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ASoC: fsl_asrc_dma: Use managed buffer allocation

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This patch simplifies the buffer pre-allocation code of fsl_asrc_dma
driver with the standard managed buffer helper.  It uses the newly
introduced fixed-size buffer allocation helper.

Cc: Nicolin Chen <nicoleotsuka@gmail.com>
Cc: Xiubo Li <Xiubo.Lee@gmail.com>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Shengjiu Wang <shengjiu.wang@gmail.com>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210802072815.13551-11-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2021-08-02 09:28:10 +02:00
parent 189364872f
commit 1855ce6293
1 changed files with 3 additions and 44 deletions
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47
sound/soc/fsl/fsl_asrc_dma.c
View file

@ -284,8 +284,6 @@ static int fsl_asrc_dma_hw_params(struct snd_soc_component *component,
return ret;
}
snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
return 0;
}
@ -297,8 +295,6 @@ static int fsl_asrc_dma_hw_free(struct snd_soc_component *component,
struct fsl_asrc_pair *pair = runtime->private_data;
u8 dir = tx ? OUT : IN;
snd_pcm_set_runtime_buffer(substream, NULL);
if (pair->dma_chan[!dir])
dma_release_channel(pair->dma_chan[!dir]);
@ -423,9 +419,8 @@ static int fsl_asrc_dma_pcm_new(struct snd_soc_component *component,
struct snd_soc_pcm_runtime *rtd)
{
struct snd_card *card = rtd->card->snd_card;
struct snd_pcm_substream *substream;
struct snd_pcm *pcm = rtd->pcm;
int ret, i;
int ret;
ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
if (ret) {
@ -433,43 +428,8 @@ static int fsl_asrc_dma_pcm_new(struct snd_soc_component *component,
return ret;
}
for_each_pcm_streams(i) {
substream = pcm->streams[i].substream;
if (!substream)
continue;
ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, pcm->card->dev,
FSL_ASRC_DMABUF_SIZE, &substream->dma_buffer);
if (ret) {
dev_err(card->dev, "failed to allocate DMA buffer\n");
goto err;
}
}
return 0;
err:
if (--i == 0 && pcm->streams[i].substream)
snd_dma_free_pages(&pcm->streams[i].substream->dma_buffer);
return ret;
}
static void fsl_asrc_dma_pcm_free(struct snd_soc_component *component,
struct snd_pcm *pcm)
{
struct snd_pcm_substream *substream;
int i;
for_each_pcm_streams(i) {
substream = pcm->streams[i].substream;
if (!substream)
continue;
snd_dma_free_pages(&substream->dma_buffer);
substream->dma_buffer.area = NULL;
substream->dma_buffer.addr = 0;
}
return snd_pcm_set_fixed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
card->dev, FSL_ASRC_DMABUF_SIZE);
}
struct snd_soc_component_driver fsl_asrc_component = {
@ -481,6 +441,5 @@ struct snd_soc_component_driver fsl_asrc_component = {
.close = fsl_asrc_dma_shutdown,
.pointer = fsl_asrc_dma_pcm_pointer,
.pcm_construct = fsl_asrc_dma_pcm_new,
.pcm_destruct = fsl_asrc_dma_pcm_free,
};
EXPORT_SYMBOL_GPL(fsl_asrc_component);