https://bugs.freedesktop.org/show_bug.cgi?id=46713
--- Comment #24 from Alex Deucher agd5f@yahoo.com 2012-04-04 08:50:44 PDT --- Please see: http://lists.freedesktop.org/archives/dri-devel/2012-March/020717.html http://lists.freedesktop.org/archives/dri-devel/2012-March/020855.html http://lists.freedesktop.org/archives/dri-devel/2012-March/020857.html http://people.freedesktop.org/~agd5f/0001-WIP-port-of-hdmi-dp-audio-code-to-...
As per the comments in the last patch:
+ /* Express [24MHz / target pixel clock] as an exact rational + * number (coefficient of two integer numbers. DCCG_AUDIO_DTOx_PHASE + * is the numerator, DCCG_AUDIO_DTOx_MODULE is the denominator + */