ALSA: pcsp: 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() are dropped.

Link: https://lore.kernel.org/r/20191209094943.14984-8-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/drivers/pcsp/pcsp_lib.c b/sound/drivers/pcsp/pcsp_lib.c
index f91316b..4fdc4db 100644 (file)
--- a/sound/drivers/pcsp/pcsp_lib.c
+++ b/sound/drivers/pcsp/pcsp_lib.c
@@ -214,12 +214,7 @@ static int snd_pcsp_playback_hw_params(struct snd_pcm_substream *substream,
                                       struct snd_pcm_hw_params *hw_params)
 {
        struct snd_pcsp *chip = snd_pcm_substream_chip(substream);
-       int err;
        pcsp_sync_stop(chip);
-       err = snd_pcm_lib_malloc_pages(substream,
-                                     params_buffer_bytes(hw_params));
-       if (err < 0)
-               return err;
        return 0;
 }
 
@@ -230,7 +225,7 @@ static int snd_pcsp_playback_hw_free(struct snd_pcm_substream *substream)
        printk(KERN_INFO "PCSP: hw_free called\n");
 #endif
        pcsp_sync_stop(chip);
-       return snd_pcm_lib_free_pages(substream);
+       return 0;
 }
 
 static int snd_pcsp_playback_prepare(struct snd_pcm_substream *substream)
@@ -350,11 +345,11 @@ int snd_pcsp_new_pcm(struct snd_pcsp *chip)
        chip->pcm->info_flags = SNDRV_PCM_INFO_HALF_DUPLEX;
        strcpy(chip->pcm->name, "pcsp");
 
-       snd_pcm_lib_preallocate_pages_for_all(chip->pcm,
-                                             SNDRV_DMA_TYPE_CONTINUOUS,
-                                             NULL,
-                                             PCSP_BUFFER_SIZE,
-                                             PCSP_BUFFER_SIZE);
+       snd_pcm_set_managed_buffer_all(chip->pcm,
+                                      SNDRV_DMA_TYPE_CONTINUOUS,
+                                      NULL,
+                                      PCSP_BUFFER_SIZE,
+                                      PCSP_BUFFER_SIZE);
 
        return 0;
 }