ALSA: maestro3: 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/20191209094943.14984-47-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/maestro3.c b/sound/pci/maestro3.c
index cc8594d76c70821de7acf85f2b526f8578ff500a..f4076e2a64004521b1bb3e5566f359657c06f3bb 100644 (file)
--- a/sound/pci/maestro3.c
+++ b/sound/pci/maestro3.c
@@ -1381,10 +1381,7 @@ static int snd_m3_pcm_hw_params(struct snd_pcm_substream *substream,
                                struct snd_pcm_hw_params *hw_params)
 {
        struct m3_dma *s = substream->runtime->private_data;
-       int err;
 
-       if ((err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params))) < 0)
-               return err;
        /* set buffer address */
        s->buffer_addr = substream->runtime->dma_addr;
        if (s->buffer_addr & 0x3) {
@@ -1401,7 +1398,6 @@ static int snd_m3_pcm_hw_free(struct snd_pcm_substream *substream)
        if (substream->runtime->private_data == NULL)
                return 0;
        s = substream->runtime->private_data;
-       snd_pcm_lib_free_pages(substream);
        s->buffer_addr = 0;
        return 0;
 }
@@ -1860,9 +1856,8 @@ snd_m3_pcm(struct snd_m3 * chip, int device)
        strcpy(pcm->name, chip->card->driver);
        chip->pcm = pcm;
        
-       snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-                                             &chip->pci->dev,
-                                             64*1024, 64*1024);
+       snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+                                      &chip->pci->dev, 64*1024, 64*1024);
 
        return 0;
 }