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Merge tag 'hwmon-for-linus-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Browse Source 
Pull hwmon updates from Guenter Roeck:

 - New hwmon registration API, including ports of several drivers to the
   new API

 - New hwmon driver for APM X-Gene SoC

 - Added support for UCD90160, DPS-460, DPS-800, and SGD009 PMBUs chips

 - Various cleanups, minor improvements, and fixes in several drivers

* tag 'hwmon-for-linus-v4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (54 commits)
  hwmon: (nct6775) Add support for multiple virtual temperature sources
  hwmon: (adt7470) No need for additional synchronization on kthread_stop()
  hwmon: (lm95241) Update module description to include LM95231
  hwmon: (lm95245) Select REGMAP_I2C
  hwmon: (ibmpowernv) Fix label for cores numbers not threads
  hwmon: (adt7470) Allow faster removal
  hwmon: (adt7470) Add write support to alarm_mask
  hwmon: (xgene) access mailbox as RAM
  hwmon: (lm95245) Use new hwmon registration API
  hwmon: (lm95241) Convert to use new hwmon registration API
  hwmon: (jc42) Convert to use new hwmon registration API
  hwmon: (max31790) Convert to use new hwmon registration API
  hwmon: (nct7904) Convert to use new hwmon registration API
  hwmon: (ltc4245) Convert to use new hwmon registration API
  hwmon: (tmp421) Convert to use new hwmon registration API
  hwmon: (tmp102) Convert to use new hwmon registration API
  hwmon: (lm90) Convert to use new hwmon registration API
  hwmon: (lm75) Convert to use new hwmon registration API
  hwmon: (xgene) Fix crash when alarm occurs before driver probe
  hwmon: (iio_hwmon) defer probe when no channel is found
  ...
This commit is contained in:
Linus Torvalds
2016-10-04 10:56:14 -07:00
parent f80fa1822d 7ce4190c4c
commit 77b0a4aa07
36 changed files with 4748 additions and 2284 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/hwmon/Kconfig
+8 -2
View File
@@ -969,7 +969,6 @@ config SENSORS_LM73
config SENSORS_LM75
tristate "National Semiconductor LM75 and compatibles"
depends on I2C
depends on THERMAL || !THERMAL_OF
select REGMAP_I2C
help
If you say yes here you get support for one common type of
@@ -1119,6 +1118,7 @@ config SENSORS_LM95241
config SENSORS_LM95245
tristate "National Semiconductor LM95245 and compatibles"
depends on I2C
select REGMAP_I2C
help
If you say yes here you get support for LM95235 and LM95245
temperature sensor chips.
@@ -1572,7 +1572,6 @@ config SENSORS_THMC50
config SENSORS_TMP102
tristate "Texas Instruments TMP102"
depends on I2C
depends on THERMAL || !THERMAL_OF
select REGMAP_I2C
help
If you say yes here you get support for Texas Instruments TMP102
@@ -1823,6 +1822,13 @@ config SENSORS_ULTRA45
This driver provides support for the Ultra45 workstation environmental
sensors.
config SENSORS_XGENE
tristate "APM X-Gene SoC hardware monitoring driver"
depends on XGENE_SLIMPRO_MBOX || PCC
help
If you say yes here you get support for the temperature
and power sensors for APM X-Gene SoC.
if ACPI
comment "ACPI drivers"
drivers/hwmon/Makefile
+1
View File
@@ -165,6 +165,7 @@ obj-$(CONFIG_SENSORS_W83L785TS) += w83l785ts.o
obj-$(CONFIG_SENSORS_W83L786NG) += w83l786ng.o
obj-$(CONFIG_SENSORS_WM831X) += wm831x-hwmon.o
obj-$(CONFIG_SENSORS_WM8350) += wm8350-hwmon.o
obj-$(CONFIG_SENSORS_XGENE) += xgene-hwmon.o
obj-$(CONFIG_PMBUS) += pmbus/
drivers/hwmon/adt7411.c
+42 -7
View File
@@ -7,8 +7,7 @@
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* TODO: SPI, support for external temperature sensor
* use power-down mode for suspend?, interrupt handling?
* TODO: SPI, use power-down mode for suspend?, interrupt handling?
*/
#include <linux/kernel.h>
@@ -31,6 +30,7 @@
#define ADT7411_REG_CFG1 0x18
#define ADT7411_CFG1_START_MONITOR (1 << 0)
#define ADT7411_CFG1_RESERVED_BIT1 (1 << 1)
#define ADT7411_CFG1_EXT_TDM (1 << 2)
#define ADT7411_CFG1_RESERVED_BIT3 (1 << 3)
#define ADT7411_REG_CFG2 0x19
@@ -57,6 +57,7 @@ struct adt7411_data {
unsigned long next_update;
int vref_cached;
struct i2c_client *client;
bool use_ext_temp;
};
/*
@@ -127,11 +128,20 @@ static ssize_t adt7411_show_vdd(struct device *dev,
static ssize_t adt7411_show_temp(struct device *dev,
struct device_attribute *attr, char *buf)
{
int nr = to_sensor_dev_attr(attr)->index;
struct adt7411_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int val = adt7411_read_10_bit(client, ADT7411_REG_INT_TEMP_VDD_LSB,
ADT7411_REG_INT_TEMP_MSB, 0);
int val;
struct {
u8 low;
u8 high;
} reg[2] = {
{ ADT7411_REG_INT_TEMP_VDD_LSB, ADT7411_REG_INT_TEMP_MSB },
{ ADT7411_REG_EXT_TEMP_AIN14_LSB,
ADT7411_REG_EXT_TEMP_AIN1_MSB },
};
val = adt7411_read_10_bit(client, reg[nr].low, reg[nr].high, 0);
if (val < 0)
return val;
@@ -218,11 +228,13 @@ static ssize_t adt7411_set_bit(struct device *dev,
return ret < 0 ? ret : count;
}
#define ADT7411_BIT_ATTR(__name, __reg, __bit) \
SENSOR_DEVICE_ATTR_2(__name, S_IRUGO | S_IWUSR, adt7411_show_bit, \
adt7411_set_bit, __bit, __reg)
static DEVICE_ATTR(temp1_input, S_IRUGO, adt7411_show_temp, NULL);
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, adt7411_show_temp, NULL, 0);
static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, adt7411_show_temp, NULL, 1);
static DEVICE_ATTR(in0_input, S_IRUGO, adt7411_show_vdd, NULL);
static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, adt7411_show_input, NULL, 0);
static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, adt7411_show_input, NULL, 1);
@@ -237,7 +249,8 @@ static ADT7411_BIT_ATTR(fast_sampling, ADT7411_REG_CFG3, ADT7411_CFG3_ADC_CLK_22
static ADT7411_BIT_ATTR(adc_ref_vdd, ADT7411_REG_CFG3, ADT7411_CFG3_REF_VDD);
static struct attribute *adt7411_attrs[] = {
&dev_attr_temp1_input.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp2_input.dev_attr.attr,
&dev_attr_in0_input.attr,
&sensor_dev_attr_in1_input.dev_attr.attr,
&sensor_dev_attr_in2_input.dev_attr.attr,
@@ -253,7 +266,27 @@ static struct attribute *adt7411_attrs[] = {
NULL
};
ATTRIBUTE_GROUPS(adt7411);
static umode_t adt7411_attrs_visible(struct kobject *kobj,
struct attribute *attr, int index)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct adt7411_data *data = dev_get_drvdata(dev);
bool visible = true;
if (attr == &sensor_dev_attr_temp2_input.dev_attr.attr)
visible = data->use_ext_temp;
else if (attr == &sensor_dev_attr_in1_input.dev_attr.attr ||
attr == &sensor_dev_attr_in2_input.dev_attr.attr)
visible = !data->use_ext_temp;
return visible ? attr->mode : 0;
}
static const struct attribute_group adt7411_group = {
.attrs = adt7411_attrs,
.is_visible = adt7411_attrs_visible,
};
__ATTRIBUTE_GROUPS(adt7411);
static int adt7411_detect(struct i2c_client *client,
struct i2c_board_info *info)
@@ -309,6 +342,8 @@ static int adt7411_init_device(struct adt7411_data *data)
if (ret < 0)
return ret;
data->use_ext_temp = ret & ADT7411_CFG1_EXT_TDM;
/*
* We must only write zero to bit 1 and only one to bit 3 according to
* the datasheet.
