diff options
| author | Peter Meerwald <pmeerw@pmeerw.net> | 2014-08-20 00:43:00 +0200 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2014-09-14 21:26:08 +0200 |
| commit | 6377aa496a0bc40af4f66574c813bb9a807a7e3a (patch) | |
| tree | 252856251cc5c6368e4a221a30e0ec890a2c2b0b /drivers/iio | |
| parent | iio:bma180: Introduce part-specific _config() and disable() code (diff) | |
| download | linux-6377aa496a0bc40af4f66574c813bb9a807a7e3a.tar.xz linux-6377aa496a0bc40af4f66574c813bb9a807a7e3a.zip | |
iio:bma180: Prepare for accelerometer channels with different resolutions
allow to specify channels resolution and compute shift assuming
16-bit registers and MSB allocation
Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/accel/bma180.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c index 933645547f82..f4d280456dd7 100644 --- a/drivers/iio/accel/bma180.c +++ b/drivers/iio/accel/bma180.c @@ -476,7 +476,7 @@ static const struct iio_chan_spec_ext_info bma180_ext_info[] = { { }, }; -#define BMA180_ACC_CHANNEL(_axis) { \ +#define BMA180_ACC_CHANNEL(_axis, _bits) { \ .type = IIO_ACCEL, \ .modified = 1, \ .channel2 = IIO_MOD_##_axis, \ @@ -486,9 +486,9 @@ static const struct iio_chan_spec_ext_info bma180_ext_info[] = { .scan_index = AXIS_##_axis, \ .scan_type = { \ .sign = 's', \ - .realbits = 14, \ + .realbits = _bits, \ .storagebits = 16, \ - .shift = 2, \ + .shift = 16 - _bits, \ }, \ .ext_info = bma180_ext_info, \ } @@ -506,9 +506,9 @@ static const struct iio_chan_spec_ext_info bma180_ext_info[] = { } static const struct iio_chan_spec bma180_channels[] = { - BMA180_ACC_CHANNEL(X), - BMA180_ACC_CHANNEL(Y), - BMA180_ACC_CHANNEL(Z), + BMA180_ACC_CHANNEL(X, 14), + BMA180_ACC_CHANNEL(Y, 14), + BMA180_ACC_CHANNEL(Z, 14), BMA180_TEMP_CHANNEL, IIO_CHAN_SOFT_TIMESTAMP(4), }; |