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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>
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1 changed files with 13 additions and 10 deletions
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@ -343,26 +343,29 @@ void snd_cs4231_mce_down(struct snd_cs4231 *chip)
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snd_printdd("(1) jiffies = %lu\n", jiffies);
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/* in 10 ms increments, check condition, up to 250 ms */
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timeout = 25;
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while (snd_cs4231_in(chip, CS4231_TEST_INIT) & CS4231_CALIB_IN_PROGRESS) {
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if (--timeout < 0) {
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snd_printk("mce_down - auto calibration time out (2)\n");
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/* check condition up to 250 ms */
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timeout = msecs_to_jiffies(250);
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while (snd_cs4231_in(chip, CS4231_TEST_INIT) &
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CS4231_CALIB_IN_PROGRESS) {
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if (timeout <= 0) {
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snd_printk(KERN_ERR "mce_down - "
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"auto calibration time out (2)\n");
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return;
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}
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msleep(10);
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timeout = schedule_timeout(timeout);
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}
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snd_printdd("(2) jiffies = %lu\n", jiffies);
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/* in 10 ms increments, check condition, up to 100 ms */
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timeout = 10;
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/* check condition up to 100 ms */
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timeout = msecs_to_jiffies(100);
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while (cs4231_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) {
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if (--timeout < 0) {
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if (timeout <= 0) {
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snd_printk(KERN_ERR "mce_down - auto calibration time out (3)\n");
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return;
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}
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msleep(10);
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timeout = schedule_timeout(timeout);
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}
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snd_printdd("(3) jiffies = %lu\n", jiffies);
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