ASoC: cros_ec_codec: Convert to the common vmalloc memalloc

The recent change (*) in the ALSA memalloc core allows us to drop the
special vmalloc-specific allocation and page handling.  This patch
coverts to the common code.
(*) 1fe7f397cfe2: ALSA: memalloc: Add vmalloc buffer allocation
                  support
    7e8edae39fd1: ALSA: pcm: Handle special page mapping in the
                  default mmap handler

Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20191108094641.20086-8-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/soc/codecs/cros_ec_codec.c b/sound/soc/codecs/cros_ec_codec.c
index dd14caf9091a47c97dcb531fb720563dd8c4623d..7b17f39a6a102f9a1ceadfe6fcf3e39c995b4008 100644 (file)
--- a/sound/soc/codecs/cros_ec_codec.c
+++ b/sound/soc/codecs/cros_ec_codec.c
@@ -918,8 +918,7 @@ static int wov_pcm_hw_params(struct snd_soc_component *component,
        priv->wov_burst_read = true;
        mutex_unlock(&priv->wov_dma_lock);
 
-       return snd_pcm_lib_alloc_vmalloc_buffer(substream,
-                       params_buffer_bytes(hw_params));
+       return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params));
 }
 
 static int wov_pcm_hw_free(struct snd_soc_component *component,
@@ -935,7 +934,7 @@ static int wov_pcm_hw_free(struct snd_soc_component *component,
 
        cancel_delayed_work_sync(&priv->wov_copy_work);
 
-       return snd_pcm_lib_free_vmalloc_buffer(substream);
+       return snd_pcm_lib_free_pages(substream);
 }
 
 static snd_pcm_uframes_t wov_pcm_pointer(struct snd_soc_component *component,
@@ -948,11 +947,12 @@ static snd_pcm_uframes_t wov_pcm_pointer(struct snd_soc_component *component,
        return bytes_to_frames(runtime, priv->wov_dma_offset);
 }
 
-static struct page *wov_pcm_page(struct snd_soc_component *component,
-                                struct snd_pcm_substream *substream,
-                                unsigned long offset)
+static int wov_pcm_new(struct snd_soc_component *component,
+                      struct snd_soc_pcm_runtime *rtd)
 {
-       return snd_pcm_lib_get_vmalloc_page(substream, offset);
+       snd_pcm_lib_preallocate_pages_for_all(rtd->pcm, SNDRV_DMA_TYPE_VMALLOC,
+                                             NULL, 0, 0);
+       return 0;
 }
 
 static const struct snd_soc_component_driver wov_component_driver = {
@@ -964,7 +964,7 @@ static const struct snd_soc_component_driver wov_component_driver = {
        .hw_params      = wov_pcm_hw_params,
        .hw_free        = wov_pcm_hw_free,
        .pointer        = wov_pcm_pointer,
-       .page           = wov_pcm_page,
+       .pcm_construct  = wov_pcm_new,
 };
 
 static int cros_ec_codec_platform_probe(struct platform_device *pdev)