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authorLars-Peter Clausen <lars@metafoo.de>2015-04-27 12:44:25 +0200
committerMark Brown <broonie@kernel.org>2015-04-27 19:26:07 +0100
commitacde50a7bf1fd6ae0baa4402f0a02c4b1bd4c990 (patch)
tree84e35f0af077194c30db469497827332ddd673ea /sound/soc/cirrus
parentb787f68c36d49bb1d9236f403813641efa74a031 (diff)
downloadlinux-acde50a7bf1fd6ae0baa4402f0a02c4b1bd4c990.tar.bz2
ASoC: dmaengine_pcm: Make FLAG_NO_RESIDUE internal
Whether residue can be reported or not is not a property of the audio controller but of the DMA controller. The FLAG_NO_RESIDUE was initially added when the DMAengine framework had no support for describing the residue reporting capabilities of the controller. Support for this was added quite a while ago and recently the DMAengine framework started to complain if a driver does not describe its capabilities and a lot of patches have been merged that add support for this where it was missing. So it should be safe to assume that driver on actively used platforms properly implement the DMA capabilities API. This patch makes the FLAG_NO_RESIDUE internal and no longer allows audio controller drivers to manually set the flag. If a DMA driver against expectations does not support reporting its capabilities for now the generic DMAengine PCM driver will now emit a warning and simply assume that residue reporting is not supported. In the future this might be changed to aborting with an error. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/cirrus')
-rw-r--r--sound/soc/cirrus/ep93xx-pcm.c1
1 files changed, 0 insertions, 1 deletions
diff --git a/sound/soc/cirrus/ep93xx-pcm.c b/sound/soc/cirrus/ep93xx-pcm.c
index 5f664471d99e..67a73330db5e 100644
--- a/sound/soc/cirrus/ep93xx-pcm.c
+++ b/sound/soc/cirrus/ep93xx-pcm.c
@@ -60,7 +60,6 @@ int devm_ep93xx_pcm_platform_register(struct device *dev)
{
return devm_snd_dmaengine_pcm_register(dev,
&ep93xx_dmaengine_pcm_config,
- SND_DMAENGINE_PCM_FLAG_NO_RESIDUE |
SND_DMAENGINE_PCM_FLAG_NO_DT |
SND_DMAENGINE_PCM_FLAG_COMPAT);
}