thermal/governors: Prefix all source files with gov_

Bang-bang governor source file is prefixed with gov_. Do the same for
other governors for consistency so they're easy to find in the sources.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/b9a85d3204712f14e320504948c12712dc0b291b.1589199124.git.amit.kucheria@linaro.org

1 files changed, 0 insertions, 209 deletions

diff --git a/drivers/thermal/step_wise.c b/drivers/thermal/step_wise.c
deleted file mode 100644
index 2ae7198d3067..000000000000
--- a/drivers/thermal/step_wise.c
+++ /dev/null
@@ -1,209 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- *  step_wise.c - A step-by-step Thermal throttling governor
- *
- *  Copyright (C) 2012 Intel Corp
- *  Copyright (C) 2012 Durgadoss R <durgadoss.r@intel.com>
- *
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-
-#include <linux/thermal.h>
-#include <trace/events/thermal.h>
-
-#include "thermal_core.h"
-
-/*
- * If the temperature is higher than a trip point,
- *    a. if the trend is THERMAL_TREND_RAISING, use higher cooling
- *       state for this trip point
- *    b. if the trend is THERMAL_TREND_DROPPING, do nothing
- *    c. if the trend is THERMAL_TREND_RAISE_FULL, use upper limit
- *       for this trip point
- *    d. if the trend is THERMAL_TREND_DROP_FULL, use lower limit
- *       for this trip point
- * If the temperature is lower than a trip point,
- *    a. if the trend is THERMAL_TREND_RAISING, do nothing
- *    b. if the trend is THERMAL_TREND_DROPPING, use lower cooling
- *       state for this trip point, if the cooling state already
- *       equals lower limit, deactivate the thermal instance
- *    c. if the trend is THERMAL_TREND_RAISE_FULL, do nothing
- *    d. if the trend is THERMAL_TREND_DROP_FULL, use lower limit,
- *       if the cooling state already equals lower limit,
- *       deactivate the thermal instance
- */
-static unsigned long get_target_state(struct thermal_instance *instance,
-				enum thermal_trend trend, bool throttle)
-{
-	struct thermal_cooling_device *cdev = instance->cdev;
-	unsigned long cur_state;
-	unsigned long next_target;
-
-	/*
-	 * We keep this instance the way it is by default.
-	 * Otherwise, we use the current state of the
-	 * cdev in use to determine the next_target.
-	 */
-	cdev->ops->get_cur_state(cdev, &cur_state);
-	next_target = instance->target;
-	dev_dbg(&cdev->device, "cur_state=%ld\n", cur_state);
-
-	if (!instance->initialized) {
-		if (throttle) {
-			next_target = (cur_state + 1) >= instance->upper ?
-					instance->upper :
-					((cur_state + 1) < instance->lower ?
-					instance->lower : (cur_state + 1));
-		} else {
-			next_target = THERMAL_NO_TARGET;
-		}
-
-		return next_target;
-	}
-
-	switch (trend) {
-	case THERMAL_TREND_RAISING:
-		if (throttle) {
-			next_target = cur_state < instance->upper ?
-				    (cur_state + 1) : instance->upper;
-			if (next_target < instance->lower)
-				next_target = instance->lower;
-		}
-		break;
-	case THERMAL_TREND_RAISE_FULL:
-		if (throttle)
-			next_target = instance->upper;
-		break;
-	case THERMAL_TREND_DROPPING:
-		if (cur_state <= instance->lower) {
-			if (!throttle)
-				next_target = THERMAL_NO_TARGET;
-		} else {
-			if (!throttle) {
-				next_target = cur_state - 1;
-				if (next_target > instance->upper)
-					next_target = instance->upper;
-			}
-		}
-		break;
