From 764589b688a1b087b5ff6c1e99f7cd57a5241395 Mon Sep 17 00:00:00 2001 From: Crt Mori Date: Mon, 17 Aug 2015 19:34:33 +0200 Subject: 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 Signed-off-by: Jonathan Cameron --- MAINTAINERS | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'MAINTAINERS') diff --git a/MAINTAINERS b/MAINTAINERS index fb7d3b6..d8bf36d 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -6757,6 +6757,13 @@ S: Supported F: include/linux/mlx5/ F: drivers/infiniband/hw/mlx5/ +MELEXIS MLX90614 DRIVER +M: Crt Mori +L: linux-iio@vger.kernel.org +W: http://www.melexis.com +S: Supported +F: drivers/iio/temperature/mlx90614.c + MN88472 MEDIA DRIVER M: Antti Palosaari L: linux-media@vger.kernel.org -- cgit v1.1