Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752996Ab3JUIUW (ORCPT ); Mon, 21 Oct 2013 04:20:22 -0400 Received: from mga14.intel.com ([143.182.124.37]:26418 "EHLO mga14.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752975Ab3JUIUU (ORCPT ); Mon, 21 Oct 2013 04:20:20 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.93,535,1378882800"; d="scan'208";a="377578277" Date: Mon, 21 Oct 2013 12:56:45 +0530 From: Vinod Koul To: Joel Fernandes Cc: Matt Porter , Mark Brown , Russell King , Dan Williams , Jyri Sarha , Lars Peter-Clausen , Linux OMAP List , Linux ARM Kernel List , Linux DaVinci Kernel List , Linux Kernel Mailing List , alsa-devel@alsa-project.org Subject: Re: [PATCH 3/3] dma: edma: Increase maximum SG limit to 20 Message-ID: <20131021072645.GO14013@intel.com> References: <1379977515-3794-1-git-send-email-joelf@ti.com> <1379977515-3794-4-git-send-email-joelf@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1379977515-3794-4-git-send-email-joelf@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 Content-Length: 672 Lines: 17 On Mon, Sep 23, 2013 at 06:05:15PM -0500, Joel Fernandes wrote: > davinci-pcm uses 16 as the no.of periods. With this, in EDMA we have to > allocate atleast 17 slots: 1 slot for channel, and 16 slots the periods. > > Due to this, the MAX_NR_SG limitation causes problems, set it to 20 to make > cyclic DMA work when davinci-pcm is converted to use DMA Engine. Also add > a comment clarifying this. Applied, thanks -- ~Vinod -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/