-	case THERMAL_TREND_DROP_FULL:
-		if (cur_state == instance->lower) {
-			if (!throttle)
-				next_target = THERMAL_NO_TARGET;
-		} else
-			next_target = instance->lower;
-		break;
-	default:
-		break;
-	}
-
-	return next_target;
-}
-
-static void update_passive_instance(struct thermal_zone_device *tz,
-				enum thermal_trip_type type, int value)
-{
-	/*
-	 * If value is +1, activate a passive instance.
-	 * If value is -1, deactivate a passive instance.
-	 */
-	if (type == THERMAL_TRIP_PASSIVE || type == THERMAL_TRIPS_NONE)
-		tz->passive += value;
-}
-
-static void thermal_zone_trip_update(struct thermal_zone_device *tz, int trip)
-{
-	int trip_temp;
-	enum thermal_trip_type trip_type;
-	enum thermal_trend trend;
-	struct thermal_instance *instance;
-	bool throttle = false;
-	int old_target;
-
-	if (trip == THERMAL_TRIPS_NONE) {
-		trip_temp = tz->forced_passive;
-		trip_type = THERMAL_TRIPS_NONE;
-	} else {
-		tz->ops->get_trip_temp(tz, trip, &trip_temp);
-		tz->ops->get_trip_type(tz, trip, &trip_type);
-	}
-
-	trend = get_tz_trend(tz, trip);
-
-	if (tz->temperature >= trip_temp) {
-		throttle = true;
-		trace_thermal_zone_trip(tz, trip, trip_type);
-	}
-
-	dev_dbg(&tz->device, "Trip%d[type=%d,temp=%d]:trend=%d,throttle=%d\n",
-				trip, trip_type, trip_temp, trend, throttle);
-
-	mutex_lock(&tz->lock);
-
-	list_for_each_entry(instance, &tz->thermal_instances, tz_node) {
-		if (instance->trip != trip)
-			continue;
-
-		old_target = instance->target;
-		instance->target = get_target_state(instance, trend, throttle);
-		dev_dbg(&instance->cdev->device, "old_target=%d, target=%d\n",
-					old_target, (int)instance->target);
-
-		if (instance->initialized && old_target == instance->target)
-			continue;
-
-		/* Activate a passive thermal instance */
-		if (old_target == THERMAL_NO_TARGET &&
-			instance->target != THERMAL_NO_TARGET)
-			update_passive_instance(tz, trip_type, 1);
-		/* Deactivate a passive thermal instance */
-		else if (old_target != THERMAL_NO_TARGET &&
-			instance->target == THERMAL_NO_TARGET)
-			update_passive_instance(tz, trip_type, -1);
-
-		instance->initialized = true;
-		mutex_lock(&instance->cdev->lock);
-		instance->cdev->updated = false; /* cdev needs update */
-		mutex_unlock(&instance->cdev->lock);
-	}
-
-	mutex_unlock(&tz->lock);
-}
-
-/**
- * step_wise_throttle - throttles devices associated with the given zone
- * @tz: thermal_zone_device
- * @trip: trip point index
- *
- * Throttling Logic: This uses the trend of the thermal zone to throttle.
- * If the thermal zone is 'heating up' this throttles all the cooling
- * devices associated with the zone and its particular trip point, by one
- * step. If the zone is 'cooling down' it brings back the performance of
- * the devices by one step.
- */
-static int step_wise_throttle(struct thermal_zone_device *tz, int trip)
-{
-	struct thermal_instance *instance;
-
-	thermal_zone_trip_update(tz, trip);
-
-	if (tz->forced_passive)
-		thermal_zone_trip_update(tz, THERMAL_TRIPS_NONE);
-
-	mutex_lock(&tz->lock);
-
-	list_for_each_entry(instance, &tz->thermal_instances, tz_node)
-		thermal_cdev_update(instance->cdev);
-
-	mutex_unlock(&tz->lock);
-
-	return 0;
-}
-
-static struct thermal_governor thermal_gov_step_wise = {
-	.name		= "step_wise",
-	.throttle	= step_wise_throttle,
-};
-THERMAL_GOVERNOR_DECLARE(thermal_gov_step_wise);