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hwmon: (dell-smm-hwmon) Move variables into a driver private data structure

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Move Variables into a driver private data structure.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://lore.kernel.org/r/20210728221557.8891-5-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Armin Wolf 2021-07-29 00:15:55 +02:00 committed by Guenter Roeck
parent a2cb66b476
commit ba04d73c26
1 changed files with 152 additions and 125 deletions
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277
drivers/hwmon/dell-smm-hwmon.c
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@ -60,18 +60,20 @@
#define I8K_POWER_AC 0x05
#define I8K_POWER_BATTERY 0x01
static DEFINE_MUTEX(i8k_mutex);
static char bios_version[4];
static char bios_machineid[16];
static struct device *i8k_hwmon_dev;
static u32 i8k_hwmon_flags;
static uint i8k_fan_mult = I8K_FAN_MULT;
static uint i8k_pwm_mult;
static uint i8k_fan_max = I8K_FAN_HIGH;
static bool disallow_fan_type_call;
static bool disallow_fan_support;
static unsigned int manual_fan;
static unsigned int auto_fan;
struct dell_smm_data {
struct mutex i8k_mutex; /* lock for sensors writes */
char bios_version[4];
char bios_machineid[16];
u32 i8k_hwmon_flags;
uint i8k_fan_mult;
uint i8k_pwm_mult;
uint i8k_fan_max;
bool disallow_fan_type_call;
bool disallow_fan_support;
unsigned int manual_fan;
unsigned int auto_fan;
int types[3];
};
#define I8K_HWMON_HAVE_TEMP1 (1 << 0)
#define I8K_HWMON_HAVE_TEMP2 (1 << 1)
@ -240,11 +242,11 @@ static int i8k_smm(struct smm_regs *regs)
/*
* Read the fan status.
*/
static int i8k_get_fan_status(int fan)
static int i8k_get_fan_status(const struct dell_smm_data *data, int fan)
{
struct smm_regs regs = { .eax = I8K_SMM_GET_FAN, };
if (disallow_fan_support)
if (data->disallow_fan_support)
return -EINVAL;
regs.ebx = fan & 0xff;
@ -254,84 +256,82 @@ static int i8k_get_fan_status(int fan)
/*
* Read the fan speed in RPM.
*/
static int i8k_get_fan_speed(int fan)
static int i8k_get_fan_speed(const struct dell_smm_data *data, int fan)
{
struct smm_regs regs = { .eax = I8K_SMM_GET_SPEED, };
if (disallow_fan_support)
if (data->disallow_fan_support)
return -EINVAL;
regs.ebx = fan & 0xff;
return i8k_smm(&regs) ? : (regs.eax & 0xffff) * i8k_fan_mult;
return i8k_smm(&regs) ? : (regs.eax & 0xffff) * data->i8k_fan_mult;
}
/*
* Read the fan type.
*/
static int _i8k_get_fan_type(int fan)
static int _i8k_get_fan_type(const struct dell_smm_data *data, int fan)
{
struct smm_regs regs = { .eax = I8K_SMM_GET_FAN_TYPE, };
if (disallow_fan_support || disallow_fan_type_call)
if (data->disallow_fan_support || data->disallow_fan_type_call)
return -EINVAL;
regs.ebx = fan & 0xff;
return i8k_smm(&regs) ? : regs.eax & 0xff;
}
static int i8k_get_fan_type(int fan)
static int i8k_get_fan_type(struct dell_smm_data *data, int fan)
{
/* I8K_SMM_GET_FAN_TYPE SMM call is expensive, so cache values */
static int types[3] = { INT_MIN, INT_MIN, INT_MIN };
if (data->types[fan] == INT_MIN)
data->types[fan] = _i8k_get_fan_type(data, fan);
if (types[fan] == INT_MIN)
types[fan] = _i8k_get_fan_type(fan);
return types[fan];
return data->types[fan];
}
/*
* Read the fan nominal rpm for specific fan speed.
