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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


             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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