From mboxrd@z Thu Jan 1 00:00:00 1970 From: Romit Dasgupta Subject: Re: [PATCH] OMAP3: PM: Dynamic calculation of SDRC clock stabilization delay Date: Fri, 11 Dec 2009 18:01:31 +0530 Message-ID: <4B223BA3.4000402@ti.com> References: <5A47E75E594F054BAF48C5E4FC4B92AB030ADD4B50@dbde02.ent.ti.com> <7A436F7769CA33409C6B44B358BFFF0C012B9F49BC@dlee02.ent.ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from comal.ext.ti.com ([198.47.26.152]:59738 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750789AbZLKMba (ORCPT ); Fri, 11 Dec 2009 07:31:30 -0500 Received: from dbdp31.itg.ti.com ([172.24.170.98]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id nBBCVYdc022995 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Fri, 11 Dec 2009 06:31:37 -0600 In-Reply-To: <7A436F7769CA33409C6B44B358BFFF0C012B9F49BC@dlee02.ent.ti.com> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "Menon, Nishanth" Cc: "Reddy, Teerth" , "linux-omap@vger.kernel.org" > > Also Richard indicated that there might be a few tricky things with perf > Counters with specific devices - like EMU/HS/GP devices. It might need EMU > Domain for the values to pass through and there might be a yet-not-measured increase In power which could impact usage numbers and may need additional > Code to switch off the domain correctly while hitting OFF/RET.. > Yes someone with EMU/HS could run and let us know. OTOH there won't be any increase in power as it is done only once during boot time after which the perfcounters are stopped. By the way can you run this in 3630 and help us find what is the SRAM access delay? I am sure it should be lesser since it has a process improvement over 34xx.