[linux-2.6-block.git] / drivers / hwmon / ibmpowernv.c

/*
 * IBM PowerNV platform sensors for temperature/fan/voltage/power
 * Copyright (C) 2014 IBM
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.
 */

#define DRVNAME		"ibmpowernv"
#define pr_fmt(fmt)	DRVNAME ": " fmt

#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/of.h>
#include <linux/slab.h>

#include <linux/platform_device.h>
#include <asm/opal.h>
#include <linux/err.h>

#define MAX_ATTR_LEN	32

/* Sensor suffix name from DT */
#define DT_FAULT_ATTR_SUFFIX		"faulted"
#define DT_DATA_ATTR_SUFFIX		"data"
#define DT_THRESHOLD_ATTR_SUFFIX	"thrs"

/*
 * Enumerates all the types of sensors in the POWERNV platform and does index
 * into 'struct sensor_group'
 */
enum sensors {
	FAN,
	TEMP,
	POWER_SUPPLY,
	POWER_INPUT,
	MAX_SENSOR_TYPE,
};

static struct sensor_group {
	const char *name;
	const char *compatible;
	struct attribute_group group;
	u32 attr_count;
	u32 hwmon_index;
} sensor_groups[] = {
	{"fan", "ibm,opal-sensor-cooling-fan"},
	{"temp", "ibm,opal-sensor-amb-temp"},
	{"in", "ibm,opal-sensor-power-supply"},
	{"power", "ibm,opal-sensor-power"}
};

struct sensor_data {
	u32 id; /* An opaque id of the firmware for each sensor */
	u32 hwmon_index;
	u32 opal_index;
	enum sensors type;
	char name[MAX_ATTR_LEN];
	struct device_attribute dev_attr;
};

struct platform_data {
	const struct attribute_group *attr_groups[MAX_SENSOR_TYPE + 1];
	u32 sensors_count; /* Total count of sensors from each group */
};

static ssize_t show_sensor(struct device *dev, struct device_attribute *devattr,
			   char *buf)
{
	struct sensor_data *sdata = container_of(devattr, struct sensor_data,
						 dev_attr);
	ssize_t ret;
	u32 x;

	ret = opal_get_sensor_data(sdata->id, &x);
	if (ret)
		return ret;

	/* Convert temperature to milli-degrees */
	if (sdata->type == TEMP)
		x *= 1000;
	/* Convert power to micro-watts */
	else if (sdata->type == POWER_INPUT)
		x *= 1000000;

	return sprintf(buf, "%u\n", x);
}

static int get_sensor_index_attr(const char *name, u32 *index,
					char *attr)
{
	char *hash_pos = strchr(name, '#');
	char buf[8] = { 0 };
	char *dash_pos;
	u32 copy_len;
	int err;

	if (!hash_pos)
		return -EINVAL;

	dash_pos = strchr(hash_pos, '-');
	if (!dash_pos)
		return -EINVAL;

	copy_len = dash_pos - hash_pos - 1;
	if (copy_len >= sizeof(buf))
		return -EINVAL;

	strncpy(buf, hash_pos + 1, copy_len);

	err = kstrtou32(buf, 10, index);
	if (err)
		return err;

	strncpy(attr, dash_pos + 1, MAX_ATTR_LEN);

	return 0;
}

static const char *convert_opal_attr_name(enum sensors type,
					  const char *opal_attr)
{
	const char *attr_name = NULL;

	if (!strcmp(opal_attr, DT_FAULT_ATTR_SUFFIX)) {
		attr_name = "fault";
	} else if (!strcmp(opal_attr, DT_DATA_ATTR_SUFFIX)) {
		attr_name = "input";
	} else if (!strcmp(opal_attr, DT_THRESHOLD_ATTR_SUFFIX)) {
		if (type == TEMP)
			attr_name = "max";
		else if (type == FAN)
			attr_name = "min";
	}

	return attr_name;
}

/*
 * This function translates the DT node name into the 'hwmon' attribute name.
 * IBMPOWERNV device node appear like cooling-fan#2-data, amb-temp#1-thrs etc.
 * which need to be mapped as fan2_input, temp1_max respectively before
 * populating them inside hwmon device class.
 */
static const char *parse_opal_node_name(const char *node_name,
					enum sensors type, u32 *index)
{
	char attr_suffix[MAX_ATTR_LEN];
	const char *attr_name;
	int err;

