[PATCH v3 3/6] OMAP3+: use DPLL's round_rate when setting rate

[Turquette, Mike]

On Wed, Sep 28, 2011 at 12:02 AM, Paul Walmsley <paul at pwsan.com> wrote:
> Hi,
>
> On Fri, 16 Sep 2011, Jon Hunter wrote:
>
>> From: Mike Turquette <mturquette at ti.com>
>>
>> omap3_noncore_dpll_set_rate uses omap2_dpll_round_rate explicitly.  Instead
>> use the struct clk pointer's round_rate function to allow for DPLL's with
>> special needs.
>>
>> Also the rounded rate can differ from target rate, so to better reflect
>> reality set clk->rate equal to the rounded rate when setting DPLL frequency.
>> This avoids issues where the DPLL frequency is slightly different than what
>> debugfs clock tree reports using the old target rate.
>>
>> An example of both of these needs is DPLL_ABE on OMAP4 which can have a 4x
>> multiplier on top of the usual MN dividers depending on register settings.
>> This requires a special round_rate function that might yield a rate
>> different from the initial target.
>>
>> Signed-off-by: Mike Turquette <mturquette at ti.com>
>> Signed-off-by: Jon Hunter <jon-hunter at ti.com>
>
> The two separate changes in this patch have been separated out into two
> patches - both included below.  Please let me know if you have any
> comments; otherwise, I'll queue for 3.2.

The split patches look good to me.  I have another patch which does a
similar thing (converts omap2_get_dpll_rate use to clk->recalc) which
fixes yet more bugs that plague DPLL_ABE.  Will send across shortly;
hopefully can make it into 3.2?

Regards,
Mike