Re: [PATCH 2/3] S3C64XX: Add initial support for ARMCLK

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Fri, Feb 27, 2009 at 08:02:32PM +0000, Russell King - ARM Linux wrote:
> On Thu, Feb 26, 2009 at 07:59:45PM +0000, Mark Brown wrote:

> > +	rate = clk_round_rate(clk, rate);

> Hmm.  Does both clk_set_rate() (which will then call this method) and
> clk_round_rate() both take the same spinlock?

Indeed they do.

> Since clk_round_rate() is supposed to tell you what rate you end up
> with if you were to ask for clk_set_rate() to set it for you, maybe
> the actual clk_set_rate() implementation should be pre-rounding the
> rate using the round_rate() method before calling these set_rate()
> methods, so they don't have to?

> That would ensure that round_rate() does return the right thing (if
> it doesn't you won't get the right rate from set_rate).

That'd be useful, yes.  

In this specific case the problem may well go away - this clock is
almost the only user of APLL so it may make sense to collapse it into
APLL once I've fully understood what the requirements are there.
--
To unsubscribe from this list: send the line "unsubscribe cpufreq" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Kernel Devel]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Forum]     [Linux SCSI]

  Powered by Linux