hwmon: ina2xx: add optional regulator support

TI ina2xx sensors according to datasheets have dedicated
vs supplies. Add it for proper work.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
Link: https://lore.kernel.org/r/20230407160508.20479-3-clamor95@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c
index 00fc703..fd50d97 100644 (file)
--- a/drivers/hwmon/ina2xx.c
+++ b/drivers/hwmon/ina2xx.c
@@ -656,6 +656,10 @@ static int ina2xx_probe(struct i2c_client *client)
                return PTR_ERR(data->regmap);
        }
 
+       ret = devm_regulator_get_enable(dev, "vs");
+       if (ret)
+               return dev_err_probe(dev, ret, "failed to enable vs regulator\n");
+
        ret = ina2xx_init(data);
        if (ret < 0) {
                dev_err(dev, "error configuring the device: %d\n", ret);