hwmon: (ina2xx) give precedence to DT over checking for platform data.

when checking for the value of the shunt resistor.

Signed-off-by: Marc Titinger <mtitinger@baylibre.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c
index 96862c6..1ba0c72 100644 (file)
--- a/drivers/hwmon/ina2xx.c
+++ b/drivers/hwmon/ina2xx.c
@@ -420,7 +420,6 @@ static const struct attribute_group ina226_group = {
 static int ina2xx_probe(struct i2c_client *client,
                        const struct i2c_device_id *id)
 {
-       struct ina2xx_platform_data *pdata;
        struct device *dev = &client->dev;
        struct ina2xx_data *data;
        struct device *hwmon_dev;
@@ -431,24 +430,24 @@ static int ina2xx_probe(struct i2c_client *client,
        if (!data)
                return -ENOMEM;
 
-       if (dev_get_platdata(dev)) {
-               pdata = dev_get_platdata(dev);
-               data->rshunt = pdata->shunt_uohms;
-       } else if (!of_property_read_u32(dev->of_node,
-                                        "shunt-resistor", &val)) {
-               data->rshunt = val;
-       } else {
-               data->rshunt = INA2XX_RSHUNT_DEFAULT;
-       }
-
        /* set the device type */
        data->kind = id->driver_data;
        data->config = &ina2xx_config[data->kind];
 
-       if (data->rshunt <= 0 ||
-           data->rshunt > data->config->calibration_factor)
+       if (of_property_read_u32(dev->of_node, "shunt-resistor", &val) < 0) {
+               struct ina2xx_platform_data *pdata = dev_get_platdata(dev);
+
+               if (pdata)
+                       val = pdata->shunt_uohms;
+               else
+                       val = INA2XX_RSHUNT_DEFAULT;
+       }
+
+       if (val <= 0 || val > data->config->calibration_factor)
                return -ENODEV;
 
+       data->rshunt = val;
+
        ina2xx_regmap_config.max_register = data->config->registers;
 
        data->regmap = devm_regmap_init_i2c(client, &ina2xx_regmap_config);