[mirror_ubuntu-bionic-kernel.git] / drivers / hwmon / k8temp.c

/*
 * k8temp.c - Linux kernel module for hardware monitoring
 *
 * Copyright (C) 2006 Rudolf Marek <r.marek@assembler.cz>
 *
 * Inspired from the w83785 and amd756 drivers.
 *
 * 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; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */

#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
#include <linux/pci.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <asm/processor.h>

#define TEMP_FROM_REG(val)	(((((val) >> 16) & 0xff) - 49) * 1000)
#define REG_TEMP	0xe4
#define SEL_PLACE	0x40
#define SEL_CORE	0x04

struct k8temp_data {
	struct device *hwmon_dev;
	struct mutex update_lock;
	const char *name;
	char valid;		/* zero until following fields are valid */
	unsigned long last_updated;	/* in jiffies */

	/* registers values */
	u8 sensorsp;		/* sensor presence bits - SEL_CORE, SEL_PLACE */
	u32 temp[2][2];		/* core, place */
	u8 swap_core_select;    /* meaning of SEL_CORE is inverted */
	u32 temp_offset;
};

static struct k8temp_data *k8temp_update_device(struct device *dev)
{
	struct k8temp_data *data = dev_get_drvdata(dev);
	struct pci_dev *pdev = to_pci_dev(dev);
	u8 tmp;

	mutex_lock(&data->update_lock);

	if (!data->valid
	    || time_after(jiffies, data->last_updated + HZ)) {
		pci_read_config_byte(pdev, REG_TEMP, &tmp);
		tmp &= ~(SEL_PLACE | SEL_CORE);	/* Select sensor 0, core0 */
		pci_write_config_byte(pdev, REG_TEMP, tmp);
		pci_read_config_dword(pdev, REG_TEMP, &data->temp[0][0]);

		if (data->sensorsp & SEL_PLACE) {
			tmp |= SEL_PLACE;	/* Select sensor 1, core0 */
			pci_write_config_byte(pdev, REG_TEMP, tmp);
			pci_read_config_dword(pdev, REG_TEMP,
					      &data->temp[0][1]);
		}

		if (data->sensorsp & SEL_CORE) {
			tmp &= ~SEL_PLACE;	/* Select sensor 0, core1 */
			tmp |= SEL_CORE;
			pci_write_config_byte(pdev, REG_TEMP, tmp);
			pci_read_config_dword(pdev, REG_TEMP,
					      &data->temp[1][0]);

			if (data->sensorsp & SEL_PLACE) {
				tmp |= SEL_PLACE; /* Select sensor 1, core1 */
				pci_write_config_byte(pdev, REG_TEMP, tmp);
				pci_read_config_dword(pdev, REG_TEMP,
						      &data->temp[1][1]);
			}
		}

		data->last_updated = jiffies;
		data->valid = 1;
	}

	mutex_unlock(&data->update_lock);
	return data;
}

/*
 * Sysfs stuff
 */

static ssize_t name_show(struct device *dev, struct device_attribute
			 *devattr, char *buf)
{
	struct k8temp_data *data = dev_get_drvdata(dev);

	return sprintf(buf, "%s\n", data->name);
}


static ssize_t show_temp(struct device *dev,
			 struct device_attribute *devattr, char *buf)
{
	struct sensor_device_attribute_2 *attr =
	    to_sensor_dev_attr_2(devattr);
	int core = attr->nr;
	int place = attr->index;
	int temp;
	struct k8temp_data *data = k8temp_update_device(dev);

	if (data->swap_core_select && (data->sensorsp & SEL_CORE))
		core = core ? 0 : 1;

	temp = TEMP_FROM_REG(data->temp[core][place]) + data->temp_offset;

	return sprintf(buf, "%d\n", temp);
}

/* core, place */

static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0);
static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 1);
static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 1, 0);
static SENSOR_DEVICE_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 1, 1);
static DEVICE_ATTR_RO(name);

static const struct pci_device_id k8temp_ids[] = {
	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC) },
	{ 0 },
};

MODULE_DEVICE_TABLE(pci, k8temp_ids);

static int is_rev_g_desktop(u8 model)
{
	u32 brandidx;

	if (model < 0x69)
		return 0;

	if (model == 0xc1 || model == 0x6c || model == 0x7c)
		return 0;

