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Date: Mon, 23 Apr 2012 12:13:27 +0100
From: Russell King - ARM Linux <linux@arm.linux.org.uk>
To: Boojin Kim <boojin.kim@samsung.com>
Subject: Re: [PATCH 5/9] dmaengine: provide a common function for
 completing a dma descriptor
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On Mon, Apr 23, 2012 at 08:06:36PM +0900, Boojin Kim wrote:
> I met the DMA probing fail problem on Linux 3.4.
> It's because the return value on regulator_get() is changed
> from ENODEV to EPROBE_DEFER in case not to supply a vcore regulator.
> So, I try to change the check value about the return value of regulator_get()
> in amba_get_enable_vcore()from ENODEV to EPROBE_DEFER.
> How about it ? Do you already fix it too?

A fix has already been committed and sent upstream - about a week ago.