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authorDaniel Lezcano <daniel.lezcano@linaro.org>2020-03-31 19:54:48 +0300
committerDaniel Lezcano <daniel.lezcano@linaro.org>2020-04-14 12:41:12 +0300
commitbceb5646a15dad49ceb29ec16b8acc10075d0627 (patch)
treebae77696e1c7857fb0b151d2cf5b7d6d90dfad85 /drivers/thermal
parentd2bc4dd91da6095a769fdc9bc519d3be7ad5f97a (diff)
downloadlinux-bceb5646a15dad49ceb29ec16b8acc10075d0627.tar.xz
thermal: core: Make thermal_zone_set_trips private
The function thermal_zone_set_trips() is used by the thermal core code in order to update the next trip points, there are no other users. Move the function definition in the thermal_core.h, remove the EXPORT_SYMBOL_GPL and document the function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Link: https://lore.kernel.org/r/20200331165449.30355-1-daniel.lezcano@linaro.org
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/thermal_core.h3
-rw-r--r--drivers/thermal/thermal_helpers.c13
2 files changed, 15 insertions, 1 deletions
diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
index a9bf00e91d64..37cd4e2bead2 100644
--- a/drivers/thermal/thermal_core.h
+++ b/drivers/thermal/thermal_core.h
@@ -69,6 +69,9 @@ void thermal_zone_device_unbind_exception(struct thermal_zone_device *,
int thermal_zone_device_set_policy(struct thermal_zone_device *, char *);
int thermal_build_list_of_policies(char *buf);
+/* Helpers */
+void thermal_zone_set_trips(struct thermal_zone_device *tz);
+
/* sysfs I/F */
int thermal_zone_create_device_groups(struct thermal_zone_device *, int);
void thermal_zone_destroy_device_groups(struct thermal_zone_device *);
diff --git a/drivers/thermal/thermal_helpers.c b/drivers/thermal/thermal_helpers.c
index 2ba756af76b7..59eaf2d0fdb3 100644
--- a/drivers/thermal/thermal_helpers.c
+++ b/drivers/thermal/thermal_helpers.c
@@ -113,6 +113,18 @@ exit:
}
EXPORT_SYMBOL_GPL(thermal_zone_get_temp);
+/**
+ * thermal_zone_set_trips - Computes the next trip points for the driver
+ * @tz: a pointer to a thermal zone device structure
+ *
+ * The function computes the next temperature boundaries by browsing
+ * the trip points. The result is the closer low and high trip points
+ * to the current temperature. These values are passed to the backend
+ * driver to let it set its own notification mechanism (usually an
+ * interrupt).
+ *
+ * It does not return a value
+ */
void thermal_zone_set_trips(struct thermal_zone_device *tz)
{
int low = -INT_MAX;
@@ -161,7 +173,6 @@ void thermal_zone_set_trips(struct thermal_zone_device *tz)
exit:
mutex_unlock(&tz->lock);
}
-EXPORT_SYMBOL_GPL(thermal_zone_set_trips);
void thermal_cdev_update(struct thermal_cooling_device *cdev)
{