	/*
	 * Differentiate between AM2 and ASB1.
	 * See "Constructing the processor Name String" in "Revision
	 * Guide for AMD NPT Family 0Fh Processors" (33610).
	 */
	brandidx = cpuid_ebx(0x80000001);
	brandidx = (brandidx >> 9) & 0x1f;

	/* Single core */
	if ((model == 0x6f || model == 0x7f) &&
	    (brandidx == 0x7 || brandidx == 0x9 || brandidx == 0xc))
		return 0;

	/* Dual core */
	if (model == 0x6b &&
	    (brandidx == 0xb || brandidx == 0xc))
		return 0;

	return 1;
}

static int k8temp_probe(struct pci_dev *pdev,
				  const struct pci_device_id *id)
{
	int err;
	u8 scfg;
	u32 temp;
	u8 model, stepping;
	struct k8temp_data *data;

	data = devm_kzalloc(&pdev->dev, sizeof(struct k8temp_data), GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	model = boot_cpu_data.x86_model;
	stepping = boot_cpu_data.x86_stepping;

	/* feature available since SH-C0, exclude older revisions */
	if ((model == 4 && stepping == 0) ||
	    (model == 5 && stepping <= 1))
		return -ENODEV;

	/*
	 * AMD NPT family 0fh, i.e. RevF and RevG:
	 * meaning of SEL_CORE bit is inverted
	 */
	if (model >= 0x40) {
		data->swap_core_select = 1;
		dev_warn(&pdev->dev,
			 "Temperature readouts might be wrong - check erratum #141\n");
	}

	/*
	 * RevG desktop CPUs (i.e. no socket S1G1 or ASB1 parts) need
	 * additional offset, otherwise reported temperature is below
	 * ambient temperature
	 */
	if (is_rev_g_desktop(model))
		data->temp_offset = 21000;

	pci_read_config_byte(pdev, REG_TEMP, &scfg);
	scfg &= ~(SEL_PLACE | SEL_CORE);	/* Select sensor 0, core0 */
	pci_write_config_byte(pdev, REG_TEMP, scfg);
	pci_read_config_byte(pdev, REG_TEMP, &scfg);

	if (scfg & (SEL_PLACE | SEL_CORE)) {
		dev_err(&pdev->dev, "Configuration bit(s) stuck at 1!\n");
		return -ENODEV;
	}

	scfg |= (SEL_PLACE | SEL_CORE);
	pci_write_config_byte(pdev, REG_TEMP, scfg);

	/* now we know if we can change core and/or sensor */
	pci_read_config_byte(pdev, REG_TEMP, &data->sensorsp);

	if (data->sensorsp & SEL_PLACE) {
		scfg &= ~SEL_CORE;	/* Select sensor 1, core0 */
		pci_write_config_byte(pdev, REG_TEMP, scfg);
		pci_read_config_dword(pdev, REG_TEMP, &temp);
		scfg |= SEL_CORE;	/* prepare for next selection */
		if (!((temp >> 16) & 0xff)) /* if temp is 0 -49C is unlikely */
			data->sensorsp &= ~SEL_PLACE;
	}

	if (data->sensorsp & SEL_CORE) {
		scfg &= ~SEL_PLACE;	/* Select sensor 0, core1 */
		pci_write_config_byte(pdev, REG_TEMP, scfg);
		pci_read_config_dword(pdev, REG_TEMP, &temp);
		if (!((temp >> 16) & 0xff)) /* if temp is 0 -49C is unlikely */
			data->sensorsp &= ~SEL_CORE;
	}

	data->name = "k8temp";
	mutex_init(&data->update_lock);
	pci_set_drvdata(pdev, data);

	/* Register sysfs hooks */
	err = device_create_file(&pdev->dev,
			   &sensor_dev_attr_temp1_input.dev_attr);
	if (err)
		goto exit_remove;

	/* sensor can be changed and reports something */
	if (data->sensorsp & SEL_PLACE) {
		err = device_create_file(&pdev->dev,
				   &sensor_dev_attr_temp2_input.dev_attr);
		if (err)
			goto exit_remove;
	}

