diff options
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/supply/axp288_fuel_gauge.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/power/supply/axp288_fuel_gauge.c b/drivers/power/supply/axp288_fuel_gauge.c index fd8f0b2210bc..dabcf0c6ea95 100644 --- a/drivers/power/supply/axp288_fuel_gauge.c +++ b/drivers/power/supply/axp288_fuel_gauge.c @@ -754,10 +754,21 @@ static int axp288_fuel_gauge_probe(struct platform_device *pdev) [BAT_D_CURR] = "axp288-chrg-d-curr", [BAT_VOLT] = "axp288-batt-volt", }; + unsigned int val; if (dmi_check_system(axp288_fuel_gauge_blacklist)) return -ENODEV; + /* + * On some devices the fuelgauge and charger parts of the axp288 are + * not used, check that the fuelgauge is enabled (CC_CTRL != 0). + */ + ret = regmap_read(axp20x->regmap, AXP20X_CC_CTRL, &val); + if (ret < 0) + return ret; + if (val == 0) + return -ENODEV; + info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; |