drivers/hwmon/adt7470.c
+102 -6
View File
@@ -32,6 +32,7 @@
#include <linux/log2.h>
#include <linux/kthread.h>
#include <linux/slab.h>
#include <linux/util_macros.h>
/* Addresses to scan */
static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END };
@@ -83,6 +84,7 @@ static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END };
#define ADT7470_REG_PWM_MIN_MAX_ADDR 0x6D
#define ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR 0x6E
#define ADT7470_REG_PWM_TEMP_MIN_MAX_ADDR 0x71
#define ADT7470_REG_CFG_2 0x74
#define ADT7470_REG_ACOUSTICS12 0x75
#define ADT7470_REG_ACOUSTICS34 0x76
#define ADT7470_REG_DEVICE 0x3D
@@ -142,6 +144,11 @@ static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END };
#define FAN_PERIOD_INVALID 65535
#define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID)
/* Config registers 1 and 2 include fields for selecting the PWM frequency */
#define ADT7470_CFG_LF 0x40
#define ADT7470_FREQ_MASK 0x70
#define ADT7470_FREQ_SHIFT 4
struct adt7470_data {
struct i2c_client *client;
struct mutex lock;
@@ -170,7 +177,6 @@ struct adt7470_data {
u8 pwm_auto_temp[ADT7470_PWM_COUNT];
struct task_struct *auto_update;
struct completion auto_update_stop;
unsigned int auto_update_interval;
};
@@ -266,12 +272,14 @@ static int adt7470_update_thread(void *p)
mutex_lock(&data->lock);
adt7470_read_temperatures(client, data);
mutex_unlock(&data->lock);
set_current_state(TASK_INTERRUPTIBLE);
if (kthread_should_stop())
break;
msleep_interruptible(data->auto_update_interval);
schedule_timeout(msecs_to_jiffies(data->auto_update_interval));
}
complete_all(&data->auto_update_stop);
return 0;
}
@@ -538,6 +546,28 @@ static ssize_t show_alarm_mask(struct device *dev,
return sprintf(buf, "%x\n", data->alarms_mask);
}
static ssize_t set_alarm_mask(struct device *dev,
struct device_attribute *devattr,
const char *buf,
size_t count)
{
struct adt7470_data *data = dev_get_drvdata(dev);
long mask;
if (kstrtoul(buf, 0, &mask))
return -EINVAL;
if (mask & ~0xffff)
return -EINVAL;
mutex_lock(&data->lock);
data->alarms_mask = mask;
adt7470_write_word_data(data->client, ADT7470_REG_ALARM1_MASK, mask);
mutex_unlock(&data->lock);
return count;
}
static ssize_t show_fan_max(struct device *dev,
struct device_attribute *devattr,
char *buf)
@@ -688,6 +718,70 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
return count;
}
/* These are the valid PWM frequencies to the nearest Hz */
static const int adt7470_freq_map[] = {
11, 15, 22, 29, 35, 44, 59, 88, 1400, 22500
};
static ssize_t show_pwm_freq(struct device *dev,
struct device_attribute *devattr, char *buf)
{
struct adt7470_data *data = adt7470_update_device(dev);
unsigned char cfg_reg_1;
unsigned char cfg_reg_2;
int index;
mutex_lock(&data->lock);
cfg_reg_1 = i2c_smbus_read_byte_data(data->client, ADT7470_REG_CFG);
cfg_reg_2 = i2c_smbus_read_byte_data(data->client, ADT7470_REG_CFG_2);
mutex_unlock(&data->lock);
index = (cfg_reg_2 & ADT7470_FREQ_MASK) >> ADT7470_FREQ_SHIFT;
if (!(cfg_reg_1 & ADT7470_CFG_LF))
index += 8;
if (index >= ARRAY_SIZE(adt7470_freq_map))
index = ARRAY_SIZE(adt7470_freq_map) - 1;
return scnprintf(buf, PAGE_SIZE, "%d\n", adt7470_freq_map[index]);
}
static ssize_t set_pwm_freq(struct device *dev,
struct device_attribute *devattr,
const char *buf, size_t count)
{
struct adt7470_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
long freq;
int index;
int low_freq = ADT7470_CFG_LF;
unsigned char val;
if (kstrtol(buf, 10, &freq))
return -EINVAL;
/* Round the user value given to the closest available frequency */
index = find_closest(freq, adt7470_freq_map,
ARRAY_SIZE(adt7470_freq_map));
if (index >= 8) {
index -= 8;
low_freq = 0;
}
mutex_lock(&data->lock);
/* Configuration Register 1 */
val = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG);
i2c_smbus_write_byte_data(client, ADT7470_REG_CFG,
(val & ~ADT7470_CFG_LF) | low_freq);
/* Configuration Register 2 */
val = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG_2);
i2c_smbus_write_byte_data(client, ADT7470_REG_CFG_2,
(val & ~ADT7470_FREQ_MASK) | (index << ADT7470_FREQ_SHIFT));
mutex_unlock(&data->lock);
return count;
}
static ssize_t show_pwm_max(struct device *dev,
struct device_attribute *devattr,
char *buf)
@@ -918,7 +1012,8 @@ static ssize_t show_alarm(struct device *dev,
return sprintf(buf, "0\n");
}
static DEVICE_ATTR(alarm_mask, S_IRUGO, show_alarm_mask, NULL);
static DEVICE_ATTR(alarm_mask, S_IWUSR | S_IRUGO, show_alarm_mask,
set_alarm_mask);
static DEVICE_ATTR(num_temp_sensors, S_IWUSR | S_IRUGO, show_num_temp_sensors,
set_num_temp_sensors);
static DEVICE_ATTR(auto_update_interval, S_IWUSR | S_IRUGO,
@@ -1038,6 +1133,8 @@ static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1);
static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2);
static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 3);
static DEVICE_ATTR(pwm1_freq, S_IWUSR | S_IRUGO, show_pwm_freq, set_pwm_freq);
static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO,
show_pwm_min, set_pwm_min, 0);
static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO,
@@ -1154,6 +1251,7 @@ static struct attribute *adt7470_attrs[] = {
&sensor_dev_attr_fan4_alarm.dev_attr.attr,
&sensor_dev_attr_force_pwm_max.dev_attr.attr,
&sensor_dev_attr_pwm1.dev_attr.attr,
&dev_attr_pwm1_freq.attr,
&sensor_dev_attr_pwm2.dev_attr.attr,
&sensor_dev_attr_pwm3.dev_attr.attr,
&sensor_dev_attr_pwm4.dev_attr.attr,
@@ -1256,7 +1354,6 @@ static int adt7470_probe(struct i2c_client *client,
if (IS_ERR(hwmon_dev))
return PTR_ERR(hwmon_dev);
init_completion(&data->auto_update_stop);
data->auto_update = kthread_run(adt7470_update_thread, client, "%s",
dev_name(hwmon_dev));
if (IS_ERR(data->auto_update)) {
@@ -1271,7 +1368,6 @@ static int adt7470_remove(struct i2c_client *client)
struct adt7470_data *data = i2c_get_clientdata(client);
kthread_stop(data->auto_update);
wait_for_completion(&data->auto_update_stop);
return 0;
}
drivers/hwmon/ftsteutates.c
+45
View File
@@ -36,6 +36,10 @@
#define FTS_EVENT_STATUS_REG 0x0006
#define FTS_GLOBAL_CONTROL_REG 0x0007
#define FTS_DEVICE_DETECT_REG_1 0x0C
#define FTS_DEVICE_DETECT_REG_2 0x0D
#define FTS_DEVICE_DETECT_REG_3 0x0E
#define FTS_SENSOR_EVENT_REG 0x0010
#define FTS_FAN_EVENT_REG 0x0014
@@ -54,6 +58,8 @@
#define FTS_NO_TEMP_SENSORS 0x10
#define FTS_NO_VOLT_SENSORS 0x04
static const unsigned short normal_i2c[] = { 0x73, I2C_CLIENT_END };
static struct i2c_device_id fts_id[] = {
{ "ftsteutates", 0 },
{ }
@@ -734,6 +740,42 @@ static const struct attribute_group *fts_attr_groups[] = {
/*****************************************************************************/
/* Module initialization / remove functions */
/*****************************************************************************/
static int fts_detect(struct i2c_client *client,
struct i2c_board_info *info)
{
int val;
/* detection works with revsion greater or equal to 0x2b */
val = i2c_smbus_read_byte_data(client, FTS_DEVICE_REVISION_REG);
if (val < 0x2b)
return -ENODEV;
/* Device Detect Regs must have 0x17 0x34 and 0x54 */
val = i2c_smbus_read_byte_data(client, FTS_DEVICE_DETECT_REG_1);
if (val != 0x17)
return -ENODEV;
val = i2c_smbus_read_byte_data(client, FTS_DEVICE_DETECT_REG_2);
if (val != 0x34)
return -ENODEV;
val = i2c_smbus_read_byte_data(client, FTS_DEVICE_DETECT_REG_3);
if (val != 0x54)
return -ENODEV;
/*
* 0x10 == Baseboard Management Controller, 0x01 == Teutates
* Device ID Reg needs to be 0x11
*/
val = i2c_smbus_read_byte_data(client, FTS_DEVICE_ID_REG);
if (val != 0x11)
return -ENODEV;
strlcpy(info->type, fts_id[0].name, I2C_NAME_SIZE);
info->flags = 0;
return 0;
}
static int fts_remove(struct i2c_client *client)
{
struct fts_data *data = dev_get_drvdata(&client->dev);
@@ -804,12 +846,15 @@ static int fts_probe(struct i2c_client *client, const struct i2c_device_id *id)
/* Module Details */
/*****************************************************************************/
static struct i2c_driver fts_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "ftsteutates",
},
.id_table = fts_id,
.probe = fts_probe,
.remove = fts_remove,
.detect = fts_detect,
.address_list = normal_i2c,
};
module_i2c_driver(fts_driver);
drivers/hwmon/hwmon.c
+593 -41
View File
File diff suppressed because it is too large Load Diff
drivers/hwmon/ibmpowernv.c
+3 -5
View File
@@ -143,13 +143,11 @@ static void __init make_sensor_label(struct device_node *np,
if (cpuid >= 0)
/*
* The digital thermal sensors are associated
* with a core. Let's print out the range of
* cpu ids corresponding to the hardware
* threads of the core.
