According to the bspec, when set N/M, should disable
and enable transcoder which attaching DP audio. However
with that implementation will affect performance more.
But with current implementation, KBL could not work with defined N/M.
By default, KBL will use automatic N/M.
Signed-off-by: Quanxian
On Fri, 26 May 2017, Quanxian Wang wrote:
> According to the bspec, when set N/M, should disable
> and enable transcoder which attaching DP audio. However
> with that implementation will affect performance more.
>
> But with current implementation, KBL could not work with defined N/M.
> By default
Hi, Jani
Thanks for your comment. My comment below.
-Original Message-
From: Jani Nikula [mailto:jani.nik...@linux.intel.com]
Sent: Friday, May 26, 2017 4:31 PM
To: Wang, Quanxian ; intel-gfx@lists.freedesktop.org
Cc: Yang, Libin ; Wang, Quanxian
Subject: Re: [PATCH] Defined NM doesn't
On Fri, 26 May 2017, "Wang, Quanxian" wrote:
> [Wang, Quanxian] in Ubuntu 17.04, we do audio testing on KBL/SKL/APL
> and more, the audio doesn't work on KBL specially, and other platform
> works fine. Even if with latest upstream kernel, but it works on 4.8
> kernel. Therefore It is a regression
"The patch is probably fine. But I can't invent an explanation if I don't know
what the problem is."
@Jani @libin, is it possible for you to help contact Intel graphics hardware
design engineer to get the reason why M/N doesn't work as you implemented in
kernel code in Kabylake platform? I don'
On Fri, 26 May 2017, "Wang, Quanxian" wrote:
> "The patch is probably fine. But I can't invent an explanation if I
> don't know what the problem is."
>
> @Jani @libin, is it possible for you to help contact Intel graphics
> hardware design engineer to get the reason why M/N doesn't work as you
>
-Original Message-
From: Jani Nikula [mailto:jani.nik...@linux.intel.com]
Sent: Monday, May 29, 2017 4:29 PM
To: Wang, Quanxian ; intel-gfx@lists.freedesktop.org
Cc: Yang, Libin
Subject: RE: [PATCH] Defined NM doesn't work on KBL and uses automatic N/M.
On Fri, 26 May 2017, "Wang, Qua
] On Behalf Of
Wang, Quanxian
Sent: Wednesday, May 31, 2017 11:21 AM
To: Jani Nikula ; intel-gfx@lists.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH] Defined NM doesn't work on KBL and uses
automatic N/M.
-Original Message-
From: Jani Nikula [mailto:jani.nik...@linux.intel.com]