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: [PATCHv4 14/15] Thermal: Add a notification API
Date: Tue, 18 Sep 2012 11:05:05 +0530 [thread overview]
Message-ID: <1347946506-18449-15-git-send-email-durgadoss.r@intel.com> (raw)
In-Reply-To: <1347946506-18449-1-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 cde613b..4f77d89 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 2bd9158..807f214 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -232,6 +232,7 @@ 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:[~2012-09-18 5:36 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-18 5:34 [PATCHv4 00/15] Thermal_framework_enhancements Durgadoss R
2012-09-18 5:34 ` [PATCHv4 01/15] Thermal: Refactor thermal.h file Durgadoss R
2012-09-18 5:34 ` [PATCHv4 02/15] Thermal: Move thermal_instance to thermal_core.h Durgadoss R
2012-09-18 5:34 ` [PATCHv4 03/15] Thermal: Add get trend, get instance API's to thermal_sys Durgadoss R
2012-09-18 5:34 ` [PATCHv4 04/15] Thermal: Add platform level information to thermal.h Durgadoss R
2012-09-21 7:12 ` Zhang Rui
2012-09-21 8:07 ` R, Durgadoss
2012-09-24 5:43 ` Zhang Rui
2012-09-18 5:34 ` [PATCHv4 05/15] Thermal: Pass zone parameters as argument to tzd_register Durgadoss R
2012-09-18 5:34 ` [PATCHv4 06/15] Thermal: Add thermal governor registration APIs Durgadoss R
2012-09-18 5:34 ` [PATCHv4 07/15] Thermal: Add a policy sysfs attribute Durgadoss R
2012-09-21 8:07 ` Zhang Rui
2012-09-21 8:09 ` R, Durgadoss
2012-09-24 5:44 ` Zhang Rui
2012-09-18 5:34 ` [PATCHv4 08/15] Thermal: Update binding logic based on platform data Durgadoss R
2012-09-18 5:35 ` [PATCHv4 09/15] Thermal: Make thermal_cdev_update as a global function Durgadoss R
2012-09-18 5:35 ` [PATCHv4 10/15] Thermal: Introduce fair_share thermal governor Durgadoss R
2012-09-18 5:35 ` [PATCHv4 11/15] Thermal: Introduce a step_wise " Durgadoss R
2012-09-18 7:13 ` Zhang Rui
2012-09-18 8:11 ` R, Durgadoss
2012-09-18 8:22 ` Zhang Rui
2012-09-18 8:32 ` R, Durgadoss
2012-09-18 5:35 ` [PATCHv4 12/15] Thermal: Add a thermal notifier for user space Durgadoss R
2012-09-18 5:35 ` [PATCHv4 13/15] Thermal: Remove throttling logic out of thermal_sys.c Durgadoss R
2012-09-18 5:35 ` Durgadoss R [this message]
2012-09-18 5:35 ` [PATCHv4 15/15] Thermal: Add documentation for platform layer data Durgadoss R
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1347946506-18449-15-git-send-email-durgadoss.r@intel.com \
--to=durgadoss.r@intel.com \
--cc=eduardo.valentin@ti.com \
--cc=lenb@kernel.org \
--cc=linux-acpi@vger.kernel.org \
--cc=rui.zhang@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).