From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751221AbaCQTGt (ORCPT ); Mon, 17 Mar 2014 15:06:49 -0400 Received: from mail-ob0-f178.google.com ([209.85.214.178]:34552 "EHLO mail-ob0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751158AbaCQTGr (ORCPT ); Mon, 17 Mar 2014 15:06:47 -0400 From: Srikanth Thokala To: dan.j.williams@intel.com, vinod.koul@intel.com, michal.simek@xilinx.com, grant.likely@linaro.org, robh+dt@kernel.org Cc: levex@linux.com, lars@metafoo.de, andriy.shevchenko@linux.intel.com, jaswinder.singh@linaro.org, dmaengine@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Srikanth Thokala Subject: [PATCH v6 0/2] Add Xilinx AXI Video DMA Engine driver Date: Tue, 18 Mar 2014 00:36:30 +0530 Message-Id: <1395083192-3224-1-git-send-email-sthokal@xilinx.com> X-Mailer: git-send-email 1.7.9.5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Use cases: ++++++++++ 1. Xilinx Video Targeted Reference design http://www.wiki.xilinx.com/Zynq+Base+TRD+14.5 2. Common Display Framework http://events.linuxfoundation.org/sites/events/files/slides/20131024-elce.pdf Regards, Srikanth Changes in v6: - Fixed minor comments suggested by Andy, Thanks. Changes in v5: - Modified to accept only 1 frame per interleaved_dma() call, as suggested by Jaswinder, Thanks. Changes in v4: - Rebased on v3.14.0-rc5 - Reverted the changes that were done for the earlier patch series, 1/3 - 'Support multiple interleaved frames with non-contiguous memory' as suggested by Jaswinder, Thanks. Changes in v3: - Created a separate patch for the DT binding documentation as suggested by Vinod, Thanks. - Added support for interleaved frames with non-contiguous memory as suggested by Lars, Thanks. - Rebased on v3.14.0-rc2 Srikanth Thokala (2): dma: Add Xilinx Video DMA DT Binding Documentation dma: Add Xilinx AXI Video Direct Memory Access Engine driver support .../devicetree/bindings/dma/xilinx/xilinx_vdma.txt | 75 ++ drivers/dma/Kconfig | 14 + drivers/dma/Makefile | 1 + drivers/dma/xilinx/Makefile | 1 + drivers/dma/xilinx/xilinx_vdma.c | 1382 ++++++++++++++++++++ include/linux/amba/xilinx_dma.h | 47 + 6 files changed, 1520 insertions(+), 0 deletions(-) create mode 100644 Documentation/devicetree/bindings/dma/xilinx/xilinx_vdma.txt create mode 100644 drivers/dma/xilinx/Makefile create mode 100644 drivers/dma/xilinx/xilinx_vdma.c create mode 100644 include/linux/amba/xilinx_dma.h -- 1.7.4