	/* core can be changed and reports something */
	if (data->sensorsp & SEL_CORE) {
		err = device_create_file(&pdev->dev,
				   &sensor_dev_attr_temp3_input.dev_attr);
		if (err)
			goto exit_remove;
		if (data->sensorsp & SEL_PLACE) {
			err = device_create_file(&pdev->dev,
					   &sensor_dev_attr_temp4_input.
					   dev_attr);
			if (err)
				goto exit_remove;
		}
	}

	err = device_create_file(&pdev->dev, &dev_attr_name);
	if (err)
		goto exit_remove;

	data->hwmon_dev = hwmon_device_register(&pdev->dev);

	if (IS_ERR(data->hwmon_dev)) {
		err = PTR_ERR(data->hwmon_dev);
		goto exit_remove;
	}

	return 0;

exit_remove:
	device_remove_file(&pdev->dev,
			   &sensor_dev_attr_temp1_input.dev_attr);
	device_remove_file(&pdev->dev,
			   &sensor_dev_attr_temp2_input.dev_attr);
	device_remove_file(&pdev->dev,
			   &sensor_dev_attr_temp3_input.dev_attr);
	device_remove_file(&pdev->dev,
			   &sensor_dev_attr_temp4_input.dev_attr);
	device_remove_file(&pdev->dev, &dev_attr_name);
	return err;
}

static void k8temp_remove(struct pci_dev *pdev)
{
	struct k8temp_data *data = pci_get_drvdata(pdev);

	hwmon_device_unregister(data->hwmon_dev);
	device_remove_file(&pdev->dev,
			   &sensor_dev_attr_temp1_input.dev_attr);
	device_remove_file(&pdev->dev,
			   &sensor_dev_attr_temp2_input.dev_attr);
	device_remove_file(&pdev->dev,
			   &sensor_dev_attr_temp3_input.dev_attr);
	device_remove_file(&pdev->dev,
			   &sensor_dev_attr_temp4_input.dev_attr);
	device_remove_file(&pdev->dev, &dev_attr_name);
}

static struct pci_driver k8temp_driver = {
	.name = "k8temp",
	.id_table = k8temp_ids,
	.probe = k8temp_probe,
	.remove = k8temp_remove,
};

module_pci_driver(k8temp_driver);

