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-rw-r--r--drivers/hwmon/lm85.c924
1 files changed, 547 insertions, 377 deletions
diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
index 12d446f54f9..b0129a54e1a 100644
--- a/drivers/hwmon/lm85.c
+++ b/drivers/hwmon/lm85.c
@@ -1,27 +1,28 @@
/*
- lm85.c - Part of lm_sensors, Linux kernel modules for hardware
- monitoring
- Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
- Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
- Copyright (c) 2003 Margit Schubert-While <margitsw@t-online.de>
- Copyright (c) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
-
- Chip details at <http://www.national.com/ds/LM/LM85.pdf>
-
- 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., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
+ * lm85.c - Part of lm_sensors, Linux kernel modules for hardware
+ * monitoring
+ * Copyright (c) 1998, 1999 Frodo Looijaard <frodol@dds.nl>
+ * Copyright (c) 2002, 2003 Philip Pokorny <ppokorny@penguincomputing.com>
+ * Copyright (c) 2003 Margit Schubert-While <margitsw@t-online.de>
+ * Copyright (c) 2004 Justin Thiessen <jthiessen@penguincomputing.com>
+ * Copyright (C) 2007--2014 Jean Delvare <jdelvare@suse.de>
+ *
+ * Chip details at <http://www.national.com/ds/LM/LM85.pdf>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
#include <linux/module.h>
#include <linux/init.h>
@@ -37,79 +38,97 @@
/* Addresses to scan */
static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
-/* Insmod parameters */
-I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102);
+enum chips {
+ lm85,
+ adm1027, adt7463, adt7468,
+ emc6d100, emc6d102, emc6d103, emc6d103s
+};
/* The LM85 registers */
-#define LM85_REG_IN(nr) (0x20 + (nr))
-#define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2)
-#define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2)
+#define LM85_REG_IN(nr) (0x20 + (nr))
+#define LM85_REG_IN_MIN(nr) (0x44 + (nr) * 2)
+#define LM85_REG_IN_MAX(nr) (0x45 + (nr) * 2)
-#define LM85_REG_TEMP(nr) (0x25 + (nr))
-#define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2)
-#define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2)
+#define LM85_REG_TEMP(nr) (0x25 + (nr))
+#define LM85_REG_TEMP_MIN(nr) (0x4e + (nr) * 2)
+#define LM85_REG_TEMP_MAX(nr) (0x4f + (nr) * 2)
/* Fan speeds are LSB, MSB (2 bytes) */
-#define LM85_REG_FAN(nr) (0x28 + (nr) * 2)
-#define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2)
+#define LM85_REG_FAN(nr) (0x28 + (nr) * 2)
+#define LM85_REG_FAN_MIN(nr) (0x54 + (nr) * 2)
+
+#define LM85_REG_PWM(nr) (0x30 + (nr))
-#define LM85_REG_PWM(nr) (0x30 + (nr))
+#define LM85_REG_COMPANY 0x3e
+#define LM85_REG_VERSTEP 0x3f
+
+#define ADT7468_REG_CFG5 0x7c
+#define ADT7468_OFF64 (1 << 0)
+#define ADT7468_HFPWM (1 << 1)
+#define IS_ADT7468_OFF64(data) \
+ ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_OFF64))
+#define IS_ADT7468_HFPWM(data) \
+ ((data)->type == adt7468 && !((data)->cfg5 & ADT7468_HFPWM))
-#define LM85_REG_COMPANY 0x3e
-#define LM85_REG_VERSTEP 0x3f
/* These are the recognized values for the above regs */
-#define LM85_COMPANY_NATIONAL 0x01
-#define LM85_COMPANY_ANALOG_DEV 0x41
-#define LM85_COMPANY_SMSC 0x5c
-#define LM85_VERSTEP_VMASK 0xf0
-#define LM85_VERSTEP_GENERIC 0x60
-#define LM85_VERSTEP_LM85C 0x60
-#define LM85_VERSTEP_LM85B 0x62
-#define LM85_VERSTEP_ADM1027 0x60
-#define LM85_VERSTEP_ADT7463 0x62
-#define LM85_VERSTEP_ADT7463C 0x6A
-#define LM85_VERSTEP_EMC6D100_A0 0x60
-#define LM85_VERSTEP_EMC6D100_A1 0x61
-#define LM85_VERSTEP_EMC6D102 0x65
-
-#define LM85_REG_CONFIG 0x40
-
-#define LM85_REG_ALARM1 0x41
-#define LM85_REG_ALARM2 0x42
-
-#define LM85_REG_VID 0x43
+#define LM85_COMPANY_NATIONAL 0x01
+#define LM85_COMPANY_ANALOG_DEV 0x41
+#define LM85_COMPANY_SMSC 0x5c
+#define LM85_VERSTEP_LM85C 0x60
+#define LM85_VERSTEP_LM85B 0x62
+#define LM85_VERSTEP_LM96000_1 0x68
+#define LM85_VERSTEP_LM96000_2 0x69
+#define LM85_VERSTEP_ADM1027 0x60
+#define LM85_VERSTEP_ADT7463 0x62
+#define LM85_VERSTEP_ADT7463C 0x6A
+#define LM85_VERSTEP_ADT7468_1 0x71
+#define LM85_VERSTEP_ADT7468_2 0x72
+#define LM85_VERSTEP_EMC6D100_A0 0x60
+#define LM85_VERSTEP_EMC6D100_A1 0x61
+#define LM85_VERSTEP_EMC6D102 0x65
+#define LM85_VERSTEP_EMC6D103_A0 0x68
+#define LM85_VERSTEP_EMC6D103_A1 0x69
+#define LM85_VERSTEP_EMC6D103S 0x6A /* Also known as EMC6D103:A2 */
+
+#define LM85_REG_CONFIG 0x40
+
+#define LM85_REG_ALARM1 0x41
+#define LM85_REG_ALARM2 0x42
+
+#define LM85_REG_VID 0x43
/* Automated FAN control */
-#define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr))
-#define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr))
-#define LM85_REG_AFAN_SPIKE1 0x62
-#define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr))
-#define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr))
-#define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr))
