From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Petazzoni Subject: Suspend to RAM broken on BeagleBoard ? Date: Fri, 10 Sep 2010 17:48:14 +0200 Message-ID: <20100910174814.6e5d439e@surf> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8bit Return-path: Received: from mail.free-electrons.com ([88.190.12.23]:58196 "EHLO mail.free-electrons.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754089Ab0IJPsW (ORCPT ); Fri, 10 Sep 2010 11:48:22 -0400 Received: from surf (humanoidz.org [82.247.183.72]) by mail.free-electrons.com (Postfix) with ESMTPA id 16FC8E0 for ; Fri, 10 Sep 2010 17:48:13 +0200 (CEST) Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "linux-omap@vger.kernel.org" Hello, I've tested the current linux-omap Git tree and Kevin's pm-core branch on a BeagleBoard using the omap3_defconfig, and when trying a suspend to RAM, I get a "Class driver suspend failed for cpu0" : # echo mem > /sys/power/state [ 93.395050] PM: Syncing filesystems ... done. [ 93.410827] Freezing user space processes ... (elapsed 0.01 seconds) done. [ 93.434570] Freezing remaining freezable tasks ... (elapsed 0.01 seconds) done. [ 93.458557] Suspending console(s) (use no_console_suspend to debug) [ 93.590728] PM: suspend of devices complete after 119.629 msecs [ 93.593902] PM: late suspend of devices complete after 3.112 msecs [ 93.594421] Class driver suspend failed for cpu0 [ 93.595153] PM: early resume of devices complete after 0.518 msecs [ 93.887603] PM: resume of devices complete after 292.052 msecs [ 93.922851] Restarting tasks ... done. Is this a known issue ? I also have a problem with USB support, both on linux-omap and Kevin's pm-core branch. My USB Ethernet adapter, supported by the asix driver, isn't detected anymore. With a pm git tree of a couple of weeks ago, it was working. This is again with just a plain omap3_defconfig. Thanks! Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com