[PATCH] USB: OHCI irq tweak
Evidently there are some boards which care a lot about this, but
as a rule it's been hard to notice.
OHCI_INTR_RD wasn't always cleared in the ohci irq handler. On some
systems this means certain remote wakeup scenarios could seem to hang
(in an interrupt storm, RD never clearing).
From: "William Morrow" <[EMAIL PROTECTED]>
Signed-off-by: Jordan Crouse <[EMAIL PROTECTED]>
Signed-off-by: David Brownell <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
commit e0fd3cbc50a8c925e8e7d8448df689015362c458
tree d77344b86ff3aa6bc72879677077e00347a0a8fc
parent 4809ecc29935893d954ab9244899777ffaca40ac
author David Brownell <[EMAIL PROTECTED]> Wed, 31 Aug 2005 10:47:20 -0700
committer Greg Kroah-Hartman <[EMAIL PROTECTED]> Mon, 12 Sep 2005 12:23:45 -0700
drivers/usb/host/ohci-hcd.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -719,6 +719,7 @@ static irqreturn_t ohci_irq (struct usb_
if (ints & OHCI_INTR_RD) {
ohci_vdbg (ohci, "resume detect\n");
+ ohci_writel (ohci, OHCI_INTR_RD, ®s->intrstatus);
if (hcd->state != HC_STATE_QUIESCING)
schedule_work(&ohci->rh_resume);
}
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