MODULE_AUTHOR("Rudolf Marek <r.marek@assembler.cz>");
MODULE_DESCRIPTION("AMD K8 core temperature monitor");
MODULE_LICENSE("GPL");
Commit	Line	Data
29fa06c1 RM	1	/*
	2	* k8temp.c - Linux kernel module for hardware monitoring
	3	*
7188cc66	4	* Copyright (C) 2006 Rudolf Marek <r.marek@assembler.cz>
29fa06c1 RM	5	*
	6	* Inspired from the w83785 and amd756 drivers.
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License as published by
	10	* the Free Software Foundation; either version 2 of the License, or
	11	* (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	21	* 02110-1301 USA.
	22	*/
	23
	24	#include <linux/module.h>
29fa06c1 RM	25	#include <linux/init.h>
	26	#include <linux/slab.h>
	27	#include <linux/jiffies.h>
	28	#include <linux/pci.h>
	29	#include <linux/hwmon.h>
	30	#include <linux/hwmon-sysfs.h>
	31	#include <linux/err.h>
	32	#include <linux/mutex.h>
bb9a35f2	33	#include <asm/processor.h>
29fa06c1 RM	34
	35	#define TEMP_FROM_REG(val) (((((val) >> 16) & 0xff) - 49) * 1000)
	36	#define REG_TEMP 0xe4
	37	#define SEL_PLACE 0x40
	38	#define SEL_CORE 0x04
	39
	40	struct k8temp_data {
1beeffe4	41	struct device *hwmon_dev;
29fa06c1 RM	42	struct mutex update_lock;
	43	const char *name;
	44	char valid; /* zero until following fields are valid */
	45	unsigned long last_updated; /* in jiffies */
	46
	47	/* registers values */
93092a64	48	u8 sensorsp; /* sensor presence bits - SEL_CORE, SEL_PLACE */
29fa06c1	49	u32 temp[2][2]; /* core, place */
a2e066bb	50	u8 swap_core_select; /* meaning of SEL_CORE is inverted */
76ff08da	51	u32 temp_offset;
29fa06c1 RM	52	};
	53
	54	static struct k8temp_data k8temp_update_device(struct device dev)
	55	{
	56	struct k8temp_data *data = dev_get_drvdata(dev);
	57	struct pci_dev *pdev = to_pci_dev(dev);
	58	u8 tmp;
	59
	60	mutex_lock(&data->update_lock);
	61
	62	if (!data->valid
	63	\|\| time_after(jiffies, data->last_updated + HZ)) {
	64	pci_read_config_byte(pdev, REG_TEMP, &tmp);
93092a64	65	tmp &= ~(SEL_PLACE \| SEL_CORE); /* Select sensor 0, core0 */
29fa06c1 RM	66	pci_write_config_byte(pdev, REG_TEMP, tmp);
	67	pci_read_config_dword(pdev, REG_TEMP, &data->temp[0][0]);
	68
	69	if (data->sensorsp & SEL_PLACE) {
	70	tmp \|= SEL_PLACE; /* Select sensor 1, core0 */
	71	pci_write_config_byte(pdev, REG_TEMP, tmp);
	72	pci_read_config_dword(pdev, REG_TEMP,
	73	&data->temp[0][1]);
	74	}
	75
	76	if (data->sensorsp & SEL_CORE) {
	77	tmp &= ~SEL_PLACE; /* Select sensor 0, core1 */
	78	tmp \|= SEL_CORE;
	79	pci_write_config_byte(pdev, REG_TEMP, tmp);
	80	pci_read_config_dword(pdev, REG_TEMP,
	81	&data->temp[1][0]);
	82
	83	if (data->sensorsp & SEL_PLACE) {
93092a64	84	tmp \|= SEL_PLACE; /* Select sensor 1, core1 */
29fa06c1 RM	85	pci_write_config_byte(pdev, REG_TEMP, tmp);
	86	pci_read_config_dword(pdev, REG_TEMP,
	87	&data->temp[1][1]);
	88	}
	89	}
	90
	91	data->last_updated = jiffies;
	92	data->valid = 1;
	93	}
	94
	95	mutex_unlock(&data->update_lock);
	96	return data;
	97	}
	98
	99	/*
	100	* Sysfs stuff
	101	*/
	102
4318ad77	103	static ssize_t name_show(struct device *dev, struct device_attribute
29fa06c1 RM	104	devattr, char buf)
	105	{
	106	struct k8temp_data *data = dev_get_drvdata(dev);
	107
	108	return sprintf(buf, "%s\n", data->name);
	109	}
	110
	111
	112	static ssize_t show_temp(struct device *dev,
	113	struct device_attribute devattr, char buf)
	114	{
	115	struct sensor_device_attribute_2 *attr =
	116	to_sensor_dev_attr_2(devattr);
	117	int core = attr->nr;
	118	int place = attr->index;
76ff08da	119	int temp;
29fa06c1 RM	120	struct k8temp_data *data = k8temp_update_device(dev);
