From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752453AbcAIEiO (ORCPT ); Fri, 8 Jan 2016 23:38:14 -0500 Received: from mail-oi0-f54.google.com ([209.85.218.54]:34476 "EHLO mail-oi0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752066AbcAIEiL (ORCPT ); Fri, 8 Jan 2016 23:38:11 -0500 Date: Fri, 8 Jan 2016 22:38:09 -0600 From: Andy Gross To: Sricharan R Cc: iivanov@mm-sol.com, devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org, galak@codeaurora.org, linux-kernel@vger.kernel.org, linux-i2c@vger.kernel.org, agross@codeaurora.org, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [V5,4/6] i2c: qup: Add bam dma capabilities Message-ID: <20160109043809.GC4616@hector.attlocal.net> References: <1447760727-4897-5-git-send-email-sricharan@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1447760727-4897-5-git-send-email-sricharan@codeaurora.org> User-Agent: Mutt/1.5.23.1 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Nov 17, 2015 at 05:15:25PM +0530, Sricharan R wrote: > QUP cores can be attached to a BAM module, which acts as a dma engine for the > QUP core. When DMA with BAM is enabled, the BAM consumer pipe transmitted data > is written to the output FIFO and the BAM producer pipe received data is read > from the input FIFO. > > With BAM capabilities, qup-i2c core can transfer more than 256 bytes, without a > 'stop' which is not possible otherwise. > > Signed-off-by: Sricharan R > --- Reviewed-by: Andy Gross