Re: [Intel-gfx] [PATCH v3 1/3] drm/i915: set proper N/M in modeset

2016-08-05 Thread Yang, Libin
> -Original Message- > From: Ville Syrjälä [mailto:ville.syrj...@linux.intel.com] > Sent: Friday, August 5, 2016 6:54 PM > To: Yang, Libin > Cc: libin.y...@linux.intel.com; intel-gfx@lists.freedesktop.org; > jani.nik...@linux.intel.com; Vetter, Daniel ; > ti...@suse.de > Subject: Re: [PA

Re: [Intel-gfx] [PATCH v3 1/3] drm/i915: set proper N/M in modeset

2016-08-05 Thread Ville Syrjälä
On Fri, Aug 05, 2016 at 08:55:27AM +, Yang, Libin wrote: > > > -Original Message- > > From: Ville Syrjälä [mailto:ville.syrj...@linux.intel.com] > > Sent: Friday, August 5, 2016 4:45 PM > > To: Yang, Libin > > Cc: libin.y...@linux.intel.com; intel-gfx@lists.freedesktop.org; > > jani.n

Re: [Intel-gfx] [PATCH v3 1/3] drm/i915: set proper N/M in modeset

2016-08-05 Thread Yang, Libin
> -Original Message- > From: Ville Syrjälä [mailto:ville.syrj...@linux.intel.com] > Sent: Friday, August 5, 2016 4:45 PM > To: Yang, Libin > Cc: libin.y...@linux.intel.com; intel-gfx@lists.freedesktop.org; > jani.nik...@linux.intel.com; Vetter, Daniel ; > ti...@suse.de > Subject: Re: [PAT

Re: [Intel-gfx] [PATCH v3 1/3] drm/i915: set proper N/M in modeset

2016-08-05 Thread Ville Syrjälä
On Fri, Aug 05, 2016 at 07:24:14AM +, Yang, Libin wrote: > > > -Original Message- > > From: Ville Syrjälä [mailto:ville.syrj...@linux.intel.com] > > Sent: Friday, August 5, 2016 3:17 PM > > To: Yang, Libin > > Cc: libin.y...@linux.intel.com; intel-gfx@lists.freedesktop.org; > > jani.n

Re: [Intel-gfx] [PATCH v3 1/3] drm/i915: set proper N/M in modeset

2016-08-05 Thread Yang, Libin
> -Original Message- > From: Ville Syrjälä [mailto:ville.syrj...@linux.intel.com] > Sent: Friday, August 5, 2016 3:17 PM > To: Yang, Libin > Cc: libin.y...@linux.intel.com; intel-gfx@lists.freedesktop.org; > jani.nik...@linux.intel.com; Vetter, Daniel ; > ti...@suse.de > Subject: Re: [PAT

Re: [Intel-gfx] [PATCH v3 1/3] drm/i915: set proper N/M in modeset

2016-08-05 Thread Ville Syrjälä
On Fri, Aug 05, 2016 at 06:40:45AM +, Yang, Libin wrote: > > > > -Original Message- > > From: Ville Syrjälä [mailto:ville.syrj...@linux.intel.com] > > Sent: Friday, August 5, 2016 2:36 PM > > To: Yang, Libin > > Cc: libin.y...@linux.intel.com; intel-gfx@lists.freedesktop.org; > > jan

Re: [Intel-gfx] [PATCH v3 1/3] drm/i915: set proper N/M in modeset

2016-08-04 Thread Yang, Libin
> -Original Message- > From: Ville Syrjälä [mailto:ville.syrj...@linux.intel.com] > Sent: Friday, August 5, 2016 2:36 PM > To: Yang, Libin > Cc: libin.y...@linux.intel.com; intel-gfx@lists.freedesktop.org; > jani.nik...@linux.intel.com; Vetter, Daniel ; > ti...@suse.de > Subject: Re: [PA

Re: [Intel-gfx] [PATCH v3 1/3] drm/i915: set proper N/M in modeset

2016-08-04 Thread Ville Syrjälä
On Fri, Aug 05, 2016 at 06:16:59AM +, Yang, Libin wrote: > Hi Ville, > > > -Original Message- > > From: Ville Syrjälä [mailto:ville.syrj...@linux.intel.com] > > Sent: Friday, August 5, 2016 1:57 PM > > To: Yang, Libin > > Cc: libin.y...@linux.intel.com; intel-gfx@lists.freedesktop.org

Re: [Intel-gfx] [PATCH v3 1/3] drm/i915: set proper N/M in modeset

2016-08-04 Thread Yang, Libin
Hi Ville, > -Original Message- > From: Ville Syrjälä [mailto:ville.syrj...@linux.intel.com] > Sent: Friday, August 5, 2016 1:57 PM > To: Yang, Libin > Cc: libin.y...@linux.intel.com; intel-gfx@lists.freedesktop.org; > jani.nik...@linux.intel.com; Vetter, Daniel ; > ti...@suse.de > Subject

Re: [Intel-gfx] [PATCH v3 1/3] drm/i915: set proper N/M in modeset

2016-08-04 Thread Ville Syrjälä
On Fri, Aug 05, 2016 at 05:39:19AM +, Yang, Libin wrote: > Hi Ville, > > Sorry for delay reply. Please see my comments below. > > > -Original Message- > > From: Ville Syrjälä [mailto:ville.syrj...@linux.intel.com] > > Sent: Thursday, August 4, 2016 4:53 PM > > To: libin.y...@linux.int

Re: [Intel-gfx] [PATCH v3 1/3] drm/i915: set proper N/M in modeset

2016-08-04 Thread Yang, Libin
Hi Ville, Sorry for delay reply. Please see my comments below. > -Original Message- > From: Ville Syrjälä [mailto:ville.syrj...@linux.intel.com] > Sent: Thursday, August 4, 2016 4:53 PM > To: libin.y...@linux.intel.com > Cc: intel-gfx@lists.freedesktop.org; jani.nik...@linux.intel.com; Ve

Re: [Intel-gfx] [PATCH v3 1/3] drm/i915: set proper N/M in modeset

2016-08-04 Thread Ville Syrjälä
On Thu, Aug 04, 2016 at 03:58:02PM +0800, libin.y...@linux.intel.com wrote: > From: Libin Yang > > 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. Otherwise the first > several seconds may be silent in audio pla

[Intel-gfx] [PATCH v3 1/3] drm/i915: set proper N/M in modeset

2016-08-04 Thread libin . yang
From: Libin Yang 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. Otherwise the first several seconds may be silent in audio playback. The relationship of Maud and Naud is expressed in the following equation: Maud/N