4.19-stable review patch. If anyone has any objections, please let me know.
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From: Hans de Goede hdegoede@redhat.com
commit 81af7f2342d162e24ac820c10e68684d9f927663 upstream.
Round constant_charge_voltage writes down to the first supported lower value, rather then rounding them up to the first supported higher value.
This fixes e.g. writing 4250000 resulting in a value of 4350000 which might be dangerous, instead writing 4250000 will now result in a safe 4200000 value.
Fixes: 843735b788a4 ("power: axp288_charger: axp288 charger driver") Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede hdegoede@redhat.com Link: https://lore.kernel.org/r/20240717200333.56669-2-hdegoede@redhat.com Signed-off-by: Sebastian Reichel sebastian.reichel@collabora.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/power/supply/axp288_charger.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-)
--- a/drivers/power/supply/axp288_charger.c +++ b/drivers/power/supply/axp288_charger.c @@ -175,18 +175,18 @@ static inline int axp288_charger_set_cv( u8 reg_val; int ret;
- if (cv <= CV_4100MV) { - reg_val = CHRG_CCCV_CV_4100MV; - cv = CV_4100MV; - } else if (cv <= CV_4150MV) { - reg_val = CHRG_CCCV_CV_4150MV; - cv = CV_4150MV; - } else if (cv <= CV_4200MV) { + if (cv >= CV_4350MV) { + reg_val = CHRG_CCCV_CV_4350MV; + cv = CV_4350MV; + } else if (cv >= CV_4200MV) { reg_val = CHRG_CCCV_CV_4200MV; cv = CV_4200MV; + } else if (cv >= CV_4150MV) { + reg_val = CHRG_CCCV_CV_4150MV; + cv = CV_4150MV; } else { - reg_val = CHRG_CCCV_CV_4350MV; - cv = CV_4350MV; + reg_val = CHRG_CCCV_CV_4100MV; + cv = CV_4100MV; }
reg_val = reg_val << CHRG_CCCV_CV_BIT_POS;