	err = get_sensor_index_attr(node_name, index, attr_suffix);
	if (err)
		return ERR_PTR(err);

	attr_name = convert_opal_attr_name(type, attr_suffix);
	if (!attr_name)
		return ERR_PTR(-ENOENT);

	return attr_name;
}

static int get_sensor_type(struct device_node *np)
{
	enum sensors type;

	for (type = 0; type < MAX_SENSOR_TYPE; type++) {
		if (of_device_is_compatible(np, sensor_groups[type].compatible))
			return type;
	}
	return MAX_SENSOR_TYPE;
}

static u32 get_sensor_hwmon_index(struct sensor_data *sdata,
				  struct sensor_data *sdata_table, int count)
{
	int i;

	for (i = 0; i < count; i++)
		if (sdata_table[i].opal_index == sdata->opal_index &&
		    sdata_table[i].type == sdata->type)
			return sdata_table[i].hwmon_index;

	return ++sensor_groups[sdata->type].hwmon_index;
}

static int populate_attr_groups(struct platform_device *pdev)
{
	struct platform_data *pdata = platform_get_drvdata(pdev);
	const struct attribute_group **pgroups = pdata->attr_groups;
	struct device_node *opal, *np;
	enum sensors type;

	opal = of_find_node_by_path("/ibm,opal/sensors");
	for_each_child_of_node(opal, np) {
		if (np->name == NULL)
			continue;

		type = get_sensor_type(np);
		if (type != MAX_SENSOR_TYPE)
			sensor_groups[type].attr_count++;
	}

	of_node_put(opal);

	for (type = 0; type < MAX_SENSOR_TYPE; type++) {
		sensor_groups[type].group.attrs = devm_kzalloc(&pdev->dev,
					sizeof(struct attribute *) *
					(sensor_groups[type].attr_count + 1),
					GFP_KERNEL);
		if (!sensor_groups[type].group.attrs)
			return -ENOMEM;

		pgroups[type] = &sensor_groups[type].group;
		pdata->sensors_count += sensor_groups[type].attr_count;
		sensor_groups[type].attr_count = 0;
	}

	return 0;
}

static void create_hwmon_attr(struct sensor_data *sdata, const char *attr_name,
			      ssize_t (*show)(struct device *dev,
					      struct device_attribute *attr,
					      char *buf))
{
	snprintf(sdata->name, MAX_ATTR_LEN, "%s%d_%s",
		 sensor_groups[sdata->type].name, sdata->hwmon_index,
		 attr_name);

	sysfs_attr_init(&sdata->dev_attr.attr);
	sdata->dev_attr.attr.name = sdata->name;
	sdata->dev_attr.attr.mode = S_IRUGO;
	sdata->dev_attr.show = show;
}

/*
 * Iterate through the device tree for each child of 'sensors' node, create
 * a sysfs attribute file, the file is named by translating the DT node name
 * to the name required by the higher 'hwmon' driver like fan1_input, temp1_max
 * etc..
 */
static int create_device_attrs(struct platform_device *pdev)
{
	struct platform_data *pdata = platform_get_drvdata(pdev);
	const struct attribute_group **pgroups = pdata->attr_groups;
	struct device_node *opal, *np;
	struct sensor_data *sdata;
	u32 sensor_id;
	enum sensors type;
	u32 count = 0;
	int err = 0;

	opal = of_find_node_by_path("/ibm,opal/sensors");
	sdata = devm_kzalloc(&pdev->dev, pdata->sensors_count * sizeof(*sdata),
			     GFP_KERNEL);
	if (!sdata) {
		err = -ENOMEM;
		goto exit_put_node;
	}

	for_each_child_of_node(opal, np) {
		const char *attr_name;
		u32 opal_index;

		if (np->name == NULL)
			continue;

		type = get_sensor_type(np);
		if (type == MAX_SENSOR_TYPE)
			continue;

