| Message ID | 20201103140214.21690-1-m.szyprowski@samsung.com |
|---|---|
| State | New |
| Headers | show |
| Series | ARM: dts: exynos: Enable DWC2 dual-role support on OdroidU3+ boards | expand |
On 03.11.2020 15:02, Marek Szyprowski wrote: > MicroUSB port on OdroidU3+ boards can operate both as peripheral or as > host port. Till now it was configured as pheriperal only port, but it > turned out that the DWC2 driver code already handles everything needed to > support USB role-switch, so switch it to dual-role (OTG) mode. This has > no effect on OdroidU3 (with 'plus') and OdroidX2, which doesn't have USB /s/with/without > needed ID pin and VBUS wiring. Those will still operate correctly in > pheriperal mode only. > > Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> > --- > arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 1 - > arch/arm/boot/dts/exynos4412-odroidu3.dts | 14 ++++++++++++++ > arch/arm/boot/dts/exynos4412-odroidx.dts | 4 ++++ > 3 files changed, 18 insertions(+), 1 deletion(-) > > diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi > index 2a6f5b1d7645..2b20d9095d9f 100644 > --- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi > +++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi > @@ -255,7 +255,6 @@ > }; > > &hsotg { > - dr_mode = "peripheral"; > status = "okay"; > vusb_d-supply = <&ldo15_reg>; > vusb_a-supply = <&ldo12_reg>; > diff --git a/arch/arm/boot/dts/exynos4412-odroidu3.dts b/arch/arm/boot/dts/exynos4412-odroidu3.dts > index b8549d846f86..746c2a99a83c 100644 > --- a/arch/arm/boot/dts/exynos4412-odroidu3.dts > +++ b/arch/arm/boot/dts/exynos4412-odroidu3.dts > @@ -21,6 +21,15 @@ > reg = <0x40000000 0x7FF00000>; > }; > > + vbus_otg_reg: voltage-regulator-1 { > + compatible = "regulator-fixed"; > + regulator-name = "VBUS_VDD_5.0V"; > + regulator-min-microvolt = <5000000>; > + regulator-max-microvolt = <5000000>; > + gpio = <&gpl2 0 GPIO_ACTIVE_HIGH>; > + enable-active-high; > + }; > + > leds { > compatible = "gpio-leds"; > led1 { > @@ -105,6 +114,11 @@ > phy-names = "hsic0", "hsic1"; > }; > > +&hsotg { > + dr_mode = "otg"; > + vbus-supply = <&vbus_otg_reg>; > +}; > + > &sound { > model = "Odroid-U3"; > samsung,audio-widgets = > diff --git a/arch/arm/boot/dts/exynos4412-odroidx.dts b/arch/arm/boot/dts/exynos4412-odroidx.dts > index 46381e9097f4..d6ee62bf336c 100644 > --- a/arch/arm/boot/dts/exynos4412-odroidx.dts > +++ b/arch/arm/boot/dts/exynos4412-odroidx.dts > @@ -76,6 +76,10 @@ > }; > }; > > +&hsotg { > + dr_mode = "peripheral"; > +}; > + > &mshc_0 { > vqmmc-supply = <&buck8_reg>; > }; Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland
Hi Marek, On Wed, 4 Nov 2020 at 02:56, Marek Szyprowski <m.szyprowski@samsung.com> wrote: > > On 03.11.2020 15:02, Marek Szyprowski wrote: > > MicroUSB port on OdroidU3+ boards can operate both as peripheral or as > > host port. Till now it was configured as pheriperal only port, but it > > turned out that the DWC2 driver code already handles everything needed to > > support USB role-switch, so switch it to dual-role (OTG) mode. This has > > no effect on OdroidU3 (with 'plus') and OdroidX2, which doesn't have USB > /s/with/without > > needed ID pin and VBUS wiring. Those will still operate correctly in > > pheriperal mode only. > > > > Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> > > --- Thanks I have tested this patch on Odroid U3+ it enable the otg port [alarm@archl-u3et ~]$ lsusb -t /: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=exynos-ehci/3p, 480M |__ Port 2: Dev 2, If 0, Class=Vendor Specific Class, Driver=smsc95xx, 480M /: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=dwc2/1p, 480M |__ Port 1: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 480M Please add my Tested-by: Anand Moon <linux.amoon@gmail.com> Best Regards Anand
