diff options
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 14ab5594a595..0aa89e704a55 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2120,6 +2120,12 @@ static void __dwc3_gadget_set_speed(struct dwc3 *dwc) reg |= DWC3_DCFG_SUPERSPEED_PLUS; } } + + if (DWC3_IP_IS(DWC32) && + dwc->gadget_max_speed > USB_SPEED_UNKNOWN && + dwc->gadget_max_speed < USB_SPEED_SUPER_PLUS) + reg &= ~DWC3_DCFG_NUMLANES(~0); + dwc3_writel(dwc->regs, DWC3_DCFG, reg); } @@ -3369,12 +3375,18 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc) struct dwc3_ep *dep; int ret; u32 reg; + u8 lanes = 1; u8 speed; reg = dwc3_readl(dwc->regs, DWC3_DSTS); speed = reg & DWC3_DSTS_CONNECTSPD; dwc->speed = speed; + if (DWC3_IP_IS(DWC32)) + lanes = DWC3_DSTS_CONNLANES(reg) + 1; + + dwc->gadget->ssp_rate = USB_SSP_GEN_UNKNOWN; + /* * RAMClkSel is reset to 0 after USB reset, so it must be reprogrammed * each time on Connect Done. @@ -3389,6 +3401,11 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc) dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512); dwc->gadget->ep0->maxpacket = 512; dwc->gadget->speed = USB_SPEED_SUPER_PLUS; + + if (lanes > 1) + dwc->gadget->ssp_rate = USB_SSP_GEN_2x2; + else + dwc->gadget->ssp_rate = USB_SSP_GEN_2x1; break; case DWC3_DSTS_SUPERSPEED: /* @@ -3410,6 +3427,11 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc) dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512); dwc->gadget->ep0->maxpacket = 512; dwc->gadget->speed = USB_SPEED_SUPER; + + if (lanes > 1) { + dwc->gadget->speed = USB_SPEED_SUPER_PLUS; + dwc->gadget->ssp_rate = USB_SSP_GEN_1x2; + } break; case DWC3_DSTS_HIGHSPEED: dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(64); @@ -3904,6 +3926,7 @@ int dwc3_gadget_init(struct dwc3 *dwc) dev->platform_data = dwc; dwc->gadget->ops = &dwc3_gadget_ops; dwc->gadget->speed = USB_SPEED_UNKNOWN; + dwc->gadget->ssp_rate = USB_SSP_GEN_UNKNOWN; dwc->gadget->sg_supported = true; dwc->gadget->name = "dwc3-gadget"; dwc->gadget->lpm_capable = true; |