linux-kernel - Re: [PATCH v3 00/15] ASoC: OMAP: Convert to use dmaengine

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Date:	Mon, 17 Sep 2012 08:47:46 +0530
From:	Vinod Koul <vinod.koul@...ux.intel.com>
To:	Peter Ujfalusi <peter.ujfalusi@...com>
Cc:	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Liam Girdwood <lrg@...com>, Tony Lindgren <tony@...mide.com>,
	Russell King <rmk+kernel@....linux.org.uk>,
	Dan Williams <djbw@...com>,
	Jarkko Nikula <jarkko.nikula@...mer.com>,
	alsa-devel@...a-project.org, linux-omap@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Janusz Krzysztofik <jkrzyszt@....icnet.pl>,
	Ricardo Neri <ricardo.neri@...com>,
	Lars-Peter Clausen <lars@...afoo.de>
Subject: Re: [PATCH v3 00/15] ASoC: OMAP: Convert to use dmaengine

On Fri, 2012-09-14 at 15:05 +0300, Peter Ujfalusi wrote:
> Hello,

dmaengine parts look good to me. How do you want to get this merged,
dmaengine or ASoC tree?
> 
> 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?
> Ricardo: Can you test the omap-hmdi if it is still working?
> 
> Regards,
> Peter
> ---
> Peter Ujfalusi (15):
>   dmaengine: omap: Support for element mode in cyclic DMA
>   dmaengine: omap: Add support for pause/resume in cyclic dma mode
>   dmaengine: Add flags parameter to dmaengine_prep_dma_cyclic()
>   dmaengine: Pass flags via device_prep_dma_cyclic() callback
>   dmaengine: omap-dma: Add support to suppress interrupts in cyclic
>     mode
>   ASoC: omap-mcbsp: Use sDMA packet mode instead of frame mode
>   ASoC: omap-pcm: Select sDMA synchronization based on packet_size
>   ASoC: OMAP: Remove sync_mode from omap_pcm_dma_data struct
>   ASoC: omap-pcm: Prepare to configure the DMA data_type based on
>     stream properties
>   ARM: OMAP4: hwmod_data: Add resource names to McPDM memory ranges
>   ASoC: omap-mcpdm: Use platform_get_resource_* to get resources
>   ASoC: OMAP: mcbsp, mcpdm, dmic: Let omap-pcm to pick the dma_type
>   ASoC: omap-pcm, omap-dmic: Change the use of
>     omap_pcm_dma_data->data_type
>   ASoC: OMAP: mcbsp, mcpdm, dmic, hdmi: Set dma_data at startup time
>   ASoC: omap-pcm: Convert to use dmaengine
> 
>  arch/arm/mach-omap2/omap_hwmod_44xx_data.c |   2 +
>  drivers/dma/at_hdmac.c                     |   3 +-
>  drivers/dma/ep93xx_dma.c                   |   4 +-
>  drivers/dma/imx-dma.c                      |   2 +-
>  drivers/dma/imx-sdma.c                     |   2 +-
>  drivers/dma/mmp_tdma.c                     |   2 +-
>  drivers/dma/mxs-dma.c                      |   2 +-
>  drivers/dma/omap-dma.c                     |  45 ++++--
>  drivers/dma/pl330.c                        |   2 +-
>  drivers/dma/sa11x0-dma.c                   |   2 +-
>  drivers/dma/sirf-dma.c                     |   2 +-
>  drivers/dma/ste_dma40.c                    |   3 +-
>  drivers/dma/tegra20-apb-dma.c              |   2 +-
>  include/linux/dmaengine.h                  |   7 +-
>  sound/soc/omap/Kconfig                     |   3 +-
>  sound/soc/omap/omap-dmic.c                 |   9 +-
>  sound/soc/omap/omap-hdmi.c                 |  17 ++-
>  sound/soc/omap/omap-mcbsp.c                |  60 +++-----
>  sound/soc/omap/omap-mcpdm.c                |  40 +++--
>  sound/soc/omap/omap-pcm.c                  | 236 ++++++++---------------------
>  sound/soc/omap/omap-pcm.h                  |   4 +-
>  sound/soc/soc-dmaengine-pcm.c              |   6 +-
>  22 files changed, 186 insertions(+), 269 deletions(-)
> 


-- 
~Vinod

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