From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sergei Shtylyov Subject: Re: [RFC][PATCH] at91_ide driver Date: Thu, 22 Jan 2009 15:16:54 +0300 Message-ID: <497863B6.4040306@ru.mvista.com> References: <200901141345.42583.stf_xl@wp.pl> <4975B065.6030705@ru.mvista.com> <200901221212.55528.stf_xl@wp.pl> <49786138.20809@ru.mvista.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from h155.mvista.com ([63.81.120.155]:24240 "EHLO imap.sh.mvista.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752503AbZAVMRA (ORCPT ); Thu, 22 Jan 2009 07:17:00 -0500 In-Reply-To: <49786138.20809@ru.mvista.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Stanislaw Gruszka Cc: Andrew Victor , Nicolas Ferre , Haavard Skinnemoen , linux-ide@vger.kernel.org Hello, I wrote: >>>> + t9 = t2i - t1; >>>> >>> It more sense to calculate such things *after* quantizing the >>> timings with calc_mck_cycles()... >>> >> Why? >> > > More precise result -- matching the clock being used. However, I don't understand now why you need to stretch t9... MBR, Sergei