Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

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

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

drivers/staging/iio/adc/ad7780.c

+6 −4
Original line number Diff line number Diff line
@@ -131,9 +131,10 @@ static const struct ad7780_chip_info ad7780_chip_info_tbl[] = { 
			.indexed = 1,

			.channel = 0,

			.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 = {

				.sign = 's',

				.sign = 'u',

				.realbits = 24,

				.storagebits = 32,

				.shift = 8,
@@ -146,9 +147,10 @@ static const struct ad7780_chip_info ad7780_chip_info_tbl[] = { 
			.indexed = 1,

			.channel = 0,

			.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 = {

				.sign = 's',

				.sign = 'u',

				.realbits = 20,

				.storagebits = 32,

				.shift = 12,