29fa06c1 RM	121
cd4de21f	122	if (data->swap_core_select && (data->sensorsp & SEL_CORE))
a2e066bb AH	123	core = core ? 0 : 1;
a2e066bb AH	124
76ff08da AH	125	temp = TEMP_FROM_REG(data->temp[core][place]) + data->temp_offset;
	126
	127	return sprintf(buf, "%d\n", temp);
29fa06c1 RM	128	}
	129
	130	/* core, place */
	131
	132	static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0);
	133	static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 0, 1);
	134	static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 1, 0);
	135	static SENSOR_DEVICE_ATTR_2(temp4_input, S_IRUGO, show_temp, NULL, 1, 1);
4318ad77	136	static DEVICE_ATTR_RO(name);
29fa06c1	137
cd9bb056	138	static const struct pci_device_id k8temp_ids[] = {
29fa06c1 RM	139	{ PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC) },
	140	{ 0 },
	141	};
	142
b17ebc94 JD	143	MODULE_DEVICE_TABLE(pci, k8temp_ids);
b17ebc94 JD	144
6c931ae1	145	static int is_rev_g_desktop(u8 model)
a05e93f3 AH	146	{
	147	u32 brandidx;
	148
	149	if (model < 0x69)
	150	return 0;
	151
	152	if (model == 0xc1 \|\| model == 0x6c \|\| model == 0x7c)
	153	return 0;
	154
	155	/*
	156	* Differentiate between AM2 and ASB1.
	157	* See "Constructing the processor Name String" in "Revision
	158	* Guide for AMD NPT Family 0Fh Processors" (33610).
	159	*/
	160	brandidx = cpuid_ebx(0x80000001);
	161	brandidx = (brandidx >> 9) & 0x1f;
	162
	163	/* Single core */
	164	if ((model == 0x6f \|\| model == 0x7f) &&
	165	(brandidx == 0x7 \|\| brandidx == 0x9 \|\| brandidx == 0xc))
	166	return 0;
	167
	168	/* Dual core */
	169	if (model == 0x6b &&
	170	(brandidx == 0xb \|\| brandidx == 0xc))
	171	return 0;
	172
	173	return 1;
	174	}
	175
6c931ae1	176	static int k8temp_probe(struct pci_dev *pdev,
29fa06c1 RM	177	const struct pci_device_id *id)
	178	{
	179	int err;
	180	u8 scfg;
	181	u32 temp;
bb9a35f2	182	u8 model, stepping;
29fa06c1	183	struct k8temp_data *data;
29fa06c1	184
a0d44cbc GR	185	data = devm_kzalloc(&pdev->dev, sizeof(struct k8temp_data), GFP_KERNEL);
	186	if (!data)
	187	return -ENOMEM;
29fa06c1	188
bb9a35f2	189	model = boot_cpu_data.x86_model;
dd7cc466	190	stepping = boot_cpu_data.x86_stepping;
bb9a35f2	191
628b4504	192	/* feature available since SH-C0, exclude older revisions */
a0d44cbc GR	193	if ((model == 4 && stepping == 0) \|\|
	194	(model == 5 && stepping <= 1))
	195	return -ENODEV;
76ff08da	196
628b4504 AH	197	/*
	198	* AMD NPT family 0fh, i.e. RevF and RevG:
	199	* meaning of SEL_CORE bit is inverted
	200	*/
	201	if (model >= 0x40) {
	202	data->swap_core_select = 1;
b55f3757 GR	203	dev_warn(&pdev->dev,
b55f3757 GR	204	"Temperature readouts might be wrong - check erratum #141\n");
bb9a35f2 AH	205	}
bb9a35f2 AH	206
628b4504 AH	207	/*
	208	* RevG desktop CPUs (i.e. no socket S1G1 or ASB1 parts) need
	209	* additional offset, otherwise reported temperature is below
	210	* ambient temperature
	211	*/
	212	if (is_rev_g_desktop(model))
	213	data->temp_offset = 21000;
	214
29fa06c1	215	pci_read_config_byte(pdev, REG_TEMP, &scfg);
93092a64	216	scfg &= ~(SEL_PLACE \| SEL_CORE); /* Select sensor 0, core0 */
29fa06c1 RM	217	pci_write_config_byte(pdev, REG_TEMP, scfg);
	218	pci_read_config_byte(pdev, REG_TEMP, &scfg);
	219
	220	if (scfg & (SEL_PLACE \| SEL_CORE)) {
	221	dev_err(&pdev->dev, "Configuration bit(s) stuck at 1!\n");
a0d44cbc	222	return -ENODEV;
29fa06c1 RM	223	}
	224
	225	scfg \|= (SEL_PLACE \| SEL_CORE);
	226	pci_write_config_byte(pdev, REG_TEMP, scfg);
	227
	228	/* now we know if we can change core and/or sensor */
