[PATCH RFC] clk: add support for automatic parent handling

[Colin Cross]

On Fri, Apr 22, 2011 at 2:51 AM, Thomas Gleixner <tglx at linutronix.de> wrote:
> Another thing I'm pondering is to provide the ability to maintain
> separate clk trees. So you can have individual domains which have
> their per clk tree locking. Would that make sense ?

Clock trees are likely to be linked somewhere - an external clock chip
that drives the main clock input on the SoC, or an SoC clock output
that drives a chip with an internal clock tree.  Domains would have to
be dynamically managed to ensure two clocks from different clock chips
that become linked are moved under the same clock lock.  Probably
easier to keep a global lock.