[alsa-devel] [PATCH v2 0/4] ASoC: Regression fix for OMAP in DT boot (3.11)
lars at metafoo.de
Thu Jul 11 16:02:10 CEST 2013
On 07/11/2013 02:35 PM, Peter Ujfalusi wrote:
> Changes since v1:
> - Drop the change in dmaengine_pcm.h
> - Use .filter_data to store the DMA channel name
> - omap-pcm: checks if the DAI is probed via DT and uses decides which method to
> use to request the DMA channel
> - Dropped the cleanup patch for omap-dmic from the series
> I will send another series with cleanups later
> I just noticed in mainline kernel (pre 3.11-rc1) that OMAP4 audio is not probing
> anymore. This is because OMAP4 also moved to DT only mode (3.10 DT boot was
> The issue underneath is that we can not use platform_get_resource_byname() for
> DMA resources when booted with devicetree.
> In case of DT boot we can use the DMA name to request the channel.
> Due to technical issues OMAP can not be moved to generic dmaengine pcm as other
> SoCs did.
> Mark: can you queue this series for 3.11? Thank you.
Looks good, all 4 patches:
Reviewed-by: Lars-Peter Clausen <lars at metafoo.de>
But I'm wondering who do you register the PCM device in the DT case? Do you
have a separate DT node for the PCM device?
> Peter Ujfalusi (4):
> ASoC: omap-pcm: Request the DMA channel differently when DT is
> ASoC: omap-mcpdm: Do not use platform_get_resource_byname() for DMA
> ASoC: omap-dmic: Do not use platform_get_resource_byname() for DMA
> ASoC: omap-mcbsp: Use different method for DMA request when booted
> with DT
> sound/soc/omap/mcbsp.c | 39 ++++++++++++++++++++++-----------------
> sound/soc/omap/omap-dmic.c | 11 +----------
> sound/soc/omap/omap-mcpdm.c | 16 ++--------------
> sound/soc/omap/omap-pcm.c | 17 ++++++++++++++---
> 4 files changed, 39 insertions(+), 44 deletions(-)
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