Commit e02264af authored by Xu Yang's avatar Xu Yang Committed by Greg Kroah-Hartman
Browse files

usb: dwc3: drd: extend dwc3_pre_set_role() to extcon and otg usecase 



Call dwc3_pre_set_role() to support both extcon and otg usecase, so that
the glue driver can do proper action in case of role changes.

Reviewed-by: default avatarFrank Li <Frank.Li@nxp.com>
Acked-by: default avatarThinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: default avatarXu Yang <xu.yang_2@nxp.com>
Link: https://patch.msgid.link/20260108081433.2119328-1-xu.yang_2@nxp.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 0145e7ac

drivers/usb/dwc3/drd.c

+7 −3
Original line number Diff line number Diff line
@@ -381,6 +381,7 @@ void dwc3_otg_update(struct dwc3 *dwc, bool ignore_idstatus) 
		dwc3_otgregs_init(dwc);

		dwc3_otg_host_init(dwc);

		spin_unlock_irqrestore(&dwc->lock, flags);

		dwc3_pre_set_role(dwc, USB_ROLE_HOST);

		ret = dwc3_host_init(dwc);

		if (ret) {

			dev_err(dwc->dev, "failed to initialize host\n");
@@ -406,6 +407,7 @@ void dwc3_otg_update(struct dwc3 *dwc, bool ignore_idstatus) 
			otg_set_vbus(dwc->usb2_phy->otg, false);

		if (dwc->usb2_generic_phy[0])

			phy_set_mode(dwc->usb2_generic_phy[0], PHY_MODE_USB_DEVICE);

		dwc3_pre_set_role(dwc, USB_ROLE_DEVICE);

		ret = dwc3_gadget_init(dwc);

		if (ret)

			dev_err(dwc->dev, "failed to initialize peripheral\n");
@@ -433,10 +435,12 @@ static int dwc3_drd_notifier(struct notifier_block *nb, 
			     unsigned long event, void *ptr)

{

	struct dwc3 *dwc = container_of(nb, struct dwc3, edev_nb);

	u32 mode = event ? DWC3_GCTL_PRTCAP_HOST : DWC3_GCTL_PRTCAP_DEVICE;

	enum usb_role role = mode == DWC3_GCTL_PRTCAP_HOST ?

				     USB_ROLE_HOST : USB_ROLE_DEVICE;



	dwc3_set_mode(dwc, event ?

		      DWC3_GCTL_PRTCAP_HOST :

		      DWC3_GCTL_PRTCAP_DEVICE);

	dwc3_pre_set_role(dwc, role);

	dwc3_set_mode(dwc, mode);



	return NOTIFY_DONE;

}