diff options
author | Takashi Iwai <tiwai@suse.de> | 2021-08-02 09:28:12 +0200 |
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committer | Takashi Iwai <tiwai@suse.de> | 2021-08-04 08:09:16 +0200 |
commit | 3610a6d1dbd19b344bdf5b6647b2750efe55fe2e (patch) | |
tree | b451764ea1403ca7cfb61066ce358c04c7fe1806 /sound/soc/fsl | |
parent | e159704f792014a23b92b85f62a8f990b08bd7e2 (diff) | |
download | linux-3610a6d1dbd19b344bdf5b6647b2750efe55fe2e.tar.bz2 |
ASoC: mpc5200: Use managed buffer allocation
This patch simplifies the buffer pre-allocation code of fsl mpc5200
driver with the standard managed buffer helper. It uses the newly
introduced fixed-size buffer allocation helper.
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210802072815.13551-13-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/soc/fsl')
-rw-r--r-- | sound/soc/fsl/mpc5200_dma.c | 63 |
1 files changed, 2 insertions, 61 deletions
diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c index 6c65cd858b0b..901497810020 100644 --- a/sound/soc/fsl/mpc5200_dma.c +++ b/sound/soc/fsl/mpc5200_dma.c @@ -98,13 +98,6 @@ static irqreturn_t psc_dma_bcom_irq(int irq, void *_psc_dma_stream) return IRQ_HANDLED; } -static int psc_dma_hw_free(struct snd_soc_component *component, - struct snd_pcm_substream *substream) -{ - snd_pcm_set_runtime_buffer(substream, NULL); - return 0; -} - /** * psc_dma_trigger: start and stop the DMA transfer. * @@ -285,15 +278,6 @@ psc_dma_pointer(struct snd_soc_component *component, return bytes_to_frames(substream->runtime, count); } -static int psc_dma_hw_params(struct snd_soc_component *component, - struct snd_pcm_substream *substream, - struct snd_pcm_hw_params *params) -{ - snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); - - return 0; -} - static int psc_dma_new(struct snd_soc_component *component, struct snd_soc_pcm_runtime *rtd) { @@ -310,60 +294,17 @@ static int psc_dma_new(struct snd_soc_component *component, if (rc) return rc; - if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) { - rc = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, pcm->card->dev, - size, &pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->dma_buffer); - if (rc) - goto playback_alloc_err; - } - - if (pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream) { - rc = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, pcm->card->dev, - size, &pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream->dma_buffer); - if (rc) - goto capture_alloc_err; - } - - return 0; - - capture_alloc_err: - if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) - snd_dma_free_pages(&pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->dma_buffer); - - playback_alloc_err: - dev_err(card->dev, "Cannot allocate buffer(s)\n"); - - return -ENOMEM; -} - -static void psc_dma_free(struct snd_soc_component *component, - struct snd_pcm *pcm) -{ - struct snd_pcm_substream *substream; - int stream; - - dev_dbg(component->dev, "psc_dma_free(pcm=%p)\n", pcm); - - for (stream = 0; stream < 2; stream++) { - substream = pcm->streams[stream].substream; - if (substream) { - 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, + size); } static const struct snd_soc_component_driver mpc5200_audio_dma_component = { .name = DRV_NAME, .open = psc_dma_open, .close = psc_dma_close, - .hw_free = psc_dma_hw_free, .pointer = psc_dma_pointer, .trigger = psc_dma_trigger, - .hw_params = psc_dma_hw_params, .pcm_construct = psc_dma_new, - .pcm_destruct = psc_dma_free, }; int mpc5200_audio_dma_create(struct platform_device *op) |