609 lines
15 KiB
C
609 lines
15 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* A hwmon driver for the Intel 5000 series chipset FB-DIMM AMB
|
|
* temperature sensors
|
|
* Copyright (C) 2007 IBM
|
|
*
|
|
* Author: Darrick J. Wong <darrick.wong@oracle.com>
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/hwmon.h>
|
|
#include <linux/hwmon-sysfs.h>
|
|
#include <linux/err.h>
|
|
#include <linux/mutex.h>
|
|
#include <linux/log2.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/platform_device.h>
|
|
#include <linux/slab.h>
|
|
|
|
#define DRVNAME "i5k_amb"
|
|
|
|
#define I5K_REG_AMB_BASE_ADDR 0x48
|
|
#define I5K_REG_AMB_LEN_ADDR 0x50
|
|
#define I5K_REG_CHAN0_PRESENCE_ADDR 0x64
|
|
#define I5K_REG_CHAN1_PRESENCE_ADDR 0x66
|
|
|
|
#define AMB_REG_TEMP_MIN_ADDR 0x80
|
|
#define AMB_REG_TEMP_MID_ADDR 0x81
|
|
#define AMB_REG_TEMP_MAX_ADDR 0x82
|
|
#define AMB_REG_TEMP_STATUS_ADDR 0x84
|
|
#define AMB_REG_TEMP_ADDR 0x85
|
|
|
|
#define AMB_CONFIG_SIZE 2048
|
|
#define AMB_FUNC_3_OFFSET 768
|
|
|
|
static unsigned long amb_reg_temp_status(unsigned int amb)
|
|
{
|
|
return AMB_FUNC_3_OFFSET + AMB_REG_TEMP_STATUS_ADDR +
|
|
AMB_CONFIG_SIZE * amb;
|
|
}
|
|
|
|
static unsigned long amb_reg_temp_min(unsigned int amb)
|
|
{
|
|
return AMB_FUNC_3_OFFSET + AMB_REG_TEMP_MIN_ADDR +
|
|
AMB_CONFIG_SIZE * amb;
|
|
}
|
|
|
|
static unsigned long amb_reg_temp_mid(unsigned int amb)
|
|
{
|
|
return AMB_FUNC_3_OFFSET + AMB_REG_TEMP_MID_ADDR +
|
|
AMB_CONFIG_SIZE * amb;
|
|
}
|
|
|
|
static unsigned long amb_reg_temp_max(unsigned int amb)
|
|
{
|
|
return AMB_FUNC_3_OFFSET + AMB_REG_TEMP_MAX_ADDR +
|
|
AMB_CONFIG_SIZE * amb;
|
|
}
|
|
|
|
static unsigned long amb_reg_temp(unsigned int amb)
|
|
{
|
|
return AMB_FUNC_3_OFFSET + AMB_REG_TEMP_ADDR +
|
|
AMB_CONFIG_SIZE * amb;
|
|
}
|
|
|
|
#define MAX_MEM_CHANNELS 4
|
|
#define MAX_AMBS_PER_CHANNEL 16
|
|
#define MAX_AMBS (MAX_MEM_CHANNELS * \
|
|
MAX_AMBS_PER_CHANNEL)
|
|
#define CHANNEL_SHIFT 4
|
|
#define DIMM_MASK 0xF
|
|
/*
|
|
* Ugly hack: For some reason the highest bit is set if there
|
|
* are _any_ DIMMs in the channel. Attempting to read from
|
|
* this "high-order" AMB results in a memory bus error, so
|
|
* for now we'll just ignore that top bit, even though that
|
|
* might prevent us from seeing the 16th DIMM in the channel.