-#define LM85_REG_AFAN_HYST1 0x6d
-#define LM85_REG_AFAN_HYST2 0x6e
-
-#define ADM1027_REG_EXTEND_ADC1 0x76
-#define ADM1027_REG_EXTEND_ADC2 0x77
+#define LM85_REG_AFAN_CONFIG(nr) (0x5c + (nr))
+#define LM85_REG_AFAN_RANGE(nr) (0x5f + (nr))
+#define LM85_REG_AFAN_SPIKE1 0x62
+#define LM85_REG_AFAN_MINPWM(nr) (0x64 + (nr))
+#define LM85_REG_AFAN_LIMIT(nr) (0x67 + (nr))
+#define LM85_REG_AFAN_CRITICAL(nr) (0x6a + (nr))
+#define LM85_REG_AFAN_HYST1 0x6d
+#define LM85_REG_AFAN_HYST2 0x6e
+
+#define ADM1027_REG_EXTEND_ADC1 0x76
+#define ADM1027_REG_EXTEND_ADC2 0x77
#define EMC6D100_REG_ALARM3 0x7d
/* IN5, IN6 and IN7 */
-#define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5))
-#define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2)
-#define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2)
-#define EMC6D102_REG_EXTEND_ADC1 0x85
-#define EMC6D102_REG_EXTEND_ADC2 0x86
-#define EMC6D102_REG_EXTEND_ADC3 0x87
-#define EMC6D102_REG_EXTEND_ADC4 0x88
-
-
-/* Conversions. Rounding and limit checking is only done on the TO_REG
- variants. Note that you should be a bit careful with which arguments
- these macros are called: arguments may be evaluated more than once.
+#define EMC6D100_REG_IN(nr) (0x70 + ((nr) - 5))
+#define EMC6D100_REG_IN_MIN(nr) (0x73 + ((nr) - 5) * 2)
+#define EMC6D100_REG_IN_MAX(nr) (0x74 + ((nr) - 5) * 2)
+#define EMC6D102_REG_EXTEND_ADC1 0x85
+#define EMC6D102_REG_EXTEND_ADC2 0x86
+#define EMC6D102_REG_EXTEND_ADC3 0x87
+#define EMC6D102_REG_EXTEND_ADC4 0x88
+
+
+/*
+ * Conversions. Rounding and limit checking is only done on the TO_REG
+ * variants. Note that you should be a bit careful with which arguments
+ * these macros are called: arguments may be evaluated more than once.
*/
-/* IN are scaled acording to built-in resistors */
+/* IN are scaled according to built-in resistors */
static const int lm85_scaling[] = { /* .001 Volts */
2500, 2250, 3300, 5000, 12000,
3300, 1500, 1800 /*EMC6D100*/
@@ -117,7 +136,7 @@ static const int lm85_scaling[] = { /* .001 Volts */
#define SCALE(val, from, to) (((val) * (to) + ((from) / 2)) / (from))
#define INS_TO_REG(n, val) \
- SENSORS_LIMIT(SCALE(val, lm85_scaling[n], 192), 0, 255)
+ clamp_val(SCALE(val, lm85_scaling[n], 192), 0, 255)
#define INSEXT_FROM_REG(n, val, ext) \
SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n])
@@ -129,23 +148,24 @@ static inline u16 FAN_TO_REG(unsigned long val)
{
if (!val)
return 0xffff;
- return SENSORS_LIMIT(5400000 / val, 1, 0xfffe);
+ return clamp_val(5400000 / val, 1, 0xfffe);
}
#define FAN_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
5400000 / (val))
/* Temperature is reported in .001 degC increments */
#define TEMP_TO_REG(val) \
- SENSORS_LIMIT(SCALE(val, 1000, 1), -127, 127)
+ clamp_val(SCALE(val, 1000, 1), -127, 127)
#define TEMPEXT_FROM_REG(val, ext) \
SCALE(((val) << 4) + (ext), 16, 1000)
#define TEMP_FROM_REG(val) ((val) * 1000)
-#define PWM_TO_REG(val) SENSORS_LIMIT(val, 0, 255)
+#define PWM_TO_REG(val) clamp_val(val, 0, 255)
#define PWM_FROM_REG(val) (val)
-/* ZONEs have the following parameters:
+/*
+ * ZONEs have the following parameters:
* Limit (low) temp, 1. degC
* Hysteresis (below limit), 1. degC (0-15)
* Range of speed control, .1 degC (2-80)
@@ -173,42 +193,42 @@ static int RANGE_TO_REG(int range)
{
int i;
- if (range >= lm85_range_map[15])
- return 15;
-
/* Find the closest match */
- for (i = 14; i >= 0; --i) {
- if (range >= lm85_range_map[i]) {
- if ((lm85_range_map[i + 1] - range) <
- (range - lm85_range_map[i]))
- return i + 1;
- return i;
- }
+ for (i = 0; i < 15; ++i) {
+ if (range <= (lm85_range_map[i] + lm85_range_map[i + 1]) / 2)
+ break;
}
- return 0;
+ return i;
}
#define RANGE_FROM_REG(val) lm85_range_map[(val) & 0x0f]
/* These are the PWM frequency encodings */
-static const int lm85_freq_map[] = { /* .1 Hz */
- 100, 150, 230, 300, 380, 470, 620, 940
+static const int lm85_freq_map[8] = { /* 1 Hz */
+ 10, 15, 23, 30, 38, 47, 61, 94
+};
+static const int adm1027_freq_map[8] = { /* 1 Hz */
+ 11, 15, 22, 29, 35, 44, 59, 88
};
-static int FREQ_TO_REG(int freq)
+static int FREQ_TO_REG(const int *map, int freq)
{
int i;
- if (freq >= lm85_freq_map[7])
- return 7;
+ /* Find the closest match */
for (i = 0; i < 7; ++i)
- if (freq <= lm85_freq_map[i])
+ if (freq <= (map[i] + map[i + 1]) / 2)
break;
return i;
}
-#define FREQ_FROM_REG(val) lm85_freq_map[(val) & 0x07]
-/* Since we can't use strings, I'm abusing these numbers
+static int FREQ_FROM_REG(const int *map, u8 reg)
+{
+ return map[reg & 0x07];
+}
+
+/*
+ * Since we can't use strings, I'm abusing these numbers
* to stand in for the following meanings:
* 1 -- PWM responds to Zone 1
* 2 -- PWM responds to Zone 2
@@ -235,10 +255,11 @@ static int ZONE_TO_REG(int zone)
return i << 5;
}
-#define HYST_TO_REG(val) SENSORS_LIMIT(((val) + 500) / 1000, 0, 15)
+#define HYST_TO_REG(val) clamp_val(((val) + 500) / 1000, 0, 15)
