Merge tag 'for-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:
 - bq27xxx: Add BQ27426 support
 - ab8500: Drop AB8540/9540 support
 - Introduced new usb_type property
 - Properly document the power-supply ABI
 - misc. cleanups and fixes

* tag 'for-v4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
  MAINTAINERS: add entry for LEGO MINDSTORMS EV3
  power: supply: ab8500_charger: fix spelling mistake: "faile" -> "failed"
  power: supply: axp288_fuel_gauge: Remove polling from the driver
  power: supply: axp288_fuelguage: Do not bind when the fg function is not used
  power: supply: axp288_charger: Do not bind when the charge function is not used
  power: supply: axp288_charger: Support 3500 and 4000 mA input current limit
  power: supply: s3c-adc-battery: fix driver data initialization
  power: supply: charger-manager: Verify polling interval only when polling requested
  power: supply: sysfs: Use enum to specify property
  power: supply: ab8500: Drop AB8540/9540 support
  power: supply: ab8500_fg: fix spelling mistake: "Disharge" -> "Discharge"
  power: supply: simplify getting .drvdata
  power: supply: bq27xxx: Add support for BQ27426
  gpio-poweroff: Use gpiod_set_value_cansleep

1 files changed, 11 insertions, 16 deletions

diff --git a/drivers/power/supply/axp288_fuel_gauge.c b/drivers/power/supply/axp288_fuel_gauge.c
index fd8f0b2210bc..084c8ba9749d 100644
--- a/drivers/power/supply/axp288_fuel_gauge.c
+++ b/drivers/power/supply/axp288_fuel_gauge.c
@@ -24,7 +24,6 @@
 #include <linux/regmap.h>
 #include <linux/jiffies.h>
 #include <linux/interrupt.h>
-#include <linux/workqueue.h>
 #include <linux/mfd/axp20x.h>
 #include <linux/platform_device.h>
 #include <linux/power_supply.h>
@@ -88,7 +87,6 @@
 #define FG_LOW_CAP_CRIT_THR			4   /* 4 perc */
 #define FG_LOW_CAP_SHDN_THR			0   /* 0 perc */
 
-#define STATUS_MON_DELAY_JIFFIES    (HZ * 60)   /*60 sec */
 #define NR_RETRY_CNT    3
 #define DEV_NAME	"axp288_fuel_gauge"
 
@@ -128,7 +126,6 @@ struct axp288_fg_info {
 	struct mutex lock;
 	int status;
 	int max_volt;
-	struct delayed_work status_monitor;
 	struct dentry *debug_file;
 };
 
@@ -592,16 +589,6 @@ static int fuel_gauge_property_is_writeable(struct power_supply *psy,
 	return ret;
 }
 
-static void fuel_gauge_status_monitor(struct work_struct *work)
-{
-	struct axp288_fg_info *info = container_of(work,
-		struct axp288_fg_info, status_monitor.work);
-
-	fuel_gauge_get_status(info);
-	power_supply_changed(info->bat);
-	schedule_delayed_work(&info->status_monitor, STATUS_MON_DELAY_JIFFIES);
-}
-
 static irqreturn_t fuel_gauge_thread_handler(int irq, void *dev)
 {
 	struct axp288_fg_info *info = dev;
@@ -754,10 +741,21 @@ static int axp288_fuel_gauge_probe(struct platform_device *pdev)
 		[BAT_D_CURR] = "axp288-chrg-d-curr",
 		[BAT_VOLT] = "axp288-batt-volt",
 	};
+	unsigned int val;
 
 	if (dmi_check_system(axp288_fuel_gauge_blacklist))
 		return -ENODEV;
 
+	/*
+	 * On some devices the fuelgauge and charger parts of the axp288 are
+	 * not used, check that the fuelgauge is enabled (CC_CTRL != 0).
+	 */
+	ret = regmap_read(axp20x->regmap, AXP20X_CC_CTRL, &val);
+	if (ret < 0)
+		return ret;
+	if (val == 0)
+		return -ENODEV;
+
 	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
@@ -770,7 +768,6 @@ static int axp288_fuel_gauge_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, info);
 
 	mutex_init(&info->lock);
-	INIT_DELAYED_WORK(&info->status_monitor, fuel_gauge_status_monitor);
 
 	for (i = 0; i < IIO_CHANNEL_NUM; i++) {
 		/*
@@ -830,7 +827,6 @@ static int axp288_fuel_gauge_probe(struct platform_device *pdev)
 
 	fuel_gauge_create_debugfs(info);
 	fuel_gauge_init_irq(info);
-	schedule_delayed_work(&info->status_monitor, STATUS_MON_DELAY_JIFFIES);
 
 	return 0;
 
@@ -853,7 +849,6 @@ static int axp288_fuel_gauge_remove(struct platform_device *pdev)
 	struct axp288_fg_info *info = platform_get_drvdata(pdev);
 	int i;
 
-	cancel_delayed_work_sync(&info->status_monitor);
 	power_supply_unregister(info->bat);
 	fuel_gauge_remove_debugfs(info);