Messages in this thread | | | Subject | Re: [PATCH 0/3] Add USB role switch support to DWC2 | From | Amelie DELAUNAY <> | Date | Fri, 24 Jul 2020 14:57:05 +0200 |
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Hi Felipe,
I saw that you took DT patch (ARM: dts: stm32: enable usb-role-switch on USB OTG on stm32mp15xx-dkx) in your next branch. As it was already in Alex' stm32-next branch, a potential merge conflict could occurred.
Regards, Amelie
On 7/21/20 10:54 AM, Alexandre Torgue wrote: > Hi Amélie > > On 6/16/20 4:07 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://www.st.com/en/evaluation-tools/stm32mp157c-dk2.html >> >> 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 >> > > DT patch applied on stm32-next. > > Thanks > Alex
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