*/
static int i8k_get_fan_nominal_speed(int fan, int speed)
static int i8k_get_fan_nominal_speed(const struct dell_smm_data *data, int fan, int speed)
{
struct smm_regs regs = { .eax = I8K_SMM_GET_NOM_SPEED, };
if (disallow_fan_support)
if (data->disallow_fan_support)
return -EINVAL;
regs.ebx = (fan & 0xff) | (speed << 8);
return i8k_smm(&regs) ? : (regs.eax & 0xffff) * i8k_fan_mult;
return i8k_smm(&regs) ? : (regs.eax & 0xffff) * data->i8k_fan_mult;
}
/*
* Enable or disable automatic BIOS fan control support
*/
static int i8k_enable_fan_auto_mode(bool enable)
static int i8k_enable_fan_auto_mode(const struct dell_smm_data *data, bool enable)
{
struct smm_regs regs = { };
if (disallow_fan_support)
if (data->disallow_fan_support)
return -EINVAL;
regs.eax = enable ? auto_fan : manual_fan;
regs.eax = enable ? data->auto_fan : data->manual_fan;
return i8k_smm(&regs);
}
/*
* Set the fan speed (off, low, high). Returns the new fan status.
*/
static int i8k_set_fan(int fan, int speed)
static int i8k_set_fan(const struct dell_smm_data *data, int fan, int speed)
{
struct smm_regs regs = { .eax = I8K_SMM_SET_FAN, };
if (disallow_fan_support)
if (data->disallow_fan_support)
return -EINVAL;
speed = (speed < 0) ? 0 : ((speed > i8k_fan_max) ? i8k_fan_max : speed);
speed = (speed < 0) ? 0 : ((speed > data->i8k_fan_max) ? data->i8k_fan_max : speed);
regs.ebx = (fan & 0xff) | (speed << 8);
return i8k_smm(&regs) ? : i8k_get_fan_status(fan);
return i8k_smm(&regs) ? : i8k_get_fan_status(data, fan);
}
static int i8k_get_temp_type(int sensor)
@ -442,7 +442,7 @@ static int i8k_get_power_status(void)
*/
static int
i8k_ioctl_unlocked(struct file *fp, unsigned int cmd, unsigned long arg)
i8k_ioctl_unlocked(struct file *fp, struct dell_smm_data *data, unsigned int cmd, unsigned long arg)
{
int val = 0;
int speed;
@ -454,12 +454,12 @@ i8k_ioctl_unlocked(struct file *fp, unsigned int cmd, unsigned long arg)
switch (cmd) {
case I8K_BIOS_VERSION:
if (!isdigit(bios_version[0]) || !isdigit(bios_version[1]) ||
!isdigit(bios_version[2]))
if (!isdigit(data->bios_version[0]) || !isdigit(data->bios_version[1]) ||
!isdigit(data->bios_version[2]))
return -EINVAL;
val = (bios_version[0] << 16) |
(bios_version[1] << 8) | bios_version[2];
val = (data->bios_version[0] << 16) |
(data->bios_version[1] << 8) | data->bios_version[2];
break;
case I8K_MACHINE_ID:
@ -467,7 +467,7 @@ i8k_ioctl_unlocked(struct file *fp, unsigned int cmd, unsigned long arg)
return -EPERM;
memset(buff, 0, sizeof(buff));
strlcpy(buff, bios_machineid, sizeof(buff));
strscpy(buff, data->bios_machineid, sizeof(buff));
break;
case I8K_FN_STATUS:
@ -486,14 +486,14 @@ i8k_ioctl_unlocked(struct file *fp, unsigned int cmd, unsigned long arg)
if (copy_from_user(&val, argp, sizeof(int)))
return -EFAULT;
val = i8k_get_fan_speed(val);
val = i8k_get_fan_speed(data, val);
break;
case I8K_GET_FAN:
if (copy_from_user(&val, argp, sizeof(int)))
return -EFAULT;
val = i8k_get_fan_status(val);
val = i8k_get_fan_status(data, val);
break;
case I8K_SET_FAN:
@ -506,7 +506,7 @@ i8k_ioctl_unlocked(struct file *fp, unsigned int cmd, unsigned long arg)
if (copy_from_user(&speed, argp + 1, sizeof(int)))
return -EFAULT;
val = i8k_set_fan(val, speed);
val = i8k_set_fan(data, val, speed);
break;
default:
@ -539,11 +539,12 @@ i8k_ioctl_unlocked(struct file *fp, unsigned int cmd, unsigned long arg)
static long i8k_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
{
struct dell_smm_data *data = PDE_DATA(file_inode(fp));
