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USB: isp1760-hcd: move imask clear after pending work is done
This patch moves the HcInterrupt register write to clear the pending interrupt to after the isr work is done, doing this removes glitches in the irq line. Signed-off-by: Richard Retanubun <richardretanubun@ruggedcom.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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1 changed files with 3 additions and 1 deletions
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@ -1676,13 +1676,15 @@ static irqreturn_t isp1760_irq(struct usb_hcd *hcd)
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if (unlikely(!imask))
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goto leave;
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reg_write32(hcd->regs, HC_INTERRUPT_REG, imask);
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if (imask & (HC_ATL_INT | HC_SOT_INT))
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do_atl_int(hcd);
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if (imask & HC_INTL_INT)
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do_intl_int(hcd);
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/* Clear interrupt mask on device after the work is done */
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reg_write32(hcd->regs, HC_INTERRUPT_REG, imask);
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irqret = IRQ_HANDLED;
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leave:
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spin_unlock(&priv->lock);
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