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USB: EHCI: use hrtimer for the IAA watchdog

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This patch (as1581) replaces the iaa_watchdog kernel timer used by
ehci-hcd with an hrtimer event, in keeping with the general conversion
to high-res timers.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alan Stern
2012-07-11 11:22:44 -04:00
committed by Greg Kroah-Hartman
parent 8c5bf7be56
commit 9d9387475a
5 changed files with 61 additions and 71 deletions
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4
drivers/usb/host/ehci-q.c
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@@ -1173,8 +1173,6 @@ static void end_unlink_async (struct ehci_hcd *ehci)
struct ehci_qh *qh = ehci->async_unlink;
struct ehci_qh *next;
iaa_watchdog_done(ehci);
// qh->hw_next = cpu_to_hc32(qh->qh_dma);
qh->qh_state = QH_STATE_IDLE;
qh->qh_next.qh = NULL;
@@ -1243,7 +1241,7 @@ static void start_unlink_async (struct ehci_hcd *ehci, struct ehci_qh *qh)
ehci_writel(ehci, ehci->command | CMD_IAAD, &ehci->regs->command);
(void)ehci_readl(ehci, &ehci->regs->command);
iaa_watchdog_start(ehci);
ehci_enable_event(ehci, EHCI_HRTIMER_IAA_WATCHDOG, true);
}
/*-------------------------------------------------------------------------*/