From: Matthias Kaehlcke <mka@chromium.org>
To: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Andy Gross <agross@kernel.org>, Felipe Balbi <balbi@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Douglas Anderson <dianders@chromium.org>,
Manu Gautam <mgautam@codeaurora.org>,
linux-usb@vger.kernel.org, linux-arm-msm@vger.kernel.org,
Lee Jones <lee.jones@linaro.org>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] usb: dwc3: qcom: Honor wakeup enabled/disabled state
Date: Tue, 23 Feb 2021 09:22:02 -0800 [thread overview]
Message-ID: <YDU5ujJy5xiDXAJ3@google.com> (raw)
In-Reply-To: <20200915235032.GB1893@yoga>
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
> >
next prev parent reply other threads:[~2021-02-23 17:23 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-15 19:31 [PATCH] usb: dwc3: qcom: Honor wakeup enabled/disabled state Matthias Kaehlcke
2020-09-15 23:50 ` Bjorn Andersson
2021-02-23 17:22 ` Matthias Kaehlcke [this message]
2021-03-02 7:06 ` Greg Kroah-Hartman
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