From 96d480e65ea0e4e950f75029b8a1ff4c1269f8b0 Mon Sep 17 00:00:00 2001 From: Jingwu Lin Date: Wed, 29 Apr 2015 22:09:17 +0200 Subject: [PATCH] usb: dwc2: host: implement test mode Add support for SetPortFeature(PORT_TEST) for root port. Acked-by: John Youn Signed-off-by: Jingwu Lin Signed-off-by: Felipe Balbi --- drivers/usb/dwc2/hcd.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index 745230d..4773d27 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -1779,6 +1779,15 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, /* Not supported */ break; + case USB_PORT_FEAT_TEST: + hprt0 = dwc2_read_hprt0(hsotg); + dev_dbg(hsotg->dev, + "SetPortFeature - USB_PORT_FEAT_TEST\n"); + hprt0 &= ~HPRT0_TSTCTL_MASK; + hprt0 |= (windex >> 8) << HPRT0_TSTCTL_SHIFT; + writel(hprt0, hsotg->regs + HPRT0); + break; + default: retval = -EINVAL; dev_err(hsotg->dev, -- 2.7.4