[PATCH 0/7] extract a simple dmaengine library from shdma.c

From: Guennadi Liakhovetski
Date: Wed Jan 18 2012 - 05:22:24 EST


This patch series has been triggered by a recent series by Shimoda-san
http://www.spinics.net/lists/linux-sh/index.html#09895
In a follow up to that thread it has been decided to extract a common
library from the current shdma driver to be re-used by other dmaengine
drivers. Primarily this library provides a flexible transfer descriptor
management for hardware, that does not dupport scatter-gather lists
natively. In such cases this library can be used to split transfer
requests into smaller chunks, up to the size, supported by the specific
hardware, enter them onto a linked list, thack their completion and call
user callbacks. This is a first shot, aimed to be used by the SUDMAC
driver. Once it is confirmed, that this version can be conveniently used
with it, I'll do some cosmetic clean up, notably, add / improve
documentation:-)

Thanks
Guennadi
---
Guennadi Liakhovetski, Ph.D.
Freelance Open-Source Software Developer
http://www.open-technology.de/

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