| Message ID | 20220804151001.23612-6-johan+linaro@kernel.org (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | usb: dwc3: qcom: fix wakeup implementation | expand |
On Thu, Aug 04, 2022 at 05:09:57PM +0200, Johan Hovold wrote: > A device must enable wakeups during runtime suspend regardless of > whether it is capable and allowed to wake the system up from system > suspend. > > Fixes: 2664deb09306 ("usb: dwc3: qcom: Honor wakeup enabled/disabled state") > Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Tested-by: Matthias Kaehlcke <mka@chromium.org>
On Thu, Aug 04, 2022 at 05:09:57PM +0200, Johan Hovold wrote: > A device must enable wakeups during runtime suspend regardless of > whether it is capable and allowed to wake the system up from system > suspend. > > Fixes: 2664deb09306 ("usb: dwc3: qcom: Honor wakeup enabled/disabled state") > Signed-off-by: Johan Hovold <johan+linaro@kernel.org> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Thanks, Mani > --- > drivers/usb/dwc3/dwc3-qcom.c | 19 +++++++++++-------- > 1 file changed, 11 insertions(+), 8 deletions(-) > > diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c > index 6884026b9fad..05b4666fde14 100644 > --- a/drivers/usb/dwc3/dwc3-qcom.c > +++ b/drivers/usb/dwc3/dwc3-qcom.c > @@ -397,7 +397,7 @@ static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom) > dwc3_qcom_enable_wakeup_irq(qcom->ss_phy_irq, 0); > } > > -static int dwc3_qcom_suspend(struct dwc3_qcom *qcom) > +static int dwc3_qcom_suspend(struct dwc3_qcom *qcom, bool wakeup) > { > u32 val; > int i, ret; > @@ -416,7 +416,7 @@ 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)) { > + if (wakeup) { > qcom->usb2_speed = dwc3_qcom_read_usb2_speed(qcom); > dwc3_qcom_enable_interrupts(qcom); > } > @@ -426,7 +426,7 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom) > return 0; > } > > -static int dwc3_qcom_resume(struct dwc3_qcom *qcom) > +static int dwc3_qcom_resume(struct dwc3_qcom *qcom, bool wakeup) > { > int ret; > int i; > @@ -434,7 +434,7 @@ static int dwc3_qcom_resume(struct dwc3_qcom *qcom) > if (!qcom->is_suspended) > return 0; > > - if (device_may_wakeup(qcom->dev)) > + if (wakeup) > dwc3_qcom_disable_interrupts(qcom); > > for (i = 0; i < qcom->num_clocks; i++) { > @@ -945,9 +945,11 @@ static int dwc3_qcom_remove(struct platform_device *pdev) > static int __maybe_unused dwc3_qcom_pm_suspend(struct device *dev) > { > struct dwc3_qcom *qcom = dev_get_drvdata(dev); > + bool wakeup = device_may_wakeup(dev); > int ret = 0; > > - ret = dwc3_qcom_suspend(qcom); > + > + ret = dwc3_qcom_suspend(qcom, wakeup); > if (!ret) > qcom->pm_suspended = true; > > @@ -957,9 +959,10 @@ static int __maybe_unused dwc3_qcom_pm_suspend(struct device *dev) > static int __maybe_unused dwc3_qcom_pm_resume(struct device *dev) > { > struct dwc3_qcom *qcom = dev_get_drvdata(dev); > + bool wakeup = device_may_wakeup(dev); > int ret; > > - ret = dwc3_qcom_resume(qcom); > + ret = dwc3_qcom_resume(qcom, wakeup); > if (!ret) > qcom->pm_suspended = false; > > @@ -970,14 +973,14 @@ static int __maybe_unused dwc3_qcom_runtime_suspend(struct device *dev) > { > struct dwc3_qcom *qcom = dev_get_drvdata(dev); > > - return dwc3_qcom_suspend(qcom); > + return dwc3_qcom_suspend(qcom, true); > } > > static int __maybe_unused dwc3_qcom_runtime_resume(struct device *dev) > { > struct dwc3_qcom *qcom = dev_get_drvdata(dev); > > - return dwc3_qcom_resume(qcom); > + return dwc3_qcom_resume(qcom, true); > } > > static const struct dev_pm_ops dwc3_qcom_dev_pm_ops = { > -- > 2.35.1 >
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 6884026b9fad..05b4666fde14 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -397,7 +397,7 @@ static void dwc3_qcom_enable_interrupts(struct dwc3_qcom *qcom) dwc3_qcom_enable_wakeup_irq(qcom->ss_phy_irq, 0); } -static int dwc3_qcom_suspend(struct dwc3_qcom *qcom) +static int dwc3_qcom_suspend(struct dwc3_qcom *qcom, bool wakeup) { u32 val; int i, ret; @@ -416,7 +416,7 @@ 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)) { + if (wakeup) { qcom->usb2_speed = dwc3_qcom_read_usb2_speed(qcom); dwc3_qcom_enable_interrupts(qcom); } @@ -426,7 +426,7 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom) return 0; } -static int dwc3_qcom_resume(struct dwc3_qcom *qcom) +static int dwc3_qcom_resume(struct dwc3_qcom *qcom, bool wakeup) { int ret; int i; @@ -434,7 +434,7 @@ static int dwc3_qcom_resume(struct dwc3_qcom *qcom) if (!qcom->is_suspended) return 0; - if (device_may_wakeup(qcom->dev)) + if (wakeup) dwc3_qcom_disable_interrupts(qcom); for (i = 0; i < qcom->num_clocks; i++) { @@ -945,9 +945,11 @@ static int dwc3_qcom_remove(struct platform_device *pdev) static int __maybe_unused dwc3_qcom_pm_suspend(struct device *dev) { struct dwc3_qcom *qcom = dev_get_drvdata(dev); + bool wakeup = device_may_wakeup(dev); int ret = 0; - ret = dwc3_qcom_suspend(qcom); + + ret = dwc3_qcom_suspend(qcom, wakeup); if (!ret) qcom->pm_suspended = true; @@ -957,9 +959,10 @@ static int __maybe_unused dwc3_qcom_pm_suspend(struct device *dev) static int __maybe_unused dwc3_qcom_pm_resume(struct device *dev) { struct dwc3_qcom *qcom = dev_get_drvdata(dev); + bool wakeup = device_may_wakeup(dev); int ret; - ret = dwc3_qcom_resume(qcom); + ret = dwc3_qcom_resume(qcom, wakeup); if (!ret) qcom->pm_suspended = false; @@ -970,14 +973,14 @@ static int __maybe_unused dwc3_qcom_runtime_suspend(struct device *dev) { struct dwc3_qcom *qcom = dev_get_drvdata(dev); - return dwc3_qcom_suspend(qcom); + return dwc3_qcom_suspend(qcom, true); } static int __maybe_unused dwc3_qcom_runtime_resume(struct device *dev) { struct dwc3_qcom *qcom = dev_get_drvdata(dev); - return dwc3_qcom_resume(qcom); + return dwc3_qcom_resume(qcom, true); } static const struct dev_pm_ops dwc3_qcom_dev_pm_ops = {
A device must enable wakeups during runtime suspend regardless of whether it is capable and allowed to wake the system up from system suspend. Fixes: 2664deb09306 ("usb: dwc3: qcom: Honor wakeup enabled/disabled state") Signed-off-by: Johan Hovold <johan+linaro@kernel.org> --- drivers/usb/dwc3/dwc3-qcom.c | 19 +++++++++++-------- 1 file changed, 11 insertions(+), 8 deletions(-)