On Wed, Sep 11, 2019 at 08:24:20AM +0000, Eugen.Hristev@xxxxxxxxxxxxx wrote: > From: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx> > > Some i2c controllers have a built-in digital or analog filter. > This is specifically required depending on the hardware PCB/board. > Some controllers also allow specifying the maximum width of the > spikes that can be filtered for digital filter. The width length can be > specified in nanoseconds. > Analog filters can be configured to have a cutoff frequency (low-pass filter). > This frequency can be specified in Hz. > Added an optional property for such types of analog filters. > > Signed-off-by: Eugen Hristev <eugen.hristev@xxxxxxxxxxxxx> > --- > Documentation/devicetree/bindings/i2c/i2c.txt | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
