From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 21A44C4CEC9 for ; Tue, 17 Sep 2019 14:28:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E7A77218AE for ; Tue, 17 Sep 2019 14:28:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1568730492; bh=2zMHoVzy+C/RQ2Nt4a03FxXUQiK+VVUGEUakoFAgmbw=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=TLL4sPAjFaR037ReoXz7ep7vp4CDl0P8INFBCg1IE+NyibODml2ZEI8dG67Qevw7s Yauu+31oJBppKETZtOAkRHtvg1Wp+zAqhrDsxFhudDrZI8zULndjq5KfP08qJUF/Qj 8yfqY6OepXiGH2T1TtsmIinQACGh5P0PUpz/M0SY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727979AbfIQO2L (ORCPT ); Tue, 17 Sep 2019 10:28:11 -0400 Received: from mail-ot1-f66.google.com ([209.85.210.66]:39479 "EHLO mail-ot1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725922AbfIQO2K (ORCPT ); Tue, 17 Sep 2019 10:28:10 -0400 Received: by mail-ot1-f66.google.com with SMTP id s22so3223537otr.6; Tue, 17 Sep 2019 07:28:10 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=dq5KSLPgssnZJkXSQ/7XfJ9L3JyQqyDlXS5uQBl4Tyc=; b=qADoi4KGGeekjNr8hgtMqgYOoGHzwHJMzF8P1jd9dsBt1oLQ7HOzkKpIEUuA87zrCW N1VCK1XSwboXXHV02Rg02OeleieoFWqonHWWEOWjPQPCm8gYKvUm5UXhvjm3n2itd+23 3DmnTlOvPoNMakBBClXsAk4snphNRDJaRQyR6GXzRWV3c6pkM26iorxB7JB2t19Vx64D 2R1bf6kR2X/m8fGy2JSgfDNOkjVu4MX87L0LqLLCB4KvGLCfZ5pzia5MZ5mTSr9Y3pY2 2DLIhI3PLjanV8cnzaAiPzx5niP6kSHhAfJtdTsAO3xEswgrYfVz0mtzof7JJzD7KXLq DZxg== X-Gm-Message-State: APjAAAX0TyZ/nLmePMje8wYp4uNilREpVw8CKZSRHaCBMhgjN23te30O VlCkDPRwgZE8JU6sNoB13qlCKMY= X-Google-Smtp-Source: APXvYqyKeVBb7FDox3duyXtElvoxiAR3ydGskKPrIwTLgPjUgRPdZc4Aekd8EIPkn7mTC8YkHehpsQ== X-Received: by 2002:a9d:7b4d:: with SMTP id f13mr2740477oto.365.1568730489731; Tue, 17 Sep 2019 07:28:09 -0700 (PDT) Received: from localhost (24-155-109-49.dyn.grandenetworks.net. [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 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 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-Type: text/plain; charset=us-ascii 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) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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