		if (of_property_read_u32(np, "sensor-id", &sensor_id)) {
			dev_info(&pdev->dev,
				 "'sensor-id' missing in the node '%s'\n",
				 np->name);
			continue;
		}

		sdata[count].id = sensor_id;
		sdata[count].type = type;

		attr_name = parse_opal_node_name(np->name, type, &opal_index);
		if (IS_ERR(attr_name)) {
			dev_err(&pdev->dev, "Sensor device node name '%s' is invalid\n",
				np->name);
			err = PTR_ERR(attr_name);
			goto exit_put_node;
		}

		sdata[count].opal_index = opal_index;
		sdata[count].hwmon_index =
			get_sensor_hwmon_index(&sdata[count], sdata, count);

		create_hwmon_attr(&sdata[count], attr_name, show_sensor);

		pgroups[type]->attrs[sensor_groups[type].attr_count++] =
				&sdata[count++].dev_attr.attr;
	}

exit_put_node:
	of_node_put(opal);
	return err;
}

static int ibmpowernv_probe(struct platform_device *pdev)
{
	struct platform_data *pdata;
	struct device *hwmon_dev;
	int err;

	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
	if (!pdata)
		return -ENOMEM;

	platform_set_drvdata(pdev, pdata);
	pdata->sensors_count = 0;
	err = populate_attr_groups(pdev);
	if (err)
		return err;

	/* Create sysfs attribute data for each sensor found in the DT */
	err = create_device_attrs(pdev);
	if (err)
		return err;

	/* Finally, register with hwmon */
	hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev, DRVNAME,
							   pdata,
							   pdata->attr_groups);

	return PTR_ERR_OR_ZERO(hwmon_dev);
}

static const struct platform_device_id opal_sensor_driver_ids[] = {
	{
		.name = "opal-sensor",
	},
	{ }
};
MODULE_DEVICE_TABLE(platform, opal_sensor_driver_ids);

static struct platform_driver ibmpowernv_driver = {
	.probe		= ibmpowernv_probe,
	.id_table	= opal_sensor_driver_ids,
	.driver		= {
		.name	= DRVNAME,
	},
};

module_platform_driver(ibmpowernv_driver);

