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path: root/drivers/power/supply/axp288_charger.c
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Diffstat (limited to 'drivers/power/supply/axp288_charger.c')
-rw-r--r--drivers/power/supply/axp288_charger.c26
1 files changed, 23 insertions, 3 deletions
diff --git a/drivers/power/supply/axp288_charger.c b/drivers/power/supply/axp288_charger.c
index 9bfbde15b07d..6e1bc14c3304 100644
--- a/drivers/power/supply/axp288_charger.c
+++ b/drivers/power/supply/axp288_charger.c
@@ -88,6 +88,8 @@
#define CHRG_VBUS_ILIM_2000MA 0x4 /* 2000mA */
#define CHRG_VBUS_ILIM_2500MA 0x5 /* 2500mA */
#define CHRG_VBUS_ILIM_3000MA 0x6 /* 3000mA */
+#define CHRG_VBUS_ILIM_3500MA 0x7 /* 3500mA */
+#define CHRG_VBUS_ILIM_4000MA 0x8 /* 4000mA */
#define CHRG_VLTFC_0C 0xA5 /* 0 DegC */
#define CHRG_VHTFC_45C 0x1F /* 45 DegC */
@@ -223,9 +225,11 @@ static int axp288_charger_get_vbus_inlmt(struct axp288_chrg_info *info)
return 2500000;
case CHRG_VBUS_ILIM_3000MA:
return 3000000;
+ case CHRG_VBUS_ILIM_3500MA:
+ return 3500000;
default:
- dev_warn(&info->pdev->dev, "Unknown ilim reg val: %d\n", val);
- return 0;
+ /* All b1xxx values map to 4000 mA */
+ return 4000000;
}
}
@@ -235,7 +239,11 @@ static inline int axp288_charger_set_vbus_inlmt(struct axp288_chrg_info *info,
int ret;
u8 reg_val;
- if (inlmt >= 3000000)
+ if (inlmt >= 4000000)
+ reg_val = CHRG_VBUS_ILIM_4000MA << CHRG_VBUS_ILIM_BIT_POS;
+ else if (inlmt >= 3500000)
+ reg_val = CHRG_VBUS_ILIM_3500MA << CHRG_VBUS_ILIM_BIT_POS;
+ else if (inlmt >= 3000000)
reg_val = CHRG_VBUS_ILIM_3000MA << CHRG_VBUS_ILIM_BIT_POS;
else if (inlmt >= 2500000)
reg_val = CHRG_VBUS_ILIM_2500MA << CHRG_VBUS_ILIM_BIT_POS;
@@ -739,6 +747,18 @@ static int axp288_charger_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
struct power_supply_config charger_cfg = {};
+ unsigned int val;
+
+ /*
+ * 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;