vddc phase shedding in smc tables

[Alex Deucher]

On Wed, Oct 30, 2013 at 6:41 PM, Sylvain BERTRAND <sylware at legeek.net> wrote:
>>> BTW, which generations/families/types(mobile...) do support phase shedding?
>>
>> Southern Islands and Sea Islands dGPU parts as far as I know.
>
> Erf, for tahiti discret gpu, the atombios rom does not have a
> VOLTAGE_OBJ_PHASE_LUT for VOLTAGE_TYPE_VDDC.
>
> I probably miss something in dpm code.

It depends on the individual card configuration.  Different cards have
different features enabled.  It's up to the OEM AFAIK.

Alex

>
> regards,
>
> --
> Sylvain BERTRAND