The commit e7bbb7acabf4 ("dmaengine: add peripheral configuration")
adds peripheral configuration for dma_slave_config.
This configuration is useful for some audio peripherals, for
example, the peripheral supports multi fifos, we can
let the DMA know which fifos are selected. So also add
this configuration for snd_dmaengine_dai_dma_data.
Signed-off-by: Shengjiu Wang <[email protected]>
---
include/sound/dmaengine_pcm.h | 5 +++++
sound/core/pcm_dmaengine.c | 2 ++
2 files changed, 7 insertions(+)
diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h
index 8c5e38180fb0..96666efddb39 100644
--- a/include/sound/dmaengine_pcm.h
+++ b/include/sound/dmaengine_pcm.h
@@ -66,6 +66,9 @@ struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream)
* @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
+ * @peripheral_config: peripheral configuration for programming peripheral
+ * for dmaengine transfer
+ * @peripheral_size: peripheral configuration buffer size
*/
struct snd_dmaengine_dai_dma_data {
dma_addr_t addr;
@@ -76,6 +79,8 @@ struct snd_dmaengine_dai_dma_data {
const char *chan_name;
unsigned int fifo_size;
unsigned int flags;
+ void *peripheral_config;
+ size_t peripheral_size;
};
void snd_dmaengine_pcm_set_config_from_dai_data(
diff --git a/sound/core/pcm_dmaengine.c b/sound/core/pcm_dmaengine.c
index 4d0e8fe535a1..1fc2fa077574 100644
--- a/sound/core/pcm_dmaengine.c
+++ b/sound/core/pcm_dmaengine.c
@@ -125,6 +125,8 @@ void snd_dmaengine_pcm_set_config_from_dai_data(
}
slave_config->slave_id = dma_data->slave_id;
+ slave_config->peripheral_config = dma_data->peripheral_config;
+ slave_config->peripheral_size = dma_data->peripheral_size;
}
EXPORT_SYMBOL_GPL(snd_dmaengine_pcm_set_config_from_dai_data);
--
2.27.0
On Fri, 5 Feb 2021 15:26:25 +0800, Shengjiu Wang wrote:
> The commit e7bbb7acabf4 ("dmaengine: add peripheral configuration")
> adds peripheral configuration for dma_slave_config.
>
> This configuration is useful for some audio peripherals, for
> example, the peripheral supports multi fifos, we can
> let the DMA know which fifos are selected. So also add
> this configuration for snd_dmaengine_dai_dma_data.
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/1] ASoC: dmaengine_pcm: add peripheral configuration
commit: 500c9f8c58a7c8cd5d9c1483569c046cfcfc47a4
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.
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Thanks,
Mark