	229	pci_read_config_byte(pdev, REG_TEMP, &data->sensorsp);
	230
	231	if (data->sensorsp & SEL_PLACE) {
	232	scfg &= ~SEL_CORE; /* Select sensor 1, core0 */
	233	pci_write_config_byte(pdev, REG_TEMP, scfg);
	234	pci_read_config_dword(pdev, REG_TEMP, &temp);
	235	scfg \|= SEL_CORE; /* prepare for next selection */
93092a64	236	if (!((temp >> 16) & 0xff)) /* if temp is 0 -49C is unlikely */
29fa06c1 RM	237	data->sensorsp &= ~SEL_PLACE;
	238	}
	239
	240	if (data->sensorsp & SEL_CORE) {
	241	scfg &= ~SEL_PLACE; /* Select sensor 0, core1 */
	242	pci_write_config_byte(pdev, REG_TEMP, scfg);
	243	pci_read_config_dword(pdev, REG_TEMP, &temp);
93092a64	244	if (!((temp >> 16) & 0xff)) /* if temp is 0 -49C is unlikely */
29fa06c1 RM	245	data->sensorsp &= ~SEL_CORE;
	246	}
	247
	248	data->name = "k8temp";
	249	mutex_init(&data->update_lock);
95de3b25	250	pci_set_drvdata(pdev, data);
29fa06c1 RM	251
	252	/* Register sysfs hooks */
	253	err = device_create_file(&pdev->dev,
	254	&sensor_dev_attr_temp1_input.dev_attr);
	255	if (err)
	256	goto exit_remove;
	257
	258	/* sensor can be changed and reports something */
	259	if (data->sensorsp & SEL_PLACE) {
	260	err = device_create_file(&pdev->dev,
	261	&sensor_dev_attr_temp2_input.dev_attr);
	262	if (err)
	263	goto exit_remove;
	264	}
	265
	266	/* core can be changed and reports something */
	267	if (data->sensorsp & SEL_CORE) {
	268	err = device_create_file(&pdev->dev,
	269	&sensor_dev_attr_temp3_input.dev_attr);
	270	if (err)
	271	goto exit_remove;
df149d02	272	if (data->sensorsp & SEL_PLACE) {
29fa06c1 RM	273	err = device_create_file(&pdev->dev,
	274	&sensor_dev_attr_temp4_input.
	275	dev_attr);
	276	if (err)
	277	goto exit_remove;
df149d02	278	}
29fa06c1 RM	279	}
	280
	281	err = device_create_file(&pdev->dev, &dev_attr_name);
	282	if (err)
	283	goto exit_remove;
	284
1beeffe4	285	data->hwmon_dev = hwmon_device_register(&pdev->dev);
29fa06c1	286
1beeffe4 TJ	287	if (IS_ERR(data->hwmon_dev)) {
1beeffe4 TJ	288	err = PTR_ERR(data->hwmon_dev);
29fa06c1 RM	289	goto exit_remove;
	290	}
	291
	292	return 0;
	293
	294	exit_remove:
	295	device_remove_file(&pdev->dev,
	296	&sensor_dev_attr_temp1_input.dev_attr);
	297	device_remove_file(&pdev->dev,
	298	&sensor_dev_attr_temp2_input.dev_attr);
	299	device_remove_file(&pdev->dev,
	300	&sensor_dev_attr_temp3_input.dev_attr);
	301	device_remove_file(&pdev->dev,
	302	&sensor_dev_attr_temp4_input.dev_attr);
	303	device_remove_file(&pdev->dev, &dev_attr_name);
29fa06c1 RM	304	return err;
	305	}
	306
281dfd0b	307	static void k8temp_remove(struct pci_dev *pdev)
29fa06c1	308	{
95de3b25	309	struct k8temp_data *data = pci_get_drvdata(pdev);
29fa06c1	310
1beeffe4	311	hwmon_device_unregister(data->hwmon_dev);
29fa06c1 RM	312	device_remove_file(&pdev->dev,
	313	&sensor_dev_attr_temp1_input.dev_attr);
	314	device_remove_file(&pdev->dev,
	315	&sensor_dev_attr_temp2_input.dev_attr);
	316	device_remove_file(&pdev->dev,
	317	&sensor_dev_attr_temp3_input.dev_attr);
	318	device_remove_file(&pdev->dev,
	319	&sensor_dev_attr_temp4_input.dev_attr);
	320	device_remove_file(&pdev->dev, &dev_attr_name);
29fa06c1 RM	321	}
	322
	323	static struct pci_driver k8temp_driver = {
	324	.name = "k8temp",
	325	.id_table = k8temp_ids,
	326	.probe = k8temp_probe,
9e5e9b7a	327	.remove = k8temp_remove,
29fa06c1 RM	328	};
29fa06c1 RM	329
f71f5a55	330	module_pci_driver(k8temp_driver);
29fa06c1	331
7188cc66	332	MODULE_AUTHOR("Rudolf Marek <r.marek@assembler.cz>");
29fa06c1 RM	333	MODULE_DESCRIPTION("AMD K8 core temperature monitor");
29fa06c1 RM	334	MODULE_LICENSE("GPL");