From: Durgadoss R <durgadoss.r@intel.com>
To: lenb@kernel.org, rui.zhang@intel.com
Cc: linux-acpi@vger.kernel.org, eduardo.valentin@ti.com,
Durgadoss R <durgadoss.r@intel.com>
Subject: [PATCHv3 14/15] Thermal: Add a notification API
Date: Sat, 1 Sep 2012 17:21:35 +0530 [thread overview]
Message-ID: <1346500296-25200-15-git-send-email-durgadoss.r@intel.com> (raw)
In-Reply-To: <1346500296-25200-1-git-send-email-durgadoss.r@intel.com>
This patch adds a notification API which the sensor drivers'
can use to notify the framework. The framework then takes
care of the throttling according to the configured policy.
Signed-off-by: Durgadoss R <durgadoss.r@intel.com>
---
drivers/thermal/thermal_sys.c | 18 ++++++++++++++++++
include/linux/thermal.h | 1 +
2 files changed, 19 insertions(+)
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index 086c1c9..e006d03 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -1372,6 +1372,24 @@ void thermal_cdev_update(struct thermal_cooling_device *cdev)
EXPORT_SYMBOL(thermal_cdev_update);
/**
+ * notify_thermal_framework - Sensor drivers use this API to notify framework
+ * @tz: thermal zone device
+ * @trip: indicates which trip point has been crossed
+ *
+ * This function handles the trip events from sensor drivers. It starts
+ * throttling the cooling devices according to the policy configured.
+ * For CRITICAL and HOT trip points, this notifies the respective drivers,
+ * and does actual throttling for other trip points i.e ACTIVE and PASSIVE.
+ * The throttling policy is based on the configured platform data; if no
+ * platform data is provided, this uses the step_wise throttling policy.
+ */
+void notify_thermal_framework(struct thermal_zone_device *tz, int trip)
+{
+ handle_thermal_trip(tz, trip);
+}
+EXPORT_SYMBOL(notify_thermal_framework);
+
+/**
* create_trip_attrs - create attributes for trip points
* @tz: the thermal zone device
* @mask: Writeable trip point bitmap.
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index aa903dd..c5deba0 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -234,6 +234,7 @@ int get_tz_trend(struct thermal_zone_device *, int);
struct thermal_instance *get_thermal_instance(struct thermal_zone_device *,
struct thermal_cooling_device *, int);
void thermal_cdev_update(struct thermal_cooling_device *);
+void notify_thermal_framework(struct thermal_zone_device *, int);
int thermal_register_governor(struct thermal_governor *);
void thermal_unregister_governor(struct thermal_governor *);
--
1.7.9.5
next prev parent reply other threads:[~2012-09-01 11:52 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-01 11:51 [PATCHv3 00/15] Thermal_Framework_Enhancements Durgadoss R
2012-09-01 11:51 ` [PATCHv3 01/15] Thermal: Refactor thermal.h file Durgadoss R
2012-09-01 11:51 ` [PATCHv3 02/15] Thermal: Move thermal_instance to thermal_core.h Durgadoss R
2012-09-01 11:51 ` [PATCHv3 03/15] Thermal: Add get trend, get instance API's to thermal_sys Durgadoss R
2012-09-01 11:51 ` [PATCHv3 04/15] Thermal: Add platform level information to thermal.h Durgadoss R
2012-09-01 11:51 ` [PATCHv3 05/15] Thermal: Pass zone parameters as argument to tzd_register Durgadoss R
2012-09-01 11:51 ` [PATCHv3 06/15] Thermal: Add thermal governor registration APIs Durgadoss R
2012-09-10 8:28 ` Zhang Rui
2012-09-01 11:51 ` [PATCHv3 07/15] Thermal: Add a policy sysfs attribute Durgadoss R
2012-09-01 11:51 ` [PATCHv3 08/15] Thermal: Update binding logic based on platform data Durgadoss R
2012-09-01 11:51 ` [PATCHv3 09/15] Thermal: Make thermal_cdev_update as a global function Durgadoss R
2012-09-01 11:51 ` [PATCHv3 10/15] Thermal: Introduce fair_share thermal governor Durgadoss R
2012-09-01 11:51 ` [PATCHv3 11/15] Thermal: Introduce a step_wise " Durgadoss R
2012-09-01 11:51 ` [PATCHv3 12/15] Thermal: Register a governor for user space Durgadoss R
2012-09-10 8:37 ` Zhang Rui
2012-09-01 11:51 ` [PATCHv3 13/15] Thermal: Remove throttling logic out of thermal_sys.c Durgadoss R
2012-09-10 8:44 ` Zhang Rui
2012-09-10 8:56 ` R, Durgadoss
2012-09-11 0:24 ` Zhang Rui
2012-09-11 3:05 ` R, Durgadoss
2012-09-11 3:20 ` Zhang Rui
2012-09-11 3:39 ` R, Durgadoss
2012-09-01 11:51 ` Durgadoss R [this message]
2012-09-01 11:51 ` [PATCHv3 15/15] Thermal: Add documentation for platform layer data Durgadoss R
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