hwmon/pc87360 separate alarm files: add in-min/max-alarms

Adds vin-min/max-alarm callbacks, sensor-device-attribute declarations,
and refs to those new decls in the macro used to initialize the vin_group
(of sysfs files)

[akpm@linux-foundation.org: cleanups]
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: "Mark M. Hoffman" <mhoffman@lightlink.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 51 insertions, 1 deletions

diff --git a/drivers/hwmon/pc87360.c b/drivers/hwmon/pc87360.c
index 1043b116bded..3a7d7fa64ebc 100644
--- a/drivers/hwmon/pc87360.c
+++ b/drivers/hwmon/pc87360.c
@@ -494,11 +494,61 @@ static struct sensor_device_attribute in_max[] = {
 #define CHAN_ALM_MAX	0x04	/* max limit exceeded */
 #define TEMP_ALM_CRIT	0x08	/* temp crit exceeded (temp only) */
 
+/* show_in_min/max_alarm() reads data from the per-channel status
+   register (sec 11.5.12), not the vin event status registers (sec
+   11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms) */
+
+static ssize_t show_in_min_alarm(struct device *dev,
+			struct device_attribute *devattr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	unsigned nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
+}
+static ssize_t show_in_max_alarm(struct device *dev,
+			struct device_attribute *devattr, char *buf)
+{
+	struct pc87360_data *data = pc87360_update_device(dev);
+	unsigned nr = to_sensor_dev_attr(devattr)->index;
+
+	return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
+}
+
+static struct sensor_device_attribute in_min_alarm[] = {
+	SENSOR_ATTR(in0_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 0),
+	SENSOR_ATTR(in1_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 1),
+	SENSOR_ATTR(in2_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 2),
+	SENSOR_ATTR(in3_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 3),
+	SENSOR_ATTR(in4_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 4),
+	SENSOR_ATTR(in5_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 5),
+	SENSOR_ATTR(in6_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 6),
+	SENSOR_ATTR(in7_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 7),
+	SENSOR_ATTR(in8_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 8),
+	SENSOR_ATTR(in9_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 9),
+	SENSOR_ATTR(in10_min_alarm, S_IRUGO, show_in_min_alarm, NULL, 10),
+};
+static struct sensor_device_attribute in_max_alarm[] = {
+	SENSOR_ATTR(in0_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 0),
+	SENSOR_ATTR(in1_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 1),
+	SENSOR_ATTR(in2_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 2),
+	SENSOR_ATTR(in3_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 3),
+	SENSOR_ATTR(in4_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 4),
+	SENSOR_ATTR(in5_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 5),
+	SENSOR_ATTR(in6_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 6),
+	SENSOR_ATTR(in7_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 7),
+	SENSOR_ATTR(in8_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 8),
+	SENSOR_ATTR(in9_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 9),
+	SENSOR_ATTR(in10_max_alarm, S_IRUGO, show_in_max_alarm, NULL, 10),
+};
+
 #define VIN_UNIT_ATTRS(X) \
 	&in_input[X].dev_attr.attr,	\
 	&in_status[X].dev_attr.attr,	\
 	&in_min[X].dev_attr.attr,	\
-	&in_max[X].dev_attr.attr
+	&in_max[X].dev_attr.attr,	\
+	&in_min_alarm[X].dev_attr.attr,	\
+	&in_max_alarm[X].dev_attr.attr
 
 static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
 {