ALSA: hiface: Use managed buffer allocation

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

Link: https://lore.kernel.org/r/20191209094943.14984-67-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/usb/hiface/pcm.c b/sound/usb/hiface/pcm.c
index e0de719172741b6aa05bad3275531ced858a2860..cc0639a1b419207cd2d79d322859b3554b70400d 100644 (file)
--- a/sound/usb/hiface/pcm.c
+++ b/sound/usb/hiface/pcm.c
@@ -415,18 +415,6 @@ static int hiface_pcm_close(struct snd_pcm_substream *alsa_sub)
        return 0;
 }
 
-static int hiface_pcm_hw_params(struct snd_pcm_substream *alsa_sub,
-                               struct snd_pcm_hw_params *hw_params)
-{
-       return snd_pcm_lib_malloc_pages(alsa_sub,
-                                       params_buffer_bytes(hw_params));
-}
-
-static int hiface_pcm_hw_free(struct snd_pcm_substream *alsa_sub)
-{
-       return snd_pcm_lib_free_pages(alsa_sub);
-}
-
 static int hiface_pcm_prepare(struct snd_pcm_substream *alsa_sub)
 {
        struct pcm_runtime *rt = snd_pcm_substream_chip(alsa_sub);
@@ -513,8 +501,6 @@ static const struct snd_pcm_ops pcm_ops = {
        .open = hiface_pcm_open,
        .close = hiface_pcm_close,
        .ioctl = snd_pcm_lib_ioctl,
-       .hw_params = hiface_pcm_hw_params,
-       .hw_free = hiface_pcm_hw_free,
        .prepare = hiface_pcm_prepare,
        .trigger = hiface_pcm_trigger,
        .pointer = hiface_pcm_pointer,
@@ -613,8 +599,8 @@ int hiface_pcm_init(struct hiface_chip *chip, u8 extra_freq)
 
        strlcpy(pcm->name, "USB-SPDIF Audio", sizeof(pcm->name));
        snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &pcm_ops);
-       snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
-                                             NULL, 0, 0);
+       snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_VMALLOC,
+                                      NULL, 0, 0);
 
        rt->instance = pcm;