From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rob Herring Subject: Re: [PATCH v5 2/9] dt-bindings: i2c: add bindings for i2c analog and digital filter Date: Tue, 17 Sep 2019 09:28:08 -0500 Message-ID: <20190917142808.GA7900@bogus> References: <1568189911-31641-1-git-send-email-eugen.hristev@microchip.com> <1568189911-31641-3-git-send-email-eugen.hristev@microchip.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1568189911-31641-3-git-send-email-eugen.hristev@microchip.com> Sender: linux-kernel-owner@vger.kernel.org To: Eugen.Hristev@microchip.com Cc: wsa@the-dreams.de, peda@axentia.se, mark.rutland@arm.com, Ludovic.Desroches@microchip.com, linux-i2c@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, alexandre.belloni@bootlin.com, Nicolas.Ferre@microchip.com List-Id: devicetree@vger.kernel.org On Wed, Sep 11, 2019 at 08:24:20AM +0000, Eugen.Hristev@microchip.com wrote: > From: Eugen Hristev > > 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 > --- > Documentation/devicetree/bindings/i2c/i2c.txt | 18 ++++++++++++++++++ > 1 file changed, 18 insertions(+) Reviewed-by: Rob Herring