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: [PATCHv2 12/14] Thermal: Add a notification API
Date: Mon, 27 Aug 2012 09:58:24 +0530 [thread overview]
Message-ID: <1346041706-29642-13-git-send-email-durgadoss.r@intel.com> (raw)
In-Reply-To: <1346041706-29642-1-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 3f96f3e..0f4cc04 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -1310,6 +1310,24 @@ 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 c7e0a4d..273ab0d 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -226,6 +226,7 @@ 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);
/*
* The platform layer shall define a 'function' that provides the
--
1.7.9.5
next prev parent reply other threads:[~2012-08-27 4:29 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-27 4:28 [PATCHv2 00/14] Thermal Framework Enhancements Durgadoss R
2012-08-27 4:28 ` [PATCHv2 01/14] Thermal: Refactor thermal.h file Durgadoss R
2012-08-27 4:28 ` [PATCHv2 02/14] Thermal: Move thermal_instance to thermal_core.h Durgadoss R
2012-08-27 4:28 ` [PATCHv2 03/14] Thermal: Add get trend, get instance API's to thermal_sys Durgadoss R
2012-08-27 8:11 ` Zhang, Rui
2012-08-27 8:47 ` R, Durgadoss
2012-08-27 9:19 ` Zhang, Rui
2012-08-27 9:24 ` R, Durgadoss
2012-08-27 4:28 ` [PATCHv2 04/14] Thermal: Add platform level information to thermal.h Durgadoss R
2012-08-27 8:27 ` Zhang, Rui
2012-08-27 8:57 ` R, Durgadoss
2012-08-27 9:22 ` Zhang, Rui
2012-08-27 9:25 ` R, Durgadoss
2012-08-27 4:28 ` [PATCHv2 05/14] Thermal: Obtain platform data for thermal zone Durgadoss R
2012-08-27 8:29 ` Zhang, Rui
2012-08-27 8:59 ` R, Durgadoss
2012-08-27 4:28 ` [PATCHv2 06/14] Thermal: Add a policy sysfs attribute Durgadoss R
2012-08-27 8:31 ` Zhang, Rui
2012-08-27 9:02 ` R, Durgadoss
2012-08-27 9:25 ` Zhang, Rui
2012-08-27 10:23 ` R, Durgadoss
2012-08-27 10:44 ` Zhang, Rui
2012-08-27 9:35 ` Zhang, Rui
2012-08-27 10:25 ` R, Durgadoss
2012-08-27 4:28 ` [PATCHv2 07/14] Thermal: Update binding logic based on platform data Durgadoss R
2012-08-27 9:50 ` Zhang, Rui
2012-08-27 10:29 ` R, Durgadoss
2012-08-27 4:28 ` [PATCHv2 08/14] Thermal: Make thermal_cdev_update as a global function Durgadoss R
2012-08-27 4:28 ` [PATCHv2 09/14] Thermal: Introduce fair_share thermal governor Durgadoss R
2012-08-27 4:28 ` [PATCHv2 10/14] Thermal: Introduce a step_wise " Durgadoss R
2012-08-27 4:28 ` [PATCHv2 11/14] Thermal: Remove throttling logic out of thermal_sys.c Durgadoss R
2012-08-27 4:28 ` Durgadoss R [this message]
2012-08-27 4:28 ` [PATCHv2 13/14] Thermal: Add documentation for platform layer data Durgadoss R
2012-08-27 4:28 ` [PATCHv2 14/14] Thermal: Platform layer changes to provide thermal data Durgadoss R
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