RFC: Low-latency SDIO

Hi Pierre and anyone else who is interested,

Here is a cleaned up patch that implements the low-latency SDIO stuff
I mailed about a couple of weeks ago.  Basically the patches adds
asynchronous SDIO operations and makes it possible to register a
"hard" SDIO interrupt handler which will be called directly from
interrupt context (mmc_signal_sdio_irq).

So, tell me what you think. :-)

  /Christer

-- 
"Just how much can I get away with and still go to heaven?"

Christer Weinigel <christer@weinigel.se>  http://www.weinigel.se