From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bryan Huntsman Date: Fri, 21 Jan 2011 23:28:21 +0000 Subject: Re: Locking in the clk API Message-Id: <4D3A1695.7020707@codeaurora.org> List-Id: References: <201101111016.42819.jeremy.kerr@canonical.com> <20110111031552.GJ3760@linux-sh.org> <4D3862DB.5000708@fluff.org> <20110120185617.GI6335@n2100.arm.linux.org.uk> <4D3907BD.4040900@codeaurora.org> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org On 01/21/2011 01:53 PM, Nicolas Pitre wrote: ... > And... is there really some advantage to turn the clock off in between > frames when you're otherwise busy generating them anyway? For aggressive power management where supported by HW, yes. - Bryan -- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum. From mboxrd@z Thu Jan 1 00:00:00 1970 From: bryanh@codeaurora.org (Bryan Huntsman) Date: Fri, 21 Jan 2011 15:28:21 -0800 Subject: Locking in the clk API In-Reply-To: References: <201101111016.42819.jeremy.kerr@canonical.com> <20110111031552.GJ3760@linux-sh.org> <4D3862DB.5000708@fluff.org> <20110120185617.GI6335@n2100.arm.linux.org.uk> <4D3907BD.4040900@codeaurora.org> Message-ID: <4D3A1695.7020707@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 01/21/2011 01:53 PM, Nicolas Pitre wrote: ... > And... is there really some advantage to turn the clock off in between > frames when you're otherwise busy generating them anyway? For aggressive power management where supported by HW, yes. - Bryan -- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754663Ab1AUX2X (ORCPT ); Fri, 21 Jan 2011 18:28:23 -0500 Received: from wolverine01.qualcomm.com ([199.106.114.254]:9985 "EHLO wolverine01.qualcomm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753361Ab1AUX2W (ORCPT ); Fri, 21 Jan 2011 18:28:22 -0500 X-IronPort-AV: E=McAfee;i="5400,1158,6233"; a="71447258" Message-ID: <4D3A1695.7020707@codeaurora.org> Date: Fri, 21 Jan 2011 15:28:21 -0800 From: Bryan Huntsman User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101208 Thunderbird/3.1.7 MIME-Version: 1.0 To: Nicolas Pitre CC: Dima Zavin , Lorenzo Pieralisi , Russell King - ARM Linux , linux-sh@vger.kernel.org, Ben Herrenschmidt , Sascha Hauer , Paul Mundt , linux-kernel@vger.kernel.org, Saravana Kannan , Ben Dooks , Uwe Kleine-K??nig , Vincent Guittot , Jeremy Kerr , linux-arm-kernel@lists.infradead.org Subject: Re: Locking in the clk API References: <201101111016.42819.jeremy.kerr@canonical.com> <20110111031552.GJ3760@linux-sh.org> <4D3862DB.5000708@fluff.org> <20110120185617.GI6335@n2100.arm.linux.org.uk> <4D3907BD.4040900@codeaurora.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/21/2011 01:53 PM, Nicolas Pitre wrote: ... > And... is there really some advantage to turn the clock off in between > frames when you're otherwise busy generating them anyway? For aggressive power management where supported by HW, yes. - Bryan -- Sent by an employee of the Qualcomm Innovation Center, Inc. The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.