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[ALSA] cs4231-lib: improved waiting after mce_down 

This patch replaces long msleeps in waiting loops
with schedule_timeout() calls.

Signed-off-by: Krzysztof Helt <krzysztof.h1 at wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Krzysztof Helt 2007-09-11 00:40:42 +02:00 committed by Jaroslav Kysela
parent 503fc85a3b
commit 23d4635ed3
1 changed files with 13 additions and 10 deletions
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23
sound/isa/cs423x/cs4231_lib.c
View File

@ -343,26 +343,29 @@ void snd_cs4231_mce_down(struct snd_cs4231 *chip)
snd_printdd("(1) jiffies = %lu\n", jiffies);
/* in 10 ms increments, check condition, up to 250 ms */
timeout = 25;
while (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) {
if (--timeout < 0) {
snd_printk("mce_down - auto calibration time out (2)\n");
/* check condition up to 250 ms */
timeout = msecs_to_jiffies(250);
while (snd_cs4231_in(chip, CS4231_TEST_INIT) &
CS4231_CALIB_IN_PROGRESS) {
if (timeout <= 0) {
snd_printk(KERN_ERR "mce_down - "
"auto calibration time out (2)\n");
return;
}
msleep(10);
timeout = schedule_timeout(timeout);
}
snd_printdd("(2) jiffies = %lu\n", jiffies);
/* in 10 ms increments, check condition, up to 100 ms */
timeout = 10;
/* check condition up to 100 ms */
timeout = msecs_to_jiffies(100);
while (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) {
if (--timeout < 0) {
if (timeout <= 0) {
snd_printk(KERN_ERR "mce_down - auto calibration time out (3)\n");
return;
}
msleep(10);
timeout = schedule_timeout(timeout);
}
snd_printdd("(3) jiffies = %lu\n", jiffies);