The axp288_fuelgauge driver and some other axp288_xxx are using a number of the registers of the chip that are changed by hardware (for example charge level). Because these registers are not marked as "volatile" in the regmap, a cached version is used instead of the correct register value. In case of the axp288_fuelgauge that leads to a battery level that only changes on reboot. This patch adds the volatile registers of the chip.
Signed-off-by: Christian Mauderer <[email protected]> --- drivers/mfd/axp20x.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/mfd/axp20x.c b/drivers/mfd/axp20x.c index ed918de84238..d74b3daca23f 100644 --- a/drivers/mfd/axp20x.c +++ b/drivers/mfd/axp20x.c @@ -118,7 +118,10 @@ static const struct regmap_range axp288_writeable_ranges[] = { }; static const struct regmap_range axp288_volatile_ranges[] = { + regmap_reg_range(AXP20X_PWR_INPUT_STATUS, AXP20X_PWR_OP_MODE), regmap_reg_range(AXP20X_IRQ1_EN, AXP20X_IPSOUT_V_HIGH_L), + regmap_reg_range(AXP20X_CC_CTRL, AXP288_FG_OCVL_REG), + regmap_reg_range(AXP288_FG_DES_CAP1_REG, AXP288_FG_CC_CAP_REG), }; static const struct regmap_access_table axp288_writeable_table = { -- 2.11.0
