On Thu, Apr 07, 2022 at 11:06:40AM -0700, Matthias Kaehlcke wrote: > On Thu, Apr 07, 2022 at 02:15:04PM +0530, Sandeep Maheswaram wrote: > > Adding wakeup-source property for USB controller in SC7280. > > This property is added to inform that the USB controller is > > wake up capable and to conditionally power down the phy during > > system suspend. > > > > Signed-off-by: Sandeep Maheswaram <quic_c_sanm@xxxxxxxxxxx> > > --- > > arch/arm64/boot/dts/qcom/sc7280.dtsi | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi > > index f0b64be..046262a 100644 > > --- a/arch/arm64/boot/dts/qcom/sc7280.dtsi > > +++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi > > @@ -2916,6 +2916,7 @@ > > phys = <&usb_1_hsphy>, <&usb_1_ssphy>; > > phy-names = "usb2-phy", "usb3-phy"; > > maximum-speed = "super-speed"; > > + wakeup-source; > > }; > > }; > > Not all SC7280 boards may want to enable wakeup from USB, so this is > probably best configured on a per-board basis. This wakeup capability is provided by the SoC. If a particular board does not want to support, ideally it needs to be disabled from user space. The capability is always there but some platforms choose to disable it. Thanks, Pavan