* with a core.
*/
n += snprintf(sdata->label + n,
sizeof(sdata->label) - n, " %d-%d",
cpuid, cpuid + threads_per_core - 1);
sizeof(sdata->label) - n, " %d",
cpuid);
else
n += snprintf(sdata->label + n,
sizeof(sdata->label) - n, " phy%d", id);
drivers/hwmon/iio_hwmon.c
+4 -1
View File
@@ -73,8 +73,11 @@ static int iio_hwmon_probe(struct platform_device *pdev)
name = dev->of_node->name;
channels = iio_channel_get_all(dev);
if (IS_ERR(channels))
if (IS_ERR(channels)) {
if (PTR_ERR(channels) == -ENODEV)
return -EPROBE_DEFER;
return PTR_ERR(channels);
}
st = devm_kzalloc(dev, sizeof(*st), GFP_KERNEL);
if (st == NULL) {
drivers/hwmon/it87.c
+4 -4
View File
@@ -2011,10 +2011,10 @@ static struct attribute *it87_attributes_in[] = {
&sensor_dev_attr_in7_beep.dev_attr.attr, /* 39 */
&sensor_dev_attr_in8_input.dev_attr.attr, /* 40 */
&sensor_dev_attr_in9_input.dev_attr.attr, /* 41 */
&sensor_dev_attr_in10_input.dev_attr.attr, /* 41 */
&sensor_dev_attr_in11_input.dev_attr.attr, /* 41 */
&sensor_dev_attr_in12_input.dev_attr.attr, /* 41 */
&sensor_dev_attr_in9_input.dev_attr.attr,
&sensor_dev_attr_in10_input.dev_attr.attr,
&sensor_dev_attr_in11_input.dev_attr.attr,
&sensor_dev_attr_in12_input.dev_attr.attr,
NULL
};
drivers/hwmon/jc42.c
+148 -143
View File
@@ -28,7 +28,6 @@
#include <linux/jiffies.h>
#include <linux/i2c.h>
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/mutex.h>
#include <linux/of.h>
@@ -254,170 +253,148 @@ abort:
return ret;
}
/* sysfs functions */
static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
char *buf)
static int jc42_read(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, long *val)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct jc42_data *data = jc42_update_device(dev);
if (IS_ERR(data))
return PTR_ERR(data);
return sprintf(buf, "%d\n",
jc42_temp_from_reg(data->temp[attr->index]));
}
static ssize_t show_temp_hyst(struct device *dev,
struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct jc42_data *data = jc42_update_device(dev);
int temp, hyst;
if (IS_ERR(data))
return PTR_ERR(data);
temp = jc42_temp_from_reg(data->temp[attr->index]);
hyst = jc42_hysteresis[(data->config & JC42_CFG_HYST_MASK)
>> JC42_CFG_HYST_SHIFT];
return sprintf(buf, "%d\n", temp - hyst);
switch (attr) {
case hwmon_temp_input:
*val = jc42_temp_from_reg(data->temp[t_input]);
return 0;
case hwmon_temp_min:
*val = jc42_temp_from_reg(data->temp[t_min]);
return 0;
case hwmon_temp_max:
*val = jc42_temp_from_reg(data->temp[t_max]);
return 0;
case hwmon_temp_crit:
*val = jc42_temp_from_reg(data->temp[t_crit]);
return 0;
case hwmon_temp_max_hyst:
temp = jc42_temp_from_reg(data->temp[t_max]);
hyst = jc42_hysteresis[(data->config & JC42_CFG_HYST_MASK)
>> JC42_CFG_HYST_SHIFT];
*val = temp - hyst;
return 0;
case hwmon_temp_crit_hyst:
temp = jc42_temp_from_reg(data->temp[t_crit]);
hyst = jc42_hysteresis[(data->config & JC42_CFG_HYST_MASK)
>> JC42_CFG_HYST_SHIFT];
*val = temp - hyst;
return 0;
case hwmon_temp_min_alarm:
*val = (data->temp[t_input] >> JC42_ALARM_MIN_BIT) & 1;
return 0;
case hwmon_temp_max_alarm:
*val = (data->temp[t_input] >> JC42_ALARM_MAX_BIT) & 1;
return 0;
case hwmon_temp_crit_alarm:
*val = (data->temp[t_input] >> JC42_ALARM_CRIT_BIT) & 1;
return 0;
default:
return -EOPNOTSUPP;
}
}
static ssize_t set_temp(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct jc42_data *data = dev_get_drvdata(dev);
int err, ret = count;
int nr = attr->index;
long val;
if (kstrtol(buf, 10, &val) < 0)
return -EINVAL;
mutex_lock(&data->update_lock);
data->temp[nr] = jc42_temp_to_reg(val, data->extended);
err = i2c_smbus_write_word_swapped(data->client, temp_regs[nr],
data->temp[nr]);
if (err < 0)
ret = err;
mutex_unlock(&data->update_lock);
return ret;
}
/*
* JC42.4 compliant chips only support four hysteresis values.
* Pick best choice and go from there.
*/
static ssize_t set_temp_crit_hyst(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
static int jc42_write(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, long val)
{
struct jc42_data *data = dev_get_drvdata(dev);
long val;
struct i2c_client *client = data->client;
int diff, hyst;
int err;
int ret = count;
int ret;
if (kstrtol(buf, 10, &val) < 0)
return -EINVAL;
mutex_lock(&data->update_lock);
val = clamp_val(val, (data->extended ? JC42_TEMP_MIN_EXTENDED :
JC42_TEMP_MIN) - 6000, JC42_TEMP_MAX);
diff = jc42_temp_from_reg(data->temp[t_crit]) - val;
hyst = 0;
if (diff > 0) {
if (diff < 2250)
hyst = 1; /* 1.5 degrees C */
else if (diff < 4500)
hyst = 2; /* 3.0 degrees C */
else
hyst = 3; /* 6.0 degrees C */
switch (attr) {
case hwmon_temp_min:
data->temp[t_min] = jc42_temp_to_reg(val, data->extended);
ret = i2c_smbus_write_word_swapped(client, temp_regs[t_min],
data->temp[t_min]);
break;
case hwmon_temp_max:
data->temp[t_max] = jc42_temp_to_reg(val, data->extended);
ret = i2c_smbus_write_word_swapped(client, temp_regs[t_max],
data->temp[t_max]);
break;
case hwmon_temp_crit:
data->temp[t_crit] = jc42_temp_to_reg(val, data->extended);
ret = i2c_smbus_write_word_swapped(client, temp_regs[t_crit],
data->temp[t_crit]);
break;
case hwmon_temp_crit_hyst:
/*
* JC42.4 compliant chips only support four hysteresis values.
