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[24.155.109.49]) by smtp.gmail.com with ESMTPSA id 94sm718166oty.44.2019.09.17.07.28.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Sep 2019 07:28:08 -0700 (PDT) Date: Tue, 17 Sep 2019 09:28:08 -0500 From: Rob Herring To: Eugen.Hristev@microchip.com Subject: Re: [PATCH v5 2/9] dt-bindings: i2c: add bindings for i2c analog and digital filter 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-Disposition: inline In-Reply-To: <1568189911-31641-3-git-send-email-eugen.hristev@microchip.com> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190917_072812_139909_98CDED9A X-CRM114-Status: GOOD ( 11.02 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, alexandre.belloni@bootlin.com, wsa@the-dreams.de, linux-kernel@vger.kernel.org, Ludovic.Desroches@microchip.com, linux-i2c@vger.kernel.org, peda@axentia.se, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.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 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel