dwc3_enable_susphy(9)

okay bestie, welcome to dwc3_enable_susphy(9) from the Kernel API Manual — it’s giving “tiny function, very specific USB port SUSPHY business” and we’re gonna get into it. ✨💅

💖 NAME 💖

dwc3_enable_susphy — Control SUSPHY status for all USB ports

🎀 SYNOPSIS 🎀

void dwc3_enable_susphy (struct dwc3 *dwc , bool enable );

🌸 ARGUMENTS 🌸

• dwc — Pointer to DWC3 controller context.
• enable — True to enable SUSPHY, false to disable.

🦋 DESCRIPTION 🦋

okay so this one enables or disables the USB3 PHY SUSPEND and USB2 PHY SUSPHY feature for all available ports. literally all of them, bestie. 💅

Usually this is handled by the dwc3 core code, so it’s not a “call it just because” situation. It should only be used when skip_core_init_mode is used and the glue layer needs to manage SUSPHY settings itself, e.g., due to platform-specific requirements during mode switches.

⚠️ vibe check: the core code usually handles this, and the special context is skip_core_init_mode + the glue layer needing to manage SUSPHY settings itself. don’t lose the plot on that one. 🫶

👑 SEE ALSO 👑

• Kernel file ./drivers/usb/dwc3/glue.h
• dwc3_core_probe(9)
• dwc3_core_remove(9)
• dwc3_core_init(9)
• dwc3_core_exit(9)
• dwc3_host_init(9)
• dwc3_host_exit(9)
• dwc3_gadget_init(9)
• dwc3_gadget_exit(9)
• dwc3_set_prtcap(9)

this page is signed off from the ./drivers/usb/dwc3 source/version corner, dated October 2026, and it’s still serving dwc3_enable_susphy(9) realness to the very end. bye bestie, hydrate and handle your SUSPHY settings responsibly 🫶💜🎀