|
|
*/
|
|
#define REAL_MAX_AMBS_PER_CHANNEL 15
|
|
#define KNOBS_PER_AMB 6
|
|
|
|
static unsigned long amb_num_from_reg(unsigned int byte_num, unsigned int bit)
|
|
{
|
|
return byte_num * MAX_AMBS_PER_CHANNEL + bit;
|
|
}
|
|
|
|
#define AMB_SYSFS_NAME_LEN 16
|
|
struct i5k_device_attribute {
|
|
struct sensor_device_attribute s_attr;
|
|
char name[AMB_SYSFS_NAME_LEN];
|
|
};
|
|
|
|
struct i5k_amb_data {
|
|
struct device *hwmon_dev;
|
|
|
|
unsigned long amb_base;
|
|
unsigned long amb_len;
|
|
u16 amb_present[MAX_MEM_CHANNELS];
|
|
void __iomem *amb_mmio;
|
|
struct i5k_device_attribute *attrs;
|
|
unsigned int num_attrs;
|
|
};
|
|
|
|
static ssize_t name_show(struct device *dev, struct device_attribute *devattr,
|
|
char *buf)
|
|
{
|
|
return sprintf(buf, "%s\n", DRVNAME);
|
|
}
|
|
|
|
|
|
static DEVICE_ATTR_RO(name);
|
|
|
|
static struct platform_device *amb_pdev;
|
|
|
|
static u8 amb_read_byte(struct i5k_amb_data *data, unsigned long offset)
|
|
{
|
|
return ioread8(data->amb_mmio + offset);
|
|
}
|
|
|
|
static void amb_write_byte(struct i5k_amb_data *data, unsigned long offset,
|
|
u8 val)
|
|
{
|
|
iowrite8(val, data->amb_mmio + offset);
|
|
}
|
|
|
|
static ssize_t show_amb_alarm(struct device *dev,
|
|
struct device_attribute *devattr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
struct i5k_amb_data *data = dev_get_drvdata(dev);
|
|
|
|
if (!(amb_read_byte(data, amb_reg_temp_status(attr->index)) & 0x20) &&
|
|
(amb_read_byte(data, amb_reg_temp_status(attr->index)) & 0x8))
|
|
return sprintf(buf, "1\n");
|
|
else
|
|
return sprintf(buf, "0\n");
|
|
}
|
|
|
|
static ssize_t store_amb_min(struct device *dev,
|
|
struct device_attribute *devattr,
|
|
const char *buf,
|
|
size_t count)
|
|
{
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
struct i5k_amb_data *data = dev_get_drvdata(dev);
|
|
unsigned long temp;
|
|
int ret = kstrtoul(buf, 10, &temp);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
temp = temp / 500;
|
|
if (temp > 255)
|
|
temp = 255;
|
|
|
|
amb_write_byte(data, amb_reg_temp_min(attr->index), temp);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t store_amb_mid(struct device *dev,
|
|
struct device_attribute *devattr,
|
|
const char *buf,
|
|
size_t count)
|
|
{
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
struct i5k_amb_data *data = dev_get_drvdata(dev);
|
|
unsigned long temp;
|
|
int ret = kstrtoul(buf, 10, &temp);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
temp = temp / 500;
|
|
if (temp > 255)
|
|
temp = 255;
|
|
|
|
amb_write_byte(data, amb_reg_temp_mid(attr->index), temp);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t store_amb_max(struct device *dev,
|
|
struct device_attribute *devattr,
|
|
const char *buf,
|
|
size_t count)
|
|
{
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
struct i5k_amb_data *data = dev_get_drvdata(dev);
