From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Boyd Subject: Re: Duration of mdelay and udelay depends on MPU frequency in SMP Date: Mon, 13 Jun 2011 20:24:27 -0700 Message-ID: <4DF6D46B.90806@codeaurora.org> References: <4DCB8158.8060507@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from wolverine01.qualcomm.com ([199.106.114.254]:18836 "EHLO wolverine01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751225Ab1FNDY1 (ORCPT ); Mon, 13 Jun 2011 23:24:27 -0400 In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "Menon, Nishanth" Cc: Santosh Shilimkar , Saquib , linux-omap , "linux-arm-kernel@lists.infradead.org" , Russell King - ARM Linux 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 -- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.