ALSA: ymfpci: Use managed buffer allocation

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

Link: https://lore.kernel.org/r/20191209094943.14984-57-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/ymfpci/ymfpci_main.c

@@ -628,8 +628,6 @@ static int snd_ymfpci_playback_hw_params(struct snd_pcm_substream *substream,
 	struct snd_ymfpci_pcm *ypcm = runtime->private_data;
 	int err;
 
-	if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
-		return err;
 	if ((err = snd_ymfpci_pcm_voice_alloc(ypcm, params_channels(hw_params))) < 0)
 		return err;
 	return 0;
@@ -647,7 +645,6 @@ static int snd_ymfpci_playback_hw_free(struct snd_pcm_substream *substream)
 
 	/* wait, until the PCI operations are not finished */
 	snd_ymfpci_irq_wait(chip);
-	snd_pcm_lib_free_pages(substream);
 	if (ypcm->voices[1]) {
 		snd_ymfpci_voice_free(chip, ypcm->voices[1]);
 		ypcm->voices[1] = NULL;
@@ -683,19 +680,13 @@ static int snd_ymfpci_playback_prepare(struct snd_pcm_substream *substream)
 	return 0;
 }
 
-static int snd_ymfpci_capture_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));
-}
-
 static int snd_ymfpci_capture_hw_free(struct snd_pcm_substream *substream)
 {
 	struct snd_ymfpci *chip = snd_pcm_substream_chip(substream);
 
 	/* wait, until the PCI operations are not finished */
 	snd_ymfpci_irq_wait(chip);
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 
 static int snd_ymfpci_capture_prepare(struct snd_pcm_substream *substream)
@@ -1124,7 +1115,6 @@ static const struct snd_pcm_ops snd_ymfpci_capture_rec_ops = {
 	.open =			snd_ymfpci_capture_rec_open,
 	.close =		snd_ymfpci_capture_close,
 	.ioctl =		snd_pcm_lib_ioctl,
-	.hw_params =		snd_ymfpci_capture_hw_params,
 	.hw_free =		snd_ymfpci_capture_hw_free,
 	.prepare =		snd_ymfpci_capture_prepare,
 	.trigger =		snd_ymfpci_capture_trigger,
@@ -1148,9 +1138,8 @@ int snd_ymfpci_pcm(struct snd_ymfpci *chip, int device)
 	strcpy(pcm->name, "YMFPCI");
 	chip->pcm = pcm;
 
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-					      &chip->pci->dev,
-					      64*1024, 256*1024);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+				       &chip->pci->dev, 64*1024, 256*1024);
 
 	return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 				     snd_pcm_std_chmaps, 2, 0, NULL);
@@ -1160,7 +1149,6 @@ static const struct snd_pcm_ops snd_ymfpci_capture_ac97_ops = {
 	.open =			snd_ymfpci_capture_ac97_open,
 	.close =		snd_ymfpci_capture_close,
 	.ioctl =		snd_pcm_lib_ioctl,
-	.hw_params =		snd_ymfpci_capture_hw_params,
 	.hw_free =		snd_ymfpci_capture_hw_free,
 	.prepare =		snd_ymfpci_capture_prepare,
 	.trigger =		snd_ymfpci_capture_trigger,
@@ -1184,9 +1172,8 @@ int snd_ymfpci_pcm2(struct snd_ymfpci *chip, int device)
 		chip->device_id == PCI_DEVICE_ID_YAMAHA_754 ? "Direct Recording" : "AC'97");
 	chip->pcm2 = pcm;
 
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-					      &chip->pci->dev,
-					      64*1024, 256*1024);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+				       &chip->pci->dev, 64*1024, 256*1024);
 
 	return 0;
 }
@@ -1218,9 +1205,8 @@ int snd_ymfpci_pcm_spdif(struct snd_ymfpci *chip, int device)
 	strcpy(pcm->name, "YMFPCI - IEC958");
 	chip->pcm_spdif = pcm;
 
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-					      &chip->pci->dev,
-					      64*1024, 256*1024);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+				       &chip->pci->dev, 64*1024, 256*1024);
 
 	return 0;
 }
@@ -1260,9 +1246,8 @@ int snd_ymfpci_pcm_4ch(struct snd_ymfpci *chip, int device)
 	strcpy(pcm->name, "YMFPCI - Rear PCM");
 	chip->pcm_4ch = pcm;
 
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-					      &chip->pci->dev,
-					      64*1024, 256*1024);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+				       &chip->pci->dev, 64*1024, 256*1024);
 
 	return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 				     surround_map, 2, 0, NULL);