diff options
| author | Stephan Gerhold <[email protected]> | 2021-05-26 11:44:07 +0200 |
|---|---|---|
| committer | Jonathan Cameron <[email protected]> | 2021-06-13 17:00:17 +0100 |
| commit | 8090d67421ddab0ae932abab5a60200598bf0bbb (patch) | |
| tree | 4af1db6699ad5720025d69014c94197779046986 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | 93466212b9329616af2e4c7e5994d507d72e254d (diff) | |
iio: accel: bma180: Fix BMA25x bandwidth register values
According to the BMA253 datasheet [1] and BMA250 datasheet [2] the
bandwidth value for BMA25x should be set as 01xxx:
"Settings 00xxx result in a bandwidth of 7.81 Hz; [...]
It is recommended [...] to use the range from ´01000b´ to ´01111b´
only in order to be compatible with future products."
However, at the moment the drivers sets bandwidth values from 0 to 6,
which is not recommended and always results into 7.81 Hz bandwidth
according to the datasheet.
Fix this by introducing a bw_offset = 8 = 01000b for BMA25x,
so the additional bit is always set for BMA25x.
[1]: https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bma253-ds000.pdf
[2]: https://datasheet.octopart.com/BMA250-Bosch-datasheet-15540103.pdf
Cc: Peter Meerwald <[email protected]>
Fixes: 2017cff24cc0 ("iio:bma180: Add BMA250 chip support")
Signed-off-by: Stephan Gerhold <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Cc: <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
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