Hi, On 6/16/2020 6:07 PM, Amelie Delaunay wrote: > When using usb-c connector (but it can also be the case with a micro-b > connector), iddig, avalid, bvalid, vbusvalid input signals may not be > connected to the DWC2 OTG controller. > DWC2 OTG controller features an overriding control of the PHY voltage valid > and ID input signals. > So, missing signals can be forced using usb role from usb role switch and > this override feature. > > This series adds support for usb role switch to dwc2, by using overriding > control of the PHY voltage valid and ID input signals. > > It has been tested on stm32mp157c-dk2 [1], which has a Type-C connector > managed by a Type-C port controller, and connected to USB OTG controller. > > [1] https://urldefense.com/v3/__https://www.st.com/en/evaluation-tools/stm32mp157c-dk2.html__;!!A4F2R9G_pg!KPU6pLcAMaVrFxzSp3peLkjZzWJzjsc__Kl878UYSLY2Cnv5NMmwACsY4kTCow0$ > > Amelie Delaunay (3): > usb: dwc2: override PHY input signals with usb role switch support > usb: dwc2: don't use ID/Vbus detection if usb-role-switch on STM32MP15 > SoCs > ARM: dts: stm32: enable usb-role-switch on USB OTG on stm32mp15xx-dkx > > arch/arm/boot/dts/stm32mp15xx-dkx.dtsi | 2 +- > drivers/usb/dwc2/Kconfig | 1 + > drivers/usb/dwc2/Makefile | 2 +- > drivers/usb/dwc2/core.h | 8 ++ > drivers/usb/dwc2/drd.c | 190 +++++++++++++++++++++++++ > drivers/usb/dwc2/gadget.c | 2 +- > drivers/usb/dwc2/params.c | 4 +- > drivers/usb/dwc2/platform.c | 13 ++ > 8 files changed, 218 insertions(+), 4 deletions(-) > create mode 100644 drivers/usb/dwc2/drd.c > For dwc2: Acked-by Minas Harutyunyan <hminas@xxxxxxxxxxxx> Thanks, Minas
