USB1 is connected to the on-module USB 3.0 hub and power to the hub (actually it's a reset signal, modeled as a fixed regulator, that will be released) should be enabled only during the first probing of the device to avoid the hub from entering its low-power mode (where it tries to attach on a fixed interval, but we always miss the timeslot when U-Boot has the controller listening).
This adds a 'tsd,usb-port-power' stringlist to enable the infrastructure in the board-specific usb_hub_reset_devices to find and control the fixed regulator associated with control of the USB hub. Signed-off-by: Philipp Tomsich <philipp.toms...@theobroma-systems.com> Tested-by: Jakob Unterwurzacher <jakob.unterwurzac...@theobroma-systems.com> --- Changes in v3: None Changes in v2: - changed the property name to 'tsd,usb-port-power' to make it a vendor-specific property arch/arm/dts/rk3399-puma.dtsi | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/dts/rk3399-puma.dtsi b/arch/arm/dts/rk3399-puma.dtsi index 96bd4fe..0f5e6ac 100644 --- a/arch/arm/dts/rk3399-puma.dtsi +++ b/arch/arm/dts/rk3399-puma.dtsi @@ -544,6 +544,7 @@ &dwc3_typec1 { status = "okay"; + tsd,usb-port-power = "usbhub_enable"; }; &vopb { -- 2.1.4 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot