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Commit d4425649 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge tag 'hwmon-for-v5.2-rc4' of... 

Merge tag 'hwmon-for-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon fixes from Guenter Roeck:

 - Fix a couple of inconsistencies and locking problems in pmbus driver

 - Register with thermal subsystem only on systems supporting devicetree

* tag 'hwmon-for-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
  hwmon: (pmbus/core) Treat parameters as paged if on multiple pages
  hwmon: (pmbus/core) mutex_lock write in pmbus_set_samples
  hwmon: (core) add thermal sensors only if dev->of_node is present
parents 893a7d32 4a60570d

drivers/hwmon/hwmon.c

+1 −1
Original line number Diff line number Diff line
@@ -636,7 +636,7 @@ __hwmon_device_register(struct device *dev, const char *name, void *drvdata, 
	if (err)

		goto free_hwmon;



	if (dev && chip && chip->ops->read &&

	if (dev && dev->of_node && chip && chip->ops->read &&

	    chip->info[0]->type == hwmon_chip &&

	    (chip->info[0]->config[0] & HWMON_C_REGISTER_TZ)) {

		const struct hwmon_channel_info **info = chip->info;

drivers/hwmon/pmbus/pmbus_core.c

+33 −4
Original line number Diff line number Diff line
@@ -1217,7 +1217,8 @@ static int pmbus_add_sensor_attrs_one(struct i2c_client *client, 
				      const struct pmbus_driver_info *info,

				      const char *name,

				      int index, int page,

				      const struct pmbus_sensor_attr *attr)

				      const struct pmbus_sensor_attr *attr,

				      bool paged)

{

	struct pmbus_sensor *base;

	bool upper = !!(attr->gbit & 0xff00);	/* need to check STATUS_WORD */
@@ -1225,7 +1226,7 @@ static int pmbus_add_sensor_attrs_one(struct i2c_client *client, 


	if (attr->label) {

		ret = pmbus_add_label(data, name, index, attr->label,

				      attr->paged ? page + 1 : 0);

				      paged ? page + 1 : 0);

		if (ret)

			return ret;

	}
@@ -1258,6 +1259,30 @@ static int pmbus_add_sensor_attrs_one(struct i2c_client *client, 
	return 0;

}



static bool pmbus_sensor_is_paged(const struct pmbus_driver_info *info,

				  const struct pmbus_sensor_attr *attr)

{

	int p;



	if (attr->paged)

		return true;



	/*

	 * Some attributes may be present on more than one page despite

	 * not being marked with the paged attribute. If that is the case,

	 * then treat the sensor as being paged and add the page suffix to the

	 * attribute name.

	 * We don't just add the paged attribute to all such attributes, in

	 * order to maintain the un-suffixed labels in the case where the

	 * attribute is only on page 0.

	 */

	for (p = 1; p < info->pages; p++) {

		if (info->func[p] & attr->func)

			return true;

	}

	return false;

}



static int pmbus_add_sensor_attrs(struct i2c_client *client,

				  struct pmbus_data *data,

				  const char *name,
@@ -1271,14 +1296,15 @@ static int pmbus_add_sensor_attrs(struct i2c_client *client, 
	index = 1;

	for (i = 0; i < nattrs; i++) {

		int page, pages;

		bool paged = pmbus_sensor_is_paged(info, attrs);



		pages = attrs->paged ? info->pages : 1;

		pages = paged ? info->pages : 1;

		for (page = 0; page < pages; page++) {

			if (!(info->func[page] & attrs->func))

				continue;

			ret = pmbus_add_sensor_attrs_one(client, data, info,

							 name, index, page,

							 attrs);

							 attrs, paged);

			if (ret)

				return ret;

			index++;
@@ -1942,11 +1968,14 @@ static ssize_t pmbus_set_samples(struct device *dev, 
	long val;

	struct i2c_client *client = to_i2c_client(dev->parent);

	struct pmbus_samples_reg *reg = to_samples_reg(devattr);

	struct pmbus_data *data = i2c_get_clientdata(client);



	if (kstrtol(buf, 0, &val) < 0)

		return -EINVAL;



	mutex_lock(&data->update_lock);

	ret = _pmbus_write_word_data(client, reg->page, reg->attr->reg, val);

	mutex_unlock(&data->update_lock);



	return ret ? : count;

}