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usb: dwc3: qcom: Honor wakeup enabled/disabled state

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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: a4333c3a6b ("usb: dwc3: Add Qualcomm DWC3 glue driver")
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210302103659.v2.1.I44954d9e1169f2cf5c44e6454d357c75ddfa99a2@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Matthias Kaehlcke 2021-03-02 10:37:03 -08:00 committed by Greg Kroah-Hartman
parent cc2ac63d4c
commit 2664deb093
1 changed files with 5 additions and 2 deletions
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7
drivers/usb/dwc3/dwc3-qcom.c
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@ -358,8 +358,10 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom)
if (ret)
dev_warn(qcom->dev, "failed to disable interconnect: %d\n", ret);
if (device_may_wakeup(qcom->dev))
dwc3_qcom_enable_interrupts(qcom);
qcom->is_suspended = true;
dwc3_qcom_enable_interrupts(qcom);
return 0;
}
@ -372,7 +374,8 @@ 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]);