drivers: usb: enable wake-up and link status change events#455
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MaheshAvula-Alifsemi wants to merge 1 commit intoalifsemi:mainfrom
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drivers: usb: enable wake-up and link status change events#455MaheshAvula-Alifsemi wants to merge 1 commit intoalifsemi:mainfrom
MaheshAvula-Alifsemi wants to merge 1 commit intoalifsemi:mainfrom
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MaheshAvula-Alifsemi
requested review from
RupeshKumar-AlifSemi,
silesh-alifsemi and
sudhir-alifsemi
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Pull request overview
Enable DWC3 device events for wakeup and link-state changes, and add callbacks to propagate suspend/resume behavior up to the UDC layer.
Changes:
- Enable WKUPEVTEN and ULSTCNGEN in DEVTEN and dispatch new wakeup/suspend callbacks.
- Implement host-initiated remote wakeup by requesting Recovery and polling for U0/On.
- Make SETUP handling message-queue safe by copying setup bytes into the message.
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 6 comments.
| File | Description |
|---|---|
| drivers/usb/udc/udc_dwc3.h | Adds wakeup/suspend callback hooks to the driver interface. |
| drivers/usb/udc/udc_dwc3.c | Enables/disables new events, adds suspend/resume callbacks, implements host wakeup, and queues SETUP bytes. |
| drivers/usb/common/usb_dwc3_hw.h | Adds wake/power-opt/link-state related bitfields/macros used by the driver updates. |
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RupeshKumar-AlifSemi
requested changes
Apr 1, 2026
Enable wakeup (WKUPEVTEN) and link status change (ULSTCNGEN) device events. Add suspend callback on L2 link state and wakeup callback on resume. Implement udc_dwc3_host_wakeup() to request recovery link state and poll for ON state transition. Signed-off-by: Mahesh Avula <mahesh.avula@alifsemi.com>
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MaheshAvula-Alifsemi
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Apr 2, 2026
Added PM(Power Management) support in usb driver. This PR is depends on alifsemi#455 Signed-off-by: Mahesh Avula <mahesh.avula@alifsemi.com>
MaheshAvula-Alifsemi
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Apr 7, 2026
Added PM(Power Management) support in usb driver. This PR is depends on alifsemi#455 Signed-off-by: Mahesh Avula <mahesh.avula@alifsemi.com>
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Enable wakeup (WKUPEVTEN) and link status change (ULSTCNGEN) device events.
Add suspend callback on L2 link state and wakeup callback on resume.
Implement udc_dwc3_host_wakeup() to request recovery link state and poll for ON state transition.