From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754841AbaCKK5W (ORCPT ); Tue, 11 Mar 2014 06:57:22 -0400 Received: from mga02.intel.com ([134.134.136.20]:17111 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753901AbaCKK5T (ORCPT ); Tue, 11 Mar 2014 06:57:19 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.97,630,1389772800"; d="scan'208";a="497599329" Date: Tue, 11 Mar 2014 16:23:08 +0530 From: Vinod Koul To: George Cherian Cc: linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, dmaengine@vger.kernel.org, gregkh@linuxfoundation.org, balbi@ti.com, dan.j.williams@intel.com, msmucr@gmail.com Subject: Re: [PATCH 0/2] Fix CPPI Warnings during tear down after ISOCH transfers Message-ID: <20140311105308.GT1976@intel.com> References: <1393478081-14226-1-git-send-email-george.cherian@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1393478081-14226-1-git-send-email-george.cherian@ti.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Feb 27, 2014 at 10:44:39AM +0530, George Cherian wrote: > Warinings are seen after ISOCH transfers, during channel tear down. > This is mainly beacause we handle ISOCH differently as compared to > other transfers. > > Patch 1: make sure we do channel tear down only if channel is busy. > If not the tear down will never succeed. > > Patch 2: ISOCH completions are done differently, so this might lead to > reprogram of dma channel on which already a teardown is done. Applied, Thanks -- ~Vinod