#define HYST_FROM_REG(val) ((val) * 1000)
-/* Chip sampling rates
+/*
+ * Chip sampling rates
*
* Some sensors are not updated more frequently than once per second
* so it doesn't make sense to read them more often than that.
@@ -254,7 +275,8 @@ static int ZONE_TO_REG(int zone)
#define LM85_DATA_INTERVAL (HZ + HZ / 2)
#define LM85_CONFIG_INTERVAL (1 * 60 * HZ)
-/* LM85 can automatically adjust fan speeds based on temperature
+/*
+ * LM85 can automatically adjust fan speeds based on temperature
* This structure encapsulates an entire Zone config. There are
* three zones (one for each temperature input) on the lm85
*/
@@ -263,11 +285,8 @@ struct lm85_zone {
u8 hyst; /* Low limit hysteresis. (0-15) */
u8 range; /* Temp range, encoded */
s8 critical; /* "All fans ON" temp limit */
- u8 off_desired; /* Actual "off" temperature specified. Preserved
- * to prevent "drift" as other autofan control
- * values change.
- */
- u8 max_desired; /* Actual "max" temperature specified. Preserved
+ u8 max_desired; /*
+ * Actual "max" temperature specified. Preserved
* to prevent "drift" as other autofan control
* values change.
*/
@@ -275,18 +294,21 @@ struct lm85_zone {
struct lm85_autofan {
u8 config; /* Register value */
- u8 freq; /* PWM frequency, encoded */
u8 min_pwm; /* Minimum PWM value, encoded */
u8 min_off; /* Min PWM or OFF below "limit", flag */
};
-/* For each registered chip, we need to keep some data in memory.
- The structure is dynamically allocated. */
+/*
+ * For each registered chip, we need to keep some data in memory.
+ * The structure is dynamically allocated.
+ */
struct lm85_data {
- struct i2c_client client;
struct device *hwmon_dev;
+ const int *freq_map;
enum chips type;
+ bool has_vid5; /* true if VID5 is configured for ADT7463 or ADT7468 */
+
struct mutex update_lock;
int valid; /* !=0 if following fields are valid */
unsigned long last_reading; /* In jiffies */
@@ -301,31 +323,53 @@ struct lm85_data {
u16 fan[4]; /* Register value */
u16 fan_min[4]; /* Register value */
u8 pwm[3]; /* Register value */
+ u8 pwm_freq[3]; /* Register encoding */
u8 temp_ext[3]; /* Decoded values */
u8 in_ext[8]; /* Decoded values */
u8 vid; /* Register value */
u8 vrm; /* VRM version */
u32 alarms; /* Register encoding, combined */
+ u8 cfg5; /* Config Register 5 on ADT7468 */
struct lm85_autofan autofan[3];
struct lm85_zone zone[3];
};
-static int lm85_attach_adapter(struct i2c_adapter *adapter);
-static int lm85_detect(struct i2c_adapter *adapter, int address,
- int kind);
-static int lm85_detach_client(struct i2c_client *client);
+static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info);
+static int lm85_probe(struct i2c_client *client,
+ const struct i2c_device_id *id);
+static int lm85_remove(struct i2c_client *client);
static int lm85_read_value(struct i2c_client *client, u8 reg);
static void lm85_write_value(struct i2c_client *client, u8 reg, int value);
static struct lm85_data *lm85_update_device(struct device *dev);
+static const struct i2c_device_id lm85_id[] = {
+ { "adm1027", adm1027 },
+ { "adt7463", adt7463 },
+ { "adt7468", adt7468 },
+ { "lm85", lm85 },
+ { "lm85b", lm85 },
+ { "lm85c", lm85 },
+ { "emc6d100", emc6d100 },
+ { "emc6d101", emc6d100 },
+ { "emc6d102", emc6d102 },
+ { "emc6d103", emc6d103 },
+ { "emc6d103s", emc6d103s },
+ { }
+};
+MODULE_DEVICE_TABLE(i2c, lm85_id);
+
static struct i2c_driver lm85_driver = {
+ .class = I2C_CLASS_HWMON,
.driver = {
.name = "lm85",
},
- .attach_adapter = lm85_attach_adapter,
- .detach_client = lm85_detach_client,
+ .probe = lm85_probe,
+ .remove = lm85_remove,
+ .id_table = lm85_id,
+ .detect = lm85_detect,
+ .address_list = normal_i2c,
};
@@ -352,7 +396,12 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- unsigned long val = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->fan_min[nr] = FAN_TO_REG(val);
@@ -380,7 +429,7 @@ static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
struct lm85_data *data = lm85_update_device(dev);
int vid;
- if (data->type == adt7463 && (data->vid & 0x80)) {
+ if (data->has_vid5) {
/* 6-pin VID (VRM 10) */
vid = vid_from_reg(data->vid & 0x3f, data->vrm);
} else {
@@ -404,7 +453,14 @@ static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct lm85_data *data = dev_get_drvdata(dev);
- data->vrm = simple_strtoul(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ data->vrm = val;
return count;
}
@@ -461,7 +517,12 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->pwm[nr] = PWM_TO_REG(val);
@@ -498,8 +559,13 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
u8 config;
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
switch (val) {
case 0:
@@ -509,8 +575,10 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
config = 7;
break;
case 2:
- /* Here we have to choose arbitrarily one of the 5 possible
- configurations; I go for the safest */
+ /*
+ * Here we have to choose arbitrarily one of the 5 possible
