Chagall & Transformer EC updates

drivers/input/keyboard/asus-ec-keys.c

@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * ASUS Transformer Pad - multimedia keys
- *
  */
 
 #include <linux/i2c.h>

drivers/input/serio/asus-ec-kbc.c

@@ -4,7 +4,6 @@
  *
  * This looks suspiciously similar to i8042, but wrapped in
  * I2C/SMBus packets.
- *
  */
 
 #include <linux/i2c.h>

drivers/leds/leds-asus-ec.c

@@ -71,7 +71,7 @@ static int asusec_led_probe(struct platform_device *pdev)
 	ret = devm_led_classdev_register(&pdev->dev, amber_led);
 	if (ret)
 		return dev_err_probe(&pdev->dev, ret,
-				     "can't register AMBER LED\n");
+				     "failed to register amber LED\n");
 
 	green_led = devm_kzalloc(&pdev->dev, sizeof(*green_led), GFP_KERNEL);
 	if (!green_led)
@@ -89,7 +89,7 @@ static int asusec_led_probe(struct platform_device *pdev)
 	ret = devm_led_classdev_register(&pdev->dev, green_led);
 	if (ret)
 		return dev_err_probe(&pdev->dev, ret,
-				     "can't register GREEN LED\n");
+				     "failed to register green LED\n");
 
 	return 0;
 }

drivers/misc/asus-dockram.c

@@ -1,7 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * ASUS EC: DockRAM
- *
  */
 
 #include <asm/unaligned.h>
@@ -189,7 +188,7 @@ static ssize_t control_reg_show(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	return snprintf(buf, PAGE_SIZE, "%016llx\n", val);
+	return sysfs_emit(buf, "%016llx\n", val);
 }
 
 static ssize_t control_reg_store(struct device *dev,

drivers/power/supply/asus-ec-battery.c

@@ -1,9 +1,9 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * ASUS EC driver - battery monitoring
- *
  */
 
+#include <linux/devm-helpers.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/of.h>
@@ -260,6 +260,7 @@ static int asusec_battery_probe(struct platform_device *pdev)
 	struct asusec_battery_data *priv;
 	struct asusec_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct power_supply_config cfg = {};
+	int ret;
 
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
@@ -292,22 +293,17 @@ static int asusec_battery_probe(struct platform_device *pdev)
 		dev_warn(&pdev->dev,
 			 "No monitored battery, some properties will be missing\n");
 
-	INIT_DELAYED_WORK(&priv->poll_work, asusec_battery_poll_work);
+	ret = devm_delayed_work_autocancel(&pdev->dev, &priv->poll_work,
+					   asusec_battery_poll_work);
+	if (ret)
+		return ret;
+
 	schedule_delayed_work(&priv->poll_work,
 			      msecs_to_jiffies(ASUSEC_BATTERY_DATA_FRESH_MSEC));
 
 	return 0;
 }
 
-static int asusec_battery_remove(struct platform_device *pdev)
-{
-	struct asusec_battery_data *priv = dev_get_drvdata(&pdev->dev);
-
-	cancel_delayed_work_sync(&priv->poll_work);
-
-	return 0;
-}
-
 static int __maybe_unused asusec_battery_suspend(struct device *dev)
 {
 	struct asusec_battery_data *priv = dev_get_drvdata(dev);
@@ -336,7 +332,6 @@ static struct platform_driver asusec_battery_driver = {
 		.pm = &asusec_battery_pm_ops,
 	},
 	.probe = asusec_battery_probe,
-	.remove = asusec_battery_remove,
 };
 module_platform_driver(asusec_battery_driver);
 

drivers/power/supply/asus-ec-charger.c

@@ -1,10 +1,10 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 /*
  * ASUS EC driver - charging monitoring
- *
  */
 
 #include <linux/delay.h>
+#include <linux/devm-helpers.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/of.h>
@@ -130,6 +130,7 @@ static int asusec_charger_probe(struct platform_device *pdev)
 	struct asusec_charger_data *priv;
 	struct asusec_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct power_supply_config cfg = {};
+	int ret;
 
 	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
@@ -164,22 +165,17 @@ static int asusec_charger_probe(struct platform_device *pdev)
 		return dev_err_probe(&pdev->dev, PTR_ERR(priv->charger),
 				     "Failed to register power supply\n");
 
