From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Menon, Nishanth" Subject: Re: Duration of mdelay and udelay depends on MPU frequency in SMP Date: Mon, 13 Jun 2011 23:19:40 -0500 Message-ID: References: <4DCB8158.8060507@ti.com> <4DF6D46B.90806@codeaurora.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Return-path: Received: from na3sys009aog109.obsmtp.com ([74.125.149.201]:49378 "EHLO na3sys009aog109.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750844Ab1FNEUE (ORCPT ); Tue, 14 Jun 2011 00:20:04 -0400 Received: by mail-wy0-f170.google.com with SMTP id 34so7454147wyb.1 for ; Mon, 13 Jun 2011 21:20:02 -0700 (PDT) In-Reply-To: <4DF6D46B.90806@codeaurora.org> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Stephen Boyd Cc: Santosh Shilimkar , Saquib , linux-omap , "linux-arm-kernel@lists.infradead.org" , Russell King - ARM Linux On Mon, Jun 13, 2011 at 22:24, Stephen Boyd wrote: > On 06/10/2011 03:19 PM, Menon, Nishanth wrote: >> On Thu, May 12, 2011 at 01:42, Santosh Shilimkar >> wrote: >>> >>> It's a well known problem if the udelay() is based of global lpj. >>> You can read more here [1] >>> >>> Regards >>> Santosh >>> [1] http://eeek.borgchat.net/lists/arm-kernel/msg120702.html >> I am curious about this topic now. >> Searching Russel's patchworks for this: >> http://www.arm.linux.org.uk/developer/patches/search.php?summary=udelay >> I see nothing queued. What is the recommendation for udelay? > > The patches are sitting in Russell's patch tracker, waiting for him to > accept/reject them. > > http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=6874/1 > http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=6875/1 > http://www.arm.linux.org.uk/developer/patches/viewpatch.php?id=6873/1 thanks for the same and hope these do get through :) Regards, Nishanth Menon