ALSA: lx6464es: 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/20191209094943.14984-46-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/lx6464es/lx6464es.c b/sound/pci/lx6464es/lx6464es.c
index d0f63fa..a74d8ea 100644 (file)
--- a/sound/pci/lx6464es/lx6464es.c
+++ b/sound/pci/lx6464es/lx6464es.c
@@ -342,23 +342,18 @@ static int lx_pcm_hw_params(struct snd_pcm_substream *substream,
                            struct snd_pcm_hw_params *hw_params, int is_capture)
 {
        struct lx6464es *chip = snd_pcm_substream_chip(substream);
-       int err = 0;
 
        dev_dbg(chip->card->dev, "->lx_pcm_hw_params\n");
 
        mutex_lock(&chip->setup_mutex);
 
-       /* set dma buffer */
-       err = snd_pcm_lib_malloc_pages(substream,
-                                      params_buffer_bytes(hw_params));
-
        if (is_capture)
                chip->capture_stream.stream = substream;
        else
                chip->playback_stream.stream = substream;
 
        mutex_unlock(&chip->setup_mutex);
-       return err;
+       return 0;
 }
 
 static int lx_pcm_hw_params_playback(struct snd_pcm_substream *substream,
@@ -400,8 +395,6 @@ static int lx_pcm_hw_free(struct snd_pcm_substream *substream)
                chip->hardware_running[is_capture] = 0;
        }
 
-       err = snd_pcm_lib_free_pages(substream);
-
        if (is_capture)
                chip->capture_stream.stream = NULL;
        else
@@ -845,9 +838,8 @@ static int lx_pcm_create(struct lx6464es *chip)
        pcm->nonatomic = true;
        strcpy(pcm->name, card_name);
 
-       snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
-                                             &chip->pci->dev,
-                                             size, size);
+       snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+                                      &chip->pci->dev, size, size);
 
        chip->pcm = pcm;
        chip->capture_stream.is_capture = 1;