Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752458AbcDUQUt (ORCPT ); Thu, 21 Apr 2016 12:20:49 -0400 Received: from mail-by2on0128.outbound.protection.outlook.com ([207.46.100.128]:4719 "EHLO na01-by2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751240AbcDUQUq (ORCPT ); Thu, 21 Apr 2016 12:20:46 -0400 Authentication-Results: spf=pass (sender IP is 204.77.163.247) smtp.mailfrom=garmin.com; ti.com; dkim=none (message not signed) header.d=none;ti.com; dmarc=bestguesspass action=none header.from=garmin.com; Subject: Re: [PATCH] OMAPDSS: HDMI5: Change DDC timings To: Tomi Valkeinen , , , , References: <1461196973-20370-1-git-send-email-Linux.HWI@garmin.com> <5718E5F3.2080504@ti.com> CC: "Lodes, Jim" , "J.D. Schroeder" From: "J.D. 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Did you measure the rise & fall times? Do you get > more or less exactly 100kHz with the new times? Rise time is around 600 nsec and fall time is around 140 nsec. When the clock frequency is measured we get right at 100 kHz and the rise and fall times are negligible. When the HDMI certification test equipment is attached it is just slightly less than 100 kHz, which is okay. The HDMI specification states less than 100 kHz is acceptable not greater. If a particular system has slower rise and fall times then that should be okay also. This change ensures that we stay below 100 kHz regardless of the rise and fall times. >> Signed-off-by: Lodes, Jim > > The email format should be > > Firstname Lastname Yes. I'll fix the email and resubmit.