From: Len Brown <lenb@kernel.org>
To: linux-acpi@vger.kernel.org, linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Zhang Rui <rui.zhang@intel.com>
Subject: [PATCH 10/30] Thermal: List thermal_instance in thermal_cooling_device.
Date: Tue, 9 Oct 2012 01:54:00 -0400 [thread overview]
Message-ID: <b5e4ae620b06274981781aeadc2aea50b507f7fb.1349761836.git.len.brown@intel.com> (raw)
In-Reply-To: <1349762060-25334-1-git-send-email-lenb@kernel.org>
In-Reply-To: <e3f25e6e5836c4790fbe395ff42e241f372d859d.1349761836.git.len.brown@intel.com>
From: Zhang Rui <rui.zhang@intel.com>
List thermal_instance in thermal_cooling_device so that
cooling device can know the cooling state requirement
of all the thermal instances.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Rafael J. Wysocki <rjw@sisk.pl>
Reviewed-by: Eduardo Valentin <eduardo.valentin@ti.com>
---
drivers/thermal/thermal_sys.c | 7 ++++++-
include/linux/thermal.h | 1 +
2 files changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index 2884376..70045c1 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -57,6 +57,7 @@ struct thermal_instance {
char attr_name[THERMAL_NAME_LENGTH];
struct device_attribute attr;
struct list_head tz_node; /* node in tz->thermal_instances */
+ struct list_head cdev_node; /* node in cdev->thermal_instances */
};
static DEFINE_IDR(thermal_tz_idr);
@@ -878,8 +879,10 @@ int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz,
result = -EEXIST;
break;
}
- if (!result)
+ if (!result) {
list_add_tail(&dev->tz_node, &tz->thermal_instances);
+ list_add_tail(&dev->cdev_node, &cdev->thermal_instances);
+ }
mutex_unlock(&tz->lock);
if (!result)
@@ -915,6 +918,7 @@ int thermal_zone_unbind_cooling_device(struct thermal_zone_device *tz,
list_for_each_entry_safe(pos, next, &tz->thermal_instances, tz_node) {
if (pos->tz == tz && pos->trip == trip && pos->cdev == cdev) {
list_del(&pos->tz_node);
+ list_del(&pos->cdev_node);
mutex_unlock(&tz->lock);
goto unbind;
}
@@ -984,6 +988,7 @@ thermal_cooling_device_register(char *type, void *devdata,
}
strcpy(cdev->type, type);
+ INIT_LIST_HEAD(&cdev->thermal_instances);
cdev->ops = ops;
cdev->device.class = &thermal_class;
cdev->devdata = devdata;
diff --git a/include/linux/thermal.h b/include/linux/thermal.h
index cb0b0e3..9ae378a 100644
--- a/include/linux/thermal.h
+++ b/include/linux/thermal.h
@@ -94,6 +94,7 @@ struct thermal_cooling_device {
struct device device;
void *devdata;
const struct thermal_cooling_device_ops *ops;
+ struct list_head thermal_instances;
struct list_head node;
};
--
1.8.0.rc1
next prev parent reply other threads:[~2012-10-09 6:03 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-09 5:53 ACPI & Thermal patches for Linux-3.7-merge Len Brown
2012-10-09 5:53 ` [PATCH 01/30] Thermal: Introduce multiple cooling states support Len Brown
2012-10-09 5:53 ` [PATCH 02/30] Thermal: Introduce cooling states range support Len Brown
2012-10-09 5:53 ` [PATCH 03/30] Thermal: set upper and lower limits Len Brown
2012-10-09 5:53 ` [PATCH 04/30] Thermal: Introduce .get_trend() callback Len Brown
2012-10-09 5:53 ` [PATCH 05/30] Thermal: Remove tc1/tc2 in generic thermal layer Len Brown
2012-10-09 5:53 ` [PATCH 06/30] Thermal: Introduce thermal_zone_trip_update() Len Brown
2012-10-09 5:53 ` [PATCH 07/30] Thermal: rename structure thermal_cooling_device_instance to thermal_instance Len Brown
2012-10-09 5:53 ` [PATCH 08/30] Thermal: Rename thermal_zone_device.cooling_devices Len Brown
2012-10-09 5:53 ` [PATCH 09/30] Thermal: Rename thermal_instance.node to thermal_instance.tz_node Len Brown
2012-10-09 5:54 ` Len Brown [this message]
2012-10-09 5:54 ` [PATCH 11/30] Thermal: Introduce simple arbitrator for setting device cooling state Len Brown
2012-10-09 5:54 ` [PATCH 12/30] Thermal: Unify the code for both active and passive cooling Len Brown
2012-10-09 5:54 ` [PATCH 13/30] Thermal: Introduce locking for cdev.thermal_instances list Len Brown
2012-10-09 5:54 ` [PATCH 14/30] thermal: fix potential out-of-bounds memory access Len Brown
2012-10-09 5:54 ` [PATCH 15/30] thermal: add Renesas R-Car thermal sensor support Len Brown
2012-10-09 5:54 ` [PATCH 16/30] thermal: Fix potential NULL pointer accesses Len Brown
2012-10-09 5:54 ` [PATCH 17/30] Fix a build error Len Brown
2012-10-09 5:54 ` [PATCH 18/30] thermal: add generic cpufreq cooling implementation Len Brown
2012-10-09 5:54 ` [PATCH 19/30] hwmon: exynos4: move thermal sensor driver to driver/thermal directory Len Brown
2012-10-09 5:54 ` [PATCH 20/30] thermal: exynos5: add exynos5250 thermal sensor driver support Len Brown
2012-10-09 5:54 ` [PATCH 21/30] thermal: exynos: register the tmu sensor with the kernel thermal layer Len Brown
2012-10-09 5:54 ` [PATCH 22/30] ARM: exynos: add thermal sensor driver platform data support Len Brown
2012-10-09 5:54 ` [PATCH 23/30] thermal: exynos: Use devm_* functions Len Brown
2012-10-09 5:54 ` [PATCH 24/30] Thermal: Fix bug on cpu_cooling, cooling device's id conflict problem Len Brown
2012-10-09 5:54 ` [PATCH 25/30] thermal: Exynos: Fix NULL pointer dereference in exynos_unregister_thermal() Len Brown
2012-10-09 5:54 ` [PATCH 26/30] ACPI: EC: Make the GPE storm threshold a module parameter Len Brown
2012-10-09 5:54 ` [PATCH 27/30] ACPI: EC: Add a quirk for CLEVO M720T/M730T laptop Len Brown
2012-10-09 6:16 ` Jonathan Nieder
2012-10-09 6:22 ` Feng Tang
2012-10-09 6:59 ` Jonathan Nieder
2012-10-09 7:19 ` Feng Tang
2012-10-09 5:54 ` [PATCH 28/30] cpuidle / ACPI: fix potential NULL pointer dereference Len Brown
2012-10-09 5:54 ` [PATCH 29/30] ACPI idle, CPU hotplug: Fix NULL pointer dereference during hotplug Len Brown
2012-10-09 5:54 ` [PATCH 30/30] tools/power/acpi/acpidump: remove duplicated include from acpidump.c Len Brown
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