Re: [mmc] incorrect behavior on resume

Russell King
2007-02-18T06:53:31Z

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 - http://www.arm.linux.org.uk/