ASoC: siu_pcm: Use managed buffer allocation

Clean up the driver with the new managed buffer allocation API.
The hw_params and hw_free callbacks became superfluous (the rest were
only debug prints) and got dropped.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20191210142614.19405-10-tiwai@suse.deSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sh/siu_pcm.c

@@ -281,41 +281,6 @@ static int siu_pcm_stmread_stop(struct siu_port *port_info)
 	return 0;
 }
 
-static int siu_pcm_hw_params(struct snd_soc_component *component,
-			     struct snd_pcm_substream *ss,
-			     struct snd_pcm_hw_params *hw_params)
-{
-	struct siu_info *info = siu_i2s_data;
-	struct device *dev = ss->pcm->card->dev;
-	int ret;
-
-	dev_dbg(dev, "%s: port=%d\n", __func__, info->port_id);
-
-	ret = snd_pcm_lib_malloc_pages(ss, params_buffer_bytes(hw_params));
-	if (ret < 0)
-		dev_err(dev, "snd_pcm_lib_malloc_pages() failed\n");
-
-	return ret;
-}
-
-static int siu_pcm_hw_free(struct snd_soc_component *component,
-			   struct snd_pcm_substream *ss)
-{
-	struct siu_info *info = siu_i2s_data;
-	struct siu_port	*port_info = siu_port_info(ss);
-	struct device *dev = ss->pcm->card->dev;
-	struct siu_stream *siu_stream;
-
-	if (ss->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		siu_stream = &port_info->playback;
-	else
-		siu_stream = &port_info->capture;
-
-	dev_dbg(dev, "%s: port=%d\n", __func__, info->port_id);
-
-	return snd_pcm_lib_free_pages(ss);
-}
-
 static bool filter(struct dma_chan *chan, void *slave)
 {
 	struct sh_dmae_slave *param = slave;
@@ -548,7 +513,7 @@ static int siu_pcm_new(struct snd_soc_component *component,
 		if (ret < 0)
 			return ret;
 
-		snd_pcm_lib_preallocate_pages_for_all(pcm,
+		snd_pcm_set_managed_buffer_all(pcm,
 				SNDRV_DMA_TYPE_DEV, card->dev,
 				SIU_BUFFER_BYTES_MAX, SIU_BUFFER_BYTES_MAX);
 
@@ -584,8 +549,6 @@ struct const snd_soc_component_driver siu_component = {
 	.open		= siu_pcm_open,
 	.close		= siu_pcm_close,
 	.ioctl		= snd_soc_pcm_lib_ioctl,
-	.hw_params	= siu_pcm_hw_params,
-	.hw_free	= siu_pcm_hw_free,
 	.prepare	= siu_pcm_prepare,
 	.trigger	= siu_pcm_trigger,
 	.pointer	= siu_pcm_pointer_dma,