ASoC: SPEAr: remove custom DMA alloc compat function
spear_pcm_request_chan() is almost identical to
dmaengine_pcm_compat_request_channel(), with the exception that the
latter:
a) Assumes that the DAI DMA data is a struct snd_dmaengine_dai_dma_data
pointer rather than some custom type.
b) dma_data->filter_data rather than dma_data should be passed to
snd_dmaengine_pcm_request_channel() as the filter data.
Make minor changes to the SPEAr DAI drivers so that those two conditions
are met. This allows removal of the custom .compat_request_channel().
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/sound/soc/spear/spear_pcm.c b/sound/soc/spear/spear_pcm.c
index f288724..0e5a8f3 100644
--- a/sound/soc/spear/spear_pcm.c
+++ b/sound/soc/spear/spear_pcm.c
@@ -32,26 +32,19 @@
.fifo_size = 0, /* fifo size in bytes */
};
-static struct dma_chan *spear_pcm_request_chan(struct snd_soc_pcm_runtime *rtd,
- struct snd_pcm_substream *substream)
-{
- struct spear_dma_data *dma_data;
-
- dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
-
- return snd_dmaengine_pcm_request_channel(dma_data->filter, dma_data);
-}
-
static const struct snd_dmaengine_pcm_config spear_dmaengine_pcm_config = {
.pcm_hardware = &spear_pcm_hardware,
- .compat_request_channel = spear_pcm_request_chan,
.prealloc_buffer_size = 16 * 1024,
};
-int devm_spear_pcm_platform_register(struct device *dev)
+int devm_spear_pcm_platform_register(struct device *dev,
+ struct snd_dmaengine_pcm_config *config,
+ bool (*filter)(struct dma_chan *chan, void *slave))
{
- return devm_snd_dmaengine_pcm_register(dev,
- &spear_dmaengine_pcm_config,
+ *config = spear_dmaengine_pcm_config;
+ config->compat_filter_fn = filter;
+
+ return snd_dmaengine_pcm_register(dev, config,
SND_DMAENGINE_PCM_FLAG_NO_DT |
SND_DMAENGINE_PCM_FLAG_COMPAT);
}