From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934247AbaKMU6Q (ORCPT ); Thu, 13 Nov 2014 15:58:16 -0500 Received: from mail-qc0-f201.google.com ([209.85.216.201]:58086 "EHLO mail-qc0-f201.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933909AbaKMU6M (ORCPT ); Thu, 13 Nov 2014 15:58:12 -0500 From: Andrew Bresticker To: Vinod Koul , Dan Williams Cc: Andrew Bresticker , Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Grant Likely , James Hartley , James Hogan , Ezequiel Garcia , Damien Horsley , dmaengine@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 0/2] dmaengine: Support for IMG MDC Date: Thu, 13 Nov 2014 12:58:06 -0800 Message-Id: <1415912288-26926-1-git-send-email-abrestic@chromium.org> X-Mailer: git-send-email 2.1.0.rc2.206.gedb03e5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series adds support for the IMG Multi-threaded DMA Controller (MDC) which is found on IMG SoCs. Currently this driver only supports the variant found on the MIPS-based Pistachio SoC. The MDC supports slave and memory-to-memory transfers on up to 32 channels. Requests from channels are handled by MDC threads. Thread assignments are per-channel and are specified in the device-tree. Tested on a platform based on the Pistachio SoC with additional patches. Support for Pistachio will be submitted later. Based on Vinod's slave-dma/next. I can rebase on Maxime's device_control refactoring [1] if necessary. Andrew Bresticker (2): dmaengine: Add binding document for IMG MDC dmaengine: Add driver for IMG MDC [1] https://lkml.org/lkml/2014/10/28/1067 .../devicetree/bindings/dma/img-mdc-dma.txt | 57 ++ drivers/dma/Kconfig | 9 + drivers/dma/Makefile | 1 + drivers/dma/img-mdc-dma.c | 1016 ++++++++++++++++++++ 4 files changed, 1083 insertions(+) create mode 100644 Documentation/devicetree/bindings/dma/img-mdc-dma.txt create mode 100644 drivers/dma/img-mdc-dma.c -- 2.1.0.rc2.206.gedb03e5