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usb: dwc2: host: implement test mode 

Add support for SetPortFeature(PORT_TEST) for root port.

Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Jingwu Lin <jingwu.lin@intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Jingwu Lin 2015-04-29 22:09:17 +02:00 committed by Felipe Balbi
parent db62b9a804
commit 96d480e65e
1 changed files with 9 additions and 0 deletions
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9
drivers/usb/dwc2/hcd.c
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@ -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,