Simplify code, reduce code size, and attach sysfs attributes to hwmon device.
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
drivers/hwmon/tmp102.c | 46 ++++++++++++++++++++--------------------------
1 file changed, 20 insertions(+), 26 deletions(-)
diff --git a/drivers/hwmon/tmp102.c b/drivers/hwmon/tmp102.c
index 5ea99a2..5171995 100644
--- a/drivers/hwmon/tmp102.c
+++ b/drivers/hwmon/tmp102.c
@@ -51,6 +51,7 @@
#define TMP102_THIGH_REG 0x03
struct tmp102 {
+ struct i2c_client *client;
struct device *hwmon_dev;
struct thermal_zone_device *tz;
struct mutex lock;
@@ -77,9 +78,10 @@ static const u8 tmp102_reg[] = {
TMP102_THIGH_REG,
};
-static struct tmp102 *tmp102_update_device(struct i2c_client *client)
+static struct tmp102 *tmp102_update_device(struct device *dev)
{
- struct tmp102 *tmp102 = i2c_get_clientdata(client);
+ struct tmp102 *tmp102 = dev_get_drvdata(dev);
+ struct i2c_client *client = tmp102->client;
mutex_lock(&tmp102->lock);
if (time_after(jiffies, tmp102->last_update + HZ / 3)) {
@@ -98,7 +100,7 @@ static struct tmp102 *tmp102_update_device(struct i2c_client *client)
static int tmp102_read_temp(void *dev, long *temp)
{
- struct tmp102 *tmp102 = tmp102_update_device(to_i2c_client(dev));
+ struct tmp102 *tmp102 = tmp102_update_device(dev);
*temp = tmp102->temp[0];
@@ -110,7 +112,7 @@ static ssize_t tmp102_show_temp(struct device *dev,
char *buf)
{
struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
- struct tmp102 *tmp102 = tmp102_update_device(to_i2c_client(dev));
+ struct tmp102 *tmp102 = tmp102_update_device(dev);
return sprintf(buf, "%d\n", tmp102->temp[sda->index]);
}
@@ -120,8 +122,8 @@ static ssize_t tmp102_set_temp(struct device *dev,
const char *buf, size_t count)
{
struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
- struct i2c_client *client = to_i2c_client(dev);
- struct tmp102 *tmp102 = i2c_get_clientdata(client);
+ struct tmp102 *tmp102 = dev_get_drvdata(dev);
+ struct i2c_client *client = tmp102->client;
long val;
int status;
@@ -145,16 +147,13 @@ static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO, tmp102_show_temp,
static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, tmp102_show_temp,
tmp102_set_temp, 2);
-static struct attribute *tmp102_attributes[] = {
+static struct attribute *tmp102_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
NULL
};
-
-static const struct attribute_group tmp102_attr_group = {
- .attrs = tmp102_attributes,
-};
+ATTRIBUTE_GROUPS(tmp102);
#define TMP102_CONFIG (TMP102_CONF_TM | TMP102_CONF_EM | TMP102_CONF_CR1)
#define TMP102_CONFIG_RD_ONLY (TMP102_CONF_R0 | TMP102_CONF_R1 | TMP102_CONF_AL)
@@ -163,6 +162,7 @@ static int tmp102_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
+ struct device *hwmon_dev;
struct tmp102 *tmp102;
int status;
@@ -178,6 +178,7 @@ static int tmp102_probe(struct i2c_client *client,
return -ENOMEM;
i2c_set_clientdata(client, tmp102);
+ tmp102->client = client;
status = i2c_smbus_read_word_swapped(client, TMP102_CONF_REG);
if (status < 0) {
@@ -205,19 +206,15 @@ static int tmp102_probe(struct i2c_client *client,
tmp102->last_update = jiffies - HZ;
mutex_init(&tmp102->lock);
- status = sysfs_create_group(&dev->kobj, &tmp102_attr_group);
- if (status) {
- dev_dbg(dev, "could not create sysfs files\n");
- goto fail_restore_config;
- }
- tmp102->hwmon_dev = hwmon_device_register(dev);
- if (IS_ERR(tmp102->hwmon_dev)) {
+ hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
+ tmp102, tmp102_groups);
+ if (IS_ERR(hwmon_dev)) {
dev_dbg(dev, "unable to register hwmon device\n");
- status = PTR_ERR(tmp102->hwmon_dev);
- goto fail_remove_sysfs;
+ status = PTR_ERR(hwmon_dev);
+ goto fail_restore_config;
}
-
- tmp102->tz = thermal_zone_of_sensor_register(dev, 0, dev,
+ tmp102->hwmon_dev = hwmon_dev;
+ tmp102->tz = thermal_zone_of_sensor_register(hwmon_dev, 0, hwmon_dev,
tmp102_read_temp, NULL);
if (IS_ERR(tmp102->tz))
tmp102->tz = NULL;
@@ -226,8 +223,6 @@ static int tmp102_probe(struct i2c_client *client,
return 0;
-fail_remove_sysfs:
- sysfs_remove_group(&dev->kobj, &tmp102_attr_group);
fail_restore_config:
i2c_smbus_write_word_swapped(client, TMP102_CONF_REG,
tmp102->config_orig);
@@ -238,9 +233,8 @@ static int tmp102_remove(struct i2c_client *client)
{
struct tmp102 *tmp102 = i2c_get_clientdata(client);
- thermal_zone_of_sensor_unregister(&client->dev, tmp102->tz);
+ thermal_zone_of_sensor_unregister(tmp102->hwmon_dev, tmp102->tz);
hwmon_device_unregister(tmp102->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &tmp102_attr_group);
/* Stop monitoring if device was stopped originally */
if (tmp102->config_orig & TMP102_CONF_SD) {
--
1.7.9.7
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