-	INIT_DELAYED_WORK(&priv->poll_work, asusec_charger_poll_work);
+	ret = devm_delayed_work_autocancel(&pdev->dev, &priv->poll_work,
+					   asusec_charger_poll_work);
+	if (ret)
+		return ret;
+
 	schedule_delayed_work(&priv->poll_work,
 			      msecs_to_jiffies(ASUSEC_CHARGER_DELAY_MSEC));
 
 	return 0;
 }
 
-static int asusec_charger_remove(struct platform_device *pdev)
-{
-	struct asusec_charger_data *priv = dev_get_drvdata(&pdev->dev);
-
-	cancel_delayed_work_sync(&priv->poll_work);
-
-	return 0;
-}
-
 static int __maybe_unused asusec_charger_suspend(struct device *dev)
 {
 	struct asusec_charger_data *priv = dev_get_drvdata(dev);
@@ -208,7 +204,6 @@ static struct platform_driver asusec_charger_driver = {
 		.pm = &asusec_charger_pm_ops,
 	},
 	.probe = asusec_charger_probe,
-	.remove = asusec_charger_remove,
 };
 module_platform_driver(asusec_charger_driver);
 

drivers/power/supply/chagall-battery.c

@@ -4,6 +4,7 @@
  */
 
 #include <linux/delay.h>
+#include <linux/devm-helpers.h>
 #include <linux/err.h>
 #include <linux/i2c.h>
 #include <linux/leds.h>
@@ -318,11 +319,12 @@ static int chagall_battery_probe(struct i2c_client *client)
 
 	cg->battery = devm_power_supply_register(&client->dev, &chagall_battery_desc, &cfg);
 	if (IS_ERR(cg->battery))
-		return PTR_ERR(cg->battery);
+		return dev_err_probe(&client->dev, PTR_ERR(cg->battery),
+				     "failed to register power supply\n");
 
 	if (power_supply_get_battery_info(cg->battery, &cg->batt_info))
 		dev_warn(&client->dev,
-			 "No monitored battery, some properties will be missing\n");
+			 "no monitored battery, some properties will be missing\n");
 
 	cg->amber_led.name = "power::amber";
 	cg->amber_led.max_brightness = 1;
@@ -332,7 +334,7 @@ static int chagall_battery_probe(struct i2c_client *client)
 	ret = devm_led_classdev_register(&client->dev, &cg->amber_led);
 	if (ret)
 		return dev_err_probe(&client->dev, ret,
-				     "can't register AMBER LED\n");
+				     "failed to register amber LED\n");
 
 	cg->white_led.name = "power::white";
 	cg->white_led.max_brightness = 1;
@@ -342,27 +344,22 @@ static int chagall_battery_probe(struct i2c_client *client)
 	ret = devm_led_classdev_register(&client->dev, &cg->white_led);
 	if (ret)
 		return dev_err_probe(&client->dev, ret,
-				     "can't register WHITE LED\n");
+				     "failed to register white LED\n");
 
 	led_set_brightness(&cg->amber_led, LED_OFF);
 	led_set_brightness(&cg->white_led, LED_OFF);
 
-	INIT_DELAYED_WORK(&cg->poll_work, chagall_battery_poll_work);
+	ret = devm_delayed_work_autocancel(&client->dev, &cg->poll_work,
+					   chagall_battery_poll_work);
+	if (ret)
+		return ret;
+
 	schedule_delayed_work(&cg->poll_work,
 			      msecs_to_jiffies(CHAGALL_BATTERY_DATA_REFRESH));
 
 	return 0;
 }
 
-static int chagall_battery_remove(struct i2c_client *client)
-{
-	struct chagall_battery_data *cg = i2c_get_clientdata(client);
-
-	cancel_delayed_work_sync(&cg->poll_work);
-
-	return 0;
-}
-
 static int __maybe_unused chagall_battery_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
@@ -400,7 +397,6 @@ static struct i2c_driver chagall_battery_driver = {
 		.of_match_table = chagall_match,
 	},
 	.probe_new = chagall_battery_probe,
-	.remove = chagall_battery_remove,
 };
 module_i2c_driver(chagall_battery_driver);