summaryrefslogtreecommitdiffstats
path: root/drivers/thermal
diff options
context:
space:
mode:
authorAndrzej Pietrasiewicz <andrzej.p@collabora.com>2020-06-29 14:29:20 +0200
committerDaniel Lezcano <daniel.lezcano@linaro.org>2020-06-29 20:26:36 +0200
commitac5d9ecc74d8beee8c87f1441e4adaf4e9fe90c5 (patch)
tree6bf1c0736ad4b083d97520cfec22970f2b30d037 /drivers/thermal
parent1ee14820fd8ee79c4fc191155f48c985f28040e2 (diff)
downloadlinux-ac5d9ecc74d8beee8c87f1441e4adaf4e9fe90c5.tar.bz2
thermal: Add mode helpers
Prepare for making the drivers not access tzd's private members. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> [staticize thermal_zone_device_set_mode()] Signed-off-by: kernel test robot <lkp@intel.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200629122925.21729-7-andrzej.p@collabora.com
Diffstat (limited to 'drivers/thermal')
-rw-r--r--drivers/thermal/thermal_core.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 14d3b1b94c4f..f02c57c986f0 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -459,6 +459,59 @@ static void thermal_zone_device_reset(struct thermal_zone_device *tz)
thermal_zone_device_init(tz);
}
+static int thermal_zone_device_set_mode(struct thermal_zone_device *tz,
+ enum thermal_device_mode mode)
+{
+ int ret = 0;
+
+ mutex_lock(&tz->lock);
+
+ /* do nothing if mode isn't changing */
+ if (mode == tz->mode) {
+ mutex_unlock(&tz->lock);
+
+ return ret;
+ }
+
+ if (tz->ops->set_mode)
+ ret = tz->ops->set_mode(tz, mode);
+
+ if (!ret)
+ tz->mode = mode;
+
+ mutex_unlock(&tz->lock);
+
+ thermal_zone_device_update(tz, THERMAL_EVENT_UNSPECIFIED);
+
+ return ret;
+}
+
+int thermal_zone_device_enable(struct thermal_zone_device *tz)
+{
+ return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_ENABLED);
+}
+EXPORT_SYMBOL_GPL(thermal_zone_device_enable);
+
+int thermal_zone_device_disable(struct thermal_zone_device *tz)
+{
+ return thermal_zone_device_set_mode(tz, THERMAL_DEVICE_DISABLED);
+}
+EXPORT_SYMBOL_GPL(thermal_zone_device_disable);
+
+int thermal_zone_device_is_enabled(struct thermal_zone_device *tz)
+{
+ enum thermal_device_mode mode;
+
+ mutex_lock(&tz->lock);
+
+ mode = tz->mode;
+
+ mutex_unlock(&tz->lock);
+
+ return mode == THERMAL_DEVICE_ENABLED;
+}
+EXPORT_SYMBOL_GPL(thermal_zone_device_is_enabled);
+
void thermal_zone_device_update(struct thermal_zone_device *tz,
enum thermal_notify_event event)
{