[RFC PATCH 06/13] picoxcell: add support for system clks

[jamie@jamieiles.com (Jamie Iles)]

On Wed, Dec 08, 2010 at 04:18:07PM +0000, Russell King - ARM Linux wrote:
> On Tue, Nov 23, 2010 at 10:06:07AM +0000, Jamie Iles wrote:
> > The different picoXcell device variants have different numbers of clocks
> > and different capabilities (PC3X2 doesn't have any gateable or
> > controllable clocks). Add the infrastructure necessary for device
> > variants to provide their own clock implementation.
> 
> Fro the looks of this, you only allow one lookup per clk?  That's
> rather sub-optimal, and could cause you problems in the future when
> you may want to have aliases to cater for differences in the SoC
> clock layout.

Hmm, I hadn't thought of that. The number of clocks in our chips appears 
to be rapidly multiplying so that seems like a very good idea.

I guess for PC3X2 where we don't have any gateable or controllable 
clocks that means I can create one virtual clock then add a number of 
aliases where drivers require a struct clk.

Thanks,

Jamie