Alarm and fault status register on EMC1402, EMC1412, and EMC1422 is reported
in a different register than with other chips. Add support for it.
Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
drivers/hwmon/emc1403.c | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c
index 8e82884..ee63d7b 100644
--- a/drivers/hwmon/emc1403.c
+++ b/drivers/hwmon/emc1403.c
@@ -299,6 +299,39 @@ static const struct attribute_group emc1404_group = {
.attrs = emc1404_attrs,
};
+/*
+ * EMC14x2 uses a different register and different bits to report alarm and
+ * fault status. For simplicity, provide a separate attribute group for this
+ * chip series.
+ * Since we can not re-use the same attribute names, create a separate attribute
+ * array.
+ */
+static struct sensor_device_attribute_2 emc1402_alarms[] = {
+ SENSOR_ATTR_2(temp1_min_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x20),
+ SENSOR_ATTR_2(temp1_max_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x40),
+ SENSOR_ATTR_2(temp1_crit_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x01),
+
+ SENSOR_ATTR_2(temp2_fault, S_IRUGO, show_bit, NULL, 0x02, 0x04),
+ SENSOR_ATTR_2(temp2_min_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x08),
+ SENSOR_ATTR_2(temp2_max_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x10),
+ SENSOR_ATTR_2(temp2_crit_alarm, S_IRUGO, show_bit, NULL, 0x02, 0x02),
+};
+
+static struct attribute *emc1402_alarm_attrs[] = {
+ &emc1402_alarms[0].dev_attr.attr,
+ &emc1402_alarms[1].dev_attr.attr,
+ &emc1402_alarms[2].dev_attr.attr,
+ &emc1402_alarms[3].dev_attr.attr,
+ &emc1402_alarms[4].dev_attr.attr,
+ &emc1402_alarms[5].dev_attr.attr,
+ &emc1402_alarms[6].dev_attr.attr,
+ NULL,
+};
+
+static const struct attribute_group emc1402_alarm_group = {
+ .attrs = emc1402_alarm_attrs,
+};
+
static int emc1403_detect(struct i2c_client *client,
struct i2c_board_info *info)
{
@@ -395,6 +428,9 @@ static int emc1403_probe(struct i2c_client *client,
data->groups[0] = &emc1402_group;
}
+ if (id->driver_data == emc1402)
+ data->groups[1] = &emc1402_alarm_group;
+
hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
client->name, data,
data->groups);
--
1.9.1
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