[PATCH] usb: dwc3: qcom: Honor wakeup enabled/disabled state

[Matthias Kaehlcke]

The dwc3-qcom currently enables wakeup interrupts unconditionally
when suspending, however this should not be done when wakeup is
disabled (e.g. through the sysfs attribute power/wakeup). Only
enable wakeup interrupts when device_may_wakeup() returns true.

Fixes: a4333c3a6ba9 ("usb: dwc3: Add Qualcomm DWC3 glue driver")
Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
---

 drivers/usb/dwc3/dwc3-qcom.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index e1e78e9824b1..56d14c09506d 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -251,8 +251,10 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom)
 	for (i = qcom->num_clocks - 1; i >= 0; i--)
 		clk_disable_unprepare(qcom->clks[i]);
 
+	if (device_may_wakeup(qcom->dev))
+		dwc3_qcom_enable_interrupts(qcom);
+
 	qcom->is_suspended = true;
-	dwc3_qcom_enable_interrupts(qcom);
 
 	return 0;
 }
@@ -265,7 +267,8 @@ static int dwc3_qcom_resume(struct dwc3_qcom *qcom)
 	if (!qcom->is_suspended)
 		return 0;
 
-	dwc3_qcom_disable_interrupts(qcom);
+	if (device_may_wakeup(qcom->dev))
+		dwc3_qcom_disable_interrupts(qcom);
 
 	for (i = 0; i < qcom->num_clocks; i++) {
 		ret = clk_prepare_enable(qcom->clks[i]);
-- 
2.28.0.618.gf4bc123cb7-goog