+ * configurations; I go for the safest
+ */
config = 6;
break;
default:
@@ -528,11 +596,64 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
return count;
}
+static ssize_t show_pwm_freq(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int nr = to_sensor_dev_attr(attr)->index;
+ struct lm85_data *data = lm85_update_device(dev);
+ int freq;
+
+ if (IS_ADT7468_HFPWM(data))
+ freq = 22500;
+ else
+ freq = FREQ_FROM_REG(data->freq_map, data->pwm_freq[nr]);
+
+ return sprintf(buf, "%d\n", freq);
+}
+
+static ssize_t set_pwm_freq(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t count)
+{
+ int nr = to_sensor_dev_attr(attr)->index;
+ struct i2c_client *client = to_i2c_client(dev);
+ struct lm85_data *data = i2c_get_clientdata(client);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
+
+ mutex_lock(&data->update_lock);
+ /*
+ * The ADT7468 has a special high-frequency PWM output mode,
+ * where all PWM outputs are driven by a 22.5 kHz clock.
+ * This might confuse the user, but there's not much we can do.
+ */
+ if (data->type == adt7468 && val >= 11300) { /* High freq. mode */
+ data->cfg5 &= ~ADT7468_HFPWM;
+ lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5);
+ } else { /* Low freq. mode */
+ data->pwm_freq[nr] = FREQ_TO_REG(data->freq_map, val);
+ lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
+ (data->zone[nr].range << 4)
+ | data->pwm_freq[nr]);
+ if (data->type == adt7468) {
+ data->cfg5 |= ADT7468_HFPWM;
+ lm85_write_value(client, ADT7468_REG_CFG5, data->cfg5);
+ }
+ }
+ mutex_unlock(&data->update_lock);
+ return count;
+}
+
#define show_pwm_reg(offset) \
static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR, \
show_pwm, set_pwm, offset - 1); \
static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO | S_IWUSR, \
- show_pwm_enable, set_pwm_enable, offset - 1)
+ show_pwm_enable, set_pwm_enable, offset - 1); \
+static SENSOR_DEVICE_ATTR(pwm##offset##_freq, S_IRUGO | S_IWUSR, \
+ show_pwm_freq, set_pwm_freq, offset - 1)
show_pwm_reg(1);
show_pwm_reg(2);
@@ -563,7 +684,12 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->in_min[nr] = INS_TO_REG(nr, val);
@@ -586,7 +712,12 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->in_max[nr] = INS_TO_REG(nr, val);
@@ -637,7 +768,15 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
+
+ if (IS_ADT7468_OFF64(data))
+ val += 64;
mutex_lock(&data->update_lock);
data->temp_min[nr] = TEMP_TO_REG(val);
@@ -660,7 +799,15 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
+
+ if (IS_ADT7468_OFF64(data))
+ val += 64;
mutex_lock(&data->update_lock);
data->temp_max[nr] = TEMP_TO_REG(val);
@@ -698,7 +845,12 @@ static ssize_t set_pwm_auto_channels(struct device *dev,
int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
@@ -723,7 +875,12 @@ static ssize_t set_pwm_auto_pwm_min(struct device *dev,
int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
+ unsigned long val;
+ int err;
+
+ err = kstrtoul(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->autofan[nr].min_pwm = PWM_TO_REG(val);
@@ -747,8 +904,13 @@ static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
u8 tmp;
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->autofan[nr].min_off = val;
@@ -761,31 +923,6 @@ static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
return count;
}
-static ssize_t show_pwm_auto_pwm_freq(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- int nr = to_sensor_dev_attr(attr)->index;
- struct lm85_data *data = lm85_update_device(dev);
- return sprintf(buf, "%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
-}
-
-static ssize_t set_pwm_auto_pwm_freq(struct device *dev,
- struct device_attribute *attr, const char *buf, size_t count)
-{
- int nr = to_sensor_dev_attr(attr)->index;
- struct i2c_client *client = to_i2c_client(dev);
- struct lm85_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
-
- mutex_lock(&data->update_lock);
- data->autofan[nr].freq = FREQ_TO_REG(val);
- lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
- (data->zone[nr].range << 4)
- | data->autofan[nr].freq);
- mutex_unlock(&data->update_lock);
- return count;
-}
-
#define pwm_auto(offset) \
static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels, \
S_IRUGO | S_IWUSR, show_pwm_auto_channels, \
@@ -795,10 +932,7 @@ static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min, \
set_pwm_auto_pwm_min, offset - 1); \
static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, \
S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl, \
- set_pwm_auto_pwm_minctl, offset - 1); \
-static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_freq, \
- S_IRUGO | S_IWUSR, show_pwm_auto_pwm_freq, \
- set_pwm_auto_pwm_freq, offset - 1);
+ set_pwm_auto_pwm_minctl, offset - 1)
pwm_auto(1);
pwm_auto(2);
@@ -822,11 +956,15 @@ static ssize_t set_temp_auto_temp_off(struct device *dev,
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
