Re: [PATCH] clk: Remove global clk traversal on fetch parent index

[Stephen Boyd]

Quoting Derek Basehore (2018-12-20 16:31:00)
> It's not required to traverse the entire clk tree when the parents
> array contains a NULL value. You already have the parent clk_core
> pointer, so you can just compare the parent->name and parent_names[i]
> pointers.
> 
> In cases where clk names are never registered, this can be
> a substantial power improvement since a mux having an unregistered
> parent name will traverse the clk tree on every set_rate. This can
> happen hundreds of times a second on CPU clks.
> 
> Change-Id: I85499d2e576249568ff508e424ca8d5009e6e2b1
> Signed-off-by: Derek Basehore <dbasehore@xxxxxxxxxxxx>
> ---

Applied to clk-fixes + some commit text and comment updates.