long ret;
mutex_lock(&i8k_mutex);
ret = i8k_ioctl_unlocked(fp, cmd, arg);
mutex_unlock(&i8k_mutex);
mutex_lock(&data->i8k_mutex);
ret = i8k_ioctl_unlocked(fp, data, cmd, arg);
mutex_unlock(&data->i8k_mutex);
return ret;
}
@ -553,17 +554,18 @@ static long i8k_ioctl(struct file *fp, unsigned int cmd, unsigned long arg)
*/
static int i8k_proc_show(struct seq_file *seq, void *offset)
{
struct dell_smm_data *data = seq->private;
int fn_key, cpu_temp, ac_power;
int left_fan, right_fan, left_speed, right_speed;
cpu_temp = i8k_get_temp(0); /* 11100 µs */
left_fan = i8k_get_fan_status(I8K_FAN_LEFT); /* 580 µs */
right_fan = i8k_get_fan_status(I8K_FAN_RIGHT); /* 580 µs */
left_speed = i8k_get_fan_speed(I8K_FAN_LEFT); /* 580 µs */
right_speed = i8k_get_fan_speed(I8K_FAN_RIGHT); /* 580 µs */
fn_key = i8k_get_fn_status(); /* 750 µs */
cpu_temp = i8k_get_temp(0); /* 11100 µs */
left_fan = i8k_get_fan_status(data, I8K_FAN_LEFT); /* 580 µs */
right_fan = i8k_get_fan_status(data, I8K_FAN_RIGHT); /* 580 µs */
left_speed = i8k_get_fan_speed(data, I8K_FAN_LEFT); /* 580 µs */
right_speed = i8k_get_fan_speed(data, I8K_FAN_RIGHT); /* 580 µs */
fn_key = i8k_get_fn_status(); /* 750 µs */
if (power_status)
ac_power = i8k_get_power_status(); /* 14700 µs */
ac_power = i8k_get_power_status(); /* 14700 µs */
else
ac_power = -1;
@ -583,8 +585,8 @@ static int i8k_proc_show(struct seq_file *seq, void *offset)
*/
seq_printf(seq, "%s %s %s %d %d %d %d %d %d %d\n",
I8K_PROC_FMT,
bios_version,
(restricted && !capable(CAP_SYS_ADMIN)) ? "-1" : bios_machineid,
data->bios_version,
(restricted && !capable(CAP_SYS_ADMIN)) ? "-1" : data->bios_machineid,
cpu_temp,
left_fan, right_fan, left_speed, right_speed,
ac_power, fn_key);
@ -594,7 +596,7 @@ static int i8k_proc_show(struct seq_file *seq, void *offset)
static int i8k_open_fs(struct inode *inode, struct file *file)
{
return single_open(file, i8k_proc_show, NULL);
return single_open(file, i8k_proc_show, PDE_DATA(inode));
}
static const struct proc_ops i8k_proc_ops = {
@ -612,8 +614,10 @@ static void i8k_exit_procfs(void *param)
static void __init i8k_init_procfs(struct device *dev)
{
struct dell_smm_data *data = dev_get_drvdata(dev);
/* Register the proc entry */
proc_create("i8k", 0, NULL, &i8k_proc_ops);
proc_create_data("i8k", 0, NULL, &i8k_proc_ops, data);
devm_add_action_or_reset(dev, i8k_exit_procfs, NULL);
}
@ -670,6 +674,7 @@ static ssize_t i8k_hwmon_fan_label_show(struct device *dev,
struct device_attribute *devattr,
char *buf)
{
struct dell_smm_data *data = dev_get_drvdata(dev);
static const char * const labels[] = {
"Processor Fan",
"Motherboard Fan",
@ -682,7 +687,7 @@ static ssize_t i8k_hwmon_fan_label_show(struct device *dev,
bool dock = false;
int type;
type = i8k_get_fan_type(index);
type = i8k_get_fan_type(data, index);
if (type < 0)
return type;
@ -700,10 +705,11 @@ static ssize_t i8k_hwmon_fan_label_show(struct device *dev,
static ssize_t i8k_hwmon_fan_show(struct device *dev,
struct device_attribute *devattr, char *buf)
{
struct dell_smm_data *data = dev_get_drvdata(dev);
int index = to_sensor_dev_attr(devattr)->index;
int fan_speed;
fan_speed = i8k_get_fan_speed(index);
fan_speed = i8k_get_fan_speed(data, index);
if (fan_speed < 0)
return fan_speed;
return sprintf(buf, "%d\n", fan_speed);
@ -712,19 +718,21 @@ static ssize_t i8k_hwmon_fan_show(struct device *dev,
static ssize_t i8k_hwmon_pwm_show(struct device *dev,
struct device_attribute *devattr, char *buf)
