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ALSA: spi: Use managed buffer allocation 

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

Link: https://lore.kernel.org/r/20191209094943.14984-64-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-12-09 10:49:35 +01:00
parent 786e90b0d0
commit ce747f8642
1 changed files with 2 additions and 9 deletions
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11
sound/spi/at73c213.c
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@ -242,13 +242,7 @@ static int snd_at73c213_pcm_hw_params(struct snd_pcm_substream *substream,
val = SSC_BFINS(TFMR_DATNB, channels - 1, val);
ssc_writel(chip->ssc->regs, TFMR, val);
return snd_pcm_lib_malloc_pages(substream,
params_buffer_bytes(hw_params));
}
static int snd_at73c213_pcm_hw_free(struct snd_pcm_substream *substream)
{
return snd_pcm_lib_free_pages(substream);
return 0;
}
static int snd_at73c213_pcm_prepare(struct snd_pcm_substream *substream)
@ -324,7 +318,6 @@ static const struct snd_pcm_ops at73c213_playback_ops = {
.close = snd_at73c213_pcm_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_at73c213_pcm_hw_params,
.hw_free = snd_at73c213_pcm_hw_free,
.prepare = snd_at73c213_pcm_prepare,
.trigger = snd_at73c213_pcm_trigger,
.pointer = snd_at73c213_pcm_pointer,
@ -347,7 +340,7 @@ static int snd_at73c213_pcm_new(struct snd_at73c213 *chip, int device)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &at73c213_playback_ops);
snd_pcm_lib_preallocate_pages_for_all(chip->pcm,
snd_pcm_set_managed_buffer_all(chip->pcm,
SNDRV_DMA_TYPE_DEV, &chip->ssc->pdev->dev,
64 * 1024, 64 * 1024);
out: