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| author |   Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2021-05-18 10:25:10 +0900 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2021-05-18 08:57:21 +0200 |
| commit | 9f079c1bdc9087842dc5ac9d81b1d7f2578e81ce (patch) | |
| tree | 4e151800097d1292bf095fc82e479a6160428059 /sound/firewire/dice/dice-stream.c | |
| parent | ALSA: intel8x0: Don't update period unless prepared (diff) | |
| download | linux-dev-9f079c1bdc9087842dc5ac9d81b1d7f2578e81ce.tar.xz linux-dev-9f079c1bdc9087842dc5ac9d81b1d7f2578e81ce.zip | |
ALSA: dice: disable double_pcm_frames mode for M-Audio Profire 610, 2626 and Avid M-Box 3 Pro
ALSA dice driver detects jumbo payload at high sampling transfer frequency
for below models:
* Avid M-Box 3 Pro
* M-Audio Profire 610
* M-Audio Profire 2626
Although many DICE-based devices have a quirk at high sampling transfer
frequency to multiplex double number of PCM frames into data block than
the number in IEC 61883-1/6, the above devices are just compliant to
IEC 61883-1/6.
This commit disables the mode of double_pcm_frames for the models.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20210518012510.37126-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/dice/dice-stream.c')
| -rw-r--r-- | sound/firewire/dice/dice-stream.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sound/firewire/dice/dice-stream.c b/sound/firewire/dice/dice-stream.c index 1a14c083e8ce..c4dfe76500c2 100644 --- a/sound/firewire/dice/dice-stream.c +++ b/sound/firewire/dice/dice-stream.c @@ -181,7 +181,7 @@ static int keep_resources(struct snd_dice *dice, struct amdtp_stream *stream, // as 'Dual Wire'. // For this quirk, blocking mode is required and PCM buffer size should // be aligned to SYT_INTERVAL. - double_pcm_frames = rate > 96000; + double_pcm_frames = (rate > 96000 && !dice->disable_double_pcm_frames); if (double_pcm_frames) { rate /= 2; pcm_chs *= 2; |