[PATCH 1/2 V3] clk: sirf: add CSR atlas7 clk and reset support

Stephen Boyd sboyd at codeaurora.org
Wed Jun 10 14:33:45 PDT 2015

On 06/11, Barry Song wrote:
> 2015-05-22 5:33 GMT+08:00 Stephen Boyd <sboyd at codeaurora.org>:
> > On 05/16, Barry Song wrote:
> >> 2015-05-16 2:30 GMT+08:00 Stephen Boyd <sboyd at codeaurora.org>:
> >> > On 05/15, Barry Song wrote:
> >
> > It isn't really about making boot time faster, it's about using
> > the proper linux device model for clock providers. That way when
> > we want to support things like suspend/resume, deferred probe,
> > devm_*(), sysfs, etc. we can use the device model instead of
> > resorting to things like syscore_ops for suspend/resume or
> > forgoing features entirely.
> >
> my feeling is if the clock controller is an internal controller which
> serve all controllers in the SoC, "deferred probe" might be yes for
> almost all HW since all HW need clock. so it seems it makes "deferred
> probe" has no meaning. clock controller seems to be 1st HW which needs
> to be ready.

That sounds like a probe ordering problem, and I agree most
likely the clock driver will need to probe first in this case. It
doesn't do anything about other problems like suspend/resume or
other features that the device model provides solutions for
though. Maybe we don't use these features, but it doesn't mean we
should forgo the device model just because we don't need it.

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