108 lines
3.1 KiB
C
108 lines
3.1 KiB
C
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/*
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* OMAP thermal definitions
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*
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* Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/
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* Contact:
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* Eduardo Valentin <eduardo.valentin@ti.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* 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., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#ifndef __TI_THERMAL_H
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#define __TI_THERMAL_H
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#include "ti-bandgap.h"
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/* PCB sensor calculation constants */
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#define OMAP_GRADIENT_SLOPE_W_PCB_4430 0
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#define OMAP_GRADIENT_CONST_W_PCB_4430 20000
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#define OMAP_GRADIENT_SLOPE_W_PCB_4460 1142
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#define OMAP_GRADIENT_CONST_W_PCB_4460 -393
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#define OMAP_GRADIENT_SLOPE_W_PCB_4470 1063
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#define OMAP_GRADIENT_CONST_W_PCB_4470 -477
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#define OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU 100
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#define OMAP_GRADIENT_CONST_W_PCB_5430_CPU 484
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#define OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU 464
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#define OMAP_GRADIENT_CONST_W_PCB_5430_GPU -5102
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#define DRA752_GRADIENT_SLOPE_W_PCB 0
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#define DRA752_GRADIENT_CONST_W_PCB 2000
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/* trip points of interest in milicelsius (at hotspot level) */
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#define OMAP_TRIP_COLD 100000
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#define OMAP_TRIP_HOT 110000
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#define OMAP_TRIP_SHUTDOWN 125000
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#define OMAP_TRIP_NUMBER 2
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#define OMAP_TRIP_STEP \
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((OMAP_TRIP_SHUTDOWN - OMAP_TRIP_HOT) / (OMAP_TRIP_NUMBER - 1))
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/* Update rates */
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#define FAST_TEMP_MONITORING_RATE 250
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/* helper macros */
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/**
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* ti_thermal_get_trip_value - returns trip temperature based on index
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* @i: trip index
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*/
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#define ti_thermal_get_trip_value(i) \
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(OMAP_TRIP_HOT + ((i) * OMAP_TRIP_STEP))
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/**
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* ti_thermal_is_valid_trip - check for trip index
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* @i: trip index
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*/
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#define ti_thermal_is_valid_trip(trip) \
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((trip) >= 0 && (trip) < OMAP_TRIP_NUMBER)
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#ifdef CONFIG_TI_THERMAL
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int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain);
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int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id);
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int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id);
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int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id);
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int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id);
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#else
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static inline
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int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain)
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{
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return 0;
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}
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static inline
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int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id)
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{
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return 0;
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}
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static inline
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int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id)
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{
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return 0;
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}
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static inline
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int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id)
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{
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return 0;
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}
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static inline
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int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id)
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{
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return 0;
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}
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#endif
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#endif
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