After feedback from Kishon and John, I've reworked my efforts to add extcon support to the phy-hi6220-usb driver and instead have added the extcon support to the dwc2 driver directly.
This avoids odd interactions trying to wire the generic phy to the otg gadget structure to send proper connect/disconnect notifications to the hcd core. Since this is my first stab at moving it to the dwc2 driver, I suspect there is further improvements possible, so please let me know if there's anything folks would like to see changed. In this series, I also re-added an older patch to force port resuming when transitioning from host -> otg mode, as that was catching me as the bus would suspend if there were no devices plugged into the host ports and then would not work when replugging in the gadget cable. If there is a better way to handle this bus resuming logic in gadget mode, please let me know. Feedback and guidance would be greatly appreciated! thanks -john Cc: Wei Xu <[email protected]> Cc: Guodong Xu <[email protected]> Cc: Amit Pundir <[email protected]> Cc: Rob Herring <[email protected]> Cc: John Youn <[email protected]> Cc: Douglas Anderson <[email protected]> Cc: Chen Yu <[email protected]> Cc: Kishon Vijay Abraham I <[email protected]> Cc: Felipe Balbi <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: [email protected] Chen Yu (1): usb: dwc2: Force port resume on switching to device mode John Stultz (2): usb: dwc2: Add extcon support to dwc2 driver usb: dwc2: Avoid suspending if we're in gadget mode arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 11 +++++++++ drivers/usb/dwc2/core.h | 16 ++++++++++++ drivers/usb/dwc2/core_intr.c | 25 +++++++++++++++++++ drivers/usb/dwc2/hcd.c | 34 +++++++++++++++++++++++++ drivers/usb/dwc2/platform.c | 41 +++++++++++++++++++++++++++++++ 5 files changed, 127 insertions(+) -- 2.7.4
