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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_MUTT 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 694C6C48BD6 for ; Thu, 27 Jun 2019 13:34:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4070F205ED for ; Thu, 27 Jun 2019 13:34:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727007AbfF0Neq (ORCPT ); Thu, 27 Jun 2019 09:34:46 -0400 Received: from sauhun.de ([88.99.104.3]:38636 "EHLO pokefinder.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726832AbfF0Neo (ORCPT ); Thu, 27 Jun 2019 09:34:44 -0400 Received: from localhost (p54B33130.dip0.t-ipconnect.de [84.179.49.48]) by pokefinder.org (Postfix) with ESMTPSA id 230072C3112; Thu, 27 Jun 2019 15:34:41 +0200 (CEST) Date: Thu, 27 Jun 2019 15:34:40 +0200 From: Wolfram Sang To: Eugen.Hristev@microchip.com Cc: alexandre.belloni@bootlin.com, peda@axentia.se, robh+dt@kernel.org, mark.rutland@arm.com, Nicolas.Ferre@microchip.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, linux-stm32@st-md-mailman.stormreply.com, pierre-yves.mordret@st.com Subject: Re: I2C filtering (was Re: [PATCH v2 6/9] dt-bindings: i2c: at91: add binding for enable-ana-filt) Message-ID: <20190627133440.GA7158@ninjato> References: <1561449642-26956-1-git-send-email-eugen.hristev@microchip.com> <1561449642-26956-7-git-send-email-eugen.hristev@microchip.com> <4e81d3c9-25f3-ca6e-f2d5-17fad5905bb8@axentia.se> <84628b5e-bea7-7d91-f790-f3a2650040fa@microchip.com> <20190625093156.GF5690@piout.net> <20190625095533.GC1688@kunai> <20190627132200.GK3692@piout.net> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="7AUc2qLy4jB3hD7Z" Content-Disposition: inline In-Reply-To: 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 --7AUc2qLy4jB3hD7Z Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable > > Apart from enabling the filter there is indeed one configuration > > setting, the maximum pulse width of spikes to be suppressed by the input > > filter. Yup, this is what I anticipated. > This is a number 0 to 7 (3 bits) that represents the width of the spike= =20 > in periph clock cycles. For a generic binding, we would need some time-value as a parameter and convert it to clock cycles in the driver then, I'd think. > I am looking to see what is PADFCFG , as it's related to the PAD analog= =20 > filter configuration. It may be unused by the filter. Thanks! --7AUc2qLy4jB3hD7Z Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAl0UxewACgkQFA3kzBSg KbbBxw/+PKlsndFyCPTuBvbsZv6QYFNcJSE6IMOwxnfLjInOoY8cAl/2uc55yh8K uVXgbOdp9bQEtjjgva8oMOZdT+8N6EOqm+Bjqu2Nw44UsQ6HQXUM+LJU9J35Me4T USjBCsZL+3rf9SUBq4xDSUa05wBuKN0ZC1Mss55kkBD/R4ULrd9VoVx0rpSe6oAF /XQeBDsWhqDG15zoZysXgQ/he7kLCGgtPf+dz0vA80JefsflXEyrr3Al9rggVP/F gK3+4UqBE8YLn0Iepd0HKsk7z3Qs7uLfjZex7fbd9Ul81JCN2yHn4PFIuV+NJf86 C7Nh7zYojp41vxBF1llxMvm+2E4z23KkQ/SKmTqOshOxxEcYH2OdfvuWPyLBctHr Ex3IKFo/wESvBs12NPz1AAC/EadHG6elpaHNkdNaGjWMA4eIchDF+vaVXVsr34gT FYSfwVLHx4WZEKBzF+jWds5EBUbNWhSF0+e5vBOkL6BsGJpU5PTgxuvbO3L6jqCj nbCIkxFFM+pJCcwnb1eaDG9I9IUb1962hciz4tjFWMLog+QJdtWrwSk+az1237Jc 0okdeuwS1ztxn84GLBuELSkDizc0GlYEJbz0+ICd2ZLXXFRwytpC/b3Sj/QgGOWM GNZtPtRGoadH2jxHySVRG+j9veFm1US51dR4b25SHUzlWyAR62A= =tCqi -----END PGP SIGNATURE----- --7AUc2qLy4jB3hD7Z--