[PATCH] mmc: mmci: Gate the clock in runtime suspend to save power

[Russell King - ARM Linux]

On Tue, Dec 11, 2012 at 03:17:54PM +0100, Ulf Hansson wrote:
> From: Ulf Hansson <ulf.hansson at linaro.org>
> 
> The amba bus is already performing same actions but for the apb_pclk.
> So here we just make sure the clock to card is gated as well to save
> more power. At runtime resume we will thus restore the clock again.

And how exactly do you ensure the requirement that a certain number of
clocks is supplied to the card after the last command before you cut
the clock?