On Tue, Nov 03, 2020 at 03:02:14PM +0100, Marek Szyprowski wrote: > MicroUSB port on OdroidU3+ boards can operate both as peripheral or as > host port. Till now it was configured as pheriperal only port, but it > turned out that the DWC2 driver code already handles everything needed to > support USB role-switch, so switch it to dual-role (OTG) mode. This has > no effect on OdroidU3 (with 'plus') and OdroidX2, which doesn't have USB > needed ID pin and VBUS wiring. Those will still operate correctly in > pheriperal mode only. > > Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> > --- > arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 1 - > arch/arm/boot/dts/exynos4412-odroidu3.dts | 14 ++++++++++++++ > arch/arm/boot/dts/exynos4412-odroidx.dts | 4 ++++ Thanks, applied with corrected 'without', Anand's tag and node named just "regulator-1" (X has one and it is more generic). Best regards, Krzysztof
diff --git a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi index 2a6f5b1d7645..2b20d9095d9f 100644 --- a/arch/arm/boot/dts/exynos4412-odroid-common.dtsi +++ b/arch/arm/boot/dts/exynos4412-odroid-common.dtsi @@ -255,7 +255,6 @@ }; &hsotg { - dr_mode = "peripheral"; status = "okay"; vusb_d-supply = <&ldo15_reg>; vusb_a-supply = <&ldo12_reg>; diff --git a/arch/arm/boot/dts/exynos4412-odroidu3.dts b/arch/arm/boot/dts/exynos4412-odroidu3.dts index b8549d846f86..746c2a99a83c 100644 --- a/arch/arm/boot/dts/exynos4412-odroidu3.dts +++ b/arch/arm/boot/dts/exynos4412-odroidu3.dts @@ -21,6 +21,15 @@ reg = <0x40000000 0x7FF00000>; }; + vbus_otg_reg: voltage-regulator-1 { + compatible = "regulator-fixed"; + regulator-name = "VBUS_VDD_5.0V"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + gpio = <&gpl2 0 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; + leds { compatible = "gpio-leds"; led1 { @@ -105,6 +114,11 @@ phy-names = "hsic0", "hsic1"; }; +&hsotg { + dr_mode = "otg"; + vbus-supply = <&vbus_otg_reg>; +}; + &sound { model = "Odroid-U3"; samsung,audio-widgets = diff --git a/arch/arm/boot/dts/exynos4412-odroidx.dts b/arch/arm/boot/dts/exynos4412-odroidx.dts index 46381e9097f4..d6ee62bf336c 100644 --- a/arch/arm/boot/dts/exynos4412-odroidx.dts +++ b/arch/arm/boot/dts/exynos4412-odroidx.dts @@ -76,6 +76,10 @@ }; }; +&hsotg { + dr_mode = "peripheral"; +}; + &mshc_0 { vqmmc-supply = <&buck8_reg>; };
MicroUSB port on OdroidU3+ boards can operate both as peripheral or as host port. Till now it was configured as pheriperal only port, but it turned out that the DWC2 driver code already handles everything needed to support USB role-switch, so switch it to dual-role (OTG) mode. This has no effect on OdroidU3 (with 'plus') and OdroidX2, which doesn't have USB needed ID pin and VBUS wiring. Those will still operate correctly in pheriperal mode only. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> --- arch/arm/boot/dts/exynos4412-odroid-common.dtsi | 1 - arch/arm/boot/dts/exynos4412-odroidu3.dts | 14 ++++++++++++++ arch/arm/boot/dts/exynos4412-odroidx.dts | 4 ++++ 3 files changed, 18 insertions(+), 1 deletion(-) -- 2.17.1