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Date:	Sun, 18 Feb 2007 06:53:18 +0000
From:	Russell King <>
To:	Alex Dubov <>
Cc:	Pavel Machek <>, Pierre Ossman <>,
	Greg KH <>,
Subject: Re: [mmc] incorrect behavior on resume

On Sat, Feb 17, 2007 at 05:46:35PM -0800, Alex Dubov wrote:
> The problem here is that mmc_block's device is a child of real device
> (tifm_dev here), so it gets resumed right after it.

The host driver is supposed to call mmc_resume_host from it's resume
callback.  This should be called before the child's resume callback.

> However, it correct functioning depends on mmc_core, which must be
> manually resumed (mmc_resume_host). Therefore, I think this is
> purely mmc's problem.

I don't see that - as I say above, the correct sequence is:

 - host device resume
     - calls mmc_resume_host()
 - child's device resume (mmc_blk_resume)
     - mmc_queue_resume()

Russell King
 Linux kernel    2.6 ARM Linux   -
 maintainer of:
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