Commit 99288de3 authored by Ray Chi's avatar Ray Chi Committed by Greg Kroah-Hartman
Browse files

usb: dwc3: add an alternate path in vbus_draw callback 



This patch adds an alternate path in vbus_draw callback through
power supply property POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT.

Signed-off-by: default avatarRay Chi <raychi@google.com>
Link: https://lore.kernel.org/r/20210222115149.3606776-3-raychi@google.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 6f0764b5

drivers/usb/dwc3/gadget.c

+9 −1
Original line number Diff line number Diff line
@@ -2530,11 +2530,19 @@ static void dwc3_gadget_set_ssp_rate(struct usb_gadget *g, 
static int dwc3_gadget_vbus_draw(struct usb_gadget *g, unsigned int mA)

{

	struct dwc3		*dwc = gadget_to_dwc(g);

	union power_supply_propval	val = {0};

	int				ret;



	if (dwc->usb2_phy)

		return usb_phy_set_power(dwc->usb2_phy, mA);



	return 0;

	if (!dwc->usb_psy)

		return -EOPNOTSUPP;



	val.intval = mA;

	ret = power_supply_set_property(dwc->usb_psy, POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, &val);



	return ret;

}



static const struct usb_gadget_ops dwc3_gadget_ops = {