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Diffstat (limited to 'drivers/hwmon/adt7470.c')
-rw-r--r--drivers/hwmon/adt7470.c1469
1 files changed, 735 insertions, 734 deletions
diff --git a/drivers/hwmon/adt7470.c b/drivers/hwmon/adt7470.c
index 0f34bca9f5e5..dbee6926fa05 100644
--- a/drivers/hwmon/adt7470.c
+++ b/drivers/hwmon/adt7470.c
@@ -1,22 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* A hwmon driver for the Analog Devices ADT7470
* Copyright (C) 2007 IBM
*
- * Author: Darrick J. Wong <djwong@us.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Author: Darrick J. Wong <darrick.wong@oracle.com>
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -31,7 +18,10 @@
#include <linux/delay.h>
#include <linux/log2.h>
#include <linux/kthread.h>
+#include <linux/regmap.h>
+#include <linux/sched.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 };
@@ -47,7 +37,10 @@ static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END };
#define ADT7470_REG_PWM_MAX_BASE_ADDR 0x38
#define ADT7470_REG_PWM_MAX_MAX_ADDR 0x3B
#define ADT7470_REG_CFG 0x40
+#define ADT7470_STRT_MASK 0x01
+#define ADT7470_TEST_MASK 0x02
#define ADT7470_FSPD_MASK 0x04
+#define ADT7470_T05_STB_MASK 0x80
#define ADT7470_REG_ALARM1 0x41
#define ADT7470_R1T_ALARM 0x01
#define ADT7470_R2T_ALARM 0x02
@@ -83,6 +76,7 @@ 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
@@ -142,9 +136,13 @@ 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 device *hwmon_dev;
- struct attribute_group attrs;
+ struct regmap *regmap;
struct mutex lock;
char sensors_valid;
char limits_valid;
@@ -171,95 +169,83 @@ 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;
};
-static int adt7470_probe(struct i2c_client *client,
- const struct i2c_device_id *id);
-static int adt7470_detect(struct i2c_client *client,
- struct i2c_board_info *info);
-static int adt7470_remove(struct i2c_client *client);
-
-static const struct i2c_device_id adt7470_id[] = {
- { "adt7470", 0 },
- { }
-};
-MODULE_DEVICE_TABLE(i2c, adt7470_id);
-
-static struct i2c_driver adt7470_driver = {
- .class = I2C_CLASS_HWMON,
- .driver = {
- .name = "adt7470",
- },
- .probe = adt7470_probe,
- .remove = adt7470_remove,
- .id_table = adt7470_id,
- .detect = adt7470_detect,
- .address_list = normal_i2c,
-};
-
/*
* 16-bit registers on the ADT7470 are low-byte first. The data sheet says
* that the low byte must be read before the high byte.
*/
-static inline int adt7470_read_word_data(struct i2c_client *client, u8 reg)
+static inline int adt7470_read_word_data(struct adt7470_data *data, unsigned int reg,
+ unsigned int *val)
{
- u16 foo;
- foo = i2c_smbus_read_byte_data(client, reg);
- foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8);
- return foo;
-}
+ u8 regval[2];
+ int err;
-static inline int adt7470_write_word_data(struct i2c_client *client, u8 reg,
- u16 value)
-{
- return i2c_smbus_write_byte_data(client, reg, value & 0xFF)
- && i2c_smbus_write_byte_data(client, reg + 1, value >> 8);
+ err = regmap_bulk_read(data->regmap, reg, &regval, 2);
+ if (err < 0)
+ return err;
+
+ *val = regval[0] | (regval[1] << 8);
+
+ return 0;
}
-static void adt7470_init_client(struct i2c_client *client)
+static inline int adt7470_write_word_data(struct adt7470_data *data, unsigned int reg,
+ unsigned int val)
{
- int reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG);
+ u8 regval[2];
- if (reg < 0) {
- dev_err(&client->dev, "cannot read configuration register\n");
- } else {
- /* start monitoring (and do a self-test) */
- i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg | 3);
- }
+ regval[0] = val & 0xFF;
+ regval[1] = val >> 8;
+
+ return regmap_bulk_write(data->regmap, reg, &regval, 2);
}
/* Probe for temperature sensors. Assumes lock is held */
-static int adt7470_read_temperatures(struct i2c_client *client,
- struct adt7470_data *data)
+static int adt7470_read_temperatures(struct adt7470_data *data)
{
unsigned long res;
+ unsigned int pwm_cfg[2];
+ int err;
int i;
- u8 cfg, pwm[4], pwm_cfg[2];
+ u8 pwm[ADT7470_FAN_COUNT];
/* save pwm[1-4] config register */
- pwm_cfg[0] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM_CFG(0));
- pwm_cfg[1] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM_CFG(2));
+ err = regmap_read(data->regmap, ADT7470_REG_PWM_CFG(0), &pwm_cfg[0]);
+ if (err < 0)
+ return err;
+ err = regmap_read(data->regmap, ADT7470_REG_PWM_CFG(2), &pwm_cfg[1]);
+ if (err < 0)
+ return err;
/* set manual pwm to whatever it is set to now */
- for (i = 0; i < ADT7470_FAN_COUNT; i++)
- pwm[i] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM(i));
+ err = regmap_bulk_read(data->regmap, ADT7470_REG_PWM(0), &pwm[0],
+ ADT7470_PWM_COUNT);
+ if (err < 0)
+ return err;
/* put pwm in manual mode */
- i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(0),
- pwm_cfg[0] & ~(ADT7470_PWM_AUTO_MASK));
- i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(2),
- pwm_cfg[1] & ~(ADT7470_PWM_AUTO_MASK));
+ err = regmap_update_bits(data->regmap, ADT7470_REG_PWM_CFG(0),
+ ADT7470_PWM_AUTO_MASK, 0);
+ if (err < 0)
+ return err;
+ err = regmap_update_bits(data->regmap, ADT7470_REG_PWM_CFG(2),
+ ADT7470_PWM_AUTO_MASK, 0);
+ if (err < 0)
+ return err;
/* write pwm control to whatever it was */
- for (i = 0; i < ADT7470_FAN_COUNT; i++)
- i2c_smbus_write_byte_data(client, ADT7470_REG_PWM(i), pwm[i]);
+ err = regmap_bulk_write(data->regmap, ADT7470_REG_PWM(0), &pwm[0],
+ ADT7470_PWM_COUNT);
+ if (err < 0)
+ return err;
/* start reading temperature sensors */
- cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG);
- cfg |= 0x80;
- i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg);
+ err = regmap_update_bits(data->regmap, ADT7470_REG_CFG,
+ ADT7470_T05_STB_MASK, ADT7470_T05_STB_MASK);
+ if (err < 0)
+ return err;
/* Delay is 200ms * number of temp sensors. */
res = msleep_interruptible((data->num_temp_sensors >= 0 ?
