diff options
Diffstat (limited to 'sound/sparc/cs4231.c')
| -rw-r--r-- | sound/sparc/cs4231.c | 33 |
1 files changed, 14 insertions, 19 deletions
diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c index 4f515a64e03..ab39860e240 100644 --- a/sound/sparc/cs4231.c +++ b/sound/sparc/cs4231.c @@ -422,44 +422,39 @@ static void snd_cs4231_mce_down(struct snd_cs4231 *chip) spin_unlock_irqrestore(&chip->lock, flags); return; } - snd_cs4231_busy_wait(chip); - - /* calibration process */ - snd_cs4231_ready(chip); - snd_cs4231_ready(chip); - timeout = snd_cs4231_in(chip, CS4231_TEST_INIT); - if ((timeout & CS4231_CALIB_IN_PROGRESS) == 0) { - snd_printd("cs4231_mce_down - auto calibration time out (1)\n"); - spin_unlock_irqrestore(&chip->lock, flags); - return; - } + /* + * Wait for (possible -- during init auto-calibration may not be set) + * calibration process to start. Needs upto 5 sample periods on AD1848 + * which at the slowest possible rate of 5.5125 kHz means 907 us. + */ + msleep(1); - /* in 10ms increments, check condition, up to 250ms */ - timeout = 25; + /* check condition up to 250ms */ + timeout = msecs_to_jiffies(250); while (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) { spin_unlock_irqrestore(&chip->lock, flags); - if (--timeout < 0) { + if (timeout <= 0) { snd_printk("mce_down - " "auto calibration time out (2)\n"); return; } - msleep(10); + timeout = schedule_timeout(timeout); spin_lock_irqsave(&chip->lock, flags); } - /* in 10ms increments, check condition, up to 100ms */ - timeout = 10; + /* check condition up to 100ms */ + timeout = msecs_to_jiffies(100); while (__cs4231_readb(chip, CS4231U(chip, REGSEL)) & CS4231_INIT) { spin_unlock_irqrestore(&chip->lock, flags); - if (--timeout < 0) { + if (timeout <= 0) { snd_printk("mce_down - " "auto calibration time out (3)\n"); return; } - msleep(10); + timeout = schedule_timeout(timeout); spin_lock_irqsave(&chip->lock, flags); } spin_unlock_irqrestore(&chip->lock, flags); |