From: Dmitry Antipov <dmitry.antipov@linaro.org>
To: linaro-dev@lists.linaro.org
Cc: patches@linaro.org, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] ohci-hcd: ohci-hcd: use usleep_range() instead of mdelay()
Date: Wed, 21 Dec 2011 11:07:22 +0400 [thread overview]
Message-ID: <4EF185AA.2000006@linaro.org> (raw)
From ac60fe289eef3d81009f2b14a12acbac3e71878b Mon Sep 17 00:00:00 2001
From: Dmitry Antipov <dmitry.antipov@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
next reply other threads:[~2011-12-21 7:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-21 7:07 Dmitry Antipov [this message]
2011-12-21 21:12 ` Greg KH
2011-12-22 3:05 ` Alan Stern
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4EF185AA.2000006@linaro.org \
--to=dmitry.antipov@linaro.org \
--cc=linaro-dev@lists.linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=patches@linaro.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome