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| author | Guenter Roeck <linux@roeck-us.net> | 2014-05-12 20:03:47 +0200 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2014-05-22 01:02:24 +0200 |
| commit | 03f49f641ab70b2ceea674e666f5b933e3bc5d27 (patch) | |
| tree | 30d0b6bf539480839590394699f2d525ee5f7cf2 | |
| parent | hwmon: (emc1403) Report external diode fault status (diff) | |
| download | linux-03f49f641ab70b2ceea674e666f5b933e3bc5d27.tar.xz linux-03f49f641ab70b2ceea674e666f5b933e3bc5d27.zip | |
hwmon: (emc1403) Add support for alarm and diode fault status on EMC14x2
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@roeck-us.net>
| -rw-r--r-- | drivers/hwmon/emc1403.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c index 9acd5bfcfa01..f76e5503b89a 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); |