int min;
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
min = TEMP_FROM_REG(data->zone[nr].limit);
- data->zone[nr].off_desired = TEMP_TO_REG(val);
data->zone[nr].hyst = HYST_TO_REG(min - val);
if (nr == 0 || nr == 1) {
lm85_write_value(client, LM85_REG_AFAN_HYST1,
@@ -854,7 +992,12 @@ static ssize_t set_temp_auto_temp_min(struct device *dev,
int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->zone[nr].limit = TEMP_TO_REG(val);
@@ -867,20 +1010,8 @@ static ssize_t set_temp_auto_temp_min(struct device *dev,
TEMP_FROM_REG(data->zone[nr].limit));
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
((data->zone[nr].range & 0x0f) << 4)
- | (data->autofan[nr].freq & 0x07));
+ | (data->pwm_freq[nr] & 0x07));
-/* Update temp_auto_hyst and temp_auto_off */
- data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
- data->zone[nr].limit) - TEMP_FROM_REG(
- data->zone[nr].off_desired));
- if (nr == 0 || nr == 1) {
- lm85_write_value(client, LM85_REG_AFAN_HYST1,
- (data->zone[0].hyst << 4)
- | data->zone[1].hyst);
- } else {
- lm85_write_value(client, LM85_REG_AFAN_HYST2,
- (data->zone[2].hyst << 4));
- }
mutex_unlock(&data->update_lock);
return count;
}
@@ -901,7 +1032,12 @@ static ssize_t set_temp_auto_temp_max(struct device *dev,
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
int min;
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
min = TEMP_FROM_REG(data->zone[nr].limit);
@@ -910,7 +1046,7 @@ static ssize_t set_temp_auto_temp_max(struct device *dev,
val - min);
lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
((data->zone[nr].range & 0x0f) << 4)
- | (data->autofan[nr].freq & 0x07));
+ | (data->pwm_freq[nr] & 0x07));
mutex_unlock(&data->update_lock);
return count;
}
@@ -929,7 +1065,12 @@ static ssize_t set_temp_auto_temp_crit(struct device *dev,
int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct lm85_data *data = i2c_get_clientdata(client);
- long val = simple_strtol(buf, NULL, 10);
+ long val;
+ int err;
+
+ err = kstrtol(buf, 10, &val);
+ if (err)
+ return err;
mutex_lock(&data->update_lock);
data->zone[nr].critical = TEMP_TO_REG(val);
@@ -957,13 +1098,6 @@ temp_auto(1);
temp_auto(2);
temp_auto(3);
-static int lm85_attach_adapter(struct i2c_adapter *adapter)
-{
- if (!(adapter->class & I2C_CLASS_HWMON))
- return 0;
- return i2c_probe(adapter, &addr_data, lm85_detect);
-}
-
static struct attribute *lm85_attributes[] = {
&sensor_dev_attr_fan1_input.dev_attr.attr,
&sensor_dev_attr_fan2_input.dev_attr.attr,
@@ -984,6 +1118,9 @@ static struct attribute *lm85_attributes[] = {
&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_pwm1_freq.dev_attr.attr,
+ &sensor_dev_attr_pwm2_freq.dev_attr.attr,
+ &sensor_dev_attr_pwm3_freq.dev_attr.attr,
&sensor_dev_attr_in0_input.dev_attr.attr,
&sensor_dev_attr_in1_input.dev_attr.attr,
@@ -1023,16 +1160,7 @@ static struct attribute *lm85_attributes[] = {
&sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
&sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
&sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
- &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
- &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
- &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
- &sensor_dev_attr_pwm1_auto_pwm_freq.dev_attr.attr,
- &sensor_dev_attr_pwm2_auto_pwm_freq.dev_attr.attr,
- &sensor_dev_attr_pwm3_auto_pwm_freq.dev_attr.attr,
- &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
- &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
- &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
&sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr,
&sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr,
&sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr,
@@ -1053,6 +1181,28 @@ static const struct attribute_group lm85_group = {
.attrs = lm85_attributes,
};
+static struct attribute *lm85_attributes_minctl[] = {
+ &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group lm85_group_minctl = {
+ .attrs = lm85_attributes_minctl,
+};
+
+static struct attribute *lm85_attributes_temp_off[] = {
+ &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
+ &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
+ &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group lm85_group_temp_off = {
+ .attrs = lm85_attributes_temp_off,
+};
+
static struct attribute *lm85_attributes_in4[] = {
&sensor_dev_attr_in4_input.dev_attr.attr,
&sensor_dev_attr_in4_min.dev_attr.attr,
@@ -1103,141 +1253,149 @@ static void lm85_init_client(struct i2c_client *client)
dev_warn(&client->dev, "Device is not ready\n");
}
-static int lm85_detect(struct i2c_adapter *adapter, int address,
- int kind)
+static int lm85_is_fake(struct i2c_client *client)
+{
+ /*
+ * Differenciate between real LM96000 and Winbond WPCD377I. The latter
+ * emulate the former except that it has no hardware monitoring function
+ * so the readings are always 0.
