linux-kernel - Re: [PATCH v8 0/2] Add support for the Allwinner A31 DMA Controller

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Message-ID: <4828893.NoTbcUXQEt@wuerfel>
Date:	Wed, 21 May 2014 17:23:41 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc:	Dan Williams <dan.j.williams@...el.com>,
	Vinod Koul <vinod.koul@...el.com>,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	dmaengine@...r.kernel.org, linux-sunxi@...glegroups.com,
	kevin.z.m.zh@...il.com, sunny@...winnertech.com,
	shuge@...winnertech.com, zhuzhenhua@...winnertech.com,
	andriy.shevchenko@...el.com
Subject: Re: [PATCH v8 0/2] Add support for the Allwinner A31 DMA Controller

On Wednesday 21 May 2014 17:15:54 Maxime Ripard wrote:
> Changes from v7:
>   - select DMA_OF, since we're only relying on DT
> 

I missed the discussion about this issue, but it seems wrong to me.
DMA_OF is currently enabled if we have both DMAENGINE and OF turned on.

If OF is disabled but DMA_OF gets selected by DMA_SUN6I, what happens?

	Arnd
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