@@ -267,26 +253,31 @@ static int adt7470_read_temperatures(struct i2c_client *client,
TEMP_COLLECTION_TIME));
/* done reading temperature sensors */
- cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG);
- cfg &= ~0x80;
- i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg);
+ err = regmap_update_bits(data->regmap, ADT7470_REG_CFG,
+ ADT7470_T05_STB_MASK, 0);
+ if (err < 0)
+ return err;
/* restore pwm[1-4] config registers */
- i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(0), pwm_cfg[0]);
- i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(2), pwm_cfg[1]);
+ err = regmap_write(data->regmap, ADT7470_REG_PWM_CFG(0), pwm_cfg[0]);
+ if (err < 0)
+ return err;
+ err = regmap_write(data->regmap, ADT7470_REG_PWM_CFG(2), pwm_cfg[1]);
+ if (err < 0)
+ return err;
- if (res) {
- pr_err("ha ha, interrupted\n");
+ if (res)
return -EAGAIN;
- }
/* Only count fans if we have to */
if (data->num_temp_sensors >= 0)
return 0;
+ err = regmap_bulk_read(data->regmap, ADT7470_TEMP_REG(0), &data->temp[0],
+ ADT7470_TEMP_COUNT);
+ if (err < 0)
+ return err;
for (i = 0; i < ADT7470_TEMP_COUNT; i++) {
- data->temp[i] = i2c_smbus_read_byte_data(client,
- ADT7470_TEMP_REG(i));
if (data->temp[i])
data->num_temp_sensors = i + 1;
}
@@ -301,152 +292,200 @@ static int adt7470_update_thread(void *p)
while (!kthread_should_stop()) {
mutex_lock(&data->lock);
- adt7470_read_temperatures(client, data);
+ adt7470_read_temperatures(data);
mutex_unlock(&data->lock);
+
if (kthread_should_stop())
break;
- msleep_interruptible(data->auto_update_interval);
+
+ schedule_timeout_interruptible(msecs_to_jiffies(data->auto_update_interval));
}
- complete_all(&data->auto_update_stop);
return 0;
}
-static struct adt7470_data *adt7470_update_device(struct device *dev)
+static int adt7470_update_sensors(struct adt7470_data *data)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
- unsigned long local_jiffies = jiffies;
- u8 cfg;
+ unsigned int val;
+ int err;
int i;
- int need_sensors = 1;
- int need_limits = 1;
-
- /*
- * Figure out if we need to update the shadow registers.
- * Lockless means that we may occasionally report out of
- * date data.
- */
- if (time_before(local_jiffies, data->sensors_last_updated +
- SENSOR_REFRESH_INTERVAL) &&
- data->sensors_valid)
- need_sensors = 0;
-
- if (time_before(local_jiffies, data->limits_last_updated +
- LIMIT_REFRESH_INTERVAL) &&
- data->limits_valid)
- need_limits = 0;
-
- if (!need_sensors && !need_limits)
- return data;
-
- mutex_lock(&data->lock);
- if (!need_sensors)
- goto no_sensor_update;
if (!data->temperatures_probed)
- adt7470_read_temperatures(client, data);
+ err = adt7470_read_temperatures(data);
else
- for (i = 0; i < ADT7470_TEMP_COUNT; i++)
- data->temp[i] = i2c_smbus_read_byte_data(client,
- ADT7470_TEMP_REG(i));
+ err = regmap_bulk_read(data->regmap, ADT7470_TEMP_REG(0), &data->temp[0],
+ ADT7470_TEMP_COUNT);
+ if (err < 0)
+ return err;
- for (i = 0; i < ADT7470_FAN_COUNT; i++)
- data->fan[i] = adt7470_read_word_data(client,
- ADT7470_REG_FAN(i));
+ for (i = 0; i < ADT7470_FAN_COUNT; i++) {
+ err = adt7470_read_word_data(data, ADT7470_REG_FAN(i), &val);
+ if (err < 0)
+ return err;
+ data->fan[i] = val;
+ }
- for (i = 0; i < ADT7470_PWM_COUNT; i++) {
- int reg;
- int reg_mask;
+ err = regmap_bulk_read(data->regmap, ADT7470_REG_PWM(0), &data->pwm[0], ADT7470_PWM_COUNT);
+ if (err < 0)
+ return err;
- data->pwm[i] = i2c_smbus_read_byte_data(client,
- ADT7470_REG_PWM(i));
+ for (i = 0; i < ADT7470_PWM_COUNT; i++) {
+ unsigned int mask;
if (i % 2)
- reg_mask = ADT7470_PWM2_AUTO_MASK;
+ mask = ADT7470_PWM2_AUTO_MASK;
else
- reg_mask = ADT7470_PWM1_AUTO_MASK;
+ mask = ADT7470_PWM1_AUTO_MASK;
- reg = ADT7470_REG_PWM_CFG(i);
- if (i2c_smbus_read_byte_data(client, reg) & reg_mask)
- data->pwm_automatic[i] = 1;
- else
- data->pwm_automatic[i] = 0;
+ err = regmap_read(data->regmap, ADT7470_REG_PWM_CFG(i), &val);
+ if (err < 0)
+ return err;
+ data->pwm_automatic[i] = !!(val & mask);
- reg = ADT7470_REG_PWM_AUTO_TEMP(i);
- cfg = i2c_smbus_read_byte_data(client, reg);
+ err = regmap_read(data->regmap, ADT7470_REG_PWM_AUTO_TEMP(i), &val);
+ if (err < 0)
+ return err;
if (!(i % 2))
- data->pwm_auto_temp[i] = cfg >> 4;
+ data->pwm_auto_temp[i] = val >> 4;
else
- data->pwm_auto_temp[i] = cfg & 0xF;
+ data->pwm_auto_temp[i] = val & 0xF;
}
- if (i2c_smbus_read_byte_data(client, ADT7470_REG_CFG) &
- ADT7470_FSPD_MASK)
- data->force_pwm_max = 1;
- else
- data->force_pwm_max = 0;
+ err = regmap_read(data->regmap, ADT7470_REG_CFG, &val);
+ if (err < 0)
+ return err;
+ data->force_pwm_max = !!(val & ADT7470_FSPD_MASK);
- data->alarm = i2c_smbus_read_byte_data(client, ADT7470_REG_ALARM1);
- if (data->alarm & ADT7470_OOL_ALARM)
- data->alarm |= ALARM2(i2c_smbus_read_byte_data(client,
- ADT7470_REG_ALARM2));
- data->alarms_mask = adt7470_read_word_data(client,
- ADT7470_REG_ALARM1_MASK);
+ err = regmap_read(data->regmap, ADT7470_REG_ALARM1, &val);
+ if (err < 0)
+ return err;
+ data->alarm = val;
+ if (data->alarm & ADT7470_OOL_ALARM) {
+ err = regmap_read(data->regmap, ADT7470_REG_ALARM2, &val);
+ if (err < 0)
+ return err;
+ data->alarm |= ALARM2(val);
+ }
- data->sensors_last_updated = local_jiffies;
- data->sensors_valid = 1;
+ err = adt7470_read_word_data(data, ADT7470_REG_ALARM1_MASK, &val);
+ if (err < 0)
+ return err;
+ data->alarms_mask = val;
-no_sensor_update:
- if (!need_limits)
- goto out;
+ return 0;
+}
+
+static int adt7470_update_limits(struct adt7470_data *data)
+{
+ unsigned int val;
+ int err;
+ int i;
for (i = 0; i < ADT7470_TEMP_COUNT; i++) {
- data->temp_min[i] = i2c_smbus_read_byte_data(client,
- ADT7470_TEMP_MIN_REG(i));
- data->temp_max[i] = i2c_smbus_read_byte_data(client,
- ADT7470_TEMP_MAX_REG(i));
+ err = regmap_read(data->regmap, ADT7470_TEMP_MIN_REG(i), &val);
+ if (err < 0)
+ return err;
+ data->temp_min[i] = (s8)val;
+ err = regmap_read(data->regmap, ADT7470_TEMP_MAX_REG(i), &val);
+ if (err < 0)
+ return err;
+ data->temp_max[i] = (s8)val;
}
for (i = 0; i < ADT7470_FAN_COUNT; i++) {
- data->fan_min[i] = adt7470_read_word_data(client,
- ADT7470_REG_FAN_MIN(i));
- data->fan_max[i] = adt7470_read_word_data(client,
- ADT7470_REG_FAN_MAX(i));
+ err = adt7470_read_word_data(data, ADT7470_REG_FAN_MIN(i), &val);
+ if (err < 0)
+ return err;
+ data->fan_min[i] = val;
+ err = adt7470_read_word_data(data, ADT7470_REG_FAN_MAX(i), &val);
+ if (err < 0)
+ return err;
+ data->fan_max[i] = val;
}
for (i = 0; i < ADT7470_PWM_COUNT; i++) {
- data->pwm_max[i] = i2c_smbus_read_byte_data(client,
- ADT7470_REG_PWM_MAX(i));
- data->pwm_min[i] = i2c_smbus_read_byte_data(client,
- ADT7470_REG_PWM_MIN(i));
- data->pwm_tmin[i] = i2c_smbus_read_byte_data(client,
- ADT7470_REG_PWM_TMIN(i));
+ err = regmap_read(data->regmap, ADT7470_REG_PWM_MAX(i), &val);
+ if (err < 0)
+ return err;
+ data->pwm_max[i] = val;
+ err = regmap_read(data->regmap, ADT7470_REG_PWM_MIN(i), &val);
+ if (err < 0)
+ return err;
+ data->pwm_min[i] = val;
+ err = regmap_read(data->regmap, ADT7470_REG_PWM_TMIN(i), &val);
+ if (err < 0)
+ return err;
+ data->pwm_tmin[i] = (s8)val;
}
- data->limits_last_updated = local_jiffies;
- data->limits_valid = 1;
+ return 0;
+}
+static struct adt7470_data *adt7470_update_device(struct device *dev)
+{
+ struct adt7470_data *data = dev_get_drvdata(dev);
+ unsigned long local_jiffies = jiffies;
+ int need_sensors = 1;
+ int need_limits = 1;
+ int err;
+
+ /*
+ * Figure out if we need to update the shadow registers.
