ALSA: ice1724: Use managed buffer allocation

Clean up the driver with the new managed buffer allocation API.
The superfluous snd_pcm_lib_malloc_pages() and
snd_pcm_lib_free_pages() calls are dropped.

Link: https://lore.kernel.org/r/20191209094943.14984-43-tiwai@suse.deSigned-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/ice1712/ice1724.c

@@ -704,7 +704,7 @@ static int snd_vt1724_pcm_hw_params(struct snd_pcm_substream *substream,
 				    struct snd_pcm_hw_params *hw_params)
 {
 	struct snd_ice1712 *ice = snd_pcm_substream_chip(substream);
-	int i, chs, err;
+	int i, chs;
 
 	chs = params_channels(hw_params);
 	mutex_lock(&ice->open_mutex);
@@ -740,11 +740,7 @@ static int snd_vt1724_pcm_hw_params(struct snd_pcm_substream *substream,
 	}
 	mutex_unlock(&ice->open_mutex);
 
-	err = snd_vt1724_set_pro_rate(ice, params_rate(hw_params), 0);
-	if (err < 0)
-		return err;
-
-	return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
+	return snd_vt1724_set_pro_rate(ice, params_rate(hw_params), 0);
 }
 
 static int snd_vt1724_pcm_hw_free(struct snd_pcm_substream *substream)
@@ -758,7 +754,7 @@ static int snd_vt1724_pcm_hw_free(struct snd_pcm_substream *substream)
 		if (ice->pcm_reserved[i] == substream)
 			ice->pcm_reserved[i] = NULL;
 	mutex_unlock(&ice->open_mutex);
-	return snd_pcm_lib_free_pages(substream);
+	return 0;
 }
 
 static int snd_vt1724_playback_pro_prepare(struct snd_pcm_substream *substream)
@@ -1142,9 +1138,8 @@ static int snd_vt1724_pcm_profi(struct snd_ice1712 *ice, int device)
 	pcm->info_flags = 0;
 	strcpy(pcm->name, "ICE1724");
 
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-					      &ice->pci->dev,
-					      256*1024, 256*1024);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+				       &ice->pci->dev, 256*1024, 256*1024);
 
 	ice->pcm_pro = pcm;
 
@@ -1340,9 +1335,8 @@ static int snd_vt1724_pcm_spdif(struct snd_ice1712 *ice, int device)
 	pcm->info_flags = 0;
 	strcpy(pcm->name, name);
 
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-					      &ice->pci->dev,
-					      256*1024, 256*1024);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+				       &ice->pci->dev, 256*1024, 256*1024);
 
 	ice->pcm = pcm;
 
@@ -1454,9 +1448,8 @@ static int snd_vt1724_pcm_indep(struct snd_ice1712 *ice, int device)
 	pcm->info_flags = 0;
 	strcpy(pcm->name, "ICE1724 Surround PCM");
 
-	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-					      &ice->pci->dev,
-					      256*1024, 256*1024);
+	snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+				       &ice->pci->dev, 256*1024, 256*1024);
 
 	ice->pcm_ds = pcm;