linux-kernel - [PATCH 3/3] power: supply: max8997

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Message-ID: <20210130172747.2022977-4-timon.baetz@protonmail.com>
Date:   Sat, 30 Jan 2021 17:30:14 +0000
From:   Timon Baetz <timon.baetz@...tonmail.com>
To:     Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sebastian Reichel <sre@...nel.org>
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, linux-pm@...r.kernel.org,
        Timon Baetz <timon.baetz@...tonmail.com>
Subject: [PATCH 3/3] power: supply: max8997_charger: Switch to new binding

Get regulator from parent device's node and extcon by name.

Signed-off-by: Timon Baetz <timon.baetz@...tonmail.com>
---
 drivers/power/supply/max8997_charger.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/power/supply/max8997_charger.c b/drivers/power/supply/max8997_charger.c
index 321bd6b8ee41..625d8cc4312a 100644
--- a/drivers/power/supply/max8997_charger.c
+++ b/drivers/power/supply/max8997_charger.c
@@ -168,6 +168,7 @@ static int max8997_battery_probe(struct platform_device *pdev)
 	int ret = 0;
 	struct charger_data *charger;
 	struct max8997_dev *iodev = dev_get_drvdata(pdev->dev.parent);
+	struct device_node *np = pdev->dev.of_node;
 	struct i2c_client *i2c = iodev->i2c;
 	struct max8997_platform_data *pdata = iodev->pdata;
 	struct power_supply_config psy_cfg = {};
@@ -237,20 +238,23 @@ static int max8997_battery_probe(struct platform_device *pdev)
 		return PTR_ERR(charger->battery);
 	}
 
+	// grab regulator from parent device's node
+	pdev->dev.of_node = iodev->dev->of_node;
 	charger->reg = devm_regulator_get_optional(&pdev->dev, "charger");
+	pdev->dev.of_node = np;
 	if (IS_ERR(charger->reg)) {
 		if (PTR_ERR(charger->reg) == -EPROBE_DEFER)
 			return -EPROBE_DEFER;
 		dev_info(&pdev->dev, "couldn't get charger regulator\n");
 	}
-	charger->edev = extcon_get_edev_by_phandle(&pdev->dev, 0);
-	if (IS_ERR(charger->edev)) {
-		if (PTR_ERR(charger->edev) == -EPROBE_DEFER)
+	charger->edev = extcon_get_extcon_dev("max8997-muic");
+	if (IS_ERR_OR_NULL(charger->edev)) {
+		if (!charger->edev)
 			return -EPROBE_DEFER;
 		dev_info(charger->dev, "couldn't get extcon device\n");
 	}
 
-	if (!IS_ERR(charger->reg) && !IS_ERR(charger->edev)) {
+	if (!IS_ERR(charger->reg) && !IS_ERR_OR_NULL(charger->edev)) {
 		INIT_WORK(&charger->extcon_work, max8997_battery_extcon_evt_worker);
 		ret = devm_add_action(&pdev->dev, max8997_battery_extcon_evt_stop_work, charger);
 		if (ret) {
-- 
2.25.1