From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rajendra Nayak" Subject: [PATCH 00/11] OMAP3 CPUidle patches Date: Tue, 1 Jul 2008 19:46:01 +0530 Message-ID: <003d01c8db84$fe61fde0$68bf18ac@ent.ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from bear.ext.ti.com ([192.94.94.41]:57367 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759518AbYGAOQ1 (ORCPT ); Tue, 1 Jul 2008 10:16:27 -0400 Received: from dbdp31.itg.ti.com ([172.24.170.98]) by bear.ext.ti.com (8.13.7/8.13.7) with ESMTP id m61EG3Ev015438 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO) for ; Tue, 1 Jul 2008 09:16:15 -0500 Received: from a0393137pc (localhost [127.0.0.1]) by dbdp31.itg.ti.com (8.13.8/8.13.8) with ESMTP id m61EG1q3011273 for ; Tue, 1 Jul 2008 19:46:02 +0530 (IST) References: In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: linux-omap@vger.kernel.org Hi, The following patches define and enable all of the below mentioned C states for OMAP3. These are tested with a minimal kernel config on OMAP3430sdp as most drivers today don't have context save/restore in place and some even lack aggresive clock handling. These apply on top of the workaround patch set submitted by Jouni. ([PATCH 0/6] 34XX: PM: Workarounds to get omap3 to retention 4th.) The following is neccessay even with a minimal config to achieve OFF. $ echo 1 > /sys/power/sleep_while_idle $ echo 1 > /sys/power/clocks_off_while_idle The following C states are defined C0 - System executing code C1 - MPU WFI + Core active C2 - MPU CSWR + Core active C3 - MPU OFF + Core active C4 - MPU CSWR + Core CSWR C5 - MPU OFF + Core CSWR C6 - MPU OFF + Core OFF regards, Rajendra