| Message ID | 20230325165217.31069-5-manivannan.sadhasivam@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | usb: dwc3: qcom: Allow runtime PM | expand |
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index bbf67f705d0d..f1059dfcb0e8 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -346,6 +346,8 @@ static void dwc3_qcom_enable_wakeup_irq(int irq, unsigned int polarity) if (!irq) return; + irq_set_irqchip_state(irq, IRQCHIP_STATE_PENDING, 0); + if (polarity) irq_set_irq_type(irq, polarity);
It is possible that there may be a pending interrupt logged into the dwc IP while the interrupts were disabled in the driver. And when the wakeup interrupt is enabled, the pending interrupt might fire which is not required to be serviced by the driver. So always clear the pending interrupt before enabling wake interrupt. Cc: stable@vger.kernel.org # 5.20 Fixes: 360e8230516d ("usb: dwc3: qcom: Add helper functions to enable,disable wake irqs") Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> --- drivers/usb/dwc3/dwc3-qcom.c | 2 ++ 1 file changed, 2 insertions(+)