From 1075b321ab4300e5ee73eeb97980b45bc2ce13b6 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 9 Dec 2019 10:49:37 +0100
Subject: [PATCH] ALSA: caiaq: Use managed buffer allocation
Git-commit: 1075b321ab4300e5ee73eeb97980b45bc2ce13b6
Patch-mainline: v5.6-rc1
References: jsc#SLE-16518
Clean up the driver with the new managed buffer allocation API.
The hw_params callback became superfluous and dropped.
The hw_free callback still remains because of the substream
deactivation sync call.
Link: https://lore.kernel.org/r/20191209094943.14984-66-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/usb/caiaq/audio.c | 13 +++----------
1 file changed, 3 insertions(+), 10 deletions(-)
diff --git a/sound/usb/caiaq/audio.c b/sound/usb/caiaq/audio.c
index 970eb0865ba3..8513b120e57e 100644
--- a/sound/usb/caiaq/audio.c
+++ b/sound/usb/caiaq/audio.c
@@ -167,17 +167,11 @@ static int snd_usb_caiaq_substream_close(struct snd_pcm_substream *substream)
return 0;
}
-static int snd_usb_caiaq_pcm_hw_params(struct snd_pcm_substream *sub,
- struct snd_pcm_hw_params *hw_params)
-{
- return snd_pcm_lib_malloc_pages(sub, params_buffer_bytes(hw_params));
-}
-
static int snd_usb_caiaq_pcm_hw_free(struct snd_pcm_substream *sub)
{
struct snd_usb_caiaqdev *cdev = snd_pcm_substream_chip(sub);
deactivate_substream(cdev, sub);
- return snd_pcm_lib_free_pages(sub);
+ return 0;
}
/* this should probably go upstream */
@@ -328,7 +322,6 @@ static const struct snd_pcm_ops snd_usb_caiaq_ops = {
.open = snd_usb_caiaq_substream_open,
.close = snd_usb_caiaq_substream_close,
.ioctl = snd_pcm_lib_ioctl,
- .hw_params = snd_usb_caiaq_pcm_hw_params,
.hw_free = snd_usb_caiaq_pcm_hw_free,
.prepare = snd_usb_caiaq_pcm_prepare,
.trigger = snd_usb_caiaq_pcm_trigger,
@@ -841,8 +834,8 @@ int snd_usb_caiaq_audio_init(struct snd_usb_caiaqdev *cdev)
&snd_usb_caiaq_ops);
snd_pcm_set_ops(cdev->pcm, SNDRV_PCM_STREAM_CAPTURE,
&snd_usb_caiaq_ops);
- snd_pcm_lib_preallocate_pages_for_all(cdev->pcm, SNDRV_DMA_TYPE_VMALLOC,
- NULL, 0, 0);
+ snd_pcm_set_managed_buffer_all(cdev->pcm, SNDRV_DMA_TYPE_VMALLOC,
+ NULL, 0, 0);
cdev->data_cb_info =
kmalloc_array(N_URBS, sizeof(struct snd_usb_caiaq_cb_info),
--
2.16.4