Many other bits in USBSTS register are "clear-by-writing-1". Let's make
sure that we clear *only* STS_EINT and not any of the other bits as they
might be needed later.
Signed-off-by: Felipe Balbi <felipe.ba...@linux.intel.com>
---
drivers/usb/host/xhci-ring.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index b4ec80d18078..116b4a0dadbb 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -2630,8 +2630,7 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
* so we can receive interrupts from other MSI-X interrupters.
* Write 1 to clear the interrupt status.
*/
- status |= STS_EINT;
- writel(status, &xhci->op_regs->status);
+ writel(STS_EINT, &xhci->op_regs->status);
/* FIXME when MSI-X is supported and there are multiple vectors */
/* Clear the MSI-X event interrupt status */
--
2.10.1
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