{
struct dell_smm_data *data = dev_get_drvdata(dev);
int index = to_sensor_dev_attr(devattr)->index;
int status;
status = i8k_get_fan_status(index);
status = i8k_get_fan_status(data, index);
if (status < 0)
return -EIO;
return sprintf(buf, "%d\n", clamp_val(status * i8k_pwm_mult, 0, 255));
return sprintf(buf, "%d\n", clamp_val(status * data->i8k_pwm_mult, 0, 255));
}
static ssize_t i8k_hwmon_pwm_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct dell_smm_data *data = dev_get_drvdata(dev);
int index = to_sensor_dev_attr(attr)->index;
unsigned long val;
int err;
@ -732,11 +740,11 @@ static ssize_t i8k_hwmon_pwm_store(struct device *dev,
err = kstrtoul(buf, 10, &val);
if (err)
return err;
val = clamp_val(DIV_ROUND_CLOSEST(val, i8k_pwm_mult), 0, i8k_fan_max);
val = clamp_val(DIV_ROUND_CLOSEST(val, data->i8k_pwm_mult), 0, data->i8k_fan_max);
mutex_lock(&i8k_mutex);
err = i8k_set_fan(index, val);
mutex_unlock(&i8k_mutex);
mutex_lock(&data->i8k_mutex);
err = i8k_set_fan(data, index, val);
mutex_unlock(&data->i8k_mutex);
return err < 0 ? -EIO : count;
}
@ -745,11 +753,12 @@ static ssize_t i8k_hwmon_pwm_enable_store(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct dell_smm_data *data = dev_get_drvdata(dev);
int err;
bool enable;
unsigned long val;
if (!auto_fan)
if (!data->auto_fan)
return -ENODEV;
err = kstrtoul(buf, 10, &val);
@ -763,9 +772,9 @@ static ssize_t i8k_hwmon_pwm_enable_store(struct device *dev,
else
return -EINVAL;
mutex_lock(&i8k_mutex);
err = i8k_enable_fan_auto_mode(enable);
mutex_unlock(&i8k_mutex);
mutex_lock(&data->i8k_mutex);
err = i8k_enable_fan_auto_mode(data, enable);
mutex_unlock(&data->i8k_mutex);
return err ? err : count;
}
@ -838,53 +847,56 @@ static struct attribute *i8k_attrs[] = {
static umode_t i8k_is_visible(struct kobject *kobj, struct attribute *attr,
int index)
{
if (disallow_fan_support && index >= 20)
struct device *dev = kobj_to_dev(kobj);
struct dell_smm_data *data = dev_get_drvdata(dev);
if (data->disallow_fan_support && index >= 20)
return 0;
if (disallow_fan_type_call &&
if (data->disallow_fan_type_call &&
(index == 21 || index == 25 || index == 28))
return 0;
if (index >= 0 && index <= 1 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP1))
!(data->i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP1))
return 0;
if (index >= 2 && index <= 3 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP2))
!(data->i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP2))
return 0;
if (index >= 4 && index <= 5 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP3))
!(data->i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP3))
return 0;
if (index >= 6 && index <= 7 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP4))
!(data->i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP4))
return 0;
if (index >= 8 && index <= 9 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP5))
!(data->i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP5))
return 0;
if (index >= 10 && index <= 11 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP6))
!(data->i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP6))
return 0;
if (index >= 12 && index <= 13 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP7))
!(data->i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP7))
return 0;
if (index >= 14 && index <= 15 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP8))
!(data->i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP8))
