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Commit 706aed0c authored by Ashay Jaiswal's avatar Ashay Jaiswal
Browse files

power: smb5-lib: fix non-compliant charger handling in micro USB mode 



In micro-USB mode, charger state machine is stuck in non-compliant
charger mode once s/w detects a non-compliant charger. Fix this by
moving back to compliant QC charger mode on charger removal.

Change-Id: I9dd592e34c00063e5d38a4d3d025cc96d16e6805
Signed-off-by: default avatarAshay Jaiswal <ashayj@codeaurora.org>
parent cf4e0244

drivers/power/supply/qcom/smb5-lib.c

+22 −0
Original line number Diff line number Diff line
@@ -972,6 +972,28 @@ static void smblib_uusb_removal(struct smb_charger *chg) 
	if (rc < 0)

		smblib_err(chg,

			"Couldn't un-vote DCP from USB ICL rc=%d\n", rc);



	/*

	 * if non-compliant charger caused UV, restore original max pulses

	 * and turn SUSPEND_ON_COLLAPSE_USBIN_BIT back on.

	 */

	if (chg->qc2_unsupported_voltage) {

		rc = smblib_masked_write(chg, HVDCP_PULSE_COUNT_MAX_REG,

				HVDCP_PULSE_COUNT_MAX_QC2_MASK,

				chg->qc2_max_pulses);

		if (rc < 0)

			smblib_err(chg, "Couldn't restore max pulses rc=%d\n",

					rc);



		rc = smblib_masked_write(chg, USBIN_AICL_OPTIONS_CFG_REG,

				SUSPEND_ON_COLLAPSE_USBIN_BIT,

				SUSPEND_ON_COLLAPSE_USBIN_BIT);

		if (rc < 0)

			smblib_err(chg, "Couldn't turn on SUSPEND_ON_COLLAPSE_USBIN_BIT rc=%d\n",

					rc);



		chg->qc2_unsupported_voltage = QC2_COMPLIANT;

	}

}



void smblib_suspend_on_debug_battery(struct smb_charger *chg)