[PATCH v7 2/3] clk: introduce the common clock framework

Saravana Kannan skannan at codeaurora.org
Fri Mar 23 21:33:00 UTC 2012


On 03/20/2012 08:10 PM, Saravana Kannan wrote:
> On 03/20/2012 04:53 PM, Turquette, Mike wrote:
>> It does make me
>> wonder if it would be a good idea to pass in the parent rate for
>> .set_parent, which is analogous to .set_rate in many ways.
>
> I need to think a bit more about this.

I was thinking about this. I think the common clock fwk should let the 
set_parent ops "return" the rate of the clock in addition to passing the 
rate of the parent in.

Say this is a divider clock and some one changes the parent. The cached 
"rate" of the clock in the clock fwk is no longer correct. So, the clock 
fwk should also add a "*new_rate" param to set parent ops.

Thanks,
Saravana

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