From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lauri Hintsala Subject: mxs-auart serial driver DMA support? Date: Thu, 12 Jan 2012 08:30:31 +0200 Message-ID: <4F0E7E07.1020306@bluegiga.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from bluegiga.fi ([194.100.31.45]:28438 "EHLO darkblue.bluegiga.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751184Ab2ALGkt (ORCPT ); Thu, 12 Jan 2012 01:40:49 -0500 Sender: linux-serial-owner@vger.kernel.org List-Id: linux-serial@vger.kernel.org To: Sascha Hauer Cc: linux-serial@vger.kernel.org, linux-arm-kernel-request@lists.infradead.org Hi, Any plans to add DMA support for mxs-auart serial driver? I noticed it is impossible to archive full 3.25 Mbs speed with current one. There is DMA supported driver on freescale's git tree: http://opensource.freescale.com/git?p=imx/linux-2.6-imx.git;a=blob;f=drivers/serial/mxs-auart.c;hb=imx_2.6.35_11.09.01 As I understood porting DMA support from freescale's driver is not trivial because MXS DMA implementation has been changed to mainline version. Regards, Lauri Hintsala