[Intel-gfx] [PATCH RESEND 9/9] drm/i915: set proper N/M in modeset

Jani Nikula jani.nikula at intel.com
Thu Oct 20 11:34:34 UTC 2016


On Thu, 20 Oct 2016, "Yang, Libin" <libin.yang at intel.com> wrote:
>> >> Any particular reason these M/N values are half of what they're in
>> >> table
>> >> 2-104 of DP 1.4 spec? (Admittedly the table is an informative
>> >> example.)
>> >
>> > For HDMI, we found only set N is enough. HW then can handle the
>> remaining.
>> 
>> I meant, the M and N values in this part of the dp_aud_n_m table are 1/2 of
>> what they are in the DP spec table. Why?
>
> Which table are you meaning? I calculate the values myself. I didn't find the
> full table in DP spec. I only find the table for 270MHz and 162MHz in 
> Table 2-50: Examples of Maud and Naud Values

Table 2-104 in DP 1.4. Maybe you're looking at an older version of the
spec.

BR,
Jani.


-- 
Jani Nikula, Intel Open Source Technology Center


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