From: Hans de Goede <hdegoede@xxxxxxxxxx>
commit b34ce4a59cfe9cd0d6f870e6408e8ec88a964585 upstream.
info->max_cv is in millivolts, divide the microvolt value being written
to constant_charge_voltage by 1000 *before* clamping it to info->max_cv.
Before this fix the code always tried to set constant_charge_voltage
to max_cv / 1000 = 4 millivolt, which ends up in setting it to 4.1V
which is the lowest supported value.
Fixes: 843735b788a4 ("power: axp288_charger: axp288 charger driver")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Hans de Goede <hdegoede@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240717200333.56669-1-hdegoede@xxxxxxxxxx
Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/power/supply/axp288_charger.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/power/supply/axp288_charger.c
+++ b/drivers/power/supply/axp288_charger.c
@@ -378,8 +378,8 @@ static int axp288_charger_usb_set_proper
dev_warn(&info->pdev->dev, "set charge current failed\n");
break;
case POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE:
- scaled_val = min(val->intval, info->max_cv);
- scaled_val = DIV_ROUND_CLOSEST(scaled_val, 1000);
+ scaled_val = DIV_ROUND_CLOSEST(val->intval, 1000);
+ scaled_val = min(scaled_val, info->max_cv);
ret = axp288_charger_set_cv(info, scaled_val);
if (ret < 0)
dev_warn(&info->pdev->dev, "set charge voltage failed\n");
Patches currently in stable-queue which might be from hdegoede@xxxxxxxxxx are
queue-4.19/power-supply-axp288_charger-round-constant_charge_voltage-writes-down.patch
queue-4.19/power-supply-axp288_charger-fix-constant_charge_voltage-writes.patch
queue-4.19/leds-trigger-unregister-sysfs-attributes-before-call.patch
