| From | Peter Senna Tschudin <> | Subject | [PATCH 6/9] usb/host/fotg210: replace msleep by usleep_range | Date | Mon, 12 Oct 2015 23:22:37 +0200 |
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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> --- drivers/usb/host/fotg210-hcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c index ae3806d..5413358 100644 --- a/drivers/usb/host/fotg210-hcd.c +++ b/drivers/usb/host/fotg210-hcd.c @@ -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(); -- 2.1.0
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