* Pick best choice and go from there.
*/
val = clamp_val(val, (data->extended ? JC42_TEMP_MIN_EXTENDED
: JC42_TEMP_MIN) - 6000,
JC42_TEMP_MAX);
diff = jc42_temp_from_reg(data->temp[t_crit]) - val;
hyst = 0;
if (diff > 0) {
if (diff < 2250)
hyst = 1; /* 1.5 degrees C */
else if (diff < 4500)
hyst = 2; /* 3.0 degrees C */
else
hyst = 3; /* 6.0 degrees C */
}
data->config = (data->config & ~JC42_CFG_HYST_MASK) |
(hyst << JC42_CFG_HYST_SHIFT);
ret = i2c_smbus_write_word_swapped(data->client,
JC42_REG_CONFIG,
data->config);
break;
default:
ret = -EOPNOTSUPP;
break;
}
mutex_lock(&data->update_lock);
data->config = (data->config & ~JC42_CFG_HYST_MASK)
| (hyst << JC42_CFG_HYST_SHIFT);
err = i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG,
data->config);
if (err < 0)
ret = err;
mutex_unlock(&data->update_lock);
return ret;
}
static ssize_t show_alarm(struct device *dev,
struct device_attribute *attr, char *buf)
static umode_t jc42_is_visible(const void *_data, enum hwmon_sensor_types type,
u32 attr, int channel)
{
u16 bit = to_sensor_dev_attr(attr)->index;
struct jc42_data *data = jc42_update_device(dev);
u16 val;
if (IS_ERR(data))
return PTR_ERR(data);
val = data->temp[t_input];
if (bit != JC42_ALARM_CRIT_BIT && (data->config & JC42_CFG_CRIT_ONLY))
val = 0;
return sprintf(buf, "%u\n", (val >> bit) & 1);
}
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, t_input);
static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, show_temp, set_temp, t_crit);
static SENSOR_DEVICE_ATTR(temp1_min, S_IRUGO, show_temp, set_temp, t_min);
static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, show_temp, set_temp, t_max);
static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IRUGO, show_temp_hyst,
set_temp_crit_hyst, t_crit);
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO, show_temp_hyst, NULL, t_max);
static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL,
JC42_ALARM_CRIT_BIT);
static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL,
JC42_ALARM_MIN_BIT);
static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL,
JC42_ALARM_MAX_BIT);
static struct attribute *jc42_attributes[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_crit.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
&sensor_dev_attr_temp1_crit_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
&sensor_dev_attr_temp1_max_alarm.dev_attr.attr,
NULL
};
static umode_t jc42_attribute_mode(struct kobject *kobj,
struct attribute *attr, int index)
{
struct device *dev = container_of(kobj, struct device, kobj);
struct jc42_data *data = dev_get_drvdata(dev);
const struct jc42_data *data = _data;
unsigned int config = data->config;
bool readonly;
umode_t mode = S_IRUGO;
if (attr == &sensor_dev_attr_temp1_crit.dev_attr.attr)
readonly = config & JC42_CFG_TCRIT_LOCK;
else if (attr == &sensor_dev_attr_temp1_min.dev_attr.attr ||
attr == &sensor_dev_attr_temp1_max.dev_attr.attr)
readonly = config & JC42_CFG_EVENT_LOCK;
else if (attr == &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr)
readonly = config & (JC42_CFG_EVENT_LOCK | JC42_CFG_TCRIT_LOCK);
else
readonly = true;
return S_IRUGO | (readonly ? 0 : S_IWUSR);
switch (attr) {
case hwmon_temp_min:
case hwmon_temp_max:
if (!(config & JC42_CFG_EVENT_LOCK))
mode |= S_IWUSR;
break;
case hwmon_temp_crit:
if (!(config & JC42_CFG_TCRIT_LOCK))
mode |= S_IWUSR;
break;
case hwmon_temp_crit_hyst:
if (!(config & (JC42_CFG_EVENT_LOCK | JC42_CFG_TCRIT_LOCK)))
mode |= S_IWUSR;
break;
case hwmon_temp_input:
case hwmon_temp_max_hyst:
case hwmon_temp_min_alarm:
case hwmon_temp_max_alarm:
case hwmon_temp_crit_alarm:
break;
default:
mode = 0;
break;
}
return mode;
}
static const struct attribute_group jc42_group = {
.attrs = jc42_attributes,
.is_visible = jc42_attribute_mode,
};
__ATTRIBUTE_GROUPS(jc42);
/* Return 0 if detection is successful, -ENODEV otherwise */
static int jc42_detect(struct i2c_client *client, struct i2c_board_info *info)
{
@@ -450,6 +427,34 @@ static int jc42_detect(struct i2c_client *client, struct i2c_board_info *info)
return -ENODEV;
}
static const u32 jc42_temp_config[] = {
HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | HWMON_T_CRIT |
HWMON_T_MAX_HYST | HWMON_T_CRIT_HYST |
HWMON_T_MIN_ALARM | HWMON_T_MAX_ALARM | HWMON_T_CRIT_ALARM,
0
};
static const struct hwmon_channel_info jc42_temp = {
.type = hwmon_temp,
.config = jc42_temp_config,
};
static const struct hwmon_channel_info *jc42_info[] = {
&jc42_temp,
NULL
};
static const struct hwmon_ops jc42_hwmon_ops = {
.is_visible = jc42_is_visible,
.read = jc42_read,
.write = jc42_write,
};
static const struct hwmon_chip_info jc42_chip_info = {
.ops = &jc42_hwmon_ops,
.info = jc42_info,
};
static int jc42_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
@@ -482,9 +487,9 @@ static int jc42_probe(struct i2c_client *client, const struct i2c_device_id *id)
}
data->config = config;
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
data,
jc42_groups);
hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,
data, &jc42_chip_info,
NULL);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
drivers/hwmon/lm75.c
+118 -71
View File
@@ -28,7 +28,6 @@
#include <linux/err.h>
#include <linux/of.h>
#include <linux/regmap.h>
#include <linux/thermal.h>
#include "lm75.h"
@@ -88,56 +87,75 @@ static inline long lm75_reg_to_mc(s16 temp, u8 resolution)
return ((temp >> (16 - resolution)) * 1000) >> (resolution - 8);
}
/* sysfs attributes for hwmon */
static int lm75_read_temp(void *dev, int *temp)
static int lm75_read(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, long *val)
{
struct lm75_data *data = dev_get_drvdata(dev);
unsigned int _temp;
int err;
unsigned int regval;
int err, reg;
err = regmap_read(data->regmap, LM75_REG_TEMP, &_temp);
if (err < 0)
return err;
*temp = lm75_reg_to_mc(_temp, data->resolution);
switch (type) {
case hwmon_chip:
switch (attr) {
case hwmon_chip_update_interval:
*val = data->sample_time;
break;;
default:
return -EINVAL;
}
break;
case hwmon_temp:
switch (attr) {
case hwmon_temp_input:
reg = LM75_REG_TEMP;
break;
case hwmon_temp_max:
reg = LM75_REG_MAX;
break;
case hwmon_temp_max_hyst:
reg = LM75_REG_HYST;
break;
default:
return -EINVAL;
}
err = regmap_read(data->regmap, reg, &regval);
if (err < 0)
return err;
*val = lm75_reg_to_mc(regval, data->resolution);
break;
default:
return -EINVAL;
}
return 0;
}
static ssize_t show_temp(struct device *dev, struct device_attribute *da,
char *buf)
static int lm75_write(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, long temp)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct lm75_data *data = dev_get_drvdata(dev);
unsigned int temp = 0;
int err;
err = regmap_read(data->regmap, attr->index, &temp);
if (err < 0)
return err;
return sprintf(buf, "%ld\n", lm75_reg_to_mc(temp, data->resolution));
}
static ssize_t set_temp(struct device *dev, struct device_attribute *da,
const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct lm75_data *data = dev_get_drvdata(dev);
long temp;
int error;
u8 resolution;
int reg;
error = kstrtol(buf, 10, &temp);
if (error)
return error;
if (type != hwmon_temp)
return -EINVAL;
switch (attr) {
case hwmon_temp_max:
reg = LM75_REG_MAX;
break;
case hwmon_temp_max_hyst:
reg = LM75_REG_HYST;
break;
default:
return -EINVAL;
}
/*
* Resolution of limit registers is assumed to be the same as the
* temperature input register resolution unless given explicitly.
