linux-kernel - Re: [PATCH v2 1/5] dmaengine: add ep93xx DMA support

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Date:	Wed, 16 Nov 2011 08:55:12 +0200
From:	Mika Westerberg <mika.westerberg@....fi>
To:	Rafal Prylowski <prylowski@...asoft.pl>
Cc:	linux-arm-kernel@...ts.infradead.org, rmallon@...il.com,
	vinod.koul@...el.com, broonie@...nsource.wolfsonmicro.com,
	linux-kernel@...r.kernel.org, grant.likely@...retlab.ca,
	hsweeten@...ionengravers.com, dan.j.williams@...el.com, lrg@...com
Subject: Re: [PATCH v2 1/5] dmaengine: add ep93xx DMA support

On Tue, Nov 15, 2011 at 04:02:05PM +0100, Rafal Prylowski wrote:
> 
> 1) Control register is incorrectly programmed for IDE (m2m_hw_setup),
> probably copy-paste bug ;)

Yes, this is certainly a copy-paste bug or something. Thanks for fixing :)

Can you send a separate patch for this? Make sure you Cc Vinod Koul as he is
the maintainer of slave dma subsystem.

> 2) Kernel oops when trying to stop running transfers by calling
> dmaengine_terminate_all(...) - caused by dereferencing empty list
> in ep93xx_dma_get_active

Can you post that OOPS log? I would like to understand this problem a bit
better before we do any fixes for the driver.
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