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Date: Sun, 17 Mar 2013 18:45:54 -0700
From: Guenter Roeck <linux@...ck-us.net>
To: lm-sensors@...sensors.org, linux-kernel@...r.kernel.org
Cc: Jean Delvare <khali@...ux-fr.org>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Guenter Roeck <linux@...ck-us.net>
Subject: [RFC PATCH 5/8] hwmon: (max6697) Convert to devm_hwmon_device_register API
Signed-off-by: Guenter Roeck <linux@...ck-us.net>
---
drivers/hwmon/max6697.c | 157 ++++++++++++++++++++++++++---------------------
1 file changed, 86 insertions(+), 71 deletions(-)
diff --git a/drivers/hwmon/max6697.c b/drivers/hwmon/max6697.c
index bf4aa37..068425b 100644
--- a/drivers/hwmon/max6697.c
+++ b/drivers/hwmon/max6697.c
@@ -181,7 +181,7 @@ static const struct max6697_chip_data max6697_chip_data[] = {
static struct max6697_data *max6697_update_device(struct device *dev)
{
- struct i2c_client *client = to_i2c_client(dev);
+ struct i2c_client *client = to_i2c_client(dev->parent);
struct max6697_data *data = i2c_get_clientdata(client);
struct max6697_data *ret = data;
int val;
@@ -303,7 +303,7 @@ static ssize_t set_temp(struct device *dev,
{
int nr = to_sensor_dev_attr_2(devattr)->nr;
int index = to_sensor_dev_attr_2(devattr)->index;
- struct i2c_client *client = to_i2c_client(dev);
+ struct i2c_client *client = to_i2c_client(dev->parent);
struct max6697_data *data = i2c_get_clientdata(client);
long temp;
int ret;
@@ -466,15 +466,86 @@ static struct attribute *max6697_attributes[8][7] = {
}
};
+static umode_t max6697_is_visible(struct kobject *kobj, struct attribute *attr,
+ int index, int channel)
+{
+ struct device *dev = container_of(kobj, struct device, kobj);
+ struct i2c_client *client = to_i2c_client(dev->parent);
+ struct max6697_data *data = i2c_get_clientdata(client);
+ const struct max6697_chip_data *chip = data->chip;
+
+ if (channel >= chip->channels)
+ return 0;
+
+ if ((index == 3 || index == 4) && !(chip->have_crit & (1 << channel)))
+ return 0;
+ if (index == 5 && !(chip->have_fault & (1 << channel)))
+ return 0;
+
+ return attr->mode;
+}
+
+static umode_t max6697_visible_0(struct kobject *k, struct attribute *a, int i)
+{
+ return max6697_is_visible(k, a, i, 0);
+}
+
+static umode_t max6697_visible_1(struct kobject *k, struct attribute *a, int i)
+{
+ return max6697_is_visible(k, a, i, 1);
+}
+
+static umode_t max6697_visible_2(struct kobject *k, struct attribute *a, int i)
+{
+ return max6697_is_visible(k, a, i, 2);
+}
+
+static umode_t max6697_visible_3(struct kobject *k, struct attribute *a, int i)
+{
+ return max6697_is_visible(k, a, i, 3);
+}
+
+static umode_t max6697_visible_4(struct kobject *k, struct attribute *a, int i)
+{
+ return max6697_is_visible(k, a, i, 4);
+}
+
+static umode_t max6697_visible_5(struct kobject *k, struct attribute *a, int i)
+{
+ return max6697_is_visible(k, a, i, 5);
+}
+
+static umode_t max6697_visible_6(struct kobject *k, struct attribute *a, int i)
+{
+ return max6697_is_visible(k, a, i, 6);
+}
+
+static umode_t max6697_visible_7(struct kobject *k, struct attribute *a, int i)
+{
+ return max6697_is_visible(k, a, i, 7);
+}
+
static const struct attribute_group max6697_group[8] = {
