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Commit 7580862b authored by John Youn's avatar John Youn Committed by Felipe Balbi
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usb: dwc3: Enable SuperSpeedPlus 



Enable SuperSpeedPlus by programming the DCFG.speed and after
enumerating, set gadget->speed appropriately.

Signed-off-by: default avatarJohn Youn <johnyoun@synopsys.com>
Signed-off-by: default avatarFelipe Balbi <balbi@kernel.org>
parent 2c7f1bd9

drivers/usb/dwc3/gadget.c

+8 −0
Original line number Original line Diff line number Diff line
@@ -1667,6 +1667,9 @@ static int dwc3_gadget_start(struct usb_gadget *g, 
		case USB_SPEED_HIGH:

		case USB_SPEED_HIGH:

			reg |= DWC3_DSTS_HIGHSPEED;

			reg |= DWC3_DSTS_HIGHSPEED;

			break;

			break;

		case USB_SPEED_SUPER_PLUS:

			reg |= DWC3_DSTS_SUPERSPEED_PLUS;

			break;

		case USB_SPEED_SUPER:	/* FALLTHROUGH */

		case USB_SPEED_SUPER:	/* FALLTHROUGH */

		case USB_SPEED_UNKNOWN:	/* FALTHROUGH */

		case USB_SPEED_UNKNOWN:	/* FALTHROUGH */

		default:

		default:
@@ -2371,6 +2374,11 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc) 
	dwc3_update_ram_clk_sel(dwc, speed);

	dwc3_update_ram_clk_sel(dwc, speed);





	switch (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:

	case DWC3_DCFG_SUPERSPEED:

		/*

		/*

		 * WORKAROUND: DWC3 revisions <1.90a have an issue which

		 * WORKAROUND: DWC3 revisions <1.90a have an issue which