[PATCH 1/3] mmc: add support for power-on sequencing through DT

[Mark Brown]

On Tue, Jan 21, 2014 at 10:14:49AM -0800, Olof Johansson wrote:
> On Tue, Jan 21, 2014 at 12:55 AM, Ulf Hansson <ulf.hansson at linaro.org> wrote:

> > That could make sense, but still I wonder how those shall be handled
> > in a fine grained power management setup. In other words, when shall
> > those be gated/ungated? Is the mmc core able to take the correct
> > decision about these?

> The reference clock is in most cases I've seen 32kHz, and not
> something that's under fine-grained power management. So it's not used
> to regulate interface speed, etc.

I have seen devices connected using SDIO which did use fine grained
power management here with faster clocks.  They're definitely not the
common case but they're there.  :/
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