|
|
unsigned long temp;
|
|
int ret = kstrtoul(buf, 10, &temp);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
temp = temp / 500;
|
|
if (temp > 255)
|
|
temp = 255;
|
|
|
|
amb_write_byte(data, amb_reg_temp_max(attr->index), temp);
|
|
return count;
|
|
}
|
|
|
|
static ssize_t show_amb_min(struct device *dev,
|
|
struct device_attribute *devattr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
struct i5k_amb_data *data = dev_get_drvdata(dev);
|
|
return sprintf(buf, "%d\n",
|
|
500 * amb_read_byte(data, amb_reg_temp_min(attr->index)));
|
|
}
|
|
|
|
static ssize_t show_amb_mid(struct device *dev,
|
|
struct device_attribute *devattr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
struct i5k_amb_data *data = dev_get_drvdata(dev);
|
|
return sprintf(buf, "%d\n",
|
|
500 * amb_read_byte(data, amb_reg_temp_mid(attr->index)));
|
|
}
|
|
|
|
static ssize_t show_amb_max(struct device *dev,
|
|
struct device_attribute *devattr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
struct i5k_amb_data *data = dev_get_drvdata(dev);
|
|
return sprintf(buf, "%d\n",
|
|
500 * amb_read_byte(data, amb_reg_temp_max(attr->index)));
|
|
}
|
|
|
|
static ssize_t show_amb_temp(struct device *dev,
|
|
struct device_attribute *devattr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
struct i5k_amb_data *data = dev_get_drvdata(dev);
|
|
return sprintf(buf, "%d\n",
|
|
500 * amb_read_byte(data, amb_reg_temp(attr->index)));
|
|
}
|
|
|
|
static ssize_t show_label(struct device *dev,
|
|
struct device_attribute *devattr,
|
|
char *buf)
|
|
{
|
|
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
|
|
|
|
return sprintf(buf, "Ch. %d DIMM %d\n", attr->index >> CHANNEL_SHIFT,
|
|
attr->index & DIMM_MASK);
|
|
}
|
|
|
|
static int i5k_amb_hwmon_init(struct platform_device *pdev)
|
|
{
|
|
int i, j, k, d = 0;
|
|
u16 c;
|
|
int res = 0;
|
|
int num_ambs = 0;
|
|
struct i5k_amb_data *data = platform_get_drvdata(pdev);
|
|
|
|
/* Count the number of AMBs found */
|
|
/* ignore the high-order bit, see "Ugly hack" comment above */
|
|
for (i = 0; i < MAX_MEM_CHANNELS; i++)
|
|
num_ambs += hweight16(data->amb_present[i] & 0x7fff);
|
|
|
|
/* Set up sysfs stuff */
|
|
data->attrs = kzalloc(array3_size(num_ambs, KNOBS_PER_AMB,
|
|
sizeof(*data->attrs)),
|
|
GFP_KERNEL);
|
|
if (!data->attrs)
|
|
return -ENOMEM;
|
|
data->num_attrs = 0;
|
|
|
|
for (i = 0; i < MAX_MEM_CHANNELS; i++) {
|
|
c = data->amb_present[i];
|
|
for (j = 0; j < REAL_MAX_AMBS_PER_CHANNEL; j++, c >>= 1) {
|
|
struct i5k_device_attribute *iattr;
|
|
|
|
k = amb_num_from_reg(i, j);
|
|
if (!(c & 0x1))
|
|
continue;
|
|
d++;
|
|
|
|
/* sysfs label */
|
|
iattr = data->attrs + data->num_attrs;
|
|
snprintf(iattr->name, AMB_SYSFS_NAME_LEN,
|
|
"temp%d_label", d);
|
|
iattr->s_attr.dev_attr.attr.name = iattr->name;
|
|
iattr->s_attr.dev_attr.attr.mode = 0444;
|
|
