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usb/host/fotg210: replace msleep by usleep_range 

msleep under 20ms can result in sleeping up to 20ms, which may not be
intended. Replace msleep(5) by usleep_range(5000, 10000). The range of 5
ms is to reduce the chances of creating an interrupt while reducing the
maximum wait time in 50%.

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peter Senna Tschudin 2015-10-12 23:22:37 +02:00 committed by Greg Kroah-Hartman
parent 0d88002e27
commit 05ebc36e48
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/host/fotg210-hcd.c
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@ -5085,7 +5085,7 @@ static int fotg210_run(struct usb_hcd *hcd)
fotg210->rh_state = FOTG210_RH_RUNNING;
/* unblock posted writes */
fotg210_readl(fotg210, &fotg210->regs->command);
msleep(5);
usleep_range(5000, 10000);
up_write(&ehci_cf_port_reset_rwsem);
fotg210->last_periodic_enable = ktime_get_real();