hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

hwmon: (ntc_thermistor) Use dev instead of &pdev->dev where possible 

Instead of repeatedly accessing &pdev->dev, use a local variable dev
instead where possible. Also drop 'dev' from private data since it is
unnecessary.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Guenter Roeck 2016-07-25 13:37:56 -07:00
parent 6402085676
commit 48001525c9
1 changed files with 25 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
drivers/hwmon/ntc_thermistor.c
View File

@ -256,7 +256,6 @@ struct ntc_data {
struct device *hwmon_dev;
struct ntc_thermistor_platform_data *pdata;
const struct ntc_compensation *comp;
struct device *dev;
int n_comp;
char name[PLATFORM_NAME_SIZE];
};
@ -316,22 +315,22 @@ static const struct of_device_id ntc_match[] = {
MODULE_DEVICE_TABLE(of, ntc_match);
static struct ntc_thermistor_platform_data *
ntc_thermistor_parse_dt(struct platform_device *pdev)
ntc_thermistor_parse_dt(struct device *dev)
{
struct iio_channel *chan;
enum iio_chan_type type;
struct device_node *np = pdev->dev.of_node;
struct device_node *np = dev->of_node;
struct ntc_thermistor_platform_data *pdata;
int ret;
if (!np)
return NULL;
pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
if (!pdata)
return ERR_PTR(-ENOMEM);
chan = devm_iio_channel_get(&pdev->dev, NULL);
chan = devm_iio_channel_get(dev, NULL);
if (IS_ERR(chan))
return ERR_CAST(chan);
@ -361,7 +360,7 @@ ntc_thermistor_parse_dt(struct platform_device *pdev)
}
#else
static struct ntc_thermistor_platform_data *
ntc_thermistor_parse_dt(struct platform_device *pdev)
ntc_thermistor_parse_dt(struct device *dev)
{
return NULL;
}
@ -572,33 +571,34 @@ static const struct thermal_zone_of_device_ops ntc_of_thermal_ops = {
static int ntc_thermistor_probe(struct platform_device *pdev)
{
struct thermal_zone_device *tz;
struct device *dev = &pdev->dev;
const struct of_device_id *of_id =
of_match_device(of_match_ptr(ntc_match), &pdev->dev);
of_match_device(of_match_ptr(ntc_match), dev);
const struct platform_device_id *pdev_id;
struct ntc_thermistor_platform_data *pdata;
struct ntc_data *data;
int ret;
pdata = ntc_thermistor_parse_dt(pdev);
pdata = ntc_thermistor_parse_dt(dev);
if (IS_ERR(pdata))
return PTR_ERR(pdata);
else if (pdata == NULL)
pdata = dev_get_platdata(&pdev->dev);
pdata = dev_get_platdata(dev);
if (!pdata) {
dev_err(&pdev->dev, "No platform init data supplied.\n");
dev_err(dev, "No platform init data supplied.\n");
return -ENODEV;
}
/* Either one of the two is required. */
if (!pdata->read_uv && !pdata->read_ohm) {
dev_err(&pdev->dev,
dev_err(dev,
"Both read_uv and read_ohm missing. Need either one of the two.\n");
return -EINVAL;
}
if (pdata->read_uv && pdata->read_ohm) {
dev_warn(&pdev->dev,
dev_warn(dev,
"Only one of read_uv and read_ohm is needed; ignoring read_uv.\n");
pdata->read_uv = NULL;
}
@ -610,18 +610,16 @@ static int ntc_thermistor_probe(struct platform_device *pdev)
NTC_CONNECTED_POSITIVE) ||
(pdata->connect != NTC_CONNECTED_POSITIVE &&
pdata->connect != NTC_CONNECTED_GROUND))) {
dev_err(&pdev->dev,
"Required data to use read_uv not supplied.\n");
dev_err(dev, "Required data to use read_uv not supplied.\n");
return -EINVAL;
}
data = devm_kzalloc(&pdev->dev, sizeof(struct ntc_data), GFP_KERNEL);
data = devm_kzalloc(dev, sizeof(struct ntc_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
pdev_id = of_id ? of_id->data : platform_get_device_id(pdev);
data->dev = &pdev->dev;
data->pdata = pdata;
strlcpy(data->name, pdev_id->name, sizeof(data->name));
@ -647,37 +645,37 @@ static int ntc_thermistor_probe(struct platform_device *pdev)
data->n_comp = ARRAY_SIZE(ncpXXxh103);
break;
default:
dev_err(&pdev->dev, "Unknown device type: %lu(%s)\n",
dev_err(dev, "Unknown device type: %lu(%s)\n",
pdev_id->driver_data, pdev_id->name);
return -EINVAL;
}
platform_set_drvdata(pdev, data);
ret = sysfs_create_group(&data->dev->kobj, &ntc_attr_group);
ret = sysfs_create_group(&dev->kobj, &ntc_attr_group);
if (ret) {
dev_err(data->dev, "unable to create sysfs files\n");
dev_err(dev, "unable to create sysfs files\n");
return ret;
}
data->hwmon_dev = hwmon_device_register(data->dev);
data->hwmon_dev = hwmon_device_register(dev);
if (IS_ERR(data->hwmon_dev)) {
dev_err(data->dev, "unable to register as hwmon device.\n");
dev_err(dev, "unable to register as hwmon device.\n");
ret = PTR_ERR(data->hwmon_dev);
goto err_after_sysfs;
}
dev_info(&pdev->dev, "Thermistor type: %s successfully probed.\n",
pdev_id->name);
dev_info(dev, "Thermistor type: %s successfully probed.\n",
pdev_id->name);
tz = devm_thermal_zone_of_sensor_register(data->dev, 0, data->dev,
tz = devm_thermal_zone_of_sensor_register(dev, 0, dev,
&ntc_of_thermal_ops);
if (IS_ERR(tz))
dev_dbg(&pdev->dev, "Failed to register to thermal fw.\n");
dev_dbg(dev, "Failed to register to thermal fw.\n");
return 0;
err_after_sysfs:
sysfs_remove_group(&data->dev->kobj, &ntc_attr_group);
sysfs_remove_group(&dev->kobj, &ntc_attr_group);
return ret;
}
@ -686,7 +684,7 @@ static int ntc_thermistor_remove(struct platform_device *pdev)
struct ntc_data *data = platform_get_drvdata(pdev);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&data->dev->kobj, &ntc_attr_group);
sysfs_remove_group(&pdev->dev.kobj, &ntc_attr_group);
return 0;
}