Re: [Intel-gfx] [PATCH] drm/i915/cnl: Fix wrpll math for higher freqs.

2017-11-16 Thread Ville Syrjälä
On Tue, Nov 14, 2017 at 03:42:23PM -0800, Rodrigo Vivi wrote: > Spec describe all values in MHz. We handle our > clocks in KHz. This includes the best_dco_centrality that was > forgot in the same unity as spec. Consequently we couldn't > get a good divider for high frequenies. Hence HDMI 2.0 wasn't

[Intel-gfx] [PATCH] drm/i915/cnl: Fix wrpll math for higher freqs.

2017-11-14 Thread Rodrigo Vivi
Spec describe all values in MHz. We handle our clocks in KHz. This includes the best_dco_centrality that was forgot in the same unity as spec. Consequently we couldn't get a good divider for high frequenies. Hence HDMI 2.0 wasn't working. Spec tells 99 for initial best_dco_centrality meaning t