Hi Krzysztof On Mon, Jan 24, 2022 at 1:34 PM Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> wrote: > > Add required voltage regulators for USB DWC3 block on Exynos7 Espresso > board. Due to lack of schematics of Espresso board, the choice of > regulators is approximate. What bindings call VDD10, for Exynos7 should > be actually called VDD09 (0.9 V). Use regulators with a matching > voltage range based on vendor sources for Meizu Pro 5 M576 handset (also > with Exynos7420). > I checked Espresso board schematic, it is 0.9V for the USB and supplied by LDO4 > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxxxxx> > --- > arch/arm64/boot/dts/exynos/exynos7-espresso.dts | 5 +++++ > arch/arm64/boot/dts/exynos/exynos7.dtsi | 2 +- > 2 files changed, 6 insertions(+), 1 deletion(-) > > diff --git a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts > index 125c03f351d9..4c45e689d34a 100644 > --- a/arch/arm64/boot/dts/exynos/exynos7-espresso.dts > +++ b/arch/arm64/boot/dts/exynos/exynos7-espresso.dts > @@ -412,6 +412,11 @@ &ufs { > status = "okay"; > }; > > +&usbdrd { > + vdd10-supply = <&ldo4_reg>; > + vdd33-supply = <&ldo6_reg>; > +}; > + > &usbdrd_phy { > vbus-supply = <&usb30_vbus_reg>; > vbus-boost-supply = <&usb3drd_boost_5v>; > diff --git a/arch/arm64/boot/dts/exynos/exynos7.dtsi b/arch/arm64/boot/dts/exynos/exynos7.dtsi > index c3efbc8add38..01b4210d8b62 100644 > --- a/arch/arm64/boot/dts/exynos/exynos7.dtsi > +++ b/arch/arm64/boot/dts/exynos/exynos7.dtsi > @@ -672,7 +672,7 @@ usbdrd_phy: phy@15500000 { > #phy-cells = <1>; > }; > > - usbdrd3 { > + usbdrd: usb { > compatible = "samsung,exynos7-dwusb3"; > clocks = <&clock_fsys0 ACLK_USBDRD300>, > <&clock_fsys0 SCLK_USBDRD300_SUSPENDCLK>, > -- > 2.32.0 > -- Regards, Alim