iattr->s_attr.dev_attr.show = show_label;
|
|
iattr->s_attr.index = k;
|
|
sysfs_attr_init(&iattr->s_attr.dev_attr.attr);
|
|
res = device_create_file(&pdev->dev,
|
|
&iattr->s_attr.dev_attr);
|
|
if (res)
|
|
goto exit_remove;
|
|
data->num_attrs++;
|
|
|
|
/* Temperature sysfs knob */
|
|
iattr = data->attrs + data->num_attrs;
|
|
snprintf(iattr->name, AMB_SYSFS_NAME_LEN,
|
|
"temp%d_input", d);
|
|
iattr->s_attr.dev_attr.attr.name = iattr->name;
|
|
iattr->s_attr.dev_attr.attr.mode = 0444;
|
|
iattr->s_attr.dev_attr.show = show_amb_temp;
|
|
iattr->s_attr.index = k;
|
|
sysfs_attr_init(&iattr->s_attr.dev_attr.attr);
|
|
res = device_create_file(&pdev->dev,
|
|
&iattr->s_attr.dev_attr);
|
|
if (res)
|
|
goto exit_remove;
|
|
data->num_attrs++;
|
|
|
|
/* Temperature min sysfs knob */
|
|
iattr = data->attrs + data->num_attrs;
|
|
snprintf(iattr->name, AMB_SYSFS_NAME_LEN,
|
|
"temp%d_min", d);
|
|
iattr->s_attr.dev_attr.attr.name = iattr->name;
|
|
iattr->s_attr.dev_attr.attr.mode = 0644;
|
|
iattr->s_attr.dev_attr.show = show_amb_min;
|
|
iattr->s_attr.dev_attr.store = store_amb_min;
|
|
iattr->s_attr.index = k;
|
|
sysfs_attr_init(&iattr->s_attr.dev_attr.attr);
|
|
res = device_create_file(&pdev->dev,
|
|
&iattr->s_attr.dev_attr);
|
|
if (res)
|
|
goto exit_remove;
|
|
data->num_attrs++;
|
|
|
|
/* Temperature mid sysfs knob */
|
|
iattr = data->attrs + data->num_attrs;
|
|
snprintf(iattr->name, AMB_SYSFS_NAME_LEN,
|
|
"temp%d_mid", d);
|
|
iattr->s_attr.dev_attr.attr.name = iattr->name;
|
|
iattr->s_attr.dev_attr.attr.mode = 0644;
|
|
iattr->s_attr.dev_attr.show = show_amb_mid;
|
|
iattr->s_attr.dev_attr.store = store_amb_mid;
|
|
iattr->s_attr.index = k;
|
|
sysfs_attr_init(&iattr->s_attr.dev_attr.attr);
|
|
res = device_create_file(&pdev->dev,
|
|
&iattr->s_attr.dev_attr);
|
|
if (res)
|
|
goto exit_remove;
|
|
data->num_attrs++;
|
|
|
|
/* Temperature max sysfs knob */
|
|
iattr = data->attrs + data->num_attrs;
|
|
snprintf(iattr->name, AMB_SYSFS_NAME_LEN,
|
|
"temp%d_max", d);
|
|
iattr->s_attr.dev_attr.attr.name = iattr->name;
|
|
iattr->s_attr.dev_attr.attr.mode = 0644;
|
|
iattr->s_attr.dev_attr.show = show_amb_max;
|
|
iattr->s_attr.dev_attr.store = store_amb_max;
|
|
iattr->s_attr.index = k;
|
|
sysfs_attr_init(&iattr->s_attr.dev_attr.attr);
|
|
res = device_create_file(&pdev->dev,
|
|
&iattr->s_attr.dev_attr);
|
|
if (res)
|
|
goto exit_remove;
|
|
data->num_attrs++;
|
|
|
|
/* Temperature alarm sysfs knob */
|
|
iattr = data->attrs + data->num_attrs;
|
|
snprintf(iattr->name, AMB_SYSFS_NAME_LEN,
|
|
"temp%d_alarm", d);
|
|
iattr->s_attr.dev_attr.attr.name = iattr->name;
|
|
iattr->s_attr.dev_attr.attr.mode = 0444;
|
|
iattr->s_attr.dev_attr.show = show_amb_alarm;
|
|
iattr->s_attr.index = k;
|
|
sysfs_attr_init(&iattr->s_attr.dev_attr.attr);
|
|
res = device_create_file(&pdev->dev,
|
|
&iattr->s_attr.dev_attr);