+ * Lockless means that we may occasionally report out of
+ * date data.
+ */
+ if (time_before(local_jiffies, data->sensors_last_updated +
+ SENSOR_REFRESH_INTERVAL) &&
+ data->sensors_valid)
+ need_sensors = 0;
+
+ if (time_before(local_jiffies, data->limits_last_updated +
+ LIMIT_REFRESH_INTERVAL) &&
+ data->limits_valid)
+ need_limits = 0;
+
+ if (!need_sensors && !need_limits)
+ return data;
+
+ mutex_lock(&data->lock);
+ if (need_sensors) {
+ err = adt7470_update_sensors(data);
+ if (err < 0)
+ goto out;
+ data->sensors_last_updated = local_jiffies;
+ data->sensors_valid = 1;
+ }
+
+ if (need_limits) {
+ err = adt7470_update_limits(data);
+ if (err < 0)
+ goto out;
+ data->limits_last_updated = local_jiffies;
+ data->limits_valid = 1;
+ }
out:
mutex_unlock(&data->lock);
- return data;
+
+ return err < 0 ? ERR_PTR(err) : data;
}
-static ssize_t show_auto_update_interval(struct device *dev,
+static ssize_t auto_update_interval_show(struct device *dev,
struct device_attribute *devattr,
char *buf)
{
struct adt7470_data *data = adt7470_update_device(dev);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
return sprintf(buf, "%d\n", data->auto_update_interval);
}
-static ssize_t set_auto_update_interval(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
+static ssize_t auto_update_interval_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
+ struct adt7470_data *data = dev_get_drvdata(dev);
long temp;
if (kstrtol(buf, 10, &temp))
@@ -461,21 +500,23 @@ static ssize_t set_auto_update_interval(struct device *dev,
return count;
}
-static ssize_t show_num_temp_sensors(struct device *dev,
+static ssize_t num_temp_sensors_show(struct device *dev,
struct device_attribute *devattr,
char *buf)
{
struct adt7470_data *data = adt7470_update_device(dev);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
return sprintf(buf, "%d\n", data->num_temp_sensors);
}
-static ssize_t set_num_temp_sensors(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
+static ssize_t num_temp_sensors_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
+ struct adt7470_data *data = dev_get_drvdata(dev);
long temp;
if (kstrtol(buf, 10, &temp))
@@ -492,259 +533,338 @@ static ssize_t set_num_temp_sensors(struct device *dev,
return count;
}
-static ssize_t show_temp_min(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
+static int adt7470_temp_read(struct device *dev, u32 attr, int channel, long *val)
{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adt7470_data *data = adt7470_update_device(dev);
- return sprintf(buf, "%d\n", 1000 * data->temp_min[attr->index]);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ switch (attr) {
+ case hwmon_temp_input:
+ *val = 1000 * data->temp[channel];
+ break;
+ case hwmon_temp_min:
+ *val = 1000 * data->temp_min[channel];
+ break;
+ case hwmon_temp_max:
+ *val = 1000 * data->temp_max[channel];
+ break;
+ case hwmon_temp_alarm:
+ *val = !!(data->alarm & channel);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
}
-static ssize_t set_temp_min(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
+static int adt7470_temp_write(struct device *dev, u32 attr, int channel, long val)
{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
- long temp;
-
- if (kstrtol(buf, 10, &temp))
- return -EINVAL;
+ struct adt7470_data *data = dev_get_drvdata(dev);
+ int err;
- temp = DIV_ROUND_CLOSEST(temp, 1000);
- temp = clamp_val(temp, 0, 255);
+ val = clamp_val(val, -128000, 127000);
+ val = DIV_ROUND_CLOSEST(val, 1000);
- mutex_lock(&data->lock);
- data->temp_min[attr->index] = temp;
- i2c_smbus_write_byte_data(client, ADT7470_TEMP_MIN_REG(attr->index),
- temp);
- mutex_unlock(&data->lock);
+ switch (attr) {
+ case hwmon_temp_min:
+ mutex_lock(&data->lock);
+ data->temp_min[channel] = val;
+ err = regmap_write(data->regmap, ADT7470_TEMP_MIN_REG(channel), val);
+ mutex_unlock(&data->lock);
+ break;
+ case hwmon_temp_max:
+ mutex_lock(&data->lock);
+ data->temp_max[channel] = val;
+ err = regmap_write(data->regmap, ADT7470_TEMP_MAX_REG(channel), val);
+ mutex_unlock(&data->lock);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
- return count;
+ return err;
}
-static ssize_t show_temp_max(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
+static ssize_t alarm_mask_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adt7470_data *data = adt7470_update_device(dev);
- return sprintf(buf, "%d\n", 1000 * data->temp_max[attr->index]);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ return sprintf(buf, "%x\n", data->alarms_mask);
}
-static ssize_t set_temp_max(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
+static ssize_t alarm_mask_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
- long temp;
+ struct adt7470_data *data = dev_get_drvdata(dev);
+ long mask;
+ int err;
- if (kstrtol(buf, 10, &temp))
+ if (kstrtoul(buf, 0, &mask))
return -EINVAL;
- temp = DIV_ROUND_CLOSEST(temp, 1000);
- temp = clamp_val(temp, 0, 255);
+ if (mask & ~0xffff)
+ return -EINVAL;
mutex_lock(&data->lock);
- data->temp_max[attr->index] = temp;
- i2c_smbus_write_byte_data(client, ADT7470_TEMP_MAX_REG(attr->index),
- temp);
+ data->alarms_mask = mask;
+ err = adt7470_write_word_data(data, ADT7470_REG_ALARM1_MASK, mask);
mutex_unlock(&data->lock);
- return count;
-}
-
-static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7470_data *data = adt7470_update_device(dev);
- return sprintf(buf, "%d\n", 1000 * data->temp[attr->index]);
+ return err < 0 ? err : count;
}
-static ssize_t show_alarm_mask(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
+static int adt7470_fan_read(struct device *dev, u32 attr, int channel, long *val)
{
struct adt7470_data *data = adt7470_update_device(dev);
- return sprintf(buf, "%x\n", data->alarms_mask);
-}
+ if (IS_ERR(data))
+ return PTR_ERR(data);
-static ssize_t show_fan_max(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7470_data *data = adt7470_update_device(dev);
+ switch (attr) {
+ case hwmon_fan_input:
+ if (FAN_DATA_VALID(data->fan[channel]))
+ *val = FAN_PERIOD_TO_RPM(data->fan[channel]);
+ else
+ *val = 0;
+ break;
+ case hwmon_fan_min:
+ if (FAN_DATA_VALID(data->fan_min[channel]))
+ *val = FAN_PERIOD_TO_RPM(data->fan_min[channel]);
+ else
+ *val = 0;
+ break;
+ case hwmon_fan_max:
+ if (FAN_DATA_VALID(data->fan_max[channel]))
+ *val = FAN_PERIOD_TO_RPM(data->fan_max[channel]);
+ else
+ *val = 0;
+ break;
+ case hwmon_fan_alarm:
+ *val = !!(data->alarm & (1 << (12 + channel)));
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
- if (FAN_DATA_VALID(data->fan_max[attr->index]))
- return sprintf(buf, "%d\n",
- FAN_PERIOD_TO_RPM(data->fan_max[attr->index]));
- else
- return sprintf(buf, "0\n");
+ return 0;
}
-static ssize_t set_fan_max(struct device *dev,
- struct device_attribute *devattr,
- const char *buf, size_t count)
+static int adt7470_fan_write(struct device *dev, u32 attr, int channel, long val)
{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
- long temp;
+ struct adt7470_data *data = dev_get_drvdata(dev);
+ int err;
- if (kstrtol(buf, 10, &temp) || !temp)
+ if (val <= 0)
return -EINVAL;
- temp = FAN_RPM_TO_PERIOD(temp);
- temp = clamp_val(temp, 1, 65534);
+ val = FAN_RPM_TO_PERIOD(val);
+ val = clamp_val(val, 1, 65534);
- mutex_lock(&data->lock);
- data->fan_max[attr->index] = temp;
- adt7470_write_word_data(client, ADT7470_REG_FAN_MAX(attr->index), temp);
- mutex_unlock(&data->lock);
+ switch (attr) {
+ case hwmon_fan_min:
+ mutex_lock(&data->lock);
+ data->fan_min[channel] = val;
+ err = adt7470_write_word_data(data, ADT7470_REG_FAN_MIN(channel), val);
+ mutex_unlock(&data->lock);
+ break;
+ case hwmon_fan_max:
+ mutex_lock(&data->lock);
+ data->fan_max[channel] = val;
+ err = adt7470_write_word_data(data, ADT7470_REG_FAN_MAX(channel), val);
+ mutex_unlock(&data->lock);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
- return count;
+ return err;
}
-static ssize_t show_fan_min(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
+static ssize_t force_pwm_max_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adt7470_data *data = adt7470_update_device(dev);
- if (FAN_DATA_VALID(data->fan_min[attr->index]))
- return sprintf(buf, "%d\n",
- FAN_PERIOD_TO_RPM(data->fan_min[attr->index]));
- else
- return sprintf(buf, "0\n");
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ return sprintf(buf, "%d\n", data->force_pwm_max);
}
-static ssize_t set_fan_min(struct device *dev,
- struct device_attribute *devattr,
- const char *buf, size_t count)
+static ssize_t force_pwm_max_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
+ struct adt7470_data *data = dev_get_drvdata(dev);
long temp;
+ int err;
- if (kstrtol(buf, 10, &temp) || !temp)
+ if (kstrtol(buf, 10, &temp))
return -EINVAL;
- temp = FAN_RPM_TO_PERIOD(temp);
- temp = clamp_val(temp, 1, 65534);
-
mutex_lock(&data->lock);
- data->fan_min[attr->index] = temp;
- adt7470_write_word_data(client, ADT7470_REG_FAN_MIN(attr->index), temp);
+ data->force_pwm_max = temp;
+ err = regmap_update_bits(data->regmap, ADT7470_REG_CFG,
+ ADT7470_FSPD_MASK,
+ temp ? ADT7470_FSPD_MASK : 0);
mutex_unlock(&data->lock);
- return count;
+ return err < 0 ? err : count;
}
-static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
- char *buf)
+/* 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 int pwm1_freq_get(struct device *dev)
{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7470_data *data = adt7470_update_device(dev);
+ struct adt7470_data *data = dev_get_drvdata(dev);
+ unsigned int regs[2] = {ADT7470_REG_CFG, ADT7470_REG_CFG_2};
+ u8 cfg_reg[2];
+ int index;
+ int err;
- if (FAN_DATA_VALID(data->fan[attr->index]))
- return sprintf(buf, "%d\n",
- FAN_PERIOD_TO_RPM(data->fan[attr->index]));
- else
- return sprintf(buf, "0\n");
+ err = regmap_multi_reg_read(data->regmap, regs, cfg_reg, 2);
+ if (err)
+ return err;
+
+ index = (cfg_reg[1] & ADT7470_FREQ_MASK) >> ADT7470_FREQ_SHIFT;
+ if (!(cfg_reg[0] & ADT7470_CFG_LF))
+ index += 8;
+ if (index >= ARRAY_SIZE(adt7470_freq_map))
+ index = ARRAY_SIZE(adt7470_freq_map) - 1;
+
+ return adt7470_freq_map[index];
}
-static ssize_t show_force_pwm_max(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
+static int adt7470_pwm_read(struct device *dev, u32 attr, int channel, long *val)
{
struct adt7470_data *data = adt7470_update_device(dev);
- return sprintf(buf, "%d\n", data->force_pwm_max);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
+ switch (attr) {
+ case hwmon_pwm_input:
+ *val = data->pwm[channel];
+ break;
+ case hwmon_pwm_enable:
+ *val = 1 + data->pwm_automatic[channel];
+ break;
+ case hwmon_pwm_freq:
+ *val = pwm1_freq_get(dev);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
}
-static ssize_t set_force_pwm_max(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
+static int pwm1_freq_set(struct device *dev, long freq)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
- long temp;
- u8 reg;
+ struct adt7470_data *data = dev_get_drvdata(dev);
+ unsigned int low_freq = ADT7470_CFG_LF;
+ int index;
+ int err;
- if (kstrtol(buf, 10, &temp))
- 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);
- data->force_pwm_max = temp;
- reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG);
- if (temp)
- reg |= ADT7470_FSPD_MASK;
- else
- reg &= ~ADT7470_FSPD_MASK;
- i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg);
- mutex_unlock(&data->lock);
+ /* Configuration Register 1 */
+ err = regmap_update_bits(data->regmap, ADT7470_REG_CFG,
+ ADT7470_CFG_LF, low_freq);
+ if (err < 0)
+ goto out;
- return count;
-}
+ /* Configuration Register 2 */
+ err = regmap_update_bits(data->regmap, ADT7470_REG_CFG_2,
+ ADT7470_FREQ_MASK,
+ index << ADT7470_FREQ_SHIFT);
+out:
+ mutex_unlock(&data->lock);
-static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7470_data *data = adt7470_update_device(dev);
- return sprintf(buf, "%d\n", data->pwm[attr->index]);
+ return err;
}
-static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
- const char *buf, size_t count)
+static int adt7470_pwm_write(struct device *dev, u32 attr, int channel, long val)
{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
- long temp;
+ struct adt7470_data *data = dev_get_drvdata(dev);
+ unsigned int pwm_auto_reg_mask;
+ int err;
- if (kstrtol(buf, 10, &temp))
- return -EINVAL;
+ switch (attr) {
+ case hwmon_pwm_input:
+ val = clamp_val(val, 0, 255);
+ mutex_lock(&data->lock);
+ data->pwm[channel] = val;
+ err = regmap_write(data->regmap, ADT7470_REG_PWM(channel),
+ data->pwm[channel]);
+ mutex_unlock(&data->lock);
+ break;
+ case hwmon_pwm_enable:
+ if (channel % 2)
+ pwm_auto_reg_mask = ADT7470_PWM2_AUTO_MASK;
+ else
+ pwm_auto_reg_mask = ADT7470_PWM1_AUTO_MASK;
- temp = clamp_val(temp, 0, 255);
+ if (val != 2 && val != 1)
+ return -EINVAL;
+ val--;
- mutex_lock(&data->lock);
- data->pwm[attr->index] = temp;
- i2c_smbus_write_byte_data(client, ADT7470_REG_PWM(attr->index), temp);
- mutex_unlock(&data->lock);