*/
if (attr->index && data->resolution_limits)
if (data->resolution_limits)
resolution = data->resolution_limits;
else
resolution = data->resolution;
@@ -145,46 +163,78 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
temp = clamp_val(temp, LM75_TEMP_MIN, LM75_TEMP_MAX);
temp = DIV_ROUND_CLOSEST(temp << (resolution - 8),
1000) << (16 - resolution);
error = regmap_write(data->regmap, attr->index, temp);
if (error < 0)
return error;
return count;
return regmap_write(data->regmap, reg, temp);
}
static ssize_t show_update_interval(struct device *dev,
struct device_attribute *da, char *buf)
static umode_t lm75_is_visible(const void *data, enum hwmon_sensor_types type,
u32 attr, int channel)
{
struct lm75_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", data->sample_time);
switch (type) {
case hwmon_chip:
switch (attr) {
case hwmon_chip_update_interval:
return S_IRUGO;
}
break;
case hwmon_temp:
switch (attr) {
case hwmon_temp_input:
return S_IRUGO;
case hwmon_temp_max:
case hwmon_temp_max_hyst:
return S_IRUGO | S_IWUSR;
}
break;
default:
break;
}
return 0;
}
static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO,
show_temp, set_temp, LM75_REG_MAX);
static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IWUSR | S_IRUGO,
show_temp, set_temp, LM75_REG_HYST);
static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, LM75_REG_TEMP);
static DEVICE_ATTR(update_interval, S_IRUGO, show_update_interval, NULL);
static struct attribute *lm75_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
&dev_attr_update_interval.attr,
NULL
};
ATTRIBUTE_GROUPS(lm75);
static const struct thermal_zone_of_device_ops lm75_of_thermal_ops = {
.get_temp = lm75_read_temp,
};
/*-----------------------------------------------------------------------*/
/* device probe and removal */
/* chip configuration */
static const u32 lm75_chip_config[] = {
HWMON_C_REGISTER_TZ | HWMON_C_UPDATE_INTERVAL,
0
};
static const struct hwmon_channel_info lm75_chip = {
.type = hwmon_chip,
.config = lm75_chip_config,
};
static const u32 lm75_temp_config[] = {
HWMON_T_INPUT | HWMON_T_MAX | HWMON_T_MAX_HYST,
0
};
static const struct hwmon_channel_info lm75_temp = {
.type = hwmon_temp,
.config = lm75_temp_config,
};
static const struct hwmon_channel_info *lm75_info[] = {
&lm75_chip,
&lm75_temp,
NULL
};
static const struct hwmon_ops lm75_hwmon_ops = {
.is_visible = lm75_is_visible,
.read = lm75_read,
.write = lm75_write,
};
static const struct hwmon_chip_info lm75_chip_info = {
.ops = &lm75_hwmon_ops,
.info = lm75_info,
};
static bool lm75_is_writeable_reg(struct device *dev, unsigned int reg)
{
return reg != LM75_REG_TEMP;
@@ -337,15 +387,12 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
dev_dbg(dev, "Config %02x\n", new);
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
data, lm75_groups);
hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name,
data, &lm75_chip_info,
NULL);
if (IS_ERR(hwmon_dev))
return PTR_ERR(hwmon_dev);
devm_thermal_zone_of_sensor_register(hwmon_dev, 0,
hwmon_dev,
&lm75_of_thermal_ops);
dev_info(dev, "%s: sensor '%s'\n", dev_name(hwmon_dev), client->name);
return 0;
drivers/hwmon/lm90.c
+522 -463
View File
File diff suppressed because it is too large Load Diff
drivers/hwmon/lm95241.c
+293 -208
View File
File diff suppressed because it is too large Load Diff
drivers/hwmon/lm95245.c
+375 -255
View File
File diff suppressed because it is too large Load Diff
drivers/hwmon/ltc4151.c
+20 -2
View File
@@ -30,6 +30,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/slab.h>
@@ -52,6 +53,7 @@ struct ltc4151_data {
struct mutex update_lock;
bool valid;
unsigned long last_updated; /* in jiffies */
unsigned int shunt; /* in micro ohms */
/* Registers */
u8 regs[6];
@@ -111,9 +113,9 @@ static int ltc4151_get_value(struct ltc4151_data *data, u8 reg)
case LTC4151_SENSE_H:
/*
* 20uV resolution. Convert to current as measured with
* an 1 mOhm sense resistor, in mA.
* a given sense resistor, in mA.
*/
val = val * 20;
val = val * 20 * 1000 / data->shunt;
break;
case LTC4151_VIN_H:
/* 25 mV per increment */
@@ -176,6 +178,7 @@ static int ltc4151_probe(struct i2c_client *client,
struct device *dev = &client->dev;
struct ltc4151_data *data;
struct device *hwmon_dev;
u32 shunt;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
return -ENODEV;
@@ -184,6 +187,15 @@ static int ltc4151_probe(struct i2c_client *client,
if (!data)
return -ENOMEM;
if (of_property_read_u32(client->dev.of_node,
"shunt-resistor-micro-ohms", &shunt))
shunt = 1000; /* 1 mOhm if not set via DT */
if (shunt == 0)
return -EINVAL;
data->shunt = shunt;
data->client = client;
mutex_init(&data->update_lock);
@@ -199,10 +211,16 @@ static const struct i2c_device_id ltc4151_id[] = {
};
MODULE_DEVICE_TABLE(i2c, ltc4151_id);
static const struct of_device_id ltc4151_match[] = {
{ .compatible = "lltc,ltc4151" },
{},
};
/* This is the driver that will be inserted */
static struct i2c_driver ltc4151_driver = {
.driver = {
.name = "ltc4151",
.of_match_table = of_match_ptr(ltc4151_match),
},
.probe = ltc4151_probe,
.id_table = ltc4151_id,
drivers/hwmon/ltc4245.c
+190 -202
View File
@@ -16,6 +16,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/bitops.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/i2c.h>
@@ -53,8 +54,6 @@ enum ltc4245_cmd {
struct ltc4245_data {
struct i2c_client *client;
const struct attribute_group *groups[3];
struct mutex update_lock;
bool valid;
unsigned long last_updated; /* in jiffies */
@@ -162,7 +161,7 @@ static struct ltc4245_data *ltc4245_update_device(struct device *dev)
ltc4245_update_gpios(dev);
data->last_updated = jiffies;
data->valid = 1;
data->valid = true;
}
mutex_unlock(&data->update_lock);
@@ -256,214 +255,205 @@ static unsigned int ltc4245_get_current(struct device *dev, u8 reg)
return curr;
}
static ssize_t ltc4245_show_voltage(struct device *dev,
struct device_attribute *da,
char *buf)
/* Map from voltage channel index to voltage register */
static const s8 ltc4245_in_regs[] = {
LTC4245_12VIN, LTC4245_5VIN, LTC4245_3VIN, LTC4245_VEEIN,
LTC4245_12VOUT, LTC4245_5VOUT, LTC4245_3VOUT, LTC4245_VEEOUT,
};
/* Map from current channel index to current register */
static const s8 ltc4245_curr_regs[] = {
LTC4245_12VSENSE, LTC4245_5VSENSE, LTC4245_3VSENSE, LTC4245_VEESENSE,
};
static int ltc4245_read_curr(struct device *dev, u32 attr, int channel,
long *val)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
const int voltage = ltc4245_get_voltage(dev, attr->index);
return snprintf(buf, PAGE_SIZE, "%d\n", voltage);
}
static ssize_t ltc4245_show_current(struct device *dev,
struct device_attribute *da,
char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
const unsigned int curr = ltc4245_get_current(dev, attr->index);
return snprintf(buf, PAGE_SIZE, "%u\n", curr);
}
static ssize_t ltc4245_show_power(struct device *dev,
struct device_attribute *da,
char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
const unsigned int curr = ltc4245_get_current(dev, attr->index);
const int output_voltage = ltc4245_get_voltage(dev, attr->index+1);
/* current in mA * voltage in mV == power in uW */
const unsigned int power = abs(output_voltage * curr);
