[PATCH] powerpc/esdhc: enable the card insert/remove interrupt

[Huang Changming-R66093]

> Hello Huang,
> 
> On Fri, Oct 26, 2012 at 02:42:36AM +0000, Huang Changming-R66093 wrote:
> > For the current polling mode, driver will send CMD13 to poll the card
> status periodically , which will cause too many interrupts.
> > Once I sent patches to detect the card when using polling mode last
> year: read the state register, instead of send CMD13. But, these patches
> were not accepted. Now I attach them for you.
> 
> Was there any specific reason why the patches didn't get accepted?
> 
> I very briefly looked at them, and they seem to be OK (there are a few
> cosmetic details I'd comment on, tho -- but please send them in a normal
> way (i.e. not as attachments).
> 

Thanks, Anton.
I don't know why.
I will resend these patches based on latest kernel.