+ mutex_lock(&data->lock);
+ data->pwm_automatic[channel] = val;
+ err = regmap_update_bits(data->regmap, ADT7470_REG_PWM_CFG(channel),
+ pwm_auto_reg_mask,
+ val ? pwm_auto_reg_mask : 0);
+ mutex_unlock(&data->lock);
+ break;
+ case hwmon_pwm_freq:
+ err = pwm1_freq_set(dev, val);
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
- return count;
+ return err;
}
-static ssize_t show_pwm_max(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
+static ssize_t pwm_max_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adt7470_data *data = adt7470_update_device(dev);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
return sprintf(buf, "%d\n", data->pwm_max[attr->index]);
}
-static ssize_t set_pwm_max(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
+static ssize_t pwm_max_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
+ struct adt7470_data *data = dev_get_drvdata(dev);
long temp;
+ int err;
if (kstrtol(buf, 10, &temp))
return -EINVAL;
@@ -753,31 +873,33 @@ static ssize_t set_pwm_max(struct device *dev,
mutex_lock(&data->lock);
data->pwm_max[attr->index] = temp;
- i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MAX(attr->index),
- temp);
+ err = regmap_write(data->regmap, ADT7470_REG_PWM_MAX(attr->index),
+ temp);
mutex_unlock(&data->lock);
- return count;
+ return err < 0 ? err : count;
}
-static ssize_t show_pwm_min(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
+static ssize_t pwm_min_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adt7470_data *data = adt7470_update_device(dev);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
return sprintf(buf, "%d\n", data->pwm_min[attr->index]);
}
-static ssize_t set_pwm_min(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
+static ssize_t pwm_min_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
+ struct adt7470_data *data = dev_get_drvdata(dev);
long temp;
+ int err;
if (kstrtol(buf, 10, &temp))
return -EINVAL;
@@ -786,112 +908,73 @@ static ssize_t set_pwm_min(struct device *dev,
mutex_lock(&data->lock);
data->pwm_min[attr->index] = temp;
- i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MIN(attr->index),
- temp);
+ err = regmap_write(data->regmap, ADT7470_REG_PWM_MIN(attr->index),
+ temp);
mutex_unlock(&data->lock);
- return count;
+ return err < 0 ? err : count;
}
-static ssize_t show_pwm_tmax(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
+static ssize_t pwm_tmax_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adt7470_data *data = adt7470_update_device(dev);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
/* the datasheet says that tmax = tmin + 20C */
return sprintf(buf, "%d\n", 1000 * (20 + data->pwm_tmin[attr->index]));
}
-static ssize_t show_pwm_tmin(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
+static ssize_t pwm_tmin_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adt7470_data *data = adt7470_update_device(dev);
+
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+
return sprintf(buf, "%d\n", 1000 * data->pwm_tmin[attr->index]);
}
-static ssize_t set_pwm_tmin(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
+static ssize_t pwm_tmin_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
+ struct adt7470_data *data = dev_get_drvdata(dev);
long temp;
+ int err;
if (kstrtol(buf, 10, &temp))
return -EINVAL;
+ temp = clamp_val(temp, -128000, 127000);
temp = DIV_ROUND_CLOSEST(temp, 1000);
- temp = clamp_val(temp, 0, 255);
mutex_lock(&data->lock);
data->pwm_tmin[attr->index] = temp;
- i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_TMIN(attr->index),
- temp);
+ err = regmap_write(data->regmap, ADT7470_REG_PWM_TMIN(attr->index),
+ temp);
mutex_unlock(&data->lock);
- return count;
+ return err < 0 ? err : count;
}
-static ssize_t show_pwm_auto(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
+static ssize_t pwm_auto_temp_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct adt7470_data *data = adt7470_update_device(dev);
- return sprintf(buf, "%d\n", 1 + data->pwm_automatic[attr->index]);
-}
-
-static ssize_t set_pwm_auto(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
- int pwm_auto_reg = ADT7470_REG_PWM_CFG(attr->index);
- int pwm_auto_reg_mask;
- long temp;
- u8 reg;
-
- if (kstrtol(buf, 10, &temp))
- return -EINVAL;
-
- if (attr->index % 2)
- pwm_auto_reg_mask = ADT7470_PWM2_AUTO_MASK;
- else
- pwm_auto_reg_mask = ADT7470_PWM1_AUTO_MASK;
-
- if (temp != 2 && temp != 1)
- return -EINVAL;
- temp--;
-
- mutex_lock(&data->lock);
- data->pwm_automatic[attr->index] = temp;
- reg = i2c_smbus_read_byte_data(client, pwm_auto_reg);
- if (temp)
- reg |= pwm_auto_reg_mask;
- else
- reg &= ~pwm_auto_reg_mask;
- i2c_smbus_write_byte_data(client, pwm_auto_reg, reg);
- mutex_unlock(&data->lock);
+ u8 ctrl;
- return count;
-}
-
-static ssize_t show_pwm_auto_temp(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7470_data *data = adt7470_update_device(dev);
- u8 ctrl = data->pwm_auto_temp[attr->index];
+ if (IS_ERR(data))
+ return PTR_ERR(data);
+ ctrl = data->pwm_auto_temp[attr->index];
if (ctrl)
return sprintf(buf, "%d\n", 1 << (ctrl - 1));
else
@@ -907,17 +990,16 @@ static int cvt_auto_temp(int input)
return ilog2(input) + 1;
}
-static ssize_t set_pwm_auto_temp(struct device *dev,
- struct device_attribute *devattr,
- const char *buf,
- size_t count)
+static ssize_t pwm_auto_temp_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
{
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct i2c_client *client = to_i2c_client(dev);
- struct adt7470_data *data = i2c_get_clientdata(client);
+ struct adt7470_data *data = dev_get_drvdata(dev);
int pwm_auto_reg = ADT7470_REG_PWM_AUTO_TEMP(attr->index);
+ unsigned int mask, val;
long temp;
- u8 reg;
+ int err;
if (kstrtol(buf, 10, &temp))
return -EINVAL;
@@ -928,274 +1010,57 @@ static ssize_t set_pwm_auto_temp(struct device *dev,
mutex_lock(&data->lock);
data->pwm_automatic[attr->index] = temp;
- reg = i2c_smbus_read_byte_data(client, pwm_auto_reg);
if (!(attr->index % 2)) {
- reg &= 0xF;
- reg |= (temp << 4) & 0xF0;
+ mask = 0xF0;
+ val = (temp << 4) & 0xF0;
} else {
- reg &= 0xF0;
- reg |= temp & 0xF;
+ mask = 0x0F;
+ val = temp & 0x0F;
}
- i2c_smbus_write_byte_data(client, pwm_auto_reg, reg);
+ err = regmap_update_bits(data->regmap, pwm_auto_reg, mask, val);
mutex_unlock(&data->lock);
- return count;
+ return err < 0 ? err : count;
}
-static ssize_t show_alarm(struct device *dev,
- struct device_attribute *devattr,
- char *buf)
-{
- struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
- struct adt7470_data *data = adt7470_update_device(dev);
+static DEVICE_ATTR_RW(alarm_mask);
+static DEVICE_ATTR_RW(num_temp_sensors);
+static DEVICE_ATTR_RW(auto_update_interval);
- if (data->alarm & attr->index)
- return sprintf(buf, "1\n");
- else
- return sprintf(buf, "0\n");
-}
+static SENSOR_DEVICE_ATTR_RW(force_pwm_max, force_pwm_max, 0);
+
+static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point1_pwm, pwm_min, 0);
+static SENSOR_DEVICE_ATTR_RW(pwm2_auto_point1_pwm, pwm_min, 1);
+static SENSOR_DEVICE_ATTR_RW(pwm3_auto_point1_pwm, pwm_min, 2);
+static SENSOR_DEVICE_ATTR_RW(pwm4_auto_point1_pwm, pwm_min, 3);
+
+static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point2_pwm, pwm_max, 0);
+static SENSOR_DEVICE_ATTR_RW(pwm2_auto_point2_pwm, pwm_max, 1);
+static SENSOR_DEVICE_ATTR_RW(pwm3_auto_point2_pwm, pwm_max, 2);
+static SENSOR_DEVICE_ATTR_RW(pwm4_auto_point2_pwm, pwm_max, 3);
+
+static SENSOR_DEVICE_ATTR_RW(pwm1_auto_point1_temp, pwm_tmin, 0);
+static SENSOR_DEVICE_ATTR_RW(pwm2_auto_point1_temp, pwm_tmin, 1);
+static SENSOR_DEVICE_ATTR_RW(pwm3_auto_point1_temp, pwm_tmin, 2);
+static SENSOR_DEVICE_ATTR_RW(pwm4_auto_point1_temp, pwm_tmin, 3);
+
+static SENSOR_DEVICE_ATTR_RO(pwm1_auto_point2_temp, pwm_tmax, 0);
+static SENSOR_DEVICE_ATTR_RO(pwm2_auto_point2_temp, pwm_tmax, 1);
+static SENSOR_DEVICE_ATTR_RO(pwm3_auto_point2_temp, pwm_tmax, 2);
+static SENSOR_DEVICE_ATTR_RO(pwm4_auto_point2_temp, pwm_tmax, 3);
-static DEVICE_ATTR(alarm_mask, S_IRUGO, show_alarm_mask, NULL);
-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,
- show_auto_update_interval, set_auto_update_interval);
-
-static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max,
- set_temp_max, 0);
-static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max,
- set_temp_max, 1);
-static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max,
- set_temp_max, 2);
-static SENSOR_DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_temp_max,
- set_temp_max, 3);
-static SENSOR_DEVICE_ATTR(temp5_max, S_IWUSR | S_IRUGO, show_temp_max,
- set_temp_max, 4);
-static SENSOR_DEVICE_ATTR(temp6_max, S_IWUSR | S_IRUGO, show_temp_max,
- set_temp_max, 5);
-static SENSOR_DEVICE_ATTR(temp7_max, S_IWUSR | S_IRUGO, show_temp_max,
- set_temp_max, 6);
-static SENSOR_DEVICE_ATTR(temp8_max, S_IWUSR | S_IRUGO, show_temp_max,
- set_temp_max, 7);
-static SENSOR_DEVICE_ATTR(temp9_max, S_IWUSR | S_IRUGO, show_temp_max,
- set_temp_max, 8);
-static SENSOR_DEVICE_ATTR(temp10_max, S_IWUSR | S_IRUGO, show_temp_max,
- set_temp_max, 9);
-
-static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min,
- set_temp_min, 0);
-static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min,
- set_temp_min, 1);
-static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min,
- set_temp_min, 2);
-static SENSOR_DEVICE_ATTR(temp4_min, S_IWUSR | S_IRUGO, show_temp_min,
- set_temp_min, 3);
-static SENSOR_DEVICE_ATTR(temp5_min, S_IWUSR | S_IRUGO, show_temp_min,
- set_temp_min, 4);
-static SENSOR_DEVICE_ATTR(temp6_min, S_IWUSR | S_IRUGO, show_temp_min,
- set_temp_min, 5);
-static SENSOR_DEVICE_ATTR(temp7_min, S_IWUSR | S_IRUGO, show_temp_min,
- set_temp_min, 6);
-static SENSOR_DEVICE_ATTR(temp8_min, S_IWUSR | S_IRUGO, show_temp_min,
- set_temp_min, 7);
-static SENSOR_DEVICE_ATTR(temp9_min, S_IWUSR | S_IRUGO, show_temp_min,
- set_temp_min, 8);
-static SENSOR_DEVICE_ATTR(temp10_min, S_IWUSR | S_IRUGO, show_temp_min,
- set_temp_min, 9);
-
-static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
-static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
-static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
-static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3);
-static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4);
-static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_temp, NULL, 5);
-static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_temp, NULL, 6);
-static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_temp, NULL, 7);
-static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_temp, NULL, 8);
-static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, show_temp, NULL, 9);
-
-static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL,
- ADT7470_R1T_ALARM);
-static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL,
- ADT7470_R2T_ALARM);
-static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL,
- ADT7470_R3T_ALARM);
-static SENSOR_DEVICE_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL,
- ADT7470_R4T_ALARM);
-static SENSOR_DEVICE_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL,
- ADT7470_R5T_ALARM);
-static SENSOR_DEVICE_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL,
- ADT7470_R6T_ALARM);
-static SENSOR_DEVICE_ATTR(temp7_alarm, S_IRUGO, show_alarm, NULL,
- ADT7470_R7T_ALARM);
-static SENSOR_DEVICE_ATTR(temp8_alarm, S_IRUGO, show_alarm, NULL,
- ALARM2(ADT7470_R8T_ALARM));
-static SENSOR_DEVICE_ATTR(temp9_alarm, S_IRUGO, show_alarm, NULL,
- ALARM2(ADT7470_R9T_ALARM));
-static SENSOR_DEVICE_ATTR(temp10_alarm, S_IRUGO, show_alarm, NULL,
- ALARM2(ADT7470_R10T_ALARM));
-
-static SENSOR_DEVICE_ATTR(fan1_max, S_IWUSR | S_IRUGO, show_fan_max,
- set_fan_max, 0);
-static SENSOR_DEVICE_ATTR(fan2_max, S_IWUSR | S_IRUGO, show_fan_max,
- set_fan_max, 1);
-static SENSOR_DEVICE_ATTR(fan3_max, S_IWUSR | S_IRUGO, show_fan_max,
- set_fan_max, 2);
-static SENSOR_DEVICE_ATTR(fan4_max, S_IWUSR | S_IRUGO, show_fan_max,
- set_fan_max, 3);
-
-static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min,
- set_fan_min, 0);
-static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min,
- set_fan_min, 1);
-static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min,
- set_fan_min, 2);
-static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min,
- set_fan_min, 3);
-
-static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
-static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
-static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
-static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3);
-
-static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL,
- ALARM2(ADT7470_FAN1_ALARM));
-static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL,
- ALARM2(ADT7470_FAN2_ALARM));
-static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL,
- ALARM2(ADT7470_FAN3_ALARM));
-static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL,
- ALARM2(ADT7470_FAN4_ALARM));