+ */
+ int i;
+ u8 in_temp, fan;
+
+ for (i = 0; i < 8; i++) {
+ in_temp = i2c_smbus_read_byte_data(client, 0x20 + i);
+ fan = i2c_smbus_read_byte_data(client, 0x28 + i);
+ if (in_temp != 0x00 || fan != 0xff)
+ return 0;
+ }
+
+ return 1;
+}
+
+/* Return 0 if detection is successful, -ENODEV otherwise */
+static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info)
{
+ struct i2c_adapter *adapter = client->adapter;
+ int address = client->addr;
+ const char *type_name = NULL;
int company, verstep;
- struct i2c_client *client;
- struct lm85_data *data;
- int err = 0;
- const char *type_name;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
/* We need to be able to do byte I/O */
- goto ERROR0;
+ return -ENODEV;
}
- /* OK. For now, we presume we have a valid client. We now create the
- client structure, even though we cannot fill it completely yet.
- But it allows us to access lm85_{read,write}_value. */
+ /* Determine the chip type */
+ company = lm85_read_value(client, LM85_REG_COMPANY);
+ verstep = lm85_read_value(client, LM85_REG_VERSTEP);
- if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
- err = -ENOMEM;
- goto ERROR0;
+ dev_dbg(&adapter->dev,
+ "Detecting device at 0x%02x with COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
+ address, company, verstep);
+
+ if (company == LM85_COMPANY_NATIONAL) {
+ switch (verstep) {
+ case LM85_VERSTEP_LM85C:
+ type_name = "lm85c";
+ break;
+ case LM85_VERSTEP_LM85B:
+ type_name = "lm85b";
+ break;
+ case LM85_VERSTEP_LM96000_1:
+ case LM85_VERSTEP_LM96000_2:
+ /* Check for Winbond WPCD377I */
+ if (lm85_is_fake(client)) {
+ dev_dbg(&adapter->dev,
+ "Found Winbond WPCD377I, ignoring\n");
+ return -ENODEV;
+ }
+ type_name = "lm85";
+ break;
+ }
+ } else if (company == LM85_COMPANY_ANALOG_DEV) {
+ switch (verstep) {
+ case LM85_VERSTEP_ADM1027:
+ type_name = "adm1027";
+ break;
+ case LM85_VERSTEP_ADT7463:
+ case LM85_VERSTEP_ADT7463C:
+ type_name = "adt7463";
+ break;
+ case LM85_VERSTEP_ADT7468_1:
+ case LM85_VERSTEP_ADT7468_2:
+ type_name = "adt7468";
+ break;
+ }
+ } else if (company == LM85_COMPANY_SMSC) {
+ switch (verstep) {
+ case LM85_VERSTEP_EMC6D100_A0:
+ case LM85_VERSTEP_EMC6D100_A1:
+ /* Note: we can't tell a '100 from a '101 */
+ type_name = "emc6d100";
+ break;
+ case LM85_VERSTEP_EMC6D102:
+ type_name = "emc6d102";
+ break;
+ case LM85_VERSTEP_EMC6D103_A0:
+ case LM85_VERSTEP_EMC6D103_A1:
+ type_name = "emc6d103";
+ break;
+ case LM85_VERSTEP_EMC6D103S:
+ type_name = "emc6d103s";
+ break;
+ }
}
- client = &data->client;
- i2c_set_clientdata(client, data);
- client->addr = address;
- client->adapter = adapter;
- client->driver = &lm85_driver;
+ if (!type_name)
+ return -ENODEV;
- /* Now, we do the remaining detection. */
+ strlcpy(info->type, type_name, I2C_NAME_SIZE);
- company = lm85_read_value(client, LM85_REG_COMPANY);
- verstep = lm85_read_value(client, LM85_REG_VERSTEP);
+ return 0;
+}
- dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
- " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
- i2c_adapter_id(client->adapter), client->addr,
- company, verstep);
-
- /* If auto-detecting, Determine the chip type. */
- if (kind <= 0) {
- dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
- i2c_adapter_id(adapter), address);
- if (company == LM85_COMPANY_NATIONAL
- && verstep == LM85_VERSTEP_LM85C) {
- kind = lm85c;
- } else if (company == LM85_COMPANY_NATIONAL
- && verstep == LM85_VERSTEP_LM85B) {
- kind = lm85b;
- } else if (company == LM85_COMPANY_NATIONAL
- && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
- dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
- " Defaulting to LM85.\n", verstep);
- kind = any_chip;
- } else if (company == LM85_COMPANY_ANALOG_DEV
- && verstep == LM85_VERSTEP_ADM1027) {
- kind = adm1027;
- } else if (company == LM85_COMPANY_ANALOG_DEV
- && (verstep == LM85_VERSTEP_ADT7463
- || verstep == LM85_VERSTEP_ADT7463C)) {
- kind = adt7463;
- } else if (company == LM85_COMPANY_ANALOG_DEV
- && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
- dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
- " Defaulting to Generic LM85.\n", verstep);
- kind = any_chip;
- } else if (company == LM85_COMPANY_SMSC
- && (verstep == LM85_VERSTEP_EMC6D100_A0
- || verstep == LM85_VERSTEP_EMC6D100_A1)) {
- /* Unfortunately, we can't tell a '100 from a '101
- * from the registers. Since a '101 is a '100
- * in a package with fewer pins and therefore no
- * 3.3V, 1.5V or 1.8V inputs, perhaps if those
- * inputs read 0, then it's a '101.
