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-rw-r--r--drivers/power/bq24257_charger.c43
1 files changed, 43 insertions, 0 deletions
diff --git a/drivers/power/bq24257_charger.c b/drivers/power/bq24257_charger.c
index b617c3a20652..ebb22f3be487 100644
--- a/drivers/power/bq24257_charger.c
+++ b/drivers/power/bq24257_charger.c
@@ -79,6 +79,7 @@ struct bq24257_init_data {
u8 iterm; /* termination current */
u8 iilimit; /* input current limit */
u8 vovp; /* over voltage protection voltage */
+ u8 vindpm; /* VDMP input threshold voltage */
};
struct bq24257_state {
@@ -208,6 +209,13 @@ static const u32 bq24257_vovp_map[] = {
#define BQ24257_VOVP_MAP_SIZE ARRAY_SIZE(bq24257_vovp_map)
+static const u32 bq24257_vindpm_map[] = {
+ 4200000, 4280000, 4360000, 4440000, 4520000, 4600000, 4680000,
+ 4760000
+};
+
+#define BQ24257_VINDPM_MAP_SIZE ARRAY_SIZE(bq24257_vindpm_map)
+
static int bq24257_field_read(struct bq24257_device *bq,
enum bq24257_fields field_id)
{
@@ -434,6 +442,17 @@ enum bq24257_vovp {
VOVP_10500
};
+enum bq24257_vindpm {
+ VINDPM_4200,
+ VINDPM_4280,
+ VINDPM_4360,
+ VINDPM_4440,
+ VINDPM_4520,
+ VINDPM_4600,
+ VINDPM_4680,
+ VINDPM_4760
+};
+
enum bq24257_port_type {
PORT_TYPE_DCP, /* Dedicated Charging Port */
PORT_TYPE_CDP, /* Charging Downstream Port */
@@ -607,6 +626,7 @@ static int bq24257_hw_init(struct bq24257_device *bq)
{F_VBAT, bq->init_data.vbat},
{F_ITERM, bq->init_data.iterm},
{F_VOVP, bq->init_data.vovp},
+ {F_VINDPM, bq->init_data.vindpm},
};
/*
@@ -687,10 +707,23 @@ static ssize_t bq24257_show_ovp_voltage(struct device *dev,
bq24257_vovp_map[bq->init_data.vovp]);
}
+static ssize_t bq24257_show_in_dpm_voltage(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct power_supply *psy = dev_get_drvdata(dev);
+ struct bq24257_device *bq = power_supply_get_drvdata(psy);
+
+ return scnprintf(buf, PAGE_SIZE, "%u\n",
+ bq24257_vindpm_map[bq->init_data.vindpm]);
+}
+
static DEVICE_ATTR(ovp_voltage, S_IRUGO, bq24257_show_ovp_voltage, NULL);
+static DEVICE_ATTR(in_dpm_voltage, S_IRUGO, bq24257_show_in_dpm_voltage, NULL);
static struct attribute *bq24257_charger_attr[] = {
&dev_attr_ovp_voltage.attr,
+ &dev_attr_in_dpm_voltage.attr,
NULL,
};
@@ -785,6 +818,16 @@ static int bq24257_fw_probe(struct bq24257_device *bq)
bq24257_vovp_map,
BQ24257_VOVP_MAP_SIZE);
+ ret = device_property_read_u32(bq->dev, "ti,in-dpm-voltage",
+ &property);
+ if (ret < 0)
+ bq->init_data.vindpm = VINDPM_4360;
+ else
+ bq->init_data.vindpm =
+ bq24257_find_idx(property,
+ bq24257_vindpm_map,
+ BQ24257_VINDPM_MAP_SIZE);
+
return 0;
}
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