This is a note to let you know that I've just added the patch titled
power: supply: bq24190_charger: Fix bq24190_vbus_is_enabled() wrong false return
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
power-supply-bq24190_charger-fix-bq24190_vbus_is_ena.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit b3c8798946efc240182c21cb5570ea3dfe5f8193
Author: Hans de Goede <hdegoede@xxxxxxxxxx>
Date: Sat Feb 12 17:48:16 2022 +0100
power: supply: bq24190_charger: Fix bq24190_vbus_is_enabled() wrong false return
[ Upstream commit f7731754fdce33dad19be746f647d6ac47c5d695 ]
The datasheet says that the BQ24190_REG_POC_CHG_CONFIG bits can
have a value of either 10(0x2) or 11(0x3) for OTG (5V boost regulator)
mode.
Sofar bq24190_vbus_is_enabled() was only checking for 10 but some BIOS-es
uses 11 when enabling the regulator at boot.
Make bq24190_vbus_is_enabled() also check for 11 so that it does not
wrongly returns false when the bits are set to 11.
Fixes: 66b6bef2c4e0 ("power: supply: bq24190_charger: Export 5V boost converter as regulator")
Cc: Bastien Nocera <hadess@xxxxxxxxxx>
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/power/supply/bq24190_charger.c b/drivers/power/supply/bq24190_charger.c
index 35ff0c8fe96f..16c4876fe5af 100644
--- a/drivers/power/supply/bq24190_charger.c
+++ b/drivers/power/supply/bq24190_charger.c
@@ -39,6 +39,7 @@
#define BQ24190_REG_POC_CHG_CONFIG_DISABLE 0x0
#define BQ24190_REG_POC_CHG_CONFIG_CHARGE 0x1
#define BQ24190_REG_POC_CHG_CONFIG_OTG 0x2
+#define BQ24190_REG_POC_CHG_CONFIG_OTG_ALT 0x3
#define BQ24190_REG_POC_SYS_MIN_MASK (BIT(3) | BIT(2) | BIT(1))
#define BQ24190_REG_POC_SYS_MIN_SHIFT 1
#define BQ24190_REG_POC_SYS_MIN_MIN 3000
@@ -550,7 +551,11 @@ static int bq24190_vbus_is_enabled(struct regulator_dev *dev)
pm_runtime_mark_last_busy(bdi->dev);
pm_runtime_put_autosuspend(bdi->dev);
- return ret ? ret : val == BQ24190_REG_POC_CHG_CONFIG_OTG;
+ if (ret)
+ return ret;
+
+ return (val == BQ24190_REG_POC_CHG_CONFIG_OTG ||
+ val == BQ24190_REG_POC_CHG_CONFIG_OTG_ALT);
}
static const struct regulator_ops bq24190_vbus_ops = {
