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Message-ID: <3759862.8IETAs1y1n@acer>
Date: Sat, 15 Sep 2012 23:38:32 +0200
From: Janusz Krzysztofik <jkrzyszt@....icnet.pl>
To: alsa-devel@...a-project.org
Cc: Peter Ujfalusi <peter.ujfalusi@...com>,
Mark Brown <broonie@...nsource.wolfsonmicro.com>,
Liam Girdwood <lrg@...com>, Tony Lindgren <tony@...mide.com>,
Russell King <rmk+kernel@....linux.org.uk>,
Vinod Koul <vinod.koul@...el.com>, Dan Williams <djbw@...com>,
Jarkko Nikula <jarkko.nikula@...mer.com>,
Lars-Peter Clausen <lars@...afoo.de>,
Ricardo Neri <ricardo.neri@...com>,
linux-kernel@...r.kernel.org, linux-omap@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: Re: [alsa-devel] [PATCH v3 00/15] ASoC: OMAP: Convert to use dmaengine
Dnia piątek, 14 września 2012 15:05:43 Peter Ujfalusi pisze:
> Hello,
>
> Changes since v2:
> - As it has been discussed the no_wakeup parameter has been replaced with flags
> for the dmaengine APIs
>
> Changes since v1:
> - Support for pause/resume for OMAP audio via dmaengine
> - dmaengine: support for NO_PERIOD_WAKEUP in cyclic mode
> - OMAP to keep supporting NO_PERIOD_WAKEUP for audio
> - Other plaforms can also try to enable this mode since we have now generic
> interface to do so.
>
> This series will switch the OMAP audio to use dmaengine.
> The final patch which does the switch was based on Russell King's earlier patch.
>
> The first 10 patch is to prepare the OMAP audio drivers for a smooth change to
> dmaengine:
> - sDMA FRAME sync mode is removed and replaced with PACKET mode
> - dai drivers no longer need to configure sDMA sync mode
> - dai drivers does not need to specify the DMA word length - with the exception
> of the omap-hdmi driver which requires 32bit word length regardless of the
> audio format in use
> - the McPDM driver used (to my surprise) hackish way of getting the DMA channel
> and address - via defines from some header files
>
> After the conversion OMAP audio support should have the same features as before,
> no regressions expected.
>
> I have tested the series on:
> - BeagleBoard (audio via McBSP):
> - aplay/arecord. In element mode and in threshold mode with different period
> sizes
> - mplayer -ao alsa: for direct ALSA access
> - mplayer -ao pulse: via PulseAudio to test NO_PERIOD_WAKEUP feature
> - OMAP4 Blaze (audio via McPDM and DMIC)
> - aplay/arecord
> - mplayer -ao alsa: for direct ALSA access
> - mplayer -ao pulse: via PulseAudio to test NO_PERIOD_WAKEUP feature
>
> The patches has been generated against:
> git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-3.7
>
> Janusz: Can you retest this series on OMAP1 to be sure I have not broken it?
Hi Peter,
It looks like you haven't :-).
For OMAP1:
Tested-by: Janusz Krzysztofik <jkrzyszt@....icnet.pl>
Thanks,
Janusz
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