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authorMarc Titinger <mtitinger@baylibre.com>2015-10-27 10:51:08 +0100
committerGuenter Roeck <linux@roeck-us.net>2015-10-28 21:53:15 -0700
commit001e2e730ce4e6dc2cd97fcb169097febfc7b200 (patch)
treeb35a1685846d33889e454f81541a377edaeb77e7 /drivers/hwmon/ina2xx.c
parenta0de56c81fcf9f1a691e22e519b0dff21c48c645 (diff)
downloadlinux-001e2e730ce4e6dc2cd97fcb169097febfc7b200.tar.bz2
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>
Diffstat (limited to 'drivers/hwmon/ina2xx.c')
-rw-r--r--drivers/hwmon/ina2xx.c25
1 files changed, 12 insertions, 13 deletions
diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c
index 96862c6eae74..1ba0c72c2b8f 100644
--- 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);