return 0;
if (index >= 16 && index <= 17 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP9))
!(data->i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP9))
return 0;
if (index >= 18 && index <= 19 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP10))
!(data->i8k_hwmon_flags & I8K_HWMON_HAVE_TEMP10))
return 0;
if (index >= 20 && index <= 23 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_FAN1))
!(data->i8k_hwmon_flags & I8K_HWMON_HAVE_FAN1))
return 0;
if (index >= 24 && index <= 26 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_FAN2))
!(data->i8k_hwmon_flags & I8K_HWMON_HAVE_FAN2))
return 0;
if (index >= 27 && index <= 29 &&
!(i8k_hwmon_flags & I8K_HWMON_HAVE_FAN3))
!(data->i8k_hwmon_flags & I8K_HWMON_HAVE_FAN3))
return 0;
if (index == 23 && !auto_fan)
if (index == 23 && !data->auto_fan)
return 0;
return attr->mode;
@ -898,65 +910,65 @@ __ATTRIBUTE_GROUPS(i8k);
static int __init dell_smm_init_hwmon(struct device *dev)
{
struct dell_smm_data *data = dev_get_drvdata(dev);
struct device *i8k_hwmon_dev;
int err;
i8k_hwmon_flags = 0;
/* CPU temperature attributes, if temperature type is OK */
err = i8k_get_temp_type(0);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP1;
data->i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP1;
/* check for additional temperature sensors */
err = i8k_get_temp_type(1);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP2;
data->i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP2;
err = i8k_get_temp_type(2);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP3;
data->i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP3;
err = i8k_get_temp_type(3);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP4;
data->i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP4;
err = i8k_get_temp_type(4);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP5;
data->i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP5;
err = i8k_get_temp_type(5);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP6;
data->i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP6;
err = i8k_get_temp_type(6);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP7;
data->i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP7;
err = i8k_get_temp_type(7);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP8;
data->i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP8;
err = i8k_get_temp_type(8);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP9;
data->i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP9;
err = i8k_get_temp_type(9);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP10;
data->i8k_hwmon_flags |= I8K_HWMON_HAVE_TEMP10;
/* First fan attributes, if fan status or type is OK */
err = i8k_get_fan_status(0);
err = i8k_get_fan_status(data, 0);
if (err < 0)
err = i8k_get_fan_type(0);
err = i8k_get_fan_type(data, 0);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN1;
data->i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN1;
/* Second fan attributes, if fan status or type is OK */
err = i8k_get_fan_status(1);
err = i8k_get_fan_status(data, 1);
if (err < 0)
err = i8k_get_fan_type(1);
err = i8k_get_fan_type(data, 1);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN2;
data->i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN2;
/* Third fan attributes, if fan status or type is OK */
err = i8k_get_fan_status(2);
err = i8k_get_fan_status(data, 2);
if (err < 0)
err = i8k_get_fan_type(2);
err = i8k_get_fan_type(data, 2);
