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Commit 6401a855 authored by Vijayavardhan Vennapusa's avatar Vijayavardhan Vennapusa
Browse files

phy: msm: qusb: Fix BC1.2 compliance failures 



For Battery charging 1.2 compliance, device needs to apply VDP_SRC
for DCP charger after charger detection. Hence add required change
to apply VDP_SRC for DCP case. Also fix command time out issue
with CDP case as turning off regulators results in command timeout
while enabling Ep0 for enumeration.

Change-Id: I311a8c76d28bdb351c6d0c72f4430c95d79f0595
Signed-off-by: default avatarVijayavardhan Vennapusa <quic_vvreddy@quicinc.com>
parent b6abc793

drivers/usb/phy/phy-msm-qusb.c

+7 −1
Original line number Diff line number Diff line
@@ -195,6 +195,7 @@ struct qusb_phy { 
	bool			is_gpio_active_low;

	int			notifier_irq;

	bool			is_port_valid;

	bool			dcp_charger;



	/* debugfs entries */

	struct dentry		*root;
@@ -1514,13 +1515,14 @@ static void qusb_phy_port_state_work(struct work_struct *w) 
		if (status) {

			qusb_phy_notify_charger(qphy,

						POWER_SUPPLY_TYPE_USB_DCP);

			qphy->dcp_charger = true;

		} else {

			qusb_phy_notify_charger(qphy,

						POWER_SUPPLY_TYPE_USB_CDP);

			qusb_phy_unprepare_chg_det(qphy);

			qusb_phy_notify_extcon(qphy, EXTCON_USB, 1);

		}



		qusb_phy_unprepare_chg_det(qphy);

		qphy->port_state = PORT_CHG_DET_DONE;

		/*

		 * Fall through to check if cable got disconnected
@@ -1528,6 +1530,10 @@ static void qusb_phy_port_state_work(struct work_struct *w) 
		 */

	case PORT_CHG_DET_DONE:

		if (!vbus_active) {

			if (qphy->dcp_charger) {

				qphy->dcp_charger = false;

				qusb_phy_unprepare_chg_det(qphy);

			}

			qphy->port_state = PORT_UNKNOWN;

			qusb_phy_notify_extcon(qphy, EXTCON_USB, 0);

		}