MODULE_AUTHOR("Neelesh Gupta <neelegup@linux.vnet.ibm.com>");
MODULE_DESCRIPTION("IBM POWERNV platform sensors");
MODULE_LICENSE("GPL");
Commit	Line	Data
24c1aa85 NG	1	/*
	2	* IBM PowerNV platform sensors for temperature/fan/voltage/power
	3	* Copyright (C) 2014 IBM
	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; either version 2 of the License, or
	8	* (at your option) any later version.
	9	*
	10	* This program is distributed in the hope that it will be useful,
	11	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	13	* GNU General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program.
	17	*/
	18
	19	#define DRVNAME "ibmpowernv"
	20	#define pr_fmt(fmt) DRVNAME ": " fmt
	21
	22	#include <linux/init.h>
	23	#include <linux/module.h>
	24	#include <linux/kernel.h>
	25	#include <linux/hwmon.h>
	26	#include <linux/hwmon-sysfs.h>
	27	#include <linux/of.h>
	28	#include <linux/slab.h>
	29
	30	#include <linux/platform_device.h>
	31	#include <asm/opal.h>
	32	#include <linux/err.h>
	33
	34	#define MAX_ATTR_LEN 32
	35
	36	/* Sensor suffix name from DT */
	37	#define DT_FAULT_ATTR_SUFFIX "faulted"
	38	#define DT_DATA_ATTR_SUFFIX "data"
	39	#define DT_THRESHOLD_ATTR_SUFFIX "thrs"
	40
	41	/*
	42	* Enumerates all the types of sensors in the POWERNV platform and does index
	43	* into 'struct sensor_group'
	44	*/
	45	enum sensors {
	46	FAN,
96124610	47	TEMP,
24c1aa85 NG	48	POWER_SUPPLY,
	49	POWER_INPUT,
	50	MAX_SENSOR_TYPE,
	51	};
	52
	53	static struct sensor_group {
	54	const char *name;
	55	const char *compatible;
	56	struct attribute_group group;
	57	u32 attr_count;
fcaf57b6	58	u32 hwmon_index;
24c1aa85 NG	59	} sensor_groups[] = {
	60	{"fan", "ibm,opal-sensor-cooling-fan"},
	61	{"temp", "ibm,opal-sensor-amb-temp"},
	62	{"in", "ibm,opal-sensor-power-supply"},
	63	{"power", "ibm,opal-sensor-power"}
	64	};
	65
	66	struct sensor_data {
	67	u32 id; /* An opaque id of the firmware for each sensor */
fcaf57b6 CLG	68	u32 hwmon_index;
fcaf57b6 CLG	69	u32 opal_index;
24c1aa85 NG	70	enum sensors type;
	71	char name[MAX_ATTR_LEN];
	72	struct device_attribute dev_attr;
	73	};
	74
	75	struct platform_data {
	76	const struct attribute_group *attr_groups[MAX_SENSOR_TYPE + 1];
	77	u32 sensors_count; /* Total count of sensors from each group */
	78	};
	79
24c1aa85 NG	80	static ssize_t show_sensor(struct device dev, struct device_attribute devattr,
	81	char *buf)
	82	{
	83	struct sensor_data *sdata = container_of(devattr, struct sensor_data,
	84	dev_attr);
	85	ssize_t ret;
	86	u32 x;
	87
	88	ret = opal_get_sensor_data(sdata->id, &x);
	89	if (ret)
	90	return ret;
	91
	92	/* Convert temperature to milli-degrees */
96124610	93	if (sdata->type == TEMP)
24c1aa85 NG	94	x *= 1000;
	95	/* Convert power to micro-watts */
	96	else if (sdata->type == POWER_INPUT)
	97	x *= 1000000;
	98
	99	return sprintf(buf, "%u\n", x);
	100	}
	101
8de303ba	102	static int get_sensor_index_attr(const char name, u32 index,
24c1aa85 NG	103	char *attr)
	104	{
	105	char *hash_pos = strchr(name, '#');
	106	char buf[8] = { 0 };
	107	char *dash_pos;
	108	u32 copy_len;
	109	int err;
	110
	111	if (!hash_pos)
	112	return -EINVAL;
	113
	114	dash_pos = strchr(hash_pos, '-');
	115	if (!dash_pos)
	116	return -EINVAL;
	117
	118	copy_len = dash_pos - hash_pos - 1;
	119	if (copy_len >= sizeof(buf))
	120	return -EINVAL;
	121
	122	strncpy(buf, hash_pos + 1, copy_len);
	123
	124	err = kstrtou32(buf, 10, index);
	125	if (err)
	126	return err;
	127
	128	strncpy(attr, dash_pos + 1, MAX_ATTR_LEN);
	129
	130	return 0;
	131	}
	132
ccc9ac6c CLG	133	static const char *convert_opal_attr_name(enum sensors type,
	134	const char *opal_attr)
