* [PATCH] ohci-hcd: ohci-hcd: use usleep_range() instead of mdelay()
@ 2011-12-21 7:07 Dmitry Antipov
2011-12-21 21:12 ` Greg KH
2011-12-22 3:05 ` Alan Stern
0 siblings, 2 replies; 3+ messages in thread
From: Dmitry Antipov @ 2011-12-21 7:07 UTC (permalink / raw)
To: linaro-dev; +Cc: patches, linux-usb, linux-kernel
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
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] ohci-hcd: ohci-hcd: use usleep_range() instead of mdelay()
2011-12-21 7:07 [PATCH] ohci-hcd: ohci-hcd: use usleep_range() instead of mdelay() Dmitry Antipov
@ 2011-12-21 21:12 ` Greg KH
2011-12-22 3:05 ` Alan Stern
1 sibling, 0 replies; 3+ messages in thread
From: Greg KH @ 2011-12-21 21:12 UTC (permalink / raw)
To: Dmitry Antipov; +Cc: linaro-dev, patches, linux-usb, linux-kernel
On Wed, Dec 21, 2011 at 11:07:22AM +0400, Dmitry Antipov wrote:
> 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()
>
You didn't sign off on this, and you failed to explain why this is
needed.
You also didn't use git-send-email, making it a pain to apply (why do I
need the duplicate headers in the email body?
So consider this patch totally ignored.
greg k-h
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] ohci-hcd: ohci-hcd: use usleep_range() instead of mdelay()
2011-12-21 7:07 [PATCH] ohci-hcd: ohci-hcd: use usleep_range() instead of mdelay() Dmitry Antipov
2011-12-21 21:12 ` Greg KH
@ 2011-12-22 3:05 ` Alan Stern
1 sibling, 0 replies; 3+ messages in thread
From: Alan Stern @ 2011-12-22 3:05 UTC (permalink / raw)
To: Dmitry Antipov; +Cc: linaro-dev, patches, linux-usb, linux-kernel
On Wed, 21 Dec 2011, Dmitry Antipov wrote:
> 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)) {
Why not simply use msleep()?
Alan Stern
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2011-12-22 3:05 UTC | newest]
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2011-12-21 7:07 [PATCH] ohci-hcd: ohci-hcd: use usleep_range() instead of mdelay() Dmitry Antipov
2011-12-21 21:12 ` Greg KH
2011-12-22 3:05 ` Alan Stern
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