- */
- kind = emc6d100;
- } else if (company == LM85_COMPANY_SMSC
- && verstep == LM85_VERSTEP_EMC6D102) {
- kind = emc6d102;
- } else if (company == LM85_COMPANY_SMSC
- && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
- dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
- dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
- " Defaulting to Generic LM85.\n", verstep);
- kind = any_chip;
- } else if (kind == any_chip
- && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
- dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
- /* Leave kind as "any_chip" */
- } else {
- dev_dbg(&adapter->dev, "Autodetection failed\n");
- /* Not an LM85... */
- if (kind == any_chip) { /* User used force=x,y */
- dev_err(&adapter->dev, "Generic LM85 Version 6 not"
- " found at %d,0x%02x. Try force_lm85c.\n",
- i2c_adapter_id(adapter), address);
- }
- err = 0;
- goto ERROR1;
- }
+static void lm85_remove_files(struct i2c_client *client, struct lm85_data *data)
+{
+ sysfs_remove_group(&client->dev.kobj, &lm85_group);
+ if (data->type != emc6d103s) {
+ sysfs_remove_group(&client->dev.kobj, &lm85_group_minctl);
+ sysfs_remove_group(&client->dev.kobj, &lm85_group_temp_off);
}
+ if (!data->has_vid5)
+ sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
+ if (data->type == emc6d100)
+ sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
+}
+
+static int lm85_probe(struct i2c_client *client,
+ const struct i2c_device_id *id)
+{
+ struct lm85_data *data;
+ int err;
+
+ data = devm_kzalloc(&client->dev, sizeof(struct lm85_data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ i2c_set_clientdata(client, data);
+ data->type = id->driver_data;
+ mutex_init(&data->update_lock);
/* Fill in the chip specific driver values */
- switch (kind) {
- case lm85b:
- type_name = "lm85b";
- break;
- case lm85c:
- type_name = "lm85c";
- break;
+ switch (data->type) {
case adm1027:
- type_name = "adm1027";
- break;
case adt7463:
- type_name = "adt7463";
- break;
+ case adt7468:
case emc6d100:
- type_name = "emc6d100";
- break;
case emc6d102:
- type_name = "emc6d102";
+ case emc6d103:
+ case emc6d103s:
+ data->freq_map = adm1027_freq_map;
break;
default:
- type_name = "lm85";
+ data->freq_map = lm85_freq_map;
}
- strlcpy(client->name, type_name, I2C_NAME_SIZE);
-
- /* Fill in the remaining client fields */
- data->type = kind;
- mutex_init(&data->update_lock);
-
- /* Tell the I2C layer a new client has arrived */
- err = i2c_attach_client(client);
- if (err)
- goto ERROR1;
/* Set the VRM version */
data->vrm = vid_which_vrm();
@@ -1248,54 +1406,61 @@ static int lm85_detect(struct i2c_adapter *adapter, int address,
/* Register sysfs hooks */
err = sysfs_create_group(&client->dev.kobj, &lm85_group);
if (err)
- goto ERROR2;
+ return err;
+
+ /* minctl and temp_off exist on all chips except emc6d103s */
+ if (data->type != emc6d103s) {
+ err = sysfs_create_group(&client->dev.kobj, &lm85_group_minctl);
+ if (err)
+ goto err_remove_files;
+ err = sysfs_create_group(&client->dev.kobj,
+ &lm85_group_temp_off);
+ if (err)
+ goto err_remove_files;
+ }
+
+ /*
+ * The ADT7463/68 have an optional VRM 10 mode where pin 21 is used
+ * as a sixth digital VID input rather than an analog input.
+ */
+ if (data->type == adt7463 || data->type == adt7468) {
+ u8 vid = lm85_read_value(client, LM85_REG_VID);
+ if (vid & 0x80)
+ data->has_vid5 = true;
+ }
- /* The ADT7463 has an optional VRM 10 mode where pin 21 is used
- as a sixth digital VID input rather than an analog input. */
- data->vid = lm85_read_value(client, LM85_REG_VID);
- if (!(kind == adt7463 && (data->vid & 0x80)))
- if ((err = sysfs_create_group(&client->dev.kobj,
- &lm85_group_in4)))
- goto ERROR3;
+ if (!data->has_vid5) {
+ err = sysfs_create_group(&client->dev.kobj, &lm85_group_in4);
+ if (err)
+ goto err_remove_files;
+ }
/* The EMC6D100 has 3 additional voltage inputs */
- if (kind == emc6d100)
- if ((err = sysfs_create_group(&client->dev.kobj,
- &lm85_group_in567)))
- goto ERROR3;
+ if (data->type == emc6d100) {
+ err = sysfs_create_group(&client->dev.kobj, &lm85_group_in567);
+ if (err)
+ goto err_remove_files;
+ }
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
- goto ERROR3;
+ goto err_remove_files;
}
return 0;
/* Error out and cleanup code */
- ERROR3:
- sysfs_remove_group(&client->dev.kobj, &lm85_group);
- sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
- if (kind == emc6d100)
- sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
- ERROR2:
- i2c_detach_client(client);
- ERROR1:
- kfree(data);
- ERROR0:
+ err_remove_files:
+ lm85_remove_files(client, data);
return err;
}
-static int lm85_detach_client(struct i2c_client *client)
+static int lm85_remove(struct i2c_client *client)
{
struct lm85_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &lm85_group);
- sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
- if (data->type == emc6d100)
- sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
- i2c_detach_client(client);
- kfree(data);
+ lm85_remove_files(client, data);
return 0;
}
@@ -1360,12 +1525,14 @@ static struct lm85_data *lm85_update_device(struct device *dev)
/* Things that change quickly */
dev_dbg(&client->dev, "Reading sensor values\n");
- /* Have to read extended bits first to "freeze" the
+ /*
+ * Have to read extended bits first to "freeze" the
* more significant bits that are read later.
