From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Shevchenko Subject: Re: [PATCH] Add Xilinx AXI Video DMA Engine driver Date: Fri, 17 Jan 2014 17:32:17 +0200 Message-ID: <1389972737.7619.14.camel@smile> References: <1389894803-4147-1-git-send-email-sthokal@xilinx.com> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1389894803-4147-1-git-send-email-sthokal-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Srikanth Thokala Cc: dan.j.williams-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org, michal.simek-gjFFaj9aHVfQT0dZR+AlfA@public.gmane.org, grant.likely-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org On Thu, 2014-01-16 at 23:23 +0530, Srikanth Thokala wrote: > Hi, > > This is the driver for Xilinx AXI Video Direct Memory Access Engine. > It is a soft IP core, which provides high-bandwidth direct memory > access between memory and AXI4-Stream video type target peripherals > including peripherals which support AXI4-Stream Video Protocol. The > core provides efficient two dimensional DMA operations with independent > asynchronous read and write channel operation. > > For more information on the IP, please refer to > http://www.xilinx.com/support/documentation/ip_documentation/axi_vdma/v6_1/pg020_axi_vdma.pdf > > This patch also provides a test client, which assumes read and write channels > of the core are configured in a back-to-back connection. It transfers > data on the write channel, read and verify the data on the read channel. > > drivers/dma/xilinx/xilinx_vdma_test.c | 629 ++++++++ What about to modify dmatest.c accordingly to your needs? I see no much sense to have another copy of that in the tree. -- Andy Shevchenko Intel Finland Oy -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html