diff options
| author | Lars-Peter Clausen <lars@metafoo.de> | 2013-04-15 19:19:55 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2013-04-17 15:25:56 +0200 |
| commit | 610f780050090db1af024bd060f819478a656cd0 (patch) | |
| tree | b45de808e58ddf8c879aa1aca49d6dc1629475a3 /include/sound | |
| parent | ASoC: tegra: Use generic dmaengine PCM (diff) | |
| download | linux-610f780050090db1af024bd060f819478a656cd0.tar.xz linux-610f780050090db1af024bd060f819478a656cd0.zip | |
ASoC: dmaengine-pcm: Add support for platforms which can't report residue
Unfortunately there are still quite a few platforms with a dmaengine driver
which do not support reporting the number of bytes left to transfer. If we want
to support these platforms in the generic dmaengine PCM driver we have.
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Tested-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/sound')
| -rw-r--r-- | include/sound/dmaengine_pcm.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h index 1a7897ab3572..e7052862d6b2 100644 --- a/include/sound/dmaengine_pcm.h +++ b/include/sound/dmaengine_pcm.h @@ -86,6 +86,11 @@ void snd_dmaengine_pcm_set_config_from_dai_data( * makes sense if SND_DMAENGINE_PCM_FLAG_COMPAT is set as well. */ #define SND_DMAENGINE_PCM_FLAG_NO_DT BIT(1) +/* + * The platforms dmaengine driver does not support reporting the ammount of + * bytes that are still left to transfer. + */ +#define SND_DMAENGINE_PCM_FLAG_NO_RESIDUE BIT(2) /** * struct snd_dmaengine_pcm_config - Configuration data for dmaengine based PCM |