diff mbox series

[1/2] power: supply: axp288_charger: Fix constant_charge_voltage writes

Message ID 20240717200333.56669-1-hdegoede@redhat.com
State Accepted
Commit b34ce4a59cfe9cd0d6f870e6408e8ec88a964585
Headers show
Series [1/2] power: supply: axp288_charger: Fix constant_charge_voltage writes | expand

Commit Message

Hans de Goede July 17, 2024, 8:03 p.m. UTC
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@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 drivers/power/supply/axp288_charger.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Comments

Sebastian Reichel July 26, 2024, 10:39 p.m. UTC | #1
On Wed, 17 Jul 2024 22:03:32 +0200, Hans de Goede wrote:
> 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.
> 
> [...]

Applied, thanks!

[1/2] power: supply: axp288_charger: Fix constant_charge_voltage writes
      commit: b34ce4a59cfe9cd0d6f870e6408e8ec88a964585
[2/2] power: supply: axp288_charger: Round constant_charge_voltage writes down
      commit: 81af7f2342d162e24ac820c10e68684d9f927663

Best regards,
diff mbox series

Patch

diff --git a/drivers/power/supply/axp288_charger.c b/drivers/power/supply/axp288_charger.c
index b5903193e2f9..aea17289a178 100644
--- a/drivers/power/supply/axp288_charger.c
+++ b/drivers/power/supply/axp288_charger.c
@@ -337,8 +337,8 @@  static int axp288_charger_usb_set_property(struct power_supply *psy,
 		}
 		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");