ALSA: mips: Use managed buffer allocation

Clean up the drivers 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/20191209094943.14984-18-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/mips/hal2.c

@@ -505,23 +505,6 @@ static const struct snd_pcm_hardware hal2_pcm_hw = {
 	.periods_max =      1024,
 };
 
-static int hal2_pcm_hw_params(struct snd_pcm_substream *substream,
-			      struct snd_pcm_hw_params *params)
-{
-	int err;
-
-	err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
-	if (err < 0)
-		return err;
-
-	return 0;
-}
-
-static int hal2_pcm_hw_free(struct snd_pcm_substream *substream)
-{
-	return snd_pcm_lib_free_pages(substream);
-}
-
 static int hal2_playback_open(struct snd_pcm_substream *substream)
 {
 	struct snd_pcm_runtime *runtime = substream->runtime;
@@ -702,8 +685,6 @@ static const struct snd_pcm_ops hal2_playback_ops = {
 	.open =        hal2_playback_open,
 	.close =       hal2_playback_close,
 	.ioctl =       snd_pcm_lib_ioctl,
-	.hw_params =   hal2_pcm_hw_params,
-	.hw_free =     hal2_pcm_hw_free,
 	.prepare =     hal2_playback_prepare,
 	.trigger =     hal2_playback_trigger,
 	.pointer =     hal2_playback_pointer,
@@ -714,8 +695,6 @@ static const struct snd_pcm_ops hal2_capture_ops = {
 	.open =        hal2_capture_open,
 	.close =       hal2_capture_close,
 	.ioctl =       snd_pcm_lib_ioctl,
-	.hw_params =   hal2_pcm_hw_params,
-	.hw_free =     hal2_pcm_hw_free,
 	.prepare =     hal2_capture_prepare,
 	.trigger =     hal2_capture_trigger,
 	.pointer =     hal2_capture_pointer,
@@ -740,8 +719,8 @@ static int hal2_pcm_create(struct snd_hal2 *hal2)
 			&hal2_playback_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
 			&hal2_capture_ops);
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
-					   NULL, 0, 1024 * 1024);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_CONTINUOUS,
+				       NULL, 0, 1024 * 1024);
 
 	return 0;
 }

sound/mips/sgio2audio.c

@@ -577,20 +577,6 @@ static int snd_sgio2audio_pcm_close(struct snd_pcm_substream *substream)
 	return 0;
 }
 
-
-/* hw_params callback */
-static int snd_sgio2audio_pcm_hw_params(struct snd_pcm_substream *substream,
-					struct snd_pcm_hw_params *hw_params)
-{
-	return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
-}
-
-/* hw_free callback */
-static int snd_sgio2audio_pcm_hw_free(struct snd_pcm_substream *substream)
-{
-	return snd_pcm_lib_free_pages(substream);
-}
-
 /* prepare callback */
 static int snd_sgio2audio_pcm_prepare(struct snd_pcm_substream *substream)
 {
@@ -716,8 +702,7 @@ static int snd_sgio2audio_new_pcm(struct snd_sgio2audio *chip)
 			&snd_sgio2audio_playback1_ops);
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE,
 			&snd_sgio2audio_capture_ops);
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
-					      NULL, 0, 0);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
 
 	/* create second  pcm device with one outputs and no input */
 	err = snd_pcm_new(chip->card, "SGI O2 Audio", 1, 1, 0, &pcm);
@@ -730,8 +715,7 @@ static int snd_sgio2audio_new_pcm(struct snd_sgio2audio *chip)
 	/* set operators */
 	snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 			&snd_sgio2audio_playback2_ops);
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
-					      NULL, 0, 0);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC, NULL, 0, 0);
 
 	return 0;
 }