	135	{
	136	const char *attr_name = NULL;
	137
	138	if (!strcmp(opal_attr, DT_FAULT_ATTR_SUFFIX)) {
	139	attr_name = "fault";
	140	} else if (!strcmp(opal_attr, DT_DATA_ATTR_SUFFIX)) {
	141	attr_name = "input";
	142	} else if (!strcmp(opal_attr, DT_THRESHOLD_ATTR_SUFFIX)) {
	143	if (type == TEMP)
	144	attr_name = "max";
	145	else if (type == FAN)
	146	attr_name = "min";
	147	}
	148
	149	return attr_name;
	150	}
	151
24c1aa85 NG	152	/*
	153	* This function translates the DT node name into the 'hwmon' attribute name.
	154	* IBMPOWERNV device node appear like cooling-fan#2-data, amb-temp#1-thrs etc.
	155	* which need to be mapped as fan2_input, temp1_max respectively before
	156	* populating them inside hwmon device class.
	157	*/
f9f54f16 CLG	158	static const char parse_opal_node_name(const char node_name,
f9f54f16 CLG	159	enum sensors type, u32 *index)
24c1aa85 NG	160	{
24c1aa85 NG	161	char attr_suffix[MAX_ATTR_LEN];
ccc9ac6c	162	const char *attr_name;
24c1aa85 NG	163	int err;
24c1aa85 NG	164
f9f54f16 CLG	165	err = get_sensor_index_attr(node_name, index, attr_suffix);
	166	if (err)
	167	return ERR_PTR(err);
24c1aa85	168
ccc9ac6c CLG	169	attr_name = convert_opal_attr_name(type, attr_suffix);
ccc9ac6c CLG	170	if (!attr_name)
f9f54f16	171	return ERR_PTR(-ENOENT);
24c1aa85	172
f9f54f16	173	return attr_name;
24c1aa85 NG	174	}
24c1aa85 NG	175
c4ad4720 CLG	176	static int get_sensor_type(struct device_node *np)
	177	{
	178	enum sensors type;
	179
	180	for (type = 0; type < MAX_SENSOR_TYPE; type++) {
	181	if (of_device_is_compatible(np, sensor_groups[type].compatible))
	182	return type;
	183	}
	184	return MAX_SENSOR_TYPE;
	185	}
	186
fcaf57b6 CLG	187	static u32 get_sensor_hwmon_index(struct sensor_data *sdata,
	188	struct sensor_data *sdata_table, int count)
	189	{
	190	int i;
	191
	192	for (i = 0; i < count; i++)
	193	if (sdata_table[i].opal_index == sdata->opal_index &&
	194	sdata_table[i].type == sdata->type)
	195	return sdata_table[i].hwmon_index;
	196
	197	return ++sensor_groups[sdata->type].hwmon_index;
	198	}
	199
8de303ba	200	static int populate_attr_groups(struct platform_device *pdev)
24c1aa85 NG	201	{
	202	struct platform_data *pdata = platform_get_drvdata(pdev);
	203	const struct attribute_group **pgroups = pdata->attr_groups;
	204	struct device_node opal, np;
	205	enum sensors type;
	206
	207	opal = of_find_node_by_path("/ibm,opal/sensors");
24c1aa85 NG	208	for_each_child_of_node(opal, np) {
	209	if (np->name == NULL)
	210	continue;
	211
c4ad4720 CLG	212	type = get_sensor_type(np);
	213	if (type != MAX_SENSOR_TYPE)
	214	sensor_groups[type].attr_count++;
24c1aa85 NG	215	}
	216
	217	of_node_put(opal);
	218
	219	for (type = 0; type < MAX_SENSOR_TYPE; type++) {
	220	sensor_groups[type].group.attrs = devm_kzalloc(&pdev->dev,
	221	sizeof(struct attribute )
	222	(sensor_groups[type].attr_count + 1),
	223	GFP_KERNEL);
	224	if (!sensor_groups[type].group.attrs)
	225	return -ENOMEM;
	226
	227	pgroups[type] = &sensor_groups[type].group;
	228	pdata->sensors_count += sensor_groups[type].attr_count;
	229	sensor_groups[type].attr_count = 0;
	230	}
	231
	232	return 0;
	233	}
	234
9e4f74b1 CLG	235	static void create_hwmon_attr(struct sensor_data sdata, const char attr_name,
	236	ssize_t (show)(struct device dev,
	237	struct device_attribute *attr,
	238	char *buf))
	239	{
	240	snprintf(sdata->name, MAX_ATTR_LEN, "%s%d_%s",
	241	sensor_groups[sdata->type].name, sdata->hwmon_index,
	242	attr_name);
	243
	244	sysfs_attr_init(&sdata->dev_attr.attr);
	245	sdata->dev_attr.attr.name = sdata->name;
	246	sdata->dev_attr.attr.mode = S_IRUGO;
	247	sdata->dev_attr.show = show;
