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=-3.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no 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 806F4C433F5 for ; Tue, 14 Sep 2021 10:41:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 60E696113E for ; Tue, 14 Sep 2021 10:41:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231652AbhINKnE (ORCPT ); Tue, 14 Sep 2021 06:43:04 -0400 Received: from www.zeus03.de ([194.117.254.33]:40356 "EHLO mail.zeus03.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231623AbhINKnE (ORCPT ); Tue, 14 Sep 2021 06:43:04 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=sang-engineering.com; h= date:from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=k1; bh=vpUDLeb3xbEacAs9tk0wEn9tgTYj R9+hLO0MahfO2Bg=; b=gsSZcLkWI7aBJT0R00tt08InXRdOtCz+Xh3EDhvRa40o S7tPdnCkebfP9Vq/PKpCkGRiyxWZ999bS7yWlnRmLOeWSZY5zUR2WARJS+Q7o5PE LmWHy2jQLBQY0s/EjtdeIADzsu92HK/1LbQIiLEEgvRjyN6pcWgLEzSP3DLOpGU= Received: (qmail 359425 invoked from network); 14 Sep 2021 12:41:44 +0200 Received: by mail.zeus03.de with ESMTPSA (TLS_AES_256_GCM_SHA384 encrypted, authenticated); 14 Sep 2021 12:41:44 +0200 X-UD-Smtp-Session: l3s3148p1@f9xQOvLLLMggAwDPXxMyACCkRmvQydX8 Date: Tue, 14 Sep 2021 12:41:43 +0200 From: Wolfram Sang To: Geert Uytterhoeven Cc: Adam Ford , Linux-Renesas , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" Subject: Re: [PATCH] arm64: dts: renesas: beacon: Fix i2c2 speed calcuation Message-ID: Mail-Followup-To: Wolfram Sang , Geert Uytterhoeven , Adam Ford , Linux-Renesas , "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" References: <20210825122757.91133-1-aford173@gmail.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="g5VrGWIXPwwyL3HX" Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org --g5VrGWIXPwwyL3HX Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Wed, Aug 25, 2021 at 02:47:21PM +0200, Geert Uytterhoeven wrote: > CC Wolfram >=20 > On Wed, Aug 25, 2021 at 2:28 PM Adam Ford wrote: > > The desired i2c2 speed is 400KHz, but when measured on a scope, it > > is incorrect. The driver can use the i2c-scl-rising-time-ns to help > > calculate the proper setting to get exactly 400KHz. The question for me is: Has it been measured that SCL rising time is really 50ns or has it been measured that the bus clock is now exactly 400kHz? --g5VrGWIXPwwyL3HX Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEOZGx6rniZ1Gk92RdFA3kzBSgKbYFAmFAfGcACgkQFA3kzBSg KbaSkQ/7BBYnAYh+wl5O9FA8ERSetX+nLjLgjb7A8Bl7oiYjZAthPyH2t/Ew2CZh cIrSD4ACnZLxeElQcpLKCG3Qu5TlGxDdLJ5iMZOSWr58WlYzq1WgvXJhESC8pu1a 66K8DMAX9N8mnp3kw3+546ljteQjBFAeSSLz4bEJmNNmx0V3glWanVMpuaKtzHMF LBq4Lp9WmsWWWfhDUqwGzFtXYwmVuvq/9ty+KV4tgJfUzBhxIyJMutMvDIiPVUBQ 7U31AujmqoDDMHqzwkGb3e+WhA0WRuigeQtCaq8o6WolU8v/KU4BaGyPVsTIt/J3 Yc36AHKzeWhimWdmFB6qNL0IUwT0KVIVCzMWUPWol//T3krDGIDlqLTNPzyRLuTg 2b5baEaAPM+Oj69iV9v8FuoZj1JDLEJnwDte5kFFSNhIJcNkE0ecwbGa7Y94z7ru y/T0Wm+HbjXxporiZUJuwBGJH+E0eI9FzDyVQbCLm3UFtBuhmGHRQzCgG8YPhD+p 1egpkV77YkzDwqdrmMgw+tsJ5jiWZeqIkWglZj8ueG+cmjaNORzkV+7I+liarxry kjSB3NOxXlQf7RNpvkxdSybrgWgJI29RXsNSQjuLcduJ8hxMppeB9B0ORzCyu1Lw 88GvnTbGDVCpBVdrbJVUDxj69TliNutgU1w5Gd4UpBmWWshPX4I= =KkZi -----END PGP SIGNATURE----- --g5VrGWIXPwwyL3HX--