From 7580862b3e80af9b90dd12daeedee63e3f5683c2 Mon Sep 17 00:00:00 2001 From: John Youn Date: Fri, 5 Feb 2016 17:09:13 -0800 Subject: [PATCH] usb: dwc3: Enable SuperSpeedPlus Enable SuperSpeedPlus by programming the DCFG.speed and after enumerating, set gadget->speed appropriately. Signed-off-by: John Youn Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/gadget.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 3ad7ac6aadf8..482e6a17d921 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1667,6 +1667,9 @@ static int dwc3_gadget_start(struct usb_gadget *g, case USB_SPEED_HIGH: reg |= DWC3_DSTS_HIGHSPEED; break; + case USB_SPEED_SUPER_PLUS: + reg |= DWC3_DSTS_SUPERSPEED_PLUS; + break; case USB_SPEED_SUPER: /* FALLTHROUGH */ case USB_SPEED_UNKNOWN: /* FALTHROUGH */ default: @@ -2371,6 +2374,11 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc) dwc3_update_ram_clk_sel(dwc, speed); switch (speed) { + case DWC3_DCFG_SUPERSPEED_PLUS: + dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512); + dwc->gadget.ep0->maxpacket = 512; + dwc->gadget.speed = USB_SPEED_SUPER_PLUS; + break; case DWC3_DCFG_SUPERSPEED: /* * WORKAROUND: DWC3 revisions <1.90a have an issue which -- 2.20.1