linux-kernel - [PATCH 3/4] power: supply: sc2731_charger: Avoid repeated charge/discharge

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Date:   Mon, 12 Nov 2018 18:52:37 +0800
From:   Baolin Wang <baolin.wang@...aro.org>
To:     sre@...nel.org
Cc:     linux-pm@...r.kernel.org, linux-kernel@...r.kernel.org,
        yuanjiang.yu@...soc.com, baolin.wang@...aro.org, broonie@...nel.org
Subject: [PATCH 3/4] power: supply: sc2731_charger: Avoid repeated charge/discharge

Add info->charging validation to avoid repeated charge or discharge
operation.

Signed-off-by: Baolin Wang <baolin.wang@...aro.org>
---
 drivers/power/supply/sc2731_charger.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/power/supply/sc2731_charger.c b/drivers/power/supply/sc2731_charger.c
index a012d6c..49b3f0c 100644
--- a/drivers/power/supply/sc2731_charger.c
+++ b/drivers/power/supply/sc2731_charger.c
@@ -328,7 +328,7 @@ static void sc2731_charger_work(struct work_struct *data)
 
 	mutex_lock(&info->lock);
 
-	if (info->limit > 0) {
+	if (info->limit > 0 && !info->charging) {
 		/* set current limitation and start to charge */
 		ret = sc2731_charger_set_current_limit(info, info->limit);
 		if (ret)
@@ -343,7 +343,7 @@ static void sc2731_charger_work(struct work_struct *data)
 			goto out;
 
 		info->charging = true;
-	} else {
+	} else if (!info->limit && info->charging) {
 		/* Stop charging */
 		info->charging = false;
 		sc2731_charger_stop_charge(info);
-- 
1.7.9.5