Commit d105e7f8 authored by Felipe Balbi's avatar Felipe Balbi
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usb: dwc3: fix PHY error handling 



PHY layer no longer returns NULL. It will
return -ENXIO when PHY layer isn't enabled
and we can use that to bail out instead of
request a probe deferral.

Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 817e5f33

drivers/usb/dwc3/core.c

+22 −2
Original line number Diff line number Diff line
@@ -434,12 +434,32 @@ static int dwc3_probe(struct platform_device *pdev) 
		dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3);

	}



	if (IS_ERR_OR_NULL(dwc->usb2_phy)) {

	if (IS_ERR(dwc->usb2_phy)) {

		ret = PTR_ERR(dwc->usb2_phy);



		/*

		 * if -ENXIO is returned, it means PHY layer wasn't

		 * enabled, so it makes no sense to return -EPROBE_DEFER

		 * in that case, since no PHY driver will ever probe.

		 */

		if (ret == -ENXIO)

			return ret;



		dev_err(dev, "no usb2 phy configured\n");

		return -EPROBE_DEFER;

	}



	if (IS_ERR_OR_NULL(dwc->usb3_phy)) {

	if (IS_ERR(dwc->usb3_phy)) {

		ret = PTR_ERR(dwc->usb2_phy);



		/*

		 * if -ENXIO is returned, it means PHY layer wasn't

		 * enabled, so it makes no sense to return -EPROBE_DEFER

		 * in that case, since no PHY driver will ever probe.

		 */

		if (ret == -ENXIO)

			return ret;



		dev_err(dev, "no usb3 phy configured\n");

		return -EPROBE_DEFER;

	}