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From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: Linux PM <linux-pm@vger.kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
	"Lukasz Luba" <lukasz.luba@arm.com>,
	"Daniel Lezcano" <daniel.lezcano@linaro.org>,
	"Zhang Rui" <rui.zhang@intel.com>,
	"Peter Kästle" <peter@piie.net>
Subject: [PATCH v1 2/4] thermal: gov_bang_bang: Split bang_bang_control()
Date: Tue, 13 Aug 2024 16:26:42 +0200	[thread overview]
Message-ID: <3313587.aeNJFYEL58@rjwysocki.net> (raw)
In-Reply-To: <1903691.tdWV9SEqCh@rjwysocki.net>

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

Move the setting of the thermal instance target state from
bang_bang_control() into a separate function that will be also called
in a different place going forward.

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/thermal/gov_bang_bang.c |   42 +++++++++++++++++++++-------------------
 1 file changed, 23 insertions(+), 19 deletions(-)

Index: linux-pm/drivers/thermal/gov_bang_bang.c
===================================================================
--- linux-pm.orig/drivers/thermal/gov_bang_bang.c
+++ linux-pm/drivers/thermal/gov_bang_bang.c
@@ -13,6 +13,27 @@
 
 #include "thermal_core.h"
 
+static void bang_bang_set_instance_target(struct thermal_instance *instance,
+					  unsigned int target)
+{
+	if (instance->target != 0 && instance->target != 1 &&
+	    instance->target != THERMAL_NO_TARGET)
+		pr_debug("Unexpected state %ld of thermal instance %s in bang-bang\n",
+			 instance->target, instance->name);
+
+	/*
+	 * Enable the fan when the trip is crossed on the way up and disable it
+	 * when the trip is crossed on the way down.
+	 */
+	instance->target = target;
+
+	dev_dbg(&instance->cdev->device, "target=%ld\n", instance->target);
+
+	mutex_lock(&instance->cdev->lock);
+	__thermal_cdev_update(instance->cdev);
+	mutex_unlock(&instance->cdev->lock);
+}
+
 /**
  * bang_bang_control - controls devices associated with the given zone
  * @tz: thermal_zone_device
@@ -54,25 +75,8 @@ static void bang_bang_control(struct the
 		tz->temperature, trip->hysteresis);
 
 	list_for_each_entry(instance, &tz->thermal_instances, tz_node) {
-		if (instance->trip != trip)
-			continue;
-
-		if (instance->target != 0 && instance->target != 1 &&
-		    instance->target != THERMAL_NO_TARGET)
-			pr_debug("Unexpected state %ld of thermal instance %s in bang-bang\n",
-				 instance->target, instance->name);
-
-		/*
-		 * Enable the fan when the trip is crossed on the way up and
-		 * disable it when the trip is crossed on the way down.
-		 */
-		instance->target = crossed_up;
-
-		dev_dbg(&instance->cdev->device, "target=%ld\n", instance->target);
-
-		mutex_lock(&instance->cdev->lock);
-		__thermal_cdev_update(instance->cdev);
-		mutex_unlock(&instance->cdev->lock);
+		if (instance->trip == trip)
+			bang_bang_set_instance_target(instance, crossed_up);
 	}
 }
 




  parent reply	other threads:[~2024-08-13 14:30 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-08-13 14:23 [PATCH v1 0/4] thermal: gov_bang_bang: Prevent cooling devices from getting stuck in the "on" state Rafael J. Wysocki
2024-08-13 14:25 ` [PATCH v1 1/4] thermal: gov_bang_bang: Call __thermal_cdev_update() directly Rafael J. Wysocki
2024-08-13 21:03   ` Peter Kästle
2024-08-14  6:18   ` Zhang, Rui
2024-08-14 17:34     ` Rafael J. Wysocki
2024-08-16  3:00   ` Zhang, Rui
2024-08-13 14:26 ` Rafael J. Wysocki [this message]
2024-08-13 21:03   ` [PATCH v1 2/4] thermal: gov_bang_bang: Split bang_bang_control() Peter Kästle
2024-08-16  3:00   ` Zhang, Rui
2024-08-13 14:27 ` [PATCH v1 3/4] thermal: gov_bang_bang: Add .manage() callback Rafael J. Wysocki
2024-08-13 21:04   ` Peter Kästle
2024-08-13 21:07   ` Peter Kästle
2024-08-14 17:18     ` Rafael J. Wysocki
2024-08-14 20:55       ` Peter Kästle
2024-08-16  3:00   ` Zhang, Rui
2024-08-13 14:29 ` [PATCH v1 4/4] thermal: gov_bang_bang: Use governor_data to reduce overhead Rafael J. Wysocki
2024-08-13 21:08   ` Peter Kästle
2024-08-14  6:09   ` Zhang, Rui
2024-08-14 17:26     ` Rafael J. Wysocki
2024-08-15  3:26       ` Zhang, Rui
2024-08-15 12:35         ` Rafael J. Wysocki
2024-08-16  2:59           ` Zhang, Rui

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