[PATCH 3.18 stable] ARM: mvebu: do not register custom DMA operations when coherency is disabled

[Baruch Siach]

Hi Thomas,

On Thu, Mar 12, 2015 at 11:49:10AM +0100, Thomas Petazzoni wrote:
> This patch is a partial backport of commit ef01c6c36bb8 ("ARM: mvebu:
> remove Armada 375 Z1 workaround for I/O coherency"). This commit was
> merged in v3.19, so kernel versions later than v3.19 are not affected
> by the problem that this commit fixes.
> 
> It does make a lot of sense to backport this commit entirely, since it

"It does not" maybe?

> is mainly removing some no longer useful code. However, this commit is
> also making sure that the bus_register_notifier that register the
> custom DMA operations that should be used for HW I/O coherency does
> not get registered when said HW I/O coherency is not enabled.

baruch

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