if (err >= 0)
i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN3;
data->i8k_hwmon_flags |= I8K_HWMON_HAVE_FAN3;
i8k_hwmon_dev = devm_hwmon_device_register_with_groups(dev, "dell_smm", NULL, i8k_groups);
i8k_hwmon_dev = devm_hwmon_device_register_with_groups(dev, "dell_smm", data, i8k_groups);
return PTR_ERR_OR_ZERO(i8k_hwmon_dev);
}
@ -1217,25 +1229,38 @@ static struct dmi_system_id i8k_whitelist_fan_control[] __initdata = {
static int __init dell_smm_probe(struct platform_device *pdev)
{
struct dell_smm_data *data;
const struct dmi_system_id *id, *fan_control;
int fan, ret;
data = devm_kzalloc(&pdev->dev, sizeof(struct dell_smm_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
mutex_init(&data->i8k_mutex);
data->i8k_fan_mult = I8K_FAN_MULT;
data->i8k_fan_max = I8K_FAN_HIGH;
data->types[0] = INT_MIN;
data->types[1] = INT_MIN;
data->types[2] = INT_MIN;
platform_set_drvdata(pdev, data);
if (dmi_check_system(i8k_blacklist_fan_support_dmi_table)) {
pr_warn("broken Dell BIOS detected, disallow fan support\n");
dev_warn(&pdev->dev, "broken Dell BIOS detected, disallow fan support\n");
if (!force)
disallow_fan_support = true;
data->disallow_fan_support = true;
}
if (dmi_check_system(i8k_blacklist_fan_type_dmi_table)) {
pr_warn("broken Dell BIOS detected, disallow fan type call\n");
dev_warn(&pdev->dev, "broken Dell BIOS detected, disallow fan type call\n");
if (!force)
disallow_fan_type_call = true;
data->disallow_fan_type_call = true;
}
strscpy(bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION),
sizeof(bios_version));
strscpy(bios_machineid, i8k_get_dmi_data(DMI_PRODUCT_SERIAL),
sizeof(bios_machineid));
strscpy(data->bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION),
sizeof(data->bios_version));
strscpy(data->bios_machineid, i8k_get_dmi_data(DMI_PRODUCT_SERIAL),
sizeof(data->bios_machineid));
/*
* Set fan multiplier and maximal fan speed from dmi config
@ -1247,20 +1272,21 @@ static int __init dell_smm_probe(struct platform_device *pdev)
if (!fan_mult && conf->fan_mult)
fan_mult = conf->fan_mult;
if (!fan_max && conf->fan_max)
fan_max = conf->fan_max;
}
i8k_fan_max = fan_max ? : I8K_FAN_HIGH; /* Must not be 0 */
i8k_pwm_mult = DIV_ROUND_UP(255, i8k_fan_max);
data->i8k_fan_max = fan_max ? : I8K_FAN_HIGH; /* Must not be 0 */
data->i8k_pwm_mult = DIV_ROUND_UP(255, data->i8k_fan_max);
fan_control = dmi_first_match(i8k_whitelist_fan_control);
if (fan_control && fan_control->driver_data) {
const struct i8k_fan_control_data *data = fan_control->driver_data;
const struct i8k_fan_control_data *control = fan_control->driver_data;
manual_fan = data->manual_fan;
auto_fan = data->auto_fan;
pr_info("enabling support for setting automatic/manual fan control\n");
data->manual_fan = control->manual_fan;
data->auto_fan = control->auto_fan;
dev_info(&pdev->dev, "enabling support for setting automatic/manual fan control\n");
}
if (!fan_mult) {
@ -1269,16 +1295,17 @@ static int __init dell_smm_probe(struct platform_device *pdev)
* If fan reports rpm value too high then set multiplier to 1
*/
for (fan = 0; fan < 2; ++fan) {
ret = i8k_get_fan_nominal_speed(fan, i8k_fan_max);
ret = i8k_get_fan_nominal_speed(data, fan, data->i8k_fan_max);
if (ret < 0)
continue;
if (ret > I8K_FAN_MAX_RPM)
i8k_fan_mult = 1;
data->i8k_fan_mult = 1;
break;
}
} else {
/* Fan multiplier was specified in module param or in dmi */
i8k_fan_mult = fan_mult;
data->i8k_fan_mult = fan_mult;
}
ret = dell_smm_init_hwmon(&pdev->dev);