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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-17 13:21:52 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-17 13:21:52 -0700 |
| commit | b938fb6f491113880ebaabfa06c6446723c702fd (patch) | |
| tree | d19c6487b64b4002b31446160f2670394ab4ef1b /sound/soc/s3c24xx | |
| parent | de55a8958f6e3ef5ce5f0971b80bd44bfcac7cf1 (diff) | |
| parent | 87bfa1dbfb22aab2bb6c1085c1fe7d56cdd2f044 (diff) | |
| download | linux-b938fb6f491113880ebaabfa06c6446723c702fd.tar.gz linux-b938fb6f491113880ebaabfa06c6446723c702fd.tar.bz2 linux-b938fb6f491113880ebaabfa06c6446723c702fd.zip | |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Fix MSI GX620 mixer
ASoC: remove unused #include <linux/version.h>
ASoC: S3C lrsync function made to work with IRQs disabled.
ALSA: hda - Fix Dell S14 pin setup
ALSA: hda - Fix IDT92HD83* codec setup
ASoC: Fix display of stream name in DAPM debugfs
ALSA: hda - Add support for HP dv6
ALSA: hda - Fix HP/line-out initialization with IDT/STAC codecs
ALSA: hda - Set default GPIO for IDT92HD71bxx
ALSA: hda - Set default GPIO for STAC/IDT codecs
ASoC: Clean up error handling in MPC5200 DMA setup
ALSA: hda - Add missing model=auto entry for ALC269
Diffstat (limited to 'sound/soc/s3c24xx')
| -rw-r--r-- | sound/soc/s3c24xx/s3c-i2s-v2.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/sound/soc/s3c24xx/s3c-i2s-v2.c b/sound/soc/s3c24xx/s3c-i2s-v2.c index aa7af0b8d421..9bc4aa35caab 100644 --- a/sound/soc/s3c24xx/s3c-i2s-v2.c +++ b/sound/soc/s3c24xx/s3c-i2s-v2.c @@ -230,6 +230,8 @@ static void s3c2412_snd_rxctrl(struct s3c_i2sv2_info *i2s, int on) pr_debug("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic); } +#define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t) + /* * Wait for the LR signal to allow synchronisation to the L/R clock * from the codec. May only be needed for slave mode. @@ -237,19 +239,21 @@ static void s3c2412_snd_rxctrl(struct s3c_i2sv2_info *i2s, int on) static int s3c2412_snd_lrsync(struct s3c_i2sv2_info *i2s) { u32 iiscon; - unsigned long timeout = jiffies + msecs_to_jiffies(5); + unsigned long loops = msecs_to_loops(5); pr_debug("Entered %s\n", __func__); - while (1) { + while (--loops) { iiscon = readl(i2s->regs + S3C2412_IISCON); if (iiscon & S3C2412_IISCON_LRINDEX) break; - if (timeout < jiffies) { - printk(KERN_ERR "%s: timeout\n", __func__); - return -ETIMEDOUT; - } + cpu_relax(); + } + + if (!loops) { + printk(KERN_ERR "%s: timeout\n", __func__); + return -ETIMEDOUT; } return 0; |