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Diffstat (limited to 'sound/sparc/cs4231.c')
-rw-r--r--sound/sparc/cs4231.c33
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);