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path: root/drivers/hwmon/lm85.c
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Diffstat (limited to 'drivers/hwmon/lm85.c')
-rw-r--r--drivers/hwmon/lm85.c136
1 files changed, 75 insertions, 61 deletions
diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
index d2cc2866081..cf47e6e476e 100644
--- a/drivers/hwmon/lm85.c
+++ b/drivers/hwmon/lm85.c
@@ -41,7 +41,7 @@ static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
enum chips {
any_chip, lm85b, lm85c,
adm1027, adt7463, adt7468,
- emc6d100, emc6d102, emc6d103
+ emc6d100, emc6d102, emc6d103, emc6d103s
};
/* The LM85 registers */
@@ -283,10 +283,6 @@ 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
* to prevent "drift" as other autofan control
* values change.
@@ -306,6 +302,8 @@ struct lm85_data {
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 */
@@ -352,6 +350,7 @@ static const struct i2c_device_id lm85_id[] = {
{ "emc6d101", emc6d100 },
{ "emc6d102", emc6d102 },
{ "emc6d103", emc6d103 },
+ { "emc6d103s", emc6d103s },
{ }
};
MODULE_DEVICE_TABLE(i2c, lm85_id);
@@ -420,8 +419,7 @@ 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->type == adt7468) &&
- (data->vid & 0x80)) {
+ if (data->has_vid5) {
/* 6-pin VID (VRM 10) */
vid = vid_from_reg(data->vid & 0x3f, data->vrm);
} else {
@@ -891,7 +889,6 @@ static ssize_t set_temp_auto_temp_off(struct device *dev,
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,
@@ -934,18 +931,6 @@ static ssize_t set_temp_auto_temp_min(struct device *dev,
((data->zone[nr].range & 0x0f) << 4)
| (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;
}
@@ -1084,13 +1069,7 @@ 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_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,
@@ -1111,6 +1090,26 @@ 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,
+};
+
+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,
+};
+
+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,
@@ -1258,16 +1257,9 @@ static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info)
case LM85_VERSTEP_EMC6D103_A1:
type_name = "emc6d103";
break;
- /*
- * Registers apparently missing in EMC6D103S/EMC6D103:A2
- * compared to EMC6D103:A0, EMC6D103:A1, and EMC6D102
- * (according to the data sheets), but used unconditionally
- * in the driver: 62[5:7], 6D[0:7], and 6E[0:7].
- * So skip EMC6D103S for now.
case LM85_VERSTEP_EMC6D103S:
type_name = "emc6d103s";
break;
- */
}
} else {
dev_dbg(&adapter->dev,
@@ -1280,6 +1272,19 @@ static int lm85_detect(struct i2c_client *client, struct i2c_board_info *info)
return 0;
}
+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)
{
@@ -1302,6 +1307,7 @@ static int lm85_probe(struct i2c_client *client,
case emc6d100:
case emc6d102:
case emc6d103:
+ case emc6d103s:
data->freq_map = adm1027_freq_map;
break;
default:
@@ -1319,11 +1325,26 @@ static int lm85_probe(struct i2c_client *client,
if (err)
goto err_kfree;
+ /* 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_kfree;
+ err = sysfs_create_group(&client->dev.kobj,
+ &lm85_group_temp_off);
+ if (err)
+ goto err_kfree;
+ }
+
/* 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. */
- data->vid = lm85_read_value(client, LM85_REG_VID);
- if (!((data->type == adt7463 || data->type == adt7468) &&
- (data->vid & 0x80)))
+ if (data->type == adt7463 || data->type == adt7468) {
+ u8 vid = lm85_read_value(client, LM85_REG_VID);
+ if (vid & 0x80)
+ data->has_vid5 = true;
+ }
+
+ if (!data->has_vid5)
if ((err = sysfs_create_group(&client->dev.kobj,
&lm85_group_in4)))
goto err_remove_files;
@@ -1344,10 +1365,7 @@ static int lm85_probe(struct i2c_client *client,
/* Error out and cleanup code */
err_remove_files:
- 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);
+ lm85_remove_files(client, data);
err_kfree:
kfree(data);
return err;
@@ -1357,10 +1375,7 @@ 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);
+ lm85_remove_files(client, data);
kfree(data);
return 0;
}
@@ -1457,11 +1472,8 @@ static struct lm85_data *lm85_update_device(struct device *dev)
lm85_read_value(client, LM85_REG_FAN(i));
}
- if (!((data->type == adt7463 || data->type == adt7468) &&
- (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);
@@ -1487,7 +1499,8 @@ 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 || data->type == emc6d103) {
+ } 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).
@@ -1528,8 +1541,7 @@ static struct lm85_data *lm85_update_device(struct device *dev)
lm85_read_value(client, LM85_REG_FAN_MIN(i));
}
- if (!((data->type == adt7463 || data->type == adt7468) &&
- (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,
@@ -1573,17 +1585,19 @@ static struct lm85_data *lm85_update_device(struct device *dev)
}
}
- 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 */
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-16 12:43:06 +0000