[PATCH v2 2/6] OMAP4: Clock: round_rate and recalc functions for DPLL_ABE

[Turquette, Mike]

On Tue, Sep 27, 2011 at 11:59 PM, Paul Walmsley <paul at pwsan.com> wrote:
> Hi Jon and Mike,
>
> On Fri, 16 Sep 2011, Jon Hunter wrote:
>
>> From: Mike Turquette <mturquette at ti.com>
>>
>> OMAP4 DPLL_ABE can enable a 4X multipler on top of the normal MN multipler
>> and divider. This is achieved by setting CM_CLKMODE_DPLL_ABE.DPLL_REGM4XEN
>> bit in CKGEN module of CM1. From the OMAP4 TRM:
>>
>> Fdpll = Fref x 2 x (4 x M/(N+1)) in case REGM4XEN bit field is set (only
>> applicable to DPLL_ABE).
>>
>> Add new round_rate() and recalc() functions for OMAP4, that check the
>> setting of REGM4XEN bit and handle this appropriately. The new functions
>> are a simple wrapper on top of the existing omap2_dpll_round_rate() and
>> omap2_dpll_get_rate() functions to handle the REGM4XEN bit.
>>
>> The REGM4XEN bit is only implemented for the ABE DPLL on OMAP4 and so
>> only dpll_abe_ck uses omap4_dpll_regm4xen_round_rate() and
>> omap4_dpll_regm4xen_recalc() functions.
>>
>> Signed-off-by: Mike Turquette <mturquette at ti.com>
>> Tested-by: Jon Hunter <jon-hunter at ti.com>
>
> Some changes have been made to this patch here, to fix a few minor bugs in
> error paths and to add documentation and Jon's Signed-off-by: (since he's
> in the submittal chain).
>
> Care to review and send any comments?  Otherwise, I plan to queue this
> revised version for 3.2.

Your changes to the patch look good.

Regards,
Mike