On Tue, 2019-12-03 at 11:01 +0800, Peter Chen wrote: > Otherwise, the system will hang if USB driver try to access > portsc register. > > Cc: André Draszik <git@xxxxxxxxxx> > Signed-off-by: Peter Chen <peter.chen@xxxxxxx> > --- > arch/arm/boot/dts/imx7s.dtsi | 7 +++++++ > 1 file changed, 7 insertions(+) > > diff --git a/arch/arm/boot/dts/imx7s.dtsi b/arch/arm/boot/dts/imx7s.dtsi > index c1a4fff5ceda..a5b380f530f8 100644 > --- a/arch/arm/boot/dts/imx7s.dtsi > +++ b/arch/arm/boot/dts/imx7s.dtsi > @@ -658,6 +658,12 @@ > reg = <1>; > power-supply = <®_1p0d>; > }; > + > + pgc_hsic_phy: power-domain@2 { > + #power-domain-cells = <0>; > + reg = <2>; > + power-supply = <®_1p2>; > + }; > }; > }; > }; > @@ -1101,6 +1107,7 @@ > compatible = "fsl,imx7d-usb", "fsl,imx27-usb"; > reg = <0x30b30000 0x200>; > interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>; > + power-domains = <&pgc_hsic_phy>; > clocks = <&clks IMX7D_USB_CTRL_CLK>; > fsl,usbphy = <&usbphynop3>; > fsl,usbmisc = <&usbmisc3 0>; It's a bit late now, but for completeness, with this patch applied the HSIC port works fine on my iMX7d board now. Thanks Peter. Tested-by: André Draszik <git@xxxxxxxxxx> Cheers, Andre'