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Commit 83d98223 authored by Gregory Herrero's avatar Gregory Herrero Committed by Felipe Balbi
Browse files

usb: dwc2: gadget: add vbus_session support 



Enable phy driver to report vbus session. This allows us to remove
D+ pullup when vbus is not present.

Tested-by: default avatarRobert Baldyga <r.baldyga@samsung.com>
Acked-by: default avatarPaul Zimmerman <paulz@synopsys.com>
Signed-off-by: default avatarGregory Herrero <gregory.herrero@intel.com>
Signed-off-by: default avatarMian Yousaf Kaukab <yousaf.kaukab@intel.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent 48b20bcb

drivers/usb/dwc2/gadget.c

+24 −0
Original line number Original line Diff line number Diff line
@@ -3009,11 +3009,35 @@ static int s3c_hsotg_pullup(struct usb_gadget *gadget, int is_on) 
	return 0;

	return 0;

}

}





static int s3c_hsotg_vbus_session(struct usb_gadget *gadget, int is_active)

{

	struct dwc2_hsotg *hsotg = to_hsotg(gadget);

	unsigned long flags;



	dev_dbg(hsotg->dev, "%s: is_active: %d\n", __func__, is_active);

	spin_lock_irqsave(&hsotg->lock, flags);



	if (is_active) {

		/* Kill any ep0 requests as controller will be reinitialized */

		kill_all_requests(hsotg, hsotg->eps_out[0], -ECONNRESET);

		s3c_hsotg_core_init_disconnected(hsotg);

		if (hsotg->enabled)

			s3c_hsotg_core_connect(hsotg);

	} else {

		s3c_hsotg_core_disconnect(hsotg);

		s3c_hsotg_disconnect(hsotg);

	}



	spin_unlock_irqrestore(&hsotg->lock, flags);

	return 0;

}



static const struct usb_gadget_ops s3c_hsotg_gadget_ops = {

static const struct usb_gadget_ops s3c_hsotg_gadget_ops = {

	.get_frame	= s3c_hsotg_gadget_getframe,

	.get_frame	= s3c_hsotg_gadget_getframe,

	.udc_start		= s3c_hsotg_udc_start,

	.udc_start		= s3c_hsotg_udc_start,

	.udc_stop		= s3c_hsotg_udc_stop,

	.udc_stop		= s3c_hsotg_udc_stop,

	.pullup                 = s3c_hsotg_pullup,

	.pullup                 = s3c_hsotg_pullup,

	.vbus_session		= s3c_hsotg_vbus_session,

};

};





/**

/**