diff options
Diffstat (limited to 'drivers/power/bq24257_charger.c')
| -rw-r--r-- | drivers/power/bq24257_charger.c | 43 |
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; } |