	248	}
	249
24c1aa85 NG	250	/*
	251	* Iterate through the device tree for each child of 'sensors' node, create
	252	* a sysfs attribute file, the file is named by translating the DT node name
	253	* to the name required by the higher 'hwmon' driver like fan1_input, temp1_max
	254	* etc..
	255	*/
8de303ba	256	static int create_device_attrs(struct platform_device *pdev)
24c1aa85 NG	257	{
	258	struct platform_data *pdata = platform_get_drvdata(pdev);
	259	const struct attribute_group **pgroups = pdata->attr_groups;
	260	struct device_node opal, np;
	261	struct sensor_data *sdata;
18d03f3c	262	u32 sensor_id;
24c1aa85 NG	263	enum sensors type;
	264	u32 count = 0;
	265	int err = 0;
	266
	267	opal = of_find_node_by_path("/ibm,opal/sensors");
	268	sdata = devm_kzalloc(&pdev->dev, pdata->sensors_count * sizeof(*sdata),
	269	GFP_KERNEL);
	270	if (!sdata) {
	271	err = -ENOMEM;
	272	goto exit_put_node;
	273	}
	274
	275	for_each_child_of_node(opal, np) {
f9f54f16 CLG	276	const char *attr_name;
	277	u32 opal_index;
	278
24c1aa85 NG	279	if (np->name == NULL)
	280	continue;
	281
c4ad4720	282	type = get_sensor_type(np);
24c1aa85 NG	283	if (type == MAX_SENSOR_TYPE)
	284	continue;
	285
18d03f3c	286	if (of_property_read_u32(np, "sensor-id", &sensor_id)) {
24c1aa85 NG	287	dev_info(&pdev->dev,
	288	"'sensor-id' missing in the node '%s'\n",
	289	np->name);
	290	continue;
	291	}
	292
18d03f3c	293	sdata[count].id = sensor_id;
24c1aa85	294	sdata[count].type = type;
f9f54f16 CLG	295
	296	attr_name = parse_opal_node_name(np->name, type, &opal_index);
	297	if (IS_ERR(attr_name)) {
	298	dev_err(&pdev->dev, "Sensor device node name '%s' is invalid\n",
	299	np->name);
	300	err = PTR_ERR(attr_name);
24c1aa85	301	goto exit_put_node;
f9f54f16 CLG	302	}
f9f54f16 CLG	303
fcaf57b6 CLG	304	sdata[count].opal_index = opal_index;
	305	sdata[count].hwmon_index =
	306	get_sensor_hwmon_index(&sdata[count], sdata, count);
	307
9e4f74b1	308	create_hwmon_attr(&sdata[count], attr_name, show_sensor);
24c1aa85 NG	309
	310	pgroups[type]->attrs[sensor_groups[type].attr_count++] =
	311	&sdata[count++].dev_attr.attr;
	312	}
	313
	314	exit_put_node:
	315	of_node_put(opal);
	316	return err;
	317	}
	318
8de303ba	319	static int ibmpowernv_probe(struct platform_device *pdev)
24c1aa85 NG	320	{
	321	struct platform_data *pdata;
	322	struct device *hwmon_dev;
	323	int err;
	324
	325	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
	326	if (!pdata)
	327	return -ENOMEM;
	328
	329	platform_set_drvdata(pdev, pdata);
	330	pdata->sensors_count = 0;
	331	err = populate_attr_groups(pdev);
	332	if (err)
	333	return err;
	334
	335	/* Create sysfs attribute data for each sensor found in the DT */
	336	err = create_device_attrs(pdev);
	337	if (err)
	338	return err;
	339
	340	/* Finally, register with hwmon */
	341	hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev, DRVNAME,
	342	pdata,
	343	pdata->attr_groups);
	344
	345	return PTR_ERR_OR_ZERO(hwmon_dev);
	346	}
	347
8de303ba NG	348	static const struct platform_device_id opal_sensor_driver_ids[] = {
	349	{
	350	.name = "opal-sensor",
	351	},
	352	{ }
	353	};
	354	MODULE_DEVICE_TABLE(platform, opal_sensor_driver_ids);
	355
24c1aa85	356	static struct platform_driver ibmpowernv_driver = {
8de303ba NG	357	.probe = ibmpowernv_probe,
	358	.id_table = opal_sensor_driver_ids,
	359	.driver = {
8de303ba	360	.name = DRVNAME,
24c1aa85 NG	361	},
	362	};
	363
3bdec670	364	module_platform_driver(ibmpowernv_driver);
24c1aa85 NG	365
	366	MODULE_AUTHOR("Neelesh Gupta <neelegup@linux.vnet.ibm.com>");
	367	MODULE_DESCRIPTION("IBM POWERNV platform sensors");
	368	MODULE_LICENSE("GPL");