Hi Jani, > -----Original Message----- > From: Jani Nikula [mailto:jani.nikula@xxxxxxxxxxxxxxx] > Sent: Tuesday, August 2, 2016 6:53 PM > To: libin.yang@xxxxxxxxxxxxxxx; intel-gfx@xxxxxxxxxxxxxxxxxxxxx; > ville.syrjala@xxxxxxxxxxxxxxx; Vetter, Daniel <daniel.vetter@xxxxxxxxx>; > tiwai@xxxxxxx > Cc: Yang, Libin <libin.yang@xxxxxxxxx>; Libin Yang > <libin.yang@xxxxxxxxxxxxxxx> > Subject: Re: [PATCH] drm/i915: set proper N/M in modeset > > On Tue, 02 Aug 2016, libin.yang@xxxxxxxxxxxxxxx wrote: > > From: Libin Yang <libin.yang@xxxxxxxxxxxxxxx> > > > > When modeset occurs and the LS_CLK is set to some special values in DP > > mode, the N/M need to be set manually if audio is playing. > > > > The relationship of Maud and Naud is expressed in the following > > equation: > > Maud/Naud = 512 * fs / f_LS_Clk > > > > Please refer VESA DisplayPort Standard spec for details. > > > > Also, the patch applies > > commit 7e8275c2f2bb ("drm/i915: set proper N/CTS in modeset") to APL > > platform. > > Whenever a commit message says "also", it makes me think the patch should > probably be split to several patches. And that is certainly true here. I will split the patch in next version. Regards, Libin > > > -- > Jani Nikula, Intel Open Source Technology Center _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx
