Re: PM branch updates: 3430sdp and omap3evm results

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Hi Kevin,


On 2/4/09, Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx> wrote:
> Ramesh Gupta Guntha <grgupta77@xxxxxxxxx> writes:
>
> > Kevin,
> >
> >
> > On 2/4/09, Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx> wrote:
> >> Ramesh Gupta Guntha <grgupta77@xxxxxxxxx> writes:
> >>
> >> > Hi,
> >> >
> >> >  I am able to resolve all other issues with this pm branch except one issue,
> >> >
> >> > I am not able to enable the iva2 clock once system is suspended and
> >> > resumed, I am getting below messages.
> >> >>
> >> >> <3>clock: dpll2_ck failed transition to 'locked'
> >> >> clock: dpll2_ck failed transition to 'locked'
> >> >> <3>clock: dpll2_ck failed transition to 'locked'
> >> >> clock: dpll2_ck failed transition to 'locked'
> >> >
> >> > Once after booting ( without adding bridgedriver/ installing bridgedriver)
> >> > CM_CLKEN_PLL_IVA2 value shows as 0x37 indicates IVA2 DPLL in locked mode.
> >> >
> >> > once after system suspend the value is not restored I am seeing that as
> >> >  0x11 indicates IVA2 DPLL is low power stop mode.
> >> >
> >> > Can any one please provide your inputs on the above error? I tried
> >> > reconfiguring the CM_CLKEN_PLL_IVA2 to lock mode but still I am seeing
> >> > the same messages as above while enabling iva2 clock.
> >>
> >> Are you suspending into retention or off-mode?
> >
> > I am suspending into Off mode.
> >
>
> Do you see this problem when only going into retention?
>
> If not, sounds like we're missing some registers being saved/restored
> across off-mode.

I am seeing this issue only with OFF mode , retention works fine for me,
yeah, looks like some registers are not restored properly across off mode.
please let me know your inputs on this.

-- 
Thanks
Ramesh Gupta G
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