[PATCH 03/17] mmc: mmci: Mask IRQs for all variants during runtime suspend

Russell King - ARM Linux linux at arm.linux.org.uk
Tue Feb 18 11:46:14 EST 2014

On Tue, Feb 18, 2014 at 05:36:52PM +0100, Ulf Hansson wrote:
> If we add SDIO irq support to mmci in future; parts of that
> implementation includes a re-route of DAT1 to a GPIO irq when entering
> runtime suspend state. The mmci HW will in runtime suspend state, not
> be responsible for handling irqs, which is the same as of today.

Note that the "irq thread" in sdio_irq is scheduled for destruction -
it's buggy when the system is under high load and a driver claims a
SDIO irq.  Sched people hate it too...

FTTC broadband for 0.8mile line: 5.8Mbps down 500kbps up.  Estimation
in database were 13.1 to 19Mbit for a good line, about 7.5+ for a bad.
Estimate before purchase was "up to 13.2Mbit".

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