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ALSA: aica: Use managed buffer allocation 

Clean up the driver with the new managed buffer allocation API.
The hw_params and hw_free callbacks became superfluous and got
dropped.

Link: https://lore.kernel.org/r/20191209094943.14984-61-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-12-09 10:49:32 +01:00
parent 377d870e54
commit 403d026c43
1 changed files with 5 additions and 24 deletions
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29
sound/sh/aica.c
View File

@ -363,23 +363,6 @@ static int snd_aicapcm_pcm_close(struct snd_pcm_substream
return 0;
}
static int snd_aicapcm_pcm_hw_free(struct snd_pcm_substream
*substream)
{
/* Free the DMA buffer */
return snd_pcm_lib_free_pages(substream);
}
static int snd_aicapcm_pcm_hw_params(struct snd_pcm_substream
*substream, struct snd_pcm_hw_params
*hw_params)
{
/* Allocate a DMA buffer using ALSA built-ins */
return
snd_pcm_lib_malloc_pages(substream,
params_buffer_bytes(hw_params));
}
static int snd_aicapcm_pcm_prepare(struct snd_pcm_substream
*substream)
{
@ -417,8 +400,6 @@ static const struct snd_pcm_ops snd_aicapcm_playback_ops = {
.open = snd_aicapcm_pcm_open,
.close = snd_aicapcm_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_aicapcm_pcm_hw_params,
.hw_free = snd_aicapcm_pcm_hw_free,
.prepare = snd_aicapcm_pcm_prepare,
.trigger = snd_aicapcm_pcm_trigger,
.pointer = snd_aicapcm_pcm_pointer,
@ -441,11 +422,11 @@ static int __init snd_aicapcmchip(struct snd_card_aica
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
&snd_aicapcm_playback_ops);
/* Allocate the DMA buffers */
snd_pcm_lib_preallocate_pages_for_all(pcm,
SNDRV_DMA_TYPE_CONTINUOUS,
NULL,
AICA_BUFFER_SIZE,
AICA_BUFFER_SIZE);
snd_pcm_set_managed_buffer_all(pcm,
SNDRV_DMA_TYPE_CONTINUOUS,
NULL,
AICA_BUFFER_SIZE,
AICA_BUFFER_SIZE);
return 0;
}