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Commit b6abc793 authored by Vijayavardhan Vennapusa's avatar Vijayavardhan Vennapusa Committed by Gerrit - the friendly Code Review server
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dwc3: msm: Add module parameter to disable dp pulse 



Add module parameter to disable sending pulse on D+ for CDP
charger, which can be enabled while running BC1.2 compliance.
Else could see CDP test failure, as compliance tester see pullup
on D+ line and starts enumeration.

Change-Id: I25dbad69ca4e6dcdf7555617ccd6eb9b34b08d40
Signed-off-by: default avatarVijayavardhan Vennapusa <quic_vvreddy@quicinc.com>
parent 0f715024

drivers/usb/dwc3/dwc3-msm.c

+6 −1
Original line number Diff line number Diff line
@@ -47,6 +47,10 @@ 
#include "debug.h"

#include "xhci.h"



static bool bc12_compliance;

module_param(bc12_compliance, bool, 0644);

MODULE_PARM_DESC(bc12_compliance, "Disable sending dp pulse for CDP");



#define SDP_CONNETION_CHECK_TIME 10000 /* in ms */

#define EXTCON_SYNC_EVENT_TIMEOUT_MS 1500 /* in ms */
@@ -3379,7 +3383,8 @@ static int dwc3_msm_vbus_notifier(struct notifier_block *nb, 
	 * and only when the vbus connect event is a valid one.

	 */

	if (get_psy_type(mdwc) == POWER_SUPPLY_TYPE_USB_CDP &&

			mdwc->vbus_active && !mdwc->check_eud_state) {

			mdwc->vbus_active &&

				!mdwc->check_eud_state && !bc12_compliance) {

		dev_dbg(mdwc->dev, "Connected to CDP, pull DP up\n");

		usb_phy_drive_dp_pulse(mdwc->hs_phy, DP_PULSE_WIDTH_MSEC);

	}