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Subject[PATCH 03/11] thermal: add new sysfs file for irq-mode
Date
Patch adds show functions for irq-mode feature.
It allocates new attributes and extends the old list.

Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Lukasz Luba <l.luba@partner.samsung.com>
---
drivers/thermal/thermal_sysfs.c | 53 +++++++++++++++++++++++++++++++++++++++--
1 file changed, 51 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/thermal_sysfs.c b/drivers/thermal/thermal_sysfs.c
index 2241cea..372b439 100644
--- a/drivers/thermal/thermal_sysfs.c
+++ b/drivers/thermal/thermal_sysfs.c
@@ -21,6 +21,8 @@

#include "thermal_core.h"

+#define TRIP_ATTR_NUM 4
+
/* sys I/F for thermal zone */

static ssize_t
@@ -167,6 +169,28 @@ trip_point_temp_show(struct device *dev, struct device_attribute *attr,
}

static ssize_t
+trip_point_irq_mode_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct thermal_zone_device *tz = to_thermal_zone(dev);
+ int trip, ret;
+ bool mode;
+
+ if (!tz->ops->get_trip_irq_mode)
+ return -EPERM;
+
+ if (sscanf(attr->attr.name, "trip_point_%d_irq", &trip) != 1)
+ return -EINVAL;
+
+ ret = tz->ops->get_trip_irq_mode(tz, trip, &mode);
+
+ if (ret)
+ return ret;
+
+ return sprintf(buf, "%d\n", mode);
+}
+
+static ssize_t
trip_point_hyst_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
@@ -520,10 +544,19 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
if (!tz->trip_type_attrs)
return -ENOMEM;

+ tz->trip_irq_mode_attrs = kcalloc(tz->trips,
+ sizeof(*tz->trip_irq_mode_attrs),
+ GFP_KERNEL);
+ if (!tz->trip_irq_mode_attrs) {
+ kfree(tz->trip_type_attrs);
+ return -ENOMEM;
+ }
+
tz->trip_temp_attrs = kcalloc(tz->trips, sizeof(*tz->trip_temp_attrs),
GFP_KERNEL);
if (!tz->trip_temp_attrs) {
kfree(tz->trip_type_attrs);
+ kfree(tz->trip_irq_mode_attrs);
return -ENOMEM;
}

@@ -533,14 +566,17 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
GFP_KERNEL);
if (!tz->trip_hyst_attrs) {
kfree(tz->trip_type_attrs);
+ kfree(tz->trip_irq_mode_attrs);
kfree(tz->trip_temp_attrs);
return -ENOMEM;
}
}

- attrs = kcalloc(tz->trips * 3 + 1, sizeof(*attrs), GFP_KERNEL);
+ attrs = kcalloc(tz->trips * TRIP_ATTR_NUM + 1, sizeof(*attrs),
+ GFP_KERNEL);
if (!attrs) {
kfree(tz->trip_type_attrs);
+ kfree(tz->trip_irq_mode_attrs);
kfree(tz->trip_temp_attrs);
if (tz->ops->get_trip_hyst)
kfree(tz->trip_hyst_attrs);
@@ -559,6 +595,19 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
tz->trip_type_attrs[indx].attr.show = trip_point_type_show;
attrs[indx] = &tz->trip_type_attrs[indx].attr.attr;

+ /* create trip irq_mode attribute */
+ snprintf(tz->trip_irq_mode_attrs[indx].name,
+ THERMAL_NAME_LENGTH, "trip_point_%d_irq", indx);
+
+ sysfs_attr_init(&tz->trip_irq_mode_attrs[indx].attr.attr);
+ tz->trip_irq_mode_attrs[indx].attr.attr.name =
+ tz->trip_irq_mode_attrs[indx].name;
+ tz->trip_irq_mode_attrs[indx].attr.attr.mode = S_IRUGO;
+ tz->trip_irq_mode_attrs[indx].attr.show =
+ trip_point_irq_mode_show;
+ attrs[indx + tz->trips * 3] =
+ &tz->trip_irq_mode_attrs[indx].attr.attr;
+
/* create trip temp attribute */
snprintf(tz->trip_temp_attrs[indx].name, THERMAL_NAME_LENGTH,
"trip_point_%d_temp", indx);
@@ -595,7 +644,7 @@ static int create_trip_attrs(struct thermal_zone_device *tz, int mask)
attrs[indx + tz->trips * 2] =
&tz->trip_hyst_attrs[indx].attr.attr;
}
- attrs[tz->trips * 3] = NULL;
+ attrs[tz->trips * TRIP_ATTR_NUM] = NULL;

tz->trips_attribute_group.attrs = attrs;

--
2.7.4
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