[PATCH 2/2] ARM: imx6q: replace clk_register_clkdev with clock DT lookup

[Shawn Guo]

On Mon, Aug 20, 2012 at 12:22:56PM -0500, Matt Sealey wrote:
> It's not bloat just because it is by its very definition "a big list", is it?
> 
Grep for_each_node_by_*() and for_each_*_node() (include/linux/of.h)
in the tree to see how often these global device tree searching is
used, you may know how important not having so many nodes is.

> How do you explain duplicating the clock names in the array AND in the
> device node as NOT being bloated?
> 
> You're going to have to define these clocks as a tree with parents and
> leaf nodes anyway in the clock subsystem. Why not define these in the
> device tree in total and reference them by handle when you build the
> entire clock tree from the ground up? Or will it just be all the
> clocks defined in Linux, but the lookups (which is what I see here)
> moved into the DT? Why not form the lookups as part of the definition
> of the clock tree?
> 
This is something I had tried long time before, but it did not get
accepted because:

* It's unnecessary to encode the entire clock tree which is SoC
  specific in device tree.  Clock driver is a good place for that.

* Again, doing so will bloat device tree with hundreds of nodes.

-- 
Regards,
Shawn