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path: root/drivers/hwmon/thmc50.c
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Diffstat (limited to 'drivers/hwmon/thmc50.c')
-rw-r--r--drivers/hwmon/thmc50.c68
1 files changed, 48 insertions, 20 deletions
diff --git a/drivers/hwmon/thmc50.c b/drivers/hwmon/thmc50.c
index 9395b52d9b9..04dd7699b3a 100644
--- a/drivers/hwmon/thmc50.c
+++ b/drivers/hwmon/thmc50.c
@@ -46,6 +46,11 @@ I2C_CLIENT_MODULE_PARM(adm1022_temp3, "List of adapter,address pairs "
#define THMC50_REG_COMPANY_ID 0x3E
#define THMC50_REG_DIE_CODE 0x3F
#define THMC50_REG_ANALOG_OUT 0x19
+/*
+ * The mirror status register cannot be used as
+ * reading it does not clear alarms.
+ */
+#define THMC50_REG_INTR 0x41
const static u8 THMC50_REG_TEMP[] = { 0x27, 0x26, 0x20 };
const static u8 THMC50_REG_TEMP_MIN[] = { 0x3A, 0x38, 0x2C };
@@ -56,7 +61,7 @@ const static u8 THMC50_REG_TEMP_MAX[] = { 0x39, 0x37, 0x2B };
/* Each client has this additional data */
struct thmc50_data {
struct i2c_client client;
- struct class_device *class_dev;
+ struct device *hwmon_dev;
struct mutex update_lock;
enum chips type;
@@ -69,6 +74,7 @@ struct thmc50_data {
s8 temp_max[3];
s8 temp_min[3];
u8 analog_out;
+ u8 alarms;
};
static int thmc50_attach_adapter(struct i2c_adapter *adapter);
@@ -180,6 +186,15 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
return count;
}
+static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ int index = to_sensor_dev_attr(attr)->index;
+ struct thmc50_data *data = thmc50_update_device(dev);
+
+ return sprintf(buf, "%u\n", (data->alarms >> index) & 1);
+}
+
#define temp_reg(offset) \
static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp, \
NULL, offset - 1); \
@@ -192,6 +207,12 @@ temp_reg(1);
temp_reg(2);
temp_reg(3);
+static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 0);
+static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
+static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 1);
+static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 7);
+static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 2);
+
static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_analog_out,
set_analog_out, 0);
static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, NULL, 0);
@@ -200,9 +221,12 @@ static struct attribute *thmc50_attributes[] = {
&sensor_dev_attr_temp1_max.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_alarm.dev_attr.attr,
&sensor_dev_attr_temp2_max.dev_attr.attr,
&sensor_dev_attr_temp2_min.dev_attr.attr,
&sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp2_fault.dev_attr.attr,
&sensor_dev_attr_pwm1.dev_attr.attr,
&sensor_dev_attr_pwm1_mode.dev_attr.attr,
NULL
@@ -213,15 +237,17 @@ static const struct attribute_group thmc50_group = {
};
/* for ADM1022 3rd temperature mode */
-static struct attribute *adm1022_attributes[] = {
+static struct attribute *temp3_attributes[] = {
&sensor_dev_attr_temp3_max.dev_attr.attr,
&sensor_dev_attr_temp3_min.dev_attr.attr,
&sensor_dev_attr_temp3_input.dev_attr.attr,
+ &sensor_dev_attr_temp3_alarm.dev_attr.attr,
+ &sensor_dev_attr_temp3_fault.dev_attr.attr,
NULL
};
-static const struct attribute_group adm1022_group = {
- .attrs = adm1022_attributes,
+static const struct attribute_group temp3_group = {
+ .attrs = temp3_attributes,
};
static int thmc50_detect(struct i2c_adapter *adapter, int address, int kind)
@@ -233,7 +259,7 @@ static int thmc50_detect(struct i2c_adapter *adapter, int address, int kind)
struct thmc50_data *data;
struct device *dev;
int err = 0;
- const char *type_name = "";
+ const char *type_name;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
pr_debug("thmc50: detect failed, "
@@ -283,13 +309,9 @@ static int thmc50_detect(struct i2c_adapter *adapter, int address, int kind)
pr_debug("thmc50: Detection of THMC50/ADM1022 failed\n");
goto exit_free;
}
- pr_debug("thmc50: Detected %s (version %x, revision %x)\n",
- type_name, (revision >> 4) - 0xc, revision & 0xf);
data->type = kind;
- if (kind == thmc50)
- type_name = "thmc50";
- else if (kind == adm1022) {
+ if (kind == adm1022) {
int id = i2c_adapter_id(client->adapter);
int i;
@@ -302,7 +324,11 @@ static int thmc50_detect(struct i2c_adapter *adapter, int address, int kind)
data->has_temp3 = 1;
break;
}
+ } else {
+ type_name = "thmc50";
}
+ pr_debug("thmc50: Detected %s (version %x, revision %x)\n",
+ type_name, (revision >> 4) - 0xc, revision & 0xf);
/* Fill in the remaining client fields & put it into the global list */
strlcpy(client->name, type_name, I2C_NAME_SIZE);
@@ -319,23 +345,23 @@ static int thmc50_detect(struct i2c_adapter *adapter, int address, int kind)
goto exit_detach;
/* Register ADM1022 sysfs hooks */
- if (data->type == adm1022)
+ if (data->has_temp3)
if ((err = sysfs_create_group(&client->dev.kobj,
- &adm1022_group)))
+ &temp3_group)))
goto exit_remove_sysfs_thmc50;
/* Register a new directory entry with module sensors */
- data->class_dev = hwmon_device_register(&client->dev);
- if (IS_ERR(data->class_dev)) {
- err = PTR_ERR(data->class_dev);
+ data->hwmon_dev = hwmon_device_register(&client->dev);
+ if (IS_ERR(data->hwmon_dev)) {
+ err = PTR_ERR(data->hwmon_dev);
goto exit_remove_sysfs;
}
return 0;
exit_remove_sysfs:
- if (data->type == adm1022)
- sysfs_remove_group(&client->dev.kobj, &adm1022_group);
+ if (data->has_temp3)
+ sysfs_remove_group(&client->dev.kobj, &temp3_group);
exit_remove_sysfs_thmc50:
sysfs_remove_group(&client->dev.kobj, &thmc50_group);
exit_detach:
@@ -358,10 +384,10 @@ static int thmc50_detach_client(struct i2c_client *client)
struct thmc50_data *data = i2c_get_clientdata(client);
int err;
- hwmon_device_unregister(data->class_dev);
+ hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &thmc50_group);
- if (data->type == adm1022)
- sysfs_remove_group(&client->dev.kobj, &adm1022_group);
+ if (data->has_temp3)
+ sysfs_remove_group(&client->dev.kobj, &temp3_group);
if ((err = i2c_detach_client(client)))
return err;
@@ -414,6 +440,8 @@ static struct thmc50_data *thmc50_update_device(struct device *dev)
}
data->analog_out =
i2c_smbus_read_byte_data(client, THMC50_REG_ANALOG_OUT);
+ data->alarms =
+ i2c_smbus_read_byte_data(client, THMC50_REG_INTR);
data->last_updated = jiffies;
data->valid = 1;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-14 07:56:55 +0000