[ALSA] soc - Fix s3c24xx-i2s LR sync while timer ticks are disabled

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When timer ticks are disabled when calling
sound/soc/s3c24xx/s3c24xx-i2s.c:s3c24xx_snd_lrsync
and the LR signal never happens, we loop forever.
This has been observed in the following call chain:
snd_pcm_common_ioctl1 -> snd_pcm_action_lock_irq ->
snd_pcm_action_single
 -> snd_pcm_do_resume -> soc_pcm_trigger -> s3c24xx_i2s_trigger

The patch below changes the timeout mechanism to use udelay, which
doesn't need timer ticks.

Signed-off-by: Werner Almesberger <werner@openmoko.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

...

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Werner Almesberger 2008-04-14 14:26:44 +02:00 • committed by Jaroslav Kysela

parent a65f0568f6

commit 33e5b22285

1 changed files with 3 additions and 2 deletions

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sound/soc/s3c24xx/s3c24xx-i2s.c

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