .scan_type = {
.sign = 's', .sign = 'u',
.realbits = 20, .realbits = 20,
.storagebits = 32, .storagebits = 32,
.shift = 12, .shift = 12,
......
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