* There are 2 additional resolution bits per channel and we
* have room for 4, so we shift them to the left.
*/
- if (data->type == adm1027 || data->type == adt7463) {
+ if (data->type == adm1027 || data->type == adt7463 ||
+ data->type == adt7468) {
int ext1 = lm85_read_value(client,
ADM1027_REG_EXTEND_ADC1);
int ext2 = lm85_read_value(client,
@@ -1390,16 +1557,20 @@ static struct lm85_data *lm85_update_device(struct device *dev)
lm85_read_value(client, LM85_REG_FAN(i));
}
- if (!(data->type == adt7463 && (data->vid & 0x80))) {
- data->in[4] = lm85_read_value(client,
- LM85_REG_IN(4));
- }
+ if (!data->has_vid5)
+ data->in[4] = lm85_read_value(client, LM85_REG_IN(4));
+
+ if (data->type == adt7468)
+ data->cfg5 = lm85_read_value(client, ADT7468_REG_CFG5);
for (i = 0; i <= 2; ++i) {
data->temp[i] =
lm85_read_value(client, LM85_REG_TEMP(i));
data->pwm[i] =
lm85_read_value(client, LM85_REG_PWM(i));
+
+ if (IS_ADT7468_OFF64(data))
+ data->temp[i] -= 64;
}
data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
@@ -1413,10 +1584,12 @@ static struct lm85_data *lm85_update_device(struct device *dev)
/* More alarm bits */
data->alarms |= lm85_read_value(client,
EMC6D100_REG_ALARM3) << 16;
- } else if (data->type == emc6d102) {
- /* Have to read LSB bits after the MSB ones because
- the reading of the MSB bits has frozen the
- LSBs (backward from the ADM1027).
+ } else if (data->type == emc6d102 || data->type == emc6d103 ||
+ data->type == emc6d103s) {
+ /*
+ * Have to read LSB bits after the MSB ones because
+ * the reading of the MSB bits has frozen the
+ * LSBs (backward from the ADM1027).
*/
int ext1 = lm85_read_value(client,
EMC6D102_REG_EXTEND_ADC1);
@@ -1454,7 +1627,7 @@ static struct lm85_data *lm85_update_device(struct device *dev)
lm85_read_value(client, LM85_REG_FAN_MIN(i));
}
- if (!(data->type == adt7463 && (data->vid & 0x80))) {
+ if (!data->has_vid5) {
data->in_min[4] = lm85_read_value(client,
LM85_REG_IN_MIN(4));
data->in_max[4] = lm85_read_value(client,
@@ -1481,7 +1654,7 @@ static struct lm85_data *lm85_update_device(struct device *dev)
data->autofan[i].config =
lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
- data->autofan[i].freq = val & 0x07;
+ data->pwm_freq[i] = val & 0x07;
data->zone[i].range = val >> 4;
data->autofan[i].min_pwm =
lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
@@ -1489,19 +1662,28 @@ static struct lm85_data *lm85_update_device(struct device *dev)
lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
data->zone[i].critical =
lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
+
+ if (IS_ADT7468_OFF64(data)) {
+ data->temp_min[i] -= 64;
+ data->temp_max[i] -= 64;
+ data->zone[i].limit -= 64;
+ data->zone[i].critical -= 64;
+ }
}
- i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
- data->autofan[0].min_off = (i & 0x20) != 0;
- data->autofan[1].min_off = (i & 0x40) != 0;
- data->autofan[2].min_off = (i & 0x80) != 0;
+ if (data->type != emc6d103s) {
+ i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
+ data->autofan[0].min_off = (i & 0x20) != 0;
+ data->autofan[1].min_off = (i & 0x40) != 0;
+ data->autofan[2].min_off = (i & 0x80) != 0;
- i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
- data->zone[0].hyst = i >> 4;
- data->zone[1].hyst = i & 0x0f;
+ i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
+ data->zone[0].hyst = i >> 4;
+ data->zone[1].hyst = i & 0x0f;
- i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
- data->zone[2].hyst = i >> 4;
+ i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
+ data->zone[2].hyst = i >> 4;
+ }
data->last_config = jiffies;
} /* last_config */
@@ -1513,22 +1695,10 @@ static struct lm85_data *lm85_update_device(struct device *dev)
return data;
}
-
-static int __init sm_lm85_init(void)
-{
- return i2c_add_driver(&lm85_driver);
-}
-
-static void __exit sm_lm85_exit(void)
-{
- i2c_del_driver(&lm85_driver);
-}
+module_i2c_driver(lm85_driver);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, "
"Margit Schubert-While <margitsw@t-online.de>, "
"Justin Thiessen <jthiessen@penguincomputing.com>");
MODULE_DESCRIPTION("LM85-B, LM85-C driver");
-
-module_init(sm_lm85_init);
-module_exit(sm_lm85_exit);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-06 21:56:40 +0000