Messages in this thread Patch in this message |  | | Date | Thu, 02 Apr 2020 16:58:34 +0200 | From | Michał Mirosław <> | Subject | [PATCH 11/14] power: supply: bq25890: show measured VBUS |
| |
Export VBUS measurement via INPUT_VOLTAGE_NOW property.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> --- drivers/power/supply/bq25890_charger.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+)
diff --git a/drivers/power/supply/bq25890_charger.c b/drivers/power/supply/bq25890_charger.c index 250468f3ff18..d23274d13263 100644 --- a/drivers/power/supply/bq25890_charger.c +++ b/drivers/power/supply/bq25890_charger.c @@ -506,6 +506,24 @@ static int bq25890_power_supply_get_property(struct power_supply *psy, val->intval = bq25890_find_val(ret, TBL_IILIM); break; + case POWER_SUPPLY_PROP_INPUT_VOLTAGE_NOW: + ret = bq25890_field_read(bq, F_VBUS_GD); /* is VBUS connected? */ + if (ret < 0) + return ret; + + if (!ret) { + val->intval = 0; + break; + } + + ret = bq25890_field_read(bq, F_VBUSV); /* read measured value */ + if (ret < 0) + return ret; + + /* converted_val = 2.6V + ADC_val * 100mV */ + val->intval = 2600000 + ret * 100000; + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: ret = bq25890_field_read(bq, F_SYSV); /* read measured value */ if (ret < 0) @@ -705,6 +723,7 @@ static const enum power_supply_property bq25890_power_supply_props[] = { POWER_SUPPLY_PROP_PRECHARGE_CURRENT, POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT, POWER_SUPPLY_PROP_INPUT_CURRENT_LIMIT, + POWER_SUPPLY_PROP_INPUT_VOLTAGE_NOW, POWER_SUPPLY_PROP_VOLTAGE_NOW, POWER_SUPPLY_PROP_CURRENT_NOW, }; -- 2.20.1
|  |