return snprintf(buf, PAGE_SIZE, "%u\n", power);
}
static ssize_t ltc4245_show_alarm(struct device *dev,
struct device_attribute *da,
char *buf)
{
struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(da);
struct ltc4245_data *data = ltc4245_update_device(dev);
const u8 reg = data->cregs[attr->index];
const u32 mask = attr->nr;
return snprintf(buf, PAGE_SIZE, "%u\n", (reg & mask) ? 1 : 0);
switch (attr) {
case hwmon_curr_input:
*val = ltc4245_get_current(dev, ltc4245_curr_regs[channel]);
return 0;
case hwmon_curr_max_alarm:
*val = !!(data->cregs[LTC4245_FAULT1] & BIT(channel + 4));
return 0;
default:
return -EOPNOTSUPP;
}
}
static ssize_t ltc4245_show_gpio(struct device *dev,
struct device_attribute *da,
char *buf)
static int ltc4245_read_in(struct device *dev, u32 attr, int channel, long *val)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
struct ltc4245_data *data = ltc4245_update_device(dev);
int val = data->gpios[attr->index];
/* handle stale GPIO's */
if (val < 0)
return val;
switch (attr) {
case hwmon_in_input:
if (channel < 8) {
*val = ltc4245_get_voltage(dev,
ltc4245_in_regs[channel]);
} else {
int regval = data->gpios[channel - 8];
/* Convert to millivolts and print */
return snprintf(buf, PAGE_SIZE, "%u\n", val * 10);
if (regval < 0)
return regval;
*val = regval * 10;
}
return 0;
case hwmon_in_min_alarm:
if (channel < 4)
*val = !!(data->cregs[LTC4245_FAULT1] & BIT(channel));
else
*val = !!(data->cregs[LTC4245_FAULT2] &
BIT(channel - 4));
return 0;
default:
return -EOPNOTSUPP;
}
}
/* Construct a sensor_device_attribute structure for each register */
/* Input voltages */
static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, ltc4245_show_voltage, NULL,
LTC4245_12VIN);
static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, ltc4245_show_voltage, NULL,
LTC4245_5VIN);
static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, ltc4245_show_voltage, NULL,
LTC4245_3VIN);
static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, ltc4245_show_voltage, NULL,
LTC4245_VEEIN);
/* Input undervoltage alarms */
static SENSOR_DEVICE_ATTR_2(in1_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL,
1 << 0, LTC4245_FAULT1);
static SENSOR_DEVICE_ATTR_2(in2_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL,
1 << 1, LTC4245_FAULT1);
static SENSOR_DEVICE_ATTR_2(in3_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL,
1 << 2, LTC4245_FAULT1);
static SENSOR_DEVICE_ATTR_2(in4_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL,
1 << 3, LTC4245_FAULT1);
/* Currents (via sense resistor) */
static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, ltc4245_show_current, NULL,
LTC4245_12VSENSE);
static SENSOR_DEVICE_ATTR(curr2_input, S_IRUGO, ltc4245_show_current, NULL,
LTC4245_5VSENSE);
static SENSOR_DEVICE_ATTR(curr3_input, S_IRUGO, ltc4245_show_current, NULL,
LTC4245_3VSENSE);
static SENSOR_DEVICE_ATTR(curr4_input, S_IRUGO, ltc4245_show_current, NULL,
LTC4245_VEESENSE);
/* Overcurrent alarms */
static SENSOR_DEVICE_ATTR_2(curr1_max_alarm, S_IRUGO, ltc4245_show_alarm, NULL,
1 << 4, LTC4245_FAULT1);
static SENSOR_DEVICE_ATTR_2(curr2_max_alarm, S_IRUGO, ltc4245_show_alarm, NULL,
1 << 5, LTC4245_FAULT1);
static SENSOR_DEVICE_ATTR_2(curr3_max_alarm, S_IRUGO, ltc4245_show_alarm, NULL,
1 << 6, LTC4245_FAULT1);
static SENSOR_DEVICE_ATTR_2(curr4_max_alarm, S_IRUGO, ltc4245_show_alarm, NULL,
1 << 7, LTC4245_FAULT1);
/* Output voltages */
static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, ltc4245_show_voltage, NULL,
LTC4245_12VOUT);
static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, ltc4245_show_voltage, NULL,
LTC4245_5VOUT);
static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, ltc4245_show_voltage, NULL,
LTC4245_3VOUT);
static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, ltc4245_show_voltage, NULL,
LTC4245_VEEOUT);
/* Power Bad alarms */
static SENSOR_DEVICE_ATTR_2(in5_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL,
1 << 0, LTC4245_FAULT2);
static SENSOR_DEVICE_ATTR_2(in6_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL,
1 << 1, LTC4245_FAULT2);
static SENSOR_DEVICE_ATTR_2(in7_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL,
1 << 2, LTC4245_FAULT2);
static SENSOR_DEVICE_ATTR_2(in8_min_alarm, S_IRUGO, ltc4245_show_alarm, NULL,
1 << 3, LTC4245_FAULT2);
/* GPIO voltages */
static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, ltc4245_show_gpio, NULL, 0);
static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, ltc4245_show_gpio, NULL, 1);
static SENSOR_DEVICE_ATTR(in11_input, S_IRUGO, ltc4245_show_gpio, NULL, 2);
/* Power Consumption (virtual) */
static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO, ltc4245_show_power, NULL,
LTC4245_12VSENSE);
static SENSOR_DEVICE_ATTR(power2_input, S_IRUGO, ltc4245_show_power, NULL,
LTC4245_5VSENSE);
static SENSOR_DEVICE_ATTR(power3_input, S_IRUGO, ltc4245_show_power, NULL,
LTC4245_3VSENSE);
static SENSOR_DEVICE_ATTR(power4_input, S_IRUGO, ltc4245_show_power, NULL,
LTC4245_VEESENSE);
/*
* Finally, construct an array of pointers to members of the above objects,
* as required for sysfs_create_group()
*/
static struct attribute *ltc4245_std_attributes[] = {
&sensor_dev_attr_in1_input.dev_attr.attr,
&sensor_dev_attr_in2_input.dev_attr.attr,
&sensor_dev_attr_in3_input.dev_attr.attr,
&sensor_dev_attr_in4_input.dev_attr.attr,
&sensor_dev_attr_in1_min_alarm.dev_attr.attr,
&sensor_dev_attr_in2_min_alarm.dev_attr.attr,
&sensor_dev_attr_in3_min_alarm.dev_attr.attr,
&sensor_dev_attr_in4_min_alarm.dev_attr.attr,
&sensor_dev_attr_curr1_input.dev_attr.attr,
&sensor_dev_attr_curr2_input.dev_attr.attr,
&sensor_dev_attr_curr3_input.dev_attr.attr,
&sensor_dev_attr_curr4_input.dev_attr.attr,
&sensor_dev_attr_curr1_max_alarm.dev_attr.attr,
&sensor_dev_attr_curr2_max_alarm.dev_attr.attr,
&sensor_dev_attr_curr3_max_alarm.dev_attr.attr,
&sensor_dev_attr_curr4_max_alarm.dev_attr.attr,
&sensor_dev_attr_in5_input.dev_attr.attr,
&sensor_dev_attr_in6_input.dev_attr.attr,
&sensor_dev_attr_in7_input.dev_attr.attr,
&sensor_dev_attr_in8_input.dev_attr.attr,
&sensor_dev_attr_in5_min_alarm.dev_attr.attr,
&sensor_dev_attr_in6_min_alarm.dev_attr.attr,
&sensor_dev_attr_in7_min_alarm.dev_attr.attr,
&sensor_dev_attr_in8_min_alarm.dev_attr.attr,
&sensor_dev_attr_in9_input.dev_attr.attr,
&sensor_dev_attr_power1_input.dev_attr.attr,
&sensor_dev_attr_power2_input.dev_attr.attr,
&sensor_dev_attr_power3_input.dev_attr.attr,
&sensor_dev_attr_power4_input.dev_attr.attr,
NULL,
};
static struct attribute *ltc4245_gpio_attributes[] = {
&sensor_dev_attr_in10_input.dev_attr.attr,
&sensor_dev_attr_in11_input.dev_attr.attr,
NULL,
};
static const struct attribute_group ltc4245_std_group = {
.attrs = ltc4245_std_attributes,
};
static const struct attribute_group ltc4245_gpio_group = {
.attrs = ltc4245_gpio_attributes,
};
static void ltc4245_sysfs_add_groups(struct ltc4245_data *data)
static int ltc4245_read_power(struct device *dev, u32 attr, int channel,
long *val)
{
/* standard sysfs attributes */
data->groups[0] = &ltc4245_std_group;
unsigned long curr;
long voltage;
/* if we're using the extra gpio support, register it's attributes */
