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authorCrt Mori <cmo@melexis.com>2015-08-17 19:34:33 +0200
committerJonathan Cameron <jic23@kernel.org>2015-08-27 20:37:02 +0200
commit764589b688a1b087b5ff6c1e99f7cd57a5241395 (patch)
tree745b841b3fb4a2cad70a38c9b564172a9299605b /kernel/stacktrace.c
parentiio: humidity: si7020: replaced bitmask on humidity values with range check (diff)
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iio: mlx90614: Implement filter configuration
Implemented Low pass 3db frequency filter which configures FIR and IIR values within the configuration register of EEPROM. For more standardized interface we have fixed the FIR value to 1024, while changes in IIR value are directly connected to filter responses. The new datasheet version will provide a simplified table (also in reStructured text format below) with this change, to provide quick overview of possible settings. Below sensor timings (bandwidth) are calculated for 3db frequency low pass filter. +--------------------+-----------------+ | Filter setting (%) | Band width (Hz) | | (rounded to 1.0) | | +====================+=================+ | 13 | 0.15 | +--------------------+-----------------+ | 17 | 0.20 | +--------------------+-----------------+ | 25 | 0.31 | +--------------------+-----------------+ | 50 | 0.77 | +--------------------+-----------------+ | 57 | 0.86 | +--------------------+-----------------+ | 67 | 1.10 | +--------------------+-----------------+ | 80 | 1.53 | +--------------------+-----------------+ | 100 | 7.23 | +--------------------+-----------------+ The diff is made towards togreg branch. Added myself to MAINTAINERS and authors as per discussion with Jonathan. Signed-off-by: Crt Mori <cmo@melexis.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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