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| author | Sylwester Nawrocki <s.nawrocki@samsung.com> | 2017-01-17 14:16:41 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-01-23 19:16:33 +0100 |
| commit | 9bfa24e90956cc79362572391657b84cf54a559a (patch) | |
| tree | 42054d8feed6201b0eb86976f24ce9a07b316a9f /include/sound/dmaengine_pcm.h | |
| parent | ASoC: Revert "samsung: Remove unneeded initialization of chan_name" (diff) | |
| download | linux-9bfa24e90956cc79362572391657b84cf54a559a.tar.xz linux-9bfa24e90956cc79362572391657b84cf54a559a.zip | |
ASoC: Revert "Drop SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME flag"
This reverts commit c6644119a3f80ea644bde10009d5e1013b5aff29 and
restores the ability to specify DMA channel names per DAI dma_data.
Unfortunately the functionality removed in the patch being reverted
cannot be entirely replaced by specifying DMA channel names in struct
snd_dmaengine_pcm_config as that does not cover devices with more than
2 DMA channels.
Together with patch "ASoC: Revert "samsung: Remove unneeded
initialization of chan_name"" this fixes broken sound on the s3c24xx
SoC platforms.
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'include/sound/dmaengine_pcm.h')
| -rw-r--r-- | include/sound/dmaengine_pcm.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h index 1c8f9e1ef2a5..67be2445941a 100644 --- a/include/sound/dmaengine_pcm.h +++ b/include/sound/dmaengine_pcm.h @@ -71,6 +71,7 @@ struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream) * @slave_id: Slave requester id for the DMA channel. * @filter_data: Custom DMA channel filter data, this will usually be used when * requesting the DMA channel. + * @chan_name: Custom channel name to use when requesting DMA channel. * @fifo_size: FIFO size of the DAI controller in bytes * @flags: PCM_DAI flags, only SND_DMAENGINE_PCM_DAI_FLAG_PACK for now */ @@ -80,6 +81,7 @@ struct snd_dmaengine_dai_dma_data { u32 maxburst; unsigned int slave_id; void *filter_data; + const char *chan_name; unsigned int fifo_size; unsigned int flags; }; @@ -105,6 +107,10 @@ void snd_dmaengine_pcm_set_config_from_dai_data( * playback. */ #define SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX BIT(3) +/* + * The PCM streams have custom channel names specified. + */ +#define SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME BIT(4) /** * struct snd_dmaengine_pcm_config - Configuration data for dmaengine based PCM |