- { .attrs = max6697_attributes[0] },
- { .attrs = max6697_attributes[1] },
- { .attrs = max6697_attributes[2] },
- { .attrs = max6697_attributes[3] },
- { .attrs = max6697_attributes[4] },
- { .attrs = max6697_attributes[5] },
- { .attrs = max6697_attributes[6] },
- { .attrs = max6697_attributes[7] },
+ { .attrs = max6697_attributes[0], .is_visible = max6697_visible_0 },
+ { .attrs = max6697_attributes[1], .is_visible = max6697_visible_1 },
+ { .attrs = max6697_attributes[2], .is_visible = max6697_visible_2 },
+ { .attrs = max6697_attributes[3], .is_visible = max6697_visible_3 },
+ { .attrs = max6697_attributes[4], .is_visible = max6697_visible_4 },
+ { .attrs = max6697_attributes[5], .is_visible = max6697_visible_5 },
+ { .attrs = max6697_attributes[6], .is_visible = max6697_visible_6 },
+ { .attrs = max6697_attributes[7], .is_visible = max6697_visible_7 },
+};
+
+static const struct attribute_group *max6697_groups[] = {
+ &max6697_group[0],
+ &max6697_group[1],
+ &max6697_group[2],
+ &max6697_group[3],
+ &max6697_group[4],
+ &max6697_group[5],
+ &max6697_group[6],
+ &max6697_group[7],
+ NULL
};
static void max6697_get_config_of(struct device_node *node,
@@ -606,21 +677,13 @@ done:
return 0;
}
-static void max6697_remove_files(struct i2c_client *client)
-{
- int i;
-
- for (i = 0; i < ARRAY_SIZE(max6697_group); i++)
- sysfs_remove_group(&client->dev.kobj, &max6697_group[i]);
-}
-
static int max6697_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct i2c_adapter *adapter = client->adapter;
struct device *dev = &client->dev;
struct max6697_data *data;
- int i, err;
+ int err;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
@@ -639,57 +702,10 @@ static int max6697_probe(struct i2c_client *client,
if (err)
return err;
- for (i = 0; i < data->chip->channels; i++) {
- err = sysfs_create_file(&dev->kobj,
- max6697_attributes[i][0]);
- if (err)
- goto error;
- err = sysfs_create_file(&dev->kobj,
- max6697_attributes[i][1]);
- if (err)
- goto error;
- err = sysfs_create_file(&dev->kobj,
- max6697_attributes[i][2]);
- if (err)
- goto error;
-
- if (data->chip->have_crit & (1 << i)) {
- err = sysfs_create_file(&dev->kobj,
- max6697_attributes[i][3]);
- if (err)
- goto error;
- err = sysfs_create_file(&dev->kobj,
- max6697_attributes[i][4]);
- if (err)
- goto error;
- }
- if (data->chip->have_fault & (1 << i)) {
- err = sysfs_create_file(&dev->kobj,
- max6697_attributes[i][5]);
- if (err)
- goto error;
- }
- }
-
- data->hwmon_dev = hwmon_device_register(dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- goto error;
- }
-
- return 0;
-
-error:
- max6697_remove_files(client);
- return err;
-}
-
-static int max6697_remove(struct i2c_client *client)
-{
- struct max6697_data *data = i2c_get_clientdata(client);
-
- hwmon_device_unregister(data->hwmon_dev);
- max6697_remove_files(client);
+ data->hwmon_dev = devm_hwmon_device_register(dev, max6697_groups,
+ id->name);
+ if (IS_ERR(data->hwmon_dev))
+ return PTR_ERR(data->hwmon_dev);
return 0;
}
@@ -715,7 +731,6 @@ static struct i2c_driver max6697_driver = {
.name = "max6697",
},
.probe = max6697_probe,
- .remove = max6697_remove,
.id_table = max6697_id,
};
--
1.7.9.7
--
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