-
-static SENSOR_DEVICE_ATTR(force_pwm_max, S_IWUSR | S_IRUGO,
- show_force_pwm_max, set_force_pwm_max, 0);
-
-static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0);
-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 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,
- show_pwm_min, set_pwm_min, 1);
-static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO,
- show_pwm_min, set_pwm_min, 2);
-static SENSOR_DEVICE_ATTR(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO,
- show_pwm_min, set_pwm_min, 3);
-
-static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO,
- show_pwm_max, set_pwm_max, 0);
-static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO,
- show_pwm_max, set_pwm_max, 1);
-static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO,
- show_pwm_max, set_pwm_max, 2);
-static SENSOR_DEVICE_ATTR(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO,
- show_pwm_max, set_pwm_max, 3);
-
-static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO,
- show_pwm_tmin, set_pwm_tmin, 0);
-static SENSOR_DEVICE_ATTR(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO,
- show_pwm_tmin, set_pwm_tmin, 1);
-static SENSOR_DEVICE_ATTR(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO,
- show_pwm_tmin, set_pwm_tmin, 2);
-static SENSOR_DEVICE_ATTR(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO,
- show_pwm_tmin, set_pwm_tmin, 3);
-
-static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp, S_IRUGO, show_pwm_tmax,
- NULL, 0);
-static SENSOR_DEVICE_ATTR(pwm2_auto_point2_temp, S_IRUGO, show_pwm_tmax,
- NULL, 1);
-static SENSOR_DEVICE_ATTR(pwm3_auto_point2_temp, S_IRUGO, show_pwm_tmax,
- NULL, 2);
-static SENSOR_DEVICE_ATTR(pwm4_auto_point2_temp, S_IRUGO, show_pwm_tmax,
- NULL, 3);
-
-static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_auto,
- set_pwm_auto, 0);
-static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_auto,
- set_pwm_auto, 1);
-static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_auto,
- set_pwm_auto, 2);
-static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_auto,
- set_pwm_auto, 3);
-
-static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO,
- show_pwm_auto_temp, set_pwm_auto_temp, 0);
-static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO,
- show_pwm_auto_temp, set_pwm_auto_temp, 1);
-static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO,
- show_pwm_auto_temp, set_pwm_auto_temp, 2);
-static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO,
- show_pwm_auto_temp, set_pwm_auto_temp, 3);
-
-static struct attribute *adt7470_attr[] = {
+static SENSOR_DEVICE_ATTR_RW(pwm1_auto_channels_temp, pwm_auto_temp, 0);
+static SENSOR_DEVICE_ATTR_RW(pwm2_auto_channels_temp, pwm_auto_temp, 1);
+static SENSOR_DEVICE_ATTR_RW(pwm3_auto_channels_temp, pwm_auto_temp, 2);
+static SENSOR_DEVICE_ATTR_RW(pwm4_auto_channels_temp, pwm_auto_temp, 3);
+
+static struct attribute *adt7470_attrs[] = {
&dev_attr_alarm_mask.attr,
&dev_attr_num_temp_sensors.attr,
&dev_attr_auto_update_interval.attr,
- &sensor_dev_attr_temp1_max.dev_attr.attr,
- &sensor_dev_attr_temp2_max.dev_attr.attr,
- &sensor_dev_attr_temp3_max.dev_attr.attr,
- &sensor_dev_attr_temp4_max.dev_attr.attr,
- &sensor_dev_attr_temp5_max.dev_attr.attr,
- &sensor_dev_attr_temp6_max.dev_attr.attr,
- &sensor_dev_attr_temp7_max.dev_attr.attr,
- &sensor_dev_attr_temp8_max.dev_attr.attr,
- &sensor_dev_attr_temp9_max.dev_attr.attr,
- &sensor_dev_attr_temp10_max.dev_attr.attr,
- &sensor_dev_attr_temp1_min.dev_attr.attr,
- &sensor_dev_attr_temp2_min.dev_attr.attr,
- &sensor_dev_attr_temp3_min.dev_attr.attr,
- &sensor_dev_attr_temp4_min.dev_attr.attr,
- &sensor_dev_attr_temp5_min.dev_attr.attr,
- &sensor_dev_attr_temp6_min.dev_attr.attr,
- &sensor_dev_attr_temp7_min.dev_attr.attr,
- &sensor_dev_attr_temp8_min.dev_attr.attr,
- &sensor_dev_attr_temp9_min.dev_attr.attr,
- &sensor_dev_attr_temp10_min.dev_attr.attr,
- &sensor_dev_attr_temp1_input.dev_attr.attr,
- &sensor_dev_attr_temp2_input.dev_attr.attr,
- &sensor_dev_attr_temp3_input.dev_attr.attr,
- &sensor_dev_attr_temp4_input.dev_attr.attr,
- &sensor_dev_attr_temp5_input.dev_attr.attr,
- &sensor_dev_attr_temp6_input.dev_attr.attr,
- &sensor_dev_attr_temp7_input.dev_attr.attr,
- &sensor_dev_attr_temp8_input.dev_attr.attr,
- &sensor_dev_attr_temp9_input.dev_attr.attr,
- &sensor_dev_attr_temp10_input.dev_attr.attr,
- &sensor_dev_attr_temp1_alarm.dev_attr.attr,
- &sensor_dev_attr_temp2_alarm.dev_attr.attr,
- &sensor_dev_attr_temp3_alarm.dev_attr.attr,
- &sensor_dev_attr_temp4_alarm.dev_attr.attr,
- &sensor_dev_attr_temp5_alarm.dev_attr.attr,
- &sensor_dev_attr_temp6_alarm.dev_attr.attr,
- &sensor_dev_attr_temp7_alarm.dev_attr.attr,
- &sensor_dev_attr_temp8_alarm.dev_attr.attr,
- &sensor_dev_attr_temp9_alarm.dev_attr.attr,
- &sensor_dev_attr_temp10_alarm.dev_attr.attr,
- &sensor_dev_attr_fan1_max.dev_attr.attr,
- &sensor_dev_attr_fan2_max.dev_attr.attr,
- &sensor_dev_attr_fan3_max.dev_attr.attr,
- &sensor_dev_attr_fan4_max.dev_attr.attr,
- &sensor_dev_attr_fan1_min.dev_attr.attr,
- &sensor_dev_attr_fan2_min.dev_attr.attr,
- &sensor_dev_attr_fan3_min.dev_attr.attr,
- &sensor_dev_attr_fan4_min.dev_attr.attr,
- &sensor_dev_attr_fan1_input.dev_attr.attr,
- &sensor_dev_attr_fan2_input.dev_attr.attr,
- &sensor_dev_attr_fan3_input.dev_attr.attr,
- &sensor_dev_attr_fan4_input.dev_attr.attr,
- &sensor_dev_attr_fan1_alarm.dev_attr.attr,
- &sensor_dev_attr_fan2_alarm.dev_attr.attr,
- &sensor_dev_attr_fan3_alarm.dev_attr.attr,
- &sensor_dev_attr_fan4_alarm.dev_attr.attr,
&sensor_dev_attr_force_pwm_max.dev_attr.attr,
- &sensor_dev_attr_pwm1.dev_attr.attr,
- &sensor_dev_attr_pwm2.dev_attr.attr,
- &sensor_dev_attr_pwm3.dev_attr.attr,
- &sensor_dev_attr_pwm4.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
@@ -1212,10 +1077,6 @@ static struct attribute *adt7470_attr[] = {
&sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
&sensor_dev_attr_pwm4_auto_point2_temp.dev_attr.attr,
- &sensor_dev_attr_pwm1_enable.dev_attr.attr,
- &sensor_dev_attr_pwm2_enable.dev_attr.attr,
- &sensor_dev_attr_pwm3_enable.dev_attr.attr,
- &sensor_dev_attr_pwm4_enable.dev_attr.attr,
&sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
@@ -1223,6 +1084,131 @@ static struct attribute *adt7470_attr[] = {
NULL
};
+ATTRIBUTE_GROUPS(adt7470);
+
+static int adt7470_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
+ int channel, long *val)
+{
+ switch (type) {
+ case hwmon_temp:
