lkml.org 
[lkml]   [2012]   [Mar]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v5 3/4] clk: introduce the common clock framework
On Fri, Mar 09, 2012 at 10:25:00AM -0800, Turquette, Mike wrote:
...
> However if you have the ability to use the clk_foo_register functions
> please do use them in place of static initialization. The static init
> stuff is only for folks backed into a corner and forced to use it...
> for now. I'm looking at ways to allow for kmalloc'ing in early boot,
> as well as reducing the number of clocks that my platform registers
> during early boot drastically.
>
While I agree using registration functions rather than static
initialization will help make "struct clk" an opaque cookie, I also
see some benefit with using static initialization over registration
functions. That is we will be able to initialize parents statically
rather than calling expensive __clk_lookup() to find them when using
registration functions.

I'm not sure if this will be a concern with the platforms that have
hundreds of clocks. Keep it in mind, when we say one clock, there
are generally 3 clks behind it, clk_gate, clk_divider and clk_mux.

--
Regards,
Shawn


\
 
 \ /
  Last update: 2012-03-19 08:03    [W:0.094 / U:71.620 seconds]
©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site