@@ -1106,6 +1106,20 @@ static int bq25890_vbus_get_voltage(struct regulator_dev *rdev)
return bq25890_get_vbus_voltage(bq);
}
+static int bq25890_vsys_get_voltage(struct regulator_dev *rdev)
+{
+ struct bq25890_device *bq = rdev_get_drvdata(rdev);
+ int ret;
+
+ /* Should be some output voltage ? */
+ ret = bq25890_field_read(bq, F_SYSV); /* read measured value */
+ if (ret < 0)
+ return ret;
+
+ /* converted_val = 2.304V + ADC_val * 20mV (table 10.3.15) */
+ return 2304000 + ret * 20000;
+}
+
static const struct regulator_ops bq25890_vbus_ops = {
.get_voltage = bq25890_vbus_get_voltage,
};
@@ -1133,6 +1147,18 @@ static const struct regulator_desc bq25890_vbus_boost_desc = {
.ops = &bq25890_vbus_boost_ops,
};
+static const struct regulator_ops bq25890_vsys_ops = {
+ .get_voltage = bq25890_vsys_get_voltage,
+};
+
+static const struct regulator_desc bq25890_vsys_desc = {
+ .name = "vsys",
+ .of_match = "vsys",
+ .type = REGULATOR_VOLTAGE,
+ .owner = THIS_MODULE,
+ .ops = &bq25890_vsys_ops,
+};
+
static int bq25890_register_regulator(struct bq25890_device *bq)
{
struct bq25890_platform_data *pdata = dev_get_platdata(bq->dev);
@@ -1155,6 +1181,12 @@ static int bq25890_register_regulator(struct bq25890_device *bq)
"registering vbus regulator");
}
+ reg = devm_regulator_register(bq->dev, &bq25890_vsys_desc, &cfg);
+ if (IS_ERR(reg)) {
+ return dev_err_probe(bq->dev, PTR_ERR(reg),
+ "registering vsys regulator");
+ }
+
return 0;
}
#else
The chip is capable of reporting Vsys voltage supplied to the system. Add regulator which represents the Vsys supply. This can be used e.g. as a supply for system PMIC input. Signed-off-by: Marek Vasut <marex@denx.de> --- Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Michał Mirosław <mirq-linux@rere.qmqm.pl> Cc: Sebastian Reichel <sebastian.reichel@collabora.com> To: linux-pm@vger.kernel.org --- drivers/power/supply/bq25890_charger.c | 32 ++++++++++++++++++++++++++ 1 file changed, 32 insertions(+)