[PATCH v3 3/3] hwmon: (emc1403) Add regulator support

[Svyatoslav Ryhel]

Add support for VDD power supply for this sensor. It is required on some
devices for the sensor to start up and work properly.

Signed-off-by: Svyatoslav Ryhel <clamor95@xxxxxxxxx>
Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
 drivers/hwmon/emc1403.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c
index b7ab6069ec7b1..5a472760f8d80 100644
--- a/drivers/hwmon/emc1403.c
+++ b/drivers/hwmon/emc1403.c
@@ -19,6 +19,7 @@
 #include <linux/mod_devicetable.h>
 #include <linux/sysfs.h>
 #include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
 #include <linux/util_macros.h>
 
 #define THERMAL_PID_REG		0xfd
@@ -660,6 +661,12 @@ static int emc1403_probe(struct i2c_client *client)
 {
 	struct thermal_data *data;
 	struct device *hwmon_dev;
+	int ret;
+
+	ret = devm_regulator_get_enable(&client->dev, "vdd");
+	if (ret)
+		return dev_err_probe(&client->dev, ret,
+				     "Failed to enable regulator\n");
 
 	data = devm_kzalloc(&client->dev, sizeof(struct thermal_data),
 			    GFP_KERNEL);
-- 
2.53.0