From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932894AbdABLaI (ORCPT ); Mon, 2 Jan 2017 06:30:08 -0500 Received: from mga02.intel.com ([134.134.136.20]:15924 "EHLO mga02.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932236AbdABLaH (ORCPT ); Mon, 2 Jan 2017 06:30:07 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,432,1477983600"; d="scan'208";a="1106908286" Message-ID: <1483356603.9552.197.camel@linux.intel.com> Subject: Re: dmaengine: dw-dmac: Custom cyclic API (Why?) From: Andy Shevchenko To: Vinod Koul Cc: Jose Abreu , "dmaengine@vger.kernel.org" , "linux-kernel@vger.kernel.org" , vireshk@kernel.org Date: Mon, 02 Jan 2017 13:30:03 +0200 In-Reply-To: <20170102101802.GX3573@localhost> References: <99eeb12c-fd4f-7982-4832-61116fd641d3@synopsys.com> <1483346280.9552.181.camel@linux.intel.com> <20170102101802.GX3573@localhost> Organization: Intel Finland Oy Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.22.3-1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2017-01-02 at 15:48 +0530, Vinod Koul wrote: > On Mon, Jan 02, 2017 at 10:38:00AM +0200, Andy Shevchenko wrote: > > On Fri, 2016-12-30 at 12:05 +0000, Jose Abreu wrote: > > > ++dw-dmac Maintainers > > I used to have some semi-finished patch to switch to generic API, > > though > > at that point I had no means to test it. > > > > Since I eventually got iDMA 32-bit, which is used as LPE Audio DMA > > engine, support in my branch I might test it in the future, though I > > think someone else would be much faster than me. > > no we can't, since the DSP is involved and takes control, so unless we > do > lots of nasty hacks, it won't be testable. I don't see the ROI for > such an > effort. Thanks for clarification > btw, feel free to test and send patches if you have such a h/w Actually we have AVR32 connected to our lab. So, I can test it there, but I rather need a patch to use some dummy stub instead of codec (it has no codec connected). -- Andy Shevchenko Intel Finland Oy