USB: OHCI: turn off RD when remote wakeup is disabled
This patch (as1068b) disables the RD interrupt flag when an OHCI root hub is suspended with remote wakeup disabled. Although the spec clearly states that this flag permits the controller to issue an interrupt when a resume request from downstream is detected and not when a local status change occurs, some controllers mistakenly use it for both types of event. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Este cometimento está contido em:

cometido por
Greg Kroah-Hartman

ascendente
58a97ffeb2
cometimento
5f47493cdf
@@ -106,7 +106,8 @@ __acquires(ohci->lock)
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if (ohci_to_hcd(ohci)->self.root_hub->do_remote_wakeup || autostop) {
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ohci->hc_control |= OHCI_CTRL_RWE;
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} else {
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ohci_writel (ohci, OHCI_INTR_RHSC, &ohci->regs->intrdisable);
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ohci_writel(ohci, OHCI_INTR_RHSC | OHCI_INTR_RD,
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&ohci->regs->intrdisable);
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ohci->hc_control &= ~OHCI_CTRL_RWE;
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}
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