Dove clock support

[Sebastian Hesselbarh]

On 06/18/2012 11:54 AM, Marc Kleine-Budde wrote:
>> Also ge-phy has to be connected with ge-clk, too. But for dove this is
>> a clk gate while kirkwood can shut it down somewhere else. I guess it
>> can be handled like sata/pcie on kirkwood.
>
> The PHY is a clock gate so I'm handling it via:
>> ge = dove_register_gate("ge0", CLOCK_GATING_GBE_BIT | CLOCK_GATING_GIGA_PHY_BIT);
> So no gate_fn needed.

There is no fn needed for dove, but kirkwood will need one IIRC.
Moreover, you could hook-up PHY-gate as a parent of corresponding
clk-gate and they will be enabled/disabled simultaneously.

But I'd prefer the driver to take care of clks _and_ PHYs.

One more: I suggest to clean the clk names of orion platforms,
they are a mess ;) And IMHO clks should always have both strings
set, e.g. kirkwood-i2s has an extclk input besides it on-chip clk.

Sebastian