if (data->use_extra_gpios)
data->groups[1] = &ltc4245_gpio_group;
switch (attr) {
case hwmon_power_input:
(void)ltc4245_update_device(dev);
curr = ltc4245_get_current(dev, ltc4245_curr_regs[channel]);
voltage = ltc4245_get_voltage(dev, ltc4245_in_regs[channel]);
*val = abs(curr * voltage);
return 0;
default:
return -EOPNOTSUPP;
}
}
static int ltc4245_read(struct device *dev, enum hwmon_sensor_types type,
u32 attr, int channel, long *val)
{
switch (type) {
case hwmon_curr:
return ltc4245_read_curr(dev, attr, channel, val);
case hwmon_power:
return ltc4245_read_power(dev, attr, channel, val);
case hwmon_in:
return ltc4245_read_in(dev, attr, channel - 1, val);
default:
return -EOPNOTSUPP;
}
}
static umode_t ltc4245_is_visible(const void *_data,
enum hwmon_sensor_types type,
u32 attr, int channel)
{
const struct ltc4245_data *data = _data;
switch (type) {
case hwmon_in:
if (channel == 0)
return 0;
switch (attr) {
case hwmon_in_input:
if (channel > 9 && !data->use_extra_gpios)
return 0;
return S_IRUGO;
case hwmon_in_min_alarm:
if (channel > 8)
return 0;
return S_IRUGO;
default:
return 0;
}
case hwmon_curr:
switch (attr) {
case hwmon_curr_input:
case hwmon_curr_max_alarm:
return S_IRUGO;
default:
return 0;
}
case hwmon_power:
switch (attr) {
case hwmon_power_input:
return S_IRUGO;
default:
return 0;
}
default:
return 0;
}
}
static const u32 ltc4245_in_config[] = {
HWMON_I_INPUT, /* dummy, skipped in is_visible */
HWMON_I_INPUT | HWMON_I_MIN_ALARM,
HWMON_I_INPUT | HWMON_I_MIN_ALARM,
HWMON_I_INPUT | HWMON_I_MIN_ALARM,
HWMON_I_INPUT | HWMON_I_MIN_ALARM,
HWMON_I_INPUT | HWMON_I_MIN_ALARM,
HWMON_I_INPUT | HWMON_I_MIN_ALARM,
HWMON_I_INPUT | HWMON_I_MIN_ALARM,
HWMON_I_INPUT | HWMON_I_MIN_ALARM,
HWMON_I_INPUT,
HWMON_I_INPUT,
HWMON_I_INPUT,
0
};
static const struct hwmon_channel_info ltc4245_in = {
.type = hwmon_in,
.config = ltc4245_in_config,
};
static const u32 ltc4245_curr_config[] = {
HWMON_C_INPUT | HWMON_C_MAX_ALARM,
HWMON_C_INPUT | HWMON_C_MAX_ALARM,
HWMON_C_INPUT | HWMON_C_MAX_ALARM,
HWMON_C_INPUT | HWMON_C_MAX_ALARM,
0
};
static const struct hwmon_channel_info ltc4245_curr = {
.type = hwmon_curr,
.config = ltc4245_curr_config,
};
static const u32 ltc4245_power_config[] = {
HWMON_P_INPUT,
HWMON_P_INPUT,
HWMON_P_INPUT,
HWMON_P_INPUT,
0
};
static const struct hwmon_channel_info ltc4245_power = {
.type = hwmon_power,
.config = ltc4245_power_config,
};
static const struct hwmon_channel_info *ltc4245_info[] = {
&ltc4245_in,
&ltc4245_curr,
&ltc4245_power,
NULL
};
static const struct hwmon_ops ltc4245_hwmon_ops = {
.is_visible = ltc4245_is_visible,
.read = ltc4245_read,
};
static const struct hwmon_chip_info ltc4245_chip_info = {
.ops = &ltc4245_hwmon_ops,
.info = ltc4245_info,
};
static bool ltc4245_use_extra_gpios(struct i2c_client *client)
{
struct ltc4245_platform_data *pdata = dev_get_platdata(&client->dev);
@@ -502,12 +492,10 @@ static int ltc4245_probe(struct i2c_client *client,
i2c_smbus_write_byte_data(client, LTC4245_FAULT1, 0x00);
i2c_smbus_write_byte_data(client, LTC4245_FAULT2, 0x00);
/* Add sysfs hooks */
ltc4245_sysfs_add_groups(data);
hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
client->name, data,
data->groups);
hwmon_dev = devm_hwmon_device_register_with_info(&client->dev,
client->name, data,
&ltc4245_chip_info,
NULL);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
drivers/hwmon/max31790.c
+233 -306
View File
File diff suppressed because it is too large Load Diff
drivers/hwmon/max6650.c
+103 -52
View File
@@ -39,6 +39,7 @@
#include <linux/hwmon.h>
#include <linux/hwmon-sysfs.h>
#include <linux/err.h>
#include <linux/of_device.h>
/*
* Insmod parameters
@@ -48,7 +49,7 @@
static int fan_voltage;
/* prescaler: Possible values are 1, 2, 4, 8, 16 or 0 for don't change */
static int prescaler;
/* clock: The clock frequency of the chip the driver should assume */
/* clock: The clock frequency of the chip (max6651 can be clocked externally) */
static int clock = 254000;
module_param(fan_voltage, int, S_IRUGO);
@@ -133,6 +134,19 @@ static const u8 tach_reg[] = {
MAX6650_REG_TACH3,
};
static const struct of_device_id max6650_dt_match[] = {
{
.compatible = "maxim,max6650",
.data = (void *)1
},
{
.compatible = "maxim,max6651",
.data = (void *)4
},
{ },
};
MODULE_DEVICE_TABLE(of, max6650_dt_match);
static struct max6650_data *max6650_update_device(struct device *dev)
{
struct max6650_data *data = dev_get_drvdata(dev);
@@ -171,6 +185,30 @@ static struct max6650_data *max6650_update_device(struct device *dev)
return data;
}
/*
* Change the operating mode of the chip (if needed).
* mode is one of the MAX6650_CFG_MODE_* values.
*/
static int max6650_set_operating_mode(struct max6650_data *data, u8 mode)
{
int result;
u8 config = data->config;
if (mode == (config & MAX6650_CFG_MODE_MASK))
return 0;
config = (config & ~MAX6650_CFG_MODE_MASK) | mode;
result = i2c_smbus_write_byte_data(data->client, MAX6650_REG_CONFIG,
config);
if (result < 0)
return result;
data->config = config;
return 0;
}
static ssize_t get_fan(struct device *dev, struct device_attribute *devattr,
char *buf)
{
@@ -252,18 +290,12 @@ static ssize_t get_target(struct device *dev, struct device_attribute *devattr,
return sprintf(buf, "%d\n", rpm);
}
static ssize_t set_target(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
static int max6650_set_target(struct max6650_data *data, unsigned long rpm)
{
struct max6650_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int kscale, ktach;
unsigned long rpm;
int err;
err = kstrtoul(buf, 10, &rpm);
if (err)
return err;
if (rpm == 0)
return max6650_set_operating_mode(data, MAX6650_CFG_MODE_OFF);
rpm = clamp_val(rpm, FAN_RPM_MIN, FAN_RPM_MAX);
@@ -274,8 +306,6 @@ static ssize_t set_target(struct device *dev, struct device_attribute *devattr,
* KTACH = [(fCLK x KSCALE) / (256 x FanSpeed)] - 1
*/
mutex_lock(&data->update_lock);
kscale = DIV_FROM_REG(data->config);
ktach = ((clock * kscale) / (256 * rpm / 60)) - 1;
if (ktach < 0)
@@ -284,10 +314,30 @@ static ssize_t set_target(struct device *dev, struct device_attribute *devattr,
ktach = 255;
data->speed = ktach;
i2c_smbus_write_byte_data(client, MAX6650_REG_SPEED, data->speed);
return i2c_smbus_write_byte_data(data->client, MAX6650_REG_SPEED,
data->speed);
}
static ssize_t set_target(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
struct max6650_data *data = dev_get_drvdata(dev);
unsigned long rpm;
int err;
err = kstrtoul(buf, 10, &rpm);
if (err)
return err;
mutex_lock(&data->update_lock);
err = max6650_set_target(data, rpm);
mutex_unlock(&data->update_lock);
if (err < 0)
return err;
return count;
}
@@ -341,12 +391,11 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
data->dac = 180 - (180 * pwm)/255;
else
data->dac = 76 - (76 * pwm)/255;
i2c_smbus_write_byte_data(client, MAX6650_REG_DAC, data->dac);
err = i2c_smbus_write_byte_data(client, MAX6650_REG_DAC, data->dac);
mutex_unlock(&data->update_lock);
return count;
return err < 0 ? err : count;
}
/*
@@ -355,14 +404,14 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
* 0 = Fan always on
* 1 = Open loop, Voltage is set according to speed, not regulated.
