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ANDROID: scsi: ufs: Reduce the clock scaling latency

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Wait at most 20 ms before rechecking the doorbells instead of waiting
for a potentially long time between doorbell checks.

Bug: 227177294
Change-Id: I8a4dd0e93ca02435264961851a095a9c83c68240
Signed-off-by: Bart Van Assche <bvanassche@google.com>
This commit is contained in:
Bart Van Assche
2022-03-29 15:55:44 -07:00
committed by Todd Kjos
parent 00ed95fe93
commit aca52cabdb
1 changed files with 1 additions and 1 deletions
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2
drivers/scsi/ufs/ufshcd.c
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@@ -1144,7 +1144,7 @@ static int ufshcd_wait_for_doorbell_clr(struct ufs_hba *hba,
} }
spin_unlock_irqrestore(hba->host->host_lock, flags); spin_unlock_irqrestore(hba->host->host_lock, flags);
schedule(); io_schedule_timeout(msecs_to_jiffies(20));
if (ktime_to_us(ktime_sub(ktime_get(), start)) > if (ktime_to_us(ktime_sub(ktime_get(), start)) >
wait_timeout_us) { wait_timeout_us) {
timeout = true; timeout = true;