A board I'm working on seems to get its usb->sata bridge in a rather confused state during reboot, which unfortunately can't be recovered on the next boot (only hard reset helps). This seems to be avoidable by turning off vbus, which turns the internal usb hub off on shutdown. First patch add the ability to describe vbus regulators for the rockchip usb phy, second one starts using that on the rock2 square board and while the final one adds the actual workaround of turning off the phy on shutdown. Sjoerd Simons (3): phy: rockchip-usb: Add vbus regulator support. ARM: dts: rockchip: rock2: Setup usb vbus-supply usb: dwc2: Power off the phy on shutdown .../devicetree/bindings/phy/rockchip-usb-phy.txt | 1 + arch/arm/boot/dts/rk3288-rock2-square.dts | 8 ++++---- drivers/phy/phy-rockchip-usb.c | 19 +++++++++++++++++++ drivers/usb/dwc2/platform.c | 3 +++ 4 files changed, 27 insertions(+), 4 deletions(-) -- 2.11.0
