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

I noticed this was never picked up, can it be landed or are there any
concerns with this patch?

On Tue, Sep 15, 2020 at 06:50:32PM -0500, Bjorn Andersson wrote:
> On Tue 15 Sep 14:31 CDT 2020, Matthias Kaehlcke wrote:
>
> > 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@chromium.org>
>
> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
>
> Regards,
> Bjorn
>
> > ---
> >
> > 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
> >

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