From ac60fe289eef3d81009f2b14a12acbac3e71878b Mon Sep 17 00:00:00 2001
From: Dmitry Antipov <dmitry.anti...@linaro.org>
Date: Wed, 21 Dec 2011 11:05:27 +0400
Subject: [PATCH] ohci-hcd: use usleep_range() instead of mdelay()
---
drivers/usb/host/ohci-hcd.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index b263919..a6d58da 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -574,6 +574,7 @@ static int ohci_run (struct ohci_hcd *ohci)
u32 mask, val;
int first = ohci->fminterval == 0;
struct usb_hcd *hcd = ohci_to_hcd(ohci);
+ unsigned long usecs;
disable (ohci);
@@ -724,7 +725,8 @@ retry:
spin_unlock_irq (&ohci->lock);
// POTPGT delay is bits 24-31, in 2 ms units.
- mdelay ((val >> 23) & 0x1fe);
+ usecs = ((val >> 23) & 0x1fe) * USEC_PER_MSEC;
+ usleep_range(usecs, usecs + 1000);
hcd->state = HC_STATE_RUNNING;
if (quirk_zfmicro(ohci)) {
--
1.7.7.4
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