* 2 = Closed loop, RPM for all fans regulated by fan1 tachometer
* 3 = Fan off
*/
static ssize_t get_enable(struct device *dev, struct device_attribute *devattr,
char *buf)
{
struct max6650_data *data = max6650_update_device(dev);
int mode = (data->config & MAX6650_CFG_MODE_MASK) >> 4;
int sysfs_modes[4] = {0, 1, 2, 1};
int sysfs_modes[4] = {0, 3, 2, 1};
return sprintf(buf, "%d\n", sysfs_modes[mode]);
}
@@ -371,25 +420,25 @@ static ssize_t set_enable(struct device *dev, struct device_attribute *devattr,
const char *buf, size_t count)
{
struct max6650_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int max6650_modes[3] = {0, 3, 2};
unsigned long mode;
int err;
const u8 max6650_modes[] = {
MAX6650_CFG_MODE_ON,
MAX6650_CFG_MODE_OPEN_LOOP,
MAX6650_CFG_MODE_CLOSED_LOOP,
MAX6650_CFG_MODE_OFF,
};
err = kstrtoul(buf, 10, &mode);
if (err)
return err;
if (mode > 2)
if (mode >= ARRAY_SIZE(max6650_modes))
return -EINVAL;
mutex_lock(&data->update_lock);
data->config = i2c_smbus_read_byte_data(client, MAX6650_REG_CONFIG);
data->config = (data->config & ~MAX6650_CFG_MODE_MASK)
| (max6650_modes[mode] << 4);
i2c_smbus_write_byte_data(client, MAX6650_REG_CONFIG, data->config);
max6650_set_operating_mode(data, max6650_modes[mode]);
mutex_unlock(&data->update_lock);
@@ -566,6 +615,18 @@ static int max6650_init_client(struct max6650_data *data,
struct device *dev = &client->dev;
int config;
int err = -EIO;
u32 voltage;
u32 prescale;
u32 target_rpm;
if (of_property_read_u32(dev->of_node, "maxim,fan-microvolt",
&voltage))
voltage = fan_voltage;
else
voltage /= 1000000; /* Microvolts to volts */
if (of_property_read_u32(dev->of_node, "maxim,fan-prescale",
&prescale))
prescale = prescaler;
config = i2c_smbus_read_byte_data(client, MAX6650_REG_CONFIG);
@@ -574,7 +635,7 @@ static int max6650_init_client(struct max6650_data *data,
return err;
}
switch (fan_voltage) {
switch (voltage) {
case 0:
break;
case 5:
@@ -584,14 +645,10 @@ static int max6650_init_client(struct max6650_data *data,
config |= MAX6650_CFG_V12;
break;
default:
dev_err(dev, "illegal value for fan_voltage (%d)\n",
fan_voltage);
dev_err(dev, "illegal value for fan_voltage (%d)\n", voltage);
}
dev_info(dev, "Fan voltage is set to %dV.\n",
(config & MAX6650_CFG_V12) ? 12 : 5);
switch (prescaler) {
switch (prescale) {
case 0:
break;
case 1:
@@ -614,28 +671,13 @@ static int max6650_init_client(struct max6650_data *data,
| MAX6650_CFG_PRESCALER_16;
break;
default:
dev_err(dev, "illegal value for prescaler (%d)\n", prescaler);
dev_err(dev, "illegal value for prescaler (%d)\n", prescale);
}
dev_info(dev, "Prescaler is set to %d.\n",
dev_info(dev, "Fan voltage: %dV, prescaler: %d.\n",
(config & MAX6650_CFG_V12) ? 12 : 5,
1 << (config & MAX6650_CFG_PRESCALER_MASK));
/*
* If mode is set to "full off", we change it to "open loop" and
* set DAC to 255, which has the same effect. We do this because
* there's no "full off" mode defined in hwmon specifications.
*/
if ((config & MAX6650_CFG_MODE_MASK) == MAX6650_CFG_MODE_OFF) {
dev_dbg(dev, "Change mode to open loop, full off.\n");
config = (config & ~MAX6650_CFG_MODE_MASK)
| MAX6650_CFG_MODE_OPEN_LOOP;
if (i2c_smbus_write_byte_data(client, MAX6650_REG_DAC, 255)) {
dev_err(dev, "DAC write error, aborting.\n");
return err;
}
}
if (i2c_smbus_write_byte_data(client, MAX6650_REG_CONFIG, config)) {
dev_err(dev, "Config write error, aborting.\n");
return err;
@@ -644,6 +686,12 @@ static int max6650_init_client(struct max6650_data *data,
data->config = config;
data->count = i2c_smbus_read_byte_data(client, MAX6650_REG_COUNT);
if (!of_property_read_u32(client->dev.of_node, "maxim,fan-target-rpm",
&target_rpm)) {
max6650_set_target(data, target_rpm);
max6650_set_operating_mode(data, MAX6650_CFG_MODE_CLOSED_LOOP);
}
return 0;
}
@@ -651,6 +699,8 @@ static int max6650_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
const struct of_device_id *of_id =
of_match_device(of_match_ptr(max6650_dt_match), dev);
struct max6650_data *data;
struct device *hwmon_dev;
int err;
@@ -661,7 +711,7 @@ static int max6650_probe(struct i2c_client *client,
data->client = client;
mutex_init(&data->update_lock);
data->nr_fans = id->driver_data;
data->nr_fans = of_id ? (int)(uintptr_t)of_id->data : id->driver_data;
/*
* Initialize the max6650 chip
@@ -691,6 +741,7 @@ MODULE_DEVICE_TABLE(i2c, max6650_id);
static struct i2c_driver max6650_driver = {
.driver = {
.name = "max6650",
.of_match_table = of_match_ptr(max6650_dt_match),
},
.probe = max6650_probe,
.id_table = max6650_id,
drivers/hwmon/nct6775.c
+17 -6
View File
@@ -195,6 +195,8 @@ superio_exit(int ioreg)
#define NUM_FAN 6
#define TEMP_SOURCE_VIRTUAL 0x1f
/* Common and NCT6775 specific data */
/* Voltage min/max registers for nr=7..14 are in bank 5 */
@@ -3940,7 +3942,7 @@ static int nct6775_probe(struct platform_device *pdev)
continue;
src = nct6775_read_value(data, data->REG_TEMP_SEL[i]) & 0x1f;
if (!src || (mask & (1 << src)))
if (!src)
continue;
if (src >= data->temp_label_num ||
@@ -3952,7 +3954,16 @@ static int nct6775_probe(struct platform_device *pdev)
continue;
}
mask |= 1 << src;
/*
* For virtual temperature sources, the 'virtual' temperature
* for each fan reflects a different temperature, and there
* are no duplicates.
*/
if (src != TEMP_SOURCE_VIRTUAL) {
if (mask & (1 << src))
continue;
mask |= 1 << src;
}
/* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
if (src <= data->temp_fixed_num) {
@@ -4232,11 +4243,11 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
if (err)
return err;
if (force_id)
val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8) |
superio_inb(sioaddr, SIO_REG_DEVID + 1);
if (force_id && val != 0xffff)
val = force_id;
else
val = (superio_inb(sioaddr, SIO_REG_DEVID) << 8)
| superio_inb(sioaddr, SIO_REG_DEVID + 1);
switch (val & SIO_ID_MASK) {
case SIO_NCT6106_ID:
sio_data->kind = nct6106;
drivers/hwmon/nct7904.c
+270 -285
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