| Message ID | 20220123111644.25540-2-krzysztof.kozlowski@canonical.com |
|---|---|
| State | New |
| Headers | show |
| Series | [01/12] arm64: dts: exynos: add USB DWC3 supplies to Espresso board | expand |
Hi Krzysztof On Mon, Jan 24, 2022 at 1:34 PM Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> 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@canonical.com> > --- > 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 >
On 26/01/2022 07:58, Alim Akhtar wrote: > Hi Krzysztof > > On Mon, Jan 24, 2022 at 1:34 PM Krzysztof Kozlowski > <krzysztof.kozlowski@canonical.com> 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 > Thanks for checking! Best regards, Krzysztof
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>,
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). Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> --- arch/arm64/boot/dts/exynos/exynos7-espresso.dts | 5 +++++ arch/arm64/boot/dts/exynos/exynos7.dtsi | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-)