From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
To: Caleb Crome <caleb@crome.org>
Cc: Takashi Iwai <tiwai@suse.de>,
han.lu@intel.com,
"alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>,
Mark Brown <broonie@kernel.org>,
bernard.gautier@intel.com
Subject: Re: [PATCH BAT V1 0/7] BAT: Add Basic Audio Tester command line tool
Date: Fri, 18 Sep 2015 10:09:07 +0100 [thread overview]
Message-ID: <1442567347.7634.12.camel@loki> (raw)
In-Reply-To: <CAG5mAdw1jjVGeTi2k0QLCTVv+Qr-Hy3UMZLuT1M=f2uHje32kw@mail.gmail.com>
On Thu, 2015-09-17 at 06:29 -0700, Caleb Crome wrote:
> >> > We have also used BAT for stress testing audio over D0 -> D3 -> D0 transitions.
> >>
> >> Sorry, I'm not familiar with that terminology. Are those the
> >> different power states?
> >
> > Yes, PM suspend and resume of device. We have some scripts (to be
> > upstreamed later) that would play audio, suspend the device, resume the
> > device and then retest the audio.
>
> That seems particularly likely to result in multiple codecs getting
> out of phase alignment. i.e. when restarting, you want to be sure to
> follow the same startup procedure as the first time to make sure all
> codecs are aligned.
>
This was more for testing our DSP and codec context was properly
saved/restored and also our codec was properly powered down/up during PM
state changes.
Liam
next prev parent reply other threads:[~2015-09-18 9:09 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-15 7:00 [PATCH BAT V1 0/7] BAT: Add Basic Audio Tester command line tool han.lu
2015-09-15 7:00 ` [PATCH BAT V1 1/7] BAT: Add initial functions han.lu
2015-09-15 7:00 ` [PATCH BAT V1 2/7] BAT: Add common definitions and functions han.lu
2015-09-15 7:00 ` [PATCH BAT V1 3/7] BAT: Add playback and record functions han.lu
2015-09-15 7:00 ` [PATCH BAT V1 4/7] BAT: Add signal generator han.lu
2015-09-18 16:50 ` Caleb Crome
2015-09-21 6:44 ` Liam Girdwood
2015-09-15 7:00 ` [PATCH BAT V1 5/7] BAT: Add converting functions han.lu
2015-09-15 7:00 ` [PATCH BAT V1 6/7] BAT: Add spectrum analysis functions han.lu
2015-09-15 7:00 ` [PATCH BAT V1 7/7] BAT: Add Makefile and configures han.lu
2015-09-16 3:23 ` [PATCH BAT V1 0/7] BAT: Add Basic Audio Tester command line tool Caleb Crome
2015-09-16 11:40 ` Liam Girdwood
2015-09-16 16:43 ` Caleb Crome
2015-09-17 10:40 ` Liam Girdwood
2015-09-17 13:29 ` Caleb Crome
2015-09-17 17:42 ` Mark Brown
2015-09-17 18:50 ` Caleb Crome
2015-09-17 22:40 ` Caleb Crome
2015-09-17 23:00 ` James Cameron
2015-09-17 23:30 ` Caleb Crome
2015-09-18 9:09 ` Liam Girdwood [this message]
2015-09-16 16:37 ` Mark Brown
2015-09-16 16:57 ` Liam Girdwood
2015-09-16 20:34 ` Mark Brown
2015-09-19 16:40 ` Takashi Iwai
2015-09-21 6:33 ` Liam Girdwood
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