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From: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
To: Alexandre Bailon <abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
Cc: Grygorii Strashko
	<grygorii.strashko-l0cyMroinI0@public.gmane.org>,
	vinod.koul-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org,
	dmaengine-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	nsekhar-l0cyMroinI0@public.gmane.org,
	khilman-rdvid1DuHRBWk0Htik3J/w@public.gmane.org,
	ptitiano-rdvid1DuHRBWk0Htik3J/w@public.gmane.org,
	linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	andy.shevchenko-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Subject: Re: [PATCH v2 1/2] dmaengine: cppi41: Fix list not empty warning on runtime suspend
Date: Thu, 12 Jan 2017 09:47:56 -0800	[thread overview]
Message-ID: <20170112174756.GI2630@atomide.com> (raw)
In-Reply-To: <e17b04c8-037c-fc6d-84b8-60f968de3b4f-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>

* Alexandre Bailon <abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org> [170112 09:42]:
> This solves the issue but I still have a bad playback quality.
> I don't remember if I have spoken about it so I will describe it.
> When I play audio (with your patch or mine), the music cut a lot.
> The issue go away when the MUSB driver is built in PIO mode only.
> Some experimentation I made today let me think it is related to
> PM runtime.
> I guess I should probably start another thread about that.

OK interesting. We may be able to fix that just by requesting
PM QoS for the audio device. See a fix for similar issue in thread
"[PATCH v6] ASoC: omap-mcbsp: Add PM QoS support for McBSP to
prevent glitches".

Regards,

Tony
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  parent reply	other threads:[~2017-01-12 17:47 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-09 17:03 [PATCH v2 0/2] dmaengine: cppi41: PM runtime fixes Alexandre Bailon
     [not found] ` <20170109170337.6957-1-abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-09 17:03   ` [PATCH v2 1/2] dmaengine: cppi41: Fix list not empty warning on runtime suspend Alexandre Bailon
     [not found]     ` <20170109170337.6957-2-abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-09 18:08       ` Sergei Shtylyov
2017-01-09 18:16       ` Grygorii Strashko
     [not found]         ` <bc8f9562-b33a-1270-ee8f-b2925664172a-l0cyMroinI0@public.gmane.org>
2017-01-10  9:46           ` Alexandre Bailon
2017-01-09 18:34       ` Tony Lindgren
     [not found]         ` <20170109183416.GJ2630-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2017-01-12 17:09           ` Tony Lindgren
     [not found]             ` <20170112170900.GG2630-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2017-01-12 17:23               ` Grygorii Strashko
     [not found]                 ` <ac236cf1-d1e1-8f1f-fb62-b63cabf746d6-l0cyMroinI0@public.gmane.org>
2017-01-12 17:41                   ` Alexandre Bailon
     [not found]                     ` <e17b04c8-037c-fc6d-84b8-60f968de3b4f-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-12 17:47                       ` Tony Lindgren [this message]
2017-01-12 17:45                   ` Tony Lindgren
2017-01-09 17:03   ` [PATCH v2 2/2] dmaengine: cppi41: Ignore EINPROGRESS for PM runtime in interrupt handler Alexandre Bailon
     [not found]     ` <20170109170337.6957-3-abailon-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-09 18:39       ` Tony Lindgren
     [not found]         ` <20170109183946.GK2630-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
2017-01-09 19:11           ` Grygorii Strashko
     [not found]             ` <7f446fd6-23ac-392c-6a2e-6b63843e0299-l0cyMroinI0@public.gmane.org>
2017-01-10 11:34               ` Alexandre Bailon
     [not found]                 ` <7be08973-1233-a19a-a263-3ca194c4854c-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>
2017-01-11  1:05                   ` Andy Shevchenko

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