a0395eee7c
This patch modifies TMU controller to add changes needed to work with exynos5440 platform. This sensor registers 3 instance of the tmu controller with the thermal zone and hence reports 3 temperature output. This controller supports upto five trip points. For critical threshold the driver uses the core driver thermal framework for shutdown. Acked-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Acked-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Jungseok Lee <jays.lee@samsung.com> Signed-off-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Acked-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
/*
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* exynos_thermal_common.h - Samsung EXYNOS common header file
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*
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* Copyright (C) 2013 Samsung Electronics
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* Amit Daniel Kachhap <amit.daniel@samsung.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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*/
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#ifndef _EXYNOS_THERMAL_COMMON_H
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#define _EXYNOS_THERMAL_COMMON_H
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/* In-kernel thermal framework related macros & definations */
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#define SENSOR_NAME_LEN 16
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#define MAX_TRIP_COUNT 8
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#define MAX_COOLING_DEVICE 4
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#define MAX_THRESHOLD_LEVS 5
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#define ACTIVE_INTERVAL 500
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#define IDLE_INTERVAL 10000
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#define MCELSIUS 1000
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/* CPU Zone information */
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#define PANIC_ZONE 4
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#define WARN_ZONE 3
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#define MONITOR_ZONE 2
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#define SAFE_ZONE 1
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#define GET_ZONE(trip) (trip + 2)
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#define GET_TRIP(zone) (zone - 2)
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enum trigger_type {
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THROTTLE_ACTIVE = 1,
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THROTTLE_PASSIVE,
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SW_TRIP,
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HW_TRIP,
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};
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/**
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* struct freq_clip_table
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* @freq_clip_max: maximum frequency allowed for this cooling state.
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* @temp_level: Temperature level at which the temperature clipping will
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* happen.
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* @mask_val: cpumask of the allowed cpu's where the clipping will take place.
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*
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* This structure is required to be filled and passed to the
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* cpufreq_cooling_unregister function.
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*/
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struct freq_clip_table {
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unsigned int freq_clip_max;
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unsigned int temp_level;
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const struct cpumask *mask_val;
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};
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struct thermal_trip_point_conf {
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int trip_val[MAX_TRIP_COUNT];
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int trip_type[MAX_TRIP_COUNT];
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int trip_count;
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unsigned char trigger_falling;
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};
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struct thermal_cooling_conf {
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struct freq_clip_table freq_data[MAX_TRIP_COUNT];
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int freq_clip_count;
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};
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struct thermal_sensor_conf {
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char name[SENSOR_NAME_LEN];
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int (*read_temperature)(void *data);
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int (*write_emul_temp)(void *drv_data, unsigned long temp);
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struct thermal_trip_point_conf trip_data;
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struct thermal_cooling_conf cooling_data;
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void *driver_data;
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void *pzone_data;
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struct device *dev;
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};
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/*Functions used exynos based thermal sensor driver*/
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#ifdef CONFIG_EXYNOS_THERMAL_CORE
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void exynos_unregister_thermal(struct thermal_sensor_conf *sensor_conf);
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int exynos_register_thermal(struct thermal_sensor_conf *sensor_conf);
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void exynos_report_trigger(struct thermal_sensor_conf *sensor_conf);
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#else
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static inline void
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exynos_unregister_thermal(struct thermal_sensor_conf *sensor_conf) { return; }
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static inline int
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exynos_register_thermal(struct thermal_sensor_conf *sensor_conf) { return 0; }
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static inline void
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exynos_report_trigger(struct thermal_sensor_conf *sensor_conf) { return; }
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#endif /* CONFIG_EXYNOS_THERMAL_CORE */
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#endif /* _EXYNOS_THERMAL_COMMON_H */
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