[alsa-devel] [PATCH 1/2] soc - Fix s3c24xx-i2s LR sync while timer ticks are disabled

[Takashi Iwai]

At Mon, 14 Apr 2008 12:01:42 +0100,
Mark Brown wrote:
> 
> From: Werner Almesberger <werner at openmoko.org>
> 
> 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 at openmoko.org>
> Signed-off-by: Mark Brown <broonie at opensource.wolfsonmicro.com>

Applied to ALSA tree.  Thanks.


Takashi