1 /* 2 * OMAP thermal definitions 3 * 4 * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com/ 5 * Contact: 6 * Eduardo Valentin <eduardo.valentin@ti.com> 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License 10 * version 2 as published by the Free Software Foundation. 11 * 12 * This program is distributed in the hope that it will be useful, but 13 * WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 20 * 02110-1301 USA 21 * 22 */ 23 #ifndef __TI_THERMAL_H 24 #define __TI_THERMAL_H 25 26 #include "ti-bandgap.h" 27 28 /* sensors gradient and offsets */ 29 #define OMAP_GRADIENT_SLOPE_4430 0 30 #define OMAP_GRADIENT_CONST_4430 20000 31 #define OMAP_GRADIENT_SLOPE_4460 348 32 #define OMAP_GRADIENT_CONST_4460 -9301 33 #define OMAP_GRADIENT_SLOPE_4470 308 34 #define OMAP_GRADIENT_CONST_4470 -7896 35 36 #define OMAP_GRADIENT_SLOPE_5430_CPU 65 37 #define OMAP_GRADIENT_CONST_5430_CPU -1791 38 #define OMAP_GRADIENT_SLOPE_5430_GPU 117 39 #define OMAP_GRADIENT_CONST_5430_GPU -2992 40 41 #define DRA752_GRADIENT_SLOPE 0 42 #define DRA752_GRADIENT_CONST 2000 43 44 /* PCB sensor calculation constants */ 45 #define OMAP_GRADIENT_SLOPE_W_PCB_4430 0 46 #define OMAP_GRADIENT_CONST_W_PCB_4430 20000 47 #define OMAP_GRADIENT_SLOPE_W_PCB_4460 1142 48 #define OMAP_GRADIENT_CONST_W_PCB_4460 -393 49 #define OMAP_GRADIENT_SLOPE_W_PCB_4470 1063 50 #define OMAP_GRADIENT_CONST_W_PCB_4470 -477 51 52 #define OMAP_GRADIENT_SLOPE_W_PCB_5430_CPU 100 53 #define OMAP_GRADIENT_CONST_W_PCB_5430_CPU 484 54 #define OMAP_GRADIENT_SLOPE_W_PCB_5430_GPU 464 55 #define OMAP_GRADIENT_CONST_W_PCB_5430_GPU -5102 56 57 #define DRA752_GRADIENT_SLOPE_W_PCB 0 58 #define DRA752_GRADIENT_CONST_W_PCB 2000 59 60 /* trip points of interest in milicelsius (at hotspot level) */ 61 #define OMAP_TRIP_COLD 100000 62 #define OMAP_TRIP_HOT 110000 63 #define OMAP_TRIP_SHUTDOWN 125000 64 #define OMAP_TRIP_NUMBER 2 65 #define OMAP_TRIP_STEP \ 66 ((OMAP_TRIP_SHUTDOWN - OMAP_TRIP_HOT) / (OMAP_TRIP_NUMBER - 1)) 67 68 /* Update rates */ 69 #define FAST_TEMP_MONITORING_RATE 250 70 71 /* helper macros */ 72 /** 73 * ti_thermal_get_trip_value - returns trip temperature based on index 74 * @i: trip index 75 */ 76 #define ti_thermal_get_trip_value(i) \ 77 (OMAP_TRIP_HOT + ((i) * OMAP_TRIP_STEP)) 78 79 /** 80 * ti_thermal_is_valid_trip - check for trip index 81 * @i: trip index 82 */ 83 #define ti_thermal_is_valid_trip(trip) \ 84 ((trip) >= 0 && (trip) < OMAP_TRIP_NUMBER) 85 86 #ifdef CONFIG_TI_THERMAL 87 int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain); 88 int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id); 89 int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id); 90 int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id); 91 int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id); 92 #else 93 static inline 94 int ti_thermal_expose_sensor(struct ti_bandgap *bgp, int id, char *domain) 95 { 96 return 0; 97 } 98 99 static inline 100 int ti_thermal_remove_sensor(struct ti_bandgap *bgp, int id) 101 { 102 return 0; 103 } 104 105 static inline 106 int ti_thermal_report_sensor_temperature(struct ti_bandgap *bgp, int id) 107 { 108 return 0; 109 } 110 111 static inline 112 int ti_thermal_register_cpu_cooling(struct ti_bandgap *bgp, int id) 113 { 114 return 0; 115 } 116 117 static inline 118 int ti_thermal_unregister_cpu_cooling(struct ti_bandgap *bgp, int id) 119 { 120 return 0; 121 } 122 #endif 123 #endif 124