+ return adt7470_temp_read(dev, attr, channel, val);
+ case hwmon_fan:
+ return adt7470_fan_read(dev, attr, channel, val);
+ case hwmon_pwm:
+ return adt7470_pwm_read(dev, attr, channel, val);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int adt7470_write(struct device *dev, enum hwmon_sensor_types type, u32 attr,
+ int channel, long val)
+{
+ switch (type) {
+ case hwmon_temp:
+ return adt7470_temp_write(dev, attr, channel, val);
+ case hwmon_fan:
+ return adt7470_fan_write(dev, attr, channel, val);
+ case hwmon_pwm:
+ return adt7470_pwm_write(dev, attr, channel, val);
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static umode_t adt7470_is_visible(const void *_data, enum hwmon_sensor_types type,
+ u32 attr, int channel)
+{
+ umode_t mode = 0;
+
+ switch (type) {
+ case hwmon_temp:
+ switch (attr) {
+ case hwmon_temp:
+ case hwmon_temp_alarm:
+ mode = 0444;
+ break;
+ case hwmon_temp_min:
+ case hwmon_temp_max:
+ mode = 0644;
+ break;
+ default:
+ break;
+ }
+ break;
+ case hwmon_fan:
+ switch (attr) {
+ case hwmon_fan_input:
+ case hwmon_fan_alarm:
+ mode = 0444;
+ break;
+ case hwmon_fan_min:
+ case hwmon_fan_max:
+ mode = 0644;
+ break;
+ default:
+ break;
+ }
+ break;
+ case hwmon_pwm:
+ switch (attr) {
+ case hwmon_pwm_input:
+ case hwmon_pwm_enable:
+ mode = 0644;
+ break;
+ case hwmon_pwm_freq:
+ if (channel == 0)
+ mode = 0644;
+ else
+ mode = 0;
+ break;
+ default:
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+
+ return mode;
+}
+
+static const struct hwmon_ops adt7470_hwmon_ops = {
+ .is_visible = adt7470_is_visible,
+ .read = adt7470_read,
+ .write = adt7470_write,
+};
+
+static const struct hwmon_channel_info * const adt7470_info[] = {
+ HWMON_CHANNEL_INFO(temp,
+ HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | HWMON_T_ALARM,
+ HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | HWMON_T_ALARM,
+ HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | HWMON_T_ALARM,
+ HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | HWMON_T_ALARM,
+ HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | HWMON_T_ALARM,
+ HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | HWMON_T_ALARM,
+ HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | HWMON_T_ALARM,
+ HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | HWMON_T_ALARM,
+ HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | HWMON_T_ALARM,
+ HWMON_T_INPUT | HWMON_T_MIN | HWMON_T_MAX | HWMON_T_ALARM),
+ HWMON_CHANNEL_INFO(fan,
+ HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_MAX | HWMON_F_DIV | HWMON_F_ALARM,
+ HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_MAX | HWMON_F_DIV | HWMON_F_ALARM,
+ HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_MAX | HWMON_F_DIV | HWMON_F_ALARM,
+ HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_MAX | HWMON_F_DIV | HWMON_F_ALARM),
+ HWMON_CHANNEL_INFO(pwm,
+ HWMON_PWM_INPUT | HWMON_PWM_ENABLE | HWMON_PWM_FREQ,
+ HWMON_PWM_INPUT | HWMON_PWM_ENABLE,
+ HWMON_PWM_INPUT | HWMON_PWM_ENABLE,
+ HWMON_PWM_INPUT | HWMON_PWM_ENABLE),
+ NULL
+};
+
+static const struct hwmon_chip_info adt7470_chip_info = {
+ .ops = &adt7470_hwmon_ops,
+ .info = adt7470_info,
+};
+
/* Return 0 if detection is successful, -ENODEV otherwise */
static int adt7470_detect(struct i2c_client *client,
struct i2c_board_info *info)
@@ -1245,24 +1231,34 @@ static int adt7470_detect(struct i2c_client *client,
if (revision != ADT7470_REVISION)
return -ENODEV;
- strlcpy(info->type, "adt7470", I2C_NAME_SIZE);
+ strscpy(info->type, "adt7470", I2C_NAME_SIZE);
return 0;
}
-static int adt7470_probe(struct i2c_client *client,
- const struct i2c_device_id *id)
+static const struct regmap_config adt7470_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 8,
+ .use_single_read = true,
+ .use_single_write = true,
+};
+
+static int adt7470_probe(struct i2c_client *client)
{
+ struct device *dev = &client->dev;
struct adt7470_data *data;
+ struct device *hwmon_dev;
int err;
- data = devm_kzalloc(&client->dev, sizeof(struct adt7470_data),
- GFP_KERNEL);
+ data = devm_kzalloc(dev, sizeof(struct adt7470_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
data->num_temp_sensors = -1;
data->auto_update_interval = AUTO_UPDATE_INTERVAL;
+ data->regmap = devm_regmap_init_i2c(client, &adt7470_regmap_config);
+ if (IS_ERR(data->regmap))
+ return PTR_ERR(data->regmap);
i2c_set_clientdata(client, data);
mutex_init(&data->lock);
@@ -1270,50 +1266,55 @@ static int adt7470_probe(struct i2c_client *client,
dev_info(&client->dev, "%s chip found\n", client->name);
/* Initialize the ADT7470 chip */
- adt7470_init_client(client);
+ err = regmap_update_bits(data->regmap, ADT7470_REG_CFG,
+ ADT7470_STRT_MASK | ADT7470_TEST_MASK,
+ ADT7470_STRT_MASK | ADT7470_TEST_MASK);
+ if (err < 0)
+ return err;
/* Register sysfs hooks */
- data->attrs.attrs = adt7470_attr;
- err = sysfs_create_group(&client->dev.kobj, &data->attrs);
- if (err)
- return err;
+ hwmon_dev = devm_hwmon_device_register_with_info(dev, client->name, data,
+ &adt7470_chip_info,
+ adt7470_groups);
- data->hwmon_dev = hwmon_device_register(&client->dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- goto exit_remove;
- }
+ 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(data->hwmon_dev));
- if (IS_ERR(data->auto_update)) {
- err = PTR_ERR(data->auto_update);
- goto exit_unregister;
- }
+ dev_name(hwmon_dev));
+ if (IS_ERR(data->auto_update))
+ return PTR_ERR(data->auto_update);
return 0;
-
-exit_unregister:
- hwmon_device_unregister(data->hwmon_dev);
-exit_remove:
- sysfs_remove_group(&client->dev.kobj, &data->attrs);
- return err;
}
-static int adt7470_remove(struct i2c_client *client)
+static void 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);
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &data->attrs);
- return 0;
}
+static const struct i2c_device_id adt7470_id[] = {
+ { "adt7470" },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, adt7470_id);
+
+static struct i2c_driver adt7470_driver = {
+ .class = I2C_CLASS_HWMON,
+ .driver = {
+ .name = "adt7470",
+ },
+ .probe = adt7470_probe,
+ .remove = adt7470_remove,
+ .id_table = adt7470_id,
+ .detect = adt7470_detect,
+ .address_list = normal_i2c,
+};
+
module_i2c_driver(adt7470_driver);
-MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>");
+MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>");
MODULE_DESCRIPTION("ADT7470 driver");
MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-12-25 09:15:10 +0000