linux-kernel - [PATCH 0/2] dmaengine: Support for IMG MDC

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Message-Id: <1415912288-26926-1-git-send-email-abrestic@chromium.org>
Date:	Thu, 13 Nov 2014 12:58:06 -0800
From:	Andrew Bresticker <abrestic@...omium.org>
To:	Vinod Koul <vinod.koul@...el.com>,
	Dan Williams <dan.j.williams@...el.com>
Cc:	Andrew Bresticker <abrestic@...omium.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Grant Likely <grant.likely@...aro.org>,
	James Hartley <james.hartley@...tec.com>,
	James Hogan <james.hogan@...tec.com>,
	Ezequiel Garcia <ezequiel.garcia@...tec.com>,
	Damien Horsley <Damien.Horsley@...tec.com>,
	dmaengine@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 0/2] dmaengine: Support for IMG MDC

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

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