From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kevin Hilman Subject: Re: [PATCH v2 0/4] OMAP: DMA: mstandby mode and runtime pm support Date: Thu, 17 Mar 2011 14:29:18 -0700 Message-ID: <87lj0dwi4x.fsf@ti.com> References: <1299853215-8507-1-git-send-email-manjugk@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from na3sys009aog110.obsmtp.com ([74.125.149.203]:56663 "EHLO na3sys009aog110.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755572Ab1CQV3W (ORCPT ); Thu, 17 Mar 2011 17:29:22 -0400 Received: by mail-iy0-f182.google.com with SMTP id 12so5327902iyj.27 for ; Thu, 17 Mar 2011 14:29:21 -0700 (PDT) In-Reply-To: <1299853215-8507-1-git-send-email-manjugk@ti.com> (Manjunath Kondaiah G.'s message of "Fri, 11 Mar 2011 19:50:11 +0530") Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: "G, Manjunath Kondaiah" Cc: linux-omap@vger.kernel.org, linux-arm-kernel@lists.arm.linux.org.uk, paul@pwsan.com, tony@atomide.com "G, Manjunath Kondaiah" writes: > Patch series to support mstandby mode handling and enabling runtime PM > support for DMA driver. I still have the same problems as with the previous revision: This is still not runtime-suspending when I use my DMA test in linking mode. If I put a large enough period between transfers, it should autosuspend during transfers. It seems to do auto-suspend and resume once, but then it never suspends again. I tested with my dmatest module[1], and loaded with: # insmod ./dmatest.ko linking=1 forever=1 forever_period=1024 Not only does it not auto-suspend between transfers (which I expected), it also doesn't suspend after removing the module which stops all active channels. Kevin