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ALSA: pmac: 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/20191209094943.14984-59-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2019-12-09 10:49:30 +01:00
parent 6dfa8fd598
commit 01001fa1c7
1 changed files with 3 additions and 25 deletions
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24
sound/ppc/pmac.c
View File

@ -107,24 +107,6 @@ static inline int another_stream(int stream)
SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
}
/*
* allocate buffers
*/
static int snd_pmac_pcm_hw_params(struct snd_pcm_substream *subs,
struct snd_pcm_hw_params *hw_params)
{
return snd_pcm_lib_malloc_pages(subs, params_buffer_bytes(hw_params));
}
/*
* release buffers
*/
static int snd_pmac_pcm_hw_free(struct snd_pcm_substream *subs)
{
snd_pcm_lib_free_pages(subs);
return 0;
}
/*
* get a stream of the opposite direction
*/
@ -672,8 +654,6 @@ static const struct snd_pcm_ops snd_pmac_playback_ops = {
.open = snd_pmac_playback_open,
.close = snd_pmac_playback_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_pmac_pcm_hw_params,
.hw_free = snd_pmac_pcm_hw_free,
.prepare = snd_pmac_playback_prepare,
.trigger = snd_pmac_playback_trigger,
.pointer = snd_pmac_playback_pointer,
@ -683,8 +663,6 @@ static const struct snd_pcm_ops snd_pmac_capture_ops = {
.open = snd_pmac_capture_open,
.close = snd_pmac_capture_close,
.ioctl = snd_pcm_lib_ioctl,
.hw_params = snd_pmac_pcm_hw_params,
.hw_free = snd_pmac_pcm_hw_free,
.prepare = snd_pmac_capture_prepare,
.trigger = snd_pmac_capture_trigger,
.pointer = snd_pmac_capture_pointer,
@ -721,7 +699,7 @@ int snd_pmac_pcm_new(struct snd_pmac *chip)
chip->capture.cur_freqs = chip->freqs_ok;
/* preallocate 64k buffer */
snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
&chip->pdev->dev,
64 * 1024, 64 * 1024);