|
|
if (res)
|
|
goto exit_remove;
|
|
data->num_attrs++;
|
|
}
|
|
}
|
|
|
|
res = device_create_file(&pdev->dev, &dev_attr_name);
|
|
if (res)
|
|
goto exit_remove;
|
|
|
|
data->hwmon_dev = hwmon_device_register(&pdev->dev);
|
|
if (IS_ERR(data->hwmon_dev)) {
|
|
res = PTR_ERR(data->hwmon_dev);
|
|
goto exit_remove;
|
|
}
|
|
|
|
return res;
|
|
|
|
exit_remove:
|
|
device_remove_file(&pdev->dev, &dev_attr_name);
|
|
for (i = 0; i < data->num_attrs; i++)
|
|
device_remove_file(&pdev->dev, &data->attrs[i].s_attr.dev_attr);
|
|
kfree(data->attrs);
|
|
|
|
return res;
|
|
}
|
|
|
|
static int i5k_amb_add(void)
|
|
{
|
|
int res;
|
|
|
|
/* only ever going to be one of these */
|
|
amb_pdev = platform_device_alloc(DRVNAME, 0);
|
|
if (!amb_pdev)
|
|
return -ENOMEM;
|
|
|
|
res = platform_device_add(amb_pdev);
|
|
if (res)
|
|
goto err;
|
|
return 0;
|
|
|
|
err:
|
|
platform_device_put(amb_pdev);
|
|
return res;
|
|
}
|
|
|
|
static int i5k_find_amb_registers(struct i5k_amb_data *data,
|
|
unsigned long devid)
|
|
{
|
|
struct pci_dev *pcidev;
|
|
u32 val32;
|
|
int res = -ENODEV;
|
|
|
|
/* Find AMB register memory space */
|
|
pcidev = pci_get_device(PCI_VENDOR_ID_INTEL,
|
|
devid,
|
|
NULL);
|
|
if (!pcidev)
|
|
return -ENODEV;
|
|
|
|
pci_read_config_dword(pcidev, I5K_REG_AMB_BASE_ADDR, &val32);
|
|
if (val32 == (u32)~0)
|
|
goto out;
|
|
data->amb_base = val32;
|
|
|
|
pci_read_config_dword(pcidev, I5K_REG_AMB_LEN_ADDR, &val32);
|
|
if (val32 == (u32)~0)
|
|
goto out;
|
|
data->amb_len = val32;
|
|
|
|
/* Is it big enough? */
|
|
if (data->amb_len < AMB_CONFIG_SIZE * MAX_AMBS) {
|
|
dev_err(&pcidev->dev, "AMB region too small!\n");
|
|
goto out;
|
|
}
|
|
|
|
res = 0;
|
|
out:
|
|
pci_dev_put(pcidev);
|
|
return res;
|
|
}
|
|
|
|
static int i5k_channel_probe(u16 *amb_present, unsigned long dev_id)
|
|
{
|
|
struct pci_dev *pcidev;
|
|
u16 val16;
|
|
int res = -ENODEV;
|
|
|
|
/* Copy the DIMM presence map for these two channels */
|
|
pcidev = pci_get_device(PCI_VENDOR_ID_INTEL, dev_id, NULL);
|
|
if (!pcidev)
|
|
return -ENODEV;
|
|
|
|
pci_read_config_word(pcidev, I5K_REG_CHAN0_PRESENCE_ADDR, &val16);
|
|
if (val16 == (u16)~0)
|
|
goto out;
|
|
amb_present[0] = val16;
|
|
|
|
pci_read_config_word(pcidev, I5K_REG_CHAN1_PRESENCE_ADDR, &val16);
|
|
if (val16 == (u16)~0)
|
|
goto out;
|
|
amb_present[1] = val16;
|
|
|
|
res = 0;
|
|
|
|
out:
|
|
pci_dev_put(pcidev);
|
|
return res;
|
|
}
|
|
|
|
static struct {
|
|
unsigned long err;
|
|
unsigned long fbd0;
|
|
} chipset_ids[] = {
|
|
{ PCI_DEVICE_ID_INTEL_5000_ERR, PCI_DEVICE_ID_INTEL_5000_FBD0 },
|
|
{ PCI_DEVICE_ID_INTEL_5400_ERR, PCI_DEVICE_ID_INTEL_5400_FBD0 },
|
|
{ 0, 0 }
|
|
};
|
|
|
|
#ifdef MODULE
|
|
static const struct pci_device_id i5k_amb_ids[] = {
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5000_ERR) },
|
|
