From: Takashi Iwai <tiwai@suse.de>
To: alsa-devel@alsa-project.org
Cc: Cezary Rojewski <cezary.rojewski@intel.com>,
Kai Vehmanen <kai.vehmanen@linux.intel.com>,
Peter Ujfalusi <peter.ujfalusi@linux.intel.com>,
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
Ranjani Sridharan <ranjani.sridharan@linux.intel.com>,
Liam Girdwood <liam.r.girdwood@linux.intel.com>,
Bard Liao <yung-chuan.liao@linux.intel.com>
Subject: Buffers used in ASoC Intel Atom SST driver
Date: Thu, 18 Aug 2022 17:42:46 +0200 [thread overview]
Message-ID: <874jy98snd.wl-tiwai@suse.de> (raw)
Hi,
while cleaning up / fixing the memory allocation code, I noticed that
Intel SST driver is the only driver that currently uses the
SNDRV_DMA_TYPE_CONTINUOUS pages for its PCM buffer.
Is there any reason not to use the standard device buffer
(SNDRV_DMA_TYPE_DEV)? i.e. the change like below.
thanks,
Takashi
-- 8< --
From: Takashi Iwai <tiwai@suse.de>
Subject: [PATCH] ASoC: Intel: sst: Switch to standard device pages
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
sound/soc/intel/atom/sst-mfld-platform-pcm.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/sound/soc/intel/atom/sst-mfld-platform-pcm.c b/sound/soc/intel/atom/sst-mfld-platform-pcm.c
index a56dd48c045f..c75616a5fd0a 100644
--- a/sound/soc/intel/atom/sst-mfld-platform-pcm.c
+++ b/sound/soc/intel/atom/sst-mfld-platform-pcm.c
@@ -676,10 +676,9 @@ static int sst_soc_pcm_new(struct snd_soc_component *component,
if (dai->driver->playback.channels_min ||
dai->driver->capture.channels_min) {
- snd_pcm_set_managed_buffer_all(pcm,
- SNDRV_DMA_TYPE_CONTINUOUS,
- snd_dma_continuous_data(GFP_DMA),
- SST_MIN_BUFFER, SST_MAX_BUFFER);
+ snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
+ pcm->card->dev,
+ SST_MIN_BUFFER, SST_MAX_BUFFER);
}
return 0;
}
--
2.35.3
next reply other threads:[~2022-08-18 15:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-18 15:42 Takashi Iwai [this message]
2022-08-18 15:59 ` Buffers used in ASoC Intel Atom SST driver Cezary Rojewski
2022-08-18 16:03 ` Takashi Iwai
2022-08-18 16:11 ` Pierre-Louis Bossart
2022-08-23 11:56 ` Takashi Iwai
2022-09-11 18:08 ` Hans de Goede
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