On the RK3399-Q7, we need to turn on the on-module USB hub before using the USB host interfaces (only the OTG interface is directly connected to the edge connector). This drops the deprecated 'rockchip,vbus-gpio' property and uses a fixed regulator to turn on the USB hub.
References: 26a8b80 "usb: host: xhci-rockchip: use fixed regulator to control vbus" Signed-off-by: Philipp Tomsich philipp.tomsich@theobroma-systems.com ---
arch/arm/dts/rk3399-puma.dtsi | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/arch/arm/dts/rk3399-puma.dtsi b/arch/arm/dts/rk3399-puma.dtsi index 85e00ec..3899b2a 100644 --- a/arch/arm/dts/rk3399-puma.dtsi +++ b/arch/arm/dts/rk3399-puma.dtsi @@ -108,6 +108,17 @@ regulator-max-microvolt = <1800000>; };
+ usbhub_enable: usbhub_enable { + compatible = "regulator-fixed"; + regulator-name = "usbhub_enable"; + enable-active-low; + gpio = <&gpio4 3 GPIO_ACTIVE_HIGH>; + regulator-always-on; + regulator-boot-on; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + }; + vccadc_ref: vccadc-ref { compatible = "regulator-fixed"; regulator-name = "vcc1v8_sys"; @@ -533,7 +544,6 @@ };
&dwc3_typec1 { - rockchip,vbus-gpio = <&gpio4 3 GPIO_ACTIVE_LOW>; status = "okay"; };