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e654a0c58d
In preparation for subsequent changes, move two functions used for updating trip points, thermal_zone_set_trip_temp() and thermal_zone_set_trip_hyst(), to thermal_core.c. No functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Link: https://patch.msgid.link/3248558.5fSG56mABF@rjwysocki.net
91 lines
2.1 KiB
C
91 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2008 Intel Corp
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* Copyright (C) 2008 Zhang Rui <rui.zhang@intel.com>
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* Copyright (C) 2008 Sujith Thomas <sujith.thomas@intel.com>
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* Copyright 2022 Linaro Limited
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*
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* Thermal trips handling
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*/
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#include "thermal_core.h"
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static const char *trip_type_names[] = {
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[THERMAL_TRIP_ACTIVE] = "active",
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[THERMAL_TRIP_PASSIVE] = "passive",
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[THERMAL_TRIP_HOT] = "hot",
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[THERMAL_TRIP_CRITICAL] = "critical",
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};
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const char *thermal_trip_type_name(enum thermal_trip_type trip_type)
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{
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if (trip_type < THERMAL_TRIP_ACTIVE || trip_type > THERMAL_TRIP_CRITICAL)
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return "unknown";
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return trip_type_names[trip_type];
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}
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int for_each_thermal_trip(struct thermal_zone_device *tz,
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int (*cb)(struct thermal_trip *, void *),
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void *data)
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{
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struct thermal_trip_desc *td;
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int ret;
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for_each_trip_desc(tz, td) {
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ret = cb(&td->trip, data);
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if (ret)
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return ret;
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}
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return 0;
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}
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EXPORT_SYMBOL_GPL(for_each_thermal_trip);
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int thermal_zone_for_each_trip(struct thermal_zone_device *tz,
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int (*cb)(struct thermal_trip *, void *),
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void *data)
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{
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guard(thermal_zone)(tz);
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return for_each_thermal_trip(tz, cb, data);
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}
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EXPORT_SYMBOL_GPL(thermal_zone_for_each_trip);
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void thermal_zone_set_trips(struct thermal_zone_device *tz, int low, int high)
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{
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int ret;
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lockdep_assert_held(&tz->lock);
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if (!tz->ops.set_trips)
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return;
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/* No need to change trip points */
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if (tz->prev_low_trip == low && tz->prev_high_trip == high)
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return;
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tz->prev_low_trip = low;
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tz->prev_high_trip = high;
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dev_dbg(&tz->device,
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"new temperature boundaries: %d < x < %d\n", low, high);
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/*
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* Set a temperature window. When this window is left the driver
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* must inform the thermal core via thermal_zone_device_update.
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*/
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ret = tz->ops.set_trips(tz, low, high);
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if (ret)
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dev_err(&tz->device, "Failed to set trips: %d\n", ret);
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}
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int thermal_zone_trip_id(const struct thermal_zone_device *tz,
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const struct thermal_trip *trip)
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{
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/*
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* Assume the trip to be located within the bounds of the thermal
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* zone's trips[] table.
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*/
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return trip_to_trip_desc(trip) - tz->trips;
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}
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