From ef1e322f3e1d9a221a1ee6109f6571429ee9fb4a Mon Sep 17 00:00:00 2001 From: Caleb Connolly Date: Tue, 23 Apr 2024 16:15:06 +0200 Subject: [PATCH] usb: dwc3: support USB 3.1 controllers The revision is different for these, add the additional check as in xhci-dwc3 core_init code. Equivalent upstream Linux patch: 690fb3718a70 ("usb: dwc3: Support Synopsys USB 3.1 IP") Reviewed-by: Neil Armstrong Tested-by: Neil Armstrong # on SM8550 Reviewed-by: Mattijs Korpershoek Reviewed-by: Marek Vasut Signed-off-by: Caleb Connolly Reviewed-by: Marek Vasut --- drivers/usb/dwc3/core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index c443d56746..a35b8c2f64 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -594,7 +594,8 @@ static int dwc3_core_init(struct dwc3 *dwc) reg = dwc3_readl(dwc->regs, DWC3_GSNPSID); /* This should read as U3 followed by revision number */ - if ((reg & DWC3_GSNPSID_MASK) != 0x55330000) { + if ((reg & DWC3_GSNPSID_MASK) != 0x55330000 && + (reg & DWC3_GSNPSID_MASK) != 0x33310000) { dev_err(dwc->dev, "this is not a DesignWare USB3 DRD Core\n"); ret = -ENODEV; goto err0; -- 2.39.5