diff options
| -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) | |||
| 230 | pr_debug("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic); | 230 | pr_debug("%s: IIS: CON=%x MOD=%x FIC=%x\n", __func__, con, mod, fic); |
| 231 | } | 231 | } |
| 232 | 232 | ||
| 233 | #define msecs_to_loops(t) (loops_per_jiffy / 1000 * HZ * t) | ||
| 234 | |||
| 233 | /* | 235 | /* |
| 234 | * Wait for the LR signal to allow synchronisation to the L/R clock | 236 | * Wait for the LR signal to allow synchronisation to the L/R clock |
| 235 | * from the codec. May only be needed for slave mode. | 237 | * 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) | |||
| 237 | static int s3c2412_snd_lrsync(struct s3c_i2sv2_info *i2s) | 239 | static int s3c2412_snd_lrsync(struct s3c_i2sv2_info *i2s) |
| 238 | { | 240 | { |
| 239 | u32 iiscon; | 241 | u32 iiscon; |
| 240 | unsigned long timeout = jiffies + msecs_to_jiffies(5); | 242 | unsigned long loops = msecs_to_loops(5); |
| 241 | 243 | ||
| 242 | pr_debug("Entered %s\n", __func__); | 244 | pr_debug("Entered %s\n", __func__); |
| 243 | 245 | ||
| 244 | while (1) { | 246 | while (--loops) { |
| 245 | iiscon = readl(i2s->regs + S3C2412_IISCON); | 247 | iiscon = readl(i2s->regs + S3C2412_IISCON); |
| 246 | if (iiscon & S3C2412_IISCON_LRINDEX) | 248 | if (iiscon & S3C2412_IISCON_LRINDEX) |
| 247 | break; | 249 | break; |
| 248 | 250 | ||
| 249 | if (timeout < jiffies) { | 251 | cpu_relax(); |
| 250 | printk(KERN_ERR "%s: timeout\n", __func__); | 252 | } |
| 251 | return -ETIMEDOUT; | 253 | |
| 252 | } | 254 | if (!loops) { |
| 255 | printk(KERN_ERR "%s: timeout\n", __func__); | ||
| 256 | return -ETIMEDOUT; | ||
| 253 | } | 257 | } |
| 254 | 258 | ||
| 255 | return 0; | 259 | return 0; |
