[PATCH 1/2] ARM: imx6q: add pll round_rate support

Richard Zhao richard.zhao at linaro.org
Thu Mar 15 11:15:23 EDT 2012


On Thu, Mar 15, 2012 at 04:00:48PM +0100, Sascha Hauer wrote:
> On Thu, Mar 15, 2012 at 10:46:04PM +0800, Richard Zhao wrote:
> > On Wed, Mar 14, 2012 at 09:52:28AM +0100, Sascha Hauer wrote:
> > > On Wed, Mar 14, 2012 at 04:22:58PM +0800, Richard Zhao wrote:
> > > > Signed-off-by: Richard Zhao <richard.zhao at linaro.org>
> > > > ---
> > > >  
> > > >  #define DEF_PLL(name)					\
> > > >  	static struct clk name = {			\
> > > > @@ -681,6 +741,7 @@ static int pll_set_rate(struct clk *clk, unsigned long rate)
> > > >  		.disable	= pll_disable,		\
> > > >  		.get_rate	= name##_get_rate,	\
> > > >  		.set_rate	= name##_set_rate,	\
> > > > +		.round_rate	= name##_round_rate,	\
> > > 
> > > I hope this ## stuff is gone soon with the generic clock framework. It
> > > is so ugly and inefficient.
> > I hope this doesn't prevent this two patches go in.
> 
> Given that we are short from getting a generic clock framework (and I
> think this time it's for real) and that you are not mention in any words
> what these patches fix I don't see a reason for merging them.
I think the cpu clock is a great challenge for generic clock framework.
When it set_rate, it includes reparent, and change parent's parent's rate.
I don't see any upstream code like that till now. and it's really what
we need.

And it also block cpufreq from upstreaming.


Thanks
Richard
> 
> Sascha
> 
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