1. 27 Aug, 2015 1 commit
    • Crt Mori's avatar
      iio: mlx90614: Implement filter configuration · 764589b6
      Crt Mori authored
      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: default avatarCrt Mori <cmo@melexis.com>
      Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
      764589b6
  2. 24 Aug, 2015 1 commit
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