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_5400_ERR) },
|
|
{ 0, }
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, i5k_amb_ids);
|
|
#endif
|
|
|
|
static int i5k_amb_probe(struct platform_device *pdev)
|
|
{
|
|
struct i5k_amb_data *data;
|
|
struct resource *reso;
|
|
int i, res;
|
|
|
|
data = kzalloc(sizeof(*data), GFP_KERNEL);
|
|
if (!data)
|
|
return -ENOMEM;
|
|
|
|
/* Figure out where the AMB registers live */
|
|
i = 0;
|
|
do {
|
|
res = i5k_find_amb_registers(data, chipset_ids[i].err);
|
|
if (res == 0)
|
|
break;
|
|
i++;
|
|
} while (chipset_ids[i].err);
|
|
|
|
if (res)
|
|
goto err;
|
|
|
|
/* Copy the DIMM presence map for the first two channels */
|
|
res = i5k_channel_probe(&data->amb_present[0], chipset_ids[i].fbd0);
|
|
if (res)
|
|
goto err;
|
|
|
|
/* Copy the DIMM presence map for the optional second two channels */
|
|
i5k_channel_probe(&data->amb_present[2], chipset_ids[i].fbd0 + 1);
|
|
|
|
/* Set up resource regions */
|
|
reso = request_mem_region(data->amb_base, data->amb_len, DRVNAME);
|
|
if (!reso) {
|
|
res = -EBUSY;
|
|
goto err;
|
|
}
|
|
|
|
data->amb_mmio = ioremap(data->amb_base, data->amb_len);
|
|
if (!data->amb_mmio) {
|
|
res = -EBUSY;
|
|
goto err_map_failed;
|
|
}
|
|
|
|
platform_set_drvdata(pdev, data);
|
|
|
|
res = i5k_amb_hwmon_init(pdev);
|
|
if (res)
|
|
goto err_init_failed;
|
|
|
|
return res;
|
|
|
|
err_init_failed:
|
|
iounmap(data->amb_mmio);
|
|
err_map_failed:
|
|
release_mem_region(data->amb_base, data->amb_len);
|
|
err:
|
|
kfree(data);
|
|
return res;
|
|
}
|
|
|
|
static int i5k_amb_remove(struct platform_device *pdev)
|
|
{
|
|
int i;
|
|
struct i5k_amb_data *data = platform_get_drvdata(pdev);
|
|
|
|
hwmon_device_unregister(data->hwmon_dev);
|
|
device_remove_file(&pdev->dev, &dev_attr_name);
|
|
for (i = 0; i < data->num_attrs; i++)
|
|
device_remove_file(&pdev->dev, &data->attrs[i].s_attr.dev_attr);
|
|
kfree(data->attrs);
|
|
iounmap(data->amb_mmio);
|
|
release_mem_region(data->amb_base, data->amb_len);
|
|
kfree(data);
|
|
return 0;
|
|
}
|
|
|
|
static struct platform_driver i5k_amb_driver = {
|
|
.driver = {
|
|
.name = DRVNAME,
|
|
},
|
|
.probe = i5k_amb_probe,
|
|
.remove = i5k_amb_remove,
|
|
};
|
|
|
|
static int __init i5k_amb_init(void)
|
|
{
|
|
int res;
|
|
|
|
res = platform_driver_register(&i5k_amb_driver);
|
|
if (res)
|
|
return res;
|
|
|
|
res = i5k_amb_add();
|
|
if (res)
|
|
platform_driver_unregister(&i5k_amb_driver);
|
|
|
|
return res;
|
|
}
|
|
|
|
static void __exit i5k_amb_exit(void)
|
|
{
|
|
platform_device_unregister(amb_pdev);
|
|
platform_driver_unregister(&i5k_amb_driver);
|
|
}
|
|
|
|
MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>");
|
|
MODULE_DESCRIPTION("Intel 5000 chipset FB-DIMM AMB temperature sensor");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
module_init(i5k_amb_init);
|
|
module_exit(i5k_amb_exit);
|