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=-8.3 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,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 3BAF4C3A59F for ; Sat, 31 Aug 2019 11:39:21 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0538621744 for ; Sat, 31 Aug 2019 11:39:20 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="SS5/b+hp" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0538621744 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=the-dreams.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender:Content-Type:Cc: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: In-Reply-To:MIME-Version:References:Message-ID:Subject:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=afB5BBpRb7datr6Pp2olHuQFl/7D7WthS529UPF5pBo=; b=SS5/b+hpHY0wDUSeibJukqj9t TFPI53P0RkHmy+2OQfIvc/piHhtmmDmThm0OrtOlyKAOjlesxaSkcjrH+ImtGjOYSiIyY9mEPYZym z2+p6AkhkTx4SKL/LA9QWnfNk8kquLSqDj2qSFuqVjy2RQy4dEQIpgggkBS0l1so+WNx01k+yh8QS gX9CEaFh7fmb2kIXOZJVHzFxCYJrLRQrF5Itn7Wf2lg+BlR1KM4QvJxR16ZzImTs/BErhQZQTI+wK GoVLehb2yR5uW066dzKWNQUVEuVW1Bbmg649xKDRYCO3VJsrxHer1cJlR51wpFLeR2EM4MXUm+TSR CA2IcYjQA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i41iv-0001v7-UR; Sat, 31 Aug 2019 11:39:18 +0000 Received: from sauhun.de ([88.99.104.3] helo=pokefinder.org) by bombadil.infradead.org with esmtp (Exim 4.92 #3 (Red Hat Linux)) id 1i41ir-0001ue-6C for linux-arm-kernel@lists.infradead.org; Sat, 31 Aug 2019 11:39:14 +0000 Received: from localhost (p5486C98B.dip0.t-ipconnect.de [84.134.201.139]) by pokefinder.org (Postfix) with ESMTPSA id 4161A2C0093; Sat, 31 Aug 2019 13:39:10 +0200 (CEST) Date: Sat, 31 Aug 2019 13:39:09 +0200 From: Wolfram Sang To: Eugen.Hristev@microchip.com Subject: Re: [PATCH v3 2/9] dt-bindings: i2c: add bindings for i2c analog and digital filter Message-ID: <20190831113909.GA1032@ninjato> References: <1562678049-17581-1-git-send-email-eugen.hristev@microchip.com> <1562678049-17581-3-git-send-email-eugen.hristev@microchip.com> MIME-Version: 1.0 In-Reply-To: <1562678049-17581-3-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-20190831_043913_377290_81EA9C62 X-CRM114-Status: GOOD ( 14.68 ) 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, linux-kernel@vger.kernel.org, pierre-yves.mordret@st.com, Ludovic.Desroches@microchip.com, robh+dt@kernel.org, linux-i2c@vger.kernel.org, peda@axentia.se, linux-arm-kernel@lists.infradead.org Content-Type: multipart/mixed; boundary="===============3092222965330315732==" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org --===============3092222965330315732== Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="fUYQa+Pmc3FrFX/N" Content-Disposition: inline --fUYQa+Pmc3FrFX/N Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Jul 09, 2019 at 01:19:33PM +0000, Eugen.Hristev@microchip.com wrote: > From: Eugen Hristev >=20 > 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. The width length can be specified in nanosec= onds. >=20 > Signed-off-by: Eugen Hristev > --- > Documentation/devicetree/bindings/i2c/i2c.txt | 11 +++++++++++ > 1 file changed, 11 insertions(+) >=20 > diff --git a/Documentation/devicetree/bindings/i2c/i2c.txt b/Documentatio= n/devicetree/bindings/i2c/i2c.txt > index 44efafd..a2d31aa 100644 > --- a/Documentation/devicetree/bindings/i2c/i2c.txt > +++ b/Documentation/devicetree/bindings/i2c/i2c.txt > @@ -55,6 +55,17 @@ wants to support one of the below features, it should = adapt the bindings below. > Number of nanoseconds the SDA signal takes to fall; t(f) in the I2C > specification. > =20 > +- i2c-ana-filter > + Enable analog filter for i2c lines. > + > +- i2c-dig-filter > + Enable digital filter for i2c lines. Would you be OK with writing out 'analog' and 'digital' in full form? The abrreviation doesn't save us much, I'd think, and I didn't find similar wording in existing bindings. > + > +- i2c-filter-width-ns > + Width of spikes which can be filtered by either digital or analog > + filters (i2c-ana-filtr or i2c-dig-filtr). This width is specified > + in nanoseconds. > + > - interrupts > interrupts used by the device. > =20 > --=20 > 2.7.4 >=20 --fUYQa+Pmc3FrFX/N Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAl1qXF0ACgkQFA3kzBSg KbbKJxAApyKizr/4AG2mt0cdPc6Pg5Q4whRHl0WPC6X1dG4zB0aR3btEB3esTmWY FCyB0bqxsn64ZFqHpSfnF6piDxSu7iNrtxh+ltx2j3E8SyaOASeP29gckhaJoSsH U2vUtPYg+I/9L6bCx8Kl6ZAf3EnXrRDFxIJU1lYGfeWbqXfrLNQgvtpcjx8jnADn YRDpyeezNLnD8Nz3h321Zt9d/dnkeW2kb6x78Sstg0MVEskiGY97dioCbCzR59C6 QvAl4z/vlSMCOywBDplMKVpzYieCxD3IhE/BlydvvEwEgUmJuZWKfJDxURSuve4K kll9//TsFaSSDZd4mZICUiTJurdmCskq8GFV4GQQZEO/J9viPfj61lZmtl6diMcY eXHIWRWns+85mPJuKhdLpsCHv7Peki+u95K4lKOff4oErj9whAt1fEQ93vvz9oXF 2ciZiio4Wx8KokmGl6usNgugA9JMxJtLbJ1sNIUmykCa4Wdso3E02k6vcF0L6Sfx uMEvNpxULD2zWe3yMX/LM2qkMjfadgloGJWaYI9KymKk9F5J9PjQ4GrXOCO1JmIq qtYFpzw3sJ5EksYq/p21JOFSAK0x/1Cw/pjTOUcsXVgaRstIwgm5k+Vatl9C111+ JYRETvHiVYuj2qWUIboXY8TWkQuZaFCojPFv6e/kUQ6xgaPIIJA= =WvKa -----END PGP SIGNATURE----- --fUYQa+Pmc3FrFX/N-- --===============3092222965330315732== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel --===============3092222965330315732==--