[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>
diff --git a/sound/isa/cs423x/cs4231_lib.c b/sound/isa/cs423x/cs4231_lib.c
index c0ffb20..e73554f 100644
--- a/sound/isa/cs423x/cs4231_lib.c
+++ b/sound/isa/cs423x/cs4231_lib.c
@@ -343,26 +343,29 @@
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);