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usb: ohci-at91: Fix the unhandle interrupt when resume
The ohci_hcd_at91_drv_suspend() sets ohci->rh_state to OHCI_RH_HALTED when suspend which will let the ohci_irq() skip the interrupt after resume. And nobody to handle this interrupt. According to the comment in ohci_hcd_at91_drv_suspend(), it need to reset when resume from suspend(MEM) to fix by setting "hibernated" argument of ohci_resume(). Signed-off-by: Guiting Shen <aarongt.shen@gmail.com> Cc: stable <stable@kernel.org> Reviewed-by: Alan Stern <stern@rowland.harvard.edu> Link: https://lore.kernel.org/r/20230626152713.18950-1-aarongt.shen@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -672,7 +672,13 @@ ohci_hcd_at91_drv_resume(struct device *dev)
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else
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at91_start_clock(ohci_at91);
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ohci_resume(hcd, false);
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/*
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* According to the comment in ohci_hcd_at91_drv_suspend()
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* we need to do a reset if the 48Mhz clock was stopped,
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* that is, if ohci_at91->wakeup is clear. Tell ohci_resume()
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* to reset in this case by setting its "hibernated" flag.
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*/
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ohci_resume(hcd, !ohci_at91->wakeup);
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return 0;
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}
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