Commit 8b377e17 authored May 17, 2019 by Harry Yang

power: smb5-lib: Ignore repetitive PD_ACTIVE notice in PD session



If PD hard reset occurs while PD session is underway, charger driver
may receive duplicative PD_ACTIVE messages from PD driver. Handling
them is unnecessary and incurs delay, which may lead to another hard
reset.

No operation for repetitive PD_ACTIVE message while PD is active.

Change-Id: If7f4f5efd47808716085c612ecd1c60e220d3ef9
Signed-off-by: Harry Yang <harryy@codeaurora.org>

parent 580b80dd

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

+7 −0

Original line number	Diff line number	Diff line
		@@ -4074,6 +4074,13 @@ int smblib_set_prop_pd_active(struct smb_charger *chg,
		int rc = 0;
		int sec_charger;

		/*
		* Ignore repetitive notification while PD is active, which
		* is caused by hard reset.
		*/
		if (chg->pd_active && chg->pd_active == val->intval)
		return 0;

		